The number is x
it is negative
the square is 28 more than 3 times itself
x²=28+3x
minus (28+3x)
x²-3x-28=0
factor
(x-7)(x+4)=0
set to zero
x-7=0
x=7
this is not the answer because we were told the number was negative
x+4=0
x=-4
correct
the number is -4
test
(-4)²=28+3(-4)
16=28-12
16=16
check
the number is -4
        
                    
             
        
        
            
            
                The data set below represents the ages of 11 kids in an after-school program. 10, 11, 8, 7, 6, 10, 7, 10, 9, 9, 12 Which box plo 
                Andreas93 [3]             
         
        
Answer:
This is the answer because you need to find mean median mode range, first quertile, third quartile
Whisker plot below
Step-by-step explanation:
Mean (Average)	9
Median	9
Range	6
Mode	10, appeared 3 times
Geometric Mean	8.8206311297046
Largest	12
Smallest	6
Sum	99
Count	11
■ 1st quartile (lower quartile) = 7.5
■ 2st quartile (median) = 9
■ 3st quartile (upper quartile) = 10
 
        
             
        
        
        
Answer:
If you center the series at x=1 

Where  is the error.
 is the error. 
Step-by-step explanation:
From the information given we know that 

 (This comes from the chain rule )
   (This comes from the chain rule )
 (This comes from the chain rule and the product rule)
   (This comes from the chain rule and the product rule)
 (This comes from the chain rule and the product rule)
  (This comes from the chain rule and the product rule)
If you center the series at x=1  then 

Where  is the error.
 is the error. 
 
        
             
        
        
        
Answer:
18, 9, 27
Step-by-step explanation:
36 ÷ 2 = 18. Dividing by 2 is the same as multiplying by 50%.
36 ÷ 4 = 9. Dividing by 4 is the same as multiplying by 25%.
Since 25% • 3 = 75%, you can do 9 (from previous) • 3 to get 27.