3 years ago

What is the approximate value of ? Round your answer to the nearest hundredth. 1.99 2.38 2.50 4.98

Mathematics

2 answers:

andrew11 [14]3 years ago

7 0

Answer:

Step-by-step explanation:

Missing info ! Try to get it posted so we can help......

fiasKO [112]3 years ago

7 0

Answer:D

Step-by-step explanation:

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Step-by-step explanation:

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3 years ago

A potter forms a piece of clay into a cylinder. As he rolls it, the length, L, of the cylinder increases and the radius, r, decr

Elena L [17]

Answer:

$0.0727 cm\: per\: second$

Step-by-step explanation:

The Volume of the cylinder is constant

Volume of a cylinder, $V=\pi r^2h$

Given:

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

$0=\pi* 2^2*0.8 + 2\pi*2*11\frac{dr}{dt}\\0=3.2\pi+44\pi\frac{dr}{dt}\\44\pi\frac{dr}{dt}=-3.2\pi\\\frac{dr}{dt}=\frac{-3.2\pi}{44\pi} \\\frac{dr}{dt}=-0.0727 cm\: per\: second$

The radius is decreasing at a rate of $0.0727 cm\: per\: second$

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3 years ago