determine the degree of the maclaurin polynomial required for the error in the approximation of the function at the indicated value of x to be less than 0.001.f(x) = sin(x), approximate f(0.5)

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Answer 1

the answer is degree of the Maclaurin polynomial required for the error in the approximation of the function at the indicated value of x to be less than 0.001 is 7.

To determine the degree of the Maclaurin polynomial required for the error in the approximation of the function at the indicated value of x to be less than 0.001, given f(x) = sin(x), we need to approximate f(0.5).The formula to calculate the degree of Maclaurin polynomial required for the error in the approximation of the function at the indicated value of x to be less than the given amount is:$$R_n(x) = \frac{f^{n+1}(c)}{(n+1)!}(x-a)^{n+1}$$where c is a value between a and x, and Rn(x) is the remainder function.Then, to find the degree of the Maclaurin polynomial required for the error in the approximation of the function at the indicated value of x to be less than 0.001, we use the inequality:$$|R_n(x)| \leq \frac{M}{(n+1)!}|x-a|^{n+1}$$where M is an upper bound for the $(n+1)^{th}$ derivative of f on an interval containing a and x.To approximate f(0.5), we use the formula for the Maclaurin series expansion of sin(x):$$\sin(x) = \sum_{n=0}^{\infty}(-1)^n \frac{x^{2n+1}}{(2n+1)!}$$Thus, for f(x) = sin(x) and a = 0, we have:$$f(x) = \sin(x)$$$$f(0) = \sin(0) = 0$$$$f'(x) = \cos(x)$$$$f'(0) = \cos(0) = 1$$$$f''(x) = -\sin(x)$$$$f''(0) = -\sin(0) = 0$$$$f'''(x) = -\cos(x)$$$$f'''(0) = -\cos(0) = -1$$$$f^{(4)}(x) = \sin(x)$$$$f^{(4)}(0) = \sin(0) = 0$$$$f^{(5)}(x) = \cos(x)$$$$f^{(5)}(0) = \cos(0) = 1$$Thus, M = 1 for all values of x, and we have:$$|R_n(x)| \leq \frac{1}{(n+1)!}|x|^n$$To make this less than 0.001 when x = 0.5, we need to find n such that:$$\frac{1}{(n+1)!}0.5^{n+1} \leq 0.001$$Dividing both sides by 0.001 gives:$$\frac{1}{0.001(n+1)!}0.5^{n+1} \leq 1$$Taking the natural logarithm of both sides gives:$$\ln\left(\frac{0.5^{n+1}}{0.001(n+1)!}\right) \leq 0$$Using a calculator, we can find that the smallest value of n that satisfies this inequality is n = 7. Therefore, the degree of the Maclaurin polynomial required for the error in the approximation of sin(0.5) to be less than 0.001 is 7.

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Answer 2

The degree of the Maclaurin polynomial required for the error in the approximation of the function at the indicated value of x to be less than 0.001 is 3.

Given the function f(x) = sin(x) and we need to determine the degree of the Maclaurin polynomial required for the error in the approximation of the function at the indicated value of x to be less than 0.001.

We need to approximate f(0.5).

Maclaurin Polynomial: The Maclaurin polynomial of order n for a given function f(x) is the nth-degree Taylor polynomial for f(x) at x = 0. It is given by the formula:

[tex]Pn(x) = f(0) + f'(0)x + f''(0)x²/2! + ... + fⁿ⁽ᶰ⁾(0)xⁿ/ⁿ![/tex]

Where fⁿ⁽ᶰ⁾(0) denotes the nth derivative of f(x) evaluated at x = 0.

To determine the degree of the Maclaurin polynomial required for the error in the approximation of the function at the indicated value of x to be less than 0.001, we use the error formula.

Error formula:

[tex]|f(x) - Pn(x)| <= M(x-a)^(n+1)/(n+1)![/tex]

where M = max|fⁿ⁽ᶰ⁾(x)| over the interval containing x and a. For f(x) = sin(x)

and a = 0, we have f(0) = sin(0) = 0, f'(x) = cos(x), f''(x) = -sin(x), f'''(x) = -cos(x), f⁽⁴⁾(x) = sin(x), f⁽⁵⁾(x) = cos(x), f⁽⁶⁾(x) = -sin(x), ...

Thus, [tex]|f⁽ⁿ⁾(x)| <= 1[/tex] for all n and x.

Therefore, [tex]M = 1.|x-a| = |0.5-0| = 0.5[/tex]

Thus,[tex]|f(x) - Pn(x)| <= M(x-a)^(n+1)/(n+1)![/tex]

=> [tex]|sin(x) - Pn(x)| <= 0.5^(n+1)/(n+1)![/tex]

We need [tex]|sin(0.5) - Pn(0.5)| <= 0.001[/tex].

So, [tex]0.5^(n+1)/(n+1)! <= 0.001[/tex]

n = 3 (Minimum value of n to satisfy the condition).

Using the Maclaurin polynomial of degree 3, we have

[tex]P₃(x) = sin(0) + cos(0)x - sin(0)x²/2! - cos(0)x³/3! = x - x³/3[/tex]

Therefore, the degree of the Maclaurin polynomial required for the error in the approximation of the function at the indicated value of x to be less than 0.001 is 3.

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Related Questions

A share of a company's stock is currently traded at Xo = 50 Gils. Its price is assumed to follow an arithmetic Brownian motion with drift coefficient μ = 5 Gils.year and diffusion coefficient = 4 Gil

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Arithmetic Brownian motion is a stochastic process used to model the random behavior of a stock price. It consists of two components: a deterministic drift term and a stochastic diffusion term.

The drift coefficient (μ) represents the average rate of change of the stock price over time. In this case, μ = 5 Gils/year indicates that, on average, the stock price increases by 5 Gils per year. The diffusion coefficient (σ) represents the volatility or randomness in the stock price. In this case, σ = 4 Gils/year indicates that the stock price can fluctuate by up to 4 Gils in a year. However, it seems like some information is missing from the question. Specifically, the initial price of the stock (Xo) is given as 50 Gils, but it is unclear what further information or analysis is required.

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"How does arithmetic Brownian motion capture the random behavior of stock prices, and what are the two components that make up this stochastic process?"

Probability and Statistics for Engineering and the Sciences (8th Edition) Chapter 5, Problem 25E

What is the point of Step 1 in the step-by-step solution?

