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DedPeter [7]
3 years ago
5

HELP ME!!! Answer in Scientific Notation and explain and show work.

Mathematics
1 answer:
umka21 [38]3 years ago
7 0
Multiplying means you add the exponents and dividing means you subtract the exponents. Treat the decimals as you normally would.
(4.3 \times  {10}^{8} ) \times (2.0 \times  {10}^{6} )
4.3 \times 2.0 = 8.6
8 + 6 = 14
8.6 \times  {10}^{14}

(6 \times  {10}^{3} ) \times (1.5 \times  {10}^{ - 2} )
6 \times 1.5 = 9
3 +  - 2 = 1
9 \times  {10}^{1}


(1.5 \times  {10}^{ - 2} ) \times (8.0 \times  {10}^{ - 1} )
1.5 \times 8 = 12
- 2 +  - 1 =  - 3
12 \times  {10}^{ - 3}


\frac{(7.8 \times  {10}^{3}) }{(1.2 \times  {10}^{4}) }
\frac{7.8}{1.2}  = 6.5
3 - 4 =  - 1
6.5 \times  {10}^{ - 1}


\frac{(8.1 \times  {10}^{ - 2} )}{(9.0 \times  {10}^{2} )}
\frac{8.1}{9.0}  = 0.9
- 2 - 2 =  - 4
0.9 \times  {10}^{ - 4}


\frac{6.48 \times  {10}^{5} }{(2.4 \times  {10}^{4} )(1.8 \times  {10}^{ - 2}) }
2.4 \times 1.8 = 4.32
4 +  - 2 = 2
\frac{6.48 \times  {10}^{5} }{4.32 \times  {10}^{2} }
\frac{6.48}{4.32}  = 1.5
5 - 2 = 3
1.5 \times  {10}^{3}
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