The figure shows the graph of y = -ax^2 + bx+c. Suppose that the points (-h, y0), (0,y1), and (h, Y2)
are on the graph. The area enclosed by the parabola,
the x-axis, and the lines x= -h and x=h may be given
by the following formula.
Area h/3( y0 +4y1 + y2)
The area is ?

Aswimming pool has an input pump for filling the pool and an output pump for emptying the pool. the input pump can fill the pool in 3 hours, and the output pump can drain the pool in 5 hours. as you go to bed, the pool is full, but a neighbor’s kid turns on the output pump. at midnight, you awake to find the pool half empty. immediately, you turn on the input pump, but you are sleepy and forget to turn off the output pump. at what time will the pool become full?

Atriangle with all sides of equal length is a/an triangle. a. right b. scalene c. equilateral d. isosceles

If 7x=9y, y/z = 7/5 , then x/z = (a) 2/7 (b) 7/9 (c) 9/5 (d) 9/7 (e) 5/9