What is the mean of 18 16 -14 -15 8 18 7 11 -13

Mathematics

2 answers:

exis [7]3 years ago

3 0

here ur answer its 6

can i have da crown

have a goed day

Dennis_Churaev [7]3 years ago

3 0

Answer:

Step-by-step explanation:

To find the mean, we add up all the numbers and then divide by the number of numbers

Add up all the numbers

18 +16 +-14+ -15+ 8+ 18+ 7+ 11+ -13=36

There are 9 numbers so we divide by 9

36/9 = 4

The mean is 9

You might be interested in

Please show your work<br> What is the solution of the equation <img src="https://tex.z-dn.net/?f=%20%5Csqrt%7B2x%2B13%7D%20-5%3D

Hatshy [7]

Add the five to each side.
then square it to get rid of the square root
2x+13=(5+x)^2
2x+13=x^2+10x+25
2x=x^2+10x+12
x^2+8x+12=0
(x+6)(x+2)
x+6=0
x+2=0
answers are -2 and -6, however, when pluging -6 in it doesnt work, so it is only -2.

3 0

3 years ago

Julissa is running a 10-kilometer race at a constant pace. After running for 18 minutes, she completes 2 kilometers. After runni

allochka39001 [22]

After running for 18 minutes, Julissa completes 2 kilometers. If she is running a 10-kilometer race at a constant pace, then she comletes 1 kilometer after running 9 minutes. Now you can find the distance she run after 1 minute. This is $\dfrac{1}{9}$ km.

Let t be the time in minutes. Then k, the number of kilometers, can be found from proportion:

$\dfrac{1}{9}\ km$ - 1 minute

k km - t minutes.

Thus,

$\dfrac{\dfrac{1}{9}}{k}=\dfrac{1}{t},\\ \\k=\dfrac{1}{9}\cdot t.$

Answer: $k=\dfrac{1}{9}\cdot t.$

7 0

3 years ago

Read 2 more answers

which product will result in a sum or difference of cubes? (x 7)(x2 – 7x 14) (x 8)(x2 8x 64) (x – 9)(x2 9x 81) (x – 10)(x2 – 10x

Alina [70]

Hello,
++++++++++++++++++++++++
Answer C
++++++++++++++++++++++++

x^3+7^3=(x+7)(x²-7x+49) A: False (+14)
x^3+8^3=(x+8)(x²-8x+64) B:False (+8x)
x^3-10^3=(x-10)(x²+10x+100) D:False (-10x)

6 0

3 years ago

Read 2 more answers

The explicit rule for a sequence is given.

tamaranim1 [39]

$a_{1}=3$