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kenny6666 [7]
2 years ago
9

F = xi+yj+2zk and σ is the portion of the cone z=x2+y2−−−−−−√ between the planes z=4 and z=5 oriented with normal vectors pointi

ng upwards. Find the flux of the flow field F across σ
Mathematics
1 answer:
trapecia [35]2 years ago
4 0
There is no question for me to answer
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Casey orders 3 pizzas and 2 orders of breadsticks for a total of 30.00. Rachel orders 2 pizzas and 3 orders of breadsticks for 2
barxatty [35]

Answer:

8

Step-by-step explanation:

x=pizza

y= breadsticks

3x+2y=30

2x+3y=25

first we myltiply the top equation with 3 and then w emultiply the lower equation with -2 so it is

9x+6y=90

-4x-6y= -50

now we can add them together and the y contracts

5x=40

now we divide it by 5

x=8

So pizza costs 8

3 0
2 years ago
What is the value of 3-(-2)?
Akimi4 [234]

Answer:

5

Step-by-step explanation:

The double negatives turn into a positive which makes the problem 3+2 which equals 5.

3 0
3 years ago
What is y=2/5x+800 graphed
marusya05 [52]

Answer:

The graph is a line with a gradient of 2/5, and which runs through the coordinate (0, 800) and (0, -2000).

Step-by-step explanation:

You can graph any line by drawing a line through two points that are on that line, and thus are part of the magical equation, which accounts for the description of any point on that line.

In fact that is exactly how a computer draws a graph. It plots a dot, wich coordinates are calculated by substituting a value in the formula. Next it does that for another coordinate, very close to the first one. Now you have two dots next to each other... and so on.

Because computers can calculate extremely fast, within an instant, the result is a plotted chart, which in this case looks like the graph of a line.

It's graph is a line with a gradient of 2/5, which goes through the y-axis at the coordinate (0, 800).

You could find another pont on this line, by randomly choosing a simple number for x and substituting that value in the equation. For an example, you could substitute x =2 in y=2/5x+800.

y = 2/5x+800

x = 2

y = 2/5*(2)+800

y = 10/5+800

y = 2+800

y = 802

So you now have another point (5, 802)

In general it is best to search for the value of x, when you substitute y = 0.

y = 2/5x + 800

y = 0

0 = 2/5x + 800

2/5x = ( -800 )

x = 5/2 * ( -800 )

x = -4000 / 2

x = -2000

So you now have another point ( which goes through the x-axis ) at the coordinate (0, -2000).

Now you can draw the graph of y=2/5x+800.

8 0
3 years ago
Explain why when dividing fractions with the same denominator, you can find the quotient by dividing the numerators. Support you
astraxan [27]

Answer:

Why not

Step-by-step explanation:

3 0
2 years ago
. 4(x 2 4)<br> A 4x 2 18 2 2<br> B 2x 2 16 1 2x<br> C 16 1 4x<br> D 8x 2 16 2 4x
il63 [147K]

Answer:

9.6x

Step-by-step explanation:

SYBOLAB

6 0
3 years ago
Read 2 more answers
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