-1(x)= 5x+15inverse of the function
        
             
        
        
        
56 dived by 2 equals 28. 28=green ribbon. Brown ribbon is 4 times as long. 28 times 4 equals 112. The brown ribbon is 112 cm long.
 
        
             
        
        
        
Answer:
y = 4x+ 3
Step-by-step explanation:
 
        
             
        
        
        
Answer:
cos ∅ = 80/89
Step-by-step explanation:
As required from the question the picture below represent a triangle UVW . The angle W = 90°. The sides WV = 39 , VU = 89 and UW = 80. The triangle forms a right angle triangle . 
Such triangle one can establish trigonometric relationship using the SOHCAHTOA principle. 
The question requested us to find the ratio that represent the cosine of  ∠U. 
The ∠U is represented as ∅ . 
Therefore,
cos ∅ = adjacent/hypotenuse
adjacent = 80. The adjacent side is the non hypotenuse side that is next to the given angle.
hypotenuse = 89 . Hypotenuse is the longest side of a right angle triangle and it opposite the right angle.  
cos ∅ = adjacent/hypotenuse
cos ∅ = 80/89
 
 
        
             
        
        
        
Answer:
   180 ft
Step-by-step explanation:
The perimeter of a geometric figure is the sum of the lengths of its sides. Opposite sides of a rectangle are of equal length, so the perimeter can be figured as twice the sum of the length of adjacent sides:
   2(60 ft + 30 ft) = 180 ft
Mrs. Chen needs 180 feet of fence.