Solve the problem.A piece of cable which is 
m long is to be cut into pieces 
m long. How many pieces will there be?
A. 16 pieces
B. 
piece
C. 80 pieces
D. 100 pieces
Answer: A
Mathematics
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Solve.3x + 2y + z = -174x - 5y - z = 252x + y + 2z = -15
A. (-1, -5, -4) B. (-4, -1, -5) C. (-1, -4, -5) D. (-4, -5, -1)
Mathematics
Solve the equation.|x| = -11
A. {11} B. {-11} C. {11, -11} D. no solution
Mathematics
Solve the equation. If the solutions involve square roots, give both the exact solutions and the approximate solutions to three decimal places.12b2 + 40b = -25
A. - 
, - 
B. - 
, - 
C. 
, 
D. 
, 
Mathematics
Restrict the domain of f(x) = x2 + 5 to x ? 0. Use a graphing utility to graph the function. ?
A. ?
B. 
C. ?
D. ?
E. 
Mathematics