In triangle RST, mzR> m2S + m2T. Which must be true of triangle RST? Check all that apply. mzR > 90°

mzs + mzT < 90°

mzs = m2T

mzR > m2T

mzR > MZS

mzs > m_T

Which graph corresponds to the function f(x) = x2 + 4x – 1?

Use the elimination method to solve the systems of equations. choose the correct ordered pair. 7x+4y=39

Aroulette wheel has 38 slots in which the ball can land. two of the slots are green, 18 are red, and 18 are black. the ball is equally likely to land in any slot. the roulette wheel is going to be spun twice, and the outcomes of the two spins are independent. the probability that it lands one time on red and another time on black in any order is(a) 0.5 (b) 0.25 (c) 0.4488 (d) 0.2244