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zavuch27 [327]
3 years ago
8

What is the value of f(x)= 9^x when x=-2? A) 1/8 B) 81 C) 1/18 D) 18

Mathematics
1 answer:
lions [1.4K]3 years ago
4 0
Substitute -2 in for x and get (9)^-2
Flip the equation so that the exponent is positive and get 1/9^2
Work it out 1/(9*9) = 1/81

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