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azamat
4 years ago
13

82" align="absmiddle" class="latex-formula">
hi! I'm new to this type of math. i could really use some help understanding this. if you can help, that would help si much!​
Mathematics
2 answers:
lyudmila [28]4 years ago
4 0
3.32936979 is the answer
goldenfox [79]4 years ago
3 0
Hey!! I am so happy to help you learn this!!! So, first, it is very hard to divide by a decimal, so it would help if you multiply everything by 1000. It would keep the answer the same, yet make it easier to think about. Now you have 5600 divided by 1682. Look at the picture from her on out!
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4x + 20=? it’s hard and i’m confused
NikAS [45]

Answer:

4(x+5) I

Step-by-step explanation:

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3 years ago
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Suppose that surface σ is parameterized by r(u,v)=⟨ucos(3v),usin(3v),v⟩, 0≤u≤7 and 0≤v≤2π3 and f(x,y,z)=x2+y2+z2. Set up the sur
Bad White [126]

Looks like you have most of the details already, but you're missing one crucial piece.

\sigma is parameterized by

\vec r(u,v)=\langle u\cos3v,u\sin3v,v\rangle

for 0\le u\le7 and 0\le v\le\frac{2\pi}3, and a normal vector to this surface is

\dfrac{\partial\vec r}{\partial u}\times\dfrac{\partial\vec r}{\partial v}=\left\langle\sin3v,-\cos3v,3u\right\rangle

with norm

\left\|\dfrac{\partial\vec r}{\partial u}\times\dfrac{\partial\vec r}{\partial v}\right\|=\sqrt{\sin^23v+(-\cos3v)^2+(3u)^2}=\sqrt{9u^2+1}

So the integral of f(x,y,z)=x^2+y^2+z^2 is

\displaystyle\iint_\sigma f(x,y,z)\,\mathrm dA=\boxed{\int_0^{2\pi/3}\int_0^7(u^2+v^2)\sqrt{9u^2+1}\,\mathrm du\,\mathrm dv}

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3 years ago
What are the point for a 90 degree rotation counterclockwise about the origin
Korvikt [17]

Answer:

Here is your solution.

6 0
3 years ago
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Nataly_w [17]
I hope this helps you

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Answer:

$72500

Step-by-step explanation:

$72500

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