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Svetllana [295]

3 years ago

6

Todd takes out a student loan for $25,000. The annual simple interest rate is 7.75%. If Todd will be paying $38,750 in interest

alone, how many years is he taking to pay off the loan?

1 answer:

crimeas [40]3 years ago

3 0

Answer:

20 years

Step-by-step explanation:

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A cheese processing company wants to estimate the mean cholesterol content of all one-ounce servings of a type of cheese. The es

Mrrafil [7]

Answer:

The minimum sample size required to construct a 95% confidence interval for the population mean is 65.

Step-by-step explanation:

We are given the following in the question:

Population standard deviation,

$\sigma = 3.10\text{ milligrams}$

We need to construct a 95% confidence interval such that the estimate is within 0.75 milligrams of the population mean.

Thus, the margin of error must me 0.75

Formula for margin of error:

$z_{critical}\times \dfrac{\sigma}{\sqrt{n}}$

$z_{critical}\text{ at}~\alpha_{0.05} = 1.96$

Putting values, we get,

$0.75 = 1.86\times \dfrac{3.10}{\sqrt{n}}\\\\\sqrt{n} = \dfrac{1.96\times 3.10}{0.75}\\\\\sqrt{n} = 8.101\\\Rightarrow n = 65.63\approx 65$

Thus, the minimum sample size required to construct a 95% confidence interval for the population mean is 65.

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3 years ago

What additional information is necessary to prove that SILY is a parallelogram

kirza4 [7]

Answer:

Are the sides parallel?

Step-by-step explanation:

8 0

4 years ago

Arte-miy333 [17]

Answer:

this could work y=(-22)x+41

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3 years ago

A class has 6 boys and 15 girls. what is the ratio of boys to girls

butalik [34]

Answer: 6:15

Step-by-step explanation:

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3 years ago

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If 3*2=12,3*5=24and 15-6=3then 16/2=?<br>a.4<br>b.6<br>c.8<br>d.12

ser-zykov [4K]

Answer:

16 divided by 2 equals C which is 8.

Step-by-step explanation:

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3 years ago