Solve the problem.Two forces of 574 N and 228 N act at a point. The resultant force is 649 N. Find the angle between the forces.
A. 164.9°
B. 81.3°
C. 98.7°
D. 115.3°
Answer: B
Mathematics
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Find the area of the specified region.Inside the circle r = -4 cos ? and outside the circle r = 2
A. 
(4? - 3
)
B. 
?
C. 
(2? + 3
)
D. 2?
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Graph.
- 
= 1
A. 
B. 
C. 
D. 
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Use the laws of exponents to simplify. Write the answer with positive exponents.
A. 5.87/10
B. 5.87/5
C. 
D. 
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Solve the equation.25k2 - 81 = 0
A. 
B. 
C. {9, 0}
D. 
Mathematics