a scale drawing of a rectangular room measures 3 1/2 inches by 1 1/2 inches. The scale is 1/4 inch = 2 feet. Carpeting costs $10 per square foot. How much will it cost to buy enough carpeting to cover the floor of his room?

Step-by-step explanation:

138

answer: there are 453.592 grams in a pound.

x= -3 and

step-by-step explanation:

to find the roots of a cubic, use division or factoring to find the factors then set equal to 0. as this is a difference of cubes, it factors into

where a is the cube root of .

here   this is 27 and the cube root of 27 is 3. so we write using the form:

.

set each factor to 0 and solve for x.

x-3=0

x=3

the quadratic expression does not factor and must be solved using the quadratic formula.

where a = 1, b=3, and c=9

this cubic has two complex roots.