12 of 36 can be written as:
(12/36 ) x 100 =33.33%
Commutative property means the order doesn’t matter: 𝐴 ∗ 𝐵 = 𝐵 ∗ 𝐴.
Union ∪ is commutative, so 𝐴 ∪ 𝐵 = 𝐵 ∪ 𝐴.
Prime factors:
• 36 = 2² × 3²
• 54 = 2 × 3³
• 360 = 2³ × 3² × 5
Common prime factors are 2 × 3² = 18.
A matrix A is symmetric if its transpose equals itself, i.e., A^T = A.
This means the elements are mirrored across the main diagonal.
The given solution is already solved:
5x + 8 = 23
5x = 23 - 8
5x = 15
x = 15/5
x = 3
The number 1 is called the multiplicative identity because multiplying any real number a by 1 leaves it unchanged: a × 1 = 1 × a = a.
This property holds for all real numbers (∀ a ∈ R).
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