Solve the formula for the specified variable. Assume all variables represent nonnegative numbers. If possible, simplify radicals and rationalize denominators. V = 
for s
A. s = 
B. s = 
C. s = 
D. s = 
Answer: B
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Solve the problem. Use a Venn diagram, as needed.A survey of a group of 118 tourists was taken in St. Louis. The survey showed the following:65 of the tourists plan to visit Gateway Arch;50 plan to visit the zoo;11 plan to visit the Art Museum and the zoo, but not the Gateway Arch;14 plan to visit the Art Museum and the Gateway Arch, but not the zoo;18 plan to visit the Gateway Arch and the zoo, but not the Art Museum;8 plan to visit the Art Museum, the zoo and the Gateway Arch;15 plan to visit none of the three places.How many plan to visit the Art Museum only?
A. 37 B. 14 C. 103 D. 50
Find the exact value of the expression.cos 
cos 
+ sin 
sin 
A. 1
B. 
C. 
D. 
Solve the problem.The cost for labor associated with fixing a washing machine is computed as follows: There is a fixed charge of $20 for the repairman to come to the house, to which a charge of $22 per hour is added. Find an equation that can be used to determine the labor cost, C(x), of a repair that takes x hours.
A. C(x) = 20 - 22x B. C(x) = 20 + 22x C. C(x) = 22 + 20x D. C(x) = ( 20 + 22) x
Eliminate the parameter t. Find a rectangular equation for the plane curve defined by the parametric equations.x = et, y = e-t; -? < t < ?
A. y = e-ln x; 0 < x < ? B. y = ex; -? < x < ? C. y = eln x; 0 < x < ? D. y = e-x; -? < x < ?