Question

Find which of the variables x, y, z and u represent rational numbers and which irrational numbers: a. x sq=5 b. sq=9 c. z sq=.04 d. u sq=17/4​

Answer 1

Answer:

a. x^2=5

x=+-root 5 (irrational)

b. x=-+3(rational)

c. z=z=+-0.2(rational)

d. u=+-root17/2(irrational)