Which of the following expressions is equivalent to (12x4−4x3+7x+6)+(3x2−4x+14)? A 12x4−4x3+3x2+3x+20 B 12x4−x3+3x+20 C 15x6−8x4+21x+6 D 15x6−4x3+3x+20

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

Aladder that is 20ft long is leaning against the side of a building. if the angle formed between the ladder and the ground is 75 degrees how far is the bottom of the from the base of the building?

Which of the following is best modeled using a linear equation y=ax+b, where a is less than 0?