Simplify the expression. Write the answer with only positive exponents. All variables are nonzero.
A. 
B. 
C. 2mn2
D. 2m33n12
Answer: A
Mathematics
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State whether you think the difference between what occurred and what you would expect by chance is statistically significant.There are two candidates for mayor, Maria Hernandez, and Eric Wong. Of 100 people polled, 53 say they will vote for Maria Hernandez.
A. Not statistically significant B. Statistically significant
Mathematics
Solve the problem.At one college, GPAs are normally distributed with a mean of 2.6 and a standard deviation of 0.6. What percentage of students at the college have a GPA between 2 and 3.2?
A. 47.5% B. 84% C. 95% D. 68%
Mathematics
Add.13 + (-10) + 22 + (-18)
A. -37 B. 7 C. -1 D. 63
Mathematics
Rationalize the denominator. Assume that all variables represent positive real numbers.
A. 4
B. 
C. 
D. 4y
Mathematics