SOLUTION: Hello, I'm reviewing for a final and need some help checking this problem: Evaluate each when x=3, y=-1, z=1/3 xz+y/z^2 thanks!

Algebra ->  Equations -> SOLUTION: Hello, I'm reviewing for a final and need some help checking this problem: Evaluate each when x=3, y=-1, z=1/3 xz+y/z^2 thanks!      Log On


   

Question 195027: Hello, I'm reviewing for a final and need some help checking this problem:
Evaluate each when x=3, y=-1, z=1/3
xz+y/z^2
thanks!
Answer by Edwin McCravy(20055) About Me  (Show Source):
You can put this solution on YOUR website!
Evaluate when x=3, y=-1, z=1/3
xz+y/z^2

You didn't put in any parentheses so I can't tell
whether it's

xz%2By%2Fz%5E2

or

%28xz%2By%29%2Fz%5E2

I'll do both.

----------------

If it's

xz%2By%2Fz%5E2

then we have

%283%29%281%2F3%29%2B%28-1%29%2F%281%2F3%29%5E2

1%2B%28-1%29%2F%281%2F9%29

1%2B%28-1%29%289%2F1%29

1%2B%28-9%29

1-9

-8

---------------

If it's

%28xz%2By%29%2Fz%5E2

then we have

%28%283%29%281%2F3%29%2B%28-1%29%29%2F%281%2F3%29%5E2

%281%2B%28-1%29%29%2F%281%2F9%29

%281-1%29%2F%281%2F9%29

0%2F%281%2F9%29

0%2A%289%2F1%29

0%2A9

0

Edwin