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Vikentia [17]
4 years ago
10

A huge Ping-Pong tournament is held in Beijing with 65,536 participants at the start of the tournament. Each round of

Mathematics
1 answer:
lisabon 2012 [21]4 years ago
3 0

Answer:

After 16 rounds the champion of Ping-Pong player can be determined.

Step-by-step explanation:

This is an example of geometric progression,

First term = 65,536

\texttt{Common ratio = }\frac{1}{2}

Now we need to find which term is 1 in this GP.

N th term of GP is given by

             t_n=ar^{n-1}

Substituting

               1=65536\times \left ( \frac{1}{2}\right )^{n-1}\\\\\frac{1}{65536}=\left ( \frac{1}{2}\right )^{n-1}\\\\2^{n-1}=65536\\\\2^{n-1}=2^{16}\\\\n=17

Seventeenth term of this GP is 1.

That is after 16 rounds the champion of Ping-Pong player can be determined.

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lakkis [162]

Answer:

19. 11

21. 119

Step-by-step explanation:

19.

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= (-5)² - [4(-2)² + 3] + 5

= (-5)² - [4(4) + 3] + 5

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= 6 + 5

= 11

21.

5 - 8[6 - (3 ∙ 2 - 8 + 2|4 ÷ -2 + (-3)| - 4) - 7 · 2] - 3² · (-2) =

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= 5 - 8[6 - (3 ∙ 2 - 8 + 2|-5| - 4) - 7 · 2] - 3² · (-2)

= 5 - 8[6 - (3 ∙ 2 - 8 + 2(5) - 4) - 7 · 2] - 3² · (-2)

= 5 - 8[6 - (6 - 8 + 10 - 4) - 7 · 2] - 3² · (-2)

= 5 - 8[6 - (-2 + 10 - 4) - 7 · 2] - 3² · (-2)

= 5 - 8[6 - (8 - 4) - 7 · 2] - 3² · (-2)

= 5 - 8[6 - 4 - 7 · 2] - 3² · (-2)

= 5 - 8[6 - 4 - 14] - 3² · (-2)

= 5 - 8[2 - 14] - 3² · (-2)

= 5 - 8[-12] - 3² · (-2)

= 5 - (-96) - 9 · (-2)

= 5 + 96 + 18

= 101 + 18

= 119

3 0
3 years ago
Write a Linear equation that goes through the points (1,2) and (3,8). Can u Graph pls
Aloiza [94]

Answer:

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Step-by-step explanation:

3 0
3 years ago
I need help with this problem
Mekhanik [1.2K]

Answer:

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5 0
3 years ago
Logan is a land surveyor. He wants to determine d, the distance across a lake that cannot be directly measured. He draws this di
Mice21 [21]

Answer:

The first option     (5.7km)

Step-by-step explanation:

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(Based on the Pathagoras Theorem)

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7 0
3 years ago
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Determine which point is the solution to the given system.
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Answer:

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Step-by-step explanation:

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