Answer:
I swear I hate those people who put links
Answer:
D. 25°
Step-by-step explanation:
Answer:
fg(2) = 9 means that f(g(2)) = 9
We know that g(2) = 6
So f(6) = 9 which means that
6a - b = 9 (note 1)
And we know that g(f(1/2)) = 2
And we know that f(1/2) = 1/2(a) - b
So g(1/2(a) - b) = 2
Meaning that 1/2(a) - b + 4 = 2
So 1/2(a) - b = - 2 (note 2)
Using note 1 and 2 we can solve the equation
11/2(a) = 11 so a = 2 and b = 3
A decagon has 10 sides therefore it has 10 interior angles
Answer:
20
Step-by-step explanation:
t=1
u=2
t+8+u+8+1=1+8+2+8+1=20
