Answer:
16
Step-by-step explanation:
 
        
             
        
        
        
Answer:
The two squares are 81 and 100, and their difference is 19
 
        
                    
             
        
        
        
Answer:
24.4 feet
 Explanation:
Let x be the length of the wooden board as shown in the diagram.
Using trigonometry ratio, we can write


cross multiplying we get:

Diving through by 0.819, we obtain

To the nearest tenth, x=24.4 feet.
 
        
             
        
        
        
Answer:
1a - no
1b - yes
1c - no
2 - 1.5 grams of protein
3 - a solution to this equation tells us how many grams of protein/fat there could be depending on how many grams of the other there are. a solution to this is 6 grams of protein and 4 grams of fat.
Step-by-step explanation:
1a 
4(5)+9(2)=60
20+18=60
38=60
the equation is false
1b
4(10.5)+9(2)=60
42+18=60
60=60
the equation is true
1c
4(8)+9(4)=60
32+36=60
68=60
the equation is not true
2
plug in 6 for the f value
4p+9(6)=60
4p+54=60
subtract 54 from both sides
4p=6
divide both sides by 4 to get p alone
p=1.5
3
a possible solution can be seen by graphing the equation using the intercepts. the intercepts for this equation are (15,0) and (0,6.6). attached is an image of the graph. the points where the line crosses are possible solutions. the line crosses the point (6,4) on the graph, which represents 6 grams of protein and 4 grams of fat. you can also check this by plugging these values into the equation.
 
        
             
        
        
        
Answer:
3.331 , 3.313 , 3.133 , 1.333
Step-by-step explanation:
because it just is that way