Answers
Answer:
19.25
Step-by-step explanation:
You add up all three sides which would be 10+3.25+6 to get the awnser 19.25
Related Questions
You have to fined the value for a
Answers
The value for a is equal to 4.
What is the basic proportionality theorem?In Mathematics and Geometry, the basic proportionality theorem states that when any of the two (2) sides of a triangle is intersected by a straight line which is parallel to the third (3rd) side of the triangle, then, the two (2) sides that are intersected would be divided proportionally and in the same ratio.
By applying the basic proportionality theorem to the given triangle, we have the following:
EG/CE = GF/DF
(a + 12)/8 = (3a + 2)/7
By cross-multiplying, we have the following:
7a + 84 = 24a + 16
24a - 7a = 84 - 16
17a = 68
a = 68/17
a = 4.
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A cylindrical jar of peanut butter has a height of 6 inches and a diameter of 3 inches. How many cubic inches of peanut butter can the jar hold? Use π = 3.14.
339.12 in3
169.56 in3
84.78 in3
42.39 in3
Answers
Answer:
42.39
Step-by-step explanation:
The formula for the volume of a cylinder:
V= πr^2h
Substitute values into the formula that was given:
π = 3.14
r = 3/2
h = 6
3.14(1.5^2)6=
3.14(13.5)=
42.39
I hoped this solved your problem <3
(I took the FLVS test too and got it right)
Which theme park would you choose for yourself and your friends? Explain why.
Answers
#3
Water slides are overrated and roller coasters are dangerous, id rather check out the vr
Add or subtract then complete the chart.
Answers
A simplification of the polynomial is -c³ + 2c² - 9c + 1.
The degree of the polynomial is equal to 3.
The leading coefficient of the polynomial is equal to -1.
The constant of the polynomial is equal to 1.
What is a polynomial function?In Mathematics and Geometry, a polynomial function is a mathematical expression which comprises intermediates (variables), constants, and whole number exponents with different numerical value, that are typically combined by using mathematical operations such as the following:
Multiplication (product)AdditionSubtractionNext, we would subtract the two (2) given polynomials as follows;
Expression = (c³ + 2c² - 5c) - (2c³ + 4c - 1)
Expression = c³ + 2c² - 5c - 2c³ - 4c + 1
By rearranging the given polynomials by combining like terms, we have;
Expression = -c³ + 2c² - 9c + 1
Where:
The degree = 3.
The leading coefficient = -1.
The constant = 1.
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What is the solution to the inequality -0.4x 1.27> 0.8
Answers
Answer:
x < 1.175
Step-by-step explanation:
-0.4x + 1.27 > 0.8
-0.4x > -0.47
x < 1.175
1. Nancy is testing two different plant fertilizers and trying to determine which one would
work best for growing peppers. The table shows the number of peppers several plants
produced over a 7-week period based on the fertilizer used.
Fertilizer A
Fertilizer B
Week 1 Week 2
26
25
30
28
Week 3 Week 4
30
30
23
26
a. Find the mean number of peppers for each fertilizer.
Fertilizer A:
Week 5 Week 6 Week 7
31
32
30
25
Fertilizer A:
I
Fertilizer B:
b. Find the mean absolute deviation (MAD) of peppers for each fertilizer.
Fertilizer B:
29
27
copy for classroom use.
Answers
Answer:
Answer is A
Step-by-step explanation:
The average of Fertilizer A is 28 + 23 + 32 + 33 + 35 + 34 + 29 / 7 = 30.57
The average of Fertilizer B is 31+ 17 + 22 + 35 + 37 + 23 + 28 / 7 = 27.57
Because 30.57 > 27.57, then A is the better answer.
Answer: The IQR of the peppers produced by the plants treated with fertilizer A is less than the IQR of the peppers produced by the plants treated with fertilizer
Step-by-step explanation:
I took the test!
