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Artyom0805 [142]
3 years ago
13

Help plz I GIVE FIRST PERSON BRAINLIEST

Mathematics
1 answer:
earnstyle [38]3 years ago
4 0

Answer:

12

Step-by-step explanation:

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If 32 teams participate in a standard single elimination tournament, how many games must be played to decide a champion?
SCORPION-xisa [38]
<h3>Answer: 31 games</h3>

======================================================

Explanation:

  • 32/2 = 16 games will happen in round 1. Afterward, 16 teams are left.
  • 16/2 = 8 games will happen in round 2. Afterward, 8 teams are left.
  • 8/2 = 4 games happen in round 3.
  • 4/2 = 2 games in round 4.
  • 2/2 = 1 game as the final championship.

Count the number of times you divide by two and we have five occurrences of this. So there five rounds overall.

To get the total number of games played, we add up the quotients

16+8+4+2+1 = 31

----------------

Or as a shortcut we can simply subtract off 1 since 1+2+4+...+2^n = 2^(n+1)-1

We can write that rule as

\displaystyle \sum_{k=1}^{n}2^k = 2^{n+1}-1

which is equivalent to

\displaystyle \sum_{k=1}^{n}2^{k-1} = 2^n-1

3 0
4 years ago
Simplify 43-2[6+(3+2)]
juin [17]

Answer:

21

Step-by-step explanation:

43 -2 [6 + (3 + 2)]

43 - 2[ 6 + 5 ]

43 - 2 ( 11)

43 - 22

21

3 0
3 years ago
Evaluate the function below given f(2) f(x)=3x-10
borishaifa [10]

Answer:

f(2) = -4

Step-by-step explanation:

for f(2), plug it into f(x)=3x-10

3(2)-10

6-10

-4

f(2) = -4

3 0
3 years ago
Margo bought a tree that grows 2.5cm each day.The tree was 5cm tall when she got it.It is now 65cm tall.How long has Margo owned
gavmur [86]
24 days. it has grown 60 cm, because when she got it, it was already 5 cm. So, it grows 2.5 cm each day, so divide 65 cm by 2.5 and you get the answer, 24 days.
7 0
4 years ago
I’ll give BRAINLIEST to best answer, please answer fast.
Basile [38]

2 waffles =3$

2x4=8 waffles (How many waffles Sage wants)

3 + 3 + 3 + 3= 12  (or 3x4)

(2) (4) (6) (8)

<u>12$ at I Scream</u>

4 waffles= 4$

4 waffles x2=8$

<u>8$ at Scoopz</u>

12-8= 4

<h3>Sage would save 4 dollars if she got 8 waffles at Scoopz.</h3>

3 0
3 years ago
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