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3 years ago

I don't understand the math problem, this is for a first grader

Mathematics

1 answer:

icang [17]3 years ago

5 0

Looks like it wants it in groups maybe?

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The numbers of teams remaining in each round of a single-elimination tennis tournament represent a geometric sequence where an i

Anit [1.1K]

Answer:

$a_n = 128\bigg(\dfrac{1}{2}\bigg)^{n-1}$

Step-by-step explanation:

We are given the following in the question:

The numbers of teams remaining in each round follows a geometric sequence.

Let a be the first the of the geometric sequence and r be the common ration.

The $n^{th}$ term of geometric sequence is given by:

$a_n = ar^{n-1}$

$a_4 = 16 = ar^3\\a_6 = 4 = ar^5$

Dividing the two equations, we get,

$\dfrac{16}{4} = \dfrac{ar^3}{ar^5}\\\\4}=\dfrac{1}{r^2}\\\\\Rightarrow r^2 = \dfrac{1}{4}\\\Rightarrow r = \dfrac{1}{2}$

the first term can be calculated as:

$16=a(\dfrac{1}{2})^3\\\\a = 16\times 6\\a = 128$

Thus, the required geometric sequence is

$a_n = 128\bigg(\dfrac{1}{2}\bigg)^{n-1}$

4 0

3 years ago

7 is less than or equal to 3 - 2 p less than 11

zubka84 [21]

I'm guessing it's equal

4 0

3 years ago

Write an expression for F increased by 3

shutvik [7]

Answer:

The answer is F+3

Step-by-step explanation:

3 0

3 years ago

I am not sure about this problem?

uranmaximum [27]

The answer for your question is 4x^2-15x+6+ 2/3x+5

3 0

3 years ago

Pleasehelp me algebra 2

leva [86]

The average rate of change is 12.

27 - 3 = 24.

1 - (-1) = 2 [it’s essentially 1 + 1].

24/2 = 12.

4 0

4 years ago