Oakwood Inc. Is a public enterprise whose shares are traded in the over-the-counter market. At December 31, 2018, Oakwood had 6,000,000 authorized shares of $10 par value common stock, of which 2,000,000 shares were issued and outstanding. The shareholders' equity accounts at December 31, 2018, had the following balances: Common stock $20,000,000 Additional paid-in capital on common stock 7,500,000 Retained earnings 6,470,000 Transactions during 2019 and other information relating to the shareholders' equity accounts were as follows: On January 5, 2019, Oakwood issued at $54 per share, 100,000 shares of $50 par value, 9%, cumulative convertible preferred stock. Each share of preferred stock is convertible, at the option of the holder, into 2 shares of common stock. Oakwood had 600,000 authorized shares of preferred stock. On February 2, 2019, Oakwood reacquired 20,000 shares of its common stock for $16 per share. Oakwood uses the cost method to account for treasury stock. On April 27, 2019, Oakwood sold 500,000 shares (previously unissued) of $10 par value common stock to the public at $17 per share. On June 18, 2019, Oakwood declared a cash dividend of $1 per share of common stock, payable on July 13, 2019, to shareholders of record on July 2, 2019. On November 9, 2019, Oakwood sold 10,000 shares of treasury stock for $21 per share. On December 14, 2019, Oakwood declared the yearly cash dividend on preferred stock, payable on January 14, 2020, to shareholders of record on December 31, 2019. On January 18, 2020, before the books were closed for 2019, Oakwood became aware that the ending inventories at December 31, 2018, were understated by $300,000 (the after-tax effect on 2018 net income was $210,000). The appropriate correcting entry was recorded the same day. After correcting the beginning inventory, net income for 2019 was $4,500,000. Required: Question Content Area 1. Prepare a statement of retained earnings for Oakwood for the year ended December 31, 2019. Assume that only single-period financial stat
Answers
Retained earnings, December 31, 2018 $6,470,000
Add: Net income December 31, 2019 $4,500,000
Less: Preferred stock dividends declared and paid $4,500,000
Less: Common stock dividends declared and paid $1,000,000
Total adjustments $3,500,000
Retained earnings, December 31, 2019 $9,970,000
How do we compute the statement of retained earnings?The statement shows changes in the balance of retained earnings account during the year. The retained earnings balance at the beginning of the year is adjusted for the net income earned during the year and for the dividends declared and paid to the shareholders.
In this case:
retained earnings balance at December 31, 2018 was $6,470,000,net income for the year ended December 31, 2019 was $4,500,000, declared and paid preferred stock dividends of $4,500,000,common stock dividends of $1,000,000 during the year.So, total adjustments to the retained earnings balance:
= $4,500,000 + $1,000,000 - $4,500,000.
= $3,500,000
After adjustment on net income and dividends, the retained earnings balance at December 31 2019 is:
= $6,470,000 + $4,500,000 - $3,500,000
= $9,970,000
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The variables x and y vary inversely. Use the given values to write an equation relating x and y. Then find y when x = −3.
x = −4, y = −6
The equation is y =
Answers
The value of y for the inverse variation when x = -3 is derived to be equal to -8, and the equation that relating x and y is: y = 24/x.
What is inverse variationInverse variation is a mathematical relationship between two variables, in which an increase in one variable leads to a proportional decrease in the other variable. Mathematically, inverse variation can be expressed as y = k/x, where y and x are the two variables, k is a constant of proportionality, and the product of y and x is always equal to k.
when x = -4 and y = -6, then k is derived as:
-6 = k/-4
k = 24 {cross multiplication}
equation relating x and y is:
y = 24/x
when x = -3, y is derived as:
y = 24/-3
y = -8
Therefore, the value of y for the inverse variation when x = -3 is derived to be equal to -8, and the equation that relating x and y is: y = 24/x.
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Error Analysis Taniya incorrectly says that the solution of the system of equations is (-3,-2). What is the correct solution?
What error might Taniya have made?
