C
Explanation:
A surveyor provides close readings of land elevations
Answer:
Explanation:
An assumption is a completly random guess of somehting you dont even know. However a infrence is using numbers or symbols that you already know to guess.
The Rust Belt is an informal region referring to a an area that has experienced dramatic decline in its industry.
Explanation:
The Rust Belt is an area, or rather informal region in the United States. It has nothing to do with the climate characteristics of the area, but it got its name because of the drastic decline of the industry. This ''region'' is not only occupying territory in the northern Midwest, but it stretches as east as New York, and as west as Wisconsin.
Staring from the 80's, a belt like area along the northern part of the United States started to have sharp decline in its industry. The once powerful industrial centers suffered greatly, as the decline of the industry had major impact on the economy, lot of population moved out, and the places stagnated or even degraded. The most affected area was the Great Lakes region. The states where the ''Rust Belt'' goes through are:
- New York
- Pennsylvania
- West Virginia
- Ohio
- Indiana
- Michigan
- Illinois
- Iowa
- Wisconsin
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the introduction of the variable z means that the graphed functions now represent planes, rather than lines. the substitution method involves solving for one of the variables in one of the equations, and plugging that into the rest of the equations to reduce the system.
It means that the government, instead of free market, determines what is sold and how much it costs.