Find the possible value or values of r in the quadratic equation r2 – 7r – 8 = 0.

a. r = 8, r = –1 b. r = 2/3, r = 5 c. r = –10, r = 3 d.

Find the roots of the equation below. x^2 - 6 + 9 = 0

Students are given 3 minutes to complete each multiple-choice question on a test and 8 minutes for each free-responsequestion. there are 15 questions on the test and the students have been given 55 minutes to complete itwhich value could replace x in the table? 5507-m23-m8(15-m)8(15)-m

What is the point of inflection for the function f(x)=2cos4x on the interval (0, pi/2)