A circle with center Q has four points A, B, C, and D on the circle. A segment from Q intersects the chord A D perpendicularly. Another segment from Q intersects the chord B C perpendicularly. The length of both of these segments is 5. The length of chord A D is 4 x plus 4 and the length of chord B C is 6 x minus 6. How do I solve this??? Find the radius of Q Is what I'm supposed to do.

An architect is designing a water fountain for a park she uses the given function to model the water jet flowing from the fountain nozzles where h(x) gives the height of the water jugs in feet x feet from the starting point h(x)=-1/20x+x+15

You drop a rubber ball off the roof of a 50 meter high building onto a paved parking lot. it bounces back up with every bounce, but not quite all the way back up to you. after the first bounce it bounces back only 80 percent of the distance it was dropped from. the pattern continues, meaning after every bounce it comes up to just 80 percent of the previous maximum height. so if before the first bounce the height is 50 meters, what height does the ball reach after the fifth bounce? round your answer to one decimal place and chose the correct response from the choices below:

What expression is equivalent to 42x-56y