Solve by the substitution method.8x + 7y = -7 -6x - 4y = 4
A. (-1, 0)
B. (0, 0)
C. (0, -1)
D. (-7, 4)
Answer: C
Mathematics
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Solve the system of equations by the addition method.
A. (5, 25)
B. no solution
C. 
D. (25, 5)
Mathematics
Differentiate. f (x) = ln 4x
What will be an ideal response?
Mathematics
Choose the answer that lists three solutions for the equation.y = 7x
A. (-7, 7), (-6, 7), (-5, 7) B. (-7, -49), (-6, -42), (-5, -35) C. (-7, 0), (-6, 42), (-5, -42) D. (-7, 0), (-7, -42), (-7, -35)
Mathematics
Solve the inequality and graph the solution set.
< 0
A. ?
B. (-?, -9)
C. (9, -9)
D. (9, ?)
Mathematics