What are the domain and range of the relation given in the table? х 10,15,19,32 y 5,9,-1,5
O domain: {10, 15, 19, 32} range: {-1, 5, 9}
O domain: {-1, 5, 9} range: {10, 15, 19, 32}
O domain: {10, 15, 19, 32} range: {y|y € R}
domain: {22 € R} range: {-1,5,9]

Asequence {an} is defined recursively, with a1 = 1, a2 = 2 and, for n > 2, an = an-1 an-2 . find the term a241

1- is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis. 2- what do you think the product of a nonzero rational number and an irrational number is? is it rational or irrational? make use of variables, the closure property of integers, and possibly a proof by contradiction to prove your hypothesis. 3- why do we have to specify that the rational number must be nonzero when we determine what the product of a nonzero rational number and an irrational number is? if the rational number were 0, would it give us the same result we found in part b?

Simplify. 4+3/7x-2-2/7x a. 2-5/7x b. 6-1/7x c. 2+1/7x d. 6+5/7x