Đội ngũ lao động thương mại luôn có sự biến động về số lượng và cơ cấu cho ví dụ

Im gonna fail 7th grade selective breeding 1. creates offspring which are genetically identical to the parent 2. is the process of breeding only organisms with desirable traits 3. involves the removal of the nucleus of a cell 4. combines traits from organisms of different species

Graph y ≥ -x^2 - 1. click on the graph until the correct graph appears.

Find the length of the normal and the angle it makes with the positive x-axis. (see pictured below)