Answer:
Hypothesis Testing:
Manufacturer claims that the average of time their mosquito repelllent is effective is at least 3.5hrs l.e μ ≥ 3.5hrs
Step-by-step explanation:
 
        
             
        
        
        
(3x)^3+3(3x)^2*-1 +3(3x)(-1)^2+(-1)^3 then simply that down to 27x^3-27x^3+9x-1
        
             
        
        
        
18- j 
19- c 
20- h
Hope this is right lol
        
             
        
        
        
Answer: 
Step-by-step explanation:
 By the Intersecting Secants Theorem, we know that:
 
 Having this, we can find the value of "x" by solving for "x":
 Applying Distributive property:
 
 Subtract 25 from both sides of the equation:
 
 And finally dviding both sides of the equation by 5, we get:
 
 
        
             
        
        
        
Answer:
Step-by-step explanation:
32.50 dollar