2 years ago

F(x)=-3x^2-6x Find f(−9)

Mathematics

2 answers:

White raven [17]2 years ago

5 0

Answer:

f(-9)= -189

Step-by-step explanation:

f(-9)= -3(-9)^2-6(-9)

f(-9)= -3(-9)^2 +54

f(-9)= -3(81) +54

f(-9)= -243 + 54

f(-9)= -189

Anni [7]2 years ago

3 0

Answer:

Your brain.

Step-by-step explanation:

All you have to do is plug the value of -9 into the equation everywhere you see an 'x' and if you are being asked this question I assume you have basic mathematical skills

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3 years ago

Solve this equation. -4(p+2)+8=2(p-1)-7p+15

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Hey there!

First we have to $distribute$ !

$-4 (p +2) = +8 = 2(p - 1) -7p + 15 \\ -4(p) + -4(2) + 8 = 2(p) +-2 + -7p + 15$

Now, we have to $combine$ our like terms

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7 0

2 years ago

I NEED THIS BY TODAY!!

Agata [3.3K]

Step-by-step explanation:

$(1. \: x = - \frac{y}{3}$

$(2. \: x = \frac{22 + 3y}{2}$

I think this is correct and what you wanted

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2 years ago

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