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Mathematics, 08.03.2021 17:10 keshan3000
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"A power line must be laid to connect two towns, A and B. They are situated on opposite sides of a broad river that is 1 kilometre wide.
Town B is 5 kilometres down the river from a point C, directly across the river from town A, as shown on the diagram ATTACHED.
The cost of installing the power line is estimated at $20 000 per kilometre under water and $10 000 per kilometre on dry land. The proposed budget to install the lines is $64 000."
Where should the powerlines meet the bank of the river to have the lowest cost??
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"A power line must be laid to connect two towns, A and B. They are situated on opposite...
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