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# Average Value of a Function Without Knowing the Function

SVCALC-KAAVHB

If the average value of a function $f(x)$ over the interval $[0,5]$ is $20$, what is $\int _{ 0 }^{ 5 }{ f(x) } dx$?

A

$20$

B

$4$

C

$5$

D

$100$

E

There is not enough information to determine.