Simplify: 1 / x - 10 % 9x / x^2 - 9x -10

Match each polynomial with its factorization.

Write the equation for the parabola that has x− intercepts (−2,0) and (4,0) and y− intercept (0,4).

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.