1) The turnover (M Ft) of a firm between 2015 and 2019. Year Turnover (M Ft)2015=100%Previous Year=100% 2015 250 2016 260 2017 275 2018 2019 350 300 Task: a.) Calculate the missing values! b.) Calculate and interpret and! (average relative and absolute change) c) Interpret the ratios of 2016!

Liz received $458.57 in cash after getting a deposit ticket. So the answer is (a) $458.57.

The deposit ticket provides us with information on the amounts deposited, the subtotal, and the total after cash is received. To find the amount of cash Liz received, we need to subtract the total after cash received from the subtotal.

Subtotal = $1346.75 (This is the total amount of the two deposits)

Total after cash received = $888.18 (This is the total amount of the deposits after the cash received has been deducted)

To find the amount of cash Liz received:

Therefore, Liz received $458.57 in cash.

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The equation x³ + y³ + z³ = k Is not possible to solve because it is an equation of  degree 3.

We have,

The equation x³ + y³ + z³ = k represents a surface of constant values in a 3D coordinate system.

If we want to solve for one of the variables in terms of the others, it is not possible because it is an equation of degree 3.

However, you can analyze the equation by graphing it and observing the shape of the surface.

It is a special case of an algebraic surface known as an elliptic cone.

If you have a specific value for k, you can plot the surface and observe its shape.

For example, if k = 1, the surface is a twisted cubic curve that intersects the coordinate axes at (1,0,0), (0,1,0), and (0,0,1).

Thus,

The equation is not possible to solve because it is an equation of

degree 3.

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Answer:

Volume is very easy juts use this formula to help you.

Formual= L × W × H

Formula = 7 × 8 × 4

Answer 7 × 8 × 4 = 224

( BTW when solving for volume ur always gonna use multiplication and this formula)

The algebraic expression for Mr. Robinson's budget constraint if running shoes and basketball shorts cost $20 each is:

200 = 20S + 20B, where S is the number of running shoes and B is the number of basketball shorts

The algebraic expression for Mr. Robinson's budget constraint if the cost of the basketball shorts rises to $30 each is:

200 = 20S + 30B

a) If Mr. Robinson spends his entire income on running shoes and basketball shorts, which cost $20 each, we can write the budget constraint as:
200 = 20S + 20B, where S is the number of running shoes and B is the number of basketball shorts.

b) To determine the number of goods he will buy, we need more information about his preferences. Without any further information, we cannot determine the exact quantities of running shoes (S) and basketball shorts (B) he will buy.

c) If the price of basketball shorts rises to $30 each, the budget constraint becomes:
200 = 20S + 30B

d) Again, to determine the number of goods he will buy with the new prices, we need more information about his preferences.

e) To illustrate the results in parts (a) and (c), you would create a graph with running shoes on the x-axis and basketball shorts on the y-axis. The budget constraint in part (a) would be a straight line with a slope of -1 and an intercept of 10 on both axes. For part (c), the budget constraint would be a straight line with a slope of -2/3 and an intercept of 10 on the x-axis and 6.67 on the y-axis.

As for the decomposition of the income and substitution effect, this cannot be determined without more information about Robinson's preferences or the shape of his indifference curves.

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The true mean ages for cars owned by students and faculty is (−0.25, 1.27).

Rounding to two decimal places, the 98% confidence interval is (-0.25, 1.27).

Step 1:

The point estimate for the true difference between the population means is:

x1 - x2 = 7.41 - 6.9 = 0.51

Step 2:

The margin of error can be calculated as:

ME = z*(σ1²/n1 + σ2²/n2)^(1/2)

where z is the critical value for a 98% confidence level, n1 and n2 are the sample sizes, and σ1 and σ2 are the population standard deviations for the two groups.

For a 98% confidence level, the critical value is 2.33 (from a standard normal distribution table).

Substituting the given values, we get:

ME = 2.33*(3.72²/215 + 2.26²/252)^(1/2) = 0.758282

Rounding to six decimal places, the margin of error is 0.758282.

Step 3:

The 98% confidence interval can be calculated as:

(x1 - x2) ± ME

Substituting the values, we get:

0.51 ± 0.76

Therefore, the 98% confidence interval for the difference between the true mean ages for cars owned by students and faculty is (−0.25, 1.27).

