Answer
Step-by-step explanation:
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Answer:
f(9) =21
Step-by-step explanation:
I will assume you want to find f(9) when x=9
Let x=9
f(9) = 2(9) +3
= 18+3
=21
f(9) =21
The answer is that it's a right triangle. One angle is 90°
U need to find the square root by long division.
So the answer would be 2.2