I don t get many questions, I m online schooled,

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destinypierre

15.04.2021

Mathematics

4000 grams also u wont give brainliest

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36/9=4

4 kilograms is 4000 grams

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salvadorjr1226p4zkp3

15.04.2021

Mathematics

I DON'T KNOW THE ANSWER BUT I DO KNOW

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YOUR DOING GREAT THE WORLD IS BETTER WITH YOU IN IT! STAY WELL!

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Ответ:

Gattuso

26.10.2021

Mathematics

Answer24πexplanationthe region in question is graphed out in the attachment. the method of cylindrical shells revolving around the y-axis: $\displaystyle v = \int_a^b \overbrace{\underbrace{2\pi (\text{radius})}_{\text{circumference}}(\text{height})}^{\text{cylinder formula}} \, dx$ region goes from x = 0 to x = 2 so a = 0 and b = 2the radius is the x-coordinate (in the region 0 ≤ x ≤ 2) radius = xthe height is the top function minus the bottom function: height = (18x - 6x²) - (3x²) height = 18 - 9x²the volume is therefore $\begin{aligned} v & = \int_0^2 2\pi (x)(18x- 9x^2) \, dx \\ & = 2\pi\int_0^2 (18x^2- 9x^3) \, dx \\ & = 2\pi \left[\frac{18x^3}{3} - \frac{9x^4}{4} \right]_0^2 = 2\pi \left[6x^3 - \frac{9x^4}{4} \right]_0^2\\ & = 2\pi \left(6(2)^3 - \frac{9(2)^4}{4} - 0 \right) \\ & = 2\pi \left(6(8) - \frac{9(2)^2}{1}\right) \\ & = 2\pi \left(48 - 36\right) \\ & = 24\pi \end{aligned}$

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