Find the standard form of the equation of the ellipse satisfying the given conditions.Foci at (0, ±2); length of the major axis is 8
A. 
+ 
B. 
+ 
C. 
+ 
D. 
+ 
Answer: D
Mathematics
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Solve the problem.Find the area of the triangle determined by the points P(-3, 6, -4), Q(-10, -3, -7), and 
A. 
B. 25
C. 
D. 
Mathematics
Simplify the radical.
A. 18 B. 49 C. 7 D. not a real number
Mathematics
A manufacturing company wants to maximize profits on products A, B, and C. The profit margin is $3 for A, $6 for B, and $15 for C. The production requirements and departmental capacities are as follows: 
What is the maximum profit if the profit margin on A changes to $7.00?
A. $225,000 B. $266,000 C. $105,000 D. $98,000
Mathematics
Solve.- 
= x - 
A. - 1
B. 
C. - 
D. 1
Mathematics