X + 2 C
85. The area of a rectangle is 64 square inches. Express the
perimeter Pas a function of the width w and state the domain.
86. The perimeter of a rectangle is 50 inches. Express the area A
as a function of the width w and state the domain.
87. The altitude of a right triangle is 5 meters. Express the hy-
potenuse h as a function of the base b and state the domain.
88. The altitude of a right triangle is 4 meters. Express the base b
as a function of the hypotenuse h and state the domain.
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APPLICATIONS
Most of the applications in this section are calculus-related. That
is, similar problems will appear in a calculus course, but
is of the functions will be performed .