Determine whether or not f is a gradient vector field. if it is, find a function φ such that f = ∇φ. (if the vector field is not a gradient field, enter dne.) f(x, y) = (2x − 6y) i + (−6x + 10y − 7) j

I’m on question 7 it says a covered water tank is in the shape of a cylinder the tank has a 28 inch diameter and a height of 66 inches to the nearest square inch what is the surface area of the water tank

Write as a product of two polynomials. 2(3–b)+5(b–3)^2

Consider the linear function that is represented by the equation y= 4x+5