6g-3h=-3
5=h-4g
Answers
The correct solution for the given equation 6g-3h = -3 is (-4, -7) respectively.
What are equations?A mathematical assertion that proves the equality of two mathematical expressions is what an equation in algebra means.
For instance, the expressions 3x + 5 and 14 make up the equation 3x + 5 = 14, with the 'equal' sign separating them.
So, we have the equation:
6g-3h = -3
Solution: (-3, -2)
Solve as follows:
6(-3)-3(-2) = -3
-18 + 6 = -3
-12 ≠ -3
Wrong solution.
Then, the correct solution could be:
6g-3h = -3
Solution: (-4, -7)
Solve as follows:
6g-3h = -3
6(-4)-3(-7) = -3
-24 + 21 = -3
-3 = -3
Correct solution.
Therefore, the correct solution for the given equation 6g-3h = -3 is (-4, -7) respectively.
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SARA WANTS TO SAVE $1600 IN 8 MONTHS, HOW MUCH DOES SARA NEEEDS TO SAVE MONTHLY?
Answers
Answer:
$200
Step-by-step explanation:
Just divide 1600 by 8
1600 ÷ 8 = 200
Answer:
sara needs to save 200 monthly
Step-by-step explanation:
i just divided 1600 by 8.
hope u have a great day!!
1,436,492÷2 with steps please
Answers
The expression 1,436,492÷2 has a value of 718246 when evaluated because we divided the numbers
Evaluating the expression 1,436,492÷2From the question, we have the following parameters that can be used in our computation:
1,436,492÷2
The above statement is a quotient expression that divide the values of 1,436,492 and 2
Also, there is no need to check if there are like terms in the expression or not
This is because we are dividing the factors
So, we have
1,436,492÷2 = 718246
This means that the value of the expression is 718246
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Kendrick is excited to have fresh basil at home. He buys a 4-inch-tall basil plant and puts it on his kitchen windowsill. A month later, the plant is a whole foot taller! One night, Kendrick wants to add some basil to his pasta, so he cuts off 6 inches. How many inches tall is his basil plant now?
Answers
Kendrick's basil plant is now 6 inches tall.
Define differenceIn mathematics, the term "difference" can refer to a variety of concepts depending on the context. Here are some common uses of the term "difference" in mathematics:The difference between two numbers is the result of subtracting one number from the other. For example, the difference between 5 and 3 is 2.The difference between two sets is the set of elements that are in one set but not the other. For example, the difference between the sets {1, 2, 3} and {2, 3, 4} is {1}.If the basil plant was originally 4 inches tall and grew to a height of 1 foot (12 inches), then its total growth is 12 - 4 = 8 inches.
If Kendrick then cuts off 6 inches from the plant, the new height of the plant is 12 - 6 = 6 inches.
Therefore, Kendrick's basil plant is now 6 inches tall.
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28 + 24 distribute property
Answers
Answer:
24 + 28
2*2*2*3 + 2*2*7 [prime factors]
You may distribute any common ones, for example:
4(6+7) [that is, 2*2*(2*3 + 7)
2(12+14)
Given f (x) = - 5x - 4 solve for when x f(x) = 1
Answers
Thus, the value of x for the given output of the function f(x) = 1 is found as: x = -1.
Explain about the domain of function:A function is a mathematical construct that receives an input, processes it according to a rule, and then outputs the outcome.
Graphing and algebra are the two techniques used to determine a function's domain. Use the equation to consider inputs that would result in an undefined value, including such fractions and square roots, in order to obtain the domain algebraically. Decide where the function is graphed and note the x-values of the region(s) to locate it by graphing.Given that:
f (x) = - 5x - 4 solve for when f(x) = 1Put f(x) = 1 in the given function to find x.
f (x) = - 5x - 4
1 = - 5x - 4
Isolating the x
-5x = 1 + 4
-5x = 5
x = 5/ -5
x = -1
Thus, the value of x for the given output of the function f(x) = 1 is found as: x = -1.
