Tell whether permutations or combinations are being described.15 students are selected to form a committee.
A. Combinations
B. Permutations
Answer: A
Mathematics
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Find the opposite of the real number.-16.
A. 
B. 
C. 16
D. -16.
Mathematics
Solve the system of equations by substitution, if a solution exists.
A. x = -3, y = 10 B. No solution C. x = -2, y = 9 D. x = -2, y = 10
Mathematics
The confidence interval for a population percentage is generated from the inequality 
< E, where E is the margin of error. Construct a 95% confidence interval for the population percentage using the given information.Percentage of false positives generated by a new diabetes screening test, 
= 8.5%, E = 4.6%
A. 4.1% < p < 13.2% B. 3.7% < p < 13.2% C. 4.1% < p < 13.0% D. 3.9% < p < 13.1%
Mathematics
Provide an appropriate response.Write 
in simplest form.
A. 
B. 
C. 
D. 
Mathematics