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klemol [59]
3 years ago
13

Useable energy is lost each time energy is converted to another form of energy, true or false?

Mathematics
1 answer:
shepuryov [24]3 years ago
3 0

Answer:True,  becuase every time energy is converted to another form, is  some of it is bled off and it  made unusable.

Step-by-step explanation:

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16875.98

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When solving a linear system by substitution, how do you decide which variable to solve first?
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Jada and Diego are practicing the piano for an upcoming rehearsal. The number of minutes Jada practiced is listed below:
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20

Step-by-step explanation:

First, rewrite the numbers in numerical order:

8, 10, 10, 15, 15, 20, 20, 20, 20, 25, 25, 25, 35

Then find the middle number: (note there's 6 numbers on each side of <u>20</u>)

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Hope this helps!

7 0
3 years ago
In a study of computer use, 1000 randomly selected Canadian Internet users were asked how much time they spend using the Interne
Dvinal [7]

Answer:

b. Do not reject H0. We do not have convincing evidence that the mean weekly time spent using the Internet by Canadians is greater than 12.7 hours.

Step-by-step explanation:

Given that in a study of computer use, 1000 randomly selected Canadian Internet users were asked how much time they spend using the Internet in a typical week. The mean of the sample observations was 12.9 hours.

H_0: \bar x =12.7\\H_a: \bar x >12,7

(Right tailed test at 5% level)

Mean difference = 0.2

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Z statistic = 1.0540

p value = 0.145941

since p >alpha we do not reject H0.

b. Do not reject H0. We do not have convincing evidence that the mean weekly time spent using the Internet by Canadians is greater than 12.7 hours.

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3 years ago
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