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saw5 [17]
4 years ago
15

Which are solutions to the equation below?

Mathematics
2 answers:
pishuonlain [190]4 years ago
5 0
X^2 + 18 = -9x
x^2 +9x +18 = 0
(x+3) (x+6) =0

So x = -3 and x =-6
Answers: E and F
mojhsa [17]4 years ago
3 0
The answers would be E and F -6 and -3
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(4.8). (-8.16)<br> find the slope of the line through each pair of points.
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5 0
3 years ago
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What does -3+7y=5x+2y Equal<br> (I’m bad at math)
bogdanovich [222]

Answer: 22 /5

-3+7y=5x+2y

Step-by-step explanation:

Subtract 2y from each side

-3+7y-2y=5x+2y-2y

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Add 5 to each side

5y = 5x+3

Divide each side by 5

y = 5x/5 +3/5

y = x +3/5

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Step-by-step explanation:

5 0
3 years ago
A cone with height h and radius r has volume V = 13πr^2h. If the cone has a height of 6 in. and volume V = 8πx^2 + 24πx + 18π, w
torisob [31]

ANSWER

r = x -  \frac{3}{2}

EXPLANATION

The volume of the cone is

V=8\pi \:  {x}^{2}  + 24\pi \: x + 18\pi

The height of the is 6 inches.

We put the values into the volume of cone to get.

8\pi \:  {x}^{2}  + 24\pi \: x + 18\pi =  \frac{1}{3} \times  \pi \:  {r}^{2}  \times 6

8\pi \:  {x}^{2}  + 24\pi \: x + 18\pi = 2 \pi \:  {r}^{2}

Divide through by 2π.

4 {x}^{2}  + 12x + 9 = {r}^{2}

The expression on the LHS is a perfect square trinomial.

( {x -  \frac{3}{2} })^{2}  =  {r}^{2}

r = x -  \frac{3}{2}

5 0
4 years ago
Read 2 more answers
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