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joja [24]
4 years ago
7

Can someone help me? I had the notes in my notebook but I threw it away when it got full, not thinking that I was ever gonna nee

d these notes again.. ;,)

Mathematics
1 answer:
natima [27]4 years ago
7 0
1. The mistake is in the second line (didn't fully distribute)
2. The mistake is in the second line (didn't properly add 4p and 7p)
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How can you make 19 out of 10 8 5 2 3
postnew [5]
8-2=6
10+6+3=19

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What are the coordinates of the point that is 9 units to the left of (5, -8)?​
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(-4,-8)

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3 years ago
a senator wishes to estimate the proportion of united states voters who favor new road construction. what size sample should be
Nitella [24]

The  size of the sample should be obtained at 2401 in order to be 95% confident

Given that:

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Let the size of the sample be n

Using formula,

n=(p*(1-p))*(z(0.05/2)/ME)^{2} \\n=(0.5*(1-0.5))*(1.96/0.02)^{2} \\n=0.25*9604\\n=2401

Therefore, the size of the sample should be obtained at 2401 in order to be 95% confident

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8 0
2 years ago
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4 0
3 years ago
the rainfall total this year was 14.2 inches, which is 20% less than last year's rainfall total. what was last year's rainfall t
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Answer

The total rainfall last year is 12.75 inches.

Step-by-step explanation:

The total rainfall this year is 10.2 inches.

Let the total rainfall last year be x inches.

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Therefore total rainfall last year is 12.75 inches.

8 0
3 years ago
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