alpha definition in math
the second letter of the Greek alphabet (β, B). 2. the consonant sound represented by this letter. 3. (initial capital letter) Astronomy. a star that is usually the second brightest of a constellation: Algebra uses letters (like x or y) or other symbols in place of values, and plays with them using special rules. Example: x + 3 = 7. x is unknown (often called the variable). In this case the value of x can be found by subtracting 3 from both sides of the equal sign like this: Start with: x + 3 = 7. Subtract 3 from both sides: x + 3 − 3 = 7 − 3. Calculate: x + 0 = 4. Definition of Proportion. A proportion is an equation written in the form stating that two ratios are equivalent. In other words, two sets of numbers are proportional if one set is a constant times the other. Solved Example on Proportion. Ques: A cardboard model of a Honda bike is part of an outdoor display. Its height is 4 ft. The actual Honda bike is 5 ft long and 2 ft high. Find the length of the model, if its dimensions are proportionate to the real bike. Step 1: Let n be the length of Honda bike cardboard model. Step 2: [Write a proportion.] Step 3: n × 2 = 4 × 5 [Write the cross products.] Step 4: n = 10 [Simplify the expression.] Step 5: The length of the Honda bike cardboard model is 10 ft. Also find the definition and meaning for various math words from this math dictionary. ↳. 1  Math Dictionary. ↳. 2  B. ↳.  Beta. n. 1  Symbol β The second letter of the Greek alphabet. 2  The second item in a series or system of classification. 3  A beta particle.  A beta ray. exists and is an alternate of . Answer by Kt 1234. Confidence votes 105. Normally, alpha is used to represent an angle. Just like x is used to represent an unknown number or angle, alpha, theta, beta are used to represent unkown angles. 9 people found this useful. Symbol β The second letter of the Greek alphabet. The second item in a series or system of classification. A beta particle. A beta ray. Greek letters used in mathematics, science, and engineering. Greek letters are used in mathematics, science, engineering, and other areas where mathematical notation is used as symbols for constants, special functions, and also conventionally for variables representing certain quantities. In these contexts, the capital letters and the small letters represent distinct and unrelated entities.
It is used to represent an angle.