What is the additive inverse of the polynomial - 9x * y ^ 2 + 6x ^ 2 * y - 5x ^ 3 ? - 9x * y ^ 2 - 6x ^ 2 * y + 5x ^ 3 - 9x * y ^ 2 - 6x ^ 2 * y - 5x ^ 3 9x * y ^ 2 + 6x ^ 2 * y + 5x ^ 3 9x * y ^ 2 - 6x ^ 2 * y + 5x ^ 3

Acomputer store bought a program at a cost of $10 and sold it for $13. find the percent markup

An office supply company conducted a survey before marketing a new paper shredder designed for home use. in the survey, 80 % of the people who tried the shredder were satisfied with it. because of this high satisfaction rate, the company decided to market the new shredder. assume that 80 % of all people are satisfied with this shredder. during a certain month, 100 customers bought this shredder. find the probability that of these 100 customers, the number who are satisfied is 69 or fewer.

(10. in the figure, a aabc is drawn tocircumscribe a circle of radius 3 cm ,such thatthe segments bd and dc are respectively oflength 6 cm and 9 cm. find the length ofsides ab and ac.