Simplify the fraction to lowest terms.
?
?
A.
B.
C.
D.
E.
Answer: D
Mathematics
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In order to answer the given question, which of the following types of study would be the most appropriate: an experiment without blinding, an experiment with single blinding, an experiment with double blinding, an observational study, or a case-control study?Does the new medication relieve depression?
A. Observational study B. Case-control study C. Experiment with single blinding D. Experiment without blinding E. Experiment with double blinding
Mathematics
Find the general term of the arithmetic sequence.
, 
, 
, 
, 
, . . .
A. an = 
B. an = 
C. an = 
D. an = 
Mathematics
Factor the perfect square.x2 + 50x + 625
A. (x + 25)(x - 25) B. (x - 25)2 C. (x + 25)2 D. x2 + 50x + 625
Mathematics
Simplify.-17 + 18 - 11 - (-6)
A. -4 B. -30 C. -16 D. 6
Mathematics