Answer:
(rx)(4) = 8
Step-by-step explanation:
Given that,
[tex]r(x)=2\sqrt{x}[/tex]
and
[tex]s(x)=\sqrt{x}[/tex]
We need to find the value of (rs)(4).
[tex](rs)=2\sqrt x \times \sqrt x\\\\=2\times (\sqrt x)^2\\\\=2x[/tex]
[tex](rs)=2x\\\\=2\times 4\\\\=8[/tex]
So, the value of (rx)(4) is equal to 8.
