Ask your own question, for FREE!
Mathematics 63 Online
OpenStudy (mtalhahassan2):

I need help?

OpenStudy (mhchen):

What's the question?

OpenStudy (mtalhahassan2):

OpenStudy (mtalhahassan2):

#12

OpenStudy (mathmale):

Has your teacher demonstrated a similar problem? If so, what could you learn from that problem? The goal here is to determine the length of one edge of the square of cardboard whose corners are cut off to make a box out of the remaining cardboard.

OpenStudy (mtalhahassan2):

yea if i remember my teacher want me to make up an equation which tell the dimensions of the bos

OpenStudy (mtalhahassan2):

so it is goona be (4x+4)(4x-4)=484 i actually forget sorry if you can help me out

OpenStudy (mtalhahassan2):

@Astrophysics

OpenStudy (mtalhahassan2):

@agent0smith

OpenStudy (mtalhahassan2):

@zepdrix

OpenStudy (agent0smith):

Volume is length*width*height See if you can work out expressions for the length, width, and height, from the diagram

OpenStudy (mtalhahassan2):

ok so the length be (4x+4), width be (x+4)

OpenStudy (mtalhahassan2):

agree?

OpenStudy (agent0smith):

Not close.

OpenStudy (mtalhahassan2):

2x+4

OpenStudy (agent0smith):

Look at the diagram i just attached.

OpenStudy (mtalhahassan2):

idk

OpenStudy (mtalhahassan2):

can you help?

OpenStudy (agent0smith):

Look at the diagram. Length/width/height are clearly labeled.

OpenStudy (mtalhahassan2):

length is 4 I believe width is 4 and the height is x

OpenStudy (agent0smith):

http://assets.openstudy.com/updates/attachments/57f00af3e4b037122979defb-agent0smith-1475353958360-capture.jpg There are three things shown on this diagram. How are you misreading it.

OpenStudy (mtalhahassan2):

height = 4 cm length = width = x-8 (x-8)(x-8)(4) = 484 x^2 -16 x + 64 = 121 x^2 - 16 x -57 = 0 (x-19)(x+3) = 0 x = 19 x = -3

OpenStudy (mtalhahassan2):

@agent0smith

OpenStudy (agent0smith):

Wow. No. idk how you are misreading the diagram. The length is x, width is x, height is 4.

OpenStudy (mtalhahassan2):

oh ok my bad let's be re-corrected then

OpenStudy (mtalhahassan2):

me*

OpenStudy (mtalhahassan2):

now I am getting (x)(X)(4)=484 x^2 =121 x^2-121=0 (x-11)(x+11)=0 x=11 x=-11

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!