Question

Use the function below to find F(4).

F(x)=5*(1/2)^x
please help, can you also explain how to get the answer?
choices are
A. (5/8)
B. (5/4)
C. (5/2)
D. (5/16)

Answer 1

To find F(4), you simply plug 4 in for x. That means multiplying 5 by 1/2x to the 4th power. That comes out to .3125, or D. (5/16)

Answer 2

The answer is the option D

`((5)/(16))`

Explanation:

we have

`f(x)=5((1)/(2))^(x)`

we know that

To find
`f(4)`

substitute the value of
`x=4` in the function

so

`f(4)=5((1)/(2))^(4)`

`f(4)=5((1)/(16))`

`f(4)=((5)/(16))`