For 
, 
is an exterior angle. Which of the following must be true?
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Divide and reduce to lowest terms.
÷ 
A. 
B. 
C. 
D. x + 3
Mathematics
Find the indicated term.a = 3, r = 4; 9th term
A. 65,536 B. 3,145,728 C. 786,432 D. 196,608
Mathematics
Determine whether the system corresponding to the given augmented matrix is consistent or inconsistent. If it is consistent, give the solution.
A. consistent; x = 0, y = 0; (0, 0) B. consistent; z = -4; (-9) C. consistent; x = 0, y = -4; (0, -4) D. inconsistent
Mathematics
?Solve the system of linear equations
using the inverse matrix 
.
A. ?
B. ?
C. ?
D. ?
E. ?
Mathematics