Answer:
The expression is not equivalent to other three is 9(n-9) .
Option (B) is correct .
Step-by-step explanation:
Take first expression
= -9 -7n + 16n
= 9n-9
Take second expression
= 9(n-9)
= 9 × n - 9 × 9
= 9n - 81
Take third expression
= n-9+8n
= 9n-9
Take fourth expression
= 9n-9
Therefore expression is not equivalent to other three is 9(n-9) .
Option (B) is correct .
Answer:
Step-by-step explanation:
Each of the four sides of this triangular prism has height 8 m and base 12 m. The area of each face this thus A = (1/2)(base)(height), or
A = (1/2)(12 m)(8 m) = 48 m^2. The total side area is thus 192 m^2.
This is the surface area. If we want to include the base area, that would be another (12 m)^2 , or 144 m^2.
The answer is -5 hope this helps
1 is in the 'Ten Thousand's' place.