Rounding to two decimal places, the 98% confidence interval is (-0.25, 1.27).

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The radius of convergence is r = 1 in the given case.

We can start by using the power series expansion of ln(1+x):

[tex]ln(1+x) = x - x^2/2 + x^3/3 - x^4/4 + ...[/tex]

Now we can substitute this into the integral and use the linearity of integration to obtain:

[tex]∫ x^4 ln(1+x) dx = ∫ x^5 - x^6/2 + x^7/3 - x^8/4 + ... dx[/tex]

We can integrate each term separately to get:

∫ [tex]x^5 dx - ∫ x^6/2 dx + ∫ x^7/3 dx - ∫ x^8/4 dx[/tex]+ ...

Using the power rule for integration, we can simplify this to:

[tex]x^6/6 - x^7/14 + x^8/24 - x^9/36 +[/tex]...

We have now expressed the indefinite integral as a power series with coefficients given by the formula:

[tex]a_n = (-1)^(n+1) / n[/tex]

The radius of convergence of this power series can be found using the ratio test:

[tex]lim |a_(n+1)/a_n| = lim (n/(n+1)) = 1[/tex]

Since the limit is equal to 1, the ratio test is inconclusive, and we need to consider the endpoints of the interval of convergence.

The integral is undefined at x=-1, so the interval of convergence must be of the form (-1,r] or [-r,1), where r is the radius of convergence.

To determine the value of r, we can use the fact that the series for ln(1+x) converges uniformly on compact subsets of the interval (-1,1). This implies that the series fo [tex]x^4[/tex] ln(1+x) also converges uniformly on compact subsets of (-1,1), and hence on the interval (-r,r) for any r < 1.

Therefore, the radius of convergence is r = 1.

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The height of the flagpole is 45 feet

We have to take note of the different trigonometric identities. They include;

From the information given, we have that;

The angle of elevation, θ = 60 degrees

The shadow of the flagpole is the adjacent side = 26 feet

The opposite side is the height of the flagpole = x

Using the tangent identity, we have;

tan 60 = x/26

cross multiply the values

x = tan 60 × 26

Find the tangent values

x = 1. 732(26)

multiply the values

x = 45 feet

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Answer:

1)1) 90

1)2)30

1)3)60

2)1)90

2)2)15

2)3)20

2)4)70

We would choose "smaller" for the necessary sample size and "smaller" for the confidence level.

(a) We know that the margin of error E is 4.7 and the population standard deviation is o = 17.5.

The formula for the margin of error is:

E = z* (o/ sqrt(n))

where z is the critical value for the desired level of confidence, o is the population standard deviation, and n is the sample size.

We want to find n, so we can rearrange the formula to solve for n:

n = (z*o/E)^2

For a 99.8% confidence level, the critical value is z = 2.967.

Substituting the values into the formula, we get:

n = (2.967*17.5/4.7)^2

n = 157.82

Rounding up to the nearest integer, we get a sample size of 158.

Therefore, a sample size of 158 must be drawn in order to obtain a 99.8% confidence interval with a margin of error equal to 4.7.

(b) If the required confidence level were 99.5%, the necessary sample size would be smaller.

This is because the critical value for a 99.5% confidence level is smaller than the critical value for a 99.8% confidence level. As the critical value gets smaller, the margin of error also gets smaller, which means we need a smaller sample size to achieve the same margin of error.

So, we would choose "smaller" for the necessary sample size and "smaller" for the confidence level.

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We cannot conclude that the new beta-blocker medicine is effective at treating high blood pressure at a significance level of αα = 0.01.  

We can perform a chi-squared test to determine if there is a significant difference between the number of subjects in the treatment group who had their high blood pressure successfully treated and the number of subjects in the control group who had their high blood pressure successfully treated.

First, we need to calculate the expected counts for each group. Since we know that the treatment group had 114 successful outcomes, and the control group had 100 successful outcomes, we can calculate the expected counts as follows:

Expected counts for treatment group: (114 * 180) / 210 = 146.7

Expected counts for control group: (100 * 180) / 210 = 187.3

Next, we can calculate the chi-squared value using the formula:

chi-squared = sum(([tex]observed - expected)^2[/tex]/ expected)

where observed and expected are the actual counts and expected counts, respectively.

