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NemiM [27]
2 years ago
5

Use the function below to find f(-2) F(x)=3x

Mathematics
1 answer:
frosja888 [35]2 years ago
6 0

Answer:

B

Step-by-step explanation:

Using the rule of exponents

a^{-m} = \frac{1}{a^{m} }

Then

f(- 2) = 3^{-2} = \frac{1}{3^2} = \frac{1}{9} → B

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Plzzz Helpp with this!!!!
Travka [436]

f(g(11)) = -6

Solution:

Given data:

f(x)=x^{2}-6 x+3

g(x)=\sqrt{x-2}

<u>To find f(g(11)):</u>

Substitute x = 11 in g(x).

g(11)=\sqrt{11-2}

        =\sqrt{9}

g(11)=3

Substitute g(11) = 3 in f(g(11)).

f(g(11))=f(3)

f(x)=x^{2}-6 x+3

f(3)=3^{2}-6 (3)+3

f(3)=9-18+3

f(3)=-6

f(g(11))=f(3)

             = -6

Hence f(g(11)) = -6.

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3 years ago
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1^2 + 4^2 + 7^2 + ... + (3n - 2)^2 = n(6n^2-3n-1)/2
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