1 year ago

WILL GIVE BRAINLIEST

Mathematics

2 answers:

gogolik [260]1 year ago

6 0

Answer:

4.5 -3

Step-by-step explanation:

liq [111]1 year ago

6 0

X=-3
Y=4,5
.........

You might be interested in

In the triangle below, what is the tangent of 45°?

Lana71 [14]

Answer:

Step-by-step explanation:

tan45° = $\frac{opposite}{adjacent}$ = $\frac{1}{1}$ = 1

6 0

3 years ago

Read 2 more answers

What is the equation of the line that passes through the point (-2,-2)and has a slope of 2

SOVA2 [1]

Answer:

y+2 = 2(x+2)

Step-by-step explanation:

given point (a,b) and slope m, point slope form of a line is:

y-b = m(x-a)

3 0

3 years ago

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

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

6 0

2 years ago

The area of a rectangle is 36 square inches, and its perimeter is 26 inches. What are the length and width of the rectangle?

gogolik [260]

Answer:

9 and 4

Step-by-step explanation:

5 0

2 years ago

Find the difference of the following sequence: -7, -9, -11...<br><br> Difference: ___

Anna007 [38]

Hmmmmmm I think I know the answer to this

3 0

3 years ago

Read 2 more answers