Find a rectangular equation for the plane curve defined by the parametric equations.x = sec t, y = tan t
A. y = x + 1
B. y2 - x2 = 1
C. y = x - 1
D. x2 - y2 = 1
Answer: D
Mathematics
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A. 45,216 ft2 B. 70,650 ft2 C. 25,434 ft2 D. 11,304 ft2
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Verify that each equation is an identity.cos4 x = 
(3 + 4 cos(2x) + cos (4x))
What will be an ideal response?
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Simplify the rational expression.
A. 
B. 
C. 30r2s
D. 
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Solve the problem.The polynomial 
approximates the shark population in a particular area, where x is the number of years from 1985. Use a graphing calculator to describe the shark population from the years 1985 to 2010.
A. The population remains stable. B. The population increases. C. The population decreases.
Mathematics