a type of mathematics that uses letters and symbols in place of numbers a short tube joined to the intestine; extra information at the end of a book about; not exact but close to state firmly or confidently the power to make independent decisions the ability to do something in a satisfactory or effective way a speech sound; any letter in the alphabet that is not a vowel. to limit; to force someone to do something they don't want to do to come together to see or show a difference between things separate; composed of distinct parts how well something works morally right or wrong the development of a plan, system, or proposal not affected by something, such as a disease a mass of abnormal cells that develops when cancerous cells divide and grow uncontrollably being useful; a public service such as gas, water, or electricity that is used by everyone sound; just; well-founded how true something is a line going up/down; not horizontal