Because the length cannot be negative the height of the plane is ___ miles. ???????????????? ???????????????? ???????????????? ???????????????? ???????????????? ????????????????…

Question

asked Mar 16, 2021 95.6k views

1 Answer

Jamaxack · Answer 1 · 2021-03-22T23:24:28+0000

Look at all the steps above. They lead to a double solution. The symbol

$x=\pm 5$

means that
can be either positive or negative 5. You can't accept negative values for lengths, so you're left with one option only.