Answers

The step 1 in the step-by-step solution for the problem number 25E from Chapter 5 of Probability and Statistics for Engineering and the Sciences (8th Edition) serves to represent the probability density function as a function of the data.

The accompanying data represent the age (in years) of 50 randomly selected people:27.9 45.6 42.4 39.1 48.6 39.0 38.5 47.5 41.8 49.1 34.1 34.4 40.6 45.3 37.1 36.0 46.3 42.6 32.7 36.2 34.5 31.9 31.5 43.6 37.5 38.2 43.3 49.2 50.7 41.8 40.0 51.7 48.0 48.7 43.5 36.3 30.4 37.5 32.4 45.7 35.4 39.9 47.8 39.5 39.3 41.7 35.8 46.9 43.1 35.6Construct a histogram for the data, using the classes indicated.

Then sketch the graph of a probability density function that might reasonably be used to model these data. Use the graph to estimate the following probabilities:(a) P(age > 40)(b) P(30 < age < 50)(c) P(age < 35)The step-by-step solution to the problem is as follows:Step 1The given data represents the random variable age (in years) of 50 people, therefore, it is continuous.

The data can be represented in the form of a histogram with the given classes as shown below:The frequency of each class is calculated by counting the number of data points in each class. The height of each bar is the frequency density, which is the frequency of the class divided by the width of the class. The height of the bar is given as the probability density function that might reasonably be used to model these data.

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when variables compete to explain the same effects, what are they sometimes called?

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When variables compete to explain the same effects, they are sometimes called "colliders".

Variables are units of measure that may take on various values and affect the outcome of the analysis. As a result, the effect size of one variable might alter the effect size of another, which can cause problems in correctly evaluating the influence of one variable on the outcome variable.

In science, an effect refers to the impact of one event, process, or object on another, and it can be positive or negative.

Effects can be evaluated to determine their degree and impact, as well as the causes that underlie them.

In some instances, one variable (V1) might influence another variable (V2), which in turn affects a third variable (V3). When the two variables are related but are not directly connected, this situation is known as a collider.

In summary, when variables compete to explain the same effects, they are referred to as "colliders."

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please help me :( i don't understand how to do this problem
-5-(10 points) Let X be a binomial random variable with n=4 and p=0.45. Compute the following probabilities. -a-P(X=0)= -b-P(x-1)- -c-P(X=2)- -d-P(X ≤2)- -e-P(X23) - W

Answers

The probability of X = 0 for a binomial random variable with n = 4 and p = 0.45 is approximately 0.0897.

To compute the probability of X = 0 for a binomial random variable, we can use the probability mass function (PMF) formula:

[tex]P(X = k) = C(n, k) * p^k * (1 - p)^(n - k)[/tex]

Where:

- P(X = k) is the probability of X taking the value k.

- C(n, k) is the binomial coefficient, given by C(n, k) = n! / (k! * (n - k)!).

- n is the number of trials.

- p is the probability of success on each trial.

- k is the desired number of successes.

In this case, we have n = 4 and p = 0.45. We want to find P(X = 0), so k = 0. Plugging in these values, we get:

[tex]P(X = 0) = C(4, 0) * 0.45^0 * (1 - 0.45)^(4 - 0)[/tex]

The binomial coefficient C(4, 0) is equal to 1, and any number raised to the power of 0 is 1. Thus, the calculation simplifies to:

[tex]P(X = 0) = 1 * 1 * (1 - 0.45)^4P(X = 0) = 1 * 1 * 0.55^4P(X = 0) = 0.55^4[/tex]

Calculating this expression, we find:

P(X = 0) ≈ 0.0897

Therefore, the probability of X = 0 for the binomial random variable is approximately 0.0897.

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Suppose that X is normally distributed with mean 95 and standard
deviation 30. A. What is the probability that X is greater than
152.9? Probability = B. What value of X does only the top 20%
exceed? X

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`Probability = 0.0276`, `X = 120.2`.

.a) What is the probability that `X` is greater than `152.9`?`

z = (X - µ) / σ``z = (152.9 - 95) / 30``z = 1.93`

The probability that X is greater than 152.9 is the area to the right of z = 1.93 under the standard normal curve. Using the z-table, we find this area to be 0.0276.

Therefore, the probability is 0.0276.

Hence, `Probability = 0.0276`

.b) What value of `X` does only the top 20% exceed?

To find the value of `X` corresponding to the top 20% of the distribution, we need to find the z-score that has 20% of the area to the right of it under the standard normal curve.

Using the z-table, we find that the z-score that has 20% of the area to the right of it is 0.84.

Therefore,`z = 0.84``0.84 = (X - µ) / σ`

Substituting the values, we get:`0.84 = (X - 95) / 30`

Solving for `X`, we get:`X - 95 = 0.84 × 30``X - 95 = 25.2``X = 95 + 25.2 = 120.2`

Therefore, the value of `X` that only the top 20% exceeds is `X = 120.2`.

Hence, `X = 120.2`.

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What is the area of the region in the first quadrant bounded on the left by the graph of x = √y4+1 and on the right by the graph of x = 2y?

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The area of the region in the first quadrant bounded on the left by the graph of x = √([tex]y^4[/tex] + 1) and on the right by the graph of x = 2y is 4/3 square units.

To find the area of the region, we need to determine the limits of integration and then integrate the difference between the two curves with respect to y.

First, we set the two equations equal to each other to find the limits of integration: √([tex]y^4[/tex] + 1) = 2y.

Squaring both sides, we get [tex]y^4[/tex] + 1 = 4[tex]y^2[/tex], which simplifies to [tex]y^4[/tex]- 4[tex]y^2[/tex] + 1 = 0.

Factoring the quadratic equation, we get ([tex]y^2[/tex] - 1)([tex]y^2[/tex] - 1) = 0, which gives us two possible values for y: y = 1 and y = -1.

Since we are interested in the region in the first quadrant, we take the positive value y = 1 as the upper limit of integration and y = 0 as the lower limit of integration.

The area is given by the integral ∫[0, 1] (2y - √([tex]y^4[/tex] + 1)) dy.

Evaluating the integral, we find that the area is 4/3 square units.

