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3 years ago

11

Classify angle X Y Z. please choose 2 correct answers !!!! Will mark Brianliest !!!!!!!! (Last option is Isosceles triangle) !!!

!!!!!!

1 answer:

inn [45]3 years ago

8 0

Right and Scalene I believe

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Solve the system of equations using elimination. 2x + y = 9 8x – 2y = 6

raketka [301]

The answer i think is 18

6 0

3 years ago

Use Stokes' Theorem to evaluate |c F * dr where C is oriented counterclockwise as viewed from above.F(x, y, z) = xyi + 5zj + 7yk

Hunter-Best [27]

Compute the curl of $\vec F$ :

$\vec F(x,y,z)=xy\,\vec\imath+5z\,\vec\jmath+7y\,\vec k\implies\nabla\times\vec F(x,y,z)=2\,\vec\imath-x\,\vec k$

By Stoke's theorem, the (line) integral of $\vec F$ along $C$ is equivalent to the (surface) integral (or flux) of $\nabla\times\vec F$ across $S$ , the oriented surface with boundary $C$ .

Take $S$ to be the part of the plane $x+z=3$ within the cylinder $x^2+y^2=144$ . Parameterize $S$ by

$\vec s(u,v)=u\cos v\,\vec\imath+u\sin v\,\vec\jmath+(3-u\cos v)\,\vec k$

with $0\le u\le12$ and $0\le v\le2\pi$ . Take the normal vector to $S$ to be

$\vec s_u\times\vec s_v=u\,\vec\imath+u\,\vec k$

Then the integral is

$\displaystyle\int_C\vec F\cdot\mathrm d\vec r=\iint_S(\nabla\times\vec F)\cdot(\vec s_u\times\vec s_v)\,\mathrm du\,\mathrm dv$

$=\displaystyle\int_0^{2\pi}\int_0^{12}(2\,\vec\imath-u\cos v\,\vec k)\cdot(u\,\vec\imath+u\,\vec k)\,\mathrm du\,\mathrm dv$

$=\displaystyle\int_0^{2\pi}\int_0^{12}(2u-u^2\cos v)\,\mathrm du\,\mathrm dv=\boxed{288\pi}$

8 0

3 years ago

<img src="https://tex.z-dn.net/?f=%5Csqrt%5B-5%5D%7B144%7D" id="TexFormula1" title="\sqrt[-5]{144}" alt="\sqrt[-5]{144}" align="

san4es73 [151]

144 (Small 1/-5)

Answer: below

4 0

3 years ago

What is the measure of angle d1°

Leno4ka [110]

Answer:

40

Step-by-step explanation:

8 0

2 years ago

When the siren sounded, 440 were seen walking in the forest. If the other 360 were not seen, what fraction of the total was seen

melomori [17]

Fraction of the total was seen=(number of people were seen ) /(Total number of people)

Data:
number of people were seen=440
Total number of people=people saw +people didn´t see=440+360=800

Fraction of the toatal was seen=440/800=11/20

Answer: 11/20.

7 0

4 years ago

Read 2 more answers