Simplify the expression.
A. 
B. 
C. 
D. 
Answer: B
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Find the first 4 terms of the recursively defined sequence.a1 = -1, an + 1 = 2 ? an
A. -2, -4, -8, -16 B. 0, 5, -5, 0 C. -1, -2, -4, -8 D. -1, -5, 0, 5
Find a rectangular equation for the plane curve defined by the parametric equations.x = 8 sin t, y = 8 cos t; 0 ? t ? 2?
A. y2 - x2 = 64; for x in -? < x < ?
B. y = x2 - 9; for x in -2 ? x ? 2
C. y = 
= 64; for x in -? < x < ?
D. x2 + y2 = 64; for x in -8 ? x ? 8
Find the standard form of the equation of the circle.Center at (-5, 4) and tangent to the y-axis.
A. (x - 5)2 + (y + 4)2 = 25 B. (x + 5)2 + (y - 4)2 = 5 C. (x + 5)2 + (y - 4)2 = 16 D. (x + 5)2 + (y - 4)2 = 25
Solve the equation for the specified variable.S = 2?rh + 2?r2; solve for h
A. h = 2?(S - r)
B. h = 
C. h = S - r
D. h = 
- 1