3 years ago

4q=52 wats the answer to this equation

Mathematics

1 answer:

Darya [45]3 years ago

6 0

4q=52

divide by 4 for both sides

4q/4= 52/4

q= 13

Answer : q=13

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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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2 years ago

Last year, elsa opened an investment account with 8500 . at the end of the year, the amount in the account had increased by 27.6

Dafna11 [192]

8500 + 27.6 = 8527 dollars and 60 cents

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2 years ago

A. Is this an arithmetic sequence? How do you know?

pogonyaev

Answer:

a. Yes. The difference is common and equal to $1750

b. $1750

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e. After another 10 years (on the top of 5 given) the investment will be:

y = 1750*15 + 20000 = $46250

f. After 20 years the value of investment will be:

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If 60 U.S. dollars represwnt 50 euros, we will add.

80 euros represent 90 dollars because: there are 10 more euros than dollars.

Hope this helps!

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3 years ago

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What is the value of the constant in the expression?<br> 2x2 + 3x - y - 18 + 7y2

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3 years ago

4q=52 wats the answer to this equation ​

4q=52 wats the answer to this equation