Eighteen people are in a room. What is the minimum number of handshakes to occur to
guarantee that everyone has shaken everyone else's hand?

Answer:

its the 2 option......................

An ideal gas follows the ideal gas law stating PV = nRT. Obtain the average volume/mole by solving for V/n. Divide both sides by Avogadro’s constant Na. Multiplying n and Na gives the number of molecules N.   V/N is the average volume/molecule. 250C is the room temperature = 298.15K. The atmospheric pressure is 101325 Pa or 1 atm. Each molecule in a gas is spaced evenly and placed in a lattice. To obtain the space taken up by a cube, find the cube root of V/N to obtain the average intermolecular distance.  For small molecules such as N2 or H2, the angstroms order is 10^(-10)  m. The intermolecular distance is about 10 times the small molecules.

P V = nRT

V⁄n=RT⁄P

V⁄(nNa )=RT⁄(PNa )

V⁄N=((8.314 J/(mol.K))(298.15K))/((101325Pa)(6.02×10^23  molecules/mol))≈4.06×10^23  m^3/molecule

∛(V/N)≈3.44×10^(-9) m = 3.44 nm

The intermolecular distance is about 10 times the small molecules.

Find out more on intermolecular distance at: brainly.com/question/11184388

#SPJ4

The value of (M∪C)∩ V is { 3, 6 }

Sets are defined as a collection of well-defined elements, numbers or objects.

It is important to note that;

14.

M = { 2. 3 , 4 , 5}

C = { 4, 6 , 8 , 10}

V = { 3, 5 , 7 , 9}

M∪ C = { 2, 3, 4 , 5 , 6 , 8 , 10}

(M∪C)∩ V = { 3, 6 }

Thus, the value of (M∪C)∩ V is { 3, 6 }

Learn more about sets here:

https://brainly.com/question/2166579

#SPJ1

Answer:

x ≥ 2 3/4

Step-by-step explanation:

6 ≤ x + 3 1/4

6 - 3 1/4 ≤ x

2 3/4 ≤ x

x ≥ 2 3/4

The solution to that equation or inequality will be; x ≥ 2 3/4

If the equation or inequality contains variable terms, then there might be some values of those variables for which that equation or inequality might be true. Such values are called solution to that equation or inequality. Set of such values is called solution set to the considered equation or inequality.

WE have been given that Six is less than or equal to the sum of a number and 3 1/4;

Therefore, the inequality will be;

6 ≤ x + 3 1/4

6 - 3 1/4 ≤ x

2 3/4 ≤ x

x ≥ 2 3/4

Hence, The solution to that equation or inequality will be; x ≥ 2 3/4

Learn more about inequalities here:

https://brainly.com/question/27425770

#SPJ2

Answer:Graph A if I’m incorrect sorry

Step-by-step explanation:

Answerapples

Step-by-step explanation:

Answer:

400 meters

Step-by-step explanation:

The equation in slope-intercept form is  y = - 2x - 3.

The general equation of a straight line is

y = mx + c,

where m is the gradient or slope, and

y = c is the value where the line cuts the y-axis. This number c is called the intercept on the y-axis.

Now the given equation is,

10x + 5y = - 15

Dividing the equation by 5 we get,

2x  + y = - 3

Subtracting 2x both the side we get,

2x  + y - 2x = - 3 - 2x

⇒ y = - 3 - 2x

or, y = - 2x - 3

This is the required slope-intercept form.

where -2 is the slope and -3 is the intercept.

Thus, the equation in slope-intercept form is  y = - 2x - 3.

To learn more about equation of line :

https://brainly.com/question/14200719

#SPJ1

Answer:

.......

B is the answer ......

Answer:

Step-by-step explanation

Using the pythagoras theorem;

Given

The length of the flag pole = 8 feet = opposite side

Length of the rope = 10 feet = hypotenuse

To determine how far out on the ground he need to secure the rope from the flagpole so that the rope is tight, we need to look for the adjacent. Using the equation

hyp² = opp² + adj²

10² = 8² + adj²

adj² = 100-64

adj² = 36

adj = √36

adj = 6feet

Hence the rope should be placed 6feet out of the ground

Answer:

212

Step-by-step explanation:

106•2

Answer:

212miles

Step-by-step explanation:

3/6 =1/2 of a tank of gas

1/2+1/2=1 tank of gas

106+106=212miles

Answer:

[tex]\sqrt[5]{x^2}[/tex] and [tex](\sqrt[5]{x} )^2[/tex]

Step-by-step explanation:

They are both correct.

