Write the system in the form 
Then solve the linear system by computing 
with a calculator. Round numbers to the nearest tenth, as necessary.2.6x - 0.7y + 5.3z - 3.4w = 12.9 6.5y + 0.7w = -1.8 4.0z - 2.2w = 1.54.9x + 0.6w = 3.2
A. (2.2, 1.1, 7.2, 12.4)
B. (-2.2, 1.1, -6.4, 23.3)
C. (2.2, -1.1, -6.4, 7.6)
D. (2.2, 1.1, -6.4, -12.4)
Answer: D
Mathematics
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(6, 1) and (-4, -1)
A. - 
B. 0
C. 5
D. 
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Identify the pairs of complementary or supplementary angles, as indicated.Complementary
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