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Natali [406]
3 years ago
15

last Friday,Adam had $22.33.over the weekend,he received some money for shoveling he neighbor's driveway.he now has $32.How much

money did he receive for shoveling?
Mathematics
1 answer:
crimeas [40]3 years ago
7 0
$9.67 because $32-$22.33=$9.67
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son4ous [18]
12) LCM of 2 & 12 is 12 
Answer: (F)

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Answer: 800

14) I would plug each value in to see which works
D) 10x + 5y = 10(6) + 5(9) = 60 + 45 = 105

Answer is (D)

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3 years ago
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JulsSmile [24]

Answer:

a. The point estimate was of $44,600.

b. The sample size was of 16.

Step-by-step explanation:

Confidence interval concepts:

A confidence interval has two bounds, a lower bound and an upper bound.

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First we need to find the margin of error, so:

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That is z with a pvalue of 1 - 0.05 = 0.95, so Z = 1.64.

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M = z\frac{\sigma}{\sqrt{n}}

In which \sigma is the standard deviation of the population and n is the size of the sample.

For this problem, we have that \sigma = 14300, M = 5863. So

M = z\frac{\sigma}{\sqrt{n}}

5863 = 1.645\frac{14300}{\sqrt{n}}

5863\sqrt{n} = 1.645*14300

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(\sqrt{n})^2 = (\frac{1.645*14300}{5863})^2

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The sample size was of 16.

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Hello, we need to see it as a difference of two squares as we know that for all a and b real numbers

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