Maya is solving the quadratic equation by completing the square. 4x2 + 16x + 3 = 0 what should maya do first? isolate the variable x2. subtract 16x from both sides of the equation. isolate the constant. factor 4 out of the variable terms.

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:

The parabola x= √y-9 opens: a.)up b.)down c.)right d.)left

Fanny mendelssohn manages all the magazines and paperback books at a local grocery store. she prices many paperbacks to sell at $7.99. the cost to the store is $5.29. what is the markup rate on a paperback book, based on its cost?