Hello :
f(x) = 3x f-1(x) = x/3
<span>f(f-1(x)) = f(x/3) = 3(x/3) = x
</span><span>f-1(f(x)) = f-1(3x= 3x/3=x</span>
The answer is true hope this helps
Answer:
3 and 6 5and 4
Step-by-step explanation:
Answer:
$21
Step-by-step explanation:
70%=0.7
30*0.7=21
Population size:7
<span>Lower quartile (xL): 34
Median (xm): 49
Upper quartile (xU): 75</span>
