ok imma help u just it should not be chem
Add 26 and 73 = 99 then divide 99 by 6 = 16.5 which is 17 vases
Use the chain rule.
Let u = 25sin²(x), such that dy/dx = dy/du · du/dx


2x - y = 0
2x = y
3x - 2(2x) = -3
3x - 4x = -3
-x = -3
x = 3
2(3) = y
6 = y