Solve the system of linear equations.
?
A. ?
B. ?
C. ?
D. ??
E. ??
Answer: A
Mathematics
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Find the equation of the ellipse satisfying the given conditions. The center is at the origin.The sum of distances from (x, y) to (4, 0) and (-4, 0) is 10.
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Mathematics
Evaluate the expression.
; when y is 2 and z is 4.
A. 0
B. 
C. 16
D. undefined
Mathematics
Solve the equation.3(x2 - 12) = 81x
A. {-2, 6} B. {4, -6} C. {2, -1} D. {2, -6}
Mathematics
Solve the equation by completing the square.x2 + 5x - 5 = 0
A. 
B. {-5 - 3
, -5 + 3
}
C. 
D. 
Mathematics