For the treatment group, the observed count is 114, and the expected count is 146.7. Therefore, we calculate the chi-squared value as:

chi-squared = [tex](114 - 146.7)^2[/tex] / 146.7 = 12.2

For the control group, the observed count is 187.3, and the expected count is 187.3. Therefore, we calculate the chi-squared value as:

chi-squared = (187.3 - [tex]187.3)^2[/tex] / 187.3 = 0

We can then calculate the p-value using the formula:

p-value = 2 * (chi-squared / degrees of freedom)

where degrees of freedom is the number of categories minus 1 for each cell. In this case, we have two cells, one for the treatment group and one for the control group, so the degrees of freedom is 2 - 1 = 1.

Substituting the values into the formula, we get:

p-value = 2 * (12.2 / 1) = 2.44

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The length of diagonal of square is 6√2 inch.

We have,

side length  = 6 inches

Now, the formula for diagonal length of square as

d = √2a

where a is the side of square.

So, the length of diagonal of square is

= 6√2 inch.

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The volume of the piñata that Mrs. Powell is making for her son's birthday, would be 2, 016 in ³

The piñata that Mrs. Powell is making, has a composite shape which means that you can find the volume by first finding the volume of the two composite shapes.

The volume of the cube is:

= Length x Width x Height

= 12 x 12 x 12

= 1, 728 in ³

Then the volume of the triangular prism :

= 1 / 2 x base x height x width

= 1 / 2 x 8 x 12 x 6

= 288 in ³

The volume of the pinata is:

= 1, 728 + 288

= 2, 016 in ³

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Answer:

they jumped

Step-by-step explanation:

They jump because they want to escape Mario and Javier. Paula is very nervous because there are many people, it is not possible to escape quickly

I hope I’m right if not I’m sorry

It is true that, If (a, b) = 1 then if a and b are odd numbers, then (a + b, a − b) = 2. Otherwise, (a + b, a − b) = 1

GCD, or Greatest Common Divisor, is a fundamental concept in number theory. It is defined as the largest positive integer that divides both two or more integers without leaving a remainder.

In other words, the GCD of two numbers is the largest positive integer that divides both of them evenly.

Here we have

Let's consider two cases:

Case 1: a and b are odd numbers

In this case, we can express a and b as:

a = 2k+1

b = 2m+1

where k and m are integers.

Then,

a+b = (2k+1) + (2m+1) = 2(k+m+1)

a-b = (2k+1) - (2m+1) = 2(k-m)

We can see that both a+b and a-b are even.

Therefore, (a+b, a-b) is at least 2.

Now, let's show that (a+b, a-b) cannot be larger than 2:

Suppose, for contradiction, that (a+b, a-b) = d > 2.

Then, d divides both (a+b) and (a-b).

We can write (a+b) and (a-b) as:

=> a+b = dx

=> a-b = dy

where x and y are integers.

Adding the above two equations, we get:

2a = d(x+y)

Since a is odd, d must be odd as well.

Substituting for 'a' in terms of x and y, we get:

=> 2(2k+1) = d(x+y)

=> 4k+2 = d(x+y)

=> 2(2k+1) = 2d(x+y)/2

=> 2k+1 = d(x+y)/2

We can see that d must divide 2k+1 since x and y are integers.

However, we know that (a,b) = 1, which means that a and b do not have any common factors other than 1.

Since a is odd, 2 does not divide a.

Therefore, d cannot be greater than 2, which is a contradiction.

Hence,

(a+b, a-b) = 2 when a and b are odd numbers.

Case 2: a and b are not both odd numbers

Without loss of generality,

Let's assume that a is even and b is odd.

Then, a+b and a-b are both odd.

Since odd numbers do not have any factors of 2, (a+b, a-b) = 1.

Therefore,

(a+b, a-b) = 2 if a and b are both odd and (a+b, a-b) = 1 if a and b are not both odd.

