What is the value of the discriminant, b? - Aac, for the quadratic equation 0 - x2 - 4x + 5, and what does it mean about the number of real solutions the equation has?

The graph below represents the number of dolphins in a dolphin sanctuary. select all the key features of this function.

33% of college students say they use credit cards because of the rewards program. you randomly select 10 college students and ask each to name the reason he or she uses credit cards. find the probability that the number of college students who say they use credit cards because of the rewards program is (a) exactly two, (b) more than two, and (c) between two and five inclusive. if convenient, use technology to find the probabilities.

Simplify this expression.2(10) + 2(x – 4) a. 2x + 16 b. x + 12 c. 2x + 12 d. x + 16