Please help I have ADD and I wasn’t paying attention

Please Help I Have ADD And I Wasnt Paying Attention

Answers

Answer 1

Ok I’ll tell you how to do it.

1. Base x Hight x length
I can’t solve it because I can’t see all the numbers.


Related Questions

In an auditorium but there are 18 seats in the first row and 25 seats in the second row. The number of seats in a row, n, continues to increase by 7 with each additional row.

Write an iterative rule, a_n, to model the sequence formed by the number of seats in each row.

Enter your answer in the box.

a_n=

Use the rule to determine which row has 102 seats

Enter your answer in the box to correctly complete the sentence.

Row (blank) has 102 seats.

Answers

An iterative rule, aₙ to model the sequence formed by the number of seats in each row is: aₙ = 7n + 11

The row that has 102 seats is: 13th row

How to find the arithmetic sequence?

The general formula to find the nth term of an arithmetic sequence is:

aₙ = a + (n - 1)d

where:

a is first term

d is common difference

n is position of term

We are given:

First row = 18 seats

Second row = 25 seats

Common difference = 7

Thus:

aₙ = 18 + (n - 1)7

aₙ = 18 + 7n - 7

aₙ = 7n + 11

The row that has 102 seats is:

102 = 7n + 11

7n = 102 - 11

7n = 91

n = 91/7

n = 13

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Hello, pls help. I can't figure out how to do this.

Answers

Using the derivative, the expression for f(x) = 8x - 16

How to find the function given the derivative?

Since the graph of the derivative of f is shown,  The domain of f is the set of all x such that 0 < x < 4. Given that f(2) = 0, write an expression for f(x) in terms of x.

To do this , we proceed as follows.

Now, the f(x) is the area under the curve of f'(x)

So, f(x) = ∫f'(x)dx

So, f'(x) = ∫₀⁴f''(x)dx

Now,  ∫₀⁴f''(x)dx = area under the curve of f'(x)

= 1/2 × 4 × 4

= 2 × 4

= 8

So, f'(x) = 8

Now, f(x) = ∫f'(x)dx

f(x) = ∫8dx

f(x) = 8x + c

Now, we have that f(2) = 0

So, substituting this into the equation, we have that

f(2) = 8x + c

0 = 8(2) + c

0 = 16 + c

c = - 16

So, substituting c into f(x), we have that

f(x) = 8x - 16

So, f(x) = 8x - 16

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5. (3 points) Last exits. Let
lij (n) = P(Xn = j, Xk≠ifor 1 the probability that the chain passes from i to j in n steps
without revisiting i. Writing
Show transcribed image text
[infinity]
Lij(s) = Σsⁿlij (n),
n=1
show that Pij(s) = Pii(s) Lij(s) if i ≠j.

Answers

The equation shows that the probability of transitioning from state i to state j, considering all possible paths, can be expressed as the product of the probability of staying in state i and the probability of transitioning from state i to state j without revisiting state i when i ≠ j is Pij(s) = Pii(s) Lij(s).

To answer your question, let's consider the terms provided: lij(n), Lij(s), and Pij(s).

Given that lij(n) represents the probability of transitioning from state i to state j in n steps without revisiting state i, Lij(s) is the sum of probabilities multiplied by s^n:

Lij(s) = Σsⁿlij(n), for n = 1 to infinity.

Now, let's relate Lij(s) to Pij(s). Pij(s) represents the probability of transitioning from state i to state j in any number of steps, considering all possible paths. When i ≠ j, we can use the fact that the chain must pass through state i without revisiting it.

We can write Pij(s) as a product of two probabilities: the probability of transitioning from state i to itself, denoted by Pii(s), and the probability of transitioning from state i to state j without revisiting i, denoted by Lij(s). Thus, for i ≠ j, we have:

Pij(s) = Pii(s) Lij(s).

This equation shows that the probability of transitioning from state i to state j, considering all possible paths, can be expressed as the product of the probability of staying in state i and the probability of transitioning from state i to state j without revisiting state i when i ≠ j.

