if (0.125)^3 can be written as 2^a. Find the value of a?
Thank you!
If you are able to explain that would be most appreciated!!
Note that ( .125) = 125/1000 = [25 * 5] / [ 200 * 5 ] = 25 / 200 = 1 / 8
So we have (1/8)^3 = ( 1/2^3)^3 = 1/2^9
1 / 2^9 = [ remember that 1/ b^n = b^(-n) ]....so.....
1/2^9 = 2^(-9)
So "a" = -9
oh, duh! thanks! that helps a lot!
OK!!!!
