SOLUTION: we are told to carry out the equation. the answer is to be expressed to the proper number of significant figures 0.786 x 10`7(neg. 7exponent) __________ 0.47 x 10 7 (+7expon

Algebra ->  Exponents -> SOLUTION: we are told to carry out the equation. the answer is to be expressed to the proper number of significant figures 0.786 x 10`7(neg. 7exponent) __________ 0.47 x 10 7 (+7expon      Log On


   

Question 25397: we are told to carry out the equation. the answer is to be expressed to the proper number of significant figures
0.786 x 10`7(neg. 7exponent)
__________
0.47 x 10 7 (+7exponent)
this is a division problem
I am struggling through this chem class. I haven't had algebra or chem in 13 yrs. PLEASE help
Answer by longjonsilver(2297) About Me  (Show Source):
You can put this solution on YOUR website!
you don't say if you can use a calculator...use that perhaps?

anyway...
%280.786%2A10%5E%28-7%29%29%2F%280.47%2A10%5E%287%29%29

do the 2 sets of numbers...0.786/0.47 is 1.67234

As for the powers...we have division, so the powers subtract...so -7 - +7 is -7-7 which is -14, so together we have:

1.672%2A10%5E-14

jon