An irrational number is a number than can't be put into a fraction. and is usually REALLY long number with decimal and does not have repeating numbers
A. 3/4 = 0.75 It is a fraction 
B. √225 = 15 It is a whole number
C. √17 = 4.1231056245617.... It is an irrational number
D. 175.2845 It is not irrational and can be put into a fraction (

 
        
             
        
        
        
Answer:
Opens upward
Step-by-step explanation:
Since the coefficient of 
 is a positive number +8, then it is a parabola that opens upward
 
        
                    
             
        
        
        
Answer:
84in
Step-by-step explanation:
84in
 
        
             
        
        
        
Answer:
y= 1/2x+1
Step-by-step explanation:
 
        
             
        
        
        
The angle of elevation is 26.565 (3dp) 
let h be the end height of the ramp above
the ground , l be the length of the ramp and
the angle of elevation is (30) 
i'm not sure, sorry