Which function is equivalent to q(x)=9x2-24x+16

Describe all the numbers that when rounded to the nearest thousand are 645,000

20 solve 2(4 x + 3) < 5 x + 21. a) { x | x < 9} b) { x | x > -5} c) { x | x > -9} d) { x | x < 5}

Given the diagram below, michael writes, "segment ac is congruent to segment ac." which of the following reasons allow him to write this statement?