Show that the vector field f(x, y,z)=⟨ycos(−2x),−2xsin(y),0⟩f(x, y,z)=⟨ycos⁡(−2x),−2xsin⁡(y),0⟩ is not a gradient vector field by computing its curl. how does this show what you intended?

Write the rational number in lowest terms 99/-15

An account with a $250 balance accrues 2% annually. if no deposits or withdrawals are made, which graph can be used to determine approximately how many years will it take for the balance to be $282? it's e2020 ni️️as

I’m confused on how to work the pie charts