Question

A sugar cub dissolves in a cup of tea. Find the rate of decrease of its surface area, S, when the side length, x, is 0.5cm

Answer 1

you need to know more

Answer 2

A= 6s^2

Answer 3

you want dA/dt

Answer 4

thats all it says in my book

Answer 5

you would need how fast the side lenght is decreasing

Answer 6

YUP THATS THE ANSWER!

Answer 7

what :|

Answer 8

how did you get that?

Answer 9

get what?, what was the question

Answer 10

its says the answer is 6cm^2/com

Answer 11

*cm

Answer 12

u make no sensee, there is something in question which you are missing

Answer 13

yeh well dont worry about the question

Answer 14

whoever wrote it was stupid

Answer 15

haha i agree!

Answer 16

Oh i think i get it
they are looking for dA/dx not dA/dt
A = 6x^2
dA/dx = 12x
at x=0.5
dA/dx = 12(.5) = 6

Answer 17

OHHHH I GET IT! THANKS