You are given the shape of the vertical ends of a trough that is completely filled with water. Find the force exerted by the water on one end of the trough. (The weight density of water is 62.4 lb/ft3.)
a. 780 lb
b. 312 lb
c. 156 lb
d. 1,560 lb
d. 1,560 lb
Mathematics
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Rationalize the denominator. Assume that all variables represent non-negative real numbers. Make sure you simplify the final answer.
A. 
B. 
C. 
D. 
Mathematics
Use algebraic and/or graphical methods to solve the inequality.
? 
A. -6 ? x ? 1 or x ? 
B. -6 < x < 1 or x ? 
C. -1 < x < 6 or x > 
D. -1 ? x ? 6 or x ? 
Mathematics
Use the discriminant to determine the number and nature of the solutions to the quadratic equation. Do not solve the equation.x2 - 6x - 7 = 0
A. two nonreal solutions B. two real solutions C. exactly one real solution
Mathematics
Find the amplitude.y = -4 sin(2?x + 3)
A. 2? B. 4 C. ? D. -8
Mathematics