Solve the problem.Find the work done in winding up a 175-ft cable that weighs 3.00 lb/ft.
A. 45,900 ft?lb
B. 15,300 ft?lb
C. 138,000 ft?lb
D. 788 ft?lb
Answer: A
Mathematics
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Solve the system of equations. x1 - x2 + 3x3 = -82x1 + x3 = 0 x1 + 5x2 + x3 = 40
A. (0, -8, -8) B. (0, 8, 0) C. (-8, 0, 0) D. (8, 8, 0)
Mathematics
Use the properties of real numbers to simplify the expression.5s - 7t
A. -2s B. -2st C. Cannot be simplified D. -2t
Mathematics
Solve the inequality, then graph the solution.4 < 
< 15
A.
 ? |
B.
? 
C.
D.
 ? |
Mathematics
Translate the question into an equation. Do not solve.3.1 is what percent of 31?
A. 3.1 ? 31 = n B. 3.1 ? n = 31 C. 3.1 ? n = 31% D. 3.1 = n ? 31
Mathematics