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Lesechka [4]
2 years ago
13

If AB= 4 units and DC=4 units , what is the length of BC?​

Mathematics
1 answer:
larisa [96]2 years ago
4 0

answer 4

Step-by-step explanation:

if ab 4

dc 4

assuming a square bc 4

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A fluid moves through a tube of length 1 meter and radius r=0.006±0.00025 meters under a pressure p=4⋅105±2000 pascals, at a rat
iris [78.8K]

Answer:

Maximum error for viscosity is 17.14%

Step-by-step explanation:

We know that everything is changing with respect to the time, "r" is changing with respect to the time, and also "p" just "v" will not change with the time according to the information given, so we can find the implicit derivative with respect to the time, and since

n = (\frac{\pi}{8}) (\frac{pr^4}{v})\\

The implicit derivative with respect to the time would be

\frac{dn}{dt}  = \frac{\pi}{8} ( \frac{r^4}{v} \frac{dp}{dt}  + \frac{4pr^3}{v}\frac{dr}{dt} )

If we multiply everything by    dt   we get  

dn  = \frac{\pi}{8} ( \frac{r^4}{v} dp  + \frac{4pr^3}{v}  dr})

Remember that  the error is given by   \frac{dn}{n}   therefore doing some algebra we get that

\frac{dn}{n}  =    4 \frac{dr}{r}  +  \frac{dp}{p}

Since,    r = 0.006   ,   dr = 0.00025 ,  p = 4*105   ,   dp = 2000  we get that

\frac{dn}{n} = 0.1714

Which means that  the maximum error for viscosity is 17.14%.  

5 0
3 years ago
Which exponential function has an x-intercept?
klasskru [66]

Answer:

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7 0
3 years ago
Which inequality is represented by this graph? (0, 1) (6,0)
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Answer:

Hope this isn't too late. The Answer Is D.

Step-by-step explanation:

The graph line becomes dotted when the inequality is less than or greater than, never less than or equal to./ greater than or equal to. This leaves to choices: B and D. D is the correct answer because the way the shading is going. because the shading is going up that means that the inequality is greater than.


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Alex777 [14]

Hi there!

\large\boxed{-n^2 + 4n}

Begin by evaluating f - g:

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Simplify:

4n - 5 - n² + 5  = 4n - n²

Or it can be written as -n² + 4n to match the first answer choice.

3 0
2 years ago
Which answer best details a weakness of the Articles of Confederation?
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Answer:

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