Find the directional derivative of the function at the given point in the direction of the vector v. f(x, y, z) = x2y + y2z, (2, 7, 9), v = 2, −1, 2 duf(2, 7, 9) =

Asequence is defined recursively using the formula f(n + 1) =f(n) - 5. which sequence could be

2,10,-50 next two numbers geometric sequence

Plzz ! if you were constructing a triangular frame, and you had wood in the length of 4 inches, 4 inches, and 7 inches, would it make a triangle? would you be able to create a frame from these pieces of wood? yes or no? = explain your mathematical thinking/show your work: