Miranda is adding the numbers below. 2.9 times 10^10 + 5.35 times 10^10 what is the sum written in scientific notation?
a. 8.25 times 10^10

b. 8.25 times 10^20

c. 82.5 times 10^11

d. 82.5 times 10^-11

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?