Answer:b=5
Step-by-step explanation:the formular for pythagoras theory is 
C^2=a^2+b^2
13^2=12^2+b^2
169=144+b^2
Collect like terms 
169-144=b^2
b^2=25
Take the the square root of both sides 
b=square root of 25 
b=5
 
        
             
        
        
        
The answer to fill the tank is 5.16
        
             
        
        
        
Graph 1 would be the answer
        
             
        
        
        
Answer:
cosS is 33/65
Step-by-step explanation:
 
        
             
        
        
        
First keep in mind that the given value is negative and that it is 
greater than or 
equal to whatever '<em>v</em>' is.

When solving for a variable in any equation, you do something to both sides in order to keep it equal. Here, <em>v</em> is being subtracted by 1.9; therefore we can 
add 1.9 to both sides in order to isolate <em />the variable.


Despite not needing a value for the question, it is worth noting that since this is an inequality, <em>v </em>can be any value from -6.4 to ∞ in order to make it true.