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Alecsey [184]
3 years ago
14

a lab researcher wants to find out whether mice will run through a maze quicker during the day or at night, after training. Desc

ribe what is being measured in this experiment and what variable is being manipulated?
Mathematics
1 answer:
Mademuasel [1]3 years ago
7 0
The goal of any experiment is to test the hypothesis by adjusting the independent variables so you can see the trend of the dependent variable that you want to investigate. The independent variables are parameters that you manipulate. In this experiment, that would be the time of day. You have two independent variables: night and day. The speed of the mice is the parameter that you will measure. Once you do these set-up, you can conclude in the end the effect of the time of day on the speed of the mice. 
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PLEASE HELP ASAP
Leno4ka [110]

Answer:

x=10

Step-by-step explanation:

we know that

If the lines m and n are parallel

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130\° = (8x+50)\° ----> by corresponding angles

solve for x

8x=130-50\\8x=80\\x=10

7 0
3 years ago
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Step-by-step explanation:

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3 0
3 years ago
Jarred sells DVDs. His inventory shows that he has a total of 3,500 DVDs. He has 2,342 more contemporary titles than classic tit
Mamont248 [21]
Here, x - y = 2342
x = 2342 + y

Substitute this value into first equation, 
2342 + y + y = 3500
2y = 3500 - 2342
y = 1158/2
y = 579

So, x = 2342 + 579 = 2921

In short, Your Answer would be 2921 contemporary titles

Hope this helps!
3 0
3 years ago
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dezoksy [38]

Answer:

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Step-by-step explanation:

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Answer: 75

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