a) area of the rectangel and indicate if your answer shows increase, decrease or neither in its rate of change.
b) perimeter of the rectangle and indicate if your answer shows increase, decrease or niether in its rate of change.
answer
a) 14 cm^2/sec(increase)
b) 0 cm/sec
please explain how the get the answer
2007-09-27 16:28:12 · 5 answers · asked by fvsdf s 2 in Science & Mathematics ➔ Mathematics
Difficult !
2007-09-27 22:30:47 · answer #1 · answered by Como 7 · 1⤊ 0⤋
As others have mentioned, there seems to be a fairly significant chunk of the problem missing.
However, the procedure required is as follows:
a) Write a function for the area as a function of time, A = f(t). How you do this will depend on the part of the problem you haven't given us.
Then, differentiate this function to get the rate of change of area with respect to time. Substitute the indicated time value into the derivative to find the rate of change at that time - this should give you 14 cm^2/sec. Since the rate of change is positive, the area is increasing. If it was negative, the area would be decreasing.
b) is the same, but using the perimeter instead of the area.
2007-09-27 23:40:54 · answer #2 · answered by Scarlet Manuka 7 · 0⤊ 0⤋
Let's play jeapordy and you can explain how to get the problem!!
2007-09-27 23:31:57 · answer #3 · answered by cattbarf 7 · 0⤊ 0⤋
I'm desperate for the rest of your problem.
2007-09-27 23:36:56 · answer #4 · answered by IPuttLikeSergio 4 · 0⤊ 0⤋
you didnt write all the problem
2007-09-27 23:34:42 · answer #5 · answered by Theta40 7 · 0⤊ 0⤋