Add and, if possible, simplify.
+ 
A. - 
B. 
C. - 
D. 
Answer: A
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Solve the given differential equation.
+ 3
+ 2y = xex - 3
A. y = c1e-2x + c2e-x + 
ex - 
xex - 
B. y = c1e-2x + c2e-x - 
ex - 
xex - 
C. y = c1e-2x + c2e-x - 
ex + 
xex - 
D. y = c1e-2x + c2e-x + 
ex + 
xex - 
Which polygons can be used to make a regular tessellation? Explain why.
What will be an ideal response?
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 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 381 pounds. Round the force to the nearest pound, and the angle to the nearest tenth, if necessary.
A. 318 pounds; 47.3° B. 26 pounds; 53.2° C. 551 pounds; 53.2° D. 551 pounds; 30°
Solve the problem.The following is a list of heights, in inches, of six people:Susan68Umar72Mark73Dorota68 Mike74Gina67What is the median height?
A. 70.5 inches B. 70 inches C. 72 inches D. 68 inches