Question

4. An expression is shown.

4x106
2x 102
Write an equivalent expression in scientific notation.
x 10

Answer 1

Explanation:

The simplest way to do this is to break in into parts

• 2 * 4 = 8
• 10^6 * 10^2 = 10^8 Notice that when you multiply base 10 powers, you add the powers. That's the key to scientific notation.

When you combine these two you get 8 * 10^8