2 years ago

In the diagram, what is mAngleVSR?

Mathematics

2 answers:

slava [35]2 years ago

8 0

Answer:

Step-by-step explanation:

I just took the test

Damm [24]2 years ago

6 0

Answer:

Step-by-step explanation:

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Evaluate the surface integral S F · dS for the given vector field F and the oriented surface S. In other words, find the flux of

7nadin3 [17]

The equation of the cone should be $z=\sqrt{x^2+y^2}$ . Parameterize $S$ by

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

with $1\le u\le2$ and $0\le v\le2\pi$ . Take the normal vector to $S$ to be

$\vec s_v\times\vec s_u=u\cos v\,\vec\imath+u\sin v\,\vec\jmath-u\,\vec k$

Then the integral of $\vec F$ across $S$ is

$\displaystyle\iint_S\vec F\cdot\mathrm d\vec S=\int_0^{2\pi}\int_1^2(-u\cos v\,\vec\imath-u\sin v\,\vec\jmath+u^3\,\vec k)\cdot(u\cos v\,\vec\imath+u\sin v\,\vec\jmath-u\,\vec k)\,\mathrm du\,\mathrm dv$

$=\displaystyle\int_0^{2\pi}\int_1^2(-u^2-u^4)\,\mathrm du\,\mathrm dv$

$=\displaystyle-2\pi\int_1^2(u^2+u^4)\,\mathrm du\,\mathrm dv=\boxed{-\frac{256\pi}{15}}$

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2 years ago

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A spinner with 4 colors is spun for a total of 50 trials. Yellow was selected 10 times. What is the experimental probability of

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1 year ago

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What key would you use if 10 students chose cartoons

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I am not 100% sure as to what you are asking, but I will try my best. Each key is equal to 3 students, so if 10 chose cartoons, a better key would be 2, 5, and 1. 1 might make it a bit cluttered, but if 10 students chose cartoons and you are using the 3 key, you can draw 1/3 of a box.

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Given the trinomial 5x^2-2x-3, predict the type of solutions.

pishuonlain [190]

Consider the trinomial $5x^2-2x-3.$

1. Find the discriminant:

$D=b^2-4ac=(-2)^2-4\cdot 5\cdot (-3)=4+60=64,\\ \\\sqrt{D}=8>0.$

2. Find the roots of given trinomial:

$x_{1,2}=\dfrac{-b\pm \sqrt{D}}{2a}=\dfrac{2\pm 8}{2\cdot 5}=1,-0.6.$

3. Conclusion: given trinomial has two different real roots.

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2 years ago

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A local charity receives 1/3 of funds raised during a craft fair and a bake sale. The total amount given to charity was 137.45.

Aleonysh [2.5K]

Answer:
The bake sale raised $45.81.

Step-by-step explanation:
You take the fraction (1/3) and turn it into a decimal point (.33). Then, you multiply the total (137.45) by the decimal (.33) to get the total amount raised from the bake sale (45.81) .

Hope this helps! ;)

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