Solve the system of linear equations. If the system has infinitely many solutions, describe the solution with an ordered triple in terms of variable z.x + 3y + 2z=114y + 9z=-12x + 7y + 11z=- 1
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Find the least common multiple of the given number by the method of intersection of sets of multiples.30, 20, and 50
A. 100 B. 300 C. 60 D. 150
Mathematics
Perform the indicated operation or operations. Write the answer in simplest form. If the problem contains mixednumbers and the answer is an improper fraction, express the answer as a mixed number.6
× 2
A. 17
B. 4
C. 16
D. 120
Mathematics
Approximate the given square root to the nearest tenth using the guess-and-check method.
A. 2.1 B. 2.2 C. 2.3 D. 3.2
Mathematics
Solve using the addition principle.2
+ x = 11
A. 13
B. -9
C. 8
D. -8
Mathematics