Identify the equation without applying a rotation of axes.3x2 - 8xy + 2y2 + 4x + 2y - 9 = 0

A. ellipse
B. parabola
C. hyperbola
D. not a conic


Answer: C

Mathematics

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A.

? 

B.

C.
?

D.

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Estimate the following problem. Select the nearest answer. 2,100 ð 110 =

a. 210,000 b. 21,000 c. 211,000,000

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Solve the problem.In 1980, the population of a city was 6.8 million. By 1992 the population had grown to 9.5 million. Find the average rate of change in population from 1980 to 1992..

A.  million per year
B.  million per year
C.  million per year
D.  million per year

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