The profit of a cell-phone manufacturer is found by the function y = -2x^2 + 108x + 75 , where x is the cost of the cell phone. At what price should the manufacturer sell the phone to maximize its profits? What will the maximum profit be? Note: Please answer both questions!

Ahas the coordinates (–4, 3) and b has the coordinates (4, 4). if do,1/2(x, y) is a dilation of △abc, what is true about the image △a'b'c'? check all that apply. ab is parallel to a'b'. do,1/2(x, y) = the distance from a' to the origin is half the distance from a to the origin. the vertices of the image are farther from the origin than those of the pre-image. a'b' is greater than ab.

Abee with velocity vector r'(t) starts out at (5, −5, −3) at t = 0 and flies around for 5 seconds. where is the bee located at time t = 5 if 5 0 r'(u)du = 0?

For f(x)=2x+1 and g(x)= x^2 -7, find (f•g)(x)