Solve the pair of linear equations by addition.
If there is one common solution, select the correct ordered pair of the point of intersection. If there is no one common solution, select either parallel or coincide for the correct answer.
A. 
B. 
C. 
D. The lines are parallel.
E. The lines coincide.
Answer: E
Mathematics
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Perform the indicated operations.(2x - 
)(2x + 
)
A. 4x2 - 4x - 
B. 4x2 - 4x - 
C. 4x2 + 2x - 
D. 4x2 - 2x - 
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Find the multiplicative inverse of the number.-23
A. 23
B. 
C. 1
D. - 
Mathematics
Solve the system of equations by the substitution method.
A. (-2, 8) B. (9, -3) C. (-3, 9) D. no solution
Mathematics
Solve the problem.How many distinguishable permutations of letters are possible using the letters in the word COMMITTEE?
A. 90,720 B. 362,880 C. 45,360 D. 181,440
Mathematics