Question

12*10^4 /
3*10^-2

Answer 1

Perform the indicated computation. Write the answer in scientific notation.
A. 8 x 10^2
B. 4 x 10^6
C. 4 x 10^2
D. 8 x 10^6

Answer 2

Since in scientific notation the base is always 10, you can perform arithmetic on the coefficient (12 and 3 in this case) and then the base number 10.

12/3 = 4

10^4/10^-2 = 10^6 (when dividing exponential numbers with the same base, you keep the base and subtract the exponents)

so 4 - (-2) = 6

the answer is 4 x 10^6