Solve the problem.A wheel with radius 3 m rolls at 20 rad/s. How fast is a point on the rim of the wheel rising when the point is  radians above the horizontal (and rising)? (Round your answer to one decimal place.)

A. 15.0 m/s
B. 30.0 m/s
C. 60.0 m/s
D. 120.0 m/s


Answer: B

Mathematics

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Solve the problem.Two boats are pulling a disabled vessel toward the landing dock with forces of 920 lb and 840 lb. The angle between the forces is 23.7°. Find the direction and magnitude of the equilibrant.

A. 1723 lb at an angle of 168.7° with the 920-lb force B. 1723 lb at an angle of 78.7° with the 840-lb force C. 172 lb at an angle of 168.7° with the 920-lb force D. 1723 lb at an angle of 11.3° with the 920-lb force

Mathematics

Determine whether the indicated ordered pair lies on the graph of the given equation.y =  - 4, (4, 0)

A. Yes B. No

Mathematics

Multiply and simplify.18 

A.
B. -162
C. -2
D. 2

Mathematics

Use a graphing calculator to graph the piecewise-defined function, using the window indicated.f(x) = ; window [-4, 6] by [-2, 8]

A.

B.

C.

D.

Mathematics