1. ## integer exponents

Compute with the aid of a calculator. Write your answers in standard form.
(-------- = divide by)

48. a. (8.4*10^-22)(1.6*10^15)
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3.2*10^-11

b. (9.4*10^24)(7.2*10^-18)
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(4.5*10^26)(6.4*10^-16)

i don't know how to solve this.

2. Hello, comet2000!

Compute with the aid of a calculator.
$48\,(a)\;\;\frac{(8.4 \times 10^{-22})(1.6 \times 10^{15})}{3.2 \times 10^{-11}}$
We have: . $\frac{(8.4)(1.6)}{3.2} \times \frac{(10^{-22})(10^{15})}{10^{-11}} \;=\;4.2 \times 10^4$
$(b) \;\;\frac{(9.4 \times 10^{24})(7.2 \times 10^{-18})}{(4.5 \times 10^{26})(6.4 \times 10^{-16})}$
We have: . $\frac{(9.4)(7.2)}{(4.5)(6.4)} \times \frac{(10^{24})(10^{-18})}{(10^{26})(10^{-16})} \;=\;2.35 \times 10^{-4}$