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3 years ago

Acellus

Mathematics

1 answer:

kkurt [141]3 years ago

8 0

Answer:

do you have any other info

Step-by-step explanation:

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Evaluate the surface integral. s xy ds s is the triangular region with vertices (1, 0, 0), (0, 8, 0), (0, 0, 8)

zmey [24]

Parameterize $S$ by

$\vec s(u,v)=(1-u)v\,\vec\imath+8uv\,\vec\jmath+8(1-v)\,\vec k$

with $0\le u\le1$ and $0\le v\le1$ .

Then the surface element is

$\mathrm dS=\|\vec s_u\times\vec s_v\|\,\mathrm du\,\mathrm dv=8\sqrt{66}\,v\,\mathrm du\,\mathrm dv$

and the surface integral is

$\displaystyle\iint_Sxy\,\mathrm dS=8\sqrt{66}\int_0^1\int_0^18(1-u)uv^3\,\mathrm du\,\mathrm dv=\boxed{8\sqrt{\dfrac{22}3}}$

4 0

3 years ago

In a grocery store, a bag of sweets marked for $5 was sold at a discount of 10%. What was the selling price for the bag of sweet

kumpel [21]

The correct answer is 0.5.

4 0

3 years ago

A(x)=2(x+7.4 and b(x) = 3/24<br> -7

quester [9]

Answer:

1. x = -7.4

2. -55/8

I hope this helps!!

8 0

3 years ago

special deck of cards has 20 cards. Nine are green, seven are blue, and four are red. When a card is picked, the color of it is

Sever21 [200]

Answer:

Step-by-step explanation:

Given that special deck of cards has 20 cards. Nine are green, seven are blue, and four are red. When a card is picked, the color of it is recorded. An experiment consists of first picking a card and then tossing a coin

A) Sample space will have Green, Head, or Green, Tail .... Red, head, red, tail

No of elements in sample space = no of colours x no of outcomes in coin toss

= 4x2 = 8

B) A= getting (RT)

P(A) = Prob of getting red card and tail on coin

= P (R) *P(T)

= $\frac{4}{20} *\frac{1}{2} \\=\frac{1}{10}$

C) B be the event that a green or blue is picked, followed by landing a tail on the coin toss

B = getting green card and tail

Getting green card tail is mutally exclusive with red card and tail as there is no common element between green and blue.

D) C= red or green card is picked followed by tail.

Here A and C have a common element as getting red and tail. So not mutually exclusive

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3 years ago

if one tulip one daisy and two mums cost $4.20 and 2 daisies one tulip and one mum costs $3.80 and two tulips and two mums cost

Flura [38]

Answer:

$5.60

Step-by-step explanation:

7 0

3 years ago