Three pipes can be used to fill up a swimming pool with water. It takes
9 minutes for Pipe A to fill up the pool
while 6 minutes for Pipe B. A third pipe,
Pipe C, takes 4 minutes to empty the
pool. How long would it take to fill the
swimming pool given these conditions?

Acircle has a diameter will endpoints of (-2,8) and (6, 4). what is the center of the circle

The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 0 a. at what time does the particle reverse direction? b. when is the displacement positive? (round one decimal place and answer in interval notation) c. when is the displacement negative? (round one decimal place and answer in interval notation) d. when is the particle’s acceleration positive? (round one decimal place and answer in interval notation) e. when is the particle’s acceleration negative? (round one decimal place and answer in interval notation)

What is the value of the discriminant of the quadratic equation -2x = -8x + 8 and what does its value mean about thenumber of real number solutions the equation has?