Answer:
48
Step-by-step explanation:Its because they stated that f(1)= 8 so something times one = 8 which would of course be 8 so now u know that f=8 then u do 8(6) which is 48
 
        
             
        
        
        
Answer: 
k = - 6.6667
Step-by-step explanation:
this is quite very simple to begin. I would encourage you take other practice questions similar to help with understanding it.
let us begin.
Given that ; 
dT/dt = k ( Tm - T)       where Tm is the temp of the medium
dT/dt = 5 degrees Celsius per minute    when T = 70
 so we have that, 5 = k ( 25 - 70)
remember to convert 5 degree celsius per minute to seconds
we have that;
5*60(sec) = k ( 25 - 70)  
k = 5*60 /  ( 25 - 70)
k = - 6.6667
note K is negative because we consider it for cooling process  (temp decreasing).
cheers i hope this helps!!!
 
        
             
        
        
        
Sqrt(49)*sqrt (-1) -4 = 7i-4
        
             
        
        
        
Answer:
a = 5
Step-by-step explanation:
Hello, please consider the following.

So, a = 5.
Thank you.
 
        
             
        
        
        
1 and 3/4 is the answer!
Hope this helps! May I have brainliest? :D