Answer:
Step-by-step explanation:
Let A represent the area of the triangular base and h the height of the prism. Then the volume of this triangular prism is V = (1/3)(A)(h).
The ascending or descending order of a polynomial is
determined by the increasing or decreasing power of variable “x” respectively.
<span>The question is to find about the polynomial in
descending order, so in this case, the 3rd option is correct, i.e.
4x^2 – 3x + 9 or 4x^2 – 3x^1 +9x^0. The power of “x”
decreasing from 2 to 1 and then finally to 0.</span>
Answer:

Step-by-step explanation:

The formula of perimeter of the rectangle:

Substitute:


Answer:
the answer is $140
Step-by-step explanation:
5x4=20 20x7=140