Provide an appropriate response.If a ? 0,
is called the reciprocal of a. Use this definition to express the reciprocal of
in the form 
Fill in the blank(s) with the appropriate word(s).
(5/29) + (2/29)i
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Rotate the coordinate axes to change the given equation into an equation which has no cross product (xy) term. Identify the graph of the equation as a hyperbola, ellipse, parabola, a straight line, or parallel lines.3x2 - 2xy + y2 - 3
x + 7y = 0
A. 4u2 + 2u + 8v = 0; Parabola
B. 4v2 + 8v = 0; Parallel lines
C. -u2 + 4v2 + 2u + 8v = 0; Hyperbola
D. u2 + 4v2 + 2u + 8v = 0; Ellipse
Solve the problem.Write an equation to calculate the number of words (w) which can be typed in a certain amount of time (t) at an average rate (r) of x words per minute. If Mark's typing speed is 80 words per minute, how many words can he type in 45 minutes?
A. w = r + t; w = 125 words B. w = rt; w = 3600 words C. w = rt; w = 3500 words D. w = rt; w = 3610 words
Use a graphing calculator to solve the equation.5x2 - 11x = 12
A. - , -3
B. - , 0
C. - , 1
D. - , 3
Solve.36 + x = 91
A. 3276 B. 146 C. 127 D. 55