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zzz [600]
3 years ago
9

Find f '(-3), if f(x) = (2x2 - 7x

Mathematics
1 answer:
jok3333 [9.3K]3 years ago
8 0

Answer:

f'(- 3) = - 19

Step-by-step explanation:

Differentiate using the power rule

\frac{d}{dx}(ax^{n}) = nax^{n-1}

Given

f(x) = 2x² - 7x, then

f'(x) = 4x - 7 and

f'(- 3) = 4(- 3) - 7 = - 12 - 7 = - 19

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Find the indicated values, where
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Answer:

option (b) is correct.

The value of g(f(3)-2f(1))  is 0.

Step-by-step explanation:

Given: g(t)=t^2-t and f(x)=1+x

We have to find the value of g(f(3)-2f(1))

Consider the given function f(x)=1+x

First evaluate value of function f(x) at x = 3 and 1 then substitute it in g(f(3)-2f(1)) .

f(3) = 1 + 3 = 4

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Substitute, we get

g(f(3)-2f(1))=g(4-2(2))

Solving further , we get,

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Now evaluate g(t)=t^2-t at t = 0 , we get,

g(0)=0^2-0=0-0=0

Thus, value of g(f(3)-2f(1))  is 0.

Thus, option (b) is correct.

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3 years ago
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tatyana61 [14]
The area of a rectangle would be:
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2 years ago
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Answer:

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