Question

HELP: Can't figure this one out

Answer 1

I am trying to understand the shape and everything and it is totally going over my head

Answer 2

I feel so stupid. I can't solve a single question on my own!!!!!

Answer 3

the way i read this problem, the "horizontal rods" are the ones at the base of the square and the vertical rods are the height of the box. does that sound reasonable?

Answer 4

ya i guess

Answer 5

the language is not so clear, so i can understand why this would be confusing.

Answer 6

base is a square so area is
\[x^2\] and volume of box is
\[V=x^2y\]

Answer 7

ya but the confusiing part are th erods

Answer 8

now we have
\[x'=.001,y'=.002\] right?

Answer 9

where are the rodds

Answer 10

I thought I told you to go to bed

Answer 11

i think they are just calling them "rods" because this setup is so improbable they had to call them something. i cannot really picture how these things are all going to move like that. sounds very artificial. but now we should be in good shape

Answer 12

wait that was wrong. we have
\[V'=2xx'y+x^2y'\] looks better

Answer 13

base has area of 9 cm square means x = 3, and volume is 180 mean y = 20, plug in the numbers and we should be good

Answer 14

the "rods" are the edges if i read this correctly