rectangle has perimeter of 32'; find max area

Quadratic equations and inequalities, variation equations, function notation, systems of equations, etc.
uptown4784
Posts: 1
Joined: Wed Dec 19, 2012 5:36 pm
Contact:

rectangle has perimeter of 32'; find max area

Postby uptown4784 » Wed Dec 19, 2012 11:42 pm

A rectangle has a perimeter of 32 ft. Find the maximum area of the rectangle

Find the equation of the circle (in standard form) with radius 7 and center

got my wisdom teeth removed today. wasnt able to make it to class

theshadow
Posts: 136
Joined: Sun Feb 22, 2009 11:12 pm

Re: rectangle has perimeter of 32'; find max area

Postby theshadow » Thu Dec 20, 2012 12:06 am

A rectangle has a perimeter of 32 ft. Find the maximum area of the rectangle
they show how to set this up and get the answer here
Find the equation of the circle (in standard form) with radius 7 and center
put 7^2 for r and the origin for the center in the circle eqn

buddy
Posts: 197
Joined: Sun Feb 22, 2009 10:05 pm
Contact:

Re: rectangle has perimeter of 32'; find max area

Postby buddy » Sat Dec 22, 2012 7:27 pm

A rectangle has a perimeter of 32 ft. Find the maximum area of the rectangle
32=2L+2W, A=LW
solve 1st for one of the vars. plug into 2nd. find vertex to find max.
Find the equation of the circle (in standard form) with radius 7 and center
r=7, r^2=7^2=49, (h,k)=(0,0)
plug into (x-h)^2+(y-k)^2=r^2


Return to “Intermediate Algebra”

cron