**HELP NEEDED PLEASE!!* The Richter Scale is used to measure the magnitude of an earthquake. The magnitude, (R), is given by the equation R=0.65log(0.39E) +1.45, where E is the energy released by the earthquake. Determine the magnitude of 7.5.

Question

anonymous · Answer

Simplify so that the answer is written in form b=log a

ganpat · Answer

U mean, Determine energy released ??

anonymous · Answer

I'm not sure, the question said determine the magnitude, but it's probably a mistake

anonymous · Answer

I got the answer of E = 5207481079.2429121, but I just don't no how to write it in form b=loga

ganpat · Answer

ok, if u can use the calculator, 

Than calculate for E by substituting R in above given equation..

anonymous · Answer

I found E, but I just don't know how to write it in proper form, b=loga

ganpat · Answer

7.5/0.65 = log (0.39E)

11.53 = log (0.39E)...

does it make sense :-p

anonymous · Answer

yes thank youu. so would that be the final answer?

anonymous · Answer

wait, what about the 1.45?

ganpat · Answer

i guess so, substituting value of E will extend beyond limit.. 

or you can try to bring out  0.39 out of it ..

ganpat · Answer

bring it on left hand side and subtract to 11.53

ganpat · Answer

i missed that :D, i miss a lot man..

anonymous · Answer

lol. thanks so much! you practically just saved my life. haha like not even kidding.

ganpat · Answer

11.53 = log (0.39E) + 1.45 

11.53 - 1.45 = log (0.39E)

10.08 = log (0.39E)

ganpat · Answer

my pleasure bro !!! :)

anonymous · Answer

***girl :)

ganpat · Answer

oopsss. sorry !!

anonymous · Answer

its all good