Find the standard-form equation of the ellipse centered at the origin and satisfying the given conditions.An ellipse with length of major axis 18 and y-intercepts 
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Answer: C
Mathematics
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Solve the compound inequality. Graph the solution set and write the solution in interval notation.x ? 1 or x ? -5
A. [-5, 1]
B. ?
C. (-?, ?)
D.
(-?, -5] ? [1, ?)
Mathematics
Graph the system of inequalities.x + 2y ? 2 x - y ? 0
A. 
B. 
C. 
D. 
Mathematics
Divide.(42x6 - 42x4 + 18x2) ÷ (6x4)
A. 7x - 7 + 
B. 7x2 - 7 + 
C. 7x2 - 7 + 
D. 7x - 7 + 
Mathematics
Solve and check.
= 6
A. 
B. 
C. 36
D. 6
Mathematics