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3 years ago

Can someone simplify 9^-2.5?

Mathematics

1 answer:

tresset_1 [31]3 years ago

3 0

Answer: 1/243

Step-by-step explanation: To simplify the problem shown, our first step is to convert the decimal in the exponent, -2.5, to a fraction.

-2.5 is the same thing as -2 and 1/2 so we have 9^-2 and 1/2 and -2 and 1/2 is the same thing as -5/2 so we have 9^-5/2.

The rest of my work is attached in the image provided.

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Answer:

option D

Step-by-step explanation:

$f(x) = x^2 + 5x + 6$

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Plug in g(x) in f(x)

We plug in 1/x+3 in the place of x in f(x)

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To simplify it we take LCD

LCD is (x+3)(x+3)

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Option D is correct

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2 years ago

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ii)
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