Solve.- 
x = -63
A. - 1
B. -81
C. 1
D. 81
Answer: D
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Identify the problem with the method used to obtain a random sample.Denis is interested in the opinions of students at his university regarding life after death. He obtains an alphabetical listing of names of all students at the university. He obtains a sample of 10 students by choosing every 1000th name from the list.
A. Choosing every 1000th name will lead to bias in the sample. Not all of students on the list have the same chance of being selected. B. The sample is too small. C. The sample is biased because the students on the list will not be representative of all students.
Find the future value of the annuity.Payments of $1000 at the end of each year for 7 years at 3% interest compounded annually
A. $3980.17 B. $7662.46 C. $6468.41 D. $40,995.80
Use the table to solve the problem.
What is the time of revolution around Geo 1 of the moon Luna 4?
A. 1.54 years B. 727 years C. 87.78 years D. 34.09 years
Round to the nearest thousand. 213,469
A. 213,000 B. 210,000 C. 212,000 D. 213,500