## Algebra and Trigonometry 10th Edition

$x \gt 0\\y \gt x \\ \pi y^2 \gt \pi x^2+10$.
The radius of the smaller circle is positive; this means that $x \gt 0$ The radius $y$ is for the larger circle; this means that $y \gt x$ The area of the larger circle is at least $10 \ sq \ unit$ greater; this means that $\pi y^2 \gt \pi x^2+10$. Thus, the system is: $x \gt 0\\y \gt x \\ \pi y^2 \gt \pi x^2+10$.