Answer:
Definitely B
Step-by-step explanation:
the pythagorean theorem is a^2+b^2=c^2
You have a and c already, so its 5^2+b^2=13^2
13^2 equals 169. 5^2 equals 25.
You now have 25+b^2=169
169-25=144
The square root of 144 is 12.
The other leg is 12 units
<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).
