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2 years ago

PLEASE I NEED HELP!!! BRAINLIEST FOR THE FASTEST ANSWER

Mathematics

1 answer:

kozerog [31]2 years ago

4 0

Hello!

[(4πr³)/3]/2

r = 7,5yd

[4 *3,14*7,5³/3]/2

=> 883, 125yds ³

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3 years ago

Write y=-(3/5)x-2 in standard form using integers <br> please thank you

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3 years ago

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Step-by-step explanation:

Let the two consecutive numbers be 2n and 2n+2

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2 years ago

Water is added to a cylindrical tank of radius 5 m and height of 10 m at a rate of 100 L/min. Find the rate of change of the wat

nirvana33 [79]

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And replacing we got:

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Step-by-step explanation:

For a tank similar to a cylinder the volume is given by:

$V = \pi r^2 h$

For this case we know that $r=5m$ represent the radius, $h = 10m$ the height and the rate given is:

$\frac{dV}{dt}= \frac{100 L}{min}$

For this case we want to find the rate of change of the water level when h =6m so then we can derivate the formula for the volume and we got:

$\frac{dV}{dt}= \pi r^2 \frac{dh}{dt}$

And solving for $\frac{dh}{dt}$ we got:

$\frac{dh}{dt}= \frac{\frac{dV}{dt}}{\pi r^2}$

We need to convert the rate given into m^3/min and we got:

$Q = 100 \frac{L}{min} *\frac{1m^3}{1000L}= 0.1 \frac{m^3}{min}$

And replacing we got:

$\frac{dh}{dt}=\frac{0.1 m^3/min}{\pi (5m)^2}= 0.0012732 \frac{m}{min}$

And that represent $0.127 \frac{cm}{min}$

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3 years ago

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3 years ago

PLEASE I NEED HELP!!! BRAINLIEST FOR THE FASTEST ANSWER​

PLEASE I NEED HELP!!! BRAINLIEST FOR THE FASTEST ANSWER