We have 
.
To find inverse function 
we substitute x with and vice-versa to get
Now solve for . Note that I will use 
instead.
So we find that 
.
Hope this helps.
Answer:
first find the area of the big rectangle = 12×14=168
area of the small unshaded rectangle =2×5×6=60
area of the shaded region = 168-60=108
Answer:
56
Step-by-step explanation:
6+7b-3a
Substitute:
6+7(8)-3(2)
Solve:
6+56-6
Simplify:
6+50
=56
5 girls : 4 boys
5 + 4 = 9 students
= 27 students ( 5girls / 9 students )
*cancel students units*
= 27 ( 5 girls / 9)
= 15 girls
Since (x - 2)° and (2x + 5)° represent a pair of supplementary angles, then their sum must be equal to 180°. Therefore, the two supplementary angles are 57° and 123°.
