3. If the measure of angle 4 is 6x + 20 and the meas-
ure of angle 7 is 10x - 40, what is the measure of
angle 6?
a. 60°
b. 70°
c. 110°
d. 116°
e. 120°

E

Step-by-step explanation:

If you add all the number together then you will get yourself to 120

Π01 class is a subset of 2ω

Step-by-step explanation:

The set 2<ω consists of all finite sequences of 0s and 1s, while the set 2ω consists of all infinite sequences of 0s and 1s (that is, functions from ω = {0, 1, 2,} to the set {0,1}).

A tree on 2ω is a subset of 2ω that is closed under taking initial segments. An element f of 2ω is a path through a tree T on 2ω if every finite initial segment off is in T.