Find the area of the specified region.Inside the three-leaved rose r = 6 cos 3?
A. 3?
B. 9?
C. 
?
D. 18?
Answer: B
Mathematics
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All references are to the figure below. The distance between A and D is a, and the distance between D and C is x. 
Assuming that A = 29°, ?BDC = 52°, and a = 10, find h and x.
A. x ? 8, h ? 10 B. x ? 20, h ? 10 C. x ? 7.6, h ? 10. D. x ? 18, h ? 10.
Mathematics
Solve the problem. Round to the nearest tenth.The roof of a building is in the shape of the hyperbola y2 - 3x2 = 39, where x and y are in meters. Refer to the figure and determine the height, h, of the outside walls.
a = b = 7 m
A. 186 m B. 13.6 m C. 52 m D. 7.2 m
Mathematics
Factor the binomial that is a difference of squares. If prime, so state.49x2 - 16
A. (7x + 4)(7x - 4) B. (7x + 4)2 C. prime D. (7x - 4)2
Mathematics
Solve the inequality.16x2 + 81 < 72x
A. No real solution
B. 
C. 
D. 
Mathematics