Solve the equation on the interval 0 ? ? < 2?.cos(2?) = 
- cos(2?)
A. 
B. 
C. 
D. No solution
Answer: B
Mathematics
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Take west to be the positive direction. The height of a sloped roof above the place you are standing is 13 feet. If you move 5 feet to the west, the height is 7 feet. What is the slope of the roof line? ?
A. -1.20 feet B. 1.20 feet C. -0.63 feet D. 1.61 feet
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Use the Distributive Property to find the product.3mn(7m2 - 3mn + 6n2)
A. 21m3n - 3mn + 6n2 B. 21m3n + 9m2n2 + 18mn3 C. 21m2n - 9mn+ 18mn2 D. 21m3n - 9m2n2 + 18mn3
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Graph the solution set.|x| ? 3
A. 
B. 
C. 
D. 
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Find the critical numbers of 
Mathematics