coastline. (a) How much would the pipeline cost if the pipe went directly to shore (for 2 miles) and then along the shore for 3 miles? (If using scientific notation, replace the e in the Julia output with E.) (b) How much would the pipeline cost if the pipe went directly to the refinery? (If using scientific notation, replace the e in the Julia output with E.) (c) What formula will describe the cost, where x, 0

Intermediate Algebra
10th Edition
ISBN:9781285195728
Author:Jerome E. Kaufmann, Karen L. Schwitters
Publisher:Jerome E. Kaufmann, Karen L. Schwitters
Chapter7: Equations And Inequalities In Two Variables
Section7.2: Linear Inequalities In Two Variables
Problem 37.3PS
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Saving money
It is desired to build a pipeline from an at-sea oil well at P to a refinery on
the shore at Q. Building a pipe costs 500, 000 dollars per mile under water
and 300,000 dollars per mile under land.
(This problem borrowed from here (example 5)).
The figure computes the cost for an adjustable set of points P, Q, and
(x,0).
JSXGraph .2.2 Copyright (C) see https://jsxgraph.org
4.5
4
3.5
P
30
2.5
cost = 2.78M
2
1.5
0.5
(x,0)
-0.5
Suppose the oil well is 2 miles offshore and the refinery is 3 miles along the
coastline.
(a) How much would the pipeline cost if the pipe went directly to shore (for
2 miles) and then along the shore for 3 miles? (If using oniantif
renlace thn
Transcribed Image Text:Saving money It is desired to build a pipeline from an at-sea oil well at P to a refinery on the shore at Q. Building a pipe costs 500, 000 dollars per mile under water and 300,000 dollars per mile under land. (This problem borrowed from here (example 5)). The figure computes the cost for an adjustable set of points P, Q, and (x,0). JSXGraph .2.2 Copyright (C) see https://jsxgraph.org 4.5 4 3.5 P 30 2.5 cost = 2.78M 2 1.5 0.5 (x,0) -0.5 Suppose the oil well is 2 miles offshore and the refinery is 3 miles along the coastline. (a) How much would the pipeline cost if the pipe went directly to shore (for 2 miles) and then along the shore for 3 miles? (If using oniantif renlace thn
(x,0)
5.
-0.5
-1
-1.5
-2
Suppose the oil well is 2 miles offshore and the refinery is 3 miles along the
coastline.
(a) How much would the pipeline cost if the pipe went directly to shore (for
2 miles) and then along the shore for 3 miles? (If using scientific notation,
replace the e in the Julia output with E.)
(b) How much would the pipeline cost if the pipe went directly to the
refinery? (If using scientific notation, replace the e in the Julia output with
E.)
(c) What formula will describe the cost, where x, 0 <x < b, is the position
along the shore where the pipeline meets, a the distance out from shore,
and b the distance along the shore.
c(x)
500 000 sqrt (a 2 + x^2) + 300_000 * (b-x)
%3D
c(x)
500 000 sqrt (a 2 + x^2) + 300 000 * sqrt (b-x 2)
500 000 (a + x) 2 + 300 000 (b - x)*2
%3D
Oc(x)
(d) What is the cost of the cheapest possible pipeline? (If using scientific
notation, replace the e in the Julia output with E.)
Transcribed Image Text:(x,0) 5. -0.5 -1 -1.5 -2 Suppose the oil well is 2 miles offshore and the refinery is 3 miles along the coastline. (a) How much would the pipeline cost if the pipe went directly to shore (for 2 miles) and then along the shore for 3 miles? (If using scientific notation, replace the e in the Julia output with E.) (b) How much would the pipeline cost if the pipe went directly to the refinery? (If using scientific notation, replace the e in the Julia output with E.) (c) What formula will describe the cost, where x, 0 <x < b, is the position along the shore where the pipeline meets, a the distance out from shore, and b the distance along the shore. c(x) 500 000 sqrt (a 2 + x^2) + 300_000 * (b-x) %3D c(x) 500 000 sqrt (a 2 + x^2) + 300 000 * sqrt (b-x 2) 500 000 (a + x) 2 + 300 000 (b - x)*2 %3D Oc(x) (d) What is the cost of the cheapest possible pipeline? (If using scientific notation, replace the e in the Julia output with E.)
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