Scientific Notation

7.2*10-5

91256 in scientific notation is 9.1256 x 10^4

4.382 = 4.382 x 10^0

1.4246 x 10^9

It is: 5.81*10^-5

4.81 x 10^13

89,000,000,000 in scientific notation is: 8.900000e+10

0.0007 = 7x10-4

0.07882 in scientific notation = 7.882 × 10-2

0.68 x 10-2

How many places would you have to move the decimal point to leave one non-zero digit? 6

So

0.000253 can be written as 2.53 × 10-4 in scientific notation.

8,915,000,000 can be written as 8.92 × 109 in scientific notation.

2.204 X 109

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The trailing zeros are superfluous.

It is 3.4*10^8.

It is 5.66*10^-3 in scientific notation

9.8856e4 or 9.8856 x 104

0.0089 = 8.9x10-3

0.00082 = 8.2*104

-1.6 x 10^-19 [that's ten raised to the -19 power]. To figure it, there are 18 zeros between the decimal point and the first non-zero (the 1). So moving the decimal to the right 19 places will give you -1.6; since you moved it 19 places, the power of ten is -19 {negative power for numbers magnitude less than one, positive powers of ten for numbers magnitudegreater than 10, and 10^0 for numbers magnitude between 1 and 10}

3.1556952 x 10 to the 10th power

5.4 x 10^9 or 5.4e+9

93.5 = 9.35 × 101

7.86 * 10^-7

9 x 10-2.