Final answer:
To evaluate the expression 12÷(2+23)², follow the order of operations: parentheses, exponents, multiplication and division, and addition and subtraction. The final result is approximately 0.0192.
Step-by-step explanation:
To evaluate the expression 12÷(2+23)², we need to follow the order of operations, which is also known as PEMDAS:
Parentheses, Exponents, Multiplication and Division (from left to right), and Addition and Subtraction (from left to right). First, we calculate the value inside the parentheses: 2+23 = 25.
Then, we square it: 25² = 625.
Finally, we divide 12 by 625: 12÷625 ≈ 0.0192.
Learn more about Order of Operations