Solve the problem. Round your answer to the nearest tenth.Find the work done by a force of 4 pounds acting in the direction of 41° to the horizontal in moving an object 2 feet from (0, 0) to (2, 0).

A. 6.0 ft-lb
B. 12.1 ft-lb
C. 6.5 ft-lb
D. 5.2 ft-lb


Answer: A

Mathematics

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Solve the problem.Find the centroid of the region cut from the first quadrant by the line .

A.  =  = 
B.  = 2,  = 2
C.  = 4,  = 4
D.  =  = 

Mathematics

Write the ordered pair for each point shown in the xy-plane.

A. A(4, 18), B(6, -3) B. A(1, 4), B(-3, 6) C. A(1, 4), B(6, -3) D. A(1, 6), B(4, 6)

Mathematics

Use a graphing utility to find or approximate solutions to the equation. If necessary, round your answers to three decimal places.(x + 10)(x - 4) = -45

A. -1, -5 B. 4, -55 C. -41, -10 D. -10, 4

Mathematics

Solve the equation.1440 = n ? 18

A. n = 77 B. n = 80 C. n = 75 D. n = 79

Mathematics