Object a: 
perimeter is all the sides added together! 
9+9=18
4.1+4.1= 8.2
18+8.2=36.2
object A’s perimeter is 36.2 CM
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object b: 
7.2+3+ 3.6= 13.8
object B’s perimeter is 13.8 CM
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hope this helped! xoxo
        
             
        
        
        
Answer:
Step-by-step explanation:
Make 6 1/2 an irrational fraction: 13/2 (I dunno know if its called that )
divide 16 by 2: 8
multiply that by 13: 104
Tell me if this helps or not bc I'm not really sure, but I really hope I helped!
 
        
             
        
        
        
Hello :
x =(1/4)y²
<span> the coordinate point for the vertex is :  O ( 0, 0)</span>
        
             
        
        
        
There are a few ways to solve this. The method I will use is the substitution method. Since they give us a "y = " statement, we can replace the y in the second equation with what it gives us to the right of the equal sign.
- 3x + 6(- 2x - 1) = 24
Simplify by using the distributive property. 
- 3x + 6(- 2x) + 6(- 1) = 24
- 3x - 12x - 6 = 24.
Combine like terms
- 15x - 6 = 24
Add 6 to each side.
- 15x = 30
Divide both sides by - 15 to isolate variable X
x = 30 / - 15
x = - 2.
Now plug in the x-value we've found back into the first equation.
y = - 2( - 2) - 1
y = 4 - 1
y = 3
Your answer is (- 2, 3)
        
             
        
        
        
Answer:
9 feet
Step-by-step explanation:
Given:
A prism with a triangular base has a volume of 432 cubic feet.
The height of the prism is 8.
The triangle base has a base of 12 feet. 
Question asked:
The height of the triangular base of the prism = ?
solution:
Volume of  triangular prism = 
 
 
Dividing both side by 8

  
   
 

Multiplying both side by 2

Dividing both side by 12

Thus, height of the triangular base of the prism is 9