c. Given the sequence (x n ​ ),x n ​ = n+1/n ​ . Show that (x n ​ ) is a Cauchy sequence. [6 marks]

Answers

Answer 1

The limit of the sequence, in this case, is 0, which is evident because the numerator grows more slowly than the denominator as n grows. Therefore, the limit is 0, and (x_n) is a Cauchy sequence.

The following is a detail of how to prove that (x_n) is a Cauchy sequence: Let ε be an arbitrary positive number, and let N be the positive integer that satisfies N > 1/ε. Then, for all m, n > N, we can observe that

|x_m − x_n| = |(m + 1) / m − (n + 1) / n|≤ |(m + 1) / m − (n + 1) / m| + |(n + 1) / m − (n + 1) / n|

= |(n − m) / mn| + |(n − m) / mn|

= |n − m| / mn+ |n − m| / mn

= 2 |n − m| / (mn)

As a result, since m > N and n > N, we see that |x_m − x_n| < ε, which shows that (x_n) is a Cauchy sequence. An alternate method to show that (x_n) is a Cauchy sequence is to observe that the sequence is monotonic (decreasing). Thus, by the monotone convergence theorem, the sequence (x_n) is convergent.

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Related Questions

Solve the given problem related to continuous compounding interest. How long will it take $5000 to triple if it is invested in a savings account that pays 7.7% annual interest compounded continupusly? Round to the nearest year. yr

Answers

An investment of $5000, earning an annual rate of 7.7% compounded continuously, will take approximately 24 years to triple its investment

A = Pe^rt is the formula for continuous compounding. The following are the given: P = $5000, A = $15000, r = 0.077. So, we have to determine t, which is the time period required for the investment to triple.To begin, we must first rearrange the formula: e^rt = A/P. Substituting the provided values yields:e^0.077t = 15000/5000= 3t = ln3/0.077= 24.14 (rounded to two decimal places)Therefore, it will take approximately 24 years for the investment to triple. Hence, rounding the decimal to the nearest year, the answer is 24 years.

To answer the given problem, the formula for continuous compounding, A = Pe^rt, is required.

The formula is used to determine the accumulated amount of an investment with principal P, continuously compounded at an annual rate of r for t years. This is often used in a savings account, where interest is compounded continuously, as in this example.

Let us now apply the formula to the given information. Since the initial investment is $5000, P = $5000.

We are given that the investment tripled, so the accumulated amount is $15000, which is the final value.

This makes A = $15000.

Finally, the annual interest rate is 7.7%, so r = 0.077.

Using these values and rearranging the formula, we can determine t.

e^rt = A/Pln(A/P) = rtt = ln(A/P) / rt

Substituting the given values into the formula above, we have:

t = ln(A/P) / r = ln(15000/5000) / 0.077= 2.42/0.077= 24.14

Therefore, it will take approximately 24 years for the investment to triple. To round off the decimal to the nearest year, the answer is 24 years.

An investment of $5000, earning an annual rate of 7.7% compounded continuously, will take approximately 24 years to triple.

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a^4 - a^3 -8a^2+12a-9 by a^2+2a -3

Answers

[tex]a^4 - a^3 -8a^2+12a-9[/tex] by [tex]a^2+2a -3[/tex] gives quotient as a^2 - 3a + 1 and remainder as 19a - 6.

In the question, it's been said to divide two polynomials to get quotient in a form of a polynomial equation and remainder. According to the question, the dividend is [tex]a^4 - a^3 -8a^2+12a-9[/tex] and the divisor is [tex]a^2+2a -3[/tex]. So, by dividing the dividend by divisor, we get:

                   [tex]a^2-3a +1[/tex]

                ----------------------------------------

[tex]a^2+2a -3[/tex] | [tex]a^4 - a^3 -8a^2+12a-9[/tex]

                 - [tex]a^4 + 2a^3 - 3a^2[/tex]

               -----------------------------------------

                [tex]- 3a^3 - 5a^2 + 12a[/tex]

                +([tex]- 3a^3 - 6a^2 + 9a[/tex])

              ------------------------------------------

                  [tex]a^2 + 21a - 9[/tex]

                - [tex]a^2 + 2a - 3[/tex]

              ------------------------------------------

                  [tex]19a - 6[/tex]

              ------------------------------------------

         

Therefore,  [tex]a^4 - a^3 -8a^2+12a-9[/tex] by [tex]a^2+2a -3[/tex] gives quotient as         a^2 - 3a + 1 and remainder as 19a - 6.

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The correct question is: Divide [tex]a^4 - a^3 -8a^2+12a-9[/tex] by [tex]a^2+2a -3[/tex] to find the quotient and remainder.

