If f(x) = x^2 – kx – 3 and f(2)= 9, then
k =

(a) -5

(b) 4

(c) 2

(d) 4

(e) 9

Simplify 4 square root of 2 end root plus 7 square root of 2 end root minus 3 square root of 2 . (1 point) 2 square root of 8 8 square root of 2 8 square root of 6 6 square root of 8

Mrs. morton has a special reward system for her class. when all her students behave well, she rewards them by putting 3 marbles into a marble jar. when the jar has 100 or more marbles, the students have a party. right now, the the jar has 24 marbles. how could mrs. morton reward the class in order for the students to have a party?

Solve for x and y: 217x + 131y = 913; 131x + 217y = 827