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Jerry is the owner of the restaurant "Hungry Y." The only product Hungry Jerry sells is Jerry's burger, which is priced at $10 each. The number of Jerry's burgers sold on a day, denoted N, follows a normal distribution with mean 400 and standard deviation 50.
(a) What is the probability that the daily revenue exceeds $5,000?
It is known that the total daily cost, denoted C, follows a normal distribution with mean $1,000 and standard deviation $300. The correlation between C and N is 0.8. Let P denote the total daily profit.
(b) Express P in terms of C and N.
(c) Compute E(P).
(d) Compute Var(P).

Answers

(a) the probability that the daily revenue exceeds $5,000 is approximately 0.1587.

(b) E(P) = E(N(10 - C)) = E(10N) - E(NC) = 4000 - E(N)E(C) + Cov(N, C)

= 4000 - 400*1000 + 12000 = -120000

(c) The expected daily profit is -$120,000.

(d) the variance of the daily profit is $56,250,000,000.

What is probability?

Probability is a measure of the likelihood of an event occurring. It is expressed as a number between 0 and 1, where 0 indicates that the event is impossible and 1 indicates that the event is certain.

(a) Let X be the daily revenue. Then X = 10N, and we have:

E(X) = E(10N) = 10E(N) = 10(400) = 4000

[tex]Var(X) = Var(10N) = 10^2Var(N) = 10^2(50^2) = 25000[/tex]

Using the standardization formula, we have:

[tex]P(X > 5000) = P(Z > (5000-4000)/\sqrt(25000)) = P(Z > 1)[/tex]

Using a standard normal table or calculator, we find P(Z > 1) = 0.1587.

Therefore, the probability that the daily revenue exceeds $5,000 is approximately 0.1587.

(b) The total daily profit is given by:

P = N(10 - C)

Using the formula for the covariance between N and C, we have:

Cov(N, C) = rhosigma(N)sigma(C) = 0.850300 = 12000

Then we have:

E(P) = E(N(10 - C)) = E(10N) - E(NC) = 4000 - E(N)E(C) + Cov(N, C)

= 4000 - 400*1000 + 12000 = -120000

(c) The expected daily profit is -$120,000.

(d) To compute the variance of P, we use the formula:

Var(P) = Var(N(10 - C)) = 100Var(N)Var(10 - C) + 210Cov(N, 10 - C) + Var(10 - C)Var(N)

We have already computed Var(N) and Cov(N, 10 - C) in part (a) and (b). Also, we have:

Var(10 - C) = Var(10) + Var(C) - 2Cov(10, C) = 0 + 300^2 - 2(0) = 90000

Plugging in the values, we get:

Var(P) = 100(25000)(90000) + 2(10)(12000) + 90000(25000)

= 56250000000

Therefore, the variance of the daily profit is $56,250,000,000.

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Nearpod
Bolin is taking classes to learn tai chi, a Chinese martial art. The constant of
proportionality between the cost of the classes and the number of classes is 16. What is
the unit rate, in dollars per class, for Bolin's tai chi classes? Use the drop-down menus to
explain your answer.
Click the arrows to choose an answer from each menu.
The constant of proportionality Choose...
relationship. The unit rate for Bolin's tai chi classes is Choose...
Y
equal to the unit rate in a proportional

Answers

The constant of proportionality is equal to the unit rate in a proportional relationship. The unit rate for Bolin's tai chi classes is 16.

What is a proportional relationship?

In Mathematics and Geometry, a proportional relationship refers to a type of relationship that produces equivalent ratios or unit rates, and it can be modeled or represented by the following mathematical equation:

y = kx

Where:

y represents the number of classes​.x represents the cost of the classes.k is the constant of proportionality.

What is the unit rate?

In Mathematics, the unit rate is sometimes referred to as unit price or unit ratio and it can be defined as the price that is being charged by a seller for the sale of a single unit of product or quantity, especially in a proportional relationship:

Constant of proportionality, k = y/x

Constant of proportionality, k = 16.

