Find an equation for the ellipse.Focus at (-2, 0); vertices at (±4, 0)
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Answer: A
Mathematics
You might also like to view...
Evaluate.-(-|-6|)
A. 6 B. 1 C. -1 D. -6
Mathematics
Identify the curve as simple, closed, both, or neither.
A. Simple B. Closed C. Both D. Neither
Mathematics
Solve the problem.If s is proportional to t2, and s = 405 when t = 9, find s when t is 8.
A. 45 B. 72 C. 360 D. 320
Mathematics
Solve the problem.The strength S of a rectangular wooden beam is proportional to its width times the square of its depth. Find the dimensions of the strongest beam that can be cut from a 
cylindrical log. (Round answers to the nearest tenth.)
A. w = 6.8; d = 7.2 B. w = 6.8; d = 9.2 C. w = 4.8; d = 9.2 D. w = 5.8; d = 8.2
Mathematics