By the above explanation,

It is true that, If (a, b) = 1 then if a and b are odd numbers, then (a + b, a − b) = 2. Otherwise, (a + b, a − b) = 1

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Answer: No

Step-by-step explanation:

If you substitute the x and y values from the coordinates into eh equations, they will not add up.

Answer:

(-8,-30) is a solution

Step-by-step explanation:

The number of possibilities to make three-digit numbers from 1,4,5,6,3 that the first digit is even and the third digit is odd is 24.

1) To find the number of possibilities to make three-digit numbers from 1, 4, 5, 6, 3 where the first digit is even and the third digit is odd, follow these steps:

Identify the even numbers (for the first digit) - 4 and 6.
Identify the odd numbers (for the third digit) - 1, 3, and 5.
Calculate the possibilities for the second digit. Since we're using the remaining digits, there are 3 options left for each combination.
Multiply the possibilities together: 2 (even numbers) x 3 (second digit options) x 3 (odd numbers) = 18 possibilities.

2) To find the number of ways 5 students can seat in a circle, use the formula (n-1)!. Where n is the number of students.

For 5 students, there are (5-1)! = 4! = 4 x 3 x 2 x 1 = 24 ways for them to sit in a circle.

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a) No, f is not injective.

b) Yes, g is injective.

c) No, f is not surjective.

d) Yes, g is surjective.

(a) Is f injective?
No, f is not injective. A counterexample is f(1,2) = 2 * (1 - 1) = 0 and f(2,2) = 2 * (2 - 1) = 0. Since f(1,2) = f(2,2), the function is not injective.

(b) Is g injective?
Yes, g is injective. To prove this, let's assume g(a1, b1) = g(a2, b2). This means (a1, b1) = (a2, b2), which implies a1 = a2 and b1 = b2. Therefore, g is injective.

(c) Is f surjective?
No, f is not surjective. For example, consider the number 1 in the codomain R. There is no pair (a, b) in the domain such that f(a, b) = 1 because 2 * (a - b) must be an even number.

(d) Is g surjective?
Yes, g is surjective. To prove this, let (c, d) be any element in the codomain. Then g(c, d) = (c, d), so there exists an element in the domain for every element in the codomain. Thus, g is surjective.

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A X-squared goodness-of-fit test is performed on a random sample of 360 individuals to see if the number of birthdays each month is proportional to the number of days in the month. X-squared is determined to be 23.5. The P -value for this test is between d) 0.010 < P < 0.025

In this scenario, a X-squared goodness-of-fit test is performed to determine if the number of birthdays each month is proportional to the number of days in the month. With a random sample of 360 individuals and a χ-squared value of 23.5, you need to find the corresponding P-value range.

To find the P-value range, you can use a χ-squared distribution table or calculator. Since there are 12 months in a year, the degrees of freedom for this test will be 12 - 1 = 11.

Upon checking the table or using a calculator, you will find that the P-value for this test is between:

Your answer: d) 0.010 < P < 0.025

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The mean number of workers hired in 2018 is 5, the median is 5.5, and the range is 9.

To determine the mean, median, and range for the number of workers hired by the sixteen hoteliers in 2018, follow these steps:

1. Mean: Add all the numbers together and divide by the total count (16 hoteliers).
(4+5+6+5+3+2+8+0+4+6+7+8+4+5+7+9) / 16 = 83 / 16 = 5.1875

The mean number of workers hired is 5.

2. Median: Arrange the numbers in ascending order and find the middle value(s).
0, 2, 3, 4, 4, 5, 5, 5, 6, 6, 7, 7, 8, 8, 9
Since there are 16 numbers, the median will be the average of the 8th and 9th values.
(5 + 6) / 2 = 5.5

The median number of workers hired is 5.5.

3. Range: Subtract the smallest value from the largest value.
9 - 0 = 9

The range for the number of workers hired is 9.

In conclusion, the mean number of workers hired in 2018 is 5, the median is 5.5, and the range is 9.