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Let a(n) be a sequence defined recursively as follows: a(0) .1 a(1) = 1 a{n+2) = a(n+1) - an) Find a(26)

Answers

If a(n) is a sequence defined recursively as follows: a(0) .1 a(1) = 1 a{n+2) = a(n+1) - a(n) then, a(26) is approximately equal to -1.8586.

To find a(26), we need to use the recursive definition of the sequence and work our way up from a(0) and a(1).

a(0) is given as 0.1, and a(1) is given as 1.

Now, we can use the recursive formula:

a(n+2) = a(n+1) - a(n)

to find the next term in the sequence.

a(2) = a(1) - a(0) = 1 - 0.1 = 0.9

a(3) = a(2) - a(1) = 0.9 - 1 = -0.1

a(4) = a(3) - a(2) = -0.1 - 0.9 = -1

a(5) = a(4) - a(3) = -1 - (-0.1) = -0.9

And so on. We can continue this process until we find a(26).

a(26) = a(25) - a(24) = -1.8586

Therefore, a(26) is approximately equal to -1.8586.

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Here are two shapes, Q and R. Q of a circle, radius 10 cm 1 Not drawn accurately R of a circle, radius 15 cm 1/3 of How many times bigger is the area of R than the area of Q? You must show your working. Show your working Answ Total marks​

Answers

Using the given information, the area of R is 6 times bigger than the area of Q

Calculating the area of a circle

From the question, we are to determine how many times bigger the area of R is than the area of Q

From the given information,

Q is 1/4 of a circle of radius 10 cm

The area of a circle is given by the formula,

Area = πr²

Where r is the radius

Thus,

Area of Q = 1/4 πr²

Area of Q = 1/4 × π × (10)²

Area of Q = 1/4 × π × 100

Area of Q = 25π cm²

Also,

From the given information,

R is the 2/3 of a circle of radius 15cm

Thus,

Area of R = 2/3 πr²

Area of R = 2/3 × π × (15)²

Area of R = 2/3 × π × 225

Area of R = 450/3 π cm²

Area of R = 150 π cm²

To determine how many times bigger the area of R is than the area of Q, we will divide the area of R by the area of Q

That is,

150 π cm² /  25π cm²

= 6

Hence,

Area R is 6 times bigger than area Q

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suppose a sample of 211 tankers is drawn. of these ships, 146 did not have spills. using the data, construct the 80% confidence interval for the population proportion of oil tankers that have spills each month. round your answers to three decimal places.

Answers

We can use the sample proportion of tankers without spills (146/211 = 0.692) to estimate the population proportion of tankers without spills. To construct the confidence interval, we need to find the margin of error and the critical value for an 80% confidence level.

Follow these steps:

1. Calculate the sample proportion:
In the sample of 211 tankers, 146 did not have spills, so 211 - 146 = 65 tankers had spills. The sample proportion (p-hat) is the number of tankers with spills divided by the total sample size:
p-hat = 65/211 ≈ 0.308

2. Determine the z-score for an 80% confidence interval:
Using a z-table or calculator, the z-score for an 80% confidence interval is approximately 1.282.

3. Calculate the standard error:
The standard error (SE) can be calculated using the formula: SE = sqrt(p-hat*(1-p-hat)/n)
SE = sqrt(0.308*(1-0.308)/211) ≈ 0.030

4. Construct the confidence interval:
Lower limit = p-hat - (z-score * SE)
Upper limit = p-hat + (z-score * SE)

Lower limit = 0.308 - (1.282 * 0.030) ≈ 0.277
Upper limit = 0.308 + (1.282 * 0.030) ≈ 0.339

So, the 80% confidence interval for the population proportion of oil tankers that have spills each month is approximately (0.277, 0.339), rounded to three decimal places.

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Please help me answer the question

Answers

Answer:

54734431

Step-by-step explanation:

54734431

Which is the area of the rectangle?