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5. (5 marks) A data packet crosses two different routers before reaching its destination. Assuming the delay introduced by the two routers are exponentially distributed with pdf b₁(x) = μ₁e and b

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The expression for the mean of the total delay introduced by the two routers before reaching its destination is given as; μ = [1/(μ₁ + μ₂)] * [(μ₁ + μ₂y) - (1/μ₁) - (1/μ₂)] ;for 0 < x < y

The provided probability density function, which represents the delay introduced by the two routers is;b₁(x) = μ₁e ; b₂(x) = μ₂e ;

Therefore, the probability density function for the total delay is given as;

f(x) = μ₁μ₂e^(-μ₁x - μ₂(x - y))for 0 < x < y

The mean of the probability density function is given by;

μ = ∫x * f(x) dx

= ∫(x * μ₁μ₂e^(-μ₁x - μ₂(x - y))) dx

= ∫(xμ₁μ₂e^(-μ₁x - μ₂x + μ₂y)) dx

On integration, we get;μ = [1/(μ₁ + μ₂)] * [(μ₁ + μ₂y) - (1/μ₁) - (1/μ₂)] ;for 0 < x < y

Therefore, the expression for the mean of the total delay introduced by the two routers before reaching its destination is given as;

μ = [1/(μ₁ + μ₂)] * [(μ₁ + μ₂y) - (1/μ₁) - (1/μ₂)] ;for 0 < x < y

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in δrst, m∠r=(6x 10)∘m∠r=(6x 10)∘, m∠s=(2x 5)∘m∠s=(2x 5)∘, and m∠t=(3x−11)∘m∠t=(3x−11)∘. find m∠r.m∠r.

Answers

Given that in δrst, m[tex]∠r = (6x + 10)°[/tex], m[tex]∠s = (2x + 5)°[/tex], and m [tex]∠t = (3x - 11)°[/tex]. We need to find m ∠r. Let's use the angle sum property of the triangle to find the value of m ∠r as follows; The sum of the angles of a triangle is 180°.

Therefore, m[tex]∠r + m ∠s + m ∠t = 180°(6x + 10)° + (2x + 5)° + (3x - 11)° = 180°11x - 6° = 180°11x = 180° + 6°11x = 186°x = 186°/11m∠r = (6x + 10)°= (6(186°/11) + 10)°= (1116°/11 + 110/11)°= (1226°/11)°m ∠r = 111.45° or 111.4°[/tex](rounded to one decimal place) Therefore, m ∠r is approximately equal to [tex]111.4°[/tex] or [tex]111.45°[/tex]. Thus, the required solution.

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The events XX and YY are mutually exclusive. Suppose P(X) = 0.20 and P(Y) = 0.18.

What is the probability of either XX or YY occurring? (Round your answer to 2 decimal places.)

What is the probability that neither XX nor YY will happen? (Round your answer to 2 decimal places.)

Answers

The probability that neither X nor Y will happen is 0.62.

Given that the events X and Y are mutually exclusive and the probabilities of P(X) and P(Y) are 0.20 and 0.18 respectively.To find :

1. The probability of either X or Y occurring

2. The probability that neither X nor Y will happen

Solution:1. The probability of either X or Y occurring

P(X or Y) = P(X) + P(Y) - P(X and Y)

As the events are mutually exclusive, the probability of both happening is 0.

P(X or Y) = P(X) + P(Y) - 0= 0.20 + 0.18 - 0= 0.38

Hence, the probability of either X or Y occurring is 0.38.2.

The probability that neither X nor Y will happenP(neither X nor Y) = 1 - P(X or Y)As P(X or Y) = 0.38P(neither X nor Y) = 1 - 0.38= 0.62.

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The additional growth of plants in one week are recorded for 11 plants with a sample standard deviation of 2 inches and sample mean of 9 inches. t* at the 0.05 significance level = Ex: 1.234 Margin of error = Ex: 1.234 Confidence interval = [Ex: 12.345 Ex: 12.345] [smaller value, larger value]

Answers

The margin of error is 0.809 inches and the confidence interval is [8.19, 9.81]

The sample standard deviation is s = 2

The sample mean is x = 9

The sample size is n = 11

Significance level is α = 0.05

Degree of freedom = n - 1 = 11 - 1 = 10

The t-distribution value for 10 degrees of freedom and 0.05 level of significance is 2.228.

Here, we need to find the margin of error and confidence interval.

The formula for margin of error is:

margin of error = critical value × standard error

standard error = s/√n

standard error = 2/√11

standard error = 0.603

Critical value = t* × (standard error)

Critical value = 2.228 × (0.603)

Critical value = 1.341

Margin of error = 1.341 × 0.603

Margin of error = 0.809

The formula for confidence interval is:

Confidence interval = sample mean ± margin of error

Confidence interval = 9 ± 0.809

Confidence interval = [8.19, 9.81]

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1 11. this table shows the input and output values for a linear function f(x). what is the difference of outputs for any two inputs that are one value apart? -15 30 15 -30

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The difference of outputs for any two inputs that are one value apart in the given linear function is 15.

A linear function represents a straight line on a graph and can be expressed in the form of f(x) = mx + b, where m is the slope and b is the y-intercept. In this case, we are given a table of input and output values for the linear function f(x). By examining the given values, we can observe that for any two inputs that are one value apart, the outputs differ by 15.

Let's consider the given input and output values: -15, 30, 15, -30. We can calculate the difference of outputs for inputs that are one value apart.

For input -15, the corresponding output is 30.

For input 15, the corresponding output is -30.

The difference between the outputs (-30 - 30) is -60. However, since we are interested in the absolute difference, we take the absolute value of -60, which is 60.

Hence, the difference of outputs for any two inputs that are one value apart in this linear function is 15 (the absolute value of -60). This indicates that for every increase of one unit in the input, the output decreases by 15, demonstrating a constant rate of change in the linear function.

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Verify that the following function is a probability mass function, and determine the requested probabilities. f(x) = (216/43)(1/6)*, x = {1,2,3} Round your answers to four decimal places (e.g. 98.7654

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The given function f(x) does not satisfy the condition of being a probability mass function (PMF) since the sum of probabilities is not equal to 1.

What method is used for the verification?

To verify that the function f(x) is a probability mass function (PMF), we need to check two conditions:

Non-Negativity: The values of f(x) must be non-negative for all possible values of x.

The sum of Probabilities: The sum of all f(x) values must be equal to 1.

