Construction. A construction company has 840 feet of chain-link fence that is used to enclose storage areas for equipment and materials at construction sites. The supervisor wants to set up two identical rectangular storage areas sharing a common fence (see the figure). Assuming that all fencing is used, (A) Express the total area A x enclosed by both pens as a function of x . (B) From physical considerations, what is the domain of the function A ? (C) Graph function A in a rectangular coordinate system . (D) Use the graph to discuss the number and approximate locations of values of x that would produce storage areas with a combined area of 25 , 000 square feet. (E) Approximate graphically (to the nearest foot) the values of x that would produce storage areas with a combined area of 25 , 000 square feet. (F) Determine algebraically the dimensions of the storage areas that have the maximum total combined area. What is the maximum area?
Construction. A construction company has 840 feet of chain-link fence that is used to enclose storage areas for equipment and materials at construction sites. The supervisor wants to set up two identical rectangular storage areas sharing a common fence (see the figure). Assuming that all fencing is used, (A) Express the total area A x enclosed by both pens as a function of x . (B) From physical considerations, what is the domain of the function A ? (C) Graph function A in a rectangular coordinate system . (D) Use the graph to discuss the number and approximate locations of values of x that would produce storage areas with a combined area of 25 , 000 square feet. (E) Approximate graphically (to the nearest foot) the values of x that would produce storage areas with a combined area of 25 , 000 square feet. (F) Determine algebraically the dimensions of the storage areas that have the maximum total combined area. What is the maximum area?
Construction. A construction company has
840
feet of chain-link fence that is used to enclose storage areas for equipment and materials at construction sites. The supervisor wants to set up two identical rectangular storage areas sharing a common fence (see the figure).
Assuming that all fencing is used,
(A) Express the total area
A
x
enclosed by both pens as a function of
x
.
(B) From physical considerations, what is the domain of the function
A
?
(C) Graph function A in a rectangular coordinate system.
(D) Use the graph to discuss the number and approximate locations of values of
x
that would produce storage areas with a combined area of
25
,
000
square feet.
(E) Approximate graphically (to the nearest foot) the values of
x
that would produce storage areas with a combined area of
25
,
000
square feet.
(F) Determine algebraically the dimensions of the storage areas that have the maximum total combined area. What is the maximum area?
Formula Formula A polynomial with degree 2 is called a quadratic polynomial. A quadratic equation can be simplified to the standard form: ax² + bx + c = 0 Where, a ≠ 0. A, b, c are coefficients. c is also called "constant". 'x' is the unknown quantity
Finite Mathematics & Its Applications (12th Edition)
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