If the slope of the line L?1 is negative, then the slope of a line L?2 perpendicular to L?1 may be positive or negative?
?
A. negative
B. positive
Answer: B
Mathematics
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Determine the amplitude or period as requested.Period of y = sin 5x
A. 5
B. 1
C. 2?
D. 
Mathematics
Factor:
Mathematics
Solve the problem.For a hyperbolic mirror the two foci are 44 cm apart. The distance of the vertex from one focus is 6 cm and from the other focus is 38 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. 
- 
= 1
D. 
- 
= 5
Mathematics
Multiply. Write the answer in lowest terms.
? 
? 
A. 
B. 
C. 
D. 
Mathematics