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LuckyWell [14K]
3 years ago
13

I need help on #3 please

Mathematics
2 answers:
Ganezh [65]3 years ago
4 0
The surface area of a shape is basically the sum of all the areas on a shape.

We’ve been given that the side is 17 mm.

An area of a square is A=s^2, in which s means side. So we do 17^2 to get the area of ONE of the squares.

Once we do that we get that the area of 1 square is 289.

Since there are 6 squares we need to multiply 289 by 6.

Therefore,

SA=1734mm^2
alex41 [277]3 years ago
3 0
The surface area is <span>1734mm
hope this helps:)</span>
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Use stokes' theorem to evaluate c f · dr where c is oriented counterclockwise as viewed from above. f(x, y, z = xyi + 5zj + 7yk,
Helga [31]
The intersection can be parameterized by

C:=\mathbf r(t)=\begin{cases}x(t)=6\cos t\\y(t)=6\sin t\\z(t)=5-6\cos t\end{cases}

with 0\le t.

By Stoke's theorem, the integral of \mathbf f(x,y,z)=xy\,\mathbf i+5z\,\mathbf j+7y\,\mathbf k along C is equivalent to

\displaystyle\int_C\mathbf f(x(t),y(t),z(t))\cdot\mathrm d\mathbf r(t)=\iint_S\nabla\times\mathbf f\,\mathrm dS

where S is the region bounded by C. The line integral reduces to

\displaystyle\int_0^{2\pi}(36\sin t\cos t\,\mathbf i+(25-30\cos t)\,\mathbf j+42\sin t\,\mathbf k)\cdot(-6\sin t\,\mathbf i+6\cos t\,\mathbf j+6\sin t\,\mathbf k)\,\mathrm dt
=\displaystyle\int_0^{2\pi}(54(\cos3t-\cos t)-30(3\cos2t-5\cos t+3)+(126-126\cos2t)\,\mathrm dt
=\displaystyle\int_0^{2\pi}(36+96\cos t-216\cos2t+54\cos3t)\,\mathrm dt
=72\pi
4 0
4 years ago
Help! I’ll give Brainly! It’s not 2,875 , thank you !!
olchik [2.2K]

9514 1404 393

Answer:

  $2,617.50

Step-by-step explanation:

Using this table, the tax is ...

  tax = 2% × $3000 + 3% × (5000 -3000) + 5% × (17000 -5000) + ...

     5.75% × (50,000 -17,000)

  = $60 + 60 + 600 + 1897.50

  tax = $2,617.50

__

<em>Additional comment</em>

Above $17,000, the tax is more easily computed as ...

  tax = (5.75% × income) - 257.50

Each tax bracket can have a simplified formula like this.

8 0
3 years ago
If it takes 1,800 foot-pounds of work to push a rock fifteen feet, what amount of force was used?
NeTakaya
Work = force * distance
1800 ft-lb = force * 15 ft
force = 1800 ft-lb / 15 ft
= 1800/15 ft-lb/ft
= 120 lbs
6 0
3 years ago
SOLVE 4 AND 5 !! I WILL GOVE BRAINLIST!!
Irina18 [472]

Answer:

This is your answer. thanks!!

7 0
3 years ago
3.242424... as a mixed number
lawyer [7]

Answer:

3 8/33

Step-by-step explanation:

6 0
3 years ago
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