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Stels [109]
3 years ago
14

Not including four play in games, there are 64 teams in the tournament. once a team loses one game they are eliminated. how many

games would have been played if each team had to play every other team once?
Mathematics
1 answer:
Natasha_Volkova [10]3 years ago
7 0
Every time teams play with each other (assuming there are no draws) half of them win
and the others get eliminated so
64÷2=32 32 games played and 32 teams eliminated
32÷2=16 16 games played and 16 teams eliminated
16÷2=8 the same goes here
8÷2=4 and here
4÷2=2 .
2÷2=1 .

32+16+8+4+2+1=63 games
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If f(x)=1/9x-2 , what is f–1(x)?
Anna71 [15]
Lets get started :)

f(x) = \frac{1}{9}x - 2
 y   = \frac{1}{9}x - 2
This is the original equation, and now we have to find the inverse.

When finding the inverse, just flip the variables, x as y and y as x

f ⁻¹(x) 
  ↓
x = \frac{1}{9}y - 2
We have to isolate y as it is our f ⁻¹(x)

Take 2 to the other side { When you see subtraction, you do addition }
x + 2 = \frac{1}{9} y

Take 9 to the other side { When you see division, you do multiplication }
9 ( x + 2 ) = y
9x + 18 = y

f ⁻¹ (x) = 9x + 18


7 0
2 years ago
Find the slope of the line through the pair of points a (2,-3) p(2,9)
Katarina [22]
(x₁,y₁) = (2,-3)
(x₂,y₂) = (2,9)

To determine the slope using two points lie on the line, we could use the following formula
m = \dfrac{y_{2}-y_{1}}{x_{2}-x_{1}}

plug in the numbers
m = \dfrac{9-(-3)}{2-2}
m = \dfrac{9+3}{0}
m = \dfrac{12}{0}
m = undefined

The slope is undefined, the line is vertical
6 0
3 years ago
ASAP helpppp<br> I really need someone please
Pachacha [2.7K]
The answer for this is 6
7 0
2 years ago
Write the expression 7x^3-28xy^2 as the product of 3 factors
Leto [7]

Answer:

7x(x - 2y)(x + 2y).

Step-by-step explanation:

First take out the GCF which is 7x:

7x^3-28xy^2

= 7x(x^2- 4y^2)

Now factor the expression in the brackets:

= 7x(x - 2y)(x + 2y)   (answer).

3 0
2 years ago
Read 2 more answers
can someone answer these quick questions? i will mark brainliest &amp; please do not answer with a link. thanks.
Harrizon [31]

Answer:  

<h3>a. Value of x: 4</h3><h3>b. Measure of ∠LMN: 23</h3><h3>c. Measure of ∠KLM: 132</h3>

Step-by-step explanation:

a)  Two lines are parallel and KN is transversal.

So, alternate interior angles are equal.

∠LNM =∠JKL

6x + 1 = 25

Subtract 1 from both sides.

6x + 1 - 1 = 25 -1

6x = 24

Divide both sides by 6

6x/6 = 24/6

x = 4°

b) ∠LMN = 3x +11

             = 3*4 + 11

              = 12 + 11

∠LMN = 23°

c)  ∠KJL = ∠LMN    {Alternate interior angles are equal, transversal JM}

∠KJL = 23°

In ΔKLJ,

∠JKL + ∠KLM + ∠LJK = 180°

25 + ∠KLM + 23 = 180

∠KLM + 48 = 180

∠KLM = 180 - 48

∠KLM = 132°

d) In ΔJKL & ΔLMN

∠J = ∠M

∠K=∠N

∠NLM = ∠KLJ     {Vertically opposite angles.

ΔKJL & ΔLMN  are similar triangles

4 0
2 years ago
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