Differentiate.f(x) = 
A. f'(x) = - 
B. f'(x) = - 
C. f'(x) = 
D. f'(x) = - 
Answer: A
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Find the fluid force exerted against the vertically submerged flat surface depicted in the diagram. Assume arbitrary units, and call the weight-density of the fluid w.
A. 432w B. 864w C. 648w D. 324w
Rationalize the denominator and, if possible, simplify to form an equivalent expression.
A. 
B. 
C. 
D. 
Solve the system of equations by elimination.2x + 36y = -170 8x + 6y = 10
A. (-5, 5) B. (-6, 5) C. (5, -5) D. (8, -8)
Substitute to find the value of the expression.Mary earns three times as much per week as Maureen. If x represents the amount that Maureen earns per week, then 3x represents the amount that Mary earns per week. How much does Mary earn per week if Maureen earns $354 per week?
A. $351 B. $357 C. $118.00 D. $1062