Posts Tagged ‘difference’

Explain how to find the first and second differences for the following sequence?

The sequence is 11, 14, 19, 26, 35, 46,… I understand that the difference is 3, then 5, then 7, then 9, then eleven, but I’m confused because it’s not a constant rate of change. I also don’t understand what the question means by ” first and second differences”. Can anyone help me? Thanks! Chosen [...]

What is the difference in grammar between “eleven years old, and eleven-year-old? please?

for example:- 1-He is eleven years old. 2- He is eleven-year-old. Chosen Answer: Number two is gramatically incorrect. Eleven refers to more than one, therefore year should be in it’s plural form. by: Stephen Returns on: 6th December 10