Twice the sum of a number and negative nine is twenty. which of the following represents the number? a.) -1 b.) 14.5 c.) 1 d.) 19

Astudent received the following grades last semester. find the student's semester grade point average. an a is algebra (3 credits), a b in history ( 3 credits), a in sociology ( 3 credits) a d in english ( 3credits) and a c in seminar ( 2credits). an a is worth 4 points, a b is worth 3 points a c is worth 2 points and a d is worth 1 point.

Describe the 2 algebraic methods you can use to find the zeros of the function f(t)=-16t^2+400.

Three times the sum of a number and seven is negative thirty-six. what is the number?