6y - 3x > 9
-3x > -6y + 9
x < 2y - 3....yes, it is shaded below the line
        
             
        
        
        
Answer:
Is an acute triangle
Step-by-step explanation:
we know that
the formula to calculate the distance between two points is equal to

we have
G(7,3), H(9, 0), I(5, -1) 
step 1
Find the distance GH
substitute in the formula



step 2
Find the distance IH
substitute in the formula



step 3
Find the distance GI
substitute in the formula



step 4
Verify what type of triangle is the polygon
we know that
If applying the Pythagoras Theorem
 ----> is a right triangle
 ----> is a right triangle
 ----> is an obtuse triangle
 ----> is an obtuse triangle
 ----> is an acute triangle
 ----> is an acute triangle
where
 c is the greater side
we have



substitute


therefore

Is an acute triangle
 
        
                    
             
        
        
        
Stephen's heart beats 68 times in one minute 
Step-by-step explanation:
60 sec (one min) divided by 15 sec ( the unit of time we use to track the 17 heartbeats) = 4 
4 times 17 =68