## anonymous one year ago 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

1. misty1212

HI!!

2. misty1212

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

3. anonymous

hi! and yes

4. misty1212

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

5. anonymous

yep

6. misty1212

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

7. misty1212

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

8. misty1212

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

9. anonymous

thank u!! :)