A description of the distribution of the values of a random variable and their associated probabilities is called a.

Answers

Answer 1

A description of the distribution of the values of a random variable and their associated probabilities is called a Probability Distribution.

What is a random variable?

Understanding the random variable and its probability is necessary for the analysis of complex random occurrences. The numerical result of a random process, which might be discrete or continuous in nature, is known as a random variable.

Now,

If the result of the random variable is tabulated along with the probabilities, it makes it easier to analyze random events. A probability distribution table is a description of the distribution of the values of a random variable along with their probabilities. Graphs and mathematical formulas can both be used to represent the probability distribution.

Hence, A description of the distribution of the values of a random variable and their associated probabilities is called a Probability Distribution.

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Related Questions

HELP HELP QUICK an olympic team won 20 medals. if 70% of the medals were gold, how many gold medals did they win?

Answers

they would have 14 gold medals

BRAINLIEST PERSON WHO GETS IT

Nyoko wrote these two questions.

Equation 1: 6x-5+2x = 4(2x-1) - 1

Equation 2: 3x +7 = bx+7


Part A

Nyoko says that Equation 1 has one solution. Do you agree with her? Explain your reasonings.



Part B

Can Nyoko find a value for b in Equation 2 so that the equation has no solutions? Explain Your REASONING!

Answers

a) The equation 1 has an infinite number of solutions, as both linear functions have the same slope and internet, hence Nyoko is incorrect.

b) Nyoko cannot find a value of b so that the equation has no solutions.

How to solve the equations?

The equation 1 is given as follows:

6x - 5 + 2x = 4(2x - 1) - 1.

Combining the like terms and applying the distributive property, the simplified equations are given as follows:

8x - 5 = 8x - 4 - 1

8x - 5 = 8x - 5.

As they are linear functions with the same slope and intercept, the number of soltuions is of infinity.

The equation 2 is given as follows:

3x + 7 = bx + 7.

A system of linear equations will have zero solutions when:

The equations have the same slope.The equations have different intercepts.

As they have the same intercept for this problem, it is not possible to attribute a value of b such that the equation will have no solution.

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a simple random sample of the weight of 40 women has a mean of 146.22 lb. research from other sources suggests that the population standard deviation of weight of women is 30.86 lb. find a 95% confidence interval estimate of the mean weight of all women.

Answers

The mean weight of all women is between 135.01 lb and 157.43 lb, with 95% confidence. This subject is about statistical inference, especially confidence intervals.

We may use the following formula to calculate the 95% confidence interval estimate of the mean weight of all women:

The confidence interval (CI) for the population mean is calculated by adding and subtracting a margin of error from the sample mean (x), where the margin of error is equal to the critical value (z) from the standard normal distribution multiplied by the standard error.

CI represents the confidence interval, x is the sample mean, the population standard deviation, n represents the sample size, and z represents the z-score corresponding to the chosen confidence level.

Given the data in the problem:

The average weight of the 40 women in the sample is x = 146.22 lb.

Women's weight has a population standard deviation of = 30.86 lb.

The sample size is 40 people.

The intended degree of confidence is 95%, corresponding to a z-score of 1.96.

When we plug in the values, we get:

\(CI = 146.22 ± 1.96*(30.86/√40)\\= 146.22 ± 10.21\)

= [135.01, 157.43]

As a result, we can state with 95% certainty that the average weight of all women falls between 135.01 lb and 157.43 lb.

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The number of days between May 20 and November 22 is: Multiple Choice O None of these O 186 O 183 O 197 O 206

Answers

The number of days between May 20 and November 22 is 182 days. Option C, 183 is the closest answer to the correct answer.

To determine the number of days between May 20 and November 22, we first need to determine the number of days in each month. Here are the days in each month of the year: January: 31 days, February: 28 days (or 29 in a leap year)March: 31 days, April: 30 days, May: 31 days, June: 30 days, July: 31 days, August: 31 days, September: 30 days, October: 31 days, November: 30 days, December: 31 days. Using the formula D = (M2 - M1) × 30 + (D2 - D1) where D is the number of days, M is the month, and D is the date, we can calculate the number of days between May 20 and November 22:D = (11 - 5) × 30 + (22 - 20)D = 6 × 30 + 2D = 180 + 2D = 182.

