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3 years ago

5

The perimeter of a rectangular is 86 m. If the width were doubled and the length were increased by 22 m, the perimeter would be

166 m. What are the length and width of the rectangle?

1 answer:

Zina [86]3 years ago

3 0

Write them as system of equations:
x=length, y=width
2x+2y=86
4x+2y+22=166

when you solve, then x=length=7, y=width=36

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Answer:

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Step-by-step explanation:

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(a) To solve the differential equation, first separate the variables.

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(b) Since temperature t ≠ 0, the initial condition t > 0 will not make much of a difference because, Cos(wt) = Cos(-wt).

It is not any different from when t < 0.

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