Acivil engineer is preparing to build a bridge. the bridge needs to be able to hold a maximum of 20 cars. the average car weighs approximately 3,000 pounds. if the engineer builds the bridge twice as strong as necessary, how many tons should the bridge be able to hold?

What are the solutions of the system? solve by graphing. y = -x^2 - 3x + 2 y = -2x + 2

Worth 100 points need the answers asap first row -x^2 2x^2 (x/2)^2 x^2 x is less than 2 x is greater than 2 x is less than or equal to 2 x is greater than or equal to 2 second row -5 -5/2 4 5 •2 is less than x& x is less than 4 •2 is less than or equal to x & x is less than or equal to 4 •2 is less than or equal to x& x is less than 4 •2 is less than x& x is less than or equal to 4

What is the length of the segment, endpoints of which are intersections of parabolas y=x^2− 11/4 x− 7/4 and y=− 7 /8 x^2+x+ 31/8 ?