5. If
= x+y-1, then find the second derivative at the point (1, 2).
dx

List the sides of δrst in in ascending order (shortest to longest) if: a ∠r =x+28°, m∠s = 2x+16°, and m∠t = x+12°

The base of a triangle is 8 1 3 meters and the height of the triangle is the fourth root of 16 meters meters. what is the area of the triangle?

Which of the following statements would be sufficient to prove that parallelograms pqrs is a rectangle ?