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vitfil [10]
4 years ago
15

A pen in the shape of an isosceles right triangle with legs of length x ft and hypotenuse of length h ft is to be built. If fenc

ing costs $ 4 divided by ft for the legs and $ 16 divided by ft for the​ hypotenuse, write the total cost C of construction as a function of h.
Mathematics
1 answer:
Vaselesa [24]4 years ago
5 0

Answer:

\frac{8h}{\sqrt{2}} + 16h

Step-by-step explanation:

First we need to compute the side length as a function of h

So x be the side length of the right isosceles triangle, in Pythagorean formula we have

x^2 + x^2 = h^2

2x^2 = h^2

x = \frac{h}{\sqrt{2}}

The cost for the legs is

C_l = 4*2x = \frac{8h}{\sqrt{2}}

The cost for the hypotenuse is

C_h = 16h

So the total cost in term of h is

C = C_l + C_h = \frac{8h}{\sqrt{2}} + 16h

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