Evaluate the piecewise-defined function at the indicated value. f(x) = {
; f(-4)
A. -5
B. -8
C. 3
D. 8
Answer: B
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A regular octagon has a side of 12 cm and the perpendicular distance from the center to one of the sides is 14.5 cm.The area of the octagon is
(a) 522 sq. cm (b) 696 sq. cm (c) 1044 sq. cm (d) 1392 sq. cm (e) 87 sq. cm
If the probability an event will occur is p and the probability it will not occur is q, then each term in the expansion of (p + q)n represents a probability.The probability that a person in the general population suffers from anxiety is 0.25. If five people from the general population are randomly selected, the probability that three of them will suffer from anxiety is the third term of the binomial expansion of 
(0.25 + 0.75)5.
?
What is this probability?
Round the answer to four decimal places. A. 0.2637 B. 0.3516 C. 0.0879 D. 0.0659
The polar coordinates of a point are given. Find the rectangular coordinates of the point.(-3, -135°)
A. 
B. 
C. 
D. 
Translate the phrase to an algebraic expression. Use x to represent "a number."Divide a number by -20.
A. x - (-20)
B. -20 ÷ x or 
C. -20 ? x or -20x
D. x ÷ (-20) or 