Solve the linear system using an inverse matrix.
A. (-2, 1)
B. (1, -2)
C. (-1, 2)
D. (2, -1)
Answer: A
Mathematics
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Find the second derivative of the function.y = 
A. 
= 2 - 
B. 
= 2 + 
C. 
= 1 + 
D. 
= 2x - 
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Decide whether or not the ordered pair is a solution of the system.(3, -3)
A. Yes B. No
Mathematics
Convert to decimal notation.
A. 1.
B. 1.
C. 1.8
D. 1.8
Mathematics
Solve the problem.A rectangular board is 4 by 14. How far from the center of the board will the foci be located to determine the largest elliptical tabletop? Round your answer to the nearest tenth.
A. 6.7 B. 5.0 C. 2.0 D. .3
Mathematics