2 .
3(x - 3)
2x + 5
4x - 1
Diagram NOT accurately drawn
The lengths, in cm, of the sides of the triangle are 3(x - 3), 4x - 1 and 2x + 5
(a)
Write down, in terms of x, an expression for the perimeter of the triangle.

The mean finish time was 185.52 with a standard deviation of 0.327 minute. the winning car driven by chris finished in 185.13. the previous year race had a mean finish time of 110.3 with a standard deviation of 0.106. the winning car that year driven by karen finished in 110.13 minutes. find their respective z-scores. chris - z-score karen “- z-score