Answer: 13 is c im pretty sure and 14 is a im think hope fully it helps
Step-by-step explanation:
 
        
             
        
        
        
Answer: 36
Step-by-step explanation:
By the triangle midsegment theorem, CE=16, CD=10, and ED=10.
So, the perimeter of triangle CDE is 10+10+16=<u>36</u>
 
        
             
        
        
        
Answer:
ok is this supposed to be a quesion to ask or a fact?
Step-by-step explanation:
 
        
             
        
        
        
Answer:
<u>A. Mean =  402.5</u>
<u>B. Variance = 77,556.25</u>
<u>C. Standard Deviation =  278.49</u>
Step-by-step explanation:
Let's calculate the mean, variance and standard deviation of the set of numbers given:
A. Mean = (45 + 340 + 400 + 825)/4 = 1,610/4 =<u> 402.5</u>
B. Variance [(45 - 402.5)² + (340 - 402.5)² + (400 - 402.5)² + (825 - 402.5)²]/4 =  [(127,806.25 + 3,906.25 +6.25 + 178,506.25/4 =<u> </u><u>77,556.25</u>
C. Standard Deviation = √Variance = √77,556.25 =<u> 278.49</u>
 
        
             
        
        
        
Answer:
The Answer is (A)
Step-by-step explanation:
A sample of each symbol (point, line, or area), and a short description of what the symbol means