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navik [9.2K]
3 years ago
12

A researcher wants to examine the effect of caffeine on sleep. She splits participants into two groups. The first group drinks c

affeinated-coffee at 8pm and the second group drinks decaf-coffee at 8pm. The researcher records what time participants fall asleep. What is the independent variable
Mathematics
1 answer:
Oduvanchick [21]3 years ago
8 0

Answer:

Type of coffee

Step-by-step explanation:

First, that is, it is the independent variable.

It is the variable that does not depend on another value or other circumstance, it is the variable that generally would be the options to choose from and depending on what is chosen, different results are obtained.

In this case, the variable that has this behavior is the type of coffee that will be taken, whether it is caffeinated or decaffeinated coffee.

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Answer: 250 cameras; $10,000 spent; 15,000 made

Step-by-step explanation:

1) FInd the profit. 60-40=20. This means that they make a profit of $20 per camera.

2) How many cameras to break even? 5000/20=250. The answer is 250 cameras!

3) How much money has been spent? 40x250= $10000 spent.

4) How much money has been made? 60x250= $15000 made.

<em>Hope this helps!</em>

6 0
2 years ago
Order from least to greatest<br> 45<br> 11, 45, 520, 54
pentagon [3]

Answer: 11, 45, 45, 54, 520

4 0
3 years ago
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zubka84 [21]

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C) The scale factor is 2

Step-by-step explanation:

The side length of the bigger pentagon is 2 times bigger than the smaller one, so C is correct.

6 0
3 years ago
I just need help with the second one.
NISA [10]

Answer:

(90 - y) °

Step-by-step explanation:

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7 0
3 years ago
Given the graphs of f(x) = -x + 2 and g(x) = 5x – 4, what is the solution to the equation f(x) = g(x)?
Stels [109]

Answer:

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Step-by-step explanation:

f(x) = g(x)

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(divide both sides by 6)

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