Answer:
10x-2x-4=8x-4 اتمنى لك التوفيق
 
        
                    
             
        
        
        
Blank 1: If y is -5 when x is 2, that means the equation here is y = -2.5x. So, if x is 8, that makes the equation y = -2.5(8), which gives you -20.
Blank 2: If y is 3 when x is 1, the equation will be y = 3x. If x is 2, that will give you y = 3(2), which is 6.
Blank 3: If y is -7 when x is -21, the equation will be x = 3y. If y is 9, that will give you x = 3(9), which is 27. 
Blank 4: If y is 5 when x is 4, the equation will be y = 1.25x. If y is 18, that makes the equation 18 = 1.25x, which is 14.4.
I hope this all helped!
 
        
             
        
        
        
The pythagorean theorem states that for any RIGHT-ANGLED TRIANGLE, the relationship between the side lengths are A²+B²=C², where C is the hypotenuse :P
Which means that it can only be applied on right angled triangles~
So your answer would be B, a right-angled triangle.
Ask me if you are unsure about anything <3
        
                    
             
        
        
        
Answer:
Each box weighs 6.906 pounds.
Step-by-step explanation:
We know the total weight of the boxes. We also know how many boxes we have. To find the weight of one box, we want to divide the total weight by the total number of boxes.
34.53 / 5
= 6.906
Each box weighs 6.906 pounds.
Hope this helps!
 
        
             
        
        
        
Answer:
D
Step-by-step explanation:
Recall that the area of a triangle is given by: 

In this case, the base is <em>x</em> and the height is <em>y</em>. Hence: 

We can write the following ratios: 

Solve for <em>x</em> and <em>y</em>: 

Substitute: 

And simplify. Hence: 

In conclusion, our answer is D.