a. Find vectors nį and n2 that are normals to II and IL respectively and explain how you can tell without performing any extra calculations that Ilj and IL must intersect in a line. b. Find Cartesian equations for Пр and c. For your first method, assign one of *2 or x3 to be the parameter o and then use your two Cartesian equations for п аnd IL to express the other two variables in terms of o and hence write down a parametric vector form of the line of intersection L.

if given the equation yi = B0 + B1xi +ui and express the same equation as y = xiB = ui (where xi and B here are vectors), does vector xi = [1 x1] or xi = [x1] (row vector) and B vector (column vector) = [B0; B1]?

I have attached the question in the image upload below. Please refer to the attachments for the question details. Please read the questions carefully and provide correct answers as well as the solutions. I appreciate your help, thank you.

I need you to answer the top question where it says: The vector u = (3180, 2450) gives the numbers of hamburgers and hot dogs, respectively, sold at a fast-food stand in one month. The vector v = (2.25, 1.75) gives the prices (in dollars) of the food items. Find the dot product u v. I have already answered the multiple choice questions, so please dont answer that. thank you