Determine the standard equation of the ellipse described.Center at (0, 0); focus at (-4, 0); vertex at (6, 0).
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Answer: A
Mathematics
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Solve the right triangle. Round results to an appropriate number of significant digits.a = 2.6 cm, b = 2.2 cm
A. A = 46°, B = 44°, c = 3.4 cm B. A = 50°, B = 40°, c = 3.4 cm C. A = 40°, B = 50°, c = 3.4 cm D. A = 58°, B = 32°, c = 4.8 cm
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Find the maximum or minimum value of the given objective function of a linear programming problem. The figure illustrates the graph of feasible points. 
z = -7x - y. Find maximum.
A. maximum: -24 B. maximum: -19 C. maximum: -30 D. no maximum
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Solve.A baseball manager has 10 players of the same ability. How many 9 player starting lineups can he create?
A. 90 B. 3,628,800 C. 10 D. 362,880
Mathematics
Graph the polar equation.r = 4 cos ?
A. 
B. 
C. 
D. 
Mathematics