Homework Help: College Algebra

Posted by coried on Wednesday, August 26, 2009 at 1:47pm.

Solve the equation.

e^5x = 2

a. 2/5 e
b. in2/5
c. 5 in 2
d. in5/2

College Algebra - coried, Wednesday, August 26, 2009 at 1:51pm
typo those answers contain L's not I's
College Algebra - MathMate, Wednesday, August 26, 2009 at 2:52pm
Using the relation
ln(e^x = x

For
e^5x = 2
Take natural log on both sides,
ln(e^5x) = ln(2)
5x = ln(2)
x = ln(2) / 5
Now make your pick for the answer.
College Algebra - bobpursley, Wednesday, August 26, 2009 at 2:55pm
take the ln of both sides
5x=ln2
x= 1/5 ln2

so, none of the choices are correct, unless on answer b you meant 1/5 ln2

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