Solve the system by the substitution method.
A. 
, 
, 
, 
B. 
, 
, 
, 
C. 
, 
D. ?
Answer: D
Mathematics
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Decide if an Euler circuit exists for the graph.
A. Yes B. No
Mathematics
Find the exact values of the remaining trigonometric functions of ? from the given information.cos ? = 
, sin ? < 0
A. sin ? = - 
cos ? = 
tan ? = - 
csc ? = - 
sec ? = 
cot ? = - 
B. sin ? = - 
cos ? = 
tan ? = - 
csc ? = - 
sec ? = 
cot ? = - 
C. sin ? = 
cos ? = 
tan ? = - 
csc ? = 
sec ? = - 
cot ? = - 
D. sin ? = - 
cos ? = 
tan ? = - 
csc ? = - 
sec ? = 
cot ? = - 
Mathematics
Solve the problem.In how many ways can 7 people be chosen and arranged in a straight line, if there are 11 people from whom to choose?
A. 77 ways B. 1,663,200 ways C. 15,840 ways D. 7920 ways
Mathematics
Use a graphing utility to find the limit, if it exists.
A. 49 B. 7 C. Does not exist D. 343
Mathematics