Use an analytic method to solve the equation.x-1 - 72x-2 + 1 = 0

A. {-9, 8}
B.
C. {8, 9}
D. {-8, 9}

Answer: A

Mathematics

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Eliminate the parameter to obtain a Cartesian equation of the curve.x = 2 tan t, y = 5 sec t, 0 ? t ? 2?

A.  -  = 1, -? < x < ?
B. y = x2 - 9, -3 ? x ? 3
C. y = 5, -? < x < ?
D.  +  = 1, -? < x < ?

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Mathematics

Determine the order of the matrix.

A. 1 B. 1 × 3 C. 3 D. 3 × 1

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Mathematics

Find the slope of the line containing the given points.(-18, -5) and (5, -8)

A. -  
B.
C. 1
D. -  

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Mathematics

Find an equation for the line tangent to the given curve at the indicated point.x2 + y2 - 2x + 4y = 8 at (4, 0)

A. y = (x - 4)
B. y = 0
C. y = - (x - 4)
D. x = 4

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Mathematics