Let's calculate the values of f(x) and check these conditions:

f(1) = (216/43)(1/6) = 4/43 ≈ 0.0930

f(2) = (216/43)(1/6) = 4/43 ≈ 0.0930

f(3) = (216/43)(1/6) = 4/43 ≈ 0.0930

The values of f(x) for x = 1, 2, and 3 are all non-negative, satisfying the non-negativity condition.

Now, let's check the sum of probabilities:

f(1) + f(2) + f(3) = 0.0930 + 0.0930 + 0.0930 = 0.2790

The sum of probabilities is 0.2790, which is not equal to 1.

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Let theta be an acute angle of a right triangle. Find the values of the other five trigonometric functions of theta.

Answers

The exact values of the remaining trigonometric functions are listed below:

Case 3: cos θ = 3 / 5, tan θ = 4 / 3, cot θ = 3 / 4, sec θ = 5 / 3, csc θ = 5 / 4

Case 4: sin θ = √11 / 6, tan θ = √11 / 5, cot θ = 5√11 / 5, sec θ = 6 / 5, csc θ = 6√11 / 11

Case 5: cos θ = 8√73 / 73, sin θ = 3√73 / 73, tan θ = 3 / 8, cot θ = 8 / 3, csc θ = √73 / 3

Case 6: sin θ = 1 / 2, cos θ = √3 / 2, tan θ = √3 / 3, sec θ = 2√3 / 3, csc θ = 2

How to find the exact values of trigonometric functions

In this problem we find four cases of trigonometric functions, whose exact values of remaining trigonometric functions must be found. The trigonometric functions are defined below:

sin θ = y / √(x² + y²)

cos θ = x / √(x² + y²)

tan θ = y / x

cot θ = x / y

sec θ = √(x² + y²) / x

csc θ = √(x² + y²) / y

Now we proceed to determine the exact values of the trigonometric functions:

Case 3: y = 4, √(x² + y²) = 5

x = √(5² - 4²)

x = 3

cos θ = 3 / 5

tan θ = 4 / 3

cot θ = 3 / 4

sec θ = 5 / 3

csc θ = 5 / 4

Case 4: x = 5, √(x² + y²) = 6

y = √(6² - 5²)

y = √11

sin θ = √11 / 6

tan θ = √11 / 5

cot θ = 5√11 / 5

sec θ = 6 / 5

csc θ = 6√11 / 11

Case 5: x = 8, √(x² + y²) = √73

y = √(73 - 8²)

y = 3

cos θ = 8√73 / 73

sin θ = 3√73 / 73

tan θ = 3 / 8

cot θ = 8 / 3

csc θ = √73 / 3

Case 6: x = √3, y = 1

sin θ = 1 / 2

cos θ = √3 / 2

tan θ = √3 / 3

sec θ = 2√3 / 3

csc θ = 2

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Factor the expression. Use the fundamental identities to simplify, if necessary. (There is more than one correct form of each answer. Show Work)

1. 1 − 2 cos2(x) + cos4(x)

2. 2 sec3(x) − 2 sec2(x) − 2 sec(x) + 2

3. 5 sin2(x) − 14 sin(x) − 3

Answers

The simplified expression using fundamental identities are:

1. sin²(x) + (cos²(x))²

2. 2(sec(x) - 1)(tan²(x))

3. The factored form is (5sin(x) + 1)(sin(x) - 3).

How to simplify the expression 1 − 2 cos2(x) + cos4(x)?

Let's factor and simplify each expression:

1. 1 − 2 cos²(x) + cos⁴(x)

We can rewrite cos⁴(x) as (cos²(x))². So the expression becomes:

1 - 2 cos²(x) + (cos²(x))²

Now, we can notice that 1 - 2 cos²(x) can be factored as (1 - cos²(x)). Using the identity cos²(x) + sin²(x) = 1, we can replace 1 - cos²(x) with sin²(x):

sin²(x) + (cos²(x))²

This expression cannot be factored further.

How to simplify the expression 2 sec³(x) - 2 sec²(x) - 2 sec(x) + 2?

2. 2 sec³(x) - 2 sec²(x) - 2 sec(x) + 2

We can factor out a 2 from each term:

2(sec³(x) - sec²(x) - sec(x) + 1)

Now, we can rewrite sec³(x) as sec²(x) * sec(x):

2(sec²(x) * sec(x) - sec²(x) - sec(x) + 1)

Next, we can factor out sec²(x) from the first two terms and factor out -1 from the last two terms:

2(sec²(x)(sec(x) - 1) - (sec(x) - 1))

Notice that (sec(x) - 1) is common to both terms, so we can factor it out:

2(sec(x) - 1)(sec²(x) - 1)

Using the identity sec²(x) - 1 = tan²(x), we can simplify further:

2(sec(x) - 1)(tan²(x))

How to simplify the expression 5 sin²(x) - 14 sin(x) - 3?

3. 5 sin²(x) - 14 sin(x) - 3

We can notice that this expression is in quadratic form. Let's substitute sin(x) with a variable, let's say u:

5u² - 14u - 3

Now, we can factor this quadratic expression. It factors as:

(5u + 1)(u - 3)

Substituting back sin(x) for u:

(5sin(x) + 1)(sin(x) - 3)

Therefore, the factored form of the expression is (5sin(x) + 1)(sin(x) - 3).

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a tessellation is an array of repeating shapes that have what characteristics

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A tessellation is an array of repeating shapes that have the characteristic of having no gaps or overlaps between them. A tessellation is a pattern that is made up of one or more geometric shapes that are repeated over and over again without any gaps or overlaps.

The patterns created by tessellations are often very attractive and can be used in a variety of art and design contexts. A tessellation can be created using a variety of geometric shapes, including squares, rectangles, triangles, and hexagons. The basic idea is to take a shape and repeat it over and over again in a pattern so that the edges of each shape meet up perfectly with the edges of the other shapes in the pattern.A tessellation can be regular or irregular. In a regular tessellation, the repeating shapes are all congruent and fit together perfectly, like pieces of a puzzle. In an irregular tessellation, the shapes are not all congruent and do not fit together perfectly, although they may still form a pleasing pattern.

