Find the vertices and the foci of the given ellipse.
+ 
= 1
A. V: (0, -20), (0, 20);
F: (0, -12), (0, 12)
B. V: (-20, 0), (20, 0);
F: (0, -16), (0, 16)
C. V: (-20, 0), (20, 0);
F: (-12, 0), (12, 0)
D. V: (0, -20), (0, 20);
F: (-16, 0), (16, 0)
Answer: A
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Combine and simplify. Write the answer as a mixed number as needed.
- 
- 
A. 
B. - 
C. 
D. 
Find the quotient. Assume all variables have positive values. Leave your answer in simplest form.
A. 6t B. t2 C. 6t3 D. 6t2
Solve the problem.If a rocket is propelled upward from ground level, its height in meters after t seconds is given by 
During what interval of time will the rocket be higher than 147 m?
A. 0 < t < 3 B. 5 < t < 6 C. 6 < t < 8 D. 3 < t < 5
Solve the inequality and graph the solution set on a number line.x2 - 2x - 15 ? 0
A. (-?, -3] ? [5, ?)
B. (-?, -3]
C. [-3, 5]
D. [5, ?)