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tresset_1 [31]
3 years ago
7

Can i please help me I don't understand

Mathematics
2 answers:
Step2247 [10]3 years ago
6 0
There are two ways for finding p, here is one way:

1/2 = 4p

Multiply both sides by 2:
1 = 8p

Divide both sides by 8:
0.125 = p

Answer:
p = 0.125

Hope it helped :)
V125BC [204]3 years ago
3 0

Solve for p

1/2 = 4p

We know 1/2 is 0.5

we need to isolate p (It means solving for p)

0.5 / 4 = 4p / 4

4 and 4 cancels out

0.125 = p


OR


1/2 = 4p

1/2 ÷ 4 = 4p / 4

4 and 4 cancels out

1/2 x 1 / 4 = p

{1/4 is the reciprocal of 4}

1/8 = p

Which is also 0.125 = p


OR


1/2 = 4p

2 x 1/2 = 2 x 4p

2 and 2 cancels out

1 = 8p

divide 8 by 1 to isolate p

1/8 = 8p/8

8 and 8 cancels out

1/8 = p

0.125 = p

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Given f(x) = 4x3 − 12x2 + 40x + 12, find f(–2). A) f(–2) = –52 B) f(–2) = –96 C) f(–2) = –108 D) f(–2) = –148
AURORKA [14]

Given function : f(x) = 4x^3 -12x^2 + 40x + 12.

We need to find the values of f(-2).

In order to find the value of f(-2), we need to plug x=-2 in the given fucntion f(x) = 4x^3 -12x^2 + 40x + 12.

Replacing x by -2, we get

f(-2) = 4(-2)^3 -12(-2)^2 + 40(-2) + 12

We get (-2)^2 = -2 *-2*-2=-8 and (-2)^2 = -2 * -2 = 4.

f(-2) = 4(-8) -12(4) +40(-2) +12 .

f(-2) = -32 -48 -80+12.

f(-2) = -160 +12.

f(-2) = -148.

Therefore, correct option would be option D. That is  f(-2)=-148.                



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