How do you simplify (9 times 10^2)(2 times 10^10) and write the answer in scientific notation?
1 Answer
Jan 15, 2016
1.8 xx 10^13
Explanation:
using :
a^m xx a^n = a^(m + n ) then
( 9 xx 10^2 )( 2 xx 10^10 ) can be written : 9
xx 2 xx 10^2 xx 10^10 = 18 xx 10^12 now( 18 =
1.8 xx 10 = 1.8 xx 10^1)
rArr 18 xx 10^12 = 1.8 xx 10^1 xx 10^12 = 1.8 xx 10^13