Question

could someone help me with this:

Answer 1

@satellite73

Answer 2

\[2^{b+1}=7.31\\
b+1=\frac{\ln(7.31}{\ln(2)}\]

Answer 3

i assume you want a numeric answer

Answer 4

for \(b\) right?

Answer 5

yes

Answer 6

that makes
\[b=\frac{\ln(7.31)}{\ln(2)}-1\] and a calculator

Answer 7

yes that is what i did and i got 1.18699, right?

Answer 8

i didn't do it hold on

Answer 9

http://www.wolframalpha.com/input/?i=log%287.31%29%2Flog%282%29-1

Answer 10

so we did it right!

Answer 11

but my math teacher go a different answer

Answer 12

1.86987...

Answer 13

3.8699 is what my math teacher got

Answer 14

do you think he did it wrong?

Answer 15

well either there is a typo in your question or your math teacher did it wrong