Q. 20 find the smallest number which becomes a
perfect square when multiplied by 128
Answers
Answered by
0
Answer:
Sulfuric acid is sometimes referred to as the “king of chemicals” because it is produced worldwide in such large quantities. In fact, per capita use of sulfuric acid has been taken as one index of the technical development of a country. Annual production in the United States, which is the world’s leading producer, is well over 39 billion kg (86 billion pounds). It is the cheapest bulk acid.
Answered by
0
Answer:
128÷2=64=23×23=43 128 ÷ 2 = 64 = 2 3 × 2 3 = 4 3 is a perfect cube. Hence the smallest number by which 128 should be divided to make a perfect cube is 2 . Here, the prime factors 5 is not present as triples. Hence, we divide 135 by 5, so that the obtained number becomes a perfect cube.
Similar questions