For 0° ≤ x < 360°, what are the solutions to cos(x/2) – sin(x) = 0? A{0°, 60°, 300°}
B{0°,120°, 240°}
C{60°, 180°, 300°}
D{120°,180°, 240°}
Precalc

Find the missing factor. 7s2 + 25s + 12 = (s + 3)( ).

What is the standard form of -5x^2+2x^4-11+x^3+3x

Mrs. morton has a special reward system for her class. when all her students behave well, she rewards them by putting 3 marbles into a marble jar. when the jar has 100 or more marbles, the students have a party. right now, the the jar has 24 marbles. how could mrs. morton reward the class in order for the students to have a party?