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kondor19780726 [428]
2 years ago
11

Please help!!!!!!!!!!

Mathematics
1 answer:
Dmitriy789 [7]2 years ago
3 0

Answer:

1. c.

2. a.

3. b.

Step-by-step explanation:

Remember f(x) = y

1. f(x) = y = 2/5x+8

2. f(x)= y - 8 = x => y = 8 +x

3. f(x) = y = x - 8

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One of the bottles has a greater total volume than the other. for example, if one bottle is 20 ounces and the other is 100 ounces, when the 100 ounce bottle is 3/4 full there are 75 ounces of fluid inside which is more than the total amount of fluid in the full 20 ounce bottle.
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3 years ago
A clothing store spends $10 for each shirt it produces and has fixed costs of $400. If the store makes 50 shirts, how much shoul
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Answer:

b)$18

Step-by-step explanation:

The break even point is when the revenue is equal to the cost.

Revenue:

How much the store earns for each shirt.

We want to find the price of each shirt, and 50 shirts will be made.

So the revenue function is:

R = 50p

In which p is the price.

Costs:

A clothing store spends $10 for each shirt it produces and has fixed costs of $400.

So for 50 shirts:

400 + 50*10 = 900

Breakeven

Revenue equals cost

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So the correct answer is:

b)$18

8 0
3 years ago
Which of the following equations best represents the regression line for the data given in the
True [87]

The regression equation for the data given is y= -8.57 -2.31x

Step-by-step explanation:

The first step is to form a table as shown below;

x           y          xy         x²         y²

1            4           4          1          16

2            1            2          4         1

3            5          15         9         25

4             10         40        16       100

5             16         80        25      256

6              19        114       36        361

7               15       105       49       225

28             60       360      140     984  ------sum

A linear regression equation is in the form of y=A+Bx

where ;

x=independent variable

y=dependent variable

n=sample size/number of data points

A and B are constants that describe the y-intercept and the slope of the line

Calculating the constants;

A=(∑y)(∑x²) - (∑x)(∑xy) / n(∑x²) - (∑x)²

A=(60)(140) - (28)(360)  / 7(140)-(28)²

A=8400 - 10080 /980-784

A= -1680/196

A= - 8.57

B= n(∑xy) - (∑x) (∑y) / n(∑x²) - (∑x)²

B= 7(360)-(28)(60) / 7(60) - (28)²

B=2520 - 1680 /420-784

B=840/-364

B= -2.31

y=A+Bx

y= -8.57 -2.31x

Learn More

Regression equation :brainly.com/question/12280902

Keywords : equations, regression line, data

#LearnwithBrainly

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3 years ago
What is x ! ANSWEE ASAP I WILL GIVE BRAINLIEST
Nimfa-mama [501]
There is no picture attached so not sure what you are talking about
5 0
2 years ago
Read 2 more answers
Statistics show that about 42% of Americans voted in the previous national election. If three Americans are randomly selected, w
MrRa [10]

Answer:

19.51% probability that none of them voted in the last election

Step-by-step explanation:

For each American, there are only two possible outcomes. Either they voted in the previous national election, or they did not. The probability of an American voting in the previous election is independent of other Americans. So we use the binomial probability distribution to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

In which C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

And p is the probability of X happening.

42% of Americans voted in the previous national election.

This means that p = 0.42

Three Americans are randomly selected

This means that n = 3

What is the probability that none of them voted in the last election

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P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

P(X = 0) = C_{3,0}.(0.42)^{0}.(0.58)^{3} = 0.1951

19.51% probability that none of them voted in the last election

6 0
2 years ago
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