Top answers


What do 0s and 1s have anything to do with Boolean Logic?

In computers, everything is represented with 0s and 1s. While Boolean Logic is often explained using the terms 'true' and 'false', these are actually represented by the numbers 0 and 1. 0 means 'false' and 1...
LG
Answered by Lauren G. • Computing tutor
3629 Views

How do I factorise x^2 ​- 4?

This is similar to other factorisation problems such as x 2 + 5x - 6. In this problem, you would find prime factors of -6 that add up to 5 (In this case -3, -2). Now, do the exact same with this problem! Thi...
LG
Answered by Lauren G. • Maths tutor
52958 Views

How do I know if a noun is 'der', 'die' or 'das'?

Think of the noun and its gender as a married couple ! You need to learn the gender of a noun at the same time as learning the noun itself. There are also some tricks to knowing whether a noun is 'der', 'die...
FL
Answered by Flora L. • German tutor
4610 Views

What were the peacekeeping powers of the League of Nations in the 1920s?

- moral sanctions economic sanctions military sanctions International Court of Justice disarmament
FM
Answered by Freya M. • History tutor
3635 Views

Rectangle A has a length of 3y cm and a width of 2x cm. Rectangle B has a length of (y + 4)cm and a width of (x + 6)cm. Rectangle A has a perimeter of 94cm and Rectangle B has a perimeter of 56cm. Solve x and y and calculate the areas of each rectangle.

To calculate the perimeter of a shape, you have to add up the lengths of all of its sides. So:A: 3y + 2x + 3y + 2x = 94 ; B: (y + 4) + (x + 6) + (y + 4) +(x + 6) = 56Simplifying both equations give:4x + 6y =...
RA
Answered by Raghav A. • Maths tutor
10470 Views