Answer: It does not matter whether you multiply the radicands or simplify each radical first. You multiply radical expressions that contain variables in the same manner. As long as the roots of the radical expressions are the same, you can use the Product Raised to a Power Rule to multiply and simplify.
Step-by-step explanation:
(1.9 x 10^3)(4.5 x 10^2) =
(1.9 x 4.5) x (10^3 * 10^2) =
8.55 x 10^5 or 855,000
It will be 41% in approximate:
.8*.8*.8*.8=.4096 or 41%
