Please help me with this algebra PLEEASSEee!!!
       
      
                
     
    
    
    
    
    1 answer:
            
              
              
                
                
11. 5x^2-30=0 
+30 to both sides 
5x^2=30
÷5 both sides 
x^2=6
 square root both sides 
x= +square root 6 ,- square root 6
12. 4x^2+10=26
-10 both sides 
4x^2=16
÷4 both sides 
x^2=4
square root both sides 
x=+2,-2
13. a=72yrd^2
l=2w
w=?
a=l×w
72=2w×w
72=2w^2
÷2 both sides 
36=w^2
square root both sides 
w=+6,-6 
a measurement can't be - so w=6 
Plug into l=2w 
l=2×6
l=12
w=6
                                
             
         	    You might be interested in
    
        
        
Answer:
5a-7=24
5a=24+7
a=31/5
Step-by-step explanation:
 
        
             
        
        
        
Answer:
add the denominator n numerator...n is this middle school work or primary work
 
        
             
        
        
        
The parent function of any a quadratic function is 
 
 
        
        
        
Answer:

I hope I helped you^_^
 
        
             
        
        
        
Answer:
x>1
Step-by-step explanation:
x + 18 > 19
Subtract 18 from each side
x + 18-18 > 19-18
x>1