[tex] \sqrt{x} \leq 5[/tex]
Find the real region for [tex] \sqrt{x} [/tex]
[tex] \sqrt{x} [/tex] is real for [tex]x \geq 0[/tex]
[tex]= x \geq 0[/tex]
[tex] \sqrt{x} \leq 5[/tex]
Square both sides:
[tex]( \sqrt{x} )^2 \leq 5^2[/tex]
[tex]5^2 = 5*5 =25[/tex]
Refine:
[tex]x \leq 25[/tex]
Answer D
hope this helps!
