The proper equation used to solve this is (let's use E for edge) E=V^1/3
The V stands for volume. So, your equation is 512^1/3
Your answer is 8, which is what you get when you work this out.

8 0

4 years ago

In one round robin chess tournament, 36 games were played. How many players entered in the tournament?

ICE Princess25 [194]

$\displaystyle
\binom{n}{2}=36\\\\
\dfrac{n!}{2!(n-2)!}=36\\
\dfrac{n(n-1)}{2}=36\\
n(n-1)=72\\
n^2-n-72=0\\
n^2-9n+8n-72=0\\
n(n-9)+8(n-9)=0\\
(n+8)(n-9)=0\\
n=-8 \vee n=9$

The number of players can't be negative, so there was 9 players.

6 0

4 years ago

Which mathematical law or property is used to rewrite the following expression?

ra1l [238]

<h3>Answer: Commutative Property Of Addition</h3>

Explanation:

This property is where we have A+B = B+A. In other words, adding two numbers can be done in any order. This can be extended to more than two values also.

So, 4+6 = 6+4 since both sides result in 10.

Overall it leads to 2+(4+6) = 2+(6+4) being a true equation as well. Both sides simplify to 12.

3 0

2 years ago

Plzzzzzzzzzzzzzzzzzzzzzzz

Ahat [919]

Answer:

Step-by-step explanation:

7x-14-2x+6 = 5x - 8

6 0

3 years ago