Question

the base Dimensions of a rectangular box are 1.5×10 to the second power centimeters by 4.3×10 to the first power centimeters find the base area of the box right answer and say scientific notation and round coefficients to the nearest

Answer 1

`Area = 6.5 * 10^3cm^2` or
`Area = 6.5E3\ cm^2`

Explanation:

Given

`Width = 1.5 * 10^2cm`

`Length = 4.3 * 10^1cm`

Required

Determine the Area

The base area is calculated as:

`Area = Length * Width`

`Area = 1.5 * 10^2cm * 4.3 * 10^1 cm`

Reorder the expression

`Area = 1.5 * 4.3 * 10^1 cm* 10^2cm`

`Area = 6.45 * 10^1 cm* 10^2cm`

Apply law of indices

`Area = 6.45 * 10^(1+2)cm^2`

`Area = 6.45 * 10^3cm^2`

Approximate

`Area = 6.5 * 10^3cm^2`

or

`Area = 6.5E3\ cm^2`