Solve.Express the perimeter of the rectangle as a fully simplified rational expression.
A. 
in.
B. 10x in.
C. 20 in.
D. 10 in.
Answer: C
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Graph the polar equation.r = 
A. 
B. 
C. 
D. 
Solve the problem.A projectile is fired with an initial velocity of 350 feet per second at an angle of 45° with the horizontal. In how many seconds will the projectile strike the ground? (Round your answer to the nearest tenth of a second.)
A. 12.1 sec B. 23.6 sec C. 20.3 sec D. 15.5 sec
Refer to this figure to answer the question. Line DH is parallel to line IM. Line BO is perpendicular to line DH. 
m(?IJN) is 49°. What is the measure of ?JEF?
A. 49° B. Can't determine C. 41° D. 131°
Solve the problem.The length of a room is 8 feet more than the width. The room has a floor area of 425 square feet. Find the dimensions of the room.
A. Length: 33 feet; Width: 25 feet B. Length: 28 feet; Width: 20 feet C. Length: 25 feet; Width: 17 feet D. Length: 17 feet; Width: 9 feet