Solve the problem.When a person bends at the waist with a straight back, the force, F, exerted by the person's lower back muscles can be estimated with the formula 
where w is the person's weight, and ? is the angle made by the person's torso relative to the horizontal. Suppose that a 
person bends at an angle of 35°. Determine the force exerted by the person's back muscles, and estimate the angle that requires the back muscles to exert a force of 197 pounds.
A. 29 pounds; 55.4°
B. 199 pounds; 48.3°
C. 284 pounds; 35°
D. 284 pounds; 55.4°
Answer: D
Mathematics
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+ 
= -1
A. ?
B. {5}
C. 
D. {0}
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Graph the equation by plotting ordered pairs of numbers.y = - 
A. 
B. 
C. 
D. 
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