## anonymous 5 years ago Solve. Answers should be in Scientific Notation. (3.2 x 10^4) x (1.4 x 10^3) (8.4 x 10^8) / (2.2 x 10^2)

1. anonymous

2.0

2. anonymous

for the first

3. anonymous

Do you solve the actual notation before you compute, or is there a way to compute it without having to do all of that?

4. anonymous

the actual notation

5. anonymous

$(3.2 \times 10^4) \times (1.4 \times 10^3)$ $=(3.2\times 1.4)\times 10^{4+3}=4.48\times 10^7$

6. anonymous

similarly, $(8.4 \times 10^8) \div (2.2 \times 10^2)=8.4\div 2.2\times 10^{8-2}=3.82\times 10^6$ but $\frac{8.4}{2.2}=\frac{84}{22}=\frac{42}{11}$ and non repeating non terminating decimal