I'll denote the identity function by 
. Then for any functions 
with inverse 
,
One important fact is that composition is associative, meaning for functions 
, we have
So given
we can compose the functions on either side with 
:
then apply the rules listed above:
Since the interior angles of a triangle equal 180°, then 180-45=135.
Then you would use 135 to find the remaining two angles: b+3b=135.
4b=135.
Divide to find b. And the plug in whatever b is for the to figure out Angles B and C.
However, I believe the equation it's looking for is: 180=45+b+3b OR 45+4b=180
Answer:
the answer is 4.625 or 4 6/10
Step-by-step explanation:
I just used a calculator. hope this helps <3
A large soft drink costs one and a half times as much as small soft drink. If a small drink costs n dollars, write an expression representing how much a large drink costs.
A) 1.5n
B) 1.5 + n
C) 0.5 + n
D)
1
__ n
2
