I think it's 9 but I don't think it's right could someone tell me if I'm right or wrong?
2006-11-28 13:15:01 · 4 answers · asked by Jessie W 1 in Education & Reference ➔ Home Schooling
Wait a minute everybody!
those vertical lines,( lyl ) could mean absolute value!!
Helloooo?
so the answerSSS could be 9 and -9
sheesh!
2006-11-28 17:10:21 · answer #1 · answered by mike c 5 · 0⤊ 0⤋
3|y| = 27
|y| = 27/3 = 9
now |y| is not a normal function that can be used in an equation ... so square it ...
|y| also known as mod(y) squared is y^2
y^2 = 9^2 = 81
y = +9 or -9
if y squared is 81, y is either 9 or -9
2006-11-29 19:22:10 · answer #2 · answered by suraj 1 · 0⤊ 0⤋
YEAH, it is 9.
3y simply means 3 'times' y.
when you bring it to the other side, the symbol changes to 'divided by'.
so it'll be...
y = 27 'divided by' 3
which is 9.
2006-11-28 21:46:39 · answer #3 · answered by iqa87 1 · 0⤊ 1⤋
Is lyl meant to be one variable? If so, you are correct.
2006-11-28 21:47:16 · answer #4 · answered by http://muon_hackr.1up.com 2 · 0⤊ 1⤋