Solve the problem.A person standing close to the edge on top of a 112-foot building throws a baseball vertically upward. The quadratic equation 
models the ball's height above the ground, 
in feet, t seconds after it was thrown. How many seconds does it take until the ball finally hits the ground? Round to the nearest tenth of a second if necessary.
A. 1.3 seconds
B. 2 seconds
C. 176 seconds
D. 5.3 seconds
Answer: D
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Sketch a typical level surface for the function.f(x, y, z) = 8e8(y2 + z2)
A. 
B. 
C. 
D. 
Provide an appropriate response.Decide if the system has one solution, no solution, or an infinite number of solutions.2x - 4y = 2 y = 
x - 
A. No solution B. Infinite number C. One
Simplify.
A. 
B. ± 
C. 0
D. - 
Solve the problem.Sue wants to put a rectangular garden on her property using 66 meters of fencing. There is a river that runs through her property so she decides to increase the size of the garden by using the river as one side of the rectangle. (Fencing is then needed only on the other three sides.) Let x represent the length of the side of the rectangle along the river. Express the garden's area as a function of x.
A. A(x) = 32x - 
x2
B. A(x) = 33x2 - x
C. A(x) = 33x - 
x2
D. A(x) = 34x - 2x2