Answer the question.Which of the following statements is true concerning the graph of f(t) = cot t?

A. The graph is symmetric about the x-axis.
B. The graph is symmetric about the y-axis.
C. The graph contains no symmetry.
D. The graph is symmetric about the origin.


Answer: D

Mathematics

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Find the angle between u and v in radians.u = -2i - 6j, v = 7i + 6j + 8k

A. -0.70 B. 1.58 C. 1.84 D. 2.28

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Solve the problem. Round your answer, as needed.A formula for electric circuits is  =  + . If a = 17 and b = 19, find c.

A. 1.789 B. 0.006 C. 161.5 D. 2.235

Mathematics

Find all real zeros of the polynomial and determine the multiplicity of each.

a. x = 7; multiplicity 2; x = 1, multiplicity 2 b. x = -7; multiplicity 2; x = -1, multiplicity 2 c. x = 0; multiplicity 2; x = -7, multiplicity 1; x = -1 multiplicity 1 d. x = 0; multiplicity 2; x = -7, multiplicity 1; = 1 multiplicity 1 e. x = 0; multiplicity 1; x = -7, multiplicity 1; x = -7 multiplicity 1; x = 1, multiplicity 1

Mathematics

Solve the problem.A reflecting telescope has a mirror shaped like a paraboloid of revolution. If the distance of the vertex to the focus is 34 feet and the distance across the top of the mirror is 78 inches, how deep is the mirror in the center?

A.  in.
B.  in.
C.  in.
D.  in.

Mathematics