Answer:
See explanation
Step-by-step explanation:
We want to show that:

One way is to use the basic double angle formula:


We simplify further to get:

We simplify again to get;

This finally gives:

Answer:
380
Step-by-step explanation:
10%->38
100%-> 38÷10×100=380
Answer:
The base is reducing at a rate of 3.4cm per min.
Step-by-step explanation:
Let The Height of the Triangle, h
Area of the triangle = A
Area of a Triangle, 
When 



The base is reducing at a rate of 3.4cm per min.
The answer to this problem is 3(2x+1)
Answer:
A=3, B =3, C = 3
Step-by-step explanation:
9/3 (the letters) = 3 Each
3 - 24 - 3 = -27
2a = 6
6 - 3 + 3 = 6
A, b, c, all equal 3.