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Nastasia [14]
3 years ago
6

Suppose 42 gallons of water came out of a pipe in 6 minutes. What was the rate in gallons per minute?

Mathematics
2 answers:
lyudmila [28]3 years ago
5 0

Answer:

7 gallons per minute.

Step-by-step explanation:

42 / 6 = 7

lawyer [7]3 years ago
5 0

Answer:

7 gallons per minute.

Step-by-step explanation:

42 divided by  6 = 7

and if you multiply 6 and 7 you will get 42

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Step-by-step explanation:

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2 years ago
If 10 cups of ice cream are separated into 1/5 cup sample serving how many samples can be served​
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50 Samples

Step-by-step explanation:

Divide the total cups of ice cream (10) by the sample amount (1/5)

\frac{10}{\frac{1}{5} }

10 ÷ 1/5

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\frac{10}{1}*\frac{5}{1}  = 50

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Suppose the graph of a cubic polynomial function
ivann1987 [24]

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(1/6)(x-2)(x-3)(x-5)

Step-by-step explanation:

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3 years ago
In a sample of 230 teenagers, 202 would like to have smaller class sizes at their school. Find the sample
marishachu [46]

Answer:

The sample proportion is 0.88.

The margin of error is of 0.04.

The interval likely to contain the true population proportion is (0.84,0.92).

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence level of 1-\alpha, we have the following confidence interval of proportions.

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which

z is the z-score that has a p-value of 1 - \frac{\alpha}{2}.

Margin of error:

The margin of error is of:

M = z\sqrt{\frac{\pi(1-\pi)}{n}}

Sample of 230 teenagers, 202 would like to have smaller class sizes at their school.

This means that n = 230, and that the sample proportion is:

\pi = \frac{202}{230} = 0.88

The sample proportion is 0.88.

Standard 95% confidence level

So \alpha = 0.05, z is the value of Z that has a p-value of 1 - \frac{0.05}{2} = 0.975, so Z = 1.96.

Margin of error:

M = z\sqrt{\frac{\pi(1-\pi)}{n}}

M = 1.96\sqrt{\frac{0.88*0.12}{230}}

M = 0.04

The margin of error is of 0.04.

Confidence interval:

Sample proportion plus/minus margin of error. So

0.88 - 0.04 = 0.84

0.88 + 0.04 = 0.92

The interval likely to contain the true population proportion is (0.84,0.92).

5 0
3 years ago
A cosine function has a period of 4, a maximum value of 20, and a minimum value of 0. The function is a not a reflection of its
3241004551 [841]

Answer:

Step-by-step explanation:

You'll need to find a way to share the graph or graphs associated with this problem.

The period is 4.  The relationship between period and b (the coefficient of the independent variable of the cosine function) is (period) =(2π.b).  Given that the period here is 4,

       2π                          2π

4 = ---------, and so b = ------- = π/2.

                                       4

So now our y  = a*cos (bx + c) becomes

                    π

y = 10*cos (------x + 0 + 10

                     2

The horizontal center line of this cosine curve is y = 10.  The maximum value of the curve is 20, which is 10 + 10, and the minimum value is 0, which is 10 - 10.

                           

5 0
2 years ago
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