Answer:
Tn=a+(n-1)d
a=a1
Tn=a1+(n+1)d
I would appreciate if my answer is chosen as a brainliest answer
 
        
                    
             
        
        
        
Answer:
Each marker will be exactly <u>103</u> miles apart.
Step-by-step explanation:
It is given that Ian wants to run 412 miles and has set up 3 markers the same distance apart.
Between the start and end of run, the 3 separate markers will divide the 412-mile distance into 4 equal segments.
So each segment = 412/4 = 103 miles
Each marker will be exactly <u>103</u> miles apart.
 
        
                    
             
        
        
        
Answer:
hi
Step-by-step explanation:
 
        
             
        
        
        
Answer:
1500 students
600 boys
Step-by-step explanation:
40% are boys, so 60% are girls.
Writing a proportion:
900 / 60% = x / 100%
x = 1500
There are 1500 students in the school, which means there are 600 boys in the school.
 
        
             
        
        
        
The answer Is C: SAS Congruence Postulate.