Find domain of the following function.
?
?
A. all real numbers x except x = -7
B. all real numbers x except x = 1
C. all real numbers x except x = 49
D. all real numbers x except x = 7
E. all real numbers x except x = -1
Answer: A
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Perform the indicated operations. Leave the result in polar form.(
)3
A. 
B. 
C. 
D. 
Find the first five terms of the sequence defined by the given general term.f(n) = 2n- 2
A. 4, 6, 8, 10, 12 B. 0, -2, -4, -6, -8 C. 0, 1, 2, 3, 4 D. 0, 2, 4, 6, 8
Simplify the expression.- 
(z - 16) - 
z
A. 
z - 
B. 
z + 
C. 
z + 16
D. - 
z + 
Solve.For a hyperbolic mirror the two foci are 38 cm apart. The distance of the vertex from one focus is 3 cm and from the other focus is 35 cm. Position a coordinate system with the origin at the center of the hyperbola and with the foci on the y-axis. Find the equation of the hyperbola.
A. 
- 
= 1
B. 
- 
= 5
C. 
- 
= 5
D. 
- 
= 1