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In the expression 3x^2+6x-9, 3 and 6 are examples of?

"Coefficients"

Their sum=89

89/8=11 1/8 is the mean

{3, 6, 6, 13, 13, 16, 16, 16}

The median=13

Wait... Why would there still be a one on top?

I think you might mean  ( x - 8, y + 4).......so

( -2 - 8 , 6 + 4)  =

(-10, 10)

Thank you

3 / 3^3  =   [3] / [ 3 * 3 * 3]   =  one 3 cancels on top/bottom  =   1 / [ 3 * 3]    = 1 / 9

21!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

21parts / 4 hrs = ? parts / 7 hrs      cross-multiply

7 * 21  = 4 * ?      divide both sides by 4

[ 7 * 21] / 4 = ?   = 36.75 parts in 7 hrs

In most English-speaking countries, we use "." as a decimal separator and "," as a separator of thousands. Example: 1.25 for one and a quarter, and1,000,000 for one million. In many other countries, such as Germany, they do exactly the opposite.

15%  = .15        and  "of" means "multiply"......so we have

.15 * 70  =

10.5

8 cos(x) − 4 = 0   add 4 to both sides

8cos(x)  = 4      divide both sides by 8

cos(x) = 4/8

cos(x)  = 1/2     and this happens at   pi/3 and 5pi/3   on the requested interval

there are seven sisters standing around the kitchen table. Each one has seven backpacks. In each backpack, there are seven large cats. For every large cat, there are seven small cats. How many legs are there in the room?

7 sisters X 7 backpacks X 7 large cats X 7 small cats=2,401 all cats

2,401 X 4 =9,604 all cat's legs

7 sisters X 2 =14 legs for all sisters

9,604 + 14 =9,618 total legs of cats and humans.

We don't know how large the table is, and therfore the number of "legs", which will not include in this calculation.

Never mind I got it

nine plus ten is ninteen.

you distribute the 7a

tan means that if there is a right triangle, and you know one of the other angles, you can pyt it in and figure out the ratio of the other two sides. like a right triangle with an angle of 45, if you put in 45 tan, you will get 1, because the ratio is 1/1. 

i have no idea what tanh is though, sorry.

You are so stupid. Even my little sister knows that and she is in kindergarten.

the answer is 4

you find how many legs by doing the math, you take the 7 people with 2 legs each, and take all 56 cats with 4 legs each then add the 4 legs of the table. you do the rest.

4 u idiot

48 / 18 = 

[ 8 * 6 ] / [3 * 6] =       the 6s cancel on top/bottom

8 / 3

👅👅👅👅👅👇👊

7a+2 is the answar

\(\frac{1}{5}\times(10x-5)-3\)

\(\frac{10x}{5}-\frac{5}{5}-3\)

\(2x-\frac{5}{5}-3\)

\(2x-1-3\)

\(2x-4\)

tan is a trigonomitry function, where if you have an angle in a right triangle, it says adjacent/oppisite sides. 

\(7a\times(a+2)\)

\(7a{}^{2}+14a\)