Select all of the following that are quadratic equations.

3 x^2 + 5 x - 7 = 0

x^3 - 2 x^2 + 1 = 0

2 x - 1 = 0

5 x^2 + 15 x = 0

6 x - 1 = 4 x + 7

x^2 - 4 x = 4 x + 7

If f (x) = 2^x, the f (x+2) - f (x-2) = a) 17/2^x b) 15·2^ (x-2) c) 17·2^ (x-2) d) 15·2^x e) 17·2^x

Javier is evaluating the expression (-8) [10 + (-5) + (-8) ] Multiplying the numbers 10, - 5, and - 8 by a certain number and then adding the three products together will give Javier the fully simplified evaluated expression. What is that number?

Out of 16 spins, a purple and red spinner landed on purple 9 times and on red 7 times. Based on the experimental probability, how many of the next 64 spins would you expect to land on red? A. 28 B. 29 C. 30 D.

if you flip a coin and roll a 6-sided die, what is the probability that you will flip a tails and roll a 2?

Susan Marciano invested part of her 40,000 bonus in a fund that paid an 11% profit and invested the rest in stock that surffered a 3% loss. Find the amount of each investment if her overall net profit was $1180.

X-35>15 and solve inequality

Name the lengths of the sides of three rectangles with perimeters of 12 units.

The decimal number 0.25 is an exsample of a terminating decimal

Which equation is the inverse of y=x^2+16

Y = 15 * 3 ^x for x = - 3