Which of the following quadratic equations have two real solutions? Select all that
apply.
 9^2 − 12 + 4 = 0
 −^2 = 4 − 5
 2^2 − 8 = 24
 5^2 − 10 = 3
 ^2 − 2 = −5

What is (28 + 7 + 6 + 3) x 1/2 show your work

You're locked out of your house. the only open window is on the second floor, 25 feet above the ground. there are bushes along the edge of the house, so you will need to place the ladder 10 feet from the house. what length ladder do you need to reach the window?

1) prove that 731^3−631^3 is divisible by 100 2) prove that 99^3−74^3 is divisible by 25