An airport will be built on a rectangular plot of land. If the length is to be 3 km longer than its width, and the area of the airport is to be 25 km, what will be the width and length?
is this correctL w^2 + 3w + -25 = 0
which is w equals the width of the airport.
I need this QUICK.
2007-05-30 17:31:42 · 3 answers · asked by MaggieSin 3 in Science & Mathematics ➔ Mathematics
thank you. and yoru answers were very simple and just the ones i needed. THANKS ALOT! <333
2007-05-30 17:50:59 · update #1
Correct
2007-05-30 17:36:10 · answer #1 · answered by BotanyDave 5 · 0⤊ 0⤋
let width = W km
so length = L = (W + 3) km
W.(W + 3) = 25
W² + 3W - 25 = 0
W = [- 3 ± â109] / 2
W = 3.72 km
L = 6.72 km
2007-05-31 05:01:06 · answer #2 · answered by Como 7 · 0⤊ 0⤋
Yes.
2007-05-31 00:36:58 · answer #3 · answered by Anonymous · 0⤊ 0⤋