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10.-8.=2h

12:00-10:30=1.5h

2h-1.5h=0.5h

13km÷0.5h×2h=52km

P(t < 1.94) ≈ 0.913 (rounded to three decimal places). For 14 degrees of freedom and P(-c < t < c) = 0.95, c ≈ 2.145

(a) To compute P(t < 1.94) for a t distribution with 3 degrees of freedom, you can use a t-distribution table or statistical software. Looking up the value in a table or using software, you will find that P(t < 1.94) ≈ 0.913.
(b) To find the value of c for a t distribution with 14 degrees of freedom such that P(-c < t < c) = 0.95, you can use a t-distribution table or statistical software again. For a 0.95 probability and 14 degrees of freedom, you will find that c ≈ 2.145.
So, the answers are:
(a) P(t < 1.94) ≈ 0.913 (rounded to three decimal places)
(b) For 14 degrees of freedom and P(-c < t < c) = 0.95, c ≈ 2.145

For the first part of the question, we need to use a t-distribution table or calculator to find the probability of the t variable being less than 1.94 with 3 degrees of freedom. Using a t-distribution table, we find that the probability is 0.950 with three decimal places. Therefore, P(t < 1.94) = 0.950.
For the second part of the question, we need to find the value of c such that the probability of the t variable being less than -c with 14 degrees of freedom is 0.025. Using a t-distribution table or calculator, we find that the value of c is 2.145 with three decimal places. Therefore, P(-c < t < c) = 0.95.

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Hi! To answer your question, let's denote the total number of processors as n and the total number of jobs as n as well. Since there are n possible assignments for each job, the total number of assignment vectors is n^n.

To find the probability that exactly one processor will be idle, we can use the following steps:

1. Select the idle processor: There are n ways to choose the idle processor.
2. Assign jobs to the remaining (n-1) processors: Each of the n jobs can be assigned to any of the remaining (n-1) processors, which gives us (n-1)^n possible assignment vectors.

Now, to calculate the probability, we can divide the number of assignment vectors with exactly one idle processor by the total number of assignment vectors:

Probability = (n * (n-1)^n) / n^n

This expression gives the probability that exactly one processor will be idle when there are n jobs and n processors.

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The probability that a point selected will fall on the circle is 0.79

A probability is a number that reflects the chance or likelihood that a particular event will occur. The certainty of an event is is 1 and it is equivalent to 100%

Probability = sample space / total outcome

sample = the area of the circle

total outcome = area of square

area of square = l²

= 22²

= 22 × 22

= 484 units

area of circle = πr²

= 3.14 × 11²

= 3.14 × 121

= 379.94

Therefore ,the probability of a point falling on the circle is

= 379.94/484

= 0.79 ( nearest hundredth)

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The correct answer is c. Whenever the sample size is less than 5% of the population size, a finite population correction factor is needed in computing the standard deviation of the sampling distribution of sample means.

This correction factor takes into account the fact that when the sample size is small relative to the population, the variability of the sample means is affected. Without the correction factor, the standard deviation of the sampling distribution would be overestimated. However, if the sample size is large enough (more than 5% of the population size), the effect of finite population correction is negligible and can be ignored. If the population is infinite, the correction factor is not necessary as the sample size can be considered as a small proportion of the infinite population.

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1) Interest amount = $16.5

2) Interest amount = $4.125

3) Interest amount = $8.36

And, After 5 1/2 years;

Interest amount = $22.99

4) Interest amount = $33.02

5) Interest amount = $45.6

Now, We can simplify as;

1) Principal amount = $550

Rate = 3%

Time = 1 year

Hence, We get;

Interest amount = 550 x 3 x 1 / 100

                         = $16.5

2)  Principal amount = $1500

Rate = 3%

Time = 1/4 year

Hence, We get;

Interest amount = 1500 x 3 x 1 / 100 x 4

                         = $4.125

3) Principal amount = $418

Rate = 2%

Time = 1 year

Hence, We get;

Interest amount = 418 x 2 x 1 / 100

                         = $8.36

And, After 5 1/2 years;

Interest amount = 418 x 11 x 1 / 100 x 2

                         = $22.99

4)  Principal amount = $825.5

Rate = 4%

Time = 1 year

Hence, We get;

Interest amount = 825.5 x 4 x 1 / 100

                         = $33.02

5) Principal amount = $1140

Rate = 6%

Time = 1 year

Hence, We get;

Interest amount = 1140 x 6 x 1 / 100

                         = $68.4

And, After 5 4 years;

Interest amount = 1140 x 4 x 1 / 100

                         = $45.6

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Answer:

Step-by-step explanation:

If the squares of the two shorter sides add up to the square of the hypotenuse, the triangle contains a right angle.

