Find the polar coordinates of the point. Express the angle in degrees and then in radians, using the smallest possible positive angle.(-2
, -2
)
A. (2
, 135°), 
B. (2
, 225°), 
C. (4, 135°), 
D. (4, 225°), 
Answer: D
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Multiply.-1000 × (-221.699143)
A. -2,216,991.43 B. 221,699.143 C. -2,216.99143 D. 22,169.9143
Find an equation for the line, in the indicated form, with the given properties. Containing the points (2, 0) and (-7, -5); general form
A. -5x + 9y = -10 B. -2x + 2y = 24 C. 5x + 9y = -10 D. 2x - 2y = 24
Multiply.0.0091(4.9)
A. 0.4459 B. 0.004459 C. 0.0004459 D. 0.04459
Solve the problem.For a hyperbolic mirror the two foci are 42 cm apart. The distance of the vertex from one focus is 6 cm and from the other focus is 36 cm. Position a coordinate system with the origin at the center of the hyperbola and with the foci on the y-axis. Find a Cartesian equation for the hyperbola.
A. 
- 
= 1
B. 
- 
= 5
C. 
- 
= 5
D. 
- 
= 1