4 years ago

What dose 8x-2y+x+x equal

Mathematics

1 answer:

ira [324]4 years ago

5 0

10x -2y is your Answer

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Find the area of the surface. the part of the hyperbolic paraboloid z = y2 − x2 that lies between the cylinders x2 + y2 = 16 and

meriva

Parameterize the surface (call it $\mathcal S$ ) by

$\mathbf s(u,v)=\langle u\cos v,u\sin v,u^2\sin^2v-u^2\cos^2v\rangle=\langle u\cos v,u\sin v,-u^2\cos2v\rangle$

with $4\le u\le5$ and $0\le v\le2\pi$ , which yields

$\mathrm dS=\|\mathbf s_u\times\mathbf s_v\|\,\mathrm du\,\mathrm dv=u\sqrt{1+4u^2}\,\mathrm du\,\mathrm dv$

Then the area of $\mathcal S$ is given by the surface integral

$\displaystyle\iint_{\mathcal S}\mathrm dS=\int_{v=0}^{v=2\pi}\int_{u=4}^{u=5}u\sqrt{1+4u^2}\,\mathrm du\,\mathrm dv=\dfrac{(101^{3/2}-65^{3/2})\pi}6$

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3 years ago

Which equation has a value less than 2,175?

erik [133]

The correct answer is d- one half x 2,175

Explanation: one half is 0.5 and 0.5 x 2,175 = 1087.5

6 0

3 years ago

Simplify. (-4 4/5) divide (-6 2/3)

irga5000 [103]

Answer:18/25

Step-by-step explanation:

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4 years ago

Simplify: 121/11 + 3(4)/2<br> Please and thank you. :)

slamgirl [31]

Answer:

Step-by-step explanation:

I don't know the explanation, but hoped this helped.

8 0

3 years ago

You are walking 3.5 miles per hour. At this pace, how long will it take to walk the 6 miles to school?

Shkiper50 [21]

Answer:

Step-by-step explanation:

speed = s = 3.5 miles / hour

d = 6 miles

t = ?

============

t = d / s

t = 6 / 3.5

t = 1.714 hours

t = 1 5/7 hours

You could figure this out in minutes for 5/7 but it will not make the time any clearer. You will still wind up with a fraction.

8 0

3 years ago