Answer:
b=6
Step-by-step explanation:
9b-10b=-6+10b-10b
-b=-6  so b=6
 
        
                    
             
        
        
        
Don’t know ...............................
        
             
        
        
        
Answer:

Step-by-step explanation:
step 1
Find the area of the circle
The area of the circle is

we have
 ----> the radius is half the diameter
 ----> the radius is half the diameter
substitute


step 2
Find the area of a sector
Remember that
The area of the circle subtends a central angle of 360 degrees
so
using proportion
Find out the area of a sector with a central angle of 108 degrees

assume

substitute

 
        
             
        
        
        
Answer:
y = 4x + 2
Step-by-step explanation:
Please let me know if you want me to add an explanation as to why this is the answer. I can definitely do that, I just wouldn’t want to write it if you don’t want me to :)
 
        
             
        
        
        
The partial products are: 42 x 28 = (40 + 2) x (20 + 8) = 40 x 20 + 40 x 8 + 2 x 20 + 2 x 8 
= 800 + 320 + 40 + 16 Hope this helped.