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dem82 [27]
3 years ago
11

How long is a string reaching from the top of a 12 foot pole to a point on the ground that is 6 feet from the bottom of the pole

?
Mathematics
1 answer:
horrorfan [7]3 years ago
5 0
It would be 6 ft because it is at the top of a 12ft pole and it is 6 ft from the ground so 12-6=6
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The right answer is c. –2.24, 2, 2.24


This question needs to be solved in two ways. First, using a graphing calculator. Next, using a system of equations.


1. Using a graphing calculator.


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x^3-5x+5=2x^2-5


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So, we can say that this equation comes from a function given by:

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Finally, rounding noninteger roots to the nearest hundredth we have:


\boxed{Root_{1}=-2.24} \\ \\ \boxed{Root_{2}=2} \\ \\ \boxed{Root_{3}=2.24}


2. Using a system of equations.


The ordered equation is:

x^3-2x^2-5x+10=0


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x^3-5x-2x^2+10=0


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