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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)

Respuesta :

K0RAL
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)
calculista

Answer:

The answer is the option D

[tex](\frac{5}{16})[/tex]

Step-by-step explanation:

we have

[tex]f(x)=5(\frac{1}{2})^{x}[/tex]

we know that

To find [tex]f(4)[/tex]

substitute the value of [tex]x=4[/tex] in the function

so

[tex]f(4)=5(\frac{1}{2})^{4}[/tex]

[tex]f(4)=5(\frac{1}{16})[/tex]

[tex]f(4)=(\frac{5}{16})[/tex]

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