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6. (a) Draw a conversion graph for GST against selling price from $30 to $46.50, given that the
GST is 7% of the selling price.
(b) Find the GST if the selling price is $37.50.
(c) Find the selling price if the GST is $3.02.
(d) Use the graph to find the gradient. What does this value mean?

Answers

a. Given that the GST is 7% of the selling price, we can calculate the GST for different selling prices within the given range.

Selling Price (x) | GST (y)

$30 | $2.10

$31 | $2.17

$32 | $2.24

$33 | $2.31

$34 | $2.38

$35 | $2.45

$36 | $2.52

$37 | $2.59

$38 | $2.66

$39 | $2.73

$40 | $2.80

$41 | $2.87

$42 | $2.94

$43 | $3.01

$44 | $3.08

$45 | $3.15

$46 | $3.22

$46.50 | $3.26

(b) The GST for a selling price of $37.50 is approximately $2.63.

c The selling price for a GST of $3.02 is approximately $43.01.

d. The gradient in this case is approximately 0.0703.

How to calculate the value

b.It should be noted that we can estimate the GST by taking the average of the two values:

GST = ($2.59 + $2.66) / 2 = $2.625

Therefore, the GST for a selling price of $37.50 is approximately $2.63.

(c) Selling Price = $43 + ($3.02 - $3.01) * (($44 - $43) / ($3.08 - $3.01))

Selling Price = $43 + 0.01 * (1) = $43.01

Therefore, the selling price for a GST of $3.02 is approximately $43.01.

(d) The gradient of the graph represents the rate of change of the GST with respect to the selling price. In this case, the gradient is constant since the GST is a fixed percentage of the selling price.

Gradient = Change in GST / Change in Selling Price

Let's take two points from the table: ($30, $2.10) and ($46.50, $3.26)

Change in GST = $3.26 - $2.10 = $1.16

Change in Selling Price = $46.50 - $30 = $16.50

Gradient = $1.16 / $16.50 ≈ 0.0703

The gradient in this case is approximately 0.0703. This value represents the constant rate at which the GST increases for each unit increase in the selling price. In other words, for every dollar increase in the selling

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Find the length of side x in simplest radical form with a rational denominator.

Find the length of side x in simplest radical form with a rational denominator.

Answers

Answer:

relationship between perpendicular and hypotenuse is given by sin angle

sin60=p/h

√3/2=2/x

x=4/√3=2.31

what is the sum of the prime numbers of 420 do not repeat any prime factors A 15 B 16 C.17 D. 18 E. 19

Answers

Answer:

C)

Step-by-step explanation:

Prime factorization of 420 = 2 × 2 × 3 × 5 × 7 = 22 × 3 × 5 × 7.

If you take...

2 + 2 + 3 + 5 + 7...

You would get 17.

Hope this helps! :) Good Luck!

-kiniwih426

after graduation you achieve your dream of opneing your own art shop. how many wokers should you hire

Answers

Answer:

Step-by-step explanation:

Hanne Keiling is a senior digital communications expert with over eight years of experience ideating, executing and launching user-first experiences to achieve business goals. She is a former Indeed editorial team member who helped job seekers be successful on Indeed throughout their job search and into their careers.

Introducing yourself well sets the stage for a professional conversation whether at a networking event, with a colleague or at the beginning of an interview. One tool that many people use to make introductions simple and effective is the elevator pitch.

Below, you will find several elevator pitch examples along with tips to help ideate, craft and deliver your personal message.

Video: How To Create the Perfect Elevator Pitch - Plus Examples

Jenn, a certified career coach, helps you tell a compelling story about who you are and where you are going in under two minutes.

what is the equation of the line that passes through the points (6,5) and (-7,4)?

Answers

Answer:

13y= x + 59

Step-by-step explanation:

gradient= y² - y¹ / x²- x¹

=5 - 4 / 6- -7

= 1/ 13

equation of line: y=mx+c

x y

point (6,5)

substitute:

5= 1 (6) + c

13

c = 5 - 6

13

= 59

13

y=mx+c

13y= 1x + 59

Express in simplest form.

Express in simplest form.

