20/14
30/21
40/28
50/35
60/42
70/49
80/56
90/63
100/70
etc
hope this helps
540 divided by 4 is 135 so C
U(x)=-2x²+3
v(x)=1/x →→ range of (uоv)(x, BUT range (uov)(x = u(v(x)), then :
u(v(x)) = -2(1/x²) + 3 →→u(v(x)) = -2/x² + 3
The range of -2/x² + 3 = {x∈R/x≠0}
We can’t see the indicate values, but for a general answer, the first will be better AS LONG AS Y IS A POSITIVE. The second answer will be better if Y is a negative. Hope this helps.
Answer:
fr, domain is all of the x values lol