Question

Use the change of base formula to evaluate log3(73).

I am unsure of how to solve this... 0.0

(Metal and fan)

Answer 1

3^x = 73

xlog(3)=log(73)

x=log(73)/log(3)

Answer 2

dont know change of base formula but thats how id solve

Answer 3

wait i dont understand..are you dividing 73 by 3?

Answer 4

im taking log of both sides

Answer 5

and when you take log of something to the power x, the x drops down is is multiplied

Answer 6

im dividing log(73) by log(3)

Answer 7

Hmmm ok well my answer choices are
2.641
4.290
1.863
3.905

Answer 8

and that does not match up

Answer 9

it does

Answer 10

oh ok let me try again

Answer 11

\[\frac{ \log(73) }{ \log(3) }=3.905\]

Answer 12

Ok, i see that. Hmmm...for some reason when i divide i get 24.333