Solve the problem.An object is traveling around a circle with a radius of 20 meters. If in 10 seconds a central angle of 
radian is swept out, what is the linear speed of the object?
A. 
m/sec
B. 
m/sec
C. 
m/sec
D. 
m/sec
Answer: C
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Given y = f(u) and u = g(x), find dy/dx = f'(g(x))g'(x).y = 
, u = 4x - 7
A. 
B. - 
C. - 
D. - 
Identify the number as prime, composite, or neither.2311
A. Neither B. Composite C. Prime
Describe the transformations required to obtain the graph of the function f(x) from the graph of the function g(x).f(x) = -2 cos 7x ; g(x) = cos x
A. Horizontal shrink by a factor 
, vertical stretch by a factor of 2, reflection across x-axis
B. Horizontal shrink by a factor 
, vertical stretch by a factor of 2, reflection across y-axis
C. Horizontal shrink by a factor 
, vertical stretch by a factor of 7, reflection across y-axis
D. Horizontal stretch by a factor 7, vertical stretch by a factor of 2, reflection across x-axis
A geometric sequence is given. Find the common ratio and write out the first four terms.
A. an = 2 
n-1
r = 
; 2, 
, 
, 
, ...
B. an = 2 
n-1
r = 
; 2, 1, 
, 
, ...
C. an = 
(2)n-1
r = 
; 2, 4, 8, 16, ...
D. an = 2 ? (2)n-1
r = 2; 2, 4, 8, 16, ...