Which quadratic equation has real solutions? A. 4x^2 -5 = -7
B. 2/3x^2 +7 = 11
C. 3x^2 -1 = 8x^2+9

What is the value of the expression 9+n/3-6 when n = 12? 1. 5. 7. 12.

Use the quadratic formula to solve the equation. if necessary, round to the nearest hundredth. x^2 - 23 = 10x a. -1.93, 11.93 b. 1.93, -11.93 c. 1.93, 11.93 d. -1.93, -11.93

Find the area between y=e^x and y=e^2x over [0,1]