D is correct. f(-2) the number in the bracket is an input so..
whenever you see an X in the function replace it with -2
f(-2)=2*3^-2
3^-2 is 1/9
1/9 * 2 is simply 2/9
so D is correct
Answer:
A
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my teacher gave me the exact answer for this
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three days?
Answer:
n= 2
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i know this is right