Answer:
![13*[4+(9-2)]=143](https://tex.z-dn.net/?f=13%2A%5B4%2B%289-2%29%5D%3D143)
Step-by-step explanation:
we have
![13*[4+(9-2)]](https://tex.z-dn.net/?f=13%2A%5B4%2B%289-2%29%5D)
step 1
Solve 

substitute
![13*[4+7]](https://tex.z-dn.net/?f=13%2A%5B4%2B7%5D)
step 2
Solve ![[4+7]](https://tex.z-dn.net/?f=%5B4%2B7%5D)
![[4+7]=11](https://tex.z-dn.net/?f=%5B4%2B7%5D%3D11)
substitute
![13*[11]](https://tex.z-dn.net/?f=13%2A%5B11%5D)
step 3
Solve 

therefore
![13*[4+(9-2)]=143](https://tex.z-dn.net/?f=13%2A%5B4%2B%289-2%29%5D%3D143)
Answer:
It's 0.625
Step-by-step explanation:
Natural numbers are always rational numbers,
Rational numbers can be defined as numbers that can be represented as a ratio of two integers. All natural numbers can be represented as a ratio because theycan be over one. For example, 3/1 or 19838645752641/1.
Answer:

Step-by-step explanation:




but if

then since


so

or





Answer:
The length of the line segment is 10 units.
Step-by-step explanation:
Let us call the given two points: (x₁, y₁) = (2, -3) and (x₂, y₂) = (8, 5).
The distance between two points, d = 
Here,
and

Therefore, distance, d = 



= 10 units.
Hence, the answer.