Answer:
irrational if it's more after this number but if it stops at the last 9 then it's a rational number
hope this helps
have a good day :)
Step-by-step explanation:
To perform this check, you must use the following theorem:
is a lower bound for the zeroes of
if, when divide
by
, the quotient and the remainter alternate signs.
Since the long division yields the result

You can see that the signs don't alternate (the last two terms are positive). So, -1 is not a lower bound.
In fact, the actual roots of the polynomial are -3, -2, 1, 3, so as you can see there are roots smaller than -1.
Divide
7/12 = <span>.583
We get answer: </span><span>D. .583</span>