Find the quotient of -5x^3+20x^2-25x/-5x a: -5x^3+20x^2+5 b: x^2-4x+5 c: -x^2-4x+5 d: x^2+4x-5

The number if marbles of different colors stored in a hat is listed below: 4 red marbles 10 green marbles 7 blue marbles. without looking in the hat, dan takes out a marble at random. he replaces the marble and then takes out another marble from the hat. what is the probability that dan takes out a blue marble in both draws?

Is the power produced directly proportional to the wind speed, give reasons for your answer?

Atrain leaves little? rock, arkansas, and travels north at 90 kilometers per hour. another train leaves at the same time and travels south at 80 kilometers per hour. how long will it take before they are 680 kilometers? apart?