## lemonjuice Group Title Which of the following is equivalent to log 8 35 rounded to three decimal places 2 years ago 2 years ago

• This Question is Open
1. lemonjuice Group Title

do I need a calculator for this

2. Calcmathlete Group Title

Do you mean $$\log_8 35?$$

3. lemonjuice Group Title

yes

4. Calcmathlete Group Title

Yes. You do need a calculator, but you also need to do something else before you do. Most calculators are programmed to use only base 10 and base e. THerefore, you need to use the change of base formula to plug it into a calculator. $\log_by = \frac{\log_cy}{\log_cb}$Knowing this, what would $\log_8 35$be?

5. lemonjuice Group Title

does it have to be a graphing calculator because I cant find that on mine

6. Calcmathlete Group Title

Only has to be a scientific calculator.

7. lemonjuice Group Title

I have a TI-15 and cannot find the log button

8. Calcmathlete Group Title

Alright. I am unfamiliar with that, so I'm just going to redirect you to wolfram...just make sure that you understand the change of base formula because that's ll this wants you to do. http://www.wolframalpha.com/input/?i=log+35%2Flog+8

9. lemonjuice Group Title

ok thx

10. Calcmathlete Group Title

np :)

11. lemonjuice Group Title

so i is 1.709

12. robtobey Group Title

$8^{(1.7097610056483221518)}=35.00000000000000000$