06-03-2019
Mathematics

contestada

PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!!

Solve: log2(x-4) = 4

PLEASE HELP ASAP CORRECT ANSWER ONLY PLEASE Solve log2x4 4 class=

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tramserran tramserran

06-03-2019

Answer: D) 20

Step-by-step explanation:

Use log rules to convert log into exponent:

[tex]log_a(x)=y\quad \rightarrow \quad x=a^y\\\\log_2(x-4)=4\quad \rightarrow \quad x-4=2^4\\\\x-4=16\\.\qquad x=20[/tex]

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