Solve the system by the substitution method. Be sure to check all proposed solutions.x + 4y = 78y = 6x + 7
A. {(-2, -5)}
B. {(1, 13)}
C. {(3, 25)}
D. {(2, 19)}
Answer: D
Mathematics
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A. Yes B. No
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A. [2, ?) B. [8, ?) C. [-8, ?) D. [-2, ?)
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A. 5040 B. 24 C. 10,000 D. 210
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Verify the identity.
= cos x + cot x
What will be an ideal response?
Mathematics