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e 6xy dv, where e lies under the plane z = 1 x y and above the region in the xy-plane bounded by the curves y = x , y = 0, and x = 1

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The problem involves evaluating the integral of 6xy over a specific region in three-dimensional space. The region lies beneath the plane z = 1 and is bounded by the curves y = x, y = 0, and x = 1 in the xy-plane.

To solve this problem, we need to integrate the function 6xy over the given region. The region is defined by the plane z = 1 above it and the boundaries in the xy-plane: y = x, y = 0, and x = 1.

First, let's determine the limits of integration. Since y = x and y = 0 are two of the boundaries, the limits of y will be from 0 to x. The limit of x will be from 0 to 1.

Now, we can set up the integral:

∫∫∫_R 6xy dv,

where R represents the region in three-dimensional space.

To evaluate the integral, we integrate with respect to z first since the region is bounded by the plane z = 1. The limits of z will be from 0 to 1.

Next, we integrate with respect to y, with limits from 0 to x.

Finally, we integrate with respect to x, with limits from 0 to 1.

By evaluating the integral, we can find the numerical value of the expression 6xy over the given region.

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5. Given Z₁ = 6(cos 26° + i sin 26°) and z₂ = 3 (cos 12° + i sin 12°), find each of the following. Leave your answers in polar form. a) Z₁ Z₂ Z1 b) 21 22

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$\frac{Z_1}{Z_2}$ is $2(\cos14° + i\sin14°)$ in polar form.

a) $Z_1Z_2$:

Since Z1 and Z2 are both in polar form, they can be multiplied by multiplying the magnitudes and adding the angles:

$Z_1 Z_2 = 6(\cos26° + i\sin26°) \cdot 3(\cos12° + i\sin12°)\\ = 18 (\cos 38° + i \sin 38°)$

Hence, $Z_1Z_2$ is $18 (\cos 38° + i \sin 38°)$ in polar form.

b) $\frac{Z_1}{Z_2}$:$\frac{Z_1}{Z_2}=\frac{6(\cos26° + i\sin26°)}{3(\cos12° + i\sin12°)}\\=2(\cos14° + i\sin14°)$

Therefore, $\frac{Z_1}{Z_2}$ is $2(\cos14° + i\sin14°)$ in polar form.

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Use the Integral Test to determine whether the series is convergent or divergent. ∑ n=1 [infinity] ​ (4n+1) 3 1 ​ Evaluate the following integral ∫ 1 [infinity] ​ (4x+1) 3 1 ​ dx Since the integral finite, the series is

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The series ∑ n=1 [infinity] [tex](4n+1)^3[/tex]/ n is convergent because the integral ∫ 1 [infinity] [tex](4n+1)^3[/tex] / x dx is finite.

Does the series converge or diverge?

To determine the convergence or divergence of the series ∑ n=1 [infinity] [tex](4n+1)^3[/tex] / n, we can use the Integral Test. The Integral Test states that if a function f(x) is positive, continuous, and decreasing for x ≥ 1, and if the series ∑ n=1 [infinity] f(n) converges or diverges, then the improper integral ∫ 1 [infinity] f(x) dx also converges or diverges accordingly

In this case, the function f(x) =[tex](4x+1)[/tex]^3 / x satisfies the conditions of the Integral Test. Let's evaluate the integral: ∫ 1 [infinity] [tex](4x+1)^3[/tex] / x dx.

Applying the power rule and integrating term by term, we get:

∫ 1 [infinity][tex](4x+1)^3[/tex] / x dx = ∫ 1 [infinity] (64[tex]x^2[/tex] + 48x + 12 + 1/x) dx

Evaluating each term separately, we have:

= [64/[tex]3x^3[/tex] + 24[tex]x^2[/tex] + 12x + ln|x|] evaluated from 1 to infinity

As x approaches infinity, all the terms except ln|x| become infinitely large. However, the natural logarithm term, ln|x|, grows very slowly and tends to infinity at a much slower rate. Thus, the integral is finite.

Since the integral is finite, the series ∑ n=1 [infinity][tex](4n+1)^3[/tex] / n converges.

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Let X a no negative random variable, prove that P(X ≥ a) ≤ E[X] a for a > 0

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Answer:

To prove the inequality P(X ≥ a) ≤ E[X] / a for a > 0, where X is a non-negative random variable, we can use Markov's inequality.

Markov's inequality states that for any non-negative random variable Y and any constant c > 0, we have P(Y ≥ c) ≤ E[Y] / c.

Let's apply Markov's inequality to the random variable X - a, where a > 0:

P(X - a ≥ 0) ≤ E[X - a] / 0

Simplifying the expression:

P(X ≥ a) ≤ E[X - a] / a

Since X is a non-negative random variable, E[X - a] = E[X] - a (the expectation of a constant is equal to the constant itself).

Substituting this into the inequality:

P(X ≥ a) ≤ (E[X] - a) / a

Rearranging the terms:

P(X ≥ a) ≤ E[X] / a - 1

Adding 1 to both sides of the inequality:

P(X ≥ a) + 1 ≤ E[X] / a

Since the probability cannot exceed 1:

P(X ≥ a) ≤ E[X] / a

Therefore, we have proved that P(X ≥ a) ≤ E[X] / a for a > 0, based on Markov's inequality.

Two telephone calls come into a switchboard at random times in a fixed one-hour period. Assume that the calls are made independently of one another. What is the probability that the calls are made a in the first half hour? b within five minutes of each other? Find an example of the problem above through a web search of a similar problem, and explain why the example you chose uses independent random variables.

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a.  The probability that they both arrive in the first half-hour period is (1/4) * (1/4) = 1/16.The probability that both calls are made in the first half-hour period is 1/4, as there are four equal half-hour intervals in a one-hour period, and the two calls are equally likely to arrive at any time during that period.

b. The probability that the two calls arrive within five minutes of each other is (1/12) * (1/12) = 1/144, as there are 12 five-minute intervals in each half-hour period, and the two calls are equally likely to arrive at any time during those intervals. Therefore, the probability that they arrive within the same five-minute interval is (1/12) * (1/12) = 1/144.

An example of the problem above can be found in the following question: "Two customers enter a store at random times between 9:00 AM and 10:00 AM. Assume that the arrivals are independent and uniformly distributed during this period. The probability that both customers arrive between 9:00 AM and 9:30 AM:-"This problem uses independent random variables because the arrival time of one customer does not affect the arrival time of the other customer. The probability of each customer arriving during a particular time interval is the same, regardless of when the other customer arrives. Therefore, the arrival times of the two customers can be treated as independent random variables.

