In planning for a trip, Joan estimated both the distance of the trip, in miles, and her average speed, in miles per hour. She accurately divided her estimated distance by her estimated average speed to obtain an estimate for the time, in hours, that the trip would take. Was her estimate within 0.5 hour of the actual time that the trip took? (1) Joan’s estimate for the distance was within 5 miles of the actual distance. (2) Joan’s estimate for her average speed was within 10 miles per hour of her actual average speed.

The circumference of a circle is 60 pi cm3what is the radius of the circle

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:

Simplify 15(x - 4)(x -1)-3(x + 4)(x - 1) with steps