Question

Solve the equation lnx=3. Round the answer to 4 decimal places

Answer 1

x=e^3

Answer 2

I got 1.09

Answer 3

Do e^3 on your calculator and see what it says. You can't do that one in your head.

Answer 4

ok

Answer 5

I got 1.7321

Answer 6

The constant 'e' is equal to 2.718... and thus raised to the 3rd power cannot equal 1.73

Answer 7

Oh...

Answer 8

How are you evaluating e^3?

Answer 9

I got 32.1387

Answer 10

You are doing something incorrectly, 3^3 is 27, so e^3 cannot be more.

Answer 11

Does your calculator have an e? or can you take 2.718 and raise it to the 3rd power?

Answer 12

Even better, type e^3 on Google :)

Answer 13

OK...i figured out the problem

Answer 14

There ya go, that makes it easy. Good call @FutureMathProfessor

Answer 15

20.0855

Answer 16

Yes, good work.

Answer 17

Congrats oHolmes! :)

Answer 18

Oh haha I was thinking it was 10043/500 and in decimal form it's 20.086

Answer 19

Actually to solve this you would raise each side to a power of e since e^{lnx} = x, also giving you e^{3} on the other side.