Use the Gauss-Jordan method to solve the system of equations. 3x + y + z = 5 4x + 5y - z = -810x + 7y + z = 2
A. 
B. 
C. 
D. 
Answer: A
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Apply Green's Theorem to evaluate the integral.
(7y dx + 5y dy); C: The boundary of 0 ? x ? ?, 0 ? y ? sin x
A. -4 B. -2 C. 4 D. 0
Find the domain and range.f(x) = (x + 2)2 - 1
A. Domain: All real numbers; range: y ? -1 B. Domain: All real numbers; range: y > -2 C. Domain: x > -2; range: All real numbers D. Domain: x > -1; range: All real numbers
Let U = {q, r, s, t, u, v, w, x, y, z}, A = {q, s, u, w, y}, B = {q, s, y, z}, and C = {v, w, x, y, z}. List the elements in the following set.
? 
A. {q, r, s, t, u, v, x, z} B. {q, s, u, v, w, x, y, z} C. {w, y} D. {s, t}
Find the absolute extreme values of each function on the interval.f(x) = ex - x, -4 ? x ? 2
A. Minimum value is e-4 + 4 at x = -4; maximum value is e2 - 2 at x = 2 B. Minimum value is 1 at x = 0; no maximum value C. Minimum value is 1 at x = 0; maximum value is e2 - 2 at x = 2 D. Minimum value is 1 at x = 0; maximum value is e-4 + 4 at x = -4