William and stephanie are playing a rather dangerous game of catch on the rooftops of skyscrapers in downtown chicago. william is preparing to throw a tennis ball off the roof of the john hancock center, 1130 feet above street level. stephanie is waiting to catch the ball on the rooftop of the neighboring water tower place, 830 feet above street level. william throws the ball, which leaves his hand with an upward velocity of 46 feet per second, and travels in a parabolic path. stephanie catches the ball exactly 6.0 seconds after it is thrown. create a quadratic function describing the height of the ball above the street level with respect to time.

The average hourly earnings for a construction worker is projected to be $24.50 in 2012. jason wants to join the construction work force after he graduates in 2012. his friend tells him that average hourly earnings for construction workers will rise by 2% from 2009 to 2012. based on the data below, assuming that the projected hourly earnings are correct, is jason’s friend’s statement accurate? construction industry - average hourly earnings, 2000-2009 a. his friend’s statement is accurate. the average hourly earnings will increase by 2%. b. his friend’s statement is not accurate. the percent increase will be more than 2% c. his friend’s statement is not accurate. the percent increase will be less than 2% d. his friend’s statement is not accurate. the average hourly earnings will decrease

Match the equivalent expressions. x - 3y + 12 12 - 3y - 2x + x + 2x 3x + 2y - 2x + y + 12 3y + 12 3x + y - 12 4y + 3y + 3x - 6y - 10 - 2 x + 3y + 2x - 3x + 7 + 5 x + 3y + 12 5 + 2y + 7x - 4x + 3y - 17

This is so hard and it’s for a test