4) They are congruent by ASA.
5) you can set up a proportion.
original height / shadow = original of tree/ shadow of tree
18/21 = x/14
21x = 252
x = 12
SO the height of the tree is 12
Hope this helps :)
        
             
        
        
        
2.408 Rounded to the nearest hundredth's place is 2.41
 
        
                    
             
        
        
        
Answer:
 
 
Step-by-step explanation:

 
        
             
        
        
        
A suitable probability calculator can tell you the probability is about 6.7%.
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The standard deviation of the distribution of sample means is the population standard deviation (6) divided by the square root of the sample size (√144=12). Thus, your threshold is about (19.25-20)/(6/12) = -1.5 standard deviations from the mean.
 
        
             
        
        
        
We can use a factorial to solve this: 
3! = 3 * 2 * 1 = 6
So, she can wear them in a total of 6 combos.