Solve the system of equations by the substitution method.
A. (0, 6)
B. (5, -4)
C. infinite number of solutions
D. no solution
Answer: C
Mathematics
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Provide an appropriate response. Solve for x by completing the square: x2 + 80x = 150
A. 0.917 B. 0.229 C. 1.83 D. 0.458
Mathematics
Perform the indicated operations. [(13x9 + 13) - (- 9x7 + 9x3 )] - [(10x9 - 11x5 + 9x) + (10x3 - 9x- 5)]
A. -3x9 + 9x7 + 11x5 - 19x3 + 18 B. 3x9 + 9x7 + 11x5 - 19x3 + 18 C. 3x9 + 9x7 - 11x5 - 19x3 + 18 D. -3x9 + 9x7 - 11x5 - 19x3 + 18
Mathematics
Solve the equation.
= 5
A. {1, -9} B. ? C. {1} D. {-1, 9}
Mathematics
Solve the inequality. Express your answer using interval notation. Graph the solution set.6x + 2 > 5x + 4
A. [2, ?)
B. (-?, 2]
C. (6, ?)
D. (2, ?)
Mathematics