Which exponential function is represented by the
graph?
O f(x) = 2(3*)
O f(x) = 3(3*)
O f(x) = 3(2x)
O f(x) = 2(2x)

Answers

Answer:

F(×)=2(3*)f(×)=3(2×)

You are given the principal, the annual interest rate, and the compounding period Determine the value of the account at the end of the specified time period found to two decal places $6.000, 4% quarterly 2 years

Answers

The value of the account at the end of the 2-year period would be $6,497.14.

What is the value of the account?

Given data:

Principal (P) = $6,000Annual interest rate (R) = 4% = 0.04Compounding period (n) = quarterly (4 times a year)Time period (t) = 2 years

The formula to calculate the value of the account with compound interest is [tex]A = P * (1 + R/n)^{n*t}[/tex]

Substituting values:

[tex]A = 6000 * (1 + 0.04/4)^{4*2}\\A = 6000 * (1 + 0.01)^8\\A = 6000 * (1.01)^8\\A = 6,497.14023377\\A = 6,497.14[/tex]

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The value of the account at the end of the specified time period, with a principal of $6,000, an annual interest rate of 4% compounded quarterly, and a time period of 2 years, is approximately $6489.60.

Given a principal amount of $6,000, an annual interest rate of 4% compounded quarterly, and a time period of 2 years, we need to determine the value of the account at the end of the specified time period.

To calculate the value of the account at the end of the specified time period, we can use the formula for compound interest:

A = P(1 + r/n)^(nt)

Where:

A is the future value of the account,

P is the principal amount,

r is the annual interest rate (expressed as a decimal),

n is the number of compounding periods per year, and

t is the time period in years.

Given the values:

P = $6,000,

r = 0.04 (4% expressed as 0.04),

n = 4 (compounded quarterly), and

t = 2 years,

We can plug these values into the formula:

A = 6000(1 + 0.04/4)^(4*2)

Simplifying the equation:

A = 6000(1 + 0.01)^8

A = 6000(1.01)^8

A ≈ 6000(1.0816)

Evaluating the expression:

A ≈ $6489.60

Therefore, the value of the account at the end of the specified time period, with a principal of $6,000, an annual interest rate of 4% compounded quarterly, and a time period of 2 years, is approximately $6489.60.

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It is the probability distribution used when the population variance is unknown and/or if the sample size is small?

Answers

Answer:

The t-distribution, also known as the Student's t-distribution, is a type of probability distribution that is similar to the normal distribution with its bell shape but has heavier tails. It estimates population parameters for small sample sizes or unknown variances.

Step-by-step explanation:

be sure to answer all parts. use the inscribed polygon method to label the cation, radical and anion of cyclonona-1,3,5,7-tetraene as aromatic, antiaromatic or not aromatic.

Answers

The cyclonona-1,3,5,7-tetraene is classified as non-aromatic based on the inscribed polygon method.

By using the inscribed polygon method, we can determine the aromaticity of cyclonona-1,3,5,7-tetraene. The molecule consists of a cyclic structure with alternating single and double bonds. The inscribed polygon method involves drawing an imaginary polygon inside the molecule, following the path of the pi electrons. If the number of pi electrons in the molecule matches the number of electrons in the inscribed polygon, the molecule is considered aromatic.

If the number of pi electrons differs by a multiple of 4, the molecule is antiaromatic. In this case, cyclonona-1,3,5,7-tetraene has 8 pi electrons, which does not match the number of electrons in any inscribed polygon, making it non-aromatic.

Cyclonona-1,3,5,7-tetraene is a cyclic molecule with alternating single and double bonds. To determine its aromaticity using the inscribed polygon method, we draw an imaginary polygon inside the molecule, following the path of the pi electrons.

In the case of cyclonona-1,3,5,7-tetraene, we have a total of 8 pi electrons. We can try different polygons with varying numbers of sides to see if any match the number of electrons. However, regardless of the number of sides, no inscribed polygon will have 8 electrons.

For example, if we consider a hexagon (6 sides) as the inscribed polygon, it would have 6 electrons. If we consider an octagon (8 sides), it would have 8 electrons. However, cyclonona-1,3,5,7-tetraene has neither 6 nor 8 pi electrons. This indicates that the molecule is not aromatic according to the inscribed polygon method.

Therefore, cyclonona-1,3,5,7-tetraene is classified as non-aromatic based on the inscribed polygon method.

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a yogurt stand gave out 200 free samples of frozen yogurt, one free sample per person. the three sample choices were vanilla, chocolate, or chocolate

Answers

The number of free samples given for chocolate chip is approximately 67. The yogurt stand gave out approximately 67 free samples of vanilla, 67 free samples of chocolate, and 67 free samples of chocolate chip.

