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Mila [183]
3 years ago
8

A piano instructor examined student progress.she noticed that when students spend less time playing video games,their memorizati

on ability does not tend to change . what can she conclude
A.there is no correlation

B.there is a correlation between amount of time spent playing video games and memorization ability.there is probably also causation.this is because there is an increase in memorization ability with a decrease in the amount of time spent playing video games.

C.there is a correlation between amount of time spent playing video games and memorization ability.there may or may not be causation.further studies would have to be done to determine this
Mathematics
1 answer:
seropon [69]3 years ago
6 0

<u>Answer</u><u>:</u><u> </u><u>The</u><u> </u><u>correct </u><u>answer</u><u> </u><u>is</u><u> </u><u>B</u><u>.</u>

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The question is shown in the picture
Masteriza [31]
20 + 25(times the number of hours) = 282.50
You add the 20 because of the one time service fee.

Now lets work this out.
20 + 25x =282.50
25x = 262.50   (subtract both sides by 2 to get the x's alone)
x = 10.5    (divide both sides by 25 to get just x)
x = 10.5 hours

So the answer is A.
3 0
3 years ago
Read 2 more answers
Someone please help me answer this!!
astra-53 [7]

Answer:

c = 53 miles

Step-by-step explanation:

a^2 + b^2 = c^2

45^2 + 28^2 = c^2

2,025 + 784 = c^2

2809 = c^2

c  = 53

3 0
3 years ago
Find the measure of angle A. (Hint: You will need to find the value of x, but that is NOT the solution.)
dangina [55]

Answer:

41°

Step-by-step explanation:

Sum of angle measures in a triangle: 180°

So,

108 + x + 5 + x - 5 = 180

Simplify.

2x + 108 = 180

Subtract 108 from both sides.

2x = 72

x = 36

Substitute x = 36 into (x + 5)

m∠A = 36 + 5 = 41

Thus, the answer is 41°

8 0
2 years ago
How to Simplify (7^6)^2
LiRa [457]

Answer:

Well, since your question is asking how to simplify and not the actual answer itself, all we have to do is first simplify 7^6=117,649. Now we just take that number and make it 117,649^2. I hope im correct with the way i set up the equation even though the number is absurdly large

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
Determine which postulate can be used to prove the triangles are congruent. If it is not possible to prove congruent, choose not
Gennadij [26K]

Answer:

I would say by SSS only, im not 100% sure though.

The second one would be SSS only too i think.

Step-by-step explanation:

You have a given angle where the 2 triangles meet, but based on where the side is I don't think you could use SAS

5 0
2 years ago
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