Find the polar equation of the given rectangular equation.y = -x
A. r = sin ?
B. sin ? = - cos ?
C. sin ? = cos ?
D. r = cos ?
Answer: B
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Solve the equation.log x = - 2
A. x = 
B. x = 20
C. x = -20
D. x = 
Simplify the expression. Assume that all variables represent non-negative real numbers.-13
- 15
A. -28
B. 28
C. -28
D. 28
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°
How much should be invested at 6% compounded monthly in order to have $8500 at the end of ten years?
What will be an ideal response?