Find the standard-form equation for an ellipse which satisfies the given conditions.An ellipse centered at the origin having focus (
, 0) and directrix x = 
A. x2 + 
= 1
B. 
+ 
= 1
C. 
+ y2 = 1
D. 
+ y2 = 1
Answer: C
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Convert 80 ounces to pounds.
A. 20 B. 30 C. 5 D. 10 E. 60
Translate into an equation, then solve.Bob works as a salesman. He was told that he will get a bonus if he has 
in sales over a four-week period. The first week his sales were 
The second week his sales were $1820. The third week his sales were 
How much must Bob sell during the final week to get the bonus?
A. 2370 + 1820 + 3120 + x = 12,130; x = 
B. 2370 + 1820 + 3120x = 12,130; x = 
C. 2370 + 1820 + 3120 = x + 12,130; x = 
D. 2370 + 1820 + 3120 - x = - 12,130; x = 
Solve the polynomial equation by using the root method.4x3 - 108 = 0
A. 3 B. -3 C. 3, 0 D. 3, -3
Solve.During the recent Homecoming football game, State U. scored the following: 5 six-point touchdowns, 5 extra points, 2 three-point field goals, and 1 two-point safety. What was State U.'s final score?
A. 23 points B. 14 points C. 22 points D. 43 points