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3 years ago

Use scientific notation to find the product of 20.5 × 10^7 and 0.000036."

Mathematics

2 answers:

Mariana [72]3 years ago

7 0

With RedRicin's Explantion, the formula gets simplified to 7.38 x 10^3

ipn [44]3 years ago

5 0

You can express 0.000036 as 3.6 × 10^-5 (we move the decimal 5 places left)

Then we find 3.6 × 10^-5 × 20.5 × 10^7
The exponents add to become just 10^2.
3.6 × 20.5 = 73.8

73.8 × 10^2 is our answer...
In proper scientific notation, this is 7.38 × 10^3. (the left # should be <10)
In standard notation, this is 7380. (we move the decimal 3 places right)

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