Question

b. (-100) ÷ [(-4 + 2)] is equals to [(-100) ÷ (-4)]
[(-100) ÷ 2]​

Answer 1

Step-by-step explanation:

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One way to describe the concentration of a solution is by the percent of a solute in the solvent. The percent can further be determined in one of two ways: (1) the ratio of the mass of the solute divided by the mass of the solution or (2) the ratio of the volume of the solute divided by the volume of the solution.....

Answer 2

Answer:

It is easily checked that if 13=100 , then 87=0 (just subtract 13 from both sides). We have

87=3⋅29=0 .

If it is true that xy=0 implies x=0 or y=0 , then we must have 3=0 or 29=0 . If not, then we could have other, unpleasant possibilities. I would rather not deal with this, so let’s assume we’re working with something having this property