-r
Step by step:
7r+(-8)
7r+(-8r)
-r
There are several expanded forms for a decimal number. Pick the one that matches your requirements.
64,375 = 60,000 +4,000 +300 +70 +5
64,375 = 6×10,000 +4×1,000 +3×100 +7×10 +5×1
64,375 = 6×10⁴ +4×10³ +3×10² +7×10¹ +5×10⁰
<h3>
Answer: C) integers and rational numbers</h3>
Explanation:
The set of integers is {..., -3, -2, -1, 0, 1, 2, 3, ...} basically any number that does not have a decimal or fractional part to it. We can say that this set is composed of positive and negative whole numbers along with 0. So this is why -3 is in the set of integers.
The value -3 is not in the set of whole numbers because the set of whole numbers is {0, 1, 2, 3, 4, 5, 6, ...}, so this rules out choice D.
Choice B is also eliminated because -3 is a rational number. We can write -3 as a fraction of two integers, example: -3 = -3/1. Any rational number is not irrational, and vice versa.
Choice A is ruled out because it's not the most complete answer (though its technically true).
