Find an equation for the ellipse described.Focus at (-2, 0); vertices at (±8, 0)
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Answer: B
Mathematics
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Graph.12y2 - 36x2 = 192
A. 
B. 
C. 
D. 
Mathematics
The speed of an airplane with a tailwind is 273 miles per hour, and with a headwind 223 miles per hour. On a day with no wind, how far could the plane travel on a 3-hour fuel supply? ? Please enter your answer as a number without the units.
Fill in the blank(s) with the appropriate word(s).
Mathematics
Solve the problem.Find the amount of money in an account after 12 years if $3800 is deposited at 5% annual interest compounded semi-annually.
A. $6873.16 B. $6824.25 C. $6915.43 D. $6898.35
Mathematics
Factor the trinomial completely, or state that the trinomial is prime.7x2 - 20x + 3
A. (7x - 3)(x + 1) B. (7x - 1)(x + 3) C. (7x + 1)(x - 3) D. prime
Mathematics