Find an equation for the ellipse described.Center at (0, 0); focus at (0, 4); vertex at (0, -7)
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Answer: A
Mathematics
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Factor the binomial completely.49a3 - 64a
A. (7a2 + 8)(7a - 8) B. a(49a + 1)(a - 64) C. a(7a - 8)2 D. a(7a + 8)(7a - 8)
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The graph of a function is given. Determine whether the function is increasing, decreasing, or constant on the given interval.(- 2, 0)
A. increasing B. constant C. decreasing
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Factor the perfect square.49x2 + 56x + 16
A. (7x - 5)2 B. (7x + 4)(7x - 4) C. (7x + 4)2 D. (7x - 4)2
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Solve.7x = 
A. - 
B. 
C. 
D. - 
Mathematics