Express the answer in scientific notation and with the correct number of significant figures: (6.32 x 10-4) ÷ 12.64

The correct answer is: 5 * 10 ^ -5

Explanation:

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To write a number in scientific notation, we have to grab, from the number to convert, the numbers that are between 0 and 9. Then we will count the places that we moved the point. If we move it to the left, the exponent of 10 is positive.

If, on the contrary, we move the point to the right, the exponent of 10 is a negative number.

In this case, the operation to be performed is: (6.32 x 10-4) ÷ 12.64 = 5 * 10 ^ -5

We conclude that the correct answer is: 5 * 10 ^ -5

the mantle

explanation:

earth is divided into three layers: the crust or the outermost layer on which we live; the underlying, middle layer - the mantle - and the core (the innermost layer of earth).

i just calculated it all out, and not including weekends, and all the different days off. as of this school year (2018-2019) students are spending 2198 hours in school this year