PLZZZZ HELP!!!!
SPEAKER PLACEMENT. A stereo receiver is in a corner of a 19-ft by 17-ft room. Speaker wire will run under a rug, diagonally, to a speaker in the far corner. If 3 feet of slack is required on each end,
how long a piece of wire should be purchased?

How long should the wire be?
Answer: ? feet.
(Round to the nearest foot.)

Question

PLZZZZ HELP!!!! 
SPEAKER PLACEMENT. A stereo receiver is in a corner of a 19-ft by 17-ft room. Speaker wire will run under  a rug, diagonally, to a speaker in the far corner. If 3 feet of slack is required on each end,
how long a piece of wire should be purchased?

How long should the wire be? 
Answer: ? feet.
(Round to the nearest foot.)

mertsj · Answer

|dw:1322949244338:dw|   Now add 6 feet for the extra on each end and round to the nearest foot.

anonymous · Answer

yes

anonymous · Answer

???

mertsj · Answer

Use the pythagorean theorem to find the hypotenuse of the triangle which is the diagonal of the room. $$17^{2}+19^{2}= diagonal ^{2}$$

mertsj · Answer

Solve that and add 6 for the extra on each end.

anonymous · Answer

can u just tell me the answer cuzz this homework is due in an hour so i need this done.

mertsj · Answer

|dw:1322950625544:dw|

  Now add 6 feet for the extra on each end and round to the nearest foot.

Are you telling me that you cannot add 6 to 25.5 ft?