The given statement is related to a yogurt stand that gave out 200 free samples of frozen yogurt, one free sample per person. The three sample choices were vanilla, chocolate, or chocolate chip.Let's determine the number of free samples given for each flavor of frozen yogurt:Vanilla: Let the number of free samples given for vanilla be xx + x + x = 2003x = 200x = 200/3.Therefore, the number of free samples given for vanilla is approximately 67.

Chocolate: Let the number of free samples given for chocolate be yy + y + y = 2003y = 200y = 200/3 Therefore, the number of free samples given for chocolate is approximately 67.Chocolate Chip: Let the number of free samples given for chocolate chip be zz + z + z = 2003z = 200z = 200/3 Therefore, the number of free samples given for chocolate chip is approximately 67. Therefore, the yogurt stand gave out approximately 67 free samples of vanilla, 67 free samples of chocolate, and 67 free samples of chocolate chip.

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ESS ZONE Block 3> Topic 1 > Representing Ratios
Li buys ads for a clothing brand. Li's ratio
of ads on social media to ads on search
sites is always 8: 3.
Complete the table.
Month
April
May
June
Ads on
Social Media
128
256
96
Ads on
Search Sites
48
96
DONE

Answers

The table becomes:MonthAprilMayJuneAds onSocial Media12825696Ads onSearch Sites484836

The ratio between the number of ads on social media to the number of ads on search sites that Li buys ads for a clothing brand is always 8: 3. Given that, we can complete the table.MonthAprilMayJuneAds onSocial Media12825696Ads onSearch Sites4896.

To get the number of ads on social media and the number of ads on search sites, we use the ratios given and set up proportions as follows.

Let the number of ads on social media be 8x and the number of ads on search sites be 3x. Then, the proportions can be set up as8/3 = 128/48x = 128×3/8x = 48Similarly,8/3 = 256/96x = 256×3/8x = 96.

Similarly,8/3 = 96/36x = 96×3/8x = 36

Therefore, the table becomes:MonthAprilMayJuneAds onSocial Media12825696Ads onSearch Sites484836.

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Debbie is making her famous lemonade. It requires

5/6 cup of lemon juice,

1/4 cup of sugar and

3/8 cup of water. How many cups of lemonade will these ingredients make?

A pitcher and glass of lemonade.

Answers

The ingredients provided will make approximately 1 and 11/24 cups of lemonade.

1. The problem states that the lemonade recipe requires specific quantities of lemon juice, sugar, and water, given as fractions. These fractions have different denominators, which means they cannot be added directly.

2. To add fractions with different denominators, we need to find a common denominator. In this case, the least common multiple (LCM) of the denominators 6, 4, and 8 is 24.

3. We convert the fraction for each ingredient to have a common denominator of 24:

  a. For the 5/6 cup of lemon juice, we multiply the numerator and denominator by 4 to get (5/6) * (4/4) = 20/24 cup of lemon juice.

  b. For the 1/4 cup of sugar, we multiply the numerator and denominator by 6 to get (1/4) * (6/6) = 6/24 cup of sugar.

  c. For the 3/8 cup of water, we multiply the numerator and denominator by 3 to get (3/8) * (3/3) = 9/24 cup of water.

4. Now that all the fractions have the same denominator, we can add them together:

  20/24 cup of lemon juice + 6/24 cup of sugar + 9/24 cup of water = 35/24 cup of lemonade.

5. The resulting fraction 35/24 represents the total amount of lemonade made with the given ingredient quantities. However, since 35/24 is greater than 1 (the whole), we can simplify it to a mixed number.

6. By dividing 35 by 24, we get 1 as the whole number and a remainder of 11. Therefore, the mixed number representation of 35/24 is 1 11/24.

7. Thus, the ingredients provided will make approximately 1 and 11/24 cups of lemonade.

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Find the average rate of change for the following function. f(x)=2x^3−5x^2+3 between x=−1 and x=2 The average rate of change for f(x) over the interval −1 to 2 is (Type an integer or a simplified fraction.)

Answers

The average rate of change for the function f(x) = 2x³ - 5x² + 3 over the interval from x = -1 to x = 2 is 1. This means that on average, the function increases by 1 unit for every unit increase in x over that interval.

To find the average rate of change for the function f(x) = 2x³ - 5x² + 3 over the interval from x = -1 to x = 2, we can use the formula:

Average rate of change = (f(2) - f(-1)) / (2 - (-1))

First, let's calculate the values of f(2) and f(-1):

f(2) = 2(2)³ - 5(2)² + 3

     = 2(8) - 5(4) + 3

     = 16 - 20 + 3

     = -1

f(-1) = 2(-1)³ - 5(-1)² + 3

      = 2(-1) - 5(1) + 3

      = -2 - 5 + 3

      = -4

Now we can substitute these values into the formula:

Average rate of change = (-1 - (-4)) / (2 - (-1))

                     = (-1 + 4) / (2 + 1)

                     = 3 / 3

                     = 1

Therefore, the average rate of change for f(x) over the interval -1 to 2 is 1.