A rectangle of length 150 and width 93. Inside the rectangle, there is one segment from one opposite angle of base to the base. The length of that segment is 155.

Answers

The area of the rectangle is 13, 950 square unit.

We have,

length = 150

width= 93

So, Area of rectangle

=  length x width

= 150 x 93

= 13950 square unit.

Thus, the required Area is 13, 950 square unit.

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A team of swimmers is training for a swim meet. The table shows the number of laps each person has swum so far and how long the laps took. Name Laps Time (minutes)
Jonathan 2 4
Julian 1 1
Seth 3 6
Bennett 7 21
Taylor 4 7

The relationship between time and the number of laps is not proportional across all swimmers. Which two swimmers swam at the same rate (had time and laps in the same proportion)?

Answers

Jonathan and Seth both had a time per lap of 2 minutes, which means they swam at the same rate.

To determine who swam at the same rate, we need to calculate the time per lap for each swimmer. This can be done by dividing the time by the number of laps.

Jonathan: 4 ÷ 2 = 2 minutes per lap

Julian: 1 ÷ 1 = 1 minute per lap

Seth: 6 ÷ 3 = 2 minutes per lap

Bennett: 21 ÷ 7 = 3 minutes per lap

Taylor: 7 ÷ 4 = 1.75 minutes per lap

From the calculations, we can see that Jonathan and Seth both had a time per lap of 2 minutes, which means they swam at the same rate.

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Seven playing cards are drawn from a deck without replacement. A success is recorded each time a card that shows a diamond is drawn. Check all that apply. 1. The outcome of each trial is independent of those of other trials. 2. There is a fixed number of n trials. 3. The probability of each possible outcome in any trial is the same from trial to trial. 4. Each trial has only two possible (mutually exclusive) outcomes. This example _________ a binomial experiment.

Answers

This example does not qualify as a binomial experiment because the conditions of a binomial experiment are not all met.

While there are only two possible outcomes (drawing a diamond or not), the other conditions are not satisfied. Specifically, the outcome of each trial is not independent of those of other trials because cards are drawn without replacement, and there is not a fixed number of n trials as the number of trials depends on how many cards are drawn until seven diamonds are obtained. Additionally, the probability of each possible outcome in any trial is not the same from trial to trial because the number of cards in the deck changes as cards are drawn.

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Evaluate every equation given. Answers must be in RECTANGULAR FORM. 4. D = (-5+5i](2+2i) 5. E = [tan(1- i)[cot(1+i)] -

Answers

E = tan(2) cosh(2) / sinh(2) + i cos(2) / sinh(2) in rectangular form.

We have:

D = (-5+5i)(2+2i)

= -10 - 10i + 10i - 10i^2

= -10 - 10i + 10 + 10i (since i^2 = -1)

= 0

Therefore, D = 0 + 0i in rectangular form.

We have:

E = tan(1- i) cot(1+i)

= (sin(1-i)/cos(1-i)) (cos(1+i)/sin(1+i))

= (sin(1)cos(i) - cos(1)sin(i)) / (cos(1)cos(i) + sin(1)sin(i)) * (cos(1)cos(i) - sin(1)sin(i)) / (sin(1)cos(i) + cos(1)sin(i))

= (sin(1) cosh(1) - i cos(1) sinh(1)) / (cos(1) cosh(1) + i sin(1) sinh(1)) * (cos(1) cosh(1) + i sin(1) sinh(1)) / (sin(1) cosh(1) - i cos(1) sinh(1)) (using hyperbolic identities)

= [(sin(1) cosh(1))^2 + (cos(1) sinh(1))^2] / [(sin(1) cosh(1))^2 - (cos(1) sinh(1))^2] + i [(cos(1) cosh(1) sin(1) sinh(1)) / [(sin(1) cosh(1))^2 - (cos(1) sinh(1))^2]]

= [(sin(2) sinh(2)) / (sinh(2) cos(2))] + i [(cos(2) sinh(2)) / (sinh(2) cos(2))]

= [(sin(2) / cos(2))] / [(sinh(2) / cosh(2))] + i [(cos(2) / cosh(2))] / [(sinh(2) / cosh(2))]

= tan(2) cosh(2) / sinh(2) + i cos(2) / sinh(2)

Therefore, E = tan(2) cosh(2) / sinh(2) + i cos(2) / sinh(2) in rectangular form.

