Question

What Is The Quotient Written In scientific notation?
3x10^20
________
4x10^5
A. 7.5 x 10^3
B. 0.75 x 10^4
C. 7.2 x 10^14
D. 7.5 x 10^15

Answer 1

HI!!

Answer 2

is it \[\huge \frac{3\times 10^{20}}{4\times 10^5}\]

Answer 3

hi! and yes

Answer 4

ok first off \[\frac{3}{4}=.75\] right?

Answer 5

yep

Answer 6

and \[\frac{10^{20}}{10^5}=10^{20-5}=10^{15}\]

Answer 7

so one answer (not the final answer though) is \[.75\times 10^{15}\]

Answer 8

that is not scientific notation because \(.75<1\) so you have to rewrite it as
\[7.5\times 10^{14}\]

Answer 9

thank u!! :)