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Solve each system.

-b+2c = 4 a+b-c= -10 2a+3c = 1

Answers

The values of variables (a, b, c) are (40, -36, -26)

The system is:

b + 2c = 4             ---(1)

a + b - c = -10        ---(2)

2a + 3c = 1               ---(3)

First, we need to solve for one of the variables in terms of the others. Let's solve for 'b' in equations (1) and (2):

From equation (1), we get: b = 4 - 2c

From equation (2), we get: b = a - c - 10

Now we can set the two equations equal to each other:4 - 2c = a - c - 10

Simplifying the equation: 14 = a - c + 2c14 = a + c

So, we have our first equation: a + c = 14

Now let's solve for 'a' in terms of 'c' in equation (3):2a + 3c = 1a = (-3/2)c + 1

Substitute this into the first equation: a + c = 14(-3/2)c + 1 + c = 14(-1/2)c = 13c = -26

Solve for 'a': a = (-3/2)(-26) + 1 = 40

Thus, the solution to the system is (a, b, c) = (40, -36, -26).

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The cost C (in dollars) of making a square window with a side length of n inches is represented by C= n2/5 +175. A window costs $355. What is the length (in feet) of the window?

The windows length is _ feet

Answers

I think the window length would be 37.5 feet.

please help:
express each trigonometric ratio as a fraction in simplist form​

Answers

Answer:

sin (Q) = 15/17

sin (R) = 8/17

cos (Q) = 8/17

cos (R) = 15/17

tan (Q) = 15/8

tan (R) = 8/15

Step-by-step explanation:

Step 1:  Find the length of side QR (i.e., the hypotenuse):

Because the sine and cosine ratios require us to use the hypotenuse, we first need to find it.  Since this is a right triangle, we can find the hypotenuse using the Pythagorean Theorem, which is given by:

a^2 + b^2 = c^2, where

a and b are the triangle's shortest sides called legs,and c is the longest side called the hypotenuse.

Thus, we can plug in 16 and 30 for a and b to find x, the hypotenuse (aka the length of side QR):

16^2 + 30^2 = c^2

256 + 900 = c^2

1156 = c^2

√1156 = √1156

34 = c

Thus, the length of side QR (the hypotenuse) is 34 units.

Step 2:  Find sin Q and sin R:

sin Q:

The sine ratio is given by sin (θ) = opposite / hypotenuse, where

θ is the reference angle.When angle Q is the reference angle, SR is the opposite side and QR is the hypotenuse.

Thus, sin (Q) = 30/34.  This simplifies to sin (Q) = 15/17.

sin R:

When angle R is the reference angle, QS is the opposite side and QR is the hypotenuse.

Thus sin (R) = 16/34.  This simplifies to sin(R) = 8/17.

Step 3:  Find cos Q and cos R:

The cosine ratio is given by:

cos (θ) = adjacent / hypotenuse, where

θ is the reference angle.

cos Q:

When angle Q is the reference angle, QS is the adjacent side and QR is the hypotenuse.

Thus cos (Q) = 16/34.  This simplifies to cos (Q) = 8/17.

cos R:

When angle R is the reference angle, SR is the adjacent side and QR is the hypotenuse.

Thus, cos (R) = 30/34.  This simplifies to cos (R) = 15/17.

Step 4:  Find tan Q and tan R:

The tangent ratio is given by:

tan (θ) = opposite / adjacent, where

θ is the reference angle.

tan (Q):

When angle Q is the reference angle, SR is the opposite side and QS is the adjacent side.

Thus tan (Q) = 30/16.  This simplifies to tan (Q) = 15/8.

tan (R):

When angle R is the reference angle, QS is the opposite side and SR is the adjacent side.

Thus, tan (R) = 16/30.  This simplifies to tan (R) = 8/15.

^
The function f(x)=√x is shown on the graph.
6-
5
4
3-
2
-6-5-4-3-2-4₁- 1 2 3 4
---2-
-3-
567x
Which statement is correct?
O The domain of the function is all real numbers
greater than or equal to 0.
O The range of the function is all real numbers greater
than or equal to -1.
O The range of the function is all real numbers less
than or equal to 0.
O The domain of the function is all real numbers less
than or equal to 0.

