Let x=height. then base is x+4. plug what we know into the formula for the area of a triangle
A=½bh
16=½*(x+4)*(x)
32=x²+4x
x²+4x-32=0
(x+8)(x-4)=0
so x can be-8 our 4. when we plug-8 in for x we get a negative height. since a triangle cannot have a negative side length we discard-8 and try 4. height=4 and base=8
        
             
        
        
        
ANSWER

EXPLANATION
The given function is 

Let 

Interchange x and y to get:

Solve for y,

Take square root of both sides to get,

This is the same as:

Therefore the inverse is 

 
        
             
        
        
        
Answer:
x  =  500 yd
y  =  250 yd
A(max) = 125000 yd²
Step-by-step explanation: 
Let´s call x the side parallel to the stream ( only one side to be fenced )
y the other side of the rectangular area
Then the perimeter of the  rectangle  is  p  =  2*x  + 2* y  ( but only 1 x will be fenced) 
p  =  x  +  2*y
1000  =  x   +  2 * y         ⇒    y  =  (1000 - x )/ 2
And   A(r)  =  x * y
Are as fuction of x
A(x)  =  x  *  (  1000  -  x ) / 2
A(x)  =   1000*x / 2 -  x² / 2 
A´(x)  =  500  -  2*x/2
A´(x)  =  0              500   -  x   =  0
x  =  500 yd
To find out if this value will bring function A to a maximum value we get the second derivative
C´´(x)  =  -1         C´´(x) < 0  then efectevly we got a maximum at  x  = 500
The side  y  = ( 1000  -  x ) / 2
y  =  500/ 2
y  =  250 yd
A(max)  =  250 * 500
A(max) = 125000 yd²
 
        
             
        
        
        
If the number of terms is one then it is called a mono-nomial
if number of terms is two then it is called binomial.
if the number of terms is three or more than three then it is called poly-nomial.
        
             
        
        
        
Answer:
13+2+9=2+13+9
[29(14)]+45=[14(29)]+45
Step-by-step explanation:
I don't know it told me it was right