Rewrite f(x) = 2(x − 1)2 + 3 vertex form to standard form

List the 10 possible samples (without replacement) of size 3 3 that can be obtained from the population of five officials.

Find two rational expressions that have the difference of 2-n/n-4

White shapes and black shapes are used in a game. some of the shapes are circles. while the rest are squares. the ratio of the number of white shapes to the number of black shapes is 5: 11. the ratio of the number of white cicrles to the number of white squares is 3: 7. the ratio of the number of black circles to the number of black squres is 3: 8. work out what fraction of all the shapes are circles.