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Gennadij [26K]
3 years ago
14

) If the base of the panel is 31.2 inches and the height is 18 inches, what is the area of one triangular section? Show your wor

k
Mathematics
2 answers:
QveST [7]3 years ago
8 0
Area of triangle = base × height ÷ 2
18 × 31.2 ÷ 2 = 280.8
The area is 280.8 inches²
borishaifa [10]3 years ago
6 0
Well u do 31.2 x 18 which is 561.6 then u divide by 2 because the formula for a triangle is base x height divided by 2 so It is 280.8
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We can find the sings of the second derivate on the following intervals:

(-\infty Concave up

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Step-by-step explanation:

For this case we have the following function:

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We can find the first derivate and we got:

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In order to find the concavity we can find the second derivate and we got:

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We can set up this derivate equal to 0 and we got:

y'' =12x^2 -72=0

And solving we got:

x=\pm \sqrt{\frac{72}{12}} =\pm \sqrt{6}

We can find the sings of the second derivate on the following intervals:

(-\infty Concave up

x=-\sqrt{6}, y =-180 inflection point

(-\sqrt{6} Concave down

x=\sqrt{6}, y=-180 inflection point

(\sqrt{6} Concave up

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melamori03 [73]
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