Answer:
I might be in highschool, but I'm sure I can still help. 
Step-by-step explanation:
See the 45 degree angles? that means they're equal sides. So 4v2 = 5.65, right? so if you take 180 - 5.65, and then divide by two, you should have the length to each of those sides. They're equal, remember. So, the answer would be 180 - 5.65 = 174.35. 174.35 / 2 = 87.175. In this case, k = 87.175 :)
 
        
             
        
        
        
A ball is a Sphere sooooo......

And when you enter the radius.....
The answer will be about 523.6 inches
 
        
        
        
The picture shown is a unfolded rectangular prism.
The formula to find the surface area of a rectangular prism is:
A = 2(WL+HL+HW)
(W = width, L = Length, H= Height)
So we would need to determine the Height, Length, and Width first, and then plug them into the formula and solve for the area.
In this case:
The height is: 4 cm 
The length is: 10.5 cm
The width is: 6.4 cm
Now that we have determined the height, length, and width, we simply plug them into the formula I showed earlier. 
In this case the answer would be 269.6.
D. 269.6
        
             
        
        
        
Answer:
Answer is C. VT just took the test and this was the answer 100 percent.
Step-by-step explanation:
just took the test
 
        
             
        
        
        
Answer:
38
Step-by-step explanation:
j/-2=-19
j=38