What is the acceleration of a bus that decreases its speed from 80 kilometers per hour to 60 kilometers per hour in 5 seconds?

The problem involves calculating the acceleration of a bus that slows down from an initial speed to a lower speed over a specific time frame. Let’s break this down step by step. 1. **Identify Initial and Final Velocities**: The initial speed (u) of the bus is 80 kilometers per hour (km/h), and the final speed … Read more

What is the difference between the polynomials 5x³ + 4x² + 6x² + 2x + 9 and x³ + 6x² + 9 + x³ + 2x² + 5x³ + 2x² + 2x + 9 + 5x³ + 2x² + 2x + 9?

To find the difference between the given polynomials, we first need to simplify each expression individually. 1. **First Polynomial**: 5x³ + 4x² + 6x² + 2x + 9 Combine like terms: 4x² + 6x² = 10x² This gives us: 5x³ + 10x² + 2x + 9 2. **Second Polynomial**: x³ + 6x² + 9 + … Read more