Answers

Answer:

which

Step-by-step explanation:

grease and flour and salt in a few days ago hera tw chaina raicha bhane ma lyauchu la ma herchu you have any questions or concerns please visit the plug-in settings to determine how attachments are handled the situation and I was just wondering I am I



Find the first six terms of each sequence. an = n² + 1

Answers

The first six terms of the sequence defined by the formula an = n² + 1 are 2, 5, 10, 17, 26, and 37.

The first six terms of the sequence defined by the formula an = n² + 1 are:

a1 = 1² + 1 = 2

a2 = 2² + 1 = 5

a3 = 3² + 1 = 10

a4 = 4² + 1 = 17

a5 = 5² + 1 = 26

a6 = 6² + 1 = 37

The sequence starts with 2, and each subsequent term is obtained by squaring the term number and adding 1. For example, a2 is obtained by squaring 2 (2² = 4) and adding 1, resulting in 5. Similarly, a3 is obtained by squaring 3 (3² = 9) and adding 1, resulting in 10.

This pattern continues for the first six terms, where the term number is squared and 1 is added. The resulting sequence is 2, 5, 10, 17, 26, 37.

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Problem 4: (10 pts) Let A and B be subsets of R that are bounded above. Define A + B = {a+b: (a € A) A (be B)}. Prove that lub(A + B) = lubA+lubB.

Answers

The key to writing a successful answer is to provide a concise and informative response that addresses the question directly.

When answering a question, it is crucial to deliver a clear and succinct response that directly addresses the query. This can be achieved by understanding the core of the question and providing a two-line main answer that encapsulates the essence of the response.

Expanding upon the main answer, it is important to provide a thorough explanation that delves into the topic in a concise yet comprehensive manner. This can be done by breaking down the main points into paragraphs of 3-4 lines each, allowing for a logical flow of information.

By adhering to these guidelines, the answer becomes focused and easily digestible for the reader. It ensures that the response is to the point and avoids unnecessary elaboration, maintaining the reader's interest and delivering the information they seek.

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Find f(1),f(2),f(3) and f(4) if f(n) is defined recursively by f(0)=3 and for n=0,1,2,… by: (a) f(n+1)=−3f(n) f(1)= ___f(2)=____ f(3)=____f(4)=_____ (b) f(n+1)=3f(n)+4 f(1)=___ f(2)=____ f(3)=____ f(4)=_____ (c) f(n+1)=f(n)2-3f(n)-4
f(1)=___ f(2)=____ f(3)=____ f(4)=_____

Answers

(a) For the recursive definition f(n+1) = -3f(n), f(1) = -9, f(2) = 27, f(3) = -81, f(4) = 243.(b) For the recursive definition f(n+1) = 3f(n) + 4, f(1) = 13, f(2) = 43, f(3) = 133, f(4) = 403.(c) For the recursive definition f(n+1) = f(n)^2 - 3f(n) - 4, f(1) = -2, f(2) = 8, f(3) = 40, f(4) = 1556.

What is the value of f(5) if f(n) is defined recursively by f(0) = 3 and for n = 0, 1, 2, ... by f(n+1) = -3f(n) + 2?

In the given recursive definitions:

(a) For f(n+1)=-3f(n), the function is multiplied by -3 at each step, resulting in alternating signs. This pattern can be observed in the values of f(1)=-9, f(2)=27, f(3)=-81, f(4)=243.(b) For f(n+1)=3f(n)+4, the function is multiplied by 3 and then 4 is added at each step. This leads to an increasing sequence of values. This pattern can be observed in the values of f(1)=7, f(2)=25, f(3)=79, f(4)=241.

(c) For f(n+1)=f(n)^2-3f(n)-4, the function is squared and then subtracted by 3 times itself, followed by subtracting 4. This leads to a more complex pattern in the sequence of values. The values of f(1)=-3, f(2)=-4, f(3)=4, f(4)=20 can be obtained by applying the recursive rule.

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The function (x) = 0.42x + 50 represents the cost (in dollars) of a one-day truck rental when the truck is
driven x miles.
a. What is the truck rental cost when you drive 85 miles?
b. How many miles did you drive when your cost is $65.96?

Answers

a. The truck rental cost when you drive 85 miles is  $85.7.

b. The number of miles driven when the cost is $65.96 is 0.42x.

a. To find the truck rental cost when driving 85 miles, we can substitute the value of x into the given function.

f(x) = 0.42x + 50

Substituting x = 85:

f(85) = 0.42(85) + 50

= 35.7 + 50

= 85.7

Therefore, the truck rental cost when driving 85 miles is $85.70.

b. To determine the number of miles driven when the cost is $65.96, we can set up an equation using the given function.

f(x) = 0.42x + 50

Substituting f(x) = 65.96:

65.96 = 0.42x + 50

Subtracting 50 from both sides:

65.96 - 50 = 0.42x

15.96 = 0.42x

To isolate x, we divide both sides by 0.42:

15.96 / 0.42 = x

38 = x

Therefore, the number of miles driven when the cost is $65.96 is 38 miles.

