Answer:
Carbon steel is a steel with carbon content from about 0.05% up to 2.1% by weight. ... High carbon steel has many different uses such as milling machines, cutting tools ... wear resistance; used for large parts, forging and automotive components. ... with no internal stresses, which is often necessary for cost-effective forming.
Step-by-step explanation:
Answer:
Step-by-step explanation:
(f o g)(7) = f(g(7))
but g(7) = 7-4 =3
(f o g)(7) = f(g(7)) = f(3) = 3² =9
Here is my answer. Hope it makes sense!

In the given figure, the Angle (6v - 4)° forms vertical opposite angle pair with 50° , so their measures is equal to one another.
that is :
therefore, value of v = 9°