A'\) means all the elements not in set A. Four numbers have a mean of 20. A fifth number is added to the set and the mean is now 19. What number was added to the set? (3 marks) The four numbers have a ...

Show the inequality \(y \textless 2\) on a number line. \(y\) is less than (<) 2, which means an open circle at 2 must be used. \(y\) is less than 2, so an arrow below the values of 2 must be ...

The South African education landscape has undergone a quiet revolution recently. What was once considered an "alternative" to traditional brick-and-mortar schooling, online learning, homeschooling, ...

If your number pad isn’t working even with NumLock on, don’t worry. There are a few simple fixes you can try. Whether it’s a stuck key, settings issue, or outdated drivers, we’ll show you how to fix ...