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Marks: 6 Let x be a normally distributed random variable with a mean of 10 and a standard deviation of 3. Use the table 3 in the Appendix I, to calculate the percentage of x that lies between 11.5 and

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The required percentage is 20.08%.

We know that x is normally distributed with mean `μ = 10` and standard deviation `σ = 3`.

Now, convert the given values to a standard normal distribution with a mean of `0` and a standard deviation of `1`.Z-value for `x = 11.5` is given by;`z1 = (x1 - μ)/σ = (11.5 - 10)/3 = 0.5/3 = 0.1667`

Using Table 3 in Appendix I, the area to the left of `z1 = 0.1667` is `0.5675`.Z-value for `x = ?` is given by;`z2 = (x2 - μ)/σ``(x2 - 10)/3 = z1 + A``(x2 - 10)/3 = 0.1667 + 0.5675``(x2 - 10)/3 = 0.7342``x2 - 10 = 2.2026``x2 = 12.2026`

Z-value for `x = 12.2026` is given by;`z3 = (x3 - μ)/σ = (12.2026 - 10)/3 = 0.7342`

Using Table 3 in Appendix I, the area to the left of `z3 = 0.7342` is `0.7683`.

Therefore, the percentage of `x` that lies between `11.5` and `12.2026` is given by;` percentage = (0.7683 - 0.5675) * 100``percentage = 20.08%`

Hence, the required percentage is 20.08%.

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FINANCIAL MATHEMATICS 1.1 Give one example of each of the following terms: 1.1.1 Short-term investment 1.1.2 Medium-term investment 1.1.3 Long-term investment 1.1.4 Fixed income (1) (1) 1.1.5 Fixed expense 1.2 Tshepiso buys a laptop priced at R13 495. She takes out a 12-month hire purchase agreement .She pays a deposit of 20% and the interest charged on the balance is 15% per annum simple interest.

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1.1.1 Short-term investment: An example of a short-term investment is investing in a 3-month Treasury bill. These are government-issued debt securities with a maturity of less than one year, providing a relatively low-risk investment option with a fixed interest rate.

1.1.2 Medium-term investment: A medium-term investment example is investing in a corporate bond with a maturity of 5 years. Corporate bonds offer a higher yield compared to government bonds, making them suitable for investors with a moderate risk appetite seeking stable income over a longer time horizon.

1.1.3 Long-term investment: An example of a long-term investment is investing in a diversified stock portfolio. Stocks represent ownership in a company and have the potential for higher returns over an extended period, although they also involve higher risk.

1.1.4 Fixed income: An example of a fixed income investment is purchasing a 10-year government bond. These bonds pay a fixed interest rate over the bond's duration, providing a predictable stream of income for the investor.

1.1.5 Fixed expense: A fixed expense example is paying a monthly mortgage payment. The mortgage payment remains constant throughout the loan term, typically spanning several years, and includes both the principal repayment and the interest charged by the lender.

1.1.1 Short-term investment: A short-term investment option is the 3-month Treasury bill. Treasury bills are considered low-risk investments issued by the government, and they offer a fixed interest rate that is determined through an auction process. Investors can purchase Treasury bills directly from the government or through a broker.

1.1.2 Medium-term investment: A medium-term investment example is investing in a corporate bond with a 5-year maturity. Corporate bonds are issued by companies to raise funds, and they pay a fixed interest rate to bondholders over the bond's duration. The bond's yield and risk profile depend on the creditworthiness of the issuing company.

1.1.3 Long-term investment: An example of a long-term investment is investing in a diversified stock portfolio. A diversified portfolio consists of a mix of stocks from different sectors and regions, spreading the risk across multiple companies. The goal is to achieve long-term capital appreciation and potentially earn dividends from the stocks held in the portfolio.

1.1.4 Fixed income: An example of a fixed income investment is purchasing a 10-year government bond. Government bonds are issued by national governments to finance their operations. The bond's interest rate is fixed at the time of issuance, and the investor receives periodic interest payments until the bond reaches maturity, at which point the principal amount is returned.

1.1.5 Fixed expense: A fixed expense example is paying a monthly mortgage payment. When purchasing a property with a mortgage loan, the borrower agrees to make fixed monthly payments that include both the principal repayment and the interest charged by the lender. The monthly payment amount remains constant throughout the mortgage term, typically ranging from 15 to 30 years.

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what is the probability that a randomly selected student is interested in a spinning room and that they are a graduate student?

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The probability that a randomly chosen student is interested in a spinning room and is a graduate student is 0.15.

The probability that a randomly chosen student is interested in a spinning room and is a graduate student can be calculated using the joint probability formula. We have the following information: P(S) is the probability that a randomly chosen student is interested in a spinning room, and P(G) is the probability that a randomly chosen student is a graduate student. P(S) = 0.25 (given)P(G) = 0.6 (given)

The probability that a randomly chosen student is interested in a spinning room and is a graduate student can be calculated using the formula: P(S ∩ G) = P(S) x P(G)P(S ∩ G) = 0.25 x 0.6P(S ∩ G) = 0.15

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The accompanying table describes probabilities for the California Daily 4 lottery. The player selects four digits with repetition allowed, and the random variable x is the number of digits that match those in the same order that they are drawn (for a "straight bet). Use the range rule of thumb to determine whether 4 matches is a significantly high number of matches. Select the correct choice below and, if necessary, fill in the answer box within your choice or less. Since 4 is greater than this value, 4 matches is not a significantly high number of matches or more. Since 4 is at least as high as this value, 4 matches is a significantly high number of matches OA. Significantly high numbers of matches are (Round to one decimal place as needed.) OB. Significantly high numbers of matches are (Round to one decimal place as needed.) OC. Significantly high numbers of matches are (Round to one decimal place as needed.) OD. Significantly high numbers of matches are (Round to one decimal place as needed.) OE. Not enough information is given. or more. Since 4 is less than this value, 4 matches is not a significantly high number of matches or less. Since 4 is at least as low as this value, 4 matches is a significantly high number of matches. 1 I-lalalalal 1

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The accompanying table describes probabilities for the California Daily 4 lottery. The player selects four digits with repetition allowed, and the random variable x is the number of digits that match those in the same order that they are drawn (for a "straight bet). Since 4 is less than this value, 4 matches is not a significantly high number of matches. Significantly high numbers of matches are (Round to one decimal place as needed.) Not applicable.

