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lilly21
Group Title
Please help crashing for finals!
The length of the rectangle is 4t+5 and its height is t^6, where t is time in seconds and the dimensions are in inches. Find the rate of change of area, A, with respect to time.
 2 years ago
 2 years ago
lilly21 Group Title
Please help crashing for finals! The length of the rectangle is 4t+5 and its height is t^6, where t is time in seconds and the dimensions are in inches. Find the rate of change of area, A, with respect to time.
 2 years ago
 2 years ago

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Algebraic! Group TitleBest ResponseYou've already chosen the best response.0
A= l*h = (4t+5)(t^6) dA/dt = d/dt (4t^7 +5t^6 )
 2 years ago

lilly21 Group TitleBest ResponseYou've already chosen the best response.0
my teacher gave me the answer it is dA/dt=t^3(30+28t) but im not so sure as to how to do the problem
 2 years ago

Algebraic! Group TitleBest ResponseYou've already chosen the best response.0
aka 28t^6 +30t^5
 2 years ago

lilly21 Group TitleBest ResponseYou've already chosen the best response.0
thats what i got when i first did the problem what you gave me just now
 2 years ago

Algebraic! Group TitleBest ResponseYou've already chosen the best response.0
dA/dt=t^5(30+28t) think you have a typo there..
 2 years ago

Algebraic! Group TitleBest ResponseYou've already chosen the best response.0
or in the original problem...
 2 years ago

lilly21 Group TitleBest ResponseYou've already chosen the best response.0
yeah you know what i was thinking that too. so doing the problem just as i had done it taking the derivative of the problem thats how we go about these problems right? simply taking the derivative??
 2 years ago

lilly21 Group TitleBest ResponseYou've already chosen the best response.0
:( no i need a definite answer because i have a final in a couple of days and i NEED to get a good score on it
 2 years ago

Algebraic! Group TitleBest ResponseYou've already chosen the best response.0
"so doing the problem just as i had done it taking the derivative of the problem thats how we go about these problems right?" I have no idea what that word salad might mean... so I decline to comment on it aside from a provisional 'sure'
 2 years ago

lilly21 Group TitleBest ResponseYou've already chosen the best response.0
okay then thanks
 2 years ago
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