Solve the system by the substitution method. If there is no solution or an infinite number of solutions, so state. Use set notation to express the solution set.
A. {(-4, 9)}
B. {(-3, 8)}
C. no solution; ?
D. {(3, 9)}
Answer: B
Mathematics
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Find the x- and y-intercepts for the equation. Then graph the equation.y = 5x
A. x-intercept: (0, 0), y-intercept: (0, 0)
B. x-intercept: (0, 0), y-intercept: (0, 0)
C. x-intercept: (0, 0), y-intercept: (0, 0)
D. x-intercept: (0, 0), y-intercept: (0, 0)
Mathematics
Complete the factoring.5x2 - 25x = 5x( )
A. x2 - 5 B. 5 - x C. 5 - x2 D. x - 5
Mathematics
Use the remainder theorem and synthetic division to find f(k).k = -3; f(x) = x2 + 2x + 2
A. 5 B. -17 C. 1 D. -13
Mathematics
Write the first four terms of the sequence.an = -5
A. a1 = -5, a2 = 10, a3 = -15, a4 = 20 B. a1 = -5, a2 = -10, a3 = -15, a4 = -20 C. a1 = 5, a2 = -5, a3 = 5, a4 = -5 D. a1 = -5, a2 = -5, a3 = -5, a4 = -5
Mathematics