Find the area of the shaded region.
A. 2 + 
B. 2 + ?
C. 2
D. 2 - 
Answer: A
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Verify the identity.
2 = 1 - sin ?
What will be an ideal response?
Use a formula from the list provided and the given area to find the unknown measure. 
A = 35.1 square feet
A. 10.8 feet B. 11.7 feet C. 12 feet D. 13.2 feet
Two sides of a right triangle ABC (C is the right angle) are given. Find the indicated trigonometric function of the given angle. Give exact answers with rational denominators.Find sec B when a = 5 and b = 2.
A. 
B. 
C. 
D. 
Solve the problem.A machine produces open boxes using square sheets of plastic. The machine cuts equal-sized squares measuring 2 inches on a side from each corner of the sheet, and then shapes the plastic into an open box by turning up the sides. If each box must have a volume of 242 cubic inches, find the length of one side of the open box.
A. 13 in. B. 15 in. C. 10 in. D. 11 in.