Solve by the substitution method.-0.3x - 0.7y = -5.50.2x + 0.1y = 2.2
A. {(4, 9)}
B. {(9, 4)}
C. {(x, y)| -0.3x - 0.7y = -5.5}
D. ?
Answer: B
Mathematics
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A. 
B. 
C. 
D. 
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A. -14a2 - 8a - 5 B. 14a2 + 8a - 5 C. -14a2 + 8a - 5 D. 14a2 - 8a + 5
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Solve the equation.8x2 - 5x + 1 = 0
A. 
B. 
C. 
D. 
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Find 
(x) by evaluating the integral using Part 2 of the Fundamental Theorem and then differentiating.
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