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lin's family needs to travel 325 miles to teach their grandmother's house.
B. how far have they traveled when they completed 72 percent of the trips distance
Answers
They have traveled 234 miles when they completed 72 percent of the trips distance
How far have they traveled when they completed 72 percent of the trips distance from the question, we have the following parameters that can be used in our computation:
Distance = 325 miles
Distance completed = 72%
Using the above as a guide, we have the following:
Distance completed = 72% * Total distance
Substitute the known values in the above equation, so, we have the following representation
Distance completed = 72% * 325 miles
Evaluate
Distance completed = 234 miles
Hence, the distance completed = 234 miles
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[tex]7\sqrt[3]{7}-\sqrt[3]{128}[/tex]
Answers
The expression 7∛7 - ∛128 is: 49∛7 - 8∛2.
What is the expression?We can simplify this expression using the fact that ∛(a * b) = ∛a * ∛b and ∛(a^3) = a.
First, let's factor ∛128 into prime factors: ∛128 = ∛(2^7) = 2 * ∛(2^5) = 2 * ∛(32).
Next, we can simplify 7∛7 as much as possible:
7∛7 = ∛(7^3) * ∛7 = 7∛(7^2) * ∛7 = 7 * 7∛7.
Now we can substitute these simplifications into the original expression:
7∛7 - ∛128 = 7 * 7∛7 - 2 * ∛32
We can simplify ∛32 as follows:
∛32 = ∛(2^5) = 2 * ∛(2^2) = 4∛2
Now, we can substitute this back into the expression:
7 * 7∛7 - 2 * ∛32 = 7 * 7∛7 - 2 * 4∛2
= 49∛7 - 8∛2
So the simplified expression is 49∛7 - 8∛2.
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In the figure below, find the exact value of x. (Do not approximate your answer.)
6
Answers
The value of x is given as follows:
x = 2.25.
What is the geometric mean theorem?The geometric mean theorem states that the length of the altitude drawn from the right angle of a triangle to its hypotenuse is equal to the geometric mean of the lengths of the segments formed on the hypotenuse.
From the image at the end of the answer, we have that 3 is the geometric mean of 4 and x, hence the value of x is obtained as follows:
4x = 3²
4x = 9
x = 9/4
x = 2.25.
Missing InformationThe image is given at the end of the answer.
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Greg started to run on a treadmill after setting it’s timer for 98 minutes the display says that he has finished 57% of his run how many minutes have gone by
Answers
A total of 55.86 minutes have gone by since Greg started his run on the treadmill.
How many minutes have gone byIf Greg has completed 57% of his run, it means he has 43% of his run remaining.
To find out how many minutes have gone by, we can use proportions.
Let's say x is the total number of minutes Greg needs to complete his run:
x = 57% * 98 minutes
Evaluate
x = minutes
Therefore, approximately 55.86 minutes have gone by since Greg started his run on the treadmill.
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show that 3x4 1 is o(x4∕2) and x4∕2 is o(3x4 1).
Answers
3[tex]x^4[/tex] + 1 is equivalent to [tex]x^{(4/2)}[/tex] in terms of asymptotic growth rate. The value of 3[tex]x^4[/tex] + 1 is O([tex]x^{(4/2)}[/tex]) and [tex]x^{(4/2)}[/tex] is O(3[tex]x^4[/tex] + 1).
To show that 3[tex]x^4[/tex] + 1 is O([tex]x^{(4/2)}[/tex]), we need to find a constant C and a value of x such that:
|3[tex]x^4[/tex] + 1| <= C|[tex]x^{(4/2)}[/tex]|
For x >= 1, we can say that:
3[tex]x^4[/tex] + 1 <= 4[tex]x^4[/tex]
Taking the square root of both sides, we get:
sqrt(3[tex]x^4[/tex] + 1) <= 2x²
Thus, we can choose C = 2 and x0 = 1, and we have:
|3[tex]x^4[/tex] + 1| <= 2|[tex]x^{(4/2)}[/tex]| for all x >= 1
Therefore, 3[tex]x^4[/tex] + 1 is O([tex]x^{(4/2)}[/tex]).
