anonymous
  • anonymous
Let A be the area of circle of radius r that is changing with respect to time. If dr/dt is constant, is dA/dt constant? Expain. PLEASE HELP!
Calculus1
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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dan815
  • dan815
OH NO!
dan815
  • dan815
|dw:1377905495472:dw|
dan815
  • dan815
Area changes on a square relationship to radius

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More answers

anonymous
  • anonymous
SO ITS NOT CONSTANT BECAUSE IF THE RADIUS CHANGES SO WILL THE AREA... ? RIGHT
dan815
  • dan815
wut
dan815
  • dan815
thats not what the question is trying to ask you
dan815
  • dan815
the rate dr/dt is constant so the radius is increasing constantly at a constant rate
dan815
  • dan815
so if the radius is increasing at a constant rate will the AREA increase at a constant rate? or will it increase more rapidly or more slow? stuff like that
dan815
  • dan815
|dw:1377905710263:dw|
anonymous
  • anonymous
SO THEN THE AREA IS NOT CONSTANT?
dan815
  • dan815
T_T
anonymous
  • anonymous
?
dan815
  • dan815
its not a question about is the area constant
dan815
  • dan815
but is the RATE of change of area constant or not
anonymous
  • anonymous
SO THEN THE RATE OF CHANGE OF THE AREA IS NOT INCREASING/DECREASING AT A CONSTANT RATE?
dan815
  • dan815
no
dan815
  • dan815
do you know why?
anonymous
  • anonymous
UMM KINDA BUT I DONT KNOW HOW TO EXPLAIN..
dan815
  • dan815
thats okay as long as YOU understand
dan815
  • dan815
|dw:1377906025857:dw|
dan815
  • dan815
say you have a circle with radius 1 and 2
dan815
  • dan815
the change of radius is 1
dan815
  • dan815
but the area changed by a 4 times what it was
dan815
  • dan815
the radius changed 2 times what it was and the area changed 4 times what it was
dan815
  • dan815
you can think of this pattern continuing as you expand the circle
dan815
  • dan815
so suppose i am expanding this circle at a constant rate meaning the changed in radius per time is constant
dan815
  • dan815
the area however will not be changing at the same rate as the radius
dan815
  • dan815
thats what the question is trying to ask you
dan815
  • dan815
for example Radius---- Area 1 pi 2 4pi 3 9pi 4 16pi 5 25 pi
dan815
  • dan815
lets say the radius is increasing at a rate of 1every second
dan815
  • dan815
if graph that
dan815
  • dan815
|dw:1377906271752:dw|
dan815
  • dan815
|dw:1377906309157:dw|
anonymous
  • anonymous
O OK I GET U :) SO dA/dt ISNT CONSTANT :)
dan815
  • dan815
ya
dan815
  • dan815
GIMME MEDAL!
dan815
  • dan815
:)
anonymous
  • anonymous
OO OK LOL :) THANK U VERY MUCH SIR:)
dan815
  • dan815
SURE YOU're WELCOME
goformit100
  • goformit100
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