Question

Multiply and answer in scientific notation: (3.8 x 108)(6.9 x 105)
A) 2.622 x 1013
B) 2.622 x 1014
C) 26.22 x 1013
D) 26.22 x 1014

Answer 1

B) 2.622 x 10^14 hopes this help i am late for the answer ^-^'

Answer 2

we have

$(3.8*10^{8})*(6.9*10^{5})$

Combine like terms

$(3.8*10^{8})*(6.9*10^{5})=(3.8*6.9)*(10^{8}*10^{5})$

Multiply

$=(26.22)*(10^{8+5})$

$=(26.22)*(10^{13})$

$=(2.622*10)*(10^{13})$

$=(2.622)*(10^{13+1})$

$=(2.622)*(10^{14})$

therefore

the answer is the option B

$(2.622)*(10^{14})$