The industry's supply function for 3 identical firms with total cost function C=aq+bq^2 and q=-191 is: Qs = -1/6b - 1/3a - 191/6.

What is indirect utility function?

The indirect utility function is a mathematical function that expresses the maximum utility that a consumer can achieve, given a certain level of income and prices of goods and services

a) The ordinary demand function for Q1 is obtained by maximizing U with respect to Q1 subject to the budget constraint. Let p1 be the price of Q1, and let M be the consumer's income. Then the budget constraint is given by:

p1Q1 + M = 0

Solving for Q1, we get:

Q1 = -M/p1

Substituting this into U, we get:

U = 29192 + 92(-M/p1)

To obtain the ordinary demand function for Q1, we differentiate U with respect to p1 and solve for Q1:

dU/dp1 = -92M/p1^2

Setting this equal to the price of Q1, we get:

p1 = 92M/Q1^2

Solving for Q1, we get the ordinary demand function for Q1:

Q1 = sqrt(92M/p1)

The compensated demand function for Q1 is obtained by finding the cost of maintaining the consumer's utility level after a change in the price of Q1. This is given by:

C(Q1',p1,U) = min{p1Q1' + p2Q2 : U(Q1',Q2) = U}

where p2 is the price of some other good, and U(Q1',Q2) is the utility function with Q1' replacing Q1.

The compensated demand function for Q1 is then obtained by differentiating C with respect to p1 and solving for Q1:

dC/dp1 = -Q1'

Setting this equal to the price of Q1, we get:

p1 = -dC/dQ1' = -d/dQ1'(p1Q1' + p2Q2)

Solving for Q1', we get the compensated demand function for Q1:

Q1' = (p1/p2)Q2

b) The indirect utility function is given by:

V(p1,p2,M) = max{U(Q1,Q2) : p1Q1 + p2Q2 = M}

Using the utility function U = 29192 + 92, the budget constraint p1Q1 + p2Q2 = M, and the ordinary demand function for Q1, we can solve for the indirect utility function:

V(p1,p2,M) = U(Q1(p1,p2,M),Q2(p1,p2,M)) = 29192 + 92(Q1(p1,p2,M))

Substituting the ordinary demand function for Q1 into this equation, we get:

V(p1,p2,M) = 29192 + 92(sqrt(92M/p1))

c) Roy's identity states that the derivative of the indirect utility function with respect to the price of a good gives the compensated demand function for that good:

dV/dp1 = Q1'

Using the indirect utility function derived in part b, we can solve for the demand function for Q1:

dV/dp1 = 92M/(p1^2 sqrt(92M/p1)) = Q1'

Simplifying, we get:

Q1' = 92sqrt(92M/p1)

II. The industry's supply function is obtained by adding the output of each firm at a given price level:

Q = Q1 + Q2 + Q3

where Qi is the output of the ith firm. To find the output of each firm, we need to solve for the profit-maximizing level of output:

πi = piqi - Ci(qi)

where πi is the profit of the ith firm, pi is the price of the good, qi is the output of the ith firm, and Ci

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Complete Question:

I. Consider the utility function U(Q1) = 29192 + 92Q1, where Q1 is the quantity consumed of a certain good.

a) Construct the ordinary and compensated demand functions for Q1.

b) Construct the indirect utility function.

c) Apply Roy's identity to derive the demand for Q1.

II. Consider an industry with 3 identical firms in which the ith firm's total cost function is C = aq + bq^2 (i=1,...,3), where q is the quantity produced by the firm and a, b are positive constants. The market demand curve is given by Qd = 200 - 2P, where Qd is the total quantity demanded in the market and P is the market price. Each firm takes the market price as given.

Derive the industry's supply function.

Please note that the point values given in the original prompt are also included for reference.

Answer:  if a function's output values are all above the x-axis, then the function is positive

Step-by-step explanation: