Two posts, one 12 feet high and the other 28 feet high, stand 30 feet apart. They are to be stayed by two wires, attached to a single stake, running from the ground level to the top of each post. The total length of the wire is given by L = Jx2 + 144+ Vx² – 60x + 1684 where x is the distance between the stake and the shorter post. Find the distance x that minimizes the total length of the wire.

Intermediate Algebra
19th Edition
ISBN:9780998625720
Author:Lynn Marecek
Publisher:Lynn Marecek
Chapter9: Quadratic Equations And Functions
Section9.5: Solve Applications Of Quadratic Equations
Problem 9.76TI: The distance between opposite corners of a rectangular field is four more than the width of the...
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Two posts, one 12 feet high and the other 28 feet high, stand 30 feet apart. They are to be stayed by
two wires, attached to a single stake, running from the ground level to the top of each post.
The total length of the wire is given by
L = Vx2 + 144 + Vx2 – 60x + 1684
where x is the distance between the stake and the shorter post.
Find the distance x that minimizes the total length of the wire.
Transcribed Image Text:Two posts, one 12 feet high and the other 28 feet high, stand 30 feet apart. They are to be stayed by two wires, attached to a single stake, running from the ground level to the top of each post. The total length of the wire is given by L = Vx2 + 144 + Vx2 – 60x + 1684 where x is the distance between the stake and the shorter post. Find the distance x that minimizes the total length of the wire.
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