Scientific Notation

8.9 x 10^2

0.0004 in scientific notation = 4 x 10^-4

485000 in scientific notation is 4.85 x 10^5

6.36 x 10^1

1.6e2 or 1.6 x 10^2

5.2683 x 10^4

8.104 x 10^2 or 8.104e+2

0.000408 can be written in scientific notation as 4.08 x 10^-4.

It is 7.0*10^7 in scientific notation

6.31 × 10-4

or

6.31E-4

8 x 10^(-4)

5.0 x 10-3

0.00012 = 1.2 × 10-4

0.00215 in Scientific Notation = 2.15e-3

9.0 x10^-3

8.7450 x 104

The scientific notation for 0.00142 is: 1.42 × 10-3

3.0523 x 107

It is approx 3*108 ms-1.

0.00257 in scientific notation is 2.57 x 10^-3

It is: 1.4*10^5

2.43 x 10^-3

There should be exactly one digit.

No, 14*10^8 is not is scientific notation. The mantissa (14) must be a number in the interval [1, 10).