Determine if the sequence is geometric. If the sequence is geometric, find the common ratio.
, 
, 
, 
, 
, . . .
A. yes, 
B. no
C. yes, 
D. yes, 2
Answer: D
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The displacement d (in meters) of an object at time t (in seconds) is given. Describe the motion of the object. What is the maximum displacement from its resting position, the time required for one oscillation, and the frequency?d = 2 cos (5t)
A. simple harmonic; -2 m; 
? sec; 
oscillations/sec
B. simple harmonic; 2 m; 
? sec; 
oscillations/sec
C. simple harmonic; 2 m; 
sec; 
? oscillations/sec
D. simple harmonic; 2 m; 5 ? sec; 
oscillations/sec
Solve the application problem.The floor of a rectangular storage room is divided into two right triangles by drawing a diagonal. One leg of the resulting triangle, the width of the room, is 
less than two times the other leg, the length of the room. The hypotenuse is 
Find the length and the width of the room.
A. length: 9 ft width: 12 ft B. length: 12 ft width: 18 ft C. length: 9 ft width: 24 ft D. length: 9 ft width: 3 ft
Write a system of equations for the problem, and then solve the system.A biologist collected 305 fern and moss samples. There were 37 fewer ferns than moss samples. How many fern and moss samples did the biologist collect?
A. Fern samples: 171; moss samples: 268 B. Fern samples: 171; moss samples: 134 C. Fern samples: 104; moss samples: 134 D. Fern samples: 134; moss samples: 171
Find the limit algebraically.
A. 256 B. -15 C. -3840 D. 4