D<span>here, we go by the same exact principle, but the terms are not a,b,c.
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Answer:
A graph shows zeros to be ±3. Factoring those out leaves the quadratic
  (x-2)² +1
which has complex roots 2±i.
The function has roots -3, 3, 2-i, 2+i.
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
Total number of tablets needs to discharge = 240 tables
Step-by-step explanation:
Given:
Number of days tablet need = 30 days
Number of times per days need = 4 times
Number of tablet per time = 2 tablet
Find:
Total number of tablets needs to discharge = ?
Computation:
⇒ Total number of tablets needs to discharge = Number of days tablet need × Number of times per days need × Number of tablet per time
⇒ Total number of tablets needs to discharge = 30 × 4 × 2
⇒ Total number of tablets needs to discharge = 240 tables
 
        
             
        
        
        
Answer:
 All values are identical.
Step-by-step explanation:
We are given the following in the question:
If the standard deviation of a set of data is zero.
Then, all the values in data are identical.
This can be shown as:
Let all the terms in data be x.
Formula:
 
  
where  are data points,
 are data points,  is the mean and n is the number of observations.
 is the mean and n is the number of observations.  
 
 
Sum of squares of differences = 


Thus, the correct answer is
 All values are identical.
 
        
             
        
        
        
Answer:
6 in.
Step-by-step explanation:
Hello there!
Work the triangle formula backward:
15 x 2=30
30/5=6 in
:)