Translate the stated rule or relationship to a formula.The area of a circle, A, is equal to the product of ? and the square of the radius, r, of the circle.
A. A = ?r
B. A = ?/r2
C. A = ? + r2
D. A = ?r2
Answer: D
Mathematics
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Find the volume of the solid generated by revolving the region R bounded by the graphs of the given equations about the y-axis.x = 
, x = 0, between y = 0 and y = 
A. 
B. 
C. 16?
D. 8?
Mathematics
Solve the triangle.a = 8, c = 9, B = 105°
A. b = 16.4, A = 37°, C = 38° B. b = 13.5, A = 35°, C = 40° C. b = 19.3, A = 33°, C = 42° D. no triangle
Mathematics
List the intercepts of the graph. 
A. (0, 6), (-6, 0) B. (0, 6), (0, -6) C. (6, 0), (0, -6) D. (6, 0), (-6, 0)
Mathematics
Simplify the radical expression. If appropriate, include absolute values.
A. 
B. 
C. b + 4
D. 
+ 2
Mathematics