Answer:
 a(7)=3645
Step-by-step explanation:
you have :
f(1) =a= 5
and from recursive rule: f(n) = r · f(n − 1) and f(n) = 3 · f(n − 1)
So r=3
 then
 a(n)=a*r^(n-1)
 a(7)=5*3^(7-1)
 a(7)=5*3^6=3645
<em>hope this helps</em>
<em />
 
        
             
        
        
        
Answer:
48 students.
Step-by-step explanation:
25% of total students = 12
suppose,
total students= x
so,
25% of x=12
(25/100)*x=12
25*x=(12*100)
x=1200/25
x=48 
therefore,
x= total students= 48.
 
        
             
        
        
        
1+tan^2(A) = sec^2(A) [Pythagorean Identities]
tan^2(A)cot(A) = tan(A)[tan(A)cot(A)] = tan(A)[1] = tan(A)
*see photo for complete solution*
 
        
        
        
Answer:
Yes because 1/2 is half of a circle and 3/6 is 3 of 6 of a colored circle to yes, it is equivalent.
Step-by-step explanation:
 
        
                    
             
        
        
        
I'm pretty sure its the second one