Find the amplitude, period, or phase shift as specified.Find the period of y = 5 cos 
.
A. 15?
B. 3?
C. 5?
D. 
Answer: A
Mathematics
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Solve the problem.If u = -8i - 2j and v = 6i + 7j, find u + v.
A. -2i + 5j B. -14i - 3j C. 14i + 5j D. -3i + 5j
Mathematics
Find the average rate of change illustrated in the graph.
Year
A. $5000.00 per year B. -$5000.00 per year C. $4000.00 per year D. -$4000.00 per year
Mathematics
Solve the system by substitution.x - 7y = 6 x = 8y
A. {(6, 48)}
B. {(-48, -6)}
C. 
D. {(48, 6)}
Mathematics
Find the perimeter of the shape made up of rectangles and squares.
A. not enough information given B. 57 km C. 78 km D. 39 km
Mathematics