To show that [tex]x^{(4/2)}[/tex] is O(3[tex]x^4[/tex] + 1), we need to find a constant C and a value of x such that:
|[tex]x^{(4/2)}[/tex]| <= C|3[tex]x^4[/tex] + 1|
For x >= 1, we can say that:
[tex]x^{(4/2)}[/tex] <= x²
Thus, we can choose C = 1 and x0 = 1, and we have:
|[tex]x^{(4/2)}[/tex]| <= |3[tex]x^4[/tex] + 1| for all x >= 1
Therefore, [tex]x^{(4/2)}[/tex] is O(3[tex]x^4[/tex] + 1).
Since both 3[tex]x^4[/tex] + 1 is O([tex]x^{(4/2)}[/tex]) and [tex]x^{(4/2)}[/tex] is O(3[tex]x^4[/tex] + 1).
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Suppose that Leni and Thom are lawyers and each has a taxable income of $230,000. They can't decide if they should be married in December or in January. If they marry in December, then they are considered married for the entire tax year and could file a joint return. If they get married in January of the next year, they would file a separate return each as a single taxpayer. Examine Schedules X and Y-1. Which filing status would yield the lower tax? If so, by how much? is there really a marriage penalty?
Answers
Filing separate returns as single taxpayers would yield a lower tax liability for Leni and Thom, by an amount of $134,722.50 - $42,698.50 = $92,024.50.
What is tax liability?Tax liability is the sum that a person or business owes the government in taxes. Although it frequently consists of sales tax and capital gains tax, it is typically calculated as a percentage of one's income.
To determine which filing status would yield the lower tax for Leni and Thom, we need to compare the tax liability for each filing status. We will use the 2021 tax brackets and tax rates provided in Schedules X and Y-1.
Assuming that Leni and Thom have no dependents, the taxable income for each of them is $230,000.
If they file a joint return for the entire year (i.e., they get married in December), their taxable income would be $460,000, which falls in the 35% tax bracket. Using the tax table in Schedule X, their tax liability would be:
$24,800 + 35% of the amount over $171,050 = $24,800 + 35% x ($460,000 - $171,050) = $24,800 + $109,922.50 = $134,722.50
If they file separate returns as single taxpayers for the entire year (i.e., they get married in January), each of their taxable incomes would be $230,000, which also falls in the 35% tax bracket. Using the tax table in Schedule Y-1, their tax liability would be:
$14,125 + 35% of the amount over $209,425 = $14,125 + 35% x ($230,000 - $209,425) = $14,125 + $7,224.25 = $21,349.25
Therefore, filing separate returns as single taxpayers would yield a lower tax liability for Leni and Thom, by an amount of $134,722.50 - $42,698.50 = $92,024.50. This is known as the "marriage penalty," where couples with similar incomes who file jointly pay more in taxes than they would if they were single and filing separately.
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A research survey of 2,006 public and private school students in the United States (grades
10-12) between April 12 and June 12, 2016 asked students if they agreed with the Statement, "If I make a mistake, I try to figure out where I went wrong." The survey found that 86% students agreed with the statement. The margin of error for the survey is ‡3.7%. Determine the range of surveyed students that agreed with the statement.
Answers
Answer: the range of surveyed students that agreed with the statement is between 82.3% and 89.7%.
Step-by-step explanation: The present study's margin of error has been estimated as ±3.7%. This indicates that the reported proportion of 86% of students who concurred with the statement may exhibit a margin of error of ±3.7%, encompassing potential values lower or higher than the reported percentage figure.
To ascertain the range of students surveyed who assented to the given statement, it is essential to ascertain the uppermost and lowermost attainable percentages that the factual percentage could reveal.
