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77julia77 [94]
3 years ago
11

At the first meeting of the Tennis Club, the 7 members decided to have a tournament in which every player will play a match agai

nst every other player. How many matches will there be in the tournament?
Mathematics
1 answer:
mariarad [96]3 years ago
5 0

Answer:

21 matches

Step-by-step explanation:

This is a combination problem where we have to select two member out of 7 members

 

So we want calculation of  7C2

 

   7C2 = 7!/[(2!)(7-2)!]

   (7*6*5*4*3*2*1)/[(2*1) *(5*4*3*2*1]

   (7*6)/2    ~  Note everything that easily cancels here!

   42/2

   21 matches

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Will give brainly .Which statements are true regarding undefinable terms in geometry? Check all that apply.
babymother [125]

The true statements about terms in geometry that are undefinable are;

  • A point has no length or width
  • A point indicates a location on the coordinate plane
  • A line consists of an infinite set of points.
  • A plane consists of an infinite set of points.

<h3>How can the true statements be found?</h3>

Three undefinable terms in geometry are;

1) Point

2) Line

3) Plane

The above terms do not have a formal definition but they can be described based on their properties.

The other geometric terms are defined based on the above undefinable terms.

A point can be described as a location in space that is dimensionless and can be specified on the coordinate plane as an ordered pairs (x, y).

True statements about a point are therefore;

  • A point has no length or width
  • A point indicates a location on the coordinate plane

A line is infinitely long, that has no beginning or end. It has one dimension, with no thickness or height.

Given that a point is dimensionless, a line can be considered a set of points.

A true statement is therefore;

  • A line consists of an infinite set of points.

A plane is a two dimensional geometric figure that have infinite length and width.

An infinite set of lines that forms a two dimensional figure can be used to describe a plane.

The true statement with regards to a plane is therefore;

  • A plane consists of an infinite set of points.

Learn more about undefinable terms in geometry here:

brainly.com/question/1706041

#SPJ1

7 0
2 years ago
A line with a slope of 5 passes through the point (0,4). What is its equation in
mezya [45]

The equation of a line is written as y = mx + b, where m is the slope and b is the y intercept.

You are given the slope: 5

The y-intercept is the y value when x is 0, this is also the point given to you (0,4), so the y-intercept (b) is 4.

The equation is y = 5x +4

5 0
3 years ago
Read 2 more answers
Part A:
shusha [124]

Part A:

Six Tents Holds 42 People

Nine Tents Holds 63 People

10 Tents Holds 70 People

Part B:

Number of tents|||Number of people

1                          |||7

6                         |||42

9                         |||63

10                        |||70

Part C:

Tents=x

1x=7 people

8 0
3 years ago
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I need help on dividing 415 by 13
olga55 [171]
Answer is easy
415 / 13 =
31.92
4 0
3 years ago
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Find the distance between the points (-3, 11) and (5,5).<br> O 10<br> 2/10<br> o 2.17
german

Answer: d = 10

Step-by-step explanation:

Step-by-step explanation:

The formula for calculating distance between two points is given by :

d = \sqrt{(x_{2}-x_{1})^{2}+(y_{2}-y_{1})^{2}}

x_{1} = -3

x_{2} = 5

y_{1} = 11

y_{2} = 5

substituting the values , we have

d = \sqrt{(5-(-3))^{2}+(5-11)^{2}}

d = \sqrt{(5+3)^{2}+(-6)^{2}}

d = \sqrt{(8)^{2}+(-6)^{2}}

d = \sqrt{64+36}

d = \sqrt{100}

d = 10

4 0
3 years ago
Read 2 more answers
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