Use the range rule of thumb to determine whether 4 matches is a significantly high number of matches:

Given probabilities for the California Daily 4 lottery are:

P (0 matches) = 256/256 = 1.00

P (1 match) = 0/256 = 0.00

P (2 matches) = 0/256 = 0.00

P (3 matches) = 0/256 = 0.00

P (4 matches) = 1/256 ≈ 0.004

Therefore, the probability of having 4 matches is ≈ 0.004.Since there are only five possible values (0, 1, 2, 3, 4) for the random variable x and since the table shows that P(x) = 0 for all values except 0 and 4, then the mean and median for the distribution are both (0 + 4)/2 = 2.

For the given probabilities,

we have,

σ = √(Σ(x - μ)²P(x))

  = √(2²(1 - 0)² + 2²(0 - 1)²)

  = √8 ≈ 2.83, and therefore the range rule of thumb gives a ballpark estimate of range ≈ 2 × 2.83 = 5.66 (or rounded to 6).

Thus, a number of matches that is higher than 2 standard deviations from the mean would be considered significantly high. 2 standard deviations above the mean is 2 + 2(2.83) ≈ 7.66. Since 4 matches is less than this value, 4 matches is not a significantly high number of matches.

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Determine whether the sequence is convergent or divergent. If it is convergent, find the limit. (If the quantity diverges, enter DIVERGES.) limn→[infinity]​an​=n3+3n​n2​ [-/1 Points] SBIOCALC1 2.1.023. Determine whether the sequence is convergent or divergent. If it is convergent, find the limit. (If the quantity diverges, enter DIVERGES.) an​=ln(2n2+5)−ln(n2+5)

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The first sequence, an = ([tex]n^3[/tex] + 3n) / [tex]n^2[/tex], is convergent, and the limit is 4. The second sequence, an = ln(2[tex]n^2[/tex] + 5) - ln([tex]n^2[/tex] + 5), is also convergent, but the limit cannot be determined without additional information.

For the first sequence, we can simplify the expression by dividing each term by [tex]n^2[/tex]: an = ([tex]n^3[/tex] + 3n) / [tex]n^2[/tex] = n + 3/n. As n approaches infinity, the term 3/n becomes negligible compared to n, so the sequence approaches the limit of n. Therefore, the sequence is convergent, and the limit is 4.

For the second sequence, an = ln(2[tex]n^2[/tex] + 5) - ln([tex]n^2[/tex] + 5), we need additional information to determine the limit. Without knowing the behavior of the numerator and denominator as n approaches infinity, we cannot simplify the expression or determine the limit. Therefore, the convergence and limit of the sequence cannot be determined with the given information.

In conclusion, the first sequence is convergent with a limit of 4, while the convergence and limit of the second sequence cannot be determined without additional information.

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Iron Man wants to invest $1000 into a bank account to make some money. The Wolf Bank offers to add an interest of $268.40 each year your money is invested in their bank. At the Golden Lion Bank, you receive 20% interest on all of the money in your account compounded annually (i.e. each year).

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It would be more beneficial for Iron Man to choose the Golden Lion Bank to maximize his returns on the $1000 investment.

If Iron Man wants to invest $1000, he has two options: the Wolf Bank and the Golden Lion Bank. Let's compare the two options:

Wolf Bank:

The Wolf Bank offers an interest of $268.40 each year. If Iron Man invests $1000, he will receive an additional $268.40 each year. The total amount in his account after one year would be $1000 + $268.40 = $1268.40.

Golden Lion Bank:

At the Golden Lion Bank, Iron Man will receive 20% interest on all of the money in his account compounded annually. After one year, the amount in his account would be $1000 + ($1000 * 0.2) = $1200.

Comparing the two options, Iron Man would have more money in his account after one year if he chooses the Golden Lion Bank. The interest rate of 20% compounded annually is higher than the fixed interest rate offered by the Wolf Bank.

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what is the 7th term of the geometric sequence where a1 = 625 and a2 = −125? (1 point) −0.2 0.2 −0.04 0.04

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According to the statement the 7th term of the geometric sequence with first term 625 and common ratio -1/5 is 0.04.

The geometric sequence given by a₁ = 625 and a₂ = -125 will be given by the formula:an = a₁rⁿ⁻¹ where r is the common ratio. To find r, we can use the formula for the common ratio: r = a₂ / a₁. Thus, r = (-125) / 625 = -1 / 5.Hence, the formula of the sequence is an = 625 (-1 / 5)ⁿ⁻¹.To find the 7th term of this sequence, we can substitute n = 7 into the formula above: a₇ = 625 (-1 / 5)⁷⁻¹. In mathematics, a sequence is a series of numbers or other things in which each item is referred to as a term.

A geometric sequence is a sequence in which each term is obtained by multiplying the previous term by a fixed constant. The formula for the nth term of a geometric sequence is an = a₁rⁿ⁻¹, where a₁ is the first term, r is the common ratio, and n is the number of the term.

The problem provides us with the first two terms of the geometric sequence, a₁ = 625 and a₂ = -125. To find the common ratio, we can use the formula: r = a₂ / a₁. In this case, r = (-125) / 625 = -1 / 5.Using the formula an = a₁rⁿ⁻¹, we can find any term in the sequence. In this case, we want to find the 7th term, so we plug in n = 7 into the formula:an = 625 (-1 / 5)⁷⁻¹ = 625 (-1 / 5)⁶ = 0.04.

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A statistician wishing to test a hypothesis that students score at most 75% on the final exam in an introductory statistics course decides to randomly select 20 students in the class and have them take the exam early. The average score of the 20 students on the exam was 72% and the standard deviation in the population is known to be o 15%. The statistician calculates the test statistic to be-0.8944. If the statistician chose to do a two-sided alternative, the P-value would be calculated by a. finding the area to the left of -8944 and doubling it. b. finding the area to the left of-.8944. c. finding the area to the right of -8944 and doubling it. d. finding the area to the right of the absolute value of -.8944 and dividing it by two.

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The P-value is (d) 0.0964.

The statistician wishes to test a hypothesis that students score at most 75% on the final exam in an introductory statistics course and randomly selects 20 students in the class and has them take the exam early.

