Step-by-step explanation:
the answer is

 
        
             
        
        
        
Answer:
No
Step-by-step explanation:
To make a triangle the angles have to add up to 180 degrees so 90+45+35=170 degrees not 180.
 
        
             
        
        
        
Answer:
the answer is 86°
Step-by-step explanation:
look at the photo 
 
        
                    
             
        
        
        
The standard deviation is  4 games 
A standard deviation (or σ) is a measure of how dispersed the facts are in relation to the mean. Low general deviation method statistics are clustered around the imply, and excessive trendy deviation indicates facts are more unfold.
Don't forget the statistics set: 2, 1, 3, 2, four. The mean and the sum of squares of deviations of the observations from the mean will be 2. 4 and 5.2, respectively. as a consequence, the same standard deviation could be √(5.2/5) = 1.01.
In data, the same old deviation is a degree of the quantity of variant or dispersion of a set of values. A low preferred deviation indicates that the values tend to be close to the mean of the set, while a high general deviation shows that the values unfold out over a much broader variety.
Given that,
mean = μ = 18
standard deviation = Σ =  6
 n = 2
μ  x =  μ = 18 games
√  x = Σ / √ = 6  
√2 = 4 games
Learn  more about standard deviation here brainly.com/question/12402189
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Answer:
60
Step-by-step explanation:
The perimeter is the measurement around an object.
So first you multiply the 20 and the 10 by 2.
20 * 2 = 40
10 * 2 = 20
Then, add then up!
40 + 20 = 60