The next three are 36, 30, and 24
        
             
        
        
        
Answer:
1.5
Step-by-step explanation:

 
        
             
        
        
        
Answer:
576
Step-by-step explanation:
 
        
             
        
        
        
Answer:
A
Step-by-step explanation:
the standard form of a quadratic equation is 
ax² + bx + c = 0 : a ≠ 0
obtain (5 + x)(5 - x) = 7 in this form by expanding the factors
25 - x ² = 7 ( subtract 7 from both sides )
18 - x² = 0 ( multiply through by - 1 )
x² - 18 = 0 ← in standard form
with a = 1, b= 0 and c = - 18 → A
 
        
             
        
        
        
Answer: 42.190
Step-by-step explanation:
From the question, the population variances are not equal. The calculation has been attached in the picture below.
The answer is 42.190 to 3 decimal places.