The cone shown has a radius of 5 inches and a slant height of 8 inches. rounded to the nearest whole number, what is the total surface area? use 3.14

Express the following as a function of a single angle, cos(60) cos(-20) - sin(60) sin(-20)

Louis wants to carpet the rectangular floor of his basement.the basement has an area of 864 square feet.the width of the basement is 2/3 it's length. what is the length of louis's basement

Find the least common multiple of the expressions: 1. 3x^2, 6x - 18 2. 5x, 5x(x +2) 3. x^2 - 9, x + 3 4. x^2 - 3x - 10, x + 2 explain if possible