Answer:
5 / (x+4)      x ≠2 x≠-4
Step-by-step explanation:
5(x-2)/(x-2)(x+4)
The denominator cannot be zero so x ≠2 x≠-4
Cancel like terms in the numerator and denominator
5 / (x+4)      x ≠2 x≠-4
 
        
             
        
        
        
2 liters      1000 ml
---------- * ------------- = 500 ml (answer)
      4          1 liter
        
                    
             
        
        
        
300²+400²=500² is your answer
a²<span> + b</span>²<span> = c</span>²
        
             
        
        
        
Answer:
 
So then the minimum sample to ensure the condition given is n= 38
Step-by-step explanation:
Notation
 represent the sample mean for the sample
 represent the sample mean for the sample  
 population mean (variable of interest)
 population mean (variable of interest)
 represent the population standard deviation
 represent the population standard deviation
n represent the sample size  
ME = 4 the margin of error desired
Solution to the problem
When we create a confidence interval for the mean the margin of error is given by this formula:
 (a)
    (a)
And on this case we have that ME =4 and we are interested in order to find the value of n, if we solve n from equation (a) we got:
 (b)
   (b)
The critical value for 96% of confidence interval now can be founded using the normal distribution. The significance is  . And in excel we can use this formula to find it:"=-NORM.INV(0.02;0;1)", and we got
. And in excel we can use this formula to find it:"=-NORM.INV(0.02;0;1)", and we got  , replacing into formula (b) we got:
, replacing into formula (b) we got:
 
So then the minimum sample to ensure the condition given is n= 38
 
        
             
        
        
        
Answer:
17 - (2 / x)
Step-by-step explanation:
because it is being subtracted from 17. that goes first, and then x is being divided by 2.
Hope this helps!