SOLUTION: (5×10^7)(9×10^3)/4×10^7
(5×10^4)(9×10^−7)/1.5×10^−8
6×10^15/4×10^13
All of these need to be in scientific notation but I don't know how to do it. Please help m
Algebra.Com
Question 1056345: (5×10^7)(9×10^3)/4×10^7
(5×10^4)(9×10^−7)/1.5×10^−8
6×10^15/4×10^13
All of these need to be in scientific notation but I don't know how to do it. Please help me :( !!
Found 2 solutions by Fombitz, stanbon:
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
Multiply/divide the constants (mantissa in scientific notation talk), add/subtract the exponents, simplify as needed.
The mantissa has to be between 1 and 10.
or
Do the remaining two in a similar manner.
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
(5×10^7)(9×10^3)/4×10^7 = [5*9/4][10*7*10^3/10^7] = 11.25*10*3
= 1.125*10^4
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(5×10^4)(9×10^−7)/1.5×10^−8 = [5*9/1.5][10^4*10^-7/10^-8] = 30*10^5
= 3.0*10^6
--------------------------
6×10^15/4×10^13 = [6/4][10^2] = 1.5*10^2
-------------------------------------------------
Cheers,
Stan H.
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