Answer:

A, and B

Step-by-step explanation:

The reason why is because, 2 is still on x. Therefore, while 5 represents the division it stays up in the top left corner.

Answer:

Yes that is the right answer

Answer:

no, because each output has an input of one

Step-by-step explanation:

hope this helps...

Answer:

attach photo of coordinate plane

Answer:

1. (-3,3 ½)

2. (2.9,1) or (2 9/10,1)

3. (-1,-2.5) or (-1,2 1/2)

4. (1.9,-1) or 1 9/10,-1)

Step-by-step explanation:

Since some points were not directly on a line, they must have not been a whole number, so I estimated and used logical reasoning to get the coordinates of the items. Hope this helps.

Answer:

58 degrees

Step-by-step explanation:

Answer:

75 is the answer to your question

Answer:

i believe its 75 my guy

Answer:

50y + 25x = 800

&

50x + 25y = 800

Answer:

Step-by-step explanation:

54

Answer:

2

Step-by-step explanation:

The difference between the x points is 1.

The difference between the y points is 2

The slope is rise over run so the slope of this line is 2/1 which is the same as 2.

Answer:

[tex]\$56.25[/tex]

[tex]\$9[/tex]

8

[tex]8.2\ \text{pounds}[/tex]

Step-by-step explanation:

Jonah earns $12.50 per hour

He works for 4.5 hours

Amount he earned

[tex]12.5\times 4.5=\$56.25[/tex]

Amount Jonah earned is [tex]\$56.25[/tex].

Items worth is $41.23

Amount paid is $50.23

Extra amount paid

[tex]50.23-41.23=\$9[/tex]

Jessica paid [tex]\$9[/tex] extra.

Length of cloth available is 20 m

Length of one long-sleeved blouse is 2.5 m

Number of blouses that can be made

[tex]\dfrac{20}{2.5}=8[/tex]

Number of blouses that can be made from the material is 8.

Potatoes weight is 3.2 pounds

Oranges weight is 2.3 pounds

Onions weight is 2.7 pounds

Total weight of the purchase

[tex]3.2+2.3+2.7=8.2\ \text{pounds}[/tex]

The weight of the purache is [tex]8.2\ \text{pounds}[/tex].

Answer:

Jonah - 56.25

Jessica - 9

Josie - 8

Jeremy - 8.2

Step-by-step explanation:

I got this answer correct on my test for edmentum

Answer:

If what??? can you please finish the question in the reply?

Answer:4x2

Step-by-step explanation:

Answer: -34

Step-by-step explanation:

first step: subtract 22 from both sides

+n=-12-22

n=-34

Answer:

-34

Step-by-step explanation:

Thats the correct answer . Im rlly good im Math :) I hope you get a good grade.

Answer: 39.4784

Step-by-step explanation:

The equation for area of a circle is (3.14)r^2.

Just plug in the given radius (4) into the equation and solve.

Answer:

x=24

Step-by-step explanation:

again 180-156=24

super easy remember exterior +interior angles add up to 180

Brainliest please

First angle = 105

Second angle = x

Third angle = 156 - 105

= 51

_________________________________________

Three angles of the triangle:

[tex]105[/tex]

[tex]x[/tex]

[tex]51[/tex]

___________________________________________

Angle sum of triangle = 180°

[tex]105 + 51 + x = 180[/tex]

[tex]156 + x = 180[/tex]

[tex]x = 180 - 156[/tex]

[tex]x = 24[/tex]

Answer:

c

hope its right :)

good luck!

Answer:

Growth        It's increased by 31%

Step-by-step explanation:

Hope this helps :D

Answer:

i think its

4× + 5y > = 85

Step-by-step explanation:

i hope im right or even close i tryed i should be right tho HAVE A NICE DAY!!