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3 years ago

10

A truck rental company rents a truck for one day by charging $39 plus $1 per mile. Write a linear model that relates the cost C,

in dollars, off the renting truck to the number of M miles driven.

1 answer:

Anika [276]3 years ago

6 0

Answer:

1m+39c=y

Step-by-step explanation:

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A school has 3400 students. They conduct a random sample of 124 students and find that 38 of them hate the school.

Contact [7]

Answer:

a) We need a sample size of at least 2401.

b) We need a sample size of at least 1936.

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of , and a confidence level of , we have the following confidence interval of proportions.

In which

z is the zscore that has a pvalue of .

The margin of error is:

95% confidence level

So , z is the value of Z that has a pvalue of , so .

(a) you are unwilling to predict the proportion value at your school and

We use , which is when we are going to need the largest sample size.

So we need to find We need a sample size of at least 2401.

(b) you use the results from the surveyed school as a guideline.

Now the same calculation, just with . So

We need a sample size of at least 1936.

5 0

3 years ago

Please show your work!<br> 25% of 80

spin [16.1K]

Answer:

20

Step-by-step explanation:

25% change to .25

.25 x 80

Just solve 25 x 80 which equals 2000

then move decimal over twice giving you 20.00 or 20

4 0

3 years ago

Read 2 more answers

(r-1)^2<br> this is to the power of two

mars1129 [50]

<span>Use formula: (a-b)</span>² = a² - 2ab + b²<span>

(r-1)</span>² = r² - 2r + 1

6 0

4 years ago

Read 2 more answers

Draw a number line and mark on it, if possible, all described points. Numbers that are larger than 2 and smaller than 5.

Flura [38]

Step-by-step explanation:

The number line below describes number larger than 2.

This can be written as {x: x > 2}.

Note that the indicator on 2 is not shaded, this shows that 2 is not included in the set.

..|......|......|......|......|......|......|......|......|......|..

-2....-1.....0....1.....2.....3....4.....5....6.....7

............................O-------------------------->

.......................................(x > 2)

The number line below describes number smaller than 5. This can be written as {x: x < 5}. 5 is not included in this set neither, so, the indicator is also not shaded.

..|......|......|......|......|......|......|......|......|......|..

-2....-1.....0....1.....2.....3....4.....5....6.....7

<-------------------------------------O

...............(x < 5)

LOOK AT THIS EXAMPLE BELOW

..|......|......|......|......|......|......|......|......|......|..

-2....-1.....0....1.....2.....3....4.....5....6.....7

<--------------------------------•

...............(x ≤ 4)

Note that the indicator on 4 is shaded black. It shows that 4 is included in the set.

6 0

3 years ago

Gotta estimate them, anyone know

Mariulka [41]

Answer:

22

Step-by-step explanation:

THE answer to 22 is 30 1/8

5 0

3 years ago