Find the foci of the ellipse whose equation is given.
+ 
= 1
A. foci at (-3, -1 - 
) and (-3, -1 + 
)
B. foci at (3, -1 - 
) and (3, -1 + 
)
C. foci at (-2, -1 - 
) and (-2, -1 + 
)
D. foci at (-1, -3 - 
) and (-1, -3 + 
)
Answer: A
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Provide an appropriate response.Write the set x ? 3 using interval notation.
A. (-?, 3] B. (3, ?) C. (-?, 3) D. [3, ?
Find the ratio of net income after taxes to average owner's equity. Round to the nearest tenth of a percent.Owner's equity at beginning of year: $602,000. Owner's equity at end of year: $806,000. Net income after taxes: $93,500.
A. 11.6% B. 15.6% C. 13.3% D. 15.5%
Solve the problem.The sum of the measures of the angles in any triangle is 180 degrees. In triangle ABC, angles A and B have the same measure, while angle C is 63 degrees larger than each of the other two angles. Find the measure of angle C.
A. 141 degrees B. 78 degrees C. 39 degrees D. 102 degrees
Perform the indicated operation and simplify. 
+ 
A. 
B. 
C. 
D. 3