Question

Solve.

2|s| = 18

A.
s = 9 only

B.
s = –9 only

C.
s = –9 or s = 9

D.
s = –18 or s = 18

Answer 1

a

Answer 2

Here, try this:

If you've got 2|s| = 18, the first step would be to isolate the |s|. This will make everything MUCH easier to figure out.

Here, lemme show ya.

2|s| = 18
|s| = 9
Alright! now, what do we know? Well, if you have |9|, that would equal 9, yes? Yes. But that's not teh only result! Because |-9| = 9 too! So your answer is actually C. Hope I helped.
^_^

Answer 3

The lines mean absolute value.
use absolute value for this:
(absolute value -9) = 9
2(9) = 18

Answer 4

c

Answer 5

A

Answer 6

thank you all so much!! :)