Decide whether or not the matrices are inverses of each other.
and 
A. Yes
B. No
Answer: A
Mathematics
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Solve the problem.The following figure shows the shape and dimensions of a small dam. Assuming the water level is at the top of the dam, find the total force on the face of the dam. Round to the nearest whole number. 
A. 52,266,667 N B. 104,533,333 N C. 26,133,333 N D. 13,066,667 N
Mathematics
Solve.A baseball manager has 12 players of the same ability. How many 9 player starting lineups can he create?
A. 79,833,600 B. 108 C. 362,880 D. 220
Mathematics
Express the radical in simplified form.
A. 4
B. 2 + 
C. Not a real number
D. 2
Mathematics
Find the equation of the tangent line to the curve when x has the given value.f(x) = x2 + 5x; x = 4
A. y = 13x - 16
B. y = - 
+ 
C. y = 
+ 
D. y = -39x - 80
Mathematics