Pre-Calc/Trig Unit 3: Analytic Trig and Applications/5.3 and 5.4 Sum//Difference Identities Solve the problem.When a person bends at the waist with a straight back, the ... 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 θ is the angle made by the person's torso relative to the horizontal. Suppose that a  person bends at an angle of 30°. Determine the force exerted by the person's back muscles, and estimate the angle that requires the back muscles to exert a force of 346 pounds.]]> 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1.0000000 0.3333333 0 true true abc 289 pounds; 47.3° Incorrect 501 pounds; 53.2° Correct 26 pounds; 53.2° Incorrect 501 pounds; 30° Incorrect