Solve the problem.The lower edge of a dam is defined by the parabola (see figure). Use a coordinate system with y = 0 at the bottom of the dam to determine the total force on the dam. Lengths are measured in meters. 
A. 16,056,320 N
B. 1,784,036 N
C. 32,112,640 N
D. 8,028,160 N
Answer: A
Mathematics
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Express the number as the ratio of two integers.0.77777 . . .
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.Estimate the minimum number of subintervals needed to approximate the integral
with an error of magnitude less than 10-4 using Simpson's Rule.
A. 4 B. 30 C. 208 D. 16
Mathematics
Solve the problem.Suppose that the velocity of a falling body is v = ks2 (k a constant) at the instant the body has fallen s meters from its starting point. Find the body's acceleration as a function of s.
A. a = 2ks3 B. a = 2k2s3 C. a = 2ks D. a = 2ks2
Mathematics
If possible, find the matrix product of AB.A = [-7 2 9]; B = 
A. AB = [561]
B. AB = [-63 0 -27]
C. AB = [-90]
D. AB = 
Mathematics