If possible, evaluate the expression by hand. If not, approximate the answer to the nearest hundredth. Variables represent any real number.-
A. x4
B. -x9
C. -x4
D. -x3
Answer: C
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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.A company claims that it pays women the same as men for comparable work. The union decides to investigate this claim. The mean monthly salary for men in entry level positions is $2250. Amongst a random sample of 60 female employees in similar positions , the mean monthly salary was $2210. Assuming that the mean salary for all female employees in entry level positions is $2250, the probability of selecting a sample in which the mean monthly salary is $2210 or less is 0.06.
What will be an ideal response?
Divide in the indicated base. 1223 ÷ 23
A. 223R13 B. 213R23 C. 223R23 D. 213R13
Solve the problem.Hsien-Ta doesn't trust banks, so his savings are hidden under his mattress. Emilia has her savings in an investment at simple interest. In approximately what year did they have the same amount?
A. 1989 B. 1986 C. 1988 D. 1996
Determine whether the matrices are inverses. 
, 
A. Yes B. No