Vector cc has a magnitude of 21.021.0 m and points in the −y‑−y‑ direction. vectors aa and bb both have positive y‑y‑ components, and make angles of α=43.4°α=43.4° and β=27.7°β=27.7° with the positive and negative x-x- axis, respectively. if the vector sum a+b+c=0a+b+c=0 , what are the magnitudes of aa and b?

Four congruent circular holes with a diameter of 2 in. were punches out of a piece of paper. what is the area of the paper that is left ? use 3.14 for pi

Suppose you are an avid reader and are looking to save money on the cost of books instead of paying about $20 for each book, you decide to look into purchasing a kindle for $120 you can purchase e-books for about $5 each 1. find the slope-intercept equation for the cost of the hard copy of books using x to represent the number of books 2. find the slope-intercept equation for the cost of the kindle with cost of e-books using x to represent the number of books

Mackenzie needs to determine whether the rectangles are proportional. which process could she use? check all that apply.