First find midpoint of AB and lastly find the length of midpoint and C
 
        
        
        
Answer:
3000 words
Step-by-step explanation:
450 words in 3 minutes is 150 words in 1 minute. 20 minutes = 1 times 20.           
1 minute = 150 words so 150 words times 20 minutes = 3000 words.
 
        
             
        
        
        
Answer:
![\sqrt[4]{81}  =  {( {3}^{4}) }^{ \frac{1}{4} }](https://tex.z-dn.net/?f=%20%5Csqrt%5B4%5D%7B81%7D%20%20%3D%20%20%7B%28%20%7B3%7D%5E%7B4%7D%29%20%7D%5E%7B%20%5Cfrac%7B1%7D%7B4%7D%20%7D%20)
Step-by-step explanation:
it's obvious that 3·3·3·3=81
or you can do the prime factorization of 81
 
        
             
        
        
        
Answer:

Step-by-step explanation:


<u>Using the distance formula</u>:






