The proper equation for midpoints is inside the following photo
 
        
             
        
        
        
Answer:
158.1
Step-by-step explanation:
Distance is the square root of (x1-x2)^2+(y1-y2)^2
square root of (-4-146)^2+(2-52)^2
square root of 150^2+50^2
square root of 22500+2500
square root of 25000
50sqrt10
Rounding is 158.1
 
        
             
        
        
        
The answer is:  " 2 :5 " ;  or, write as:  " 2/5 " . 
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The ratio of 'girls' to 'all students' is:  "2: 5 " ;  or, write as:  " 2/5 ".
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Explanation:
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Given:  The ratio of boys to girls is:  " 3:2 " .  
Problem:  Find the ratio of "girls" to "all students:
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Note:    This ratio of "boys to girls", which is " 3 : 2 " ; 
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    →  can be expressed as " 3x: 2x"  ;  
in which the total number of students is:  " 3x + 2x " = 5x " .
   → The total number of students is represented as:  " 5x " .  
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→  The ratio of "girls to boys" is:  "2x : 3x" .
→  {that is;  the "inverse" of the ratio of "boys to girls"} ;  
→  {that is;  the "inverse" of  " 3x: 2x" } ;  →  which is:  " 2x : 3x " .
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The ratio of "girls" to "all students" is:  "2x : 5x "  ;  or " 2x/5x " ; 
                                             → Both "x" values cancel ;  {since: " x/x = 1 "} ; 
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       →  and we have the answer:  " 2 :5 " ;  or, write as:  " 2/5 " . 
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The ratio of 'girls' to 'all students' is:  " 2 :5 " ;  or, write as:  " 2/5 ".
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Answer:
negative
Step-by-step explanation:
calculating the z score by subtracting the mean and dividing by the standard deviation
(55-70)/10= -1.5
It's negative
 
        
             
        
        
        
It should take 6 weeks until the warehouse has less than 100 boxes remaining