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(1.6x10^12) divided by (8.01x10^23) =?

1 Answer

5 votes

Answer:

1.99750312 * 10 ^(-12)

Explanation:

When we divide numbers in scientific notation

1.6*10^12

----------------

8.01 * 10^23

We divide the numbers out front and subtract the exponents on the powers of 10

(1.6/8.01) * 10^(12-23)

.199750312 * 10^(-11)

But this is not proper scientific notation. We need 1 number in front of the decimal. If we move the decimal 1 place to the left, we subtract 1 from the exponent

1.99750312 * 10 ^(-11-1)

1.99750312 * 10 ^(-12)


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