Answer:
Step-by-step explanation:
32 divide 4 = 8
 
        
                    
             
        
        
        
Answer:
Therefore values of a and b are

Step-by-step explanation:
Rewrite  in the form
 in the form 
 
 
where a and b are integers, 
To Find:
a = ?
b = ?
Solution:
 ..............Given
 ..............Given
Which can be written as
 
 

Adding half coefficient of X square on both the side we get
 ...................( 1 )
 ...................( 1 )
By identity we have (A - B)² =A² - 2AB + B²
Therefore,

Substituting in equation 1 we get

Which is in the form of

On comparing we get
a = 3 and b = 2
Therefore values of a and b are

 
        
             
        
        
        
Answer:
C) 50°
Step-by-step explanation:



 
        
             
        
        
        
Answer:
Elissa needs 4 quarts of paint, or 1 gallon. 
Step-by-step explanation:
Elissa's room is in the shape of a rectangular prism.  Assuming that she will only be painting the walls and not the floor or ceiling, you just need to calculate the area of the four walls - front and back and side to side.  Based on the dimensions given, the area of Elissa's front and back walls are 8 ft x 9 ft or 72 ft² for each wall.  Since there are two, we take that area times two: 72 x 2 = 144 ft².
Elissa's side walls are 8 ft x 13 ft or 104 ft² for each wall.  Since there are two, we take this area times two:  104 x 2 = 208 ft².
To find the total area needed to paint, we add all four walls:  144 + 208 = 352 ft².  Since a quart of paint covers 100 ft² and a gallon covers 400 ft², Elissa can either purchase 4 quarts of paint or 1 gallon to paint her bedroom.