I would say that you would only use them when you are writing in the thousands or more other than that u don't use them
technology means all techniques, skills, methods or procedures related to the production of products and services. or to be used to achieve one of the objectives and home economics is a subject concerning human development, personal and family finance, housing and interior design, food science and preparation, nutrition and wellness, textiles and apparel, and consumer issues.
The first one makes more sense and uses the semicolon properly.