Simplify.
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Integrate the function f over the given region.f(x, y) = 5x sin xy over the rectangle 0 ? x ? ?, 0 ? y ? 1
A. ?
B. 
C. 5?
D. 5? - 5
Mathematics
Find a value of a so that f is continuous at c, or indicate this is impossible.Let f(x) = (sin x)x, x ?0. Extend the definition of f to x = 0 so that the extended function is continuous there.
A. f(x) = 
B. f(x) = 
C. f(x) = 
D. f(x) = 
Mathematics
Solve the problem.How many players are there in the weighted voting system 
?
A. 20 B. 9 C. 10 D. 28 E. none of these
Mathematics
For the given polar equation, write an equivalent rectangular equation. r2sin 2? = 42
A. y = 21x
B. y = 
C. y = 
D. y = 42x2
Mathematics