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Masja [62]
3 years ago
5

Based on the picture below:

Mathematics
1 answer:
galben [10]3 years ago
5 0

Answer:

72000

Step-by-step explanation:

Look at the triangle: 450 yards and 320 yards, with 80 degrees between these two sides. Use the 450 yard side as base. You want the altitude, which can be 320%2Asin%2880%29.

AREA is  multiply the base by the height, and then divide by 2.

more simply, area is 72000 Square Yards.

hope it helps:)

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your sister is considering two different shapes for her garden. one is a square with side lengths of 3.5 meters, and the other i
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saw5 [17]
Treat \mathcal C as the boundary of the region \mathcal S, where \mathcal S is the part of the surface z=2xy bounded by \mathcal C. We write

\displaystyle\int_{\mathcal C}(y+7\sin x)\,\mathrm dx+(z^2+9\cos y)\,\mathrm dy+x^3\,\mathrm dz=\int_{\mathcal C}\mathbf f\cdot\mathrm d\mathbf r

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so the line integral is equivalent to

\displaystyle\iint_{\mathcal S}\nabla\times\mathbf f\cdot\mathrm d\mathbf S
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with 0\le u\le1 and 0\le v\le2\pi. Then

\mathrm d\mathbf S=\left(\dfrac{\partial\mathbf s}{\partial u}\times\dfrac{\partial\mathbf s}{\partial v}\right)\,\mathrm du\,\mathrm dv=(2u^2\cos v,2u^2\sin v,-u)\,\mathrm du\,\mathrm dv

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\displaystyle\iint_{\mathcal S}(-2u^2\sin2v,-3u^2\cos^2v,-1)\cdot(2u^2\cos v,2u^2\sin v,-u)\,\mathrm du\,\mathrm dv
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3 years ago
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bekas [8.4K]

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