Solve the problem.A circle with a radius r contains a triangle whose base passes through the center of the circle and whose height is r. Express the shaded area in terms of r and ? as a completely factored polynomial.
A. ?(r + 1)2
B. r2(? - 1)
C. ?(r - 1)2
D. r2(? + 1)
Answer: B
Mathematics
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Sketch the graph of the function.
?
?
A. ?
B. ?
C. ?
D. ?
E. ?
Mathematics
Sets A, B, and C are given. Find the indicated set. A = {-8, -3, -1, 2, 5}, B = {-3, 2, 5, 7}, and C = {-1, 4, 9}(A ? B) ? C
A. {-3, -1, 2} B. {-3, -1, 2, 5} C. {-3, -1, 2, 4, 5, 9} D. {-3, 2, 5}
Mathematics
The graph of a one-to-one function f is given. Sketch the graph of the inverse function f-1, on the same set of axes. Use a dashed line for the inverse.
A. 
B. 
C. 
D. 
Mathematics
Find the center (h, k) and radius r of the circle with the given equation. 4x2 + 4y2 - 12x + 16y - 5 = 0
A. (h, k) = (- 
, 2); r = 
B. (h, k) = (
, -2); r = 
C. (h, k) = (
, -2); r = 
D. (h, k) = (- 
, 2); r= 
Mathematics