Answers

Answer:

\(3a^{2} b^{2} -6a\)

Step-by-step explanation:

\(\frac{15a^{3}b(3ab^{2}-6 ) }{15a^{2} b}\)       take \(15a^{3}\)b common

 \(=3a^{2} b^{2}-6a\)    cancel like terms

can someone help me with this quickly

can someone help me with this quickly

Answers

Answer:

Step-by-step explanation:

 y - y0 = m(x - x0)

y - (-8) = (-1/2)(x - 4)

 y + 8 = (-1/2)x + 2

 y = (-1/2)x - 6  or  (1/2)x + y = -6

Please help!! Thanks in advance!! NO links!!

Kallan will spin each spinner one time. What is the probability that the first spinner will land on a number greater than 7 and the second spinner will land on blue?

Please help!! Thanks in advance!! NO links!!Kallan will spin each spinner one time. What is the probability

Answers

Answer:

probability for numbers greater than seven would be: 5/12

probability for landing on blue would be: 2/8

Step-by-step explanation

first, I counted all of the spaces, then I counted only the blue , or only the numbers over 7.

Find the value of each variable.
y =
z =

Find the value of each variable.y =z =

Answers

Answer:

z=70 degrees y=117 degrees

Step-by-step explanation:

To find angle z, you have to know that when two sides are against each other, they have to equal 180 degrees so 180-110 is equal to 70. Therefore z is equal to 70 degrees. To find y, you have to know that a quadrilateral's total degrees is equal to 360 degrees. Therefore, you have to do 360-93-80-70 which is equal to 117 degrees. Therefore y is equal to 117 degrees.

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CAN SOMEONE PLEASE HELP!!!!!!!!!!! WORTH 20 POINTS AND BRAINLIEST!!!!!!!!!!!! Megan dilates ∆JKL about point J by a scale factor of 3/5 to create ∆JNO.

What is the length of segment NO? Show all work solving for segment NO.

CAN SOMEONE PLEASE HELP!!!!!!!!!!! WORTH 20 POINTS AND BRAINLIEST!!!!!!!!!!!! Megan dilates JKL about

Answers

Answer:

Multiply everything by 3/5 or .6.

Step-by-step explanation:

This will change the scale of the triangle to the new scale which is the answer.

20*.6=12

25*.6=15

32*.6=19.2

The area of a circle is 4π cm². What is the circumference, in centimeters? Express your answer in terms of π pie

Answers

Answer:

The formula for the area of a circle is:

A = πr^2

where A is the area and r is the radius.

In this case, we are given that the area is 4π cm². Solving for the radius, we get:

4π = πr^2

r^2 = 4

r = 2

So the radius of the circle is 2 cm.

The formula for the circumference of a circle is:

C = 2πr

Plugging in the value for the radius, we get:

C = 2π(2) = 4π

Therefore, the circumference of the circle is 4π cm.

4(a2-b2)2-8ab(a2-b2)-5a2b2 please help me​

Answers

Answer: \(4a^4+4b^4-8a^3b+8ab^3-13a^2b^2\)

Step-by-step explanation:

\(4(a^2-b^2)^2-8ab(a^2-b^2)-5a^2b^2\)

First, solve the square binomial.

\(4((a^2)^2-2(a^2)(b^2)+(b^2)^2)-8ab(a^2-b^2)-5a^2b^2\)

\(4(a^4-2a^2b^2+b^4)-8ab(a^2-b^2)-5a^2b^2\)

Now, distribute the 4 and 8ab respectively.

\(4a^4-8a^2b^2+4b^4-8a^3b+8ab^3-5a^2b^2\)

Combine like terms. (I'll group them so that you can see them more clearly)

\(4a^4+4b^4-8a^3b+8ab^3+(-8a^2b^2-5a^2b^2)\)

\(4a^4+4b^4-8a^3b+8ab^3+(-13a^2b^2)\)

\(4a^4+4b^4-8a^3b+8ab^3-13a^2b^2\)

Answer:

(2a²-2b²+a²b²)(2a²-2b²-5a²b²)

Step-by-step explanation:

4(a²-b²)²-8ab(a²-b²)-5a²b²

Let's replace 2(a²-b²)= m and a²b²=n for simplicity

then we have

m²-4mn-5n²= m²-4mn+4n²-4n²-5n²= (m-2n)²- 9n²= (m-2n)²- (3n)²= (m-2n+3n)(m-2n-3n)= (m+n)(m-5n)

Now we can replace m and n with initial values:

(m+n)(m-5n)== (2(a²-b²)+a²b²)(2(a²-b²)- 5a²b²)= (2a²-2b²+a²b²)(2a²-2b²-5a²b²)

WILL GIVE BRAINLIEST + 5 STAR

x=
Length=
Width=

WILL GIVE BRAINLIEST + 5 STARx=Length=Width=

Answers

Answer:

16

14

8

Step-by-step explanation:

Write an equation that shows the relationship 44% of y
is 40.

