By rename do you mean turn into an improper fraction?
if so, it is because without turning it into an improper fraction, you cannot subtract 3/4 from 1/4 because you would get a negative answer and that would be incorrect
TRUE i just took the test and it was correct
<span>A point of intersection of three or more edges is a vertex. A polyhedron with two faces (bases) that are congruent and parallel polygons and whose other faces (lateral faces) are parallelograms formed by segments (lateral edges) connecting the corresponding vertices of the bases.</span>
Answer:
Metal that has not yet been refined.
Explanation:
The mining companies are companies that are involved in the extraction of natural resources from the crust. They can operate on land or in water. The extraction of natural resources involves numerous things, such as oil, natural gas, and metals.
When it comes to the extraction of metals, the term that is used is ore. Ore refers to the metal that has still not been refined, or rather it is in its natural form and is not useable without manufacturing it. The extraction of ore is among the biggest businesses in the world, and many countries in the world have it as the number one or one of the top economic contributors.