Answer: this is the answer
( {x}^{3} ) {}^{ - 5}  =  {x}^{ - 15} 
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
Considering the Law of Cosines:




 
        
             
        
        
        
Answer:
First answer.
Step-by-step explanation:
This is called the Arc length, here is the formula: 
Arc length = (angle/360)*(2Pi*radius)
So,
(45/360)*(2*3.14*4)
= 3.14
SO Pi !!!!!
 
        
             
        
        
        
Answer:
61
Step-by-step explanation:
- 13 - 1 = 12
- 12 ÷ 2 = 6
- Put 6 and 1 together: 61
Therefore, the number is 61
Let's check:
- 6 × 2 = 12
- 12 + 1 = 13
The sum of the two digits is 13, and we got that, so we are correct. The number is 61.