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Please help asap! These two have been a struggle for me...

Please help asap! These two have been a struggle for me...-example-1
User Taraz
by
7.9k points

1 Answer

7 votes

Answer:

A

C

Explanation:

recall the following rule:


n^x=y\\log_ny=x

to solve the first one we have


40(10^x)=15\\10^x=(15)/(40)\\x=log((15)/(40))

This is equal to


(log(15)/(40))/(log10) or A

same deal for the second one


10^x=(25)/(50)\\x=log{(25)/(50)=(log((25)/(50)))/(log10) or C

User Grimgrom
by
8.5k points

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