Question

Simplify: 7.63 x 104

76,300
7,630,000
0.000763
0.0000763

Answer 1

A. 76,300

Explanation:

Step 1: Identify the exponent in the power of 10.

The exponent is 4

Step 2: Move the decimal that many places to the right if the exponent is positive and to the left, if the exponent is negative.

The exponent is positive so you move to the right.

7.63 would turn into 763

Step 3: Fill in any empty spaces with zeros.

the exponent is 4 so after moving the decimal 4 spaces to the right it will become 7,6300. pretend the comma in 7,6300 is a decimal. "7.63"

there are only 2 spaces before the decimal and the exponent is 4. so you add 2 more zeros so that there are 4 places before the decimal.

so the answer is 76,300