Solve the problem.The magnitude and direction of two forces acting on an object are 35 pounds, 
, and 55 pounds, 
respectively. Find the magnitude and the direction angle of the resultant force. Round the magnitude to the nearest hundredth of a pound and the direction angle to the nearest tenth of a degree.
A. 
= 65.19; ? = -7.5°
B. 
= 57.04; ? = -23.6°
C. 
= 43.30; ? = 2.7°
D. 
= 49.17; ? = -11.3°
Answer: B
Mathematics
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Simplify the expression.(4x-2)-4
A. 4x8
B. 
C. 
D. 
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Evaluate the improper integral or state that it is divergent.
A. Divergent
B. 
C. 
D. 
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Use the formula for 
to solve.From 9 names on a ballot, a committee of 3 will be elected to attend a political national convention. How many different committees are possible?
A. 252 B. 60,480 C. 84 D. 504
Mathematics
Solve the problem.A lumber yard has fixed costs of $6146.50 a day and variable costs of $1.00 per board-foot produced. The company gets $2.90 per board-foot sold. How many board-feet must be produced daily to break even?
A. 6146 board-feet B. 2156 board-feet C. 3235 board-feet D. 1576 board-feet
Mathematics