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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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Is 68 prime because i am doing homework and im stuck on this and it is very hard so help me please
BlackZzzverrR [31]

If  68  is a prime number, then the only factors it has are  1  and  68.
If it has any other factors besides  1  and  68, then it's NOT prime.

Right away, without any higher math, you can look at just the last digit
in 68 .  The last digit is '8'.  That tells you that '68' is an even number,
and THAT tells you that '2' must be one of its factors.  So '68' is not a
prime number.

The factors of  68  are  1,  2,  4,  17,  34, and  68 .    

68  has four more factors besides  1  and  68, so it's not a prime number.

8 0
3 years ago
Read 2 more answers
Maya has 5 over 6 cup of ice cream. How many 1 over 4 -cup servings are in 5 over 6 cup of ice cream?
Drupady [299]
The answer is c because it’s not a or d and maybe not b so ye c
6 0
2 years ago
Read 2 more answers
I need answer for a and b show your work
Stels [109]
I have two methods for you

7 0
3 years ago
Solve the equation. n + 1.5 = 13.8<br><br> n =??? Can somebody also answer this
Andre45 [30]

Answer:

n = 12.3

Step-by-step explanation:

No prob

6 0
2 years ago
HELP ME PLEASE IVE BEEN STRUGGLING WITH THIS FOR SO LONG
Ber [7]

Answer:

<h2>m∠ACE = 90°</h2>

Step-by-step explanation:

Figure Interpretation:

m∠CBA + m∠CDE = 180

m∠BCA = (180-m∠CBA)/2

m∠DCE = (180-m∠CDE)/2

=======================

Then

m∠BCA + m∠DCE = (180-m∠CBA)/2 + (180-m∠CDE)/2

                                = [360-(m∠CBA+m∠CDE)]/2

                                = [360 - 180]/2

                                = 90

finally,

m∠ACE= 180 - (m∠BCA + m∠DCE)

             = 180 - 90

             = 90

8 0
2 years ago
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