1. Rational/The sum of two rationals is always rational 2. Irrational/ the sum of a rational and an irrational is always irrational 3. Irrational/The product of a nonzero rational and an irrational is always irrational 4. Rational/The product of two rationals is always rational
Pretty much all the irrational numbers are the ones with radical signs over them and the rational numbers are the fractions and whole numbers. Once you identify the two numbers to be rational or irrational, you can then find your answer within the second part of the answers.
This is a normal distribution with a Mean: 14 g/dL and a Standard deviation: 1 g/dL. A ) Hemoglobin levels less than 13: 13 = 14 - 1 = Mean - 1 SD 0.16 x 200 = 32 Answer: 32 people. B ) Hemoglobin levels greater than 14 : 0.50 x 200 = 100 Answer: 100 people.
