Domain is the numbers yo can use
we has a sqrt and a ln
we cant have any neagtive ln's or sqrts
x cannot be negative
it cannot be 0 either
domain is all numbers bigger than 0
deritivive
apply chain rule
dy/dx(f(g(x))=f'(g(x))g'(x)
and also
dy/dx (lnx)=1/x
and 
dy/dx(f(x)g(x))=f'(x)g(x)+g'(x)f(x)
and from experience
dy/dx(sqrtx)=1/(2√x)
so
dy/dx(ln(2xsqrt(2+x)))=
(1/(2xsqrt(2+x))(2)(sqrt(2+x)+(x/(2sqrt(2+x))=
(3x+4)/(2x(x+2))
domain is all real numbers greater than 0
derivitive is 
 
 
        
        
        
Answer:
x  = 18
y = 15
Step-by-step explanation:
Remark
Step One
The main step is to realize that if the lower left hand angle is 90 degrees, then the upper left hand angle is also 90. That is because the interior angles of parallel lines are supplementary. If one of the angle is 90 degrees, so is the other. 
<em><u>Conclusion from the Remark</u></em>
5x = 90
x = 90/5
x = 18 degrees
Step Two
Find y
y is just a bit harder to find . The safest way is to add all four interior angles together. For any trap*zoid (you cannot spell this word properly. The editor has a fit), the interior angles add up to 360 degrees.
So just add the 4 angles together and equate to 360
5(y + 11) + 4y  - 10 + 90 + 90 = 360     Combine like terms
5(y + 11) + 4y -  10 + 180 = 360            Combine again
5(y + 11) + 4y + 170 = 360                   Subtract 170 from both sides
5(y + 11) + 4y = 360 - 170                     Combine like terms
5(y + 11) + 4y = 190                             Remove the brackets
5y + 55 + y4 = 190                             Combine like terms
9y + 55 = 190                                     Subtract 55 from both sides.
9y = 190 - 55
9y = 135                                              Divide by 9
y = 135 / 9
y = 15
 
 
        
             
        
        
        
Answer:
13,000
Step-by-step explanation: 10% of 31,000= 3,100 x 6= 18,600
31,000-18,600=13,000
 
        
             
        
        
        
Im pretty sure the answer is 1.675
        
                    
             
        
        
        
Answer:
6 days
Step-by-step explanation:
The can relatively small... I would just say common sense. 
hopefully this helps luv <3