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Pepsi [2]
3 years ago
13

there are 5 people at a party. each person must shake hands once with every other person at the party. how many handshakes does

it take to do this?
Mathematics
1 answer:
Viefleur [7K]3 years ago
3 0
Here's why: 

<span>Say the 5 people are A, B, C, D, E </span>

<span>A shakes hands w/ B C D E </span>
<span>B shakes w/ C D E </span>
<span>C with D E </span>
<span>D with E </span>

<span>That's 10</span>
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X-Y=5, 6X-6Y =?
denis-greek [22]

Answer:

<u>Yes, it is 30</u>

Step-by-step explanation:

And yes, you thought it through correctly.  6(X-Y) = 6*5

6(X-Y) = <u>30</u>

3 0
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What information must you know about a triangle in order to use the Pythagorean Theorem to find the length of a missing side?
Trava [24]

Answer: your obviously going to need to use the method a2+b2=c2

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2 years ago
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I need to find the area in the shape
dalvyx [7]

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32 yd

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2 years ago
1.3.12
kondaur [170]

Answer:

<h3><em>(12, -6)</em></h3>

Step-by-step explanation:

The formula for calculating the midpoint of two coordinates is expressed as shown;

M(X, Y) = [(x1+x2)/2,  (y1+y2)/2]

Given the midpoint of ST to be ((6, -2) and one endpoint T is (0,2), according to expression above;

X = (x1+x2)/2

Y = (y1+y2)/2

From the coordinates, X = 6, Y = -2, x1 = 0 and y1 = 2, to get x2 and y2;

X = (x1+x2)/2

6 =  (0+x2)/2

cross multiply

12 = 0+x2

x2 = 12-0

x2 = 12

For 2;

Y = (y1+y2)/2

-2 =  (2+y2)/2

cross multiply

-4 = 2+y2

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<em>Hence the other endpoint S(x2, y2) is (12, -6)</em>

<em></em>

3 0
3 years ago
I'm not sure..might anyone know ..im giving a brainlist aswell
jeka94
Answer is 5

Explanation:

To go from (-1,0) to (0,5) we have to go up 5 units and right one unit.

Rate of change means slope, which is change in y over change in x.
If our change in y is positive 5 and our change in x is positive one, we can put the rate of change as 5/1

This simplifies to 5.
3 0
2 years ago
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