A roofing contractor is fabricating gutters from $10$ -inch aluminum sheeting.The contractor plans to use an aluminum siding folding press to create the gutter by creasing equal lengths for the sidewalls (see figure). where $a = 10 - 2 x$ Let x represent the height of the sidewall of the gutter.Write a function A that represents the
Cross-sectional area of the gutter.

A) $A = - 2 x ^ { 2 } + 10 x$
B) $A = 10 x ^ { 2 } - 2 x$
C) $A = - 10 x - 2 x ^ { 2 }$
D) $A = 2 x ^ { 2 } - 10 x$
E) $A = 2 x ^ { 2 } + 10 x$

Question

A roofing contractor is fabricating gutters from $10$ -inch aluminum sheeting.The contractor plans to use an aluminum siding folding press to create the gutter by creasing equal lengths for the sidewalls (see figure).  ​ where $a = 10 - 2 x$ Let x represent the height of the sidewall of the gutter.Write a function A that represents the
Cross-sectional area of the gutter.
​
A) $A = - 2 x ^ { 2 } + 10 x$ 
B) $A = 10 x ^ { 2 } - 2 x$ 
C) $A = - 10 x - 2 x ^ { 2 }$ 
D) $A = 2 x ^ { 2 } - 10 x$ 
E) $A = 2 x ^ { 2 } + 10 x$

Quizplus · Accepted Answer

The Answer of A roofing contractor is fabricating gutters from $10$ -inch aluminum sheeting.The contractor plans to use an aluminum siding folding press to create the gutter by creasing equal lengths for the sidewalls (see figure).  ​ where $a = 10 - 2 x$ Let x represent the height of the sidewall of the gutter.Write a function A that represents the
Cross-sectional area of the gutter.
​
A) $A = - 2 x ^ { 2 } + 10 x$ 
B) $A = 10 x ^ { 2 } - 2 x$ 
C) $A = - 10 x - 2 x ^ { 2 }$ 
D) $A = 2 x ^ { 2 } - 10 x$ 
E) $A = 2 x ^ { 2 } + 10 x$

A Roofing Contractor Is Fabricating Gutters From 101010 -Inch Aluminum Sheeting a=10−2xa = 10 - 2 xa=10−2x

A Roofing Contractor Is Fabricating Gutters From $10$ -Inch Aluminum Sheeting $a = 10 - 2 x$