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2 years ago

Whats the mean 15,22,19,20,29,18,25,19,31

Mathematics

1 answer:

Taya2010 [7]2 years ago

6 0

Answer: 22

Step-by-step explanation:

The mean is the average of the number.

Step 1 : Add up all the numbers

Step 2: Then divide by how many numbers there are

15 + 22 + 19 + 20 + 29 + 18 + 25 + 19 + 31 = 198

198 ÷ 9 = 22

The mean is 22

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Please answer the following:

serg [7]

The sum of all interior angles in a polygon is
180(n - 2), where n = the number of sides in the polygon.

now, notice this figure above, it has 5 sides, namely is a PENTAgon, so the sum of all its interior angles is 180( 5 - 2), or 540, therefore

$\bf (4x)~+~(3x+15)~~+~~(4x-25)~~+~~(3x+25)~~+~~(2x-3)=540
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2 years ago

Evaluate the expression when a is -5 and y is 7

sasho [114]

$a - 5y$

when a = -5 and y = 7 :

$( - 5) - 5(7) = - 5 - 35 = - 40$

Answer: -40

ok done. Thank to me :>

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1 year ago

Wen takes a job with a starting salary of $100,000 for the first year. she earns a 3% increase each year. what does s5 represent

steposvetlana [31]

$S_{n} = \frac{ a_{1}(1- r^{n}) }{1-r}$ $a_{1} = 100000, r=1.03, n=5$
$S_{5} = \frac{100000(1- 1.03^{5}) }{1-1.03} = \frac{100000(-.159)}{-.03} =530,000$

So after 5 years she is making $530,000.

Hope that helps

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2 years ago

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Write the equation for the graph below.<br> PLEASE I NEED HELP !

mrs_skeptik [129]

Y= 1x+ 3
1x is the slope and 3 is the y intercept
I did rise over run to find the slope 3/3=1
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hope this helps!

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3 years ago

The question is what is other equation to find 16-9

disa [49]

Its 9-1 so that would be 8 idk if you are right just noticed and though it would help

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2 years ago