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Table 3 Waste transportation cost (in dollars)

From: Using concave optimization methods for inexact quadratic programming problems with an application to waste management

  Time span (k = 1) Time span (k = 2) Time span (k = 3)
\(TR_{11k}^{\pm }\) [−0.0161X + 15.08, [−0.0181X + 16.02, [−0.0195X + 17.65,
  −0.0121X + 19.50] −0.0139X + 21.30] −0.0146X + 23.45]
\(TR_{12k}^{\pm }\) [−0.0142X + 12.63, [−0.0146X + 13.92, [−0.0169X + 15.31,
  −0.0105X + 16.89] −0.0116X + 18.58] −0.0127X + 20.35]
\(TR_{13k}^{\pm }\) [−0.0170X + 15.30, [−0.0188X + 16.84, [−0.0209X + 18.45,
  −0.0130X + 20.50] −0.0142X + 22.54] −0.0158X + 24.70]
\(TR_{21k}^{\pm }\) [−0.0130X + 11.55, [−0.0144X + 12.75, [−0.0155X + 14.01,
  −0.0098X + 15.40] −0.0109X + 16.97] −0.0118X + 18.66]
\(TR_{22k}^{\pm }\) [−0.0136X + 12.17, [−0.0149X + 13.40, [−0.0164X + 14.75,
  −0.0103X + 16.15] −0.0113X + 17.75] −0.0124X + 19.55]
\(TR_{23k}^{\pm }\) [−0.0120X + 10.05, [−0.0130X + 11.65, [−0.0143X + 12.83,
  −0.0090X + 14.02] −0.0098X + 15.52] −0.0108X + 17.06]
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