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sashaice [31]
4 years ago
9

Can someone plsssss help

Mathematics
2 answers:
Taya2010 [7]4 years ago
4 0

Answer:

12

Step-by-step explanation:

a2 +b2 = c2

a2 + 9 2 = 15 2

a2 + 81 = 225

     - 81    - 81

a2 = 144

 a = 12

Orlov [11]4 years ago
3 0
A=12 I hope this helps and this is definitely correct
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If ⅙ of a roll of wallpaper covers ¼ of the wall. How many rolls of paper are needed to cover 4 walls?
AVprozaik [17]

Answer:

if 1/6 of a roll of paper covers 1/4 of a wall, this means that we will need 4/6 of a roll to cover a whole wall, now the question is asking how many rolls will we need to cover 4 walls, we already know that it takes 4/6 to fill one wall so if we add 4/6+4/6+4/6+4/6 we will get 16/6 or 2 4/6

we will need 16/6 or 2 4/6 of rolls of paper to cover 4 walls

5 0
3 years ago
What are the dimensions of the base of the pyramid?
aleksley [76]

Answer:

C

Step-by-step explanation:

its a wild guess because you didn't add a picture or anything to show the  pyramid

4 0
3 years ago
When the population mean and standard deviation are known, what distribution is used for the analysis of the sample?.
Kitty [74]

When the population mean and standard deviation are known, you use the standard normal distribution

<h3>How to determine the distribution?</h3>

There are several probability distributions; these include

  • Normal distribution
  • Poisson distribution
  • Chi square distribution
  • Binomial distribution
  • Etc

Of all these distribution, only the standard normal distribution can be used when the population mean and standard deviation are known,

Note that it is also referred to as the z-distribution

Read more about probability distributions at:

brainly.com/question/24756209

7 0
2 years ago
What do 89/90 equal but not as a decimal or a percent as a fraction HELP ME
sergeinik [125]

Answer:

it equals 89/90

Step-by-step explanation:

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3 0
3 years ago
A retailer has determined that the cost C of
adelina 88 [10]
A. The expression given in the question is

c = 6x + (900000/x)
c = (6x^ +900000)/x
I hope that this is the expression that you were looking for.

b. When x = 240, then

c = [6 * (240)^2 + 900000]/ 240
   = (6 * 57600) + 900000/240
   = (345600 + 900000)/240
   = 5190

From the above deduction, it can be concluded that the cost of ordering and storing is 5190. I hope the procedure is clear enough for you to understand.
7 0
3 years ago
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