Each side of a suspension bridge has a cable that is secured at either end of the span by two supporting towers. The cable is attached to the tops of the two towers. In the section between the two towers, the cable forms a parabolic curve. At its lowest point, the cable is 40 feet above the surface of the bridge. The towers are 450 feet apart, and the vertical distance from the surface of the bridge to the top of each tower is 500 feet. Use the left tower as the y-axis. Hint y=a(x-h)2+ k

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Step-by-step explanation:

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tickets for the harlem globetrotters

show at michigan state university in

2010 cost $16, $23, or, for vip seats, $40.

total revenue = 16x + 23y + 40z

if 9 times as many $16 tickets were sold

as vip tickets,

x = 9z => x – 9z = 0, if 9 times as many $16 tickets were sold

as vip tickets,

x = 9z => x – 9z = 0, sales of all three kinds of tickets would

total $46,575.

16x + 23y + 40z = 46575, how many of each kind of ticket would

have been sold?

solve for x, y and z

x − 9z = 0

x − y − z = 55

16x + 23y + 40z = 46575

x = 1170

y = 985

z = 130

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