Find an equation for the ellipse.Center at (0, 0); focus at (2, 0); vertex at (3, 0)
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Answer: D
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In a school survey, students showed these preferences for instructional materials. Answer the question.
About how many students would you expect to prefer films in a school of 900 students?
A. About 20 students B. About 162 students C. About 108 students D. About 180 students
Answer the question(s) based on the following situation: For a population of 2000 students taking the SAT math exam, the scores on the exam have an approximately normal distribution with mean ? = 590 and standard deviation ? = 70.Approximately how many students scored less than 543 points?
A. 500 B. 750 C. 543 D. 637 E. none of these
Graph y = f(x). Compare the graph to the graph of y = log x.y = log(x) + 2
A. Shifted 2 unit(s) to the right
B. Shifted 2 unit(s) to the left
C. Shifted 2 unit(s) upward
D. Shifted 2 unit(s) downward
Perform the indicated operation. Assume that all variables are nonnegative.
(5
- 1)
A. 4
B. 30 - 1
C. 
- 
D. 29