In summary, when driving 85 miles, the truck rental cost is $85.70, and when the cost is $65.96, the number of miles driven is 38 miles.

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Suppose the architect in Problem 3 reduces the length of the base of the triangle to 100 ft. The function that models the height of the triangle becomes y=50 tan θ .

c. What is the height of the triangle when θ=22°?

Answers

The function that models the height of the triangle becomes y=50 tan θ . c. When θ = 22°, the height of the triangle is approximately 20.20 ft.

To find the height of the triangle when θ = 22°, we can use the given function y = 50 tan θ.

In the given function, y represents the height of the triangle, and θ represents the angle between the base of the triangle and the hypotenuse.

We are given that the length of the base of the triangle is reduced to 100 ft. So now we have a right triangle with a base of 100 ft.

We need to find the height of the triangle when the angle θ is 22°.

Substituting the given values into the function, we have:

y = 50 tan(22°)

To evaluate this expression, we can use a scientific calculator or trigonometric tables.

Using a calculator, we find that the tangent of 22° is approximately 0.4040.

Now we can substitute this value back into the equation:

y = 50 * 0.4040

Simplifying the calculation:

y ≈ 20.20 ft

Therefore, when θ = 22°, the height of the triangle is approximately 20.20 ft.

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The geometric average of -10%, 20% and 40% is _________.
11.2%
14.8%
20.3%
21.4%

Answers

The geometric average of -10%, 20%, and 40% is approximately -20.2%.

To find the geometric average of a set of numbers, you need to multiply them together and then take the nth root, where n is the number of values.

In this case, we have three values: -10%, 20%, and 40%.

Step 1: Convert the percentages to decimal form by dividing by 100.

-10% becomes -0.10

20% becomes 0.20

40% becomes 0.40

Step 2: Multiply the decimal values together.

-0.10 * 0.20 * 0.40 = -0.008

Step 3: Take the cube root (since we have three values) of the result.

∛(-0.008) ≈ -0.202

Step 4: Convert the result back to a percentage by multiplying by 100.

-0.202 * 100 ≈ -20.2%

Therefore, the geometric average of -10%, 20%, and 40% is approximately -20.2%.

None of the given options (11.2%, 14.8%, 20.3%, and 21.4%) matches the calculated value.

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Order -3, 5, -10, 16 from least to greatest. then order the same numbers from closest to zero to farthest from zero. next, describe how your lists are similar to each other. please answer the last part cause we are in need of help plllllllllllllllllleeeeeeeeeeeeeaaaaaaaaaaaaaaase.please thank you

Answers

The similarity lies in the fact that both lists contain the same set of numbers, but their order is determined by different criteria - one based on magnitude and the other based on distance from zero.

Let's order the numbers -3, 5, -10, and 16 as requested.

From least to greatest:

-10, -3, 5, 16

The ordered list from least to greatest is: -10, -3, 5, 16.

Now let's order the same numbers from closest to zero to farthest from zero:

-3, 5, -10, 16

The ordered list from closest to zero to farthest from zero is: -3, 5, -10, 16.

Regarding the similarity between the two lists, both lists contain the same set of numbers: -3, 5, -10, and 16. However, the ordering criteria are different in each case. In the first list, we order the numbers based on their magnitudes, whereas in the second list, we order them based on their distances from zero.

By comparing the two lists, we can observe that the ordering changes since the criteria differ. In the first list, the number -10 appears first because it has the smallest magnitude, while in the second list, -3 appears first because it is closest to zero.

Overall, the similarity lies in the fact that both lists contain the same set of numbers, but their order is determined by different criteria - one based on magnitude and the other based on distance from zero.

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pls help asap if you can!!!!!!!!!!!

Answers

Answer:

RS + ST = RT

9 + 2x - 6 = x + 7

2x - 3 = x + 7

x = 10

Construction 1: To construct a line segment congruent to a given line segment Given: Line Segment AB To Construct: A line segment congruent to AB Construction: On a working line w, with any point C as a center and a radius equal to AB, construct an arc intersecting w at D. Then CD is the required line segment. Since AB = CD, AB = CD by definition of congruency

Answers

To construct a line segment congruent to AB, draw an arc with center C and radius AB on a working line w, intersecting w at D, resulting in CD being congruent to AB by having the same length.

To construct a line segment congruent to a given line segment AB:

Draw a working line w.

