The table gives information about the lengths of time, in hours, some children spent watching TV last week.
Length of time (7) Frequency
0 8
3
3
10 15
15 10
20 11
2
Frequency density
Draw a histogram for
the information in the table.
1
0+
0
10
30
40
20
Length of time (t)

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?