What describes θ when an ellipse is created from an intersection of a plane and double-napped cone? θ = α
θ = 90⁰
α < θ < 90⁰
0⁰ ≤ θ < α

What is the first quartile of the data set? 10, 11, 12, 15, 17, 19, 22, 24, 29, 33, 38 a. 12 b. 19 c. 29 d. 10

In the 30-60-90 triangle below side s has a length of and side r has a length

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