Answer:

Step-by-step explanation:
Question: 5 - 7(z+1) = 7(-9-3z)
We multiply the number in front of the bracket first, since that is multiplication. 
--> 5 -7z -7 = -63 - 21z
--> -7z -2 = -63 - 21z
Now, we move all the z and all the numbers to each side.
--> -7z +21z = -63 +2
--> 14z = -61
--> z = -61/14
This cannot be simplified further, so z is -61/14. 
 
        
                    
             
        
        
        
Answer:
it block pic
Step-by-step explanation:
 
        
             
        
        
        
Answer:
part A no
Part B yes :)
Step-by-step explanation:
measure the 2 in part A and of course their not right but for Part B its just slanted
 
        
             
        
        
        
Answer:
10! because 3 to get 15 is 5 and 2×5 is 10
 
        
                    
             
        
        
        
If the two triangles are similar you can use a proportion to solve for the length of the legs.

=

Now, you would cross multiply to get 
4x=18
Now, you simplify that using the division property of equality.
You end up with 
x=4.5
Therefore, the legs of the triangle with a base of 9 inches will each be 4.5 units long.