Answer:
f-1(x) = (x - 1)/ 5.
Step-by-step explanation:
Lete f(x) = y = 5x + 1
Now we find an expression for x in terms of y:
y = 5x + 1
5x = y - 1
x = (y - 1) / 5
So the inverse of th function = f-1(x) = (x - 1)/ 5 (answer).
 
        
             
        
        
        
The next number in the series is 30.
<h3>What is series?</h3>
It should be noted that series simply means the operation of adding values together in a data set. 
In this case, it can be seen that the numbers are interchangeable between 30 and 31. 
In this case, since 31 was the last number, the next number will be 30.
Learn more about series on:
brainly.com/question/24295771
#SPJ1
 
        
             
        
        
        
Answer:
DOC = 70
BOC = 110
AOD = 110
Step-by-step explanation:
AOB is supplementary to BOC and AOD, which means together they equal 180. 180-70=110, so BOC and AOD are both 110.
AOB and DOC are vertical angles to each other, so are AOD and BOC. Vertical angles are always equal to each other. So since AOB is 70, so is DOC.
Hope this makes sense:)
 
        
             
        
        
        
First factor the numerator
b^2-6b+8/b-4  * b+8/b-2
u will get
(b-2)(b-4)/(b-4)*(b-2)*b+8
those will cancel out each other will left only
b+8<span />
        
             
        
        
        
Answer:
D
Step-by-step explanation:
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