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