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2 years ago

Please help it’s for a hard test

Mathematics

1 answer:

Maslowich2 years ago

5 0

Answer:

B) the initial amount of the account

Step-by-step explanation:

When x=0, no days have passed, so the y-intercept is there to see how much money you started with in the account.

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Plzz help me with this question

Aleks04 [339]

Answer: 45

Step-by-step explanation:

Complemntary angles result in a sum of 90. So, H=45 means

45+J=90

90-45= 45

6 0

2 years ago

The science class is taking a trip to the science center. there are 20 students and an unknown number of adult chaperones going.

Alekssandra [29.7K]

The greatest number of adults who can chaperone
35-20 = 15

4 0

3 years ago

Read 2 more answers

If the area of a circle measures 16 pi cm2, what is the circumference of the circle in terms of pi

Fiesta28 [93]

Answer: 8 pi

Step-by-step explanation: So we know that area of a circle is pi times r^2 so if we reverse that formula it would be square root of 16 pi which would be 4 pi and divide by pi so the radius is 4. And we know that the formula for circumference is 2 times pi times r, so 2 times 4 times pi is 8 pi. 8 pi is the cIrcumference! :)

7 0

3 years ago

Find the value of x so that the function has the given value. t(x) = 3x; t(x)<br> 24*

valentina_108 [34]

8 is the answer because we all ķnow 3 ×8=24

5 0

3 years ago

Michmoo Computer Company sells computers and computer parts by mail. The company assures its customers that products are mailed

Anastaziya [24]

Answer: (60.858, 69.142)

Step-by-step explanation:

The formula to find the confidence interval for mean :

$\overline{x}\pm z_c\dfrac{\sigma}{\sqrt{n}}$ , where $\overline{x}$ is the sample mean , $\sigma$ is the population standard deviation , n is the sample size and $z_c$ is the two-tailed test value for z.

Let x represents the time taken to mail products for all orders received at the office of this company.

As per given , we have

Confidence level : 95%

n= 62

sample mean : $\overline{x}=65$ hours

Population standard deviation : $\sigma=18$ hours

z-value for 93% confidence interval: $z_c=1.8119$ [using z-value table]

Now, 93% confidence the mean time taken to mail products for all orders received at the office of this company :-

$65\pm (1.8119)\dfrac{18}{\sqrt{62}}\\\\ 65\pm4.142\\\\=(65-4.142,\ 65+4.142)\\\\= (60.858,\ 69.142)$

Thus , 93% confidence the mean time taken to mail products for all orders received at the office of this company : (60.858, 69.142)

8 0

3 years ago