What is the rectangle in inches?
Please enter your answer as a number without the units.
2006-10-12 07:28:17 · 4 answers · asked by Me 6 in Education & Reference ➔ Homework Help
area=l*w=k[(1/2k)-4]=1/2k^2-4k sq. inches is the area
2006-10-12 07:31:32 · answer #1 · answered by raj 7 · 0⤊ 1⤋
Are you trying to find the perimeter of the rectangle?
W = (K/2) - 4 (the width is 4 inches less than 1/2 of its length)
P = 2K + 2W (equation of the perimeter of a rectangle)
sunstitute the first equation into W for the second equation
P = 2K + 2W
P = 2K + 2[(K/2) - 4]
now simplify
P = 2K + K - 8
P = 3K - 8
The perimeter is 3K - 8 (3 times the Length minus 8)
2006-10-12 14:43:19 · answer #2 · answered by Anonymous · 0⤊ 1⤋
If the area is wanted, the data in insufficient to give a numerical answer. The area can be expressed as a quadratic function of k, but not further evaluated. Similarly for the perimeter, which will be a linear function of k.
2006-10-12 14:33:31 · answer #3 · answered by Anonymous · 0⤊ 1⤋
L = k
w = 1/2k - 4
A = LxW
A = K(1/2k - 4)
A = 1/2k^2 - 4k
2006-10-12 14:35:41 · answer #4 · answered by pop 2 · 0⤊ 1⤋