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What is the main disadvantage to graphing a system of equations?
The required solution may not be within the range that is plotted, and you would have to start all over again.
What is the solution to the rational equation x over 5 plus 4 over 5 7?
Without an equality sign the given terms can't be considered to be an equation and so therefore there is no solution.
How do you work out maths equations?
The answer depends on the nature of the equation. Mathematicians are still not able to solve the Navier-Stokes equations, for example. In fact there is a million dollar (US) prize if you can figure out a general solution. The equations are not simply mathematical contrivances to create a challenge: they deal with fluid flow and are used for studying the flow of liquids inside a pipe, or air-flow over a plane's wings and so on.
What is x over 3 minus y over 4 equals 0 and x over 2 plus 3y over 10 equals 5.4 solved simultaneously?
Equations: x/3 -y/4 = 0 and x/2 +3y/10 = 5.4 Multiply all terms in the 1st equation by 12 and all terms in the 2nd equations by 10 So: 4x -3y = 0 and 5x +3y = 54 Add both equations together: 9x = 54 => x = 6 Solution solved by substitution: x = 6 and y = 8
How do you find the quadratic equation if only given the solution?
Given a solution eg x = 3 or -5 form factors: (x - 3)(x + 5) Multiply out : x2 + 2x - 15 = 0 If one of the solutions is not an integer eg x = 4.5, which is 9 over 2, then one of the factors will be 2x - 9.
