Factor the expression completely, if possible.z2 + 8z + 16
A. (z + 4)(z - 4)
B. (z + 4)2
C. (z + 16)(z + 1)
D. (z - 4)2
Answer: B
Mathematics
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Evaluate the cylindrical coordinate integral.
A. 
B. 125
C. 
D. 
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Find the amplitude, period, or phase shift of the given function as requested.Find the period of y = 3 cos 5
.
A. ?
B. 3
C. 
D. 
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Use the power rules for exponents to simplify. Write the answer in exponential form.
7
A. 87
B. 
C. 
D. 
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The hyperbola shown in the calculator-generated graph was graphed in function mode with a square viewing window. What are the two functions y1 and y2 that were used to obtain the graph whose equation is given?
10
-10
A. y1 = 
, y2 = - 
B. y1 = 5
, y2 = -5
C. y1 = 
, y2 = - 
D. y1 = 
, y2 = - 
Mathematics