All categories

3 years ago

Please help, thank you!

Mathematics

1 answer:

geniusboy [140]3 years ago

4 0

Answer:

Es que te ayude amigo medas corona por favor plis

You might be interested in

−23−(−113) i think it is -2/3

dangina [55]

-23-(-113)
Subtract -113 from -23. This would also be the same as adding 113 to -23 because the two negative signs are equal to one positive sign.
Final Answer: 90

7 0

3 years ago

Read 2 more answers

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

Chelsea has 11 times as many art brushes as Monique. If they have 60 art brushes altogether, how many brushes does chelsea have

Keith_Richards [23]

I did it on the calculator the answer was 0.1833333333333333 i do not know if this is correct if its incorrect then srry :(

6 0

4 years ago

The diameter of a circle is 20 meters . What is the area ?

schepotkina [342]

Answer:

100pi m or approximately 314 m^2

Step-by-step explanation:

We need to find the radius to find the area

r = d/2 = 20/2 = 10

The area of a circle is

A = pi r^2

A = pi (10)^2

A = 100 pi m^2

If we approximate pi by 3.14

A = 100*3.14

A = 314 m^2

5 0

3 years ago

Read 2 more answers

Select the correct answer.

miv72 [106K]

The 24 walls must paint by each volunteer if the work is divided evenly and the club has 36 volunteers.

<h3>What is a fraction?</h3>

Fraction number consists of two parts, one is the top of the fraction number which is called the numerator and the second is the bottom of the fraction number which is called the denominator.

We have:

As part of a community-service project, a local club has decided to paint 864 walls across town. The club has 36 volunteers.

Total number of volunteers = 36

Number of walls = 864

The number of walls each volunteer paint can be expressed as a fraction:

= 864/36

= 24

Thus, the 24 walls must paint by each volunteer if the work is divided evenly and the club has 36 volunteers.

Learn more about the fraction here:

brainly.com/question/1301963

#SPJ1

4 0

2 years ago