Answers

Answer:

it can be written as 0.44y=40

44% can be written as 0.44

Step-by-step explanation:

to solve for y divide both sides by 0.44

to get y is equal to 100

use the kkt
Use the method of steepest ascent to approximate the solution to max z = -(x₁ - 3)² - (x₂ - 2)² s. t. (x₁, x₂) E R²

Answers

To approximate the solution and maximize the given objective function we need to find the steepest ascent direction and iteratively update the values of x₁ and x₂ to approach the maximum value of z.

The method of steepest ascent involves finding the direction that leads to the maximum increase in the objective function and updating the values of the decision variables accordingly. In this case, we aim to maximize the objective function z = -(x₁ - 3)² - (x₂ - 2)².

To find the steepest ascent direction, we can take the gradient of the objective function with respect to x₁ and x₂. The gradient represents the direction of the steepest increase in the objective function. In this case, the gradient is given by (∂z/∂x₁, ∂z/∂x₂) = (-2(x₁ - 3), -2(x₂ - 2)).

Starting with initial values for x₁ and x₂, we can update their values iteratively by adding a fraction of the gradient to each variable. The fraction determines the step size or learning rate and should be chosen carefully to ensure convergence to the maximum value of z.

By repeatedly updating the values of x₁ and x₂ in the direction of steepest ascent, we can approach the solution that maximizes the objective function z. The process continues until convergence is achieved or a predefined stopping criterion is met.

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What is the volume of the figure?

What is the volume of the figure?

Answers

Answer:

106

Explain how you found your answer:

Find the value of this expression:
6 - 2 + 4 * 2

12
16
-6

Answers

Answer: 12

Step-by-step explanation:

6-2 + 4 x 2 =  6 - 2. + 8

4 + 8 = 12

Tree Cutting Problem An Investigation (T/I) I The value of the wood in a tree over time is given by V(t) 224, where Vis the current value of the wood in the tree in S and t is time in years. Ft We have, the discount factor a) Write an equation for the present value of the wood in the tree, A(t) (2 marks) b) Rewrite the present value equation using the natural logarithm (2 marks) c) We want to maximize the present value of the wood, find the first order conditions for a maximum and solve fort". (4 marks) d) If the discount rate, ris 4%, when should we cut the tree down? (2) e) Use the second order conditions to verify that you have indeed found a maximum (2)

Answers

a) The present value of the wood in the tree, A(t), can be expressed using the given discount factor F as:

A(t) = V(t) / (1 + r)^t

Where V(t) represents the value of the wood in the tree at time t, and r is the discount rate.

b) To rewrite the present value equation using the natural logarithm, we can use the property of logarithms that states log(a/b) = log(a) - log(b):

A(t) = V(t) * (1 + r)^(-t)

ln(A(t)) = ln(V(t)) - t * ln(1 + r)

c) To find the first-order conditions for maximizing the present value of the wood, we need to differentiate the equation from part (b) with respect to time t and set it equal to zero:

d/dt [ln(A(t))] = d/dt [ln(V(t)) - t * ln(1 + r)] = 0

Solving for t in the above equation will give us the value of t that maximizes the present value of the wood.

d) If the discount rate r is 4%, we can substitute this value into the equation from part (b) and solve for t:

ln(A(t)) = ln(V(t)) - t * ln(1 + 0.04)

Given the specific values for V(t) and A(t) are not provided, we cannot determine the exact value of t in this case.

e) To verify that we have indeed found a maximum, we can use the second-order conditions. This involves taking the second derivative of ln(A(t)) with respect to t and evaluating it at the critical point (t-value obtained from part (c)).

If the second derivative is negative at the critical point, it confirms that the present value of the wood is maximized.

