Use reference angles to find the exact value of the expression. Do not use a calculator.sin 495°
A. 
B. - 
C. 
D. - 
Answer: C
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The question(s) that follow refer to the problem of finding the minimum spanning tree for the weighted network shown below.
Using Kruskal's algorithm, which edge should we choose third?
A. AB B. AE C. GH D. BG E. none of these
Find the area of a sector with the given central angle ? in a circle of radius r.? = 2, r = 5 inches
A. 50 sq in. B. 10 sq in. C. 5 sq in. D. 25 sq in.
Find the derivative of the function.y = 
A. y' = 
B. y' = 
C. y' = 
D. y' = 
Find a and k and then evaluate the function. Round your answer to three decimal places when necessary.f(x) = 20 + a(4kx) with f(0) = 36 and f(2) = 21. Find f(1).
A. a = -16, k = 1, f(1) = 24 B. a = 16, k = 1, f(1) = 21 C. a = 4, k = -1, f(1) = 24 D. a = 16, k = -1, f(1) = 24