How many significant figures are there in the number 37,460,000?

Explanation

Binary operation combines two elements to give one result. Addition, multiplication are examples. Custom operations defined by rule, e.g., a * b = a + b – 2ab. To evaluate: substitute values into rule.

Properties: closure (result is same type), associativity (a*(b*c) = (a*b)*c), identity element (a*e = a), inverse element (a*a⁻¹ = e), commutativity (a*b = b*a). Not all operations have all properties.

Example: If a * b = a² + b², find 2 * 3. Solution: 2² + 3² = 4 + 9 = 13. Always apply the given rule precisely.