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Suppose the function y(t) satisfies the differential equation y ′(t)+a(t)y(t)=b(t) where the functions a(t) and b(t) are not constant. Define the function z(t)=y(4t). Which of the following differential equations is z(t) a solution to? z ′ (t)+4a(4t)z(t)=4b(4t)
z ′ (t)+4a(t)z(t)=4b(t)
z ′ (t)+a(4t)z(t)=b(4t)
z ′ (t)+a(t)z(t)=b(t)

Answers

z(t) satisfies the differential equation: z'(t) + 4a(4t)z(t) = 4b(4t)

So, the correct option is z'(t) + 4a(4t)z(t) = 4b(4t).

To determine which differential equation z(t) satisfies, let's differentiate z(t) with respect to t and substitute it into the given differential equation.

We have z(t) = y(4t), so differentiating z(t) with respect to t using the chain rule gives:

z'(t) = (dy/dt)(4t) = 4(dy/dt)(4t)

Now let's substitute z(t) = y(4t) and z'(t) = 4(dy/dt)(4t) into the differential equation y'(t) + a(t)y(t) = b(t):

4(dy/dt)(4t) + a(4t)y(4t) = b(4t)

Now, let's compare the coefficients of each term in the resulting equation:

For the first option, z'(t) + 4a(4t)z(t) = 4(dy/dt)(4t) + 4a(4t)y(4t), we can see that it matches the form of the resulting equation.

Therefore, z(t) satisfies the differential equation:

z'(t) + 4a(4t)z(t) = 4b(4t)

So, the correct option is z'(t) + 4a(4t)z(t) = 4b(4t).

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John has $5.05 in quarters and nickels in his pocket. If John only has 25 coins in his pocket, how many of the coins are quarters?

Answers

Answer:

Step-by-step explanation:

q+n=25

n=25-q

25q+5n=505, using n=25-q in this equation gives you

25q+5(25-q)=505

25q+125-5q=505

20q+125=505

20q=380

q=19

So 19 of the coins are quarters.

Answer:

John has 19 quarters out of 25 coins.

Step-by-step explanation:

Part 2 of 2 An oil company is considering two sites on which to drill, described as follows: ​

Part 2 of 2 An oil company is considering two sites on which to drill, described as follows:

Answers

a. Site A has the larger expected profit.

b. the expected profit for Site A is larger than Site B by $18 million

How to determine the site that has larger profit

To find the expected profit for each site  we use the formula:

Expected Profit = (Probability of Finding Oil x Profit if Oil is Found) - (Probability of Not Finding Oil x Loss if No Oil is Found)

For Site A we have

Expected Profit = (0.2 x $110 million) - (0.8 x $17 million)

Expected Profit = $ 22 million - $ 13.6 million

Expected Profit = $8.4 million

For Site B

Expected Profit = (0.1 x $ 165 million) - (0.9 x $ 29 million)

Expected Profit = $16.5 million - $26.1 million

Expected Profit = -$9.6 million

b. The expected profit for Site A is $ 8.4 million and the expected profit for Site B is -$ 9.6 million.

the difference in expected profit is

= $ 8.4 million - (-$9.6 million)

= $18 million

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please help
tou is working on the stage scenery for a play. he needs to know the area of a circle with a radius of 7 feet. use the formula A=3.14r² to find the area

Answers

Answer:

Step-by-step explanation:

\(\lim_{n \to \infty} a_n \left[\begin{array}{ccc}1&2&3\\4&5&6\\7&8&9\end{array}\right]\)

Answer:

A=153.86

Explanation:

In your equation the radius plugs into the r

A=3.14(7)^2

A=3.14(49)

A=153.86

take a strip of paper, put two half twists in it, and glue the ends together. cut it lengthwise along the center core line. what do you get? can you explain why?

Answers

When you take a strip of paper, put two half twists in it, and glue the ends together and then cut it lengthwise along the center core line, it results in two interlocked loops.What you get is two interlocked loops when you cut it lengthwise along the center core line. This occurs because the paper strip has been twisted twice. The twist that was made in the paper strip produces two loops that are intertwined after it is cut down the center line.Paper is quite a flexible substance. When it's twisted, it retains its new shape. Because of this, when you twist a strip of paper, it retains its new form. When the strip is bent and connected to form a loop, the twisted part becomes embedded in the paper's core. This produces two loops that are interconnected. When the loop is sliced down the middle, the two loops remain interconnected since the twists in the strip have become embedded in the core.

