The graph of an ellipse is given. Find the standard form of the equation of the ellipse. 
A. 
+ y2 = 1
B. x2 + 
= 1
C. x2 + 
= 1
D. x2 - 
= 1
Answer: C
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Solve the problem.The polynomial 
gives the approximate total earnings of a company, in millions of dollars, where x = 0 corresponds to 1996, x = 1 corresponds to 1997, and so on. This model is valid for the years from 1996 to 2000. Determine the earnings for 2000. Round to two decimal places, if necessary.
A. $1.53 million B. $1.73 million C. $2.01 million D. $1.88 million
Which method should be used to solve the system? Explain your answer, including a description of the first step.x2 + y2 = 49x + 10y = 5
What will be an ideal response?
Determine the measure of the interior angle at vertex A.
A. 50° B. 210° C. 150° D. 70°
Solve the inequality.(b - 2)(b - 3)(b - 4) < 0
A. (-?, 3) B. (-?, 2) or (3, 4) C. (2, 3) or (4, ?) D. (4, ?)