Find the phase shift of the function.y = -2 cos 
A. -2 units down
B. -2 units up
C. 
units to the right
D. 
units to the left
Answer: D
Mathematics
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FInd the tangential and normal components of the acceleration.r(t) = 
(1 + t)3/2i + 
(1 - t)3/2j + 
tk
A. a = 
N
B. a = 
N
C. a = T + 
N
D. a = 
T
Mathematics
In a certain city there is a river running through the middle of the city. There are three islands and seven bridges as shown in the figure below.
In the graph that models this situation, the degree of the vertex that represents the North Bank is
A. 1. B. 2. C. 4. D. 3. E. none of these
Mathematics
Solve the problem.Find the coordinates of (-?/4, -3) after it is moved ?/3 units to the left.
A. (-?/12, -3) B. (7?/12, -3) C. (?/12, -3) D. (-7?/12, -3)
Mathematics
Find the indicated fractional part.
of 
A. 
B. 
C. 
D. 
Mathematics