The average score of the 20 students on the exam was 72%, and the standard deviation in the population is known to be o 15%.

If the statistician chose to do a two-sided alternative, the P-value would be calculated by finding the area to the right of the absolute value of -.8944 and dividing it by two.

There are two types of alternative hypotheses: the one-sided alternative hypothesis and the two-sided alternative hypothesis.

The one-sided alternative hypothesis predicts that the population parameter will be either greater than or less than the hypothesized value.

The two-sided alternative hypothesis predicts that the population parameter will be different from the hypothesized value.

The null hypothesis is that µ ≤ 75% and the alternative hypothesis is that µ > 75%.The test statistic is calculated as:

t = \frac{{\bar x - {\mu _0}}}{{\sigma /\sqrt n }}=\frac{{72 - 75}}{{15/\sqrt{20}}}=-0.8944

This is a left-tailed test since the alternative hypothesis is µ < 75%.To find the P-value for the test, we need to use a t-distribution table.

With degrees of freedom (df) equal to n - 1 = 20 - 1 = 19, the P-value for the test is 0.1927.

Since the alternative hypothesis is a two-sided alternative hypothesis, we need to divide the P-value by two to get the area to the right of the absolute value of -0.8944.

Therefore, the P-value is (d) 0.0964.

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a right isosceles triangle has a hypotenuse of 8 inches. What is the length of each leg?

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In a right isosceles triangle with a hypotenuse of 8 inches, each leg has a length of approximately 5.66 inches.

In a right isosceles triangle, the two legs are congruent, meaning they have the same length. Let's assume the length of each leg is represented by 'x'. According to the Pythagorean theorem, the square of the hypotenuse is equal to the sum of the squares of the legs. In this case, we have:

[tex]x^2 + x^2 = 8^2[/tex]

Simplifying the equation:

[tex]2x^2 = 64[/tex]

Dividing both sides by 2:

[tex]x^2 = 32[/tex]

Taking the square root of both sides:

x ≈ √32 ≈ 5.66

Therefore, each leg of the right isosceles triangle has a length of approximately 5.66 inches.

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62 write the equation of the parabola that has its x‑intercepts at (5, 0) and (−6, 0) and its y‑intercept at (0, −1).

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The equation of the parabola is y = -0.0285714x^2 + 0.257143x - 1.

To find the equation of a parabola, we need to start by determining its general form, which is given by y = ax^2 + bx + c, where a, b, and c are constants.

Step 1: Finding the value of 'a':

Since the parabola has its x-intercepts at (5, 0) and (-6, 0), we know that when x = 5 and x = -6, the corresponding y-values are both zero. Plugging these values into the general form equation, we get two equations:

0 = a(5)^2 + b(5) + c

0 = a(-6)^2 + b(-6) + c

Simplifying these equations, we get:

25a + 5b + c = 0   ----(1)

36a - 6b + c = 0   ----(2)

Step 2: Finding the value of 'c':

We know that the y-intercept of the parabola is at (0, -1). Plugging these values into the general form equation, we get:

-1 = a(0)^2 + b(0) + c

-1 = c

Step 3: Solving for 'b':

Substituting the value of c = -1 into equations (1) and (2), we get:

25a + 5b - 1 = 0

36a - 6b - 1 = 0

Solving these equations simultaneously, we find:

a ≈ -0.0285714

b ≈ 0.257143

Therefore, the equation of the parabola is:

y = -0.0285714x^2 + 0.257143x - 1.

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Suppose you are spending 3% as much on the countermeasures to prevent theft as the reported expected cost of the theft themselves. That you are presumably preventing, by spending $3 for every $100 of total risk. The CEO wants this percent spending to be only 2% next year (i.e. spend 2% as much on security as the cost of the thefts if they were not prevented). You predict there will be 250% as much cost in thefts (if successful, i.e. risk will increase by 150% of current value) next year due to increasing thefts.Should your budget grow or shrink?By how much?If you have 20 loss prevention employees right now, how many should you hire or furlough? Find the area of the surface. The part of the plane z=6+5x+2y that lies above the rectangle [0,5] x [1,6] Suppose that the natural rate of unemployment during the Great Depression and the Great Recession was 5%.1. During the worst part of the Great Depression, cyclical unemployment was equal to _____%A. 26B. 21C. 10D. 52. During the worst part of the Great Recession, cyclical unemployment was equal to _____ %A. 26B. 21C. 10D. 5(Part 2) Another indication of how severe the Great Depression was compared to the Great Recession is the number of years it took until the economy returned to prerecession GDP. It took ______ more years for the economy to recover from the Great Depression compared to the Great Recession.A. 2B. 3C. 7D. 10 In the country of Greenlandia the public holds $10 billion in currency but most transactions areelectronic. Bank reserves equal $50 billion. The central bank is increasing the reserverequirement from 10 to 15 percent and they want to avoid any chance in the money supply. Byhow much must the central bank increase bank reserves to keep the money supply the same? Inpractice, how can the central bank increase the amount of bank reserves? economists believe that the best way to stimulate investment in physical capital is to encourage: ind an equation for the line that is tangent to the curve y=x2-x at the point (1,0). The equation of the tangent line is y=-(Type an expression using x as the variable.) 3. Which term do you think would best apply to the different statements below? Defend your answers. a) Dust collecting on a window sill. b) A car is demolished when hit by a train. c) Bread is put in an oven and toasted. d) Legos are fastened together to build a model. e) water in a pond is frozen during the winter. f) Wax melts around the flame of a candle. g) Two sugar cubes are dissolved into a cup of coffee. The value of equilibrium constant of a reaction depends upon the initial values of concentration of reactants.If true enter 1, else enter 0. the first racially motivated policy of nazi germany was their law regarding: when you are (dehydrated/fully hydrated), your kidneys will signal your brain to (increase/decrease) secretion of (a hormone). (d) Comment on the welfare effects of the export tax and the trade ban on the UK and Russia, and the impact of these economic sanctions. [20 marks](d) Comment on the welfare effects of the export ta the structure design that work the most with environmental changes and faster decision making isA. Simple StructureB. Divisional StructureC. Functional StructureD. Matrix Structure ____ is a glycoprotein making up part of the influenza virion spikes that breaks down the protective mucous of the respiratory tract.