Use the echelon method to solve the system of two equations in two unknowns. 9x + 6y = 129 5x - 2y = 29
A. (9, 9)
B. (8, 9)
C. (9, 8)
D. No solution
Answer: C
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A. P B. PQ C. XYZ D. MNPQ
Solve the differential equation subject to the initial conditions.2 
- 4xy = 8x; y = 8 when x = 0
A. y = -2 + 10ex2 B. y = 2 + 8ex2 C. y = -2 + 10e-x2 D. y = -1 + 9ex2
Perform the indicated operations. Express your answer in standard form.Cube x + 3.
A. x3 + 27 B. x3 + 9x2 + 27x + 27 C. x3 + 9x2 + 9x + 27 D. 3x + 9
Explain how to obtain the graph of the second function from the graph of the first function, or state that the graphs are identical.y = sin x, y = sin (-x + 2?)
A. The graphs are identical. B. Reflect the graph over the x-axis. C. Translate the graph 2? units to the right, and then reflect it over the x-axis. D. Translate the graph 2? units to the left.