Solve the problem.A wire 20 feet long is to be cut into two pieces. One piece will be shaped as a square and the other piece will be shaped as an equilateral triangle. Express the total area A enclosed by the pieces of wire as a function of the length x of a side of the equilateral triangle. What is the domain of A?

What will be an ideal response?


A(x) =   x2 -  x + 25; {x|0 ? x ? }

Mathematics

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Multiply and write the answer as a mixed number in simplest form.-5 ? 3

A. -15
B. -16
C. -17
D. -15

Mathematics

Simplify.

A.
B.
C.
D.

Mathematics

Factor by grouping.18x2 + 24xy + 15xy + 20y2

A. (6x + 5y)(3x + 4y) B. (6x + 5)(3x + 4) C. (18x + 5y)(x + 4y) D. (6x - 5y)(3x + 4y)

Mathematics

Find the equation of the tangent line to the curve when x has the given value.f(x) =  -  + 4 ; x = 3

A. y = -7x - 9
B. y = -7x + 28
C. y =  + 1
D. y =  -  

Mathematics