anonymous
  • anonymous
PLEASE HELP ME!!! Given the equation below, solve for y.
Mathematics
  • Stacey Warren - Expert brainly.com
Hey! We 've verified this expert answer for you, click below to unlock the details :)
SOLVED
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
chestercat
  • chestercat
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
anonymous
  • anonymous
z-4=\[z-4\frac{ y ^{2}+8z-48}{ z-4 }\]
anonymous
  • anonymous
@Jhannybean please help me
anonymous
  • anonymous
@kohai please can you help me??

Looking for something else?

Not the answer you are looking for? Search for more explanations.

More answers

DanJS
  • DanJS
you get anyqwhere?
anonymous
  • anonymous
@DanJS please help me
anonymous
  • anonymous
is it going to be y=z-4?
DanJS
  • DanJS
you need to isolate y on one side and it will = something in terms of all the other stuff, x
DanJS
  • DanJS
I would multiply both sides of the thing by (z-4) first
anonymous
  • anonymous
y=z-8 is this the answer?
DanJS
  • DanJS
should that be a +8y instead of the +8z you typed?
anonymous
  • anonymous
its a multiple choice question is my answer right?
DanJS
  • DanJS
|dw:1443160932457:dw|
anonymous
  • anonymous
its 8z
DanJS
  • DanJS
ok, just checking, that makes it easier, asking because a y would be a factorable numorator.
DanJS
  • DanJS
multiply both sides by (z-4) (z - 4)*(z-4) = y^2 + 8z - 48
DanJS
  • DanJS
expand z^2 - 8z + 16 = y^2 + 8z - 48
anonymous
  • anonymous
\[y=\sqrt{z ^{2}+6z-40}\]
DanJS
  • DanJS
move the 8z and the -48 to the other side... z^2 - 16z + 64 = y^2
DanJS
  • DanJS
take the root of both sides, and you get two answers for y, the + and the - root of all that on the left
DanJS
  • DanJS
\[y = \pm \sqrt{z^2-16z+64}\]
DanJS
  • DanJS
looking closer, the stuff under the root is a perfect square, factors to (z-8)^2 so you get simplified y = z - 8 or y = -(z-8)
anonymous
  • anonymous
so thats the answer? because i said y=z-8
anonymous
  • anonymous
@DanJS
DanJS
  • DanJS
sorry, back
DanJS
  • DanJS
yeah if that is the only choice in the multiple choice , there is also the negative of that , and there is a restriction on the values of z, but not sur eif you need that

Looking for something else?

Not the answer you are looking for? Search for more explanations.