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Alja [10]
3 years ago
14

Olk-onm Find the value of u.

Mathematics
1 answer:
damaskus [11]3 years ago
5 0

Answer:

olk 69 -_-

Step-by-step explanation:

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Eight members of a chess club are having a tournament. In the first round every player will play a chess game against every othe
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Same as handshake problem.
Each of n persons plays against n-1 persons for a total of n(n-1)/2 games.
The division by 2 is necessary to avoid double counting the game A vs B and B vs A.

For n=8, then number of games played in the first round is 8(8-1)/2=28 games.

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3 years ago
Which of the following equations best represents the relationship between x and y?
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Answer:

The first one

Step-by-step explanation:

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3 years ago
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Use the method of cylindrical shells to find the volume V of the solid obtained by rotating the region bounded by the given curv
harkovskaia [24]

Answer:

Step-by-step explanation:

Let's give this a go here.  The volume formula for the shell method while rotating about a horizontal line is

V=2\pi \int\limits^a_b {p(y)h(y)} \, dy

where p(y) is the distance from the axis of rotation (the x-axis) to the center of the solid.  This is a positive distance and it is just y.

h(y) is the horizontal height of the function.  Our function starts at x = 0 and ends at the function itself, so h(y) = 3 + y^2.

In the shell method when rotating about a horizontal line, we need to use x = y equations, and y-intervals.  Setting up our integral then:

V=2\pi \int\limits^3_2 {y(3+y^2)} \, dy

We can simplify this a bit by distributing the y into the parenthesis:

V=2\pi \int\limits^3_2 {3y+y^3} \, dy

Integrating gives us

V=2\pi|\frac{3y^2}{2}+\frac{y^4}{4}| from 2 to 3

Using the First Fundamental Theorem of Calculus:

V=2\pi[\frac{135}{4}-\frac{40}{4}] which simplifies down to

V=\frac{95\pi}{2}

8 0
3 years ago
What is the multiplicative rate of change for the exponential function f(x) = 2(5over2 )–x?
azamat
It is 2/5 = 0.4 <span>because of the negative in the exponent.
</span><span>



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4 years ago
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Answer:

21 quizzes

Step-by-step explanation:

3 quizzes per week 9÷3=3

7 weeks = 3×7 so 21 quizzes

8 0
3 years ago
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