The surface area is the area of the outside of a 3D shape for example, let’s say you have a cube, a cube has 6 sides, so you have to find the area of each side and then add it up, since it’s a cube you would technically have to find the area of one side and then just multiply it by 6, that would be the easiest way to do it
Hope I helped!
        
             
        
        
        
Answer:

Step-by-step explanation:
Notice that function  has the exat shape of function
 has the exat shape of function  , and it has just be translated to the right by 3 whole units.
, and it has just be translated to the right by 3 whole units.
Recall that horizontal translations to the right involve subtracting the number of units moved in the translation from the variable "x". therefore, in our case this means:

 
        
             
        
        
        
Answer: 10 cups of sugar
Step-by-step explanation:
Cups of sugar : Cups of flour
                     2 : 3
                     ? : 15
Cross multiply
3? = 15 × 2
3? = 30
Divide both sides by 3
? = 10
He needs 10 cups of sugar.
 
        
             
        
        
        
Answer:
Sarah is 4 ft tall.
Step-by-step explanation:
231÷84= 2.75
11 ft ÷ 2.75 = <u>4 ft</u>
 
        
             
        
        
        
9514 1404 393
Answer:
   14.4
Step-by-step explanation:
The Pythagorean theorem tells you ...
   7² +a² = 16²
   a² = 256 -49
   a = √207
   a ≈ 14.4