You're almost looking at the solution. Almost.
If it only said " r = 1 ", then that would be the solution right there.
But it says " | r | = 1 ", so there's a little more to it.
'r' can be either +1 or -1 and that equation will be a true statement.
So +1 and -1 are both solutions.
Answer:
The solutions are 
Step-by-step explanation:
To factor this cubic polynomial 
you must:
- Group the polynomial into two sections
- Factor out -9 from
- Factor out
from 
- Factor out common term
- Factor
- Using the Zero Factor Theorem: = 0 if and only if = 0 or = 0
The solutions are
Fabric needs to make a dress = 3 1/4
fabric needs to make jacket= 3 1/4 - 5/6
= 29/12 or 2 5/12
Hence total fabric needed for both pieces is
= 3 1/4 + 2 5/12
= 68/12 or 5 8/12 or 5 2/3 yards
Sine squared x + cos squared x is equal to 1
2x+3x=
X is simply a letter
