Factorise each of the following expressions
a) x2 + 5x + 6
d) z2 + 8z + 12

Determine whether the samples are independent or dependent. upper a data set includes the morning and evening temperature for the lasta data set includes the morning and evening temperature for the last 90 days.90 days.

Graph the system: f(x)= 3/x-2; f(x)= 1/2x + 2

The speed of a falling object increases at a constant rate as time increases since the object was dropped. which graph could represent the relationship betweent time in seconds, and s, speed in meters per second? speed of a falling object object over time