List four equivalent forms for the rational expression.- 
A. 
, 
, 
, 
B. 
, 
, 
, 
C. 
, 
, 
, 
D. 
, 
, 
, 
Answer: A
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Evaluate the integral.
dx
A. 2 sin 2x - 
sin3 2x + C
B. 2 sin 2x - 
cos3 2x + C
C. 4 sin 2x - 
sin3 2x + C
D. 2 sin 2x + 
sin3 2x + C
Factor the expression completely. If the polynomial is prime, state this as your answer.x2 + 30x + 225
A. (x + 15)2 B. (x - 15)2 C. x2 + 30x + 225 D. (x + 15)(x - 15)
Simplify the expression. Assume that all variables are positive.
A. xy7 B. x7y2 C. x2y7 D. x7y
Solve the problem.The eardrum is a nearly-circular membrane located in the ear. It can be ruptured when a person is subjected to extreme air pressures. The pressure on the membrane can be calculated using src="https://sciemce.com/media/4/ppg__fdfd0513192323__f1q77g4.jpg" alt="" style="vertical-align: -4.0px;" />
A. Yes
B. No
where F is the force exerted by the air in newtons, r is the radius of the eardrum in mm, and P is the pressure in atmospheres. Damage will occur when 
> 0.2. Determine whether the eardrum is damaged when 
and