An autonomous regional political structure with a central government authorized to make laws and use political, economic, and military force to maintain order and defend its territory is referred to as a:

A state

Explanation:

A state is an autonomous regional political structure with a central government authorized to make laws and use political, economic, and military force to maintain order and defend its territory. A state is sovereign and holds supreme rule over its territory.

local max is .5

step-by-step explanation:

the local maximum is for x values between 2 and 4

it looks like the x value is 2.5 and the y value is .5

the secretary of state, appointed by the president with the advice and consent of the senate, is the president's chief foreign affairs adviser. the secretary carries out the president's foreign policies through the state department and the foreign service of the united states.