Find the measure of the dihedral angle indicated.The figure shown is a right prism whose bases are regular triangles. Find the measure of the dihedral angle between each lateral face and a base.

A. 45°
B. 60°
C. 90°
D. 120°


Answer: C

Mathematics

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Solve the problem.Refer to the following preference schedule. If the plurality method is used to determine the winner, is Fairness Criterion 2 satisfied?

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The graph of a linear function f is shown. Identify the slope, y-intercept, and x-intercept.

A. -2; (0, 4), (8, 0)
B. - ; (0, 4), (8, 0)
C. ; (0, 4), (8, 0)
D. - ; (0, 8), (4, 0)

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Solve the problem.The length a spring is stretched from its natural length with work, W is given by  L = where k is a constant for the given spring. If a certain spring has a constant of 65.7, and the spring is to be stretched 2.6 feet from its natural length, how much work will be necessary? Round to the nearest tenth of a foot-pound.

A. 444.1 foot-pounds B. 85.4 foot-pounds C. 222.1 foot-pounds D. 53 foot-pounds

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Use the given information to find the quadrant in which ? lies.cot ? < 0 and cos ? > 0

A. Quadrant IV B. Quadrant I C. Quadrant II D. Quadrant III

Mathematics