Question

... me is having no idea about deees one ..


~ Suppose a forest fire spreads in a circle radius changing at a rate of 5 feet per minute. when the radius reaches 200 feet , at what rate is the area of the burning region increasing? ...

Help .. or i go Die l⇀‸↼l

Answer 1

Let Me Give You The Idea :D

Answer 2

:] im listening :3

Answer 3

Before You Die :D

Answer 4

>_ >

Answer 5

yeah plz

Answer 6

That assumes the fire is a circular area:

\[A = πr²\]

Answer 7

The rate of change of the circular area with respect to its radius is given by:
\[dA/dr = 2πr\]

Answer 8

yup i know -..- .. i need help with that last part of the questiom :B

Answer 9

question with N not M >_<' .. sowwiee

Answer 10

However, the radius itself is changing with time - we are effectively told that:

\[dr/dt = 5\]

Answer 11

=..= r u even listening

Answer 12

To find the rate at which the area changes with time, we appeal to the fact that:

\[dA/dt = dA/dr * dr/dt\]

Answer 13

\[dA/dt = 2πr*5 = 10πr\]

Answer 14

When \[r = 200 feet\]

Answer 15

\[dA/dt = 2000π feet²/minute\]

Answer 16

Or,

\[dA/dt = 6283.19 feet²/minute \]

Answer 17

Okie sir .. -_- sankie you i go Die noW

Answer 18

I Dont Think So You Need To Die :)

Answer 19

(✖_✖) me is Dead

Answer 20

thanks .. >_ > u solved what i already know

Answer 21

=..=

Answer 22

What Do You Want To Know Then -__- ?

Answer 23

" At what rate is the area of the burning region increasing? " -_-

Answer 24

What Does dA/dt Mean ?

Answer 25

-..- why r u asking me this

Answer 26

change of rate

Answer 27

Because I Have Already given you the answer -_-

Answer 28

=.= thats what i know >_ >

Answer 29

:O

Answer 30

wat ..

Answer 31

when O_0

Answer 32

wherre o_o

Answer 33

dA/dt=6283.19 feet^2/minute

Answer 34

uhm .. r u sure about it .. cuz i think the question is asking about something else <>_ <>

Answer 35

-‿- i think .. i should ask my teacher about this one ..

Answer 36

｡◕‿◕｡ sankiyoo X3

Answer 37

im ur fan now X]

Answer 38

Kill Yourself :D

Answer 39

O_0 omg

Answer 40

>:[

Answer 41

or maybe i will kill u >:[]

Answer 42

щ(ಠ益ಠщ)