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2 years ago

Find the equation of the line that is perpendicular to y=1/2x-4 and contains the point (4,5)

Mathematics

1 answer:

boyakko [2]2 years ago

8 0

Hdhhdhzhzhzj on da guys you welcome

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goldenfox [79]

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2 years ago

A circle passes through the point (0,0.5). What it’s radius

belka [17]

Answer: The radius of this circle is 0.5

Step-by-step explanation:

We have a circle that passes through the point (0, 0.5)

We do not know the center of the circle, so we have infinite possible radius to answer this, but let's suppose that the center of the circle is in the point (0, 0)

For a circle centered in the origin, we have the equation:

x^2 + y^2 = r^2

Where r is the radius.

Here we have that x = 0 and y = 0.5

then:

0^2 + (0.5)^2 = r^2

0.5^2 = r^2

r = 0.5

The radius of this circle is 0.5

6 0

3 years ago

In a small chess tournament, 20 matches were played. Find out how many people were involved if it is known that each participant

Nina [5.8K]

Answer:

<em>5</em><em> players participated in the tournament.</em>

Step-by-step explanation:

In a small chess tournament, 20 matches were played.

Let us assume that n number of players participated in the tournament

As in each game 2 players play, so the number of ways they can play is,

$=\ ^nC_2$

As they played 2 games with every other participant in the tournament.

So the total number of games is,

$=\ 2\times ^nC_2$

But it is given to be 20, so

$\Rightarrow \ 2\times ^nC_2=20$

$\Rightarrow \ ^nC_2=10$

$\Rightarrow \dfrac{n!}{2!(n-2)!}=10$

$\Rightarrow \dfrac{n(n-1)}{2}=10$

$\Rightarrow {n(n-1)=20$

As $5\times 4=20$ , so we get n=5.

Therefore, 5 players participated in the tournament.

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2 years ago

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Is 92 fluid ounces greater than 8 pints

Morgarella [4.7K]

No 8 pints is 126 ounces

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2 years ago

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What is the volume of the prism

Oksanka [162]

Answer: i think is V=4.29m3

Step-by-step explanation:

Volume of Rectangular Prism:V = lwh

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2 years ago