F(1) = 2
f(2) = 3f(1) = 3(2) = 6
f(3) = 3f(2) = 3(6) = 18 (A)
        
                    
             
        
        
        
Answer:139 cm squared
Step-by-step explanation:
First separate it:
10x3
7x7
4x15
These are the 3 rectangles that make up this shape
Then multiply
10x3=30
7x7=49
4x15=60
Then add your answers
30+49+60=139cm squared
 
        
             
        
        
        
Data:
15 16 14 15 19 17
n=6 points
sum is 96
mean is 96/6 = 16
Now we look at the absolute deviations, each of which is the absolute value of a score minus the mean, basically the distance of the score to the mean .
Scores   15 16 14 15 19 17
AbsDev    1  0  2  1    3  1
The sum of the absolute deviations is 8 and there are six of them so the 
Mean Absolute Deviation = 8/6 = 4/3
Answer: 2.    8/6
 
        
             
        
        
        
Answer:
b=135
c=45
Step-by-step explanation: