Determine whether the graphed relation is a function.

A. function
B. not a function


Answer: B

Mathematics

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Find the curvature of the curve r(t) = 2 sin 7ti+ 2 cos 7tj+2tk. Select the correct answer.

Mathematics

Evaluate the determinant.

A. -44 B. -20 C. 44 D. 52

Mathematics

A nonlinear system is given, along with the graphs of both equations in the system. Determine if the points of intersection specified on the graph are solutions of the system by substituting directly into both equations.x2 + y2 = 252y + x = 5

A. Yes B. No

Mathematics

Evaluate dz.z = x3 - 8xy2 + 9y; x = -1, y = -3, dx = -0.02, dy = 0.01

A. -1.41 B. 1.95 C. 0.90 D. 0.99

Mathematics