Answer:
A true
Step-by-step explanation:
Rectangles have parallel sides and 90 degree angles.
Squares have parallel sides and 90 degree angles and equal length sides
Square are a subset of rectangles
All squares are rectangles
 
        
                    
             
        
        
        
Answer:
BC = 10, AC= approximately 13.66 OR 5+5 √3
Step-by-step explanation:
Law of Sines
 
        
             
        
        
        
A. You may set the variables in either order. But for argument sake, let's set as follows:
x = Amount of bookshelves
y = Amount of tables
B. Because of the amount of things you need to make, the following is an inequality using those variables.
x + y > 25
Plus you can determine a second inequality based on the amount of money that you have to spend. 
20x + 45y < 675
Finally you may also add in that each value must be greater than or equal to zero, since they cannot have negative tables. 
C. By solving the system and looking at basic constraints when graphed, you can see the feasible region has 4 vertices. 
(0,0)
(18, 7)
(0, 15)
(33.75, 0) or (33, 0) if you insist on rounding. 
        
             
        
        
        
Multiply the length by width by the height/3
7 x 6 x 8/3 = 112 in^2
The answer is 112 in^2
 
        
                    
             
        
        
        
Answer:
C .56
Step-by-step explanation:
well thier are 5 days that are less then 3 days and theirs 9 days in total so you would do 5/9  to get the chance of it being less then 3 days.
5/6 = .555556