Answer:
Step-by-step explanation:
Longer side =18
side opposite to 30=18/2=9
third side=√(18²-9²)=9√3
 
        
             
        
        
        
According to the order of operations, multiplication and division are performed before addition and subtraction.
... 8 - 12 ÷ 2 + 3
... = 8 - 6 + 3 . . . . . . 12÷2 = 6
... = 2 + 3 . . . . . . . . . 8-6 = 2
... = 5
 
        
                    
             
        
        
        
Answer:  The correct answer is:  " 3 " . 
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Step-by-step explanation:
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The problem given is:
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Evaluate:  log 2 base 8 .
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Rewrite as:  "  " ;
  " ;  
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Take note of the following definition of a logarithm:
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 "    " ;  ↔  "
 " ;  ↔  "  "  ;
  "  ; 
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in which:   refers to the "base" ;
  refers to the "base" ; 
                 refers to the "argument" ;
  refers to the "argument" ; 
                 refers to the "exponent" ;
  refers to the "exponent" ; 
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As such: 
        "  "
 " 
       ⇔ "  " ; Solve for "x" ;
 " ; Solve for "x" ;  
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  Note:  
   2⁰ = 1 ; 
   2¹ = 2 ; 
   2² = 2 * 2 = 4 ; 
   2³ = 2 * 2 * 2 = 8 .
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  → "  " ;
 " ; 
  → "  " ;  since: "
 " ;  since: "  " ;
 " ; 
  → as such:   " x = 3  " ; 
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Thus: 
 "log 2 base 8 " ; 
           =  .
  .
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Hope this helps!
 Best wishes to you!
 
        
             
        
        
        
divide 63 by9
63 / 9 = 7
each piece is 7 meters long