Solve the problem.A cross-section of an irrigation canal is a parabola. If the surface of the water is 17 ft wide and the canal is 13 ft deep at the center, how deep is it 7 ft from the edge?
A. 12.6 ft
B. 4.5 ft
C. 8.5 ft
D. 6.1 ft
Answer: A
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Approximate the area under the curve and above the x-axis using n rectangles. Let the height of each rectangle be given by the value of the function at the right side of the rectangle.y = x2 from x = 0 to x = 4; n = 4
A. 27 B. 33 C. 36 D. 30
Shade the portion of the diagram that represents the given set.(
? B) ? C
A. 
B. 
Solve the problem.The Habers purchase a $7000 living room set, putting $500 down and agreeing to pay $350.50 each month for 2 years. After 14 payments, they decide to pay off the note. How much is saved in interest? How much is needed to pay the balance of the loan?
A. $350.53, $3154.47 B. $353.37, $3152.13 C. $351.71, $3153.79 D. $357.65, $3147.85
Factor by any method.25z4 + 5z2 - 12
A. (5z4 + 4)(5z - 3) B. (5z2 + 4)(5z2 - 3) C. (5z2 + 3)(5z2 - 4) D. (5z4 + 3)(5z - 4)