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blondinia [14]
3 years ago
6

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

Mathematics
1 answer:
Taya2010 [7]3 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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I think D but I'm not 100 percent certain

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Two out of every 3 students in Mr. Pearson's ninth grade class recycle aluminum
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72 students

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IF 2 out of 3 students recycle aluminum cans and 48 students recycle aluminum cans.

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4 years ago
PLS HELP ME WITH MY GEOMETRY
Alex

Answer:

x = 10

z = 116°

Step-by-step explanation:

By the definition of supplementary angles, we have:

Step 1: Find <em>x</em>

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Step 2: Find the supplementary angle to <em>z</em>

5(10) + 14

50 + 14

64

Step 3: Find <em>z</em>

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<em />

6 0
3 years ago
Find an equation in standard form for the hyperbola with vertices at (0,plus or minus 6) and asymptotes at y= (plus or minus 3/5
antoniya [11.8K]

Answer:

\frac{(y)^2}{36}-\frac{(x)^2}{100}=1

Step-by-step explanation:

Given:

Vertices of Hyperbola : (0 ± 6) or (0,6) and (0,-6)

and asymptotes at y= (±3/5)x 0r y= 3/5 x and y=-3/5 x

The vertices are of vertical hyperbola. The equation used will be:

\frac{(y-k)^2}{a^2}-\frac{(x-h)^2}{b^2}=1\\

The Center of hyperbola (h,k) =(0,0)

The Distance from vertices to center is a and a = 6 (given)

For equation we have value of h,k and a and need to find value of b

we know,

y= k ± a/b (x-h)

Values of h and k are zero

y= 0 ± a/b (x-0)

y= (± a/b ) x

We are given asymtotes at y= (± 3/5)x which is equal to y= (± a/b ) x

as a = 6 then b= 10 i.e The simplified form of 6/10 is 3/5 so value of b=10

Putting values of a,b,h and k in equation we get,

\frac{(y-0)^2}{(6)^2}-\frac{(x-0)^2}{(10)^2}=1\\\\\frac{(y)^2}{36}-\frac{(x)^2}{100}=1

7 0
4 years ago
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