You would do 172 -8 and keep the i when you cancel the numbers out
        
             
        
        
        
Answer:
3m+5 equals 23 
Step-by-step explanation:
If De swam 5 miles longer than three times what his dad seam then you would make his father's distance m and plug in the numbers. 
 
        
             
        
        
        
Answer:
option (a) f(x)= 1/x+2
Step-by-step explanation:
(a) f(x) = 1/ x+2
To find the restriction for domain , we set the denominator =0  and solve for x
x+2 =0, so x=-2
When x=-2  then denominator becomes 0 that is undefined. 
So, domain is all real numbers except -2
(b) f(x)= 2x
In this function, there is no denominator or square root or log function 
so there is no restriction for x, hence domain is all real numbers
(c) f(x) = 2x-2
In this function, there is no denominator or square root or log function 
so there is no restriction for x, hence domain is all real numbers
f(x) = 1/ sqrt(x+2)
if we have square root in the denominator then we set the denominator >0 and solve for x. because square root of negative values are undefined
x+2>0, x>-2
Hence domain is all real numbers that are greater than -2
 
        
             
        
        
        
M < PQS + m < RQS = 180° because they are supplementary angles. 
Therefore:
(3x + 3) + (x + 19) = 180
3x — 3 + x + 19 = 180
4x + 16 = 180
Subtract 16 from both sides
4x — 16 = 180 — 16
4x = 164
Divide both sides by 4:
4x/4 = 164/4
x = 41
Therefore, the correct answer is x = 41