3 years ago

Find the slope of a line through the given points. (-8, 12) and (2, -6)

Mathematics

1 answer:

aniked [119]3 years ago

5 0

Answer:

-9/5

Step-by-step explanation:

slope = (-6 - 12)/(2 - -8) = -18/10 = -9/5

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The mean of five numbers is 8. when another number is added the mean is 7. find the number added

sasho [114]

Answer:

$\large \boxed{\sf \ \ 2 \ \ }$

Step-by-step explanation:

Hello,

The mean of five numbers is 8 so we can write

$\dfrac{x_1+x_2+x_3+x_4+x_5}{5}=8$

When another number is added the mean is 7, let s note x the another number we can write

$\dfrac{x_1+x_2+x_3+x_4+x_5+x}{6}=7$

From the first equation we can say

$x_1+x_2+x_3+x_4+x_5=8*5=40$

So the second equation becomes

$\dfrac{x_1+x_2+x_3+x_4+x_5+x}{6}=7\\\\ \dfrac{40+x}{6}=7\\\\40 + x = 6*7=42\\\\ x = 42-40 = 2\\$

The solution is then 2

Hope this helps

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3 years ago

Which is a y-intercept of the graphed function

dybincka [34]

Answer:

$\displaystyle (0, -9) \\ (0, -3)$

Step-by-step explanation:

There is no graph posted, but y-intercepts are x's are set equal to zero.

I am joyous to assist you anytime.

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