Answer:
62/100= 31/50
45/100= 9/20
Step-by-step explanation:
Divide 62 and 100 by two to simplify
Divide 45 and 100 by 5 to simplify
 
        
                    
             
        
        
        
1. Answer;
- Triangle 
Explanation;
The cross section formed by a plane that contains a vertical line of symmetry for a tetrahedron is a Triangle.
A tetrahedron also a triangular pyramid, is a polyhedron composed of four triangular faces, six straight edges, and four vertex corners.
2. Answers
- Triangle 
Explanation;
The cross section formed by a plane that intersects three faces of a cube is a Triangle. A cross section is the shape we get when cutting straight through an object. The shape of the cross-section of a solid depends upon the orientation of the cutting plane to the solid.
 
        
                    
             
        
        
        
Answer:
12
Step-by-step explanation:
You set up cross multiplication 3/4 x  9/x, you go 4x9=36 divided by 3 equals 12
 
        
             
        
        
        
Answer:
Q 12 roots of the equation
 
∝ = 
β = 
no matter if u oppose the root 
(i) 2( )
) +2
+2 (
( )+2(
)+2(
(ii)( - 3 (
 - 3 ( )(
)( ) + (
) + ( ) =
) = 
Q 13  roots of equation 

the roots of the second equation are 
x1 = 1/3(-0.693) = -0.231
x2 = 1/3(1.443) = 0.481
the equation is 
(x+0.231)(x-0.481)=0
