Solve the problem.f(x) = 
What value of c makes f(x) continuous at x = 4?
A. 4
B. 2
C. -2
D. -8
Answer: B
Mathematics
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In the diagram below, the sum of the numbers in any 2 small circles is the number in the large circle between them. Complete the diagram so that the same pattern holds.
A. 
B. 
C. 
Mathematics
Use the quadratic formula to solve the equation.x2 - 14x + 85 = 0
A. {7 - 36i, 7 + 36i} B. {7 - 6i, 7 + 6i} C. {7 + 6i} D. {1, 13}
Mathematics
Factor completely.x3y - 5x2y2 + 4xy3
A. xy(x2 - 5x + 4y2) B. x(xy - 1y2)(x - 4y) C. y(x - 1y)(xy - 4y2) D. xy(x - 1y)(x - 4y)
Mathematics
Solve the problem.The function f, given in the diagram below, computes the average cost of an item during year x. Evaluate 
A. 510 B. 490 C. 570 D. 420
Mathematics