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3 years ago

I dont know the answers to this and its SUPER important I get it right.

Mathematics

1 answer:

Mazyrski [523]3 years ago

6 0

Answer:

all of dem

Step-by-step explanation:

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Use a surface integral to find the general formula for the surface area of a cone with height latex: h and base radius latex: a(

BlackZzzverrR [31]

We can parameterize this part of a cone by

$\mathbf s(u,v)=\left\langle u\cos v,u\sin v,\dfrac hau\right\rangle$

with $0\le u\le a$ and $0\le v\le2\pi$ . Then

$\mathrm dS=\|\mathbf s_u\times\mathbf s_v\|\,\mathrm du\,\mathrm dv=\sqrt{1+\dfrac{h^2}{a^2}}u\,\mathrm du\,\mathrm dv$

The area of this surface (call it $\mathcal S$ ) is then

$\displaystyle\iint_{\mathcal S}\mathrm dS=\sqrt{1+\frac{h^2}{a^2}}\int_{v=0}^{v=2\pi}\int_{u=0}^{u=a}u\,\mathrm du\,\mathrm dv=a^2\sqrt{1+\frac{h^2}{a^2}}\pi=a\sqrt{a^2+h^2}\pi$

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3 years ago

Let's talk about dora :)

yan [13]

Answer:

DORA

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

On the following composite figure, all angles are right angles. All short edges of the figure have a measure of 1.5 centimeters.

Aleks04 [339]

Answer:

Step-by-step explanation:

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4 years ago

Can you help me how to solve this problem ? thank you

Art [367]

Since BCDEF is regular, we know right away that $x=\dfrac{360}5=72$ because the measures of all exterior angles of any regular polygon add to 360 degrees; they are all of equal measure here, so we divide 360 by 5.

For the pentagon BCIHG, the same is true, which means we have the equation

$\underbrace{72}_x+\underbrace{72}_{\angle_{ext}BCD}+\underbrace{90}_{\angle_{ext}CIH}+\underbrace{(180-y)}_{\angle_{ext}IHG}+\underbrace{68}_{\angle_{ext}HGB}=360\implies y=122$

So $x+y=194$ .

8 0

4 years ago

Julie, the soccer team's Captain, wants to borrow her parents car to drive to the tournament. her parents tell her that she has

Leona [35]

Given:
<span>26 miles per gallon
Distance to the tournament=d
Total distance: =d•2=2d
Amount of gas Julie needs to buy: g

g = 2d miles / 26 miles per gallon

Let us assume that d = 50

g = 2(50) miles / 26 miles per gallon
g = 100 miles / 26 miles per gallon
g = 3.85 gallon

</span>

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3 years ago

Read 2 more answers

I dont know the answers to this and its SUPER important I get it right.​

I dont know the answers to this and its SUPER important I get it right.