Powers: Scientific Notation
Which of the following best approximates $$0.2 \times 0.3 \times 0.4 \times 0.5$$?
Incorrect.
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Correct.
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>$$0.2 \times 0.3 \times 0.4 \times 0.5$$
>$$= (2 \times 10^{-1}) \times (3 \times 10^{-1}) \times (4 \times 10^{-1}) \times (5ยท10^{-1})$$
>$$= (2 \times 3 \times 4 \times 5) \times (10^{-1} \times 10^{-1} \times 10^{-1} \times 10^{-1})$$
>$$= 120 \times 10^{-4}$$
Since this decimal in scientific form has a -4 power of 10, shift the decimal point four places to the left.
>$$120 \times 10^{-4}= 0.0120 \approx 0.01$$
Incorrect.
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Incorrect.
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Incorrect.
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0.1
0.01
0.001
0.0001
0.00001
