Answer with Step-by-step explanation:
We are given that an expression

Binomial expansion o f
is given by
=
a. We have to find the coefficient of 

Term is 
Coefficient =
b.Term in which
is 
Coefficient =
c.We have to find the coefficient of 
Term is 
Coefficient =
7 is a real number .......
Answer:
x = 30°
The angles:
- 2x° = 60°
- 3x° = 90°
- x° = 30°
Step-by-step explanation:
Hello!
The sum of all the angles in a triangle is 180°. So we can set up an equation for this question.
Solve the equation:
- 2x° + 3x° + x° = 180°
- 6x° = 180°
- x° = 30°
We can replace 30° for all the angles.
The measures are:
- 2(30°) = 60°
- 3(30°) = 90°
- 1(30°) = 30°