Solve the problem.The amount of time it takes a swimmer to swim a race is inversely proportional to the average speed of the swimmer. A swimmer finishes a race in 25 seconds with an average speed of 6 feet per second. Find the average speed of the swimmer if it takes 50 seconds to finish the race.
A. 3 feet per second
B. 4 feet per second
C. 2 feet per second
D. 5 feet per second
Answer: A
Mathematics
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Evaluate the surface integral of the function G over the surface S.G(x, y, z) = x3y3z3; S is the surface of the rectangular prism formed from the planes x = ± 3, y = ± 3, and 
A. 
B. 0
C. 
D. 
Mathematics
Use the Law of Exponents to rewrite and simplify the expression.
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Mathematics
Find all real numbers in the interval [0, 2?) that satisfy the equation.cos2 x + 2 cos x + 1 = 0
A. {2?}
B. {?}
C. 
D. 
Mathematics
Simplify.
A. 15 B. does not exist as a real number C. 16 D. 112
Mathematics