The maximum attainable percentage is equivalent to the sum of 86% and 3.7%, which yields a total of 89.7%.
The minimum percentage attainable has been calculated to be 82.3% by subtracting 3.7% from the initial value of 86%. Such a formulation adheres to the precision and technical accuracy expected in academic writing.
i need help please help me
Answers
Answer:
Step-by-step explanation:
THE ANSWER IS 21
ΔDEF ∼ ΔABC. What is the sequence of transformations that maps ΔABC to ΔDEF?
Answers
The sequence of transformation that maps ΔABC to ΔDEF is a rotation of 90° about the origin and a translation 2-units down.
What is rotation?An thing rotates when it moves about its own axis. This can be used to describe the rotation of natural items like wheels and gears as well as the rotation of celestial bodies like planets and stars. A fundamental idea in physics, rotation is used to describe a variety of motions.
What is translation?The act of shifting an object from one point to another without altering its size, shape, or orientation is referred to as translation. The coordinates of each point in the object are adjusted by a set amount to achieve this. In geometry and computer graphics, translation is a type of transformation that is frequently used to reposition objects on a two-dimensional plane or in three-dimensional space. In physics, the term "translation" can also refer to an object moving straight ahead without rotating or deforming.
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Solve each equation for x. X2+ax-3ab-3bx=0
Answers
The solutions of equation for x are (3b + √(9b² + 12ab(a - b))) / 2a and (3b - √(9b² + 12ab(a - b))) / 2a
To solve the equation x² + ax - 3ab - 3bx = 0 for x, we can use the quadratic formula, which is given by:
x = (-b ± √(b² - 4ac)) / 2a
In this situation, the quadratic equation's coefficients are:
a = a
b = -3b
c = -3ab
x = (3b ± √(9b² + 12ab(a - b))) / 2a
Therefore, the solutions for x are:
x = (3b + √(9b² + 12ab(a - b))) / 2a
x = (3b - √(9b² + 12ab(a - b))) / 2a
Therefore, the solutions of equation for x are (3b + √(9b² + 12ab(a - b))) / 2a and (3b - √(9b² + 12ab(a - b))) / 2a
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Answer:
Step-by-step explanation:
bro its just -14/a
that simple
to be honest if ur here ur not looking for "how to solve the question ur just looking for the answers
its just -14/a
. provide a description for the standard error. what does it measure? b. what assumption are we making when calculating the standard error of the mean? 372 c. what would you recommend the researchers do next to reduce the standard error of their estimate of the mean home range size?
Answers
The standard error measures the variability of the sample mean from the true population mean. It represents the standard deviation of the sampling distribution of the mean and gives an estimate of how much the sample means will vary from one sample to another.
b. When calculating the standard error of the mean, we assume that the sample was randomly selected from the population, and that the sample size is large enough (usually, n > 30) for the central limit theorem to apply.
c. To reduce the standard error of their estimate of the mean home range size, researchers could increase the sample size, which will decrease the standard error by reducing the variability of the sampling distribution of the mean.
Alternatively, they could improve the precision of their measurements or reduce measurement errors to decrease the standard deviation of the sample, which will also decrease the standard error.
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Consider a competitive market where there are two types of firms, Type A and Type B, with total cost functions TC4(q) = 1+2q+q? TCB(q) = 6 + 2q +3q2 (a) Derive the short-run supply curve for each firm type (b) What is the short-run market supply, if there are 10 Type A firms, and 6 Type B firms? (c) What is total quantity produced when p=5? (d) How does your answer at (c) change if we consider long run supply rather than short run? Here, assume again that p=5 and that there are 10 Type A firms and 6 Type B firms.
Answers
The total quantity produced when p = 5 is 26 in the long run.
In the short run, each firm will produce where its marginal cost equals the market price, which we'll denote as p.
