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4 years ago

Add. 2x+2/x^2+x + 3x+3/x^2+x Answer Choices: A 5/x B 5x/x+1 C 10/x^2 D 5/x+1

Mathematics

1 answer:

Rama09 [41]4 years ago

8 0

Answer:

Step-by-step explanation:

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Consider the force field and circle defined below.

grin007 [14]

By Green's theorem,

$\displaystyle\int_{x^2+y^2=9}\vec F(x,y)\cdot\mathrm d\vec r=\iint_D\left(\frac{\partial(xy)}{\partial x}-\frac{\partial(x^2)}{\partial y}\right)\,\mathrm dx\,\mathrm dy=\iint_Dy\,\mathrm dx\,\mathrm dy$

where $C$ is the circle $x^2+y^2=9$ and $D$ is the interior of $C$ , or the disk $x^2+y^2\le1$ .

Convert to polar coordinates, taking

$\begin{cases}x=r\cos\theta\\y=r\sin\theta\end{cases}\implies\mathrm dx\,\mathrm dy=r\,\mathrm dr\,\mathrm d\theta$

Then the work done by $\vec F$ on the particle is

$\displaystyle\iint_Dy\,\mathrm dx\,\mathrm dy=\int_0^{2\pi}\int_0^3(r\sin\theta)r\,\mathrm dr\,\mathrm d\theta=\left(\int_0^{2\pi}\sin\theta\,\mathrm d\theta\right)\left(\int_0^3r^2\,\mathrm dr\right)=\boxed0$

4 0

3 years ago

Carter answered 5% of the questions

Ipatiy [6.2K]

Answer:19/20

1-20=19

1÷20=0.05

0.05=5%

I hope this is good enough:

4 0

3 years ago

Simplify ........ (256y²⁵⁶) ⅛<br>help asap!!!!!

AVprozaik [17]

Answer:

2y^32

Step-by-step explanation:

Since 2^8 = 256, the eighth root of 256 is 2.

Next, we find the power of y by multiplying 256 and 1/8: result is 32.

Complete answer: 2y^32

7 0

3 years ago

A water pipe is 4 7/12 feet beneath the surface of the road. What is the elevation of the pipe, in feet, expressed as a decimal?

Andrej [43]

The answer is C. U just have to divide 7 and 12 to get your decimal

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3 years ago

Drag each figure to show if it is similar to the figure shown or why it is not similar. 4in by 6in

Schach [20]

Answer:

Step-by-step explanation:

cuz i said

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3 years ago