Properties of Logs
logb(x/y) = log<span>bx</span> - log<span>by</span>.
therefore
log5 (4/7)= log5 (4)- log5 (7)
<span>Solve log 5 (4) and log 5 (7)  with the base change of the logarithm</span>
<span>log 5 4 = log 4 / log 5 </span>
 Use the calculator: 
<span>
<span>log 5 4 =0.8613531161
</span></span>
 log 5 7 = log 7 / log 5 
<span>log 5 7 =1.2090619551</span>
<span>log5 (4/7)= log5
(4)- log5 (7)=-0.347708839</span>
 
        
        
        
Answer:
what do you need help with??
 
        
             
        
        
        
Answer:
x = -
Step-by-step explanation:
- x - 1 =
x - 1 = 
add 1 to both sides:
- x =
x = 
multiply both sides by 4:
-3x = 
divide both sides by -3:
x = -
 
        
                    
             
        
        
        
#10 - 64°
#11 - 67°
#12 - 42in.
#13 - 45.5in.
#14 - i think it's 133.5 but i'm not sure.
        
             
        
        
        
Answer:
48
Step-by-step explanation:
2x6=12
12x4= 48