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3 years ago

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Help pls!! I need help!!

1 answer:

AlladinOne [14]3 years ago

6 0

Answer:

what u need help wt?

Step-by-step explanation:

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Given f(x) =x-7 and g(x) =x2 find g(f(4))

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Answer: g(f(4))=9

Step-by-step explanation:

To find g(f(4)), you first find f(4). Then, you plug it into g(x).

f(4)=4-7 [subtract]

f(4)=-3

Now, we know f(4) into g(x).

g(f(4))=(-3)² [exponent]

g(f(4))=9

Now, we know that g(f(4))=9.

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Its B :)

Step-by-step explanation:

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F(x)= 4x+1 and g(x)=x^2-5 find (f/g) (x)

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3 years ago

What is the value of x? Idk plz help me

FrozenT [24]

The answer is 55 degrees

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4 years ago

A box with a square base and no top is to be built with a volume of 4000 in3. find the dimensions of the box that requires the l

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Let the length of the square base be x inches .

And the height of the box be y inch .

Volume = x*x*y

4000 = x *x *y

$y = \frac{4000}{x^2}$

S = x*x + 2xy + 2 x y

$S = x^2 + 4 xy$

$S = x^2+ 4x* \frac{4000}{x^2}$

$S = x^2 + \frac{16000}{x}$

$S ' = 2x - \frac{16000}{x^2}$

S ' =0

$2x - \frac{16000}{x^2}=0$

$2x^3 - 16000 = 0$

$x^3 = 8000$

x = 20

$y = \frac{4000}{20^2} = \frac{4000}{400} = 10$

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3 years ago