3. A rectangular picnic area of 8000 m² is being constructed by the Parks Commission along the edge of a river. It will be fenced on three sides, but not along the river. Ornamental fencing costing $12/m will be used on the side opposite the river and chain-link fencing costing $3/m will be used on the other two sides. What are the dimensions of the fence which will cost the least to make?
3. A rectangular picnic area of 8000 m² is being constructed by the Parks Commission along the edge of a river. It will be fenced on three sides, but not along the river. Ornamental fencing costing $12/m will be used on the side opposite the river and chain-link fencing costing $3/m will be used on the other two sides. What are the dimensions of the fence which will cost the least to make?
Calculus: Early Transcendentals
8th Edition
ISBN:9781285741550
Author:James Stewart
Publisher:James Stewart
Chapter1: Functions And Models
Section: Chapter Questions
Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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3. A rectangular picnic area of 8000 m² is being constructed by the Parks Commission along the edge a
river. It will be fenced on three sides, but not along the river. Ornamental fencing costing $12/m will be used on
the side opposite the river and chain-link fencing costing $3/m will be used on the other two sides. What are
the dimensions of the fence which will cost the least to make?
4. A boat leaves a dock at noon and heads west at a speed of 25 km/h. Another boat heads north at 20 km/h
and reaches the same dock at 1:00 pm. When were the boats closest to each other?
:
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