WebJun 25, 2024 · 7x-2y/xy=5 ; 8x+7y/xy=15 Solve the simultaneous equation See answers Advertisement Advertisement abhi178 abhi178 (7x - 2y)/xy = 5 and (8x + 7y)/xy = 15 (7x - 2y)/xy = 5 ... and 7 with equation (1) and then add. 7(7/y - 2/x) + 2(8/y + 7/y) = 7 × 5 + 2 × 15 => 49/y -14/x + 16/y + 14/y = 35 + 30 => 65/y = 65 => y = 65/65 = 1 Webto solve this we first solve for the area of the photograph. to solve the area we use the formula width × length. 15cm × 5cm = 75cm^2. why did it become squared u asked? when multiplying 2 like variables their exponents just add. now that we solved the area of the photograph we then solve for the area of the cardboard. 21cm × 8cm = 168cm^2
Simultaneous Equations - PMT
WebCompleting the square method is a technique for find the solutions of a quadratic equation of the form ax^2 + bx + c = 0. This method involves completing the square of the quadratic expression to the form (x + d)^2 = e, where d and e are constants. WebQuestion: Use the Laplace transform to solve the following initial value problem: y'' + 9y = 0, y (0) = 6, y' (0) = 3 (1) First, using Y for the Laplace transform of y (t), Le. Y = L (y (t)), find the equation you get by taking the Laplace transform of the differential equation to obtain =0 (2) Next solve for Y = (3) Finally apply the inverse ... photo billy joel
Solved Example Problems for Regression Analysis - Maths
WebHello. In this problem we have a sample of gas that occupies a volume of 4.13 leaders at a temperature of 20°C and The mass of this sample is equal to 55 g And it's kept at the pressure of 10 atmospheric pressures. So the question here is to determine What is this gas? So here we know that the equation of gases is PV equals N R T. WebFor example, enter 3x+2=14 into the text box to get a step-by-step explanation of how to solve 3x+2=14. Try this example now! » ... Read the full tutorial to learn how to graph … Web2.2 Solving x2-10x+29 = 0 by Completing The Square . Subtract 29 from both side of the equation : x2-10x = -29. Now the clever bit: Take the coefficient of x , which is 10 , divide by two, giving 5 , and finally square it giving 25. Add 25 to both sides of the equation : On the right hand side we have : how does being happy affect your brain