Find an equation for the ellipse.Center at (0, 0); focus at (0, -6); vertex at (0, 7)
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Answer: A
Mathematics
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Find the quotient.
A. 5 B. 1 C. 0 D. undefined
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Find the second derivative.y = 5x2 + 7x + 4x-3
A. 10 + 48x-1 B. 10x + 7 - 12x-4 C. 10 - 48x-5 D. 10 + 48x-5
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Graph the equation in the rectangular coordinate system.y = 1
A. 
B. 
C. 
D. 
Mathematics
Use the given values of the variables to find the value of the expression.-2x + 5y - 6a for x = -2, y = 1, a = -1
A. -6 B. -7 C. 5 D. 15
Mathematics