So, for Type A firms, the short-run supply curve is:
q4(p) = (p-2)/2
And for Type B firms, the short-run supply curve is:
qB(p) = (p-2)/6
The short-run market supply is simply the sum of the quantities supplied by each type of firm at a given price level. So, if there are 10 Type A firms and 6 Type B firms, the short-run market supply at a price level of p is:
Qs(p) = 10q4(p) + 6qB(p)
= 10(p-2)/2 + 6(p-2)/6
= 8p - 20
The total quantity produced when p=5, we can substitute p=5 into the market supply equation we just derived:
Qs(5) = 8(5) - 20
= 20
So, the total quantity produced when p=5 is 20.
The long run, firms can enter or exit the market, and as a result, the number of firms in each market may change.
In this case, we'll assume that the number of Type A and Type B firms can adjust freely in the long run, and that each firm earns zero economic profit in the long run.
If there are zero economic profits, each firm's total revenue (TR) must equal its total cost (TC), which means that price must equal average total cost (ATC).
For Type A firms, ATC4(q) = TC4(q)/q = 1/q + 2 + q, so:
5 = 1/q + 2 + q
Rearranging and solving for q, we get:
q4 = 2
So each Type A firm will produce 2 units of output in the long run.
For Type B firms, ATCB(q) = TCB(q)/q = 6/q + 2 + 3q, so:
5 = 6/q + 2 + 3q
Rearranging and solving for q, we get:
qB = 1
So each Type B firm will produce 1 unit of output in the long run.
If there are 10 Type A firms and 6 Type B firms, the total quantity produced in the long run when p=5 is:
Qlr = 10q4 + 6qB
= 10(2) + 6(1)
= 26
So, the total quantity produced when p = 5 is 26 in the long run.
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if the circumference of a circle is four and the radius is two what is the diameter and area
Answers
If the circumference of a circle is 4, we can use the formula for the circumference of a circle, C=2πr, where C is the circumference, r is the radius, and π is the mathematical constant pi.
Substituting C=4 and r=2 into the formula, we have:
4 = 2π(2)
Solving for π, we get:
π = 4/(2*2) = 1
Therefore, the value of pi is 1, which is not correct. This means that there is an error in the given information. The circumference of a circle cannot be 4 when the radius is 2, as the circumference must be greater than the diameter (which is twice the radius).
As a result, it is not possible to accurately determine the diameter or area of the circle with the given information.
~~~Harsha~~~
we can use a normal probability model to represent the distribution of sample means for which of the following reasons? check all that apply. group of answer choices the sample is randomly selected the distribution of the variable in the population is normally distributed the sample size is large enough to ensure that sample means will be normally distributed flag question: question 2 question 23 pts what is the standard error for the distribution of sample means? [ select ] what is the z-score for the observed sample? [ select ] what is the probability that a random sample of 100 bags has a mean weight less than 33.6 grams? [ select ] flag question: question 3 question 31 pts does the sample provide strong evidence that the mean weight of the bags is lower than the 35.6 grams listed on the package? group of answer choices yes, because a random sample of 100 bags with a mean weight below 33.6 grams is very unlikely if the individual bags have a mean weight of 35.6 grams. no, because random samples of 100 bags will have mean weights that vary. a mean weight around 33.6 grams is not unusual. no, because the mean weight of the sample is only off by 2 grams. yes, because 33.6 is less than 35.6 grams flag question: spacer the annual salary of teachers in a certain state has a mean of $ 54,000 and standard deviation of $ 5,000 . use this information to answer the questions below. flag question: question 4 question 41 pts what is the probability that a randomly selected teacher from this state has an annual salary of $55,500 or more. group of answer choices we cannot find the probability with the given information. flag question: question 5 question 51 pts what is the probability that the mean annual salary of a random sample of 5 teachers from this state is more than $60,000? group of answer choices it is impossible to tell because normality conditions are not met flag question: question 6 question 61 pts what is the probability that the mean annual salary of a random sample of
Answers
We can use a normal probability model to represent the distribution of sample means when the sample size is large enough to ensure that sample means will be normally distributed, option (C) is correct.
