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3 years ago

5 points

Mathematics

1 answer:

kifflom [539]3 years ago

7 0

Answer:

y = - 10/3 + 70

Step-by-step explanation:

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Question is attached below, Good Luck! I will Mark Brainliest for best answer!

DerKrebs [107]

Answer:

1960 cm^2

Step-by-step explanation:

Surface area:

Area of cross section x 2 = 1/2 x 20 x 21 x 2 = 420 cm^2

Area of slope = 29 x 22 = 638cm^2

Area of base = 22 x 20 = 440cm^2

Area of back = 21 x 22 = 462cm^2

Total Surface area = 462+440+638+420 = 1960cm^2

Hope this helps

6 0

3 years ago

For each of the figures shown below, the existing coordinates are listed. Follow the instructions for each shape and perform the

TEA [102]

Answer:

I do not see a image

Step-by-step explanation:

5 0

3 years ago

How do I eat pears how do I eat pears how do I eat pears how do I eat pears how do I eat pears how do I eat pears how do I eat p

UkoKoshka [18]

Answer: first open your mouth then hold the pear and put it inn your mouth then chew then it will go down your thought

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

Which sides form a right triangle

Sholpan [36]

Answer:

Do i get brainliest lol

3 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

4 years ago