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3 years ago

What is the volume of a refrigerator that is 6 feet high, 2 feet long, and 3 feet wide?

Mathematics

2 answers:

sergey [27]3 years ago

8 0

Volume of a rectangle [ V = h * l * w ]

V = 6 * 2 * 3

V = 12 * 3

V = 36

Therefore, the answer is B. 36 cubic feet

Best of Luck!

Radda [10]3 years ago

3 0

Answer:

B, 36 cubic feet

Step-by-step explanation:

The volume of a rectangular prism can be found by multiplying together all of the side lengths. 6*2*3=36 cubic feet, or option B. Hope this helps!

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work:
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3 years ago

A spherical balloon is inflating with helium at a rate of 64 pi StartFraction ft cubed Over min EndFraction . How fast is the b

olga2289 [7]

Answer:

The radius of the balloon is increasing at a rate of 4 feet per minute.

Step-by-step explanation:

We are given the following in the question:

$\dfrac{dV}{dt} = 64\pi \dfrac{\text{ ft}^3}{\text{min}}$

Volume of sphere is given by

$V = \dfrac{4}{3}\pi r^3$

where r is the radius of the balloon.

Instant radius, r = 2 ft

Rate of change of volume =

$\dfrac{dV}{dt} = \dfrac{d}{dt}(\dfrac{4}{3}\pi r^3)\\\\\dfrac{dV}{dt} =4\pi r^2\dfrac{dr}{dt}$

Putting values, we get,

$64\pi = 4\pi (2)^2\dfrac{dr}{dt}\\\\\Rightarrow \dfrac{dr}{dt} = 4$

Thus, the radius of the balloon is increasing at a rate of 4 feet per minute.

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3 years ago

What is the value of the digit 4 in the number 84230

Ratling [72]

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Exact Form:

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Decimal Form:

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Annette [7]

Answer:

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Step-by-step explanation:

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