Solve. Round your answer to the nearest tenth, if necessary.The length of a rectangular storage room is 5 feet longer than its width. If the area of the room is 50 square feet, find its dimensions.
A. Width is 4 feet; length is 11 feet
B. Width is 5 feet; length is 10 feet
C. Width is 6 feet; length is 11 feet
D. Width is 4 feet; length is 9 feet
Answer: B
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Find the center of mass of a thin plate of constant density covering the given region.The region between the x-axis and the curve y = 2csc2 x, 
? x ? 
A. 
= 
, 
= 
B. 
= 
, 
= 2
C. 
= 
, 
= 3
D. 
= 
, 
= 
Use the leading coefficient test to determine whether y?? or y?-? as
y = -3x6 + 5x5 - x2 - 9x + 4
A. -? B. ?
Fill in the blank with one of the words or phrases listed below. Choices may be used more than once or not at all.
The 
of a line measures the steepness or tilt of a line.
A. relation B. domain C. range D. slope
0 ? t < 
and sin t is given. Use the Pythagorean identity sin2 t + cos2 t = 1 to find cos t.sin t = 
A. 
B. 
C. 
D. 