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3 years ago

Please help quickly, have to turn in, in 25 minutes

Mathematics

1 answer:

tatiyna3 years ago

4 0

Answer:

x=15

Step-by-step explanation:

2x+150=180

2x=39

x=15

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valentina_108 [34]

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Step-by-step explanation:

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About the $y$ -axis (shell method):

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$\displaystyle2\pi\int_2^5(7-x)\left(6-\left(\frac43x-\frac23\right)\right)\,\mathrm dx=\frac{8\pi}3\int_2^5(35-12x+x^2)\,\mathrm dx=\boxed{48\pi}$

About $y=2$ (washer method):

$\displaystyle\pi\int_2^5\left((6-2)^2-\left(\frac43x-\frac23-2\right)^2\right)\,\mathrm dx=\frac{16\pi}9\int_2^5(5+4x-x^2)\,\mathrm dx=\boxed{32\pi}$

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3 years ago

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Brilliant_brown [7]

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2 years ago