Answer:
8
Step-by-step explanation:
The formula to calculate the sum of interior angles of polygon is (n - 2)180
Where n represents number of sides
(n-2)180 = 1080 ------ Divide through by 180
(n-2)180/180 = 1080/180
n-2 = 6
n = 6+2
n = 8
 
        
             
        
        
        
Answer:
0.6563 or 65.63% of brook trout caught will be between 12 and 18 inches
Step-by-step explanation:
Mean trout length (μ) = 14 inches
Standard deviation (σ) = 3 inches
The z-score for any given trout length 'X' is defined as:  
 e interval
  e interval
For a length of X =12 inches:

According to a z-score table, a score of -0.6667 is equivalent to the 25.25th percentile of the distribution.
For a length of X =18 inches:

According to a z-score table, a score of 1.333 is equivalent to the 90.88th percentile of the distribution.
The proportion of trout caught between 12 and 18 inches, assuming a normal distribution, is the interval between the equivalent percentile of each length:

 
        
             
        
        
        
Q is congruent to P because they’re both got the same x and y number the x is 5 and -5 and for y is 3 and -3.
        
                    
             
        
        
        
19/40 as a fraction and decimal it is 0.475
        
                    
             
        
        
        
Answer:
27.5
Step-by-step explanation:
pythagorean theorem. a^2+b^2=c^2. 
so 12^2+b^2=30^2
meaning 144+b^2=900
900-144=756
square root 756
b=27.5