quadratic equation
... where a, b, and c are real numbers with a 0. A quadratic equation in x is also called a second-degree polynomial equation in x. In this section, you will study four methods for solving quadratic equations: factoring, extracting square roots, completing the square, and the Quadratic Formula. ...
... where a, b, and c are real numbers with a 0. A quadratic equation in x is also called a second-degree polynomial equation in x. In this section, you will study four methods for solving quadratic equations: factoring, extracting square roots, completing the square, and the Quadratic Formula. ...
Solving Multi-Step Equations 1.2
... Thursday. You are asked to find the number of miles you need to bike on Friday so that the mean number of miles biked per day is 5. 22. Make a Plan Use the definition of mean to write an equation that represents the problem. Then solve the equation. 33. Solve the Problem The mean of a data set is th ...
... Thursday. You are asked to find the number of miles you need to bike on Friday so that the mean number of miles biked per day is 5. 22. Make a Plan Use the definition of mean to write an equation that represents the problem. Then solve the equation. 33. Solve the Problem The mean of a data set is th ...
BKL singularity
A BKL (Belinsky–Khalatnikov–Lifshitz) singularity is a model of the dynamic evolution of the Universe near the initial singularity, described by an anisotropic, homogeneous, chaotic solution to Einstein's field equations of gravitation. According to this model, the Universe is oscillating (expanding and contracting) around a singular point (singularity) in which time and space become equal to zero. This singularity is physically real in the sense that it is a necessary property of the solution, and will appear also in the exact solution of those equations. The singularity is not artificially created by the assumptions and simplifications made by the other well-known special solutions such as the Friedmann–Lemaître–Robertson–Walker, quasi-isotropic, and Kasner solutions.The Mixmaster universe is a solution to general relativity that exhibits properties similar to those discussed by BKL.