Question #c3c9a

1 Answer
Feb 23, 2017

Depends on what you are given.

Explanation:

If you are simply asked to give the scientific notation of a number, say 0.00000016, the decimal point ends up right after the FIRST whole number (except zero).

0.00000016 = 1.61.6 x 10^(-7)107
1,234,567,890 = 1.231.23 x 10^9109

The movement of decimal depends on what numbers you were given. A color(blue)(positive)positive exponent would mean that you have shifted the decimal from right to left.

1,000,000 = 1.01.0 x 10^6106
213,645.89 = 2.142.14 x 10^5105

A color(red)("negative")negative movement means that the decimal place moved from left to right.

0.004 = 4.04.0 x 10^(-2)102
0.00435 = 4.354.35 x 10^(-2)102