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Given the word INTEGRALS, how many ways can one
a) select four letters such that all the number of vowel and consonants are equal.
(2 marks)
b) arrange all letters such that all the vowels are next to each other.
(2 marks)
c) form four letters word such that the number of consonants are more than the
number of vowels.
(3 marks)

Answers

a) There are 8 letters in the word INTEGRALS, out of which 3 are vowels (I, E, A) and 5 are consonants (N, T, G, R, L). To select 4 letters such that the number of vowels and consonants are equal, we need to choose 2 vowels and 2 consonants. The number of ways to do this is given by the combination formula:

C(3, 2) * C(5, 2) = 3 * 10 = 30 ways.

b) To arrange all the vowels (I, E, A) next to each other, we can treat them as a single block and arrange the block and the remaining consonants (N, T, G, R, L) separately. The block of vowels can be arranged among themselves in 3! = 6 ways. The 5 consonants can be arranged among themselves in 5! = 120 ways. Therefore, the total number of arrangements is:

6 * 120 = 720 ways.

c) To form a 4-letter word with more consonants than vowels from INTEGRALS, we can choose 3 consonants and 1 vowel, or 4 consonants. The number of ways to do this is given by:

C(5, 3) * C(3, 1) + C(5, 4) = 10 * 3 + 5 = 35 ways.

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Lines b and care parallel. Which pair of angles are alternate exterior angles?
OA. 27 and 28
OB. 21 and 22
OC. 23 and 26
OD. 21 and 28
SUBMIT

Answers

angle 1 and angle 8 are alternate exterior angles.

option D.

What are alternate exterior angles?

Alternate exterior angles are pairs of angles that are located on opposite sides of a transversal line intersecting two parallel lines, and their values are equal.

These angles are positioned in such a way that they are outside of the two parallel lines, but on opposite sides of the transversal.

For the given diagram, the alternate exterior angles are determined as;

angle 1 and angle 8 are alternate exterior angles.

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Which of the following is a line-symmetric figure?

A.
A rectangle with the top right corner and bottom left corner removed on a dot grid.
B.
An arrow shape on a dot grid.
C.
A shape similar to a slanted
D.
An irregular quadrilateral on a dot grid.

Answers

Answer: B, An arrow

Step-by-step explanation: The arrow can be folded down the middle longways to match up

"A system can be defined as any set of independent parts
performin a specific function or set of functions.
True
False
Variation in a system can be maxiized by standardizing
operations.
True
False"

Answers

Question consists of two statements and you want to know if they are true or false.

1. "A system can be defined as any set of independent parts performing a specific function or set of functions."

Answer: True. A system can indeed be defined as a set of independent parts that work together to perform a specific function or set of functions.

2. "Variation in a system can be maximized by standardizing operations."

Answer: False. Variation in a system is actually minimized by standardizing operations. Standardizing operations helps to reduce variability and increase consistency in a system's performance.

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Which graph represents the function f(x) = x2 + 3x + 2?

Answers

The graph of the function is given above.

The graph of the function f(x) = x + 3x + 2 is a parabola that opens upwards.

We have,

The graph of the function f(x) = x + 3x + 2 is a parabola.

The coefficient of x² is positive, so the parabola opens upwards.

To sketch the graph of the function, we can use the vertex formula.

The x-coordinate of the vertex is given by -b/2a, where a and b are the coefficients of x^2 and x, respectively.

In this case, a = 1 and b = 3, so the x-coordinate of the vertex is -3/2.

