A River 1. The cost of pipe to go underwater is 60% more than the cost...

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A River 1. The cost of pipe to go underwater is 60% more than the cost of pipe used in dry-land situations. A pipeline must be extended from point A to refinery B, 8 km down the river. The river width is 1 km. Find the best way to cross the river so that the total cost of the pipe is the lowest one. 2. An isosceles triangle is inscribed in a circle the radius of which is 10 cm. a. Find all angles of the triangle, maximizing the area of the triangle. b. Determine the maximum area of the triangle. A River 1. The cost of pipe to go underwater is 60% more than the cost of pipe used in dry-land situations. A pipeline must be extended from point A to refinery B, 8 km down the river. The river width is 1 km. Find the best way to cross the river so that the total cost of the pipe is the lowest one. 2. An isosceles triangle is inscribed in a circle the radius of which is 10 cm. a. Find all angles of the triangle, maximizing the area of the triangle. b. Determine the maximum area of the triangle.

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1 The best way to cross the river so that the total cost of the pipe is the lowest one is to lay the ... View the full answer