Answer:
-8(5b+2)-7(b-5)
first, use distributive property to get:
-40b-16-7b+35
then, use combine like terms to simplify:
-47b+19
that's your answer! 
:)))))))))
 
        
                    
             
        
        
        
You have the following function:

Derivate implictly the previous expression, as follow:

Where you have used that:

Then, the implicit derivative of the given expression is:

Next, solve for y' as follow:

 
        
             
        
        
        
Can you make this more clear?? not really sure what I'm supposed to be doing here
        
             
        
        
        
To find area, you multiply length * width. There are 4 sides on a number, so we need to have a equation like this. x * x * y * y = 12cm. If we do 4 * 4, we get 8. We could also use 2 * 2 = 4. 8 + 4 = 12. So, width = 8, and length = 4.
Hope this helps! ☺♥
        
             
        
        
        
1) calculate the volume of the tri prism    2) find area of the base face    3) find the height    4) multiply area of the triangle base time height    5) answer will be in cubic units