Answer:
A
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
each side is 31cm
Step-by-step explanation:
91/3=31
31+31+31=93
 
        
             
        
        
        
Answer:
Depth=3.18cm
Step-by-step explanation:
V=πr2h
1LITRE=1000CM3
v=1000cm³
1000cm3=3.142×10²×Depth
Depth= 1000/3.142×100
Depth=3.18cm
 
        
             
        
        
        
Answer:
84
Step-by-step explanation:
Given a quadratic equation in standard form, ax² + bx + c = 0 : a ≠ 0
Then the discriminant is Δ = b² - 4ac
2k² = 10k - 2 ( subtract 10k - 2 from both sides )
2k² - 10k + 2 = 0 ← in standard form
with a = 2, b = - 10 and c = 2, thus
b² - 4ac = (- 10)² - (4 × 2 × 2) = 100 - 16 = 84
 
        
             
        
        
        
The second one I beileve is the answer to your question