Find the foci of the given hyperbola.
- 
= 1
A. (-4, 0), (4, 0)
B. (- 
, 0) , (
, 0)
C. (0, -9), (0, 9)
D. (0, - 
) , (0, 
)
Answer: B
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The result of a hypothesis is described in terms of the probability of obtaining a particular sample. Use the given context to formulate the null and alternative hypotheses. Discuss whether the sample provides evidence for rejecting the null hypothesis.The mean resting heart rate for students at Northridge College is 72 beats per minute. An exercise physiologist believes that for athletes, the mean resting heart rate will be lower. She finds that for a random sample of 55 athletes at the college, the mean resting heart rate is 71 beats per minute. Assuming that the mean resting heart rate for all athletes at the college is 72 beats per minute, the probability of selecting a random sample with a mean of 71 or less beats per minute is 0.14.
What will be an ideal response?
Write the indicated term of the binomial expansion.(2x + 5)5; 5th term
A. 15,625 B. 1250x C. 6250x D. 2500x2
Multiply. Write the answer in lowest terms.
? 
A. 
B. 
C. 
D. 
Solve the problem.Crafty Bill's Cool Car Sales opened as a used car sales lot in 2006. The graph shows the number of cars sold as a function of time. What is the approximate number of cars sold in 2008?
A. 350 cars B. 400 cars C. 550 cars D. 500 cars