A forest has a large number of tall trees. The heights of the trees are normally distributed with a mean of 78 metres and a standard deviation of 9 metres. Sketch and label a normal curve that represents the heights of trees.

Each vertical line is a standard deviation, which is given as 9 meters. The middle line would be the mean, which is given as 78 meters.

See attached picture:

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hope this : )

step-by-step explanation:

for this pair of functions g(x)=x-2 and f(x)=|x| is (g o f)(a)= |a| -2

step-by-step explanation:

g(x)=x-2

f(x)=|x|

(g o f)(a)=?

(g o f)(x)=g(f(x))

(g o f)(x)=g(|x|)

(g o f)(x)=|x|-2

(g o f)(a)=|a|-2