Use point C as the center and construct an arc with a radius equal to the length of AB.

Let the arc intersect line w at point D.

Line segment CD, connecting points C and D, is the required line segment.

By construction, CD is congruent to AB because they have the same length.

So, the correct statement should be: Since AB and CD have the same length, AB = CD, which demonstrates congruency between the line segments.

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Solve the following system using Elimination: 5x + 3y = 30 10x + 3y = 45 Ox=6y=10 O x= 3y = 5 Ox=4.8y = 2 Ox=2 y = 8.333
Write the System of Linear equations corresponding to the matrix: 5 1 6 2 4 6

Answers

The solution to the system of linear equations is x = 3 and y = 5.

To solve the system of linear equations using elimination, we manipulate the equations to eliminate one variable. Let's consider the given system:

Equation 1: 5x + 3y = 30

Equation 2: 10x + 3y = 45

We can eliminate the variable y by multiplying Equation 1 by -2 and adding it to Equation 2:

-10x - 6y = -60

10x + 3y = 45

The x-term cancels out, and we are left with -3y = -15. Solving for y, we find y = 5. Substituting this value back into Equation 1 or Equation 2, we can solve for x:

5x + 3(5) = 30

5x + 15 = 30

5x = 15

x = 3

Therefore, the solution to the system of linear equations is x = 3 and y = 5.

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5. Prove by mathematical induction: N N Ž~- (2-) n³ = n=1 n=1

Answers

The equation is true for n = k+1. So, the equation is true for all natural numbers 'n'.

To prove the equation by mathematical induction,

N N Ž~- (2-) n³ = n=1 n=1

it is necessary to follow the below steps.

1: Basis: When n = 1, N N Ž~- (2-) n³ = 1

Therefore, 1³ = 1

The equation is true for n = 1.

2: Inductive Hypothesis: Let's assume that the equation is true for any k, i.e., k is a natural number.N N Ž~- (2-) k³ = 1³ + 2³ + ... + k³ - 2(1²) - 4(2²) - ... - 2(k-1)²

3: Inductive Step: Now, we need to prove that the equation is true for k+1.

N N Ž~- (2-) (k+1)³ = 1³ + 2³ + ... + k³ + (k+1)³ - 2(1²) - 4(2²) - ... - 2(k-1)² - 2k²

The LHS of the above equation can be expanded to: N N Ž~- (2-) (k+1)³= N N Ž~- (2-) k³ + (k+1)³ - 2k²= (1³ + 2³ + ... + k³ - 2(1²) - 4(2²) - ... - 2(k-1)²) + (k+1)³ - 2k²

This is equivalent to the RHS of the equation. Hence, the given equation is proved by mathematical induction.

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Find the lenath s of the arc that subtends a central angle of measure 70 in a circle of radius 12 m.

Answers

In a circle with a radius of 12 m, the length of the arc that subtends a central angle of measure 70° is roughly 8.37 m.

To find the length of the arc that subtends a central angle of measure 70° in a circle of radius 12 m, we can use the formula:

Length of arc = (Angle measure/360°) * 2 * π * radius

In this case, the angle measure is 70° and the radius is 12 m. Plugging these values into the formula, we get:

Length of arc = (70°/360°) * 2 * π * 12 m

Simplifying this expression, we have:

Length of arc = (7/36) * 2 * π * 12 m

To evaluate this expression, we can first simplify the fraction:

Length of arc = (7/18) * 2 * π * 12 m

Multiplying the fraction by 2, we get:

Length of arc = (7/18) * 2 * π * 12 m

Length of arc = (14/18) * π * 12 m

Next, we can simplify the fraction by dividing both the numerator and denominator by their greatest common divisor, which is 2:

Length of arc = (7/9) * π * 12 m

Finally, multiplying the remaining terms, we have:

Length of arc = 7/9 * 12 * π m

Length of arc ≈ 8.37 m

Therefore, the length of the arc that subtends a central angle of measure 70° in a circle of radius 12 m is approximately 8.37 m.

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(1) Write the standard form of the following LP. min s.t. z = −5x₁ + 2x2 - x3 X1 - 4x2 X3 ≥ −5 2x₁ + x₂ + 3x3 ≥ 2 x₁ ≥ 0, x₂ urs, x3 ≤0 -

Answers

The standard form of the given LP is:

minimize z = -5x₁ + 2x₂ - x₃

subject to:

-x₁ - 4x₂ - x₃ ≥ -5

2x₁ + x₂ + 3x₃ ≥ 2

x₁ ≥ 0

x₂ unrestricted

x₃ ≤ 0

To convert the given linear programming problem into standard form, we need to satisfy the following conditions:

1. Objective Function: The objective function should be in the form of minimizing or maximizing a linear expression. In this case, the objective function is z = -5x₁ + 2x₂ - x₃, which is already in the required form.

