Question

Which of the following is equivalent to log 8 16 ?
Choose one answer.
a. 2
b. 1.248
c. 4 over 3
d. 3 over 4

Answer 1

Do you mean \(\log_8 16\)?

Answer 2

yup!

Answer 3

Then you want to find the exponent that eight raise to that exponent equals 16
\( 8^x=16\)

Answer 4

so would it be b

Answer 5

Can you eliminate any of the choices?

Answer 6

a

Answer 7

Do you have a calculator?

Answer 8

nope trying to find one

Answer 9

k got it 4/3

Answer 10

Ok, choice b is between 1 and 2, so \(8^x\) would be between 8 and 64.

Answer 11

as far as i know: \[\log_{x}a=\ln x/\ln a\] !!

Answer 12

Got the anwer can you help me on another one please?

Answer 13

Which of the following is equivalent to log 3y 2x ?
Choose one answer.
a. common log of 2x over common log of 3y
b. common log of 3y over common log of 2x
c. log2x over 3y
d. log3y over 2x

Answer 14

I can try.

Answer 15

Is there a minus sign missing?

Answer 16

nope the

Answer 17

OK, 0x58 gave you the formula above.

Answer 18

what?

Answer 19

Six or seven posts ago, 0x58 posted the change of base formula.

Answer 20

ok