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Lisa [10]
3 years ago
15

A researcher plans to conduct an experiment to test whether a cup of hot milk at night helps people fall asleep faster than usua

l. In this study, the independent variable is ________
Mathematics
1 answer:
Kitty [74]3 years ago
6 0

Answer:

A cup of hot milk

Step-by-step explanation:

to be able to identify what is an independent or a dependent variable, one must understand the meaning. an independent variable is referred to as something/factors that the researcher can change or what changes on its own. while, dependent variable is what changes as a result of changes in the independent variable. in this situation, the dependent variable is the time it takes for fall asleep.

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A cylindrical tank has a height of 10 feet and a radius of 4 feet. Jane fills the tank with water at a rate of 8 cubic feet per
ki77a [65]

<u>Given</u>:

A cylindrical tank has a height of 10 feet.

The radius of the cylindrical tank is 4 feet.

Jane fills the tank with water at a rate of 8 cubic feet per minute.

We need to determine the time it will take for Jane to completely fill the tank without overflowing it.

<u>Volume of the cylinder:</u>

The volume of the cylinder can be determined using the formula,

V=\pi r^2 h

Substituting the values, we have;

V=(3.14)(4)^2(10)

V=(3.14)(16)(10)

V=502.4

Thus, the volume of the cylinder is 502.4 cubic feet.

<u>Time taken:</u>

The time taken can be determined using the formula,

Time = \frac{Volume}{Rate \ of\  filling}

Substituting the values, we have;

Time = \frac{502.4}{8}

Time = 62.8

Thus, Jane takes 62.8 minutes to completely fill the tank without overflowing it.

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3 years ago
What is the fraction ten fourteenths in it simplest form?
nadya68 [22]
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3 years ago
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jekas [21]

Answer: last option.

Step-by-step explanation:

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4 years ago
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Answer:

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