Solve by the substitution method.x + y = -9x + y = 3
A. {(-9, 3)}
B. {(0, -6)}
C. ?
D. {(x, y)|x + y = 3}
Answer: C
Mathematics
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A. 
B. 
C. 
D. 
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Find the LCM of the set of numbers.18, 45
A. 810 B. 63 C. 90 D. 45
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Use ordinary division of polynomials to find the quotient and remainder when the first polynomial is divided by the second.x2 - 2x + 3, x - 7
A. x + 5; 38 B. x - 5; -38 C. x + 5; 35 D. x - 5; -35
Mathematics
Tell whether or not the relation is a function.{(-2,-3), (2,3), (6,-5), (7,8), (11,9)}
A. Yes B. No
Mathematics