Answer:
(b) the unknown angle is 80°
Step-by-step explanation:
The unkown angle is:
[2(x-10)]°
Substituting "x" by 50 (part a)
[2(50-10)]°=[2(40)]°=80°
Answer:
That sign means raise to power e.g 5^2.
5 in 2 places which is 25.
Also meaning 5× 2= 25
It is in the hundrethds place
350,000 because the ten thousands is 40,000 so you would look to the right of the four and it’s a six so you would add a one to the four to make it a five and replace all other numbers behind the five with zeros