Irene is training for the 200-meter dash. Yesterday she ran the dash in 31 37/100 seconds. Her goal is to run the dash in 28 1/10 seconds. By how many seconds must Irene reduce her time in order to reach her goal?
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3 27/100

Step-by-step explanation:

set up an equation

31 37/100-a= 28 1/10

                a= 3 27/100

ñplokuhtgfedij

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