Answer:
1. b ∈ B 2. ∀ a ∈ N; 2a ∈ Z 3. N ⊂ Z ⊂ Q ⊂ R 4. J ≤ J⁻¹ : J ∈ Z⁻
Step-by-step explanation:
1. Let b be the number and B be the set, so mathematically, it is written as
b ∈ B.
2. Let a be an element of natural number N and 2a be an even number. Since 2a is in the set of integers Z, we write
∀ a ∈ N; 2a ∈ Z
3. Let N represent the set of natural numbers, Z represent the set of integers, Q represent the set of rational numbers, and R represent the set of rational numbers.
Since each set is a subset of the latter set, we write
N ⊂ Z ⊂ Q ⊂ R .
4. Let J be the negative integer which is an element if negative integers. Let the set of negative integers be represented by Z⁻. Since J is less than or equal to its inverse, we write
J ≤ J⁻¹ : J ∈ Z⁻
Answer:
-0.5, negative 1 over 5, 1 over 9, 1
Step-by-step explanation:
Hope this helps! :) please mark me as brainly :)
Step-by-step explanation:
17c because you have to pair the terms
Answer:
20.78460969 = s
Step-by-step explanation:
tan theta = opposite side / adjacent side
tan 60 = s /12
Multiply each side by 12
12 tan 60 = s /12 *12
20.78460969 = s
