Solve the linear system using an inverse matrix.
A. (-1, 2)
B. (2, -1)
C. (-2, 1)
D. (1, -2)
Answer: C
Mathematics
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Find the logarithm using the change-of-base formula.log5.4 1700
A. 7.4384 B. 4.4108 C. 0.2267 D. 1.6864
Mathematics
Find an equation of an ellipse satisfying the given conditions.Vertices: (0, -10) and (0, 10); length of minor axis: 6
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 10
Mathematics
Insert <, >, or = to make the statement true.
_____ 
A. < B. = C. >
Mathematics
Solve the problem.Find the 25th term of the arithmetic sequence with first term -3 and common difference -4.
A. 97 B. -99 C. 93 D. -103
Mathematics