Simon has
160
160160 meters of fencing to build a rectangular garden.
The garden's area (in square meters) as a function of the garden's width
w
ww (in meters) is modeled by
A
(
w
)
=
−
w
(
w
−
80
)
A(w)=−w(w−80)A, left parenthesis, w, right parenthesis, equals, minus, w, left parenthesis, w, minus, 80, right parenthesis

what width will produce the maximum garden area

How do i simply this expression (quadratic formula basis) on a ti-84 or normal calculator?

Circle d circumscribes abc and abe. which statements about the triangles are true? statement i: the perpendicular bisectors of abc intersect at the same point as those of abe. statement ii: the distance from c to d is the same as the distance from d to e. statement iii: bisects cde. statement iv: the angle bisectors of abc intersect at the same point as those of abe. a. i only b. i and ii c. ii and iv d. i and iii e. iii and iv

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