Simplify the expression using the order of operations.4(7x + 4y) + 5(x + 3y)
A. 33x + 31y
B. 48x + 31y
C. 33x + 7y
D. 12x + 7y + 4
Answer: A
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? is an acute angle and sin ? and cos ? are given. Use identities to find the indicated value.Given that sin ? = - 
and cos ? = 
, find the value of cot ?.
A. 
B. 
C. 
D. 
Use the Binomial Theorem to expand the binomial.(x - 3)6
A. x6 - 18x5 - 108x4 - 486x3 - 972x2 - 1458x - 729 B. x6 - 18x5 + 135x4 - 540x3 + 1215x2 - 1458x + 729 C. x6 - 18x5 - 729x4 - 60x3 - 729x2 - 18x - 3 D. x6 - 18x5 + 36x4 - 54x3 + 36x2 - 18x + 3
Find the intervals on which the function is continuous.Is the function given by f(x) = 
continuous over the interval (-?, 0)? Why or why not?
A. Yes, f(x) is continuous at each point on (-?, 0) B. No, since f(x) is not continuous at x = -4
Find the points of inflection.f(x) = (x + 3)2/3 - 8
A. (0, 32/3 - 8) B. (-3, -8) C. (-3, -8), (0, 32/3 - 8) D. No points of inflection exist