Here is a balanced hanger. 48=mXmXmXm

Answers

The solution to this equation is m = 6.98. This means that if we multiply 6.98 by itself 6 times, we will get the value of 48.

What is Balanced hanger?

A balanced hanger is a mathematical equation that can be used to solve algebraic problems. It consists of a number of equal signs, with an equal number of symbols on each side.


In the case of the equation 48=mXmXmXmXmX, the number of symbols on each side is 6. This means that the equation is asking us to solve for the unknown value of m, which when multiplied by itself 6 times will give us the value of 48.

To solve this equation, we can use the distributive property to expand the equation. This property tells us that if we multiply a number by a sum of two or more numbers, we can break up that multiplication into several separate multiplications. For example, if we have 2(3+4), we can break it up into 2(3) + 2(4) and simplify it further to 6+8=14. In the case of our equation, we can break it up into 6 separate multiplications, mXmXmXmXmX.

Now, we can solve the equation using the inverse operation of multiplication, which is division. We can divide both sides of the equation by m and get 48/m=mXmXmXmXm. We can then divide both sides by the other m's and get 48/mXmXmXmX=m. Finally, we can divide both sides by the remaining m and get 48/mXmXmX=1. This means that m = the square root of 48, or 6.98.

Therefore, the solution to this equation is m = 6.98. This means that if we multiply 6.98 by itself 6 times, we will get the value of 48.

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The solution to this equation is m = 6.98. This means that if we multiply 6.98 by itself 6 times, we will get the value of 48.

What is Balanced hanger?

A balanced hanger is a mathematical equation that can be used to solve algebraic problems. It consists of a number of equal signs, with an equal number of symbols on each side.


In the case of the equation 48=mXmXmXmXmX, the number of symbols on each side is 6. This means that the equation is asking us to solve for the unknown value of m, which when multiplied by itself 6 times will give us the value of 48.

To solve this equation, we can use the distributive property to expand the equation. This property tells us that if we multiply a number by a sum of two or more numbers, we can break up that multiplication into several separate multiplications. For example, if we have 2(3+4), we can break it up into 2(3) + 2(4) and simplify it further to 6+8=14. In the case of our equation, we can break it up into 6 separate multiplications, mXmXmXmXmX.

Now, we can solve the equation using the inverse operation of multiplication, which is division. We can divide both sides of the equation by m and get 48/m=mXmXmXmXm. We can then divide both sides by the other m's and get 48/mXmXmXmX=m. Finally, we can divide both sides by the remaining m and get 48/mXmXmX=1. This means that m = the square root of 48, or 6.98.

Therefore, the solution to this equation is m = 6.98. This means that if we multiply 6.98 by itself 6 times, we will get the value of 48.

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Complete questions as follows-

Here is a balanced hanger. 48=mXmXmXm solve the equation.

a circular arc has measure and is intercepted by a central angle of radians. find the radius of the circle.

Answers

The radius of the circle is 3.5 cm.

The formula for the arc length of a circle is s = rθ, where s is the arc length, r is the radius, and θ is the central angle in radians. We know that s = 8 cm and θ = 2.3 radians, so we can solve for r.

r = s / θ = 8 cm / 2.3 radians = 3.478 cm

Here is an explanation of the steps involved in solving the problem:

We know that the arc length is 8 cm and the central angle is 2.3 radians.

We can use the formula s = rθ to solve for the radius r.

Plugging in the known values for s and θ, we get r = 3.478 cm.

Rounding to the nearest tenth, we get r = 3.5 cm.

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Correct Question:

A circular arc has measure 8 cm and is intercepted by a central angle of 2.3 radians. Find the radius of the circle. Do not round any intermediate computations, and round your answer to the nearest tenth.

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Answers

Answer:

d: 83

e: 97

f: 83

Step-by-step explanation:

d: We first have to find out f, so f and d can be alternate interior angles, which means they can be congruent to each other.

e: e is a vertical angle to the given angle, which means they are congruent, making it also 97 degrees.

f: f is a supplementary angle to the given angle, which means we can subtract 97 from 180 to give us 83.

Going back to angle d, now that we know f is 83 degrees, then d is an alternate interior angle, so d=f, meaning d is also 83 degrees.

Hope this helps! :)

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