Write the rational expression in simplest form.
?
?
A. 
B. ?
C. ?
D. ?
E. ?
Answer: D
Mathematics
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Rationalize the denominator and simplify.
A. 
B. 
C. 7
D. 7
Mathematics
Find the standard deviation. Round to one more place than the data.9, 20, 16, 16, 7, 15, 17, 18, 5, 16
A. 5.0 B. 4.7 C. 4.5 D. 1.5
Mathematics
Evaluate or simplify the given expression.cos-1 
A. 0
B. ?
C. 
D. 
Mathematics
Solve the problem that involves probabilities with independent events.A spinner is used for which it is equally probable that the pointer will land on any one of six regions. Three of the regions are colored red, two are colored green, and one is colored yellow. If the pointer is spun three times, find the probability it will land on green every time.
A. 
B. 
C. 
D. 
Mathematics