The central limit theorem (CLT) states that when sample sizes are sufficiently large (typically, n > 30), the distribution of sample means will be approximately normal, regardless of the distribution of the variable in the population.
This is because as the probability of sample size increases, the sample mean becomes a more reliable estimate of the population mean, and the variability in the sample means decreases. This results in a distribution that is bell-shaped and symmetric, similar to a normal distribution, option (C) is correct.
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– The question is inappropriate, The correct question is:
We can use a normal probability model to represent the distribution of sample means for which of the following reasons? check all that apply.
A) the sample is randomly selected
B) the distribution of the variable in the population is normally distributed
C) the sample size is large enough to ensure that sample means will be normally distributed flag –
What number should be written in the penultimate line of the script instead of -1 for the function f to be linear? justify
Answers
For the function f to be linear, the number that should be written in the penultimate line of the script should be 0 because a linear function has a constant slope and no term with a power higher than 1.
In the general form of a linear function
y = mx + b
where m is the slope and b is the y-intercept.
Since the function f is defined as
f(x) = x² + mx + b
we can see that it is a quadratic function.
Therefore, to make it linear, we need to eliminate the x² term.
To eliminate the x² term, we can set the coefficient of x² to 0. Since the coefficient of x² is 1, we can subtract x² from both sides of the equation
f(x) = x² + mx + b
f(x) - x² = mx + b
Now, we have a linear function since the term with x² has been eliminated. Thus, the number that should be written in the penultimate line of the script is 0, which will make the coefficient of x² equal to 0 and eliminate the quadratic term.
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In the equation A = P(1 + r)t, A is the total amount, P is the principal amount, r is the annual interest rate,and t is the time in years. Which statement correctly relates information regarding the annual interestrate for each given equation?
(A) For A = P(1.025), the principal amount of money is increasing at a 25% interest rate.
(B) For A = P(1.0052), the principal amount of money is increasing at a 52% interest rate.
(C) For A = P(0.86)t, the principal amount of money is decreasing at a 14% interest rate.
(D) For A = P(0.68)t, the principal amount of money is decreasing at a 68% interest rate.
Answers
The correct statement regarding the annual interest rate for the given equations is (A) For A = P(1.025), the principal amount of money is increasing at a 2.5% interest rate.
What is an equation?
An equation is a mathematical statement that shows that two expressions are equal. It consists of two sides separated by an equals sign (=).
In the equation A = P(1 + r)t, the annual interest rate is represented by the variable "r". It is not correct to directly interpret the value of (1 + r) as the interest rate, as it represents the factor by which the principal amount is multiplied over time to yield the total amount.
Let's analyze each given equation to see which statement correctly relates information regarding the annual interest rate:
(A) For A = P(1.025), the equation does not have a term for time (t), so it cannot represent the growth of a principal amount over time. It simply represents the total amount (A) as 102.5% of the principal amount (P), which means that the interest rate is 2.5% per year.
(B) For A = P(1.0052), similar to the previous equation, this equation does not have a term for time (t), so it cannot represent the growth of a principal amount over time. It simply represents the total amount (A) as 100.52% of the principal amount (P), which means that the interest rate is 0.52% per year.
(C) For A = P(0.86)t, the value of (0.86) represents the factor by which the principal amount is multiplied over time to yield the total amount. Since (0.86) is less than 1, it means that the principal amount is decreasing over time, not increasing. The interest rate in this case is -14% per year (negative because the principal amount is decreasing).
(D) For A = P(0.68)t, similar to the previous equation, the value of (0.68) represents the factor by which the principal amount is multiplied over time to yield the total amount. Since (0.68) is less than 1, it means that the principal amount is decreasing over time, not increasing. The interest rate in this case is -32% per year (negative because the principal amount is decreasing).
Therefore, the correct statement regarding the annual interest rate for the given equations is:
(A) For A = P(1.025), the principal amount of money is increasing at a 2.5% interest rate.
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