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3 years ago

15

What would a monthly payment be on a purchase of an $11,000 car at 7.9% for 3 years? A. $334.39 B. $312.50 C. $344.19 D. -$344.1

9

1 answer:

Vanyuwa [196]3 years ago

6 0

I think it's B but I can't be too sure

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One week, Jake and Sally collected canned goods for a food drive. On Monday, Jake collected 4 boxes and Sally collected 2 boxes.

MrMuchimi

Jake:
Mon- 4 boxes
End of the week- 3x the boxes on Mon
3 x 4 = 12

Sally:
Mon- 2 boxes
End of the week- 4x the boxes on Mon
4 x 2 = 8

12 + 8 = 20 boxes total

5 0

3 years ago

Use elimination to solve the system.

julia-pushkina [17]

Answer:

the answer to your question is (9,3)

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2 years ago

A swimming pool that holds 10,000 gallons of water is being filled at a rate of 600 gallons per hour. The function h(x)=600x rep

Vladimir79 [104]

*assume the pool is empty at the beginning

a) plug 3.25 into the equation and solve

h(3.25) = 600*3.25 = 1950 gallons

b) after 3.25 hours the total amount of water will be 1950 gallons

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2 years ago

A random sample of 250 students at a university finds that these students take a mean of 15.3 credit hours per quarter with a st

SpyIntel [72]

Answer: $15.3\pm0.198$

OR

(15.102, 15.498)

Step-by-step explanation:

The formula to find the confidence interval $(\mu)$ is given by :-

$\overline{x}\pm z_{\alpha/2, df}\dfrac{s}{\sqrt{n}}$

, where n is the sample size

$s$ = sample standard deviation.

$\overline{x}$ = Sample mean

$z_{\alpha/2}$ = Two tailed z-value for significance level of $\alpha$ .

Given : Confidence level = 95% = 0.95

Significance level = $\alpha=1-0.95=0.05$

$s= 1.6$

$\overline{x}=15.3$

sample size : n= 250 , which is extremely large ( than n=30) .

So we assume sample standard deviation is the population standard deviation.

thus , $\sigma=1.6$

By standard normal distribution table ,

Two tailed z-value for Significance level of 0.05 :

$z_{\alpha/2}=z_{0.025}=1.96$

Then, the 95% confidence interval for the mean credit hours taken by a student each quarter :-

$15.3\pm (1.96)\dfrac{1.6}{\sqrt{250}}\\\\ =15.3\pm 0.19833\\\\=\approx15.3\pm0.198\\\\=(15.3-0.198,\ 15.3+0.198)=(15.102,\ 15.498)$

Hence, the mean credit hours taken by a student each quarter using a 95% confidence interval. =(15.102, 15.498)

5 0

3 years ago

One polygon has a side of length 3 feet. A similar polygon has a corresponding side of length 9 feet. The ratio of the perimeter

Alexeev081 [22]

The answer is times 3 (*3) or (1/3)

7 0

2 years ago

Read 2 more answers