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3 years ago

Help help help AAAAAAA math is hard

Mathematics

2 answers:

yuradex [85]3 years ago

8 0

Answer: I believe it is h

Step-by-step explanation:

mezya [45]3 years ago

8 0

Answer: F.) $404.17

Explanation: To solve this, first you'd need to subtract the payments people will be making towards the cost. Since the grandparents will be paying half, you need to divide the $19,700 ÷ 2. The quotient of this is $9,850. Because $9,850 is half of the total cost, we are now left with the other $9,850. Luckily, the student's athletic scholarship will be subtracting $5,000 from the total. And so, after subtracting $9,850 - $5,000, we get a difference of $4850. $4850 is the amount that the student pays over the course of 12 months. To calculate how much she needs to save every month, we will divide 4850 ÷ 12 and receive a quotient of 404.17. Therefore, the student will need to save $404.17 every month in order to pay off the remaining costs at the end of the 12 months.

I hope this helped!

Good luck <3

(btw i luvv your kuromi pfp!!)

You might be interested in

What is the answer to -3(-6.2) = in simplest form

Ksju [112]

Answer:

18.6

Step-by-step explanation:

-3(-6.2)

~Expand

-3 * -6.2

~Multiply

18.6

Best of Luck!

4 0

2 years ago

What is the slope of the line that passed through (3,-4) and (4,9)

Advocard [28]

Step-by-step explanation:

Step 1: Find the slope

$m=\frac{y_2-y_1}{x_2-x_1}$

$m=\frac{9-(-4)}{4-3}$

$m =\frac{9+4}{1}$

$m=13$

Answer: The slope is 13

5 0

3 years ago

Your goal is to take at least 10,800 steps per day. According to your pedometer, you have walked 7370 steps. Write and solve an

faust18 [17]

Answer:

Step-by-step explanation:

Let the numbers of steps you can take to reach your goal be x

Your goal is to take at least 10,800 steps per day and you have walked 7370 steps already.

x + 7370 >= 10800

x >= 10800 - 7370

x >= 3430

3 0

3 years ago

Read 2 more answers

Crash Hospital Costs. A study was conducts to estimate hospital costs for accident victims who wore seat belts. Twenty randomly

kvv77 [185]

Answer:

a) The 99% confidence interval would be given by (5004.168;12603.832)

b) For this case we can use the lower bound for the confidence interval as estimation, on this case 5004.168. But we need to take in count that this value it's with 99% of confidence and 1% of significance and 1% of probability to commit type Error I

Step-by-step explanation:

1) Previous concepts

A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".

The margin of error is the range of values below and above the sample statistic in a confidence interval.

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

$\bar X =9004$ represent the sample mean for the sample

$\mu$ population mean (variable of interest)

s=5629 represent the sample standard deviation

n=20 represent the sample size

2) Part a

The confidence interval for the mean is given by the following formula:

$\bar X \pm t_{\alpha/2}\frac{s}{\sqrt{n}}$ (1)

In order to calculate the critical value $t_{\alpha/2}$ we need to find first the degrees of freedom, given by:

$df=n-1=20-1=19$

Since the Confidence is 0.99 or 99%, the value of $\alpha=0.01$ and $\alpha/2 =0.005$ , and we can use excel, a calculator or a table to find the critical value. The excel command would be: "=-T.INV(0.005,19)".And we see that $t_{\alpha/2}=2.86$

Now we have everything in order to replace into formula (1):

$9004-2.86\frac{5629}{\sqrt{20}}=5004.168$

$9004+2.86\frac{5629}{\sqrt{20}}=12603.832$

So on this case the 99% confidence interval would be given by (5004.168;12603.832)

3) Part b

For this case we can use the lower bound for the confidence interval as estimation, on this case 5004.168. But we need to take in count that this value it's with 99% of confidence and 1% of significance and 1% of probability to commit type Error I

7 0

2 years ago

HELLLLLLLLLLLLLLLLLLLP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

lubasha [3.4K]

Look at the picture.

Angle a:
Vertical angles are equal

Angle b:
(ΔABC). In a triangle, the three interior angles always add to 180°

Angle c:
Angles on one side of a straight line will always add to 180 degrees.

3 0

3 years ago