Calculate the discrimination to determine the number of real roots y=x^2+3x+9 how many real roots does the equation have? a) one real root b) two real roots c) no real roots d) no solution to the equation

Find the slope of the line below . enter your answer as a fraction or decimal. use a slash mark ( / ) as the fraction bar if necessary

How do i simply this expression (quadratic formula basis) on a ti-84 or normal calculator?

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.