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Elza [17]
3 years ago
10

HELPPPPPPPPPPPP!!!!!

Mathematics
2 answers:
kykrilka [37]3 years ago
6 0
9=3^2

3^(2x)=(3^2)^(3x-4)
3^(2x)=3^(6x-8)
2x=6x-8
0=4x-8
8=4x
2=x
Gennadij [26K]3 years ago
5 0

Answer:

9=3^2

3^(2x)=(3^2)^(3x-4)

3^(2x)=3^(6x-8)

2x=6x-8

0=4x-8

8=4x

2=x

Step-by-step explanation:

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Mia tossed a penny,a nickel and a dime all possible outcomes of H is the answer C.

Step-by-step explanation:

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Answers:

  • a) Mean = 20.4
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==================================================

Explanation:

To get the mean, we add up the scores and divide by 10 (because there are 10 scores at first)

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204/10 = 20.4

The mean is 20.4

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For part b), we redo those steps shown above, but tack 16 onto the list. So we'll add up all the values (including that 16 at the end) and divide by 11 this time.

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The new mean is 20.

The new mean is slightly smaller than the old mean. Notice how 16 is smaller than 20.4, so this new score pulls down the mean just a little bit.

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