To find the y-coordinate of the vertex, we can substitute this value of x into the function to get:

f(-3/2) = (-3/2)^2 + 3(-3/2) + 2 = 1/4 - 9/2 + 2 = -15/4

So the vertex is at (-3/2, -15/4).

We can also find the y-intercept by setting x = 0:

f(0) = 0² + 3(0) + 2 = 2

So the y-intercept is at (0, 2).

Thus,

The graph of the function is given below.

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Consider a natural cubic spline model with two knots at ci and c2 given by y= Bo + B12+ B2(1 - 1) +B3(- 0) + €, where B2 + B3 = 0 and B2cı + B362 = 0. Let f(x) = Bo + B12+ B2(1-0)| + B3(- c2). Assume that C <02. Show that f(x) is a linear function whenever I 02.

Answers

To show that f(x) is a linear function whenever x <= c1 and x >= c2, we need to examine the given natural cubic spline model:

y = B0 + B1x + B2(x - c1)+ + B3(x - c2) + ε, where B2 + B3 = 0 and B2c1 + B3c2 = 0.

Let f(x) = B0 + B1x + B2(x - c1)+ + B3(x - c2). We need to consider two cases: x <= c1 and x >= c2.

Case 1: x <= c1
Since x <= c1, (x - c1)+ = 0, and (x - c2)+ = 0.
Therefore, f(x) = B0 + B1x, which is a linear function.

Case 2: x >= c2
Since x >= c2, (x - c2)+ = (x - c2).
As x >= c1, (x - c1)+ = (x - c1).
Now, f(x) = B0 + B1x + B2(x - c1) + B3(x - c2).

Using the given conditions, B2 + B3 = 0 and B2c1 + B3c2 = 0, we can express B3 as B3 = -B2, and substitute it into the second condition:

B2c1 - B2c2 = 0
B2(c1 - c2) = 0

Since c1 ≠ c2, B2 must be 0. Thus, B3 = 0 as well.

So, f(x) = B0 + B1x, which is also a linear function.

In conclusion, f(x) is a linear function whenever x <= c1 and x >= c2.

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Can someone give me the answer and explanation

Answers

Step-by-step explanation:

10 to the power of 6 is 1,000,000

10 x 10 x 10 x 10 x 10 x 10 = 1,000,000

10 to the power of 7 is 10,000,000

10 x 10 x 10 x 10 x 10 x 10 x 10 = 10,000,000

=(5 x 1,000,000)(5 x 10,000,000)

=5,000,000 x 50,000,000

= 250,000,000,000,000

You have to remember the exponent properties to do this. Hope this helps!

State the appropriate test statistic name, degrees of freedom, test statistic value, and the associated p-value (Enter your degrees of freedom as a whole number, the test statistic value to three decimal places, and the p-value to four decimal places).t(45) = ________ p= ________

Answers

Degrees of freedom (df) refers to the number of independent pieces of information that can be used to estimate a parameter. The p-value is the probability of observing a test statistic as extreme or more extreme than the one calculated from your sample data, assuming the null hypothesis is true.

However, I can still help you understand the terms and how they relate to your question.

1. Test Statistic Name: In this case, the test statistic is the t-statistic, which is used for hypothesis testing in statistics when the population standard deviation is unknown.

2. Degrees of Freedom: Degrees of freedom (df) refers to the number of independent pieces of information that can be used to estimate a parameter. In a t-test, the degrees of freedom are typically represented as "t(df)". In your example, the degrees of freedom are 45 (t(45)).

3. Test Statistic Value: This is the calculated value of the t-statistic, which you will need to compute based on the data provided. It is used to compare against the critical value or to find the p-value. You need to provide the data or information about the test to calculate this value.

4. P-value: The p-value is the probability of observing a test statistic as extreme or more extreme than the one calculated from your sample data, assuming the null hypothesis is true. You will need to compute the p-value using the t-statistic value.

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which type of associations occurs when there is a relationship between two variables, but the relationship is caused by a third variable?

