Find any values of the variables that must be excluded.
A. a = 0
B. a = -6
C. a = 6
D. Defined for all real numbers
Answer: C
Mathematics
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Multiply and simplify.
? 
A. 
B. 
C. - 
D. - 
Mathematics
Find the exact value. Do not use a calculator.tan 60°
A. 
B. 
C. 2
D. 
Mathematics
Explain how the graph of f can be obtained from the graph of y = 
or y = 
. f(x) = 
A. Shift the graph of y = 
to the right 4 units and upward 8 units.
B. Stretch the graph of y = 
vertically by a factor of 8 and shift to the left 4 units.
C. Stretch the graph of y = 
vertically by a factor of 4 and shift to the left 8 units.
D. Shift the graph of y = 
to the left 8 units and downward 4 units.
Mathematics
Find the standard form of the equation of the sphere with the given characteristics. ? Center: (-4, 1, -7); radius 9
A. 
B. 
C. 
D. 
E. 
Mathematics