The powers of the federal government are
explained in the constitution.
decided by the states.
protected in the bill of rights.
shared by state governments.

Explained in the constitution

Explanation:

The powers of the federal government are explained in article I, II and III in the US Constitution which outlines the structure, functions, and powers of each branch of the government: the legislative, the executive and the judicial. These powers can be divided into expressed powers, which are those that are specifically delegated to the government in the Constitution such as the Congress' power to lay and collect taxes, and implied powers, which are those that are not specifically granted to the government but that are necessary to carry out its functions, such as the power to punish tax evaders.

because mexico wanted to choose a centralized location