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2 years ago

Algebra x = 3, y=2x and z=3y , whats z?

Mathematics

1 answer:

pantera1 [17]2 years ago

3 0

The answer is Z=18. 2x3=6 then 3x6=18

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38.Randy and Amy left school at the same time and began walking in oppo-

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Answer:

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Step-by-step explanation:

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3 years ago

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amm1812

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3 years ago

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18√2 - 2√50 I need to know

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Step-by-step explanation:

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3 years ago

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The base of a solid is the region in the first quadrant between the graph of y=x2 and the x -axis for 0≤x≤1 . For the solid, eac

nata0808 [166]

Answer:

The volume of the solid is π/40 cubic units.

Step-by-step explanation:

Please refer to the graph below.

Recall that the area of a semi-circle is given by:

$\displaystyle A=\frac{1}{2}\pi r^2$

The volume of the solid will be the integral from x = 0 to x = 1 of area A. Since the diameter is given by y, then the radius is y/2. Hence, the volume of the solid is:

$\displaystyle V=\int_0^1\frac{1}{2}\pi \left(\frac{y}{2}\right)^2\, dx$

Substitute:

$\displaystyle V=\frac{1}{2}\pi\int_0^1\left(\frac{x^2}{2}\right)^2\, dx$

Simplify:

$\displaystyle V=\frac{1}{2}\pi \int_0^1\frac{x^4}{4}\, dx$

Integrate:

$\displaystyle V=\frac{1}{2}\pi \left[\frac{x^5}{20}\Big|_0^1\right]$

Evaluate:

$\displaystyle V=\frac{\pi}{40}\left((1)^5-\left(0\right)^5\right)=\frac{\pi}{40}\text{ units}^3$

The volume of the solid is π/40 cubic units.

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3 years ago

Algebra x = 3, y=2x and z=3y , whats z?​

Algebra x = 3, y=2x and z=3y , whats z?