Multiply, write result in scientific notation.

Question

15.(1.4x10^1)(8 x 10^4)

Answer 1

multiply the numbers first, 1.4x8
and then deal with the 10 to the power stuff (since the bases are the same we would add the exponents
(1.4x8)x10^5
but 1.4x8 is 11.2
so now we have
11.2x10^5
but in scientific notation you need a number between 1 and 10, thus 11.2 becomes
= 1.12x10^1 and we are still multiplying by 10^5
= 1.12 x 10^(1+5)
= 1.12 x 10^6

Answer 2

can i get 16 (1.7*10^-4)(5*10^-5)

Answer 3

No