3 years ago

Which of the following equations is perpendicular to the line y = 2x + 8?

Mathematics

1 answer:

EastWind [94]3 years ago

3 0

ya I want to go get back to the school and I will get back to school today I don’t have

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2 years ago

The function f(x)=-(x-3)^2 +9 can be used to represent the area of a rectangle with the perimeter of 12 units, as a function of

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Maximum area of the rectangle is $9cm^{2}$

<u>Explanation:</u>

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Considering the dimensions to be in cm

$f(x) = -(x-3)^{2} +9\\f(x) = -(x^{2} +9 - 6x)+9\\f(x) = -x^{2} +6x\\f'(x) = -2x+6\\-2x+6 = 0\\2x=6\\x=3cm\\\\$

Putting the value of x = 3

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Therefore, maximum area of the rectangle is $9cm^{2}$

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2 years ago

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2 years ago

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