Natural numbers are not closed under subtraction. While subtracting a smaller number from a larger one works, subtracting a larger number from a smaller one, like 3 minus 5, results in a negative value.
Discussion Forum Latest Questions
The listed numbers are all prime numbers, meaning they have no factors other than 1 and themselves. Following this mathematical pattern, the next three consecutive prime numbers are 23, 29, and 31.
A polynomial of degree 1 can be 3x plus 2. A polynomial of degree 2 can be x square plus 5x plus 1. A polynomial of degree 3 can be 2x cube minus x plus 4.
If the length of the rectangle is x cm, then the width becomes 10 minus x cm because the total perimeter is 20 cm. Therefore, the area of the rectangle is x multiplied by 10 minus x.
The total cost of decorating the garden is found by adding fencing and seed costs. Wire fencing costs 200l rupees, wooden fencing costs 160w rupees and seeds cost 50lw rupees. Therefore, total cost equals 200l + 160w + 50lw.