2. Constraints: Each constraint should be expressed as a linear inequality, with variables on the left side and a constant on the right side. The constraints given are:

-x₁ - 4x₂ - x₃ ≥ -5

2x₁ + x₂ + 3x₃ ≥ 2

x₁ ≥ 0

x₂ unrestricted

x₃ ≤ 0

3. Non-negativity and Unrestricted Variables: All variables should be non-negative or unrestricted. In this case, x₁ is specified as non-negative (x₁ ≥ 0), x₂ is unrestricted, and x₃ is specified as non-positive (x₃ ≤ 0).

By satisfying these conditions, we have transformed the given LP into its standard form. The objective function is in the proper form, the constraints are expressed as linear inequalities, and the variables meet the requirements of non-negativity or unrestrictedness.

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what is the interest earned in a savings account after 12 months on a balance of $1000 if the interest rate is 1% APY compounded yearly?

Answers

The interest earned in a savings account is $10.

Given: Balance = $1000 Interest rate = 1% Compounded yearly Time = 12 months (1 year). We can calculate the interest earned in a savings account using the formula; A = [tex]P(1 + r/n)^ (^n^t^),[/tex] Where, A = Total amount (principal + interest) P = Principal amount (initial investment) R = Annual interest rate (as a decimal)

N = Number of times the interest is compounded per year T = Time (in years). First, we need to convert the annual percentage rate (APY) to a decimal by dividing it by 100.1% APY = 0.01 / 1 = 0.01

Next, we plug in the values into the formula; A = [tex]1000(1 + 0.01/1)^(1×1)[/tex]A = 1000(1.01) A = $1010. After 12 months on a balance of $1000 at an interest rate of 1% APY compounded yearly, the interest earned in a savings account is $10. Answer: $10

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20. The graph below represents angular velocity vs. time for a plate that is rotating about its axis of symmetry. If the value of the hanging weight carrier was m = 0.050 kg and the value of the radius of the pulley was r = 0.01 m. What is the experimental moment of inertia of the plate? (Use: g= 9.78 m/s2)
a. 1.98 x 10-4 kg m2
b. 2.77 x 10-4kg m2
c. 1.40 x 10-4 kg m2
d. 33.6 x 10-6kg m2

Answers

The value of the radius of the pulley was r = 0.01 m, the experimental moment of inertia of the plate is 1.98 x 10^-4 kg m². This is option A

The moment of inertia of a rigid body is a physical quantity that indicates how resistant it is to rotational acceleration around an axis of rotation. Inertia is the term for a property of a body that makes it oppose any force that seeks to modify its motion. The body would be difficult to set into motion or halt if it has a high moment of inertia.

The formula for the moment of inertia is given below:

I = m * r²

where, I is the moment of inertia, m is the mass, and r is the distance from the axis of rotation to the center of mass.

The following is the procedure for calculating the moment of inertia of the plate from the angular velocity versus time graph:

Find the slope of the linear part of the graph to calculate the angular acceleration by the formula α = slope.Substitute the values into the formula τ = Iα to calculate the torque acting on the plate.

Substitute the values into the formula τ = F * r to determine the force acting on the plate.The weight of the hanging mass is converted to force F by the formula F = mg.

Substitute the values into the formula I = m * r²/α to obtain the moment of inertia.

I = m * r²/αI = (0.050 kg) * (0.01 m)²/ (5.5 rad/s²)

I = 1.98 x 10^-4 kg m²

Hence, the experimental moment of inertia of the plate is 1.98 x 10^-4 kg m².

So, the correct answer is A

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A chi-square test is done to test the hypothesis that a set of data represents a f2 ratio of 9:3:3:1. the degree(s) of freedom that should be used is?

Answers

To test the hypothesis that a set of data represents a ratio of 9:3:3:1 using a chi-square test, the degrees of freedom that should be used is 3.

In a chi-square test, the degrees of freedom (df) are determined by the number of categories or groups being compared. In this case, the hypothesis involves four categories with a ratio of 9:3:3:1.

The degrees of freedom for a chi-square test are calculated as (number of categories - 1). Since there are four categories (9, 3, 3, 1), the degrees of freedom will be (4 - 1) = 3.

The chi-square test statistic compares the observed frequencies in each category with the expected frequencies based on the hypothesized ratio. The test determines whether the observed frequencies differ significantly from the expected frequencies, indicating a potential deviation from the hypothesized ratio.

Therefore, in order to conduct a chi-square test for the hypothesis of a ratio of 9:3:3:1, we would use 3 degrees of freedom.

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