7. A quantity Z varies directly as the square of X and inversely as the square root of YN
if X increases by 20% and y decreases by 36%, find the percentage change in Z
(3 mks)​

12 point are triangles pqr and stu congruent? what is the congruency that proves they are congruent? what is the perimeter of triangle pqr?

Use the discriminant to describe the roots of each equation. then select the best description. 2m2 + 3 = m double root real and rational roots real and irrational roots non-real roots

What is the solution to the system of equations? (–2, –8) (–1, –5) (0, –2) (2, 4)