Write a linear equation in three variables that is satisfied by the given ordered triples.(0, 0, 5), (0, 1, 4), (1, 0, 4)
A. x + y + z = 4
B. x + y + z = 5
C. x - y - z = 5
D. 2x + y + 2z = 5
Answer: B
Mathematics
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Find the indicated maxima or minima.Minimum of f(x,y) = x2 + y2 - xy,subject to x - y = 10
A. 25 when x = 5, y = 5 B. 7 when x = 2, y = -1 C. 3 when x = 1, y = 2 D. 75 when x = 5, y = -5
Mathematics
Find the solution set of the linear system. Identify inconsistent systems and dependent equations. For dependent equations, write your answer as an ordered triple in terms of z.
A. {(4, 2, 1)} B. {(4, 1, 2)} C. {(1, 4, 2)} D. {(1, 2, 4)}
Mathematics
Write the interval notation for the graph.
k
A. (-?, k] B. [-k, k] C. x ? k D. [k, ?)
Mathematics
Find the integral.
Mathematics