Question

Find f(7) for
the function
below.
F(x)=1/2 x 2^x

Answer 1

64

Explanation:

`\begin{aligned}\rm f(x)&=\rm(1)/(2)* 2^x\\\rm f(7)&=2^(-1)* 2^7\\&=2^(-1+7)\\&=2^(7-1)\\&=2^6\\&=2^6\\&=\bf 64\end{aligned}`