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4 years ago

21,985,233 rounded to the millions place

Mathematics

1 answer:

katrin [286]4 years ago

6 0

21,985,233 to the millions place is 22,000,000

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A fluid has density 860 kg/m3 and flows with velocity v = z i + y2 j + x2 k, where x, y, and z are measured in meters and the co

ehidna [41]

You can use the divergence theorem:

$\vec v=z\,\vec\imath+y^2\,\vec\jmath+x^2\,\vec k$

has divergence

$\mathrm{div}\vec v=\dfrac{\partial z}{\partial x}+\dfrac{\partial y^2}{\partial y}+\dfrac{\partial x^2}{\partial z}=2y$

Then the rate of flow out of the cylinder (call it <em>R</em>) is

$\displaystyle\iint_{\partial R}\vec v\cdot\mathrm d\vec S=\iiint_R\mathrm{div}\vec v\,\mathrm dV$

(by divergence theorem)

$=\displaystyle2\int_0^{2\pi}\int_0^5\int_0^1r^2\sin\theta\,\mathrm dz\,\mathrm dr\,\mathrm d\theta$

(after converting to cylindrical coordinates)

whose value is 0.

6 0

3 years ago

Round 6.94729776259 to 5 decimal places.

maria [59]

Answer

6.9473

Step-by-step explanation:

8 0

3 years ago

Which expression has a value of 35 when p = 7?

Pavlova-9 [17]

Answer:

B) 5p

Step-by-step explanation:

If you substitute 7 in for each equation you will see that the answers are either 7, 38, or 32, which are not 35. But when you substitute 7 in for B, 5(7), and multiply it out you get 35. I hope this helps :)

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3 years ago

John is at a local bait shop; he wants to buy bait for his fishing trip. At the store, they are selling live bait for $12 a poun

brilliants [131]

Answer:

Step-by-step explanation:

x= live bait and y= natural bait

12x+7y=63

x>3

x can be anywhere between 3 and 5.

when x=3, y=3

when x=4, y=2

when x=5, y=0

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3 years ago

Read 2 more answers

A 22° B 54° С What is the measure of AD? O 108° 0 27° 126 54°

Anna35 [415]

Answer:

A. 108

sorry if im wrong but if u am I'm so sorry

6 0

2 years ago