Answer:
   (4)  5 m
Step-by-step explanation:
You want the length of side x of a right triangular prism with base edge lengths of 2.5 m and 2 m, and a volume of 12.5 m³.
<h3>Volume</h3>
The volume of the prism is given by the formula ...
   V = Bh
where B is the area of the base:
   B = 1/2bh . . . . where b and h are the leg dimensions of the right triangle
Using these formulas together, we have ...
   V = 1/2(2.5 m)(2 m)x
   12.5 m³ = 2.5x m²
Dividing by 2.5 m², we find x to be ...
   (12.5 m³)/(2.5 m²) = x = 5 m
The dimension labeled x has length 5 meters.
 
        
             
        
        
        
        
Answer:
x+3y=-1
Step-by-step explanation:
y=3x-2 so m=3 old slope
the new slope must be -1/3 (opposite reciprocal of the old slope).
y-y0=m*(x-x0)
y-2=-1/3*(x-(-7))
y-2=-1/3x-1/3*7
y-2=-1/3x-7/3
3y-6=-x-7
The standard form for linear equations in two variables is Ax+By=C. 
x+3y=6-7
x+3y=-1
 
        
             
        
        
        
Answer: x^2+5x+6
Step-by-step explanation:
 
        
             
        
        
        
Using the same numbers u started out with