Answer:
1/2
Step-by-step explanation:
Anything with an exponent of 1 is itself.
 
        
             
        
        
        
Answer:
Step-by-step explanation:
The weighted average of the student's scores is ...
   0.20×63 +0.05×97 +0.35×85 +0.40×77 = 78
The student's overall final score is 78.
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The letter grade earned is between 70 and 80, so is a C.
 
        
             
        
        
        
Answer:
= 188, x = 7.89, s = 2.23
Step-by-step explanation:
= 188, x = 7.89, s = 2.23
 
        
             
        
        
        
Answer:
28
Step-by-step explanation:
4x5=20
4x2=8
20+28=28