Answers

The type of association you are referring to is called a spurious correlation. In a spurious correlation, there is a relationship between two variables, but the relationship is actually caused by a third variable, also known as a confounding variable. This can lead to misleading conclusions if the third variable is not taken into account.

The type of association that occurs when there is a relationship between two variables, but the relationship is caused by a third variable is called a spurious association or a confounding variable. In this case, the relationship between the two variables is not a direct causal relationship, but is instead influenced by the third variable. It is important to identify and control for confounding variables in order to accurately interpret the relationship between the two variables of interest.

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Find the inverse function in slope-intercept form (mx+b):

f(x)=-3/5x+6

Answers

The inverse function in slope-intercept form (mx+b) of function f(x) = -3/5x + 6 is -5/3x + 10.

To find the inverse of a function, we start by swapping the x and y variables. Then, we solve the equation for y.

In this case, the inverse function is g(x) = (5/3)x + 6, which is in slope-intercept form (mx+b) with m=5/3 and b=6.

Swapping x and y, we get x = -3/5y + 6.

Now, we solve for y:

x - 6 = -3/5y

-5/3(x - 6) = y

So the inverse of f(x) is:

[tex]f^{-1}[/tex](x) = -5/3(x - 6)

In slope-intercept form, this is:

[tex]f^{-1}[/tex](x) = -5/3x + 10

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What is the critical value for level of significance and table parameters in DATA? a. 22.307 b. 11.143 c. 5.991 d. 18.475 G e. None of the answers are correct. Level of Significance 0.1
Number of Rows 4
Number of Columns 6

Answers

The answer is (a) 22.307.

To determine the critical value for a chi-square distribution, we need to use a chi-square distribution table. The table has two parameters: the level of significance and the degrees of freedom. In this case, the level of significance is 0.1, which means that we want to find the critical value that separates the upper 10% of the distribution.

To find the degrees of freedom, we need to know the number of rows and columns in the contingency table. The degrees of freedom can be calculated using the formula:

(df) = (r - 1) x (c - 1)

where r is the number of rows and c is the number of columns.

In this case, the number of rows is 4 and the number of columns is 6. Using the formula, we get:

(df) = (4-1) x (6-1) = 15

Now that we know the level of significance and the degrees of freedom, we can use the chi-square distribution table to find the critical value. Looking at the table, we find the row corresponding to 15 degrees of freedom and the column corresponding to 0.1 level of significance. The intersection of this row and column gives us the critical value, which is approximately 22.307.

Therefore, the answer is (a) 22.307.

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What statistical test would perform to test your hypothesis: average time to deliver pizza, once the order is placed, is greater than 25 minutes in the population.
Z-test
T-test
No test is necessary
ANOVA

Answers

To test your hypothesis that the average time to deliver pizza, once the order is placed, is greater than 25 minutes in the population, you would perform a one-sample T-test.

1. Formulate the null hypothesis (H0) and the alternative hypothesis (H1).

In this case, H0: the average delivery time is equal to 25 minutes, and H1: the average delivery time is greater than 25 minutes.


2. Collect a sample of delivery times and calculate the sample mean and sample standard deviation.


3. Determine the appropriate T-distribution based on your sample size (degrees of freedom = sample size - 1).


4. Calculate the T-statistic using the sample mean, sample standard deviation, and sample size.


5. Determine the critical T-value based on your chosen level of significance (e.g., 0.05) and the one-tailed T-distribution.


6. Compare the calculated T-statistic to the critical T-value. If the T-statistic is greater than the critical T-value, you can reject the null hypothesis in favor of the alternative hypothesis.

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4. If (a, b) = 1, prove that (a?, b2) = 1. = =

Answers

It has been proved that if (a, b) = 1, then (a², b²) = 1.

If I understand correctly, you want to prove that if (a, b) = 1, then (a², b²) = 1.
Co-prime numbers or relatively prime numbers are those numbers that have their HCF (Highest Common Factor) as 1. In other words, two numbers are co-prime if they have no common factor other than 1.


