Identify the equation without completing the square.3x2 + 4y2 + 5x - 2 = 0
A. parabola
B. hyperbola
C. ellipse
D. not a conic
Answer: C
Mathematics
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Find the radius of convergence of the power series.
A. 4 B. ? C. 2 D. 1
Mathematics
Express the number in scientific notation.870,000
A. 8.7 × 105 B. 8.7 × 104 C. 8.7 × 10-4 D. 8.7 × 10-5
Mathematics
Simplify. Express in terms of i.
A. i
B. 9i
C. ±9
D. -9i
Mathematics
The graph of a function f is given. Use the graph to answer the question.Find the numbers, if any, at which f has a local maximum. What are the local maxima?
A. f has a local maximum at x = 2; the local maximum is 2 B. f has a local maximum at x = -2 and 2; the local maximum is 0 C. f has a local maximum at x = 0; the local maximum is 2 D. f has no local maximum
Mathematics