Question

Perimeter and area polynomials Length of hallway = 11y+1width = y-7

Answer 1

Given:

$\begin{gathered} l=11y+1 \\ w=y-7 \end{gathered}$

Required:

To find the perimeter and area hallway.

Explanation:

Area :

$\begin{gathered} A=lw \\ \\ =(11y+1)(y-7) \\ \\ =11y^2-77y+y-7 \\ \\ =11y^2-76y-7 \end{gathered}$

Perimeter :

$\begin{gathered} P=2(l+w) \\ =2(11y+1+y-7) \\ =2(12y-6) \\ =24y-12 \end{gathered}$

Final Answer:

Area :

$11y^2-76y-7$

Perimeter :

$24y-12$