Since (a, b) = 1, it means that a and b are coprime, which means they have no common factors other than 1. Now, let's consider their squares, a², and b².

If a² and b² had a common factor other than 1, then this factor would also be a factor of a and b, which contradicts our initial assumption that (a, b) = 1.

Therefore, (a², b²) must also be equal to 1, proving that if (a, b) = 1, then (a², b²) = 1.

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The graph of the function
is shown. What are the key features of this function?

Graph shows a sinusoidal function plotted on a coordinate plane. A curve enters quadrant 2 at (minus pi, 1), goes through (minus pi by 2, minus 0.5), (0, 1), (pi by 2, 2.5), and exits quadrant 1 (pi, 1).

The maximum value of the function is
The minimum value of the function is
On the interval (0, π/2) The graph of the function
is shown. What are the key features of this function?

Answers

The sinusoidal function has the following features:

Maximum: 2.25, Minimum: - 0.25

Behavior: Increasing, Range: [- 0.25, 2.25]

How to derive the main features of a sinusoidal function

In this problem we find the representation of a sinusoidal function, from which we must derive the following features:

Maximum value of the function.Minimum value of the function.Behavior of the function on interval (0, 0.5π).Range of the function.

The maximum value of the function is the greatest possible value of the y-value, the minimum value of the function is least possible value of the y-value.

There are two possible behaviors:

Increasing: Δx > 0, Δy < 0.Decreasing: Δx > 0, Δy > 0.

And the range of the function is the set of all y-values between maximum and minimum.

Now we proceed to determine the main features of the function by direct inspection:

Maximum value: 2.25

Minimum value: - 0.25

Behavior on the interval (0, 0.5π): Increasing

The range of the function: [- 0.25, 2.25]

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a committee of 5 members is to be selected from 6 seniors and 4 juniors. fine the number of ways in which this can be done if the committee has at least 1 junior.
a.252
b.6
c.246
d.120

Answers

A or b is the correct answer
Final answer:

The answer to the question is 'c. 246'. This is calculated by determining the total number of ways to form the committee, subtracting the ways in which only seniors can be selected to ensure at least one junior is included.

Explanation:

This question is related to combinatorics, a branch of Mathematics that deals with counting, arrangement, and permutation. Given we have 6 seniors and 4 juniors, and we need to select a committee of 5 members with at least one junior, we can approach it in the following way:

First we consider the total number of ways to form a 5-member committee without any restriction. From 10 people (6 seniors + 4 juniors), we can choose 5 in 10C5 ways, which equals 252. Next, we consider the number of ways to form a 5-member committee with only seniors. From 6 seniors, we can choose 5 in 6C5 ways, which equals 6. We subtract the number of committees that contain only seniors from the total number of committees to find the number of committees with at least one junior. Hence, 252 - 6 = 246 ways.

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What is the probability of a sample of 144 producing a mean of
50 or larger if the population has a mean of 49 and a standard
deviation of 5?

Answers

The probability of a sample of 144 producing a mean of 50 or larger if the population has a mean of 49 and a standard deviation of 5 is approximately 0.0082 or 0.82%.

To solve this problem, we can use the central limit theorem, which states that the distribution of sample means approaches a normal distribution as the sample size increases, regardless of the shape of the population distribution.

First, we need to calculate the standard error of the mean (SEM) using the formula:

unit systems of equations homework 5

Answers

Solving a system of equations necessarily necessitates the utilization of an appropriate unit system, depending on the equations to be solved.

How to explain the equation

Here are a few common unit systems employed when attempting to resolve such equations:

Metric System: This involves adhering to the International System of Units (SI), which is used across the world; in this premise, meters, kilograms, and seconds depict length, mass, and time respectively.

Imperial System: Proffered mainly in the United States, this method applies units like feet, pounds, and seconds for sizing, mass and time correspondingly.

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