Which shows a perfect square trinomial?

50y2 - 4x2

100 - 36x2y2

16x2 + 24xy + 9y2

49x2 - 70

2 kilograms + 500 grams

The equation h=-16t^2 + "120t" models the height h in feet of a toy rocket t seconds after it was launched into the air from your neighbors back yard at 120 feet per second. A. How long was the rocket in the air? B.

14 2/3 divided by 3/4

Which value of a from the set {16, 18, 20, 22} makes the equation 2 (42 - a) = 48 true?

True or false? A distribution is symmetrical if the tails on both ends of the density curve that represents it are close to identical.

You roll a pair of six sided number cube. What are the total outcomes

Determine the y-intercept for 3x + 2y = 14. A) (0, 2) B) (0, 7) C) (2, 0) D) (7, 0)

Give a recursive algorithm matrix-chain-multiply (a, s, i, j) that actually performs the optimal matrix-chain multiplication for a chain of matrices

Solve the equation. - 49f=-3 f=

Let $b$ and $c$ be constants such that the quadratic $-2x^2 + bx + c$ has roots $3+/sqrt{5}$ and $3-/sqrt{5}$. Find the vertex of the graph of the equation $y=-2x^2 + bx + c$.