11. 4 + 10 = 14 
25 - 14 = 11
        
                    
             
        
        
        
Answer:
What is the arc length and sector area for the following circle. Round your answer to 4 decimal places. *
Step-by-step explanation:
 
        
             
        
        
        
The correct answer is A.
You have direct variation if x and y are modeled by the equation

In this case, m is the constant of proportionality. So, if the constant has to be 2, the equation becomes

A side note: Actually, option C has a constant of proportionality of two as well, except the roles of x and y are interchanged. I chose option A because usually you want the y = mx form, but the names of the variables are obviously meaningless.
 
        
                    
             
        
        
        
Answer:
0.5
Step-by-step explanation:
Solution:-
- The sample mean before treatment, μ1 = 46  
- The sample mean  after treatment, μ2 = 48
- The sample standard deviation σ = √16 = 4
- For the independent samples T-test, Cohen's d is determined by calculating the mean difference between your two groups, and then dividing the result by the pooled standard deviation.
                            Cohen's d = 
- Where, the pooled standard deviation (sd_pooled) is calculated using the formula:
                           
- Assuming that population standard deviation and sample standard deviation are same: 
                           SD_1 = SD_2 =  σ = 4
- Then,
                            
- The cohen's d can now be evaliated:
                           Cohen's d = 