Use the matrix tool to solve the system of equations. Choose the correct ordered pair.3x - 8y = -1 -2x + 6y = 1 A.(1, 1/2) B.(1/2, 3) C.(1/2, 1) D.(3,1/2)

Question

27-07-2016
Mathematics

contestada

Use the matrix tool to solve the system of equations. Choose the correct ordered pair.3x - 8y = -1 -2x + 6y = 1 A.(1, 1/2) B.(1/2, 3) C.(1/2, 1) D.(3,1/2)

Respuesta :

Otras preguntas

A refinery has 250 tons of CPO on hand. This will be held over the following three months. He aims to hedge against a drop in CPO prices, which might result in

Which of the following is correct? The higher the coupon rate of a bond, the greater its price sensitivity to changes in interest rates. The lower the yield of

find a solution to the initial value problem y′ sin(t)y=g(t), y(0)=3, that is continuous on the interval [0,2π] where g(t)={sin(t)−sin(t)if 0≤t≤π,if π

Nyatakan pelabuhan -pelabuhan kerajaan alam melayu?9markah

Vincent Fabron Automobiles distributes automobile parts to service stations and repair shops. The business is owned and managed by Vincent Fabron who started th

the use of an eximer laser to sculpt the cornea is called:

The figure (Figure 1) shows four sides of a 4.5 cm times 4.5 cm times 4.5 cm cube. What is the electric fluxe Phi 1 through side 1? What is the electric fluxe P

A plane wave in air with ⃗E i (x, z) = 20e −j(3x+4z) ⃗ey V/m s incident upon the planar surface of a dielectric material, with εr = 4, occupying the half-space

A Gallup poll conducted in November 2010 found that 493 of 1050 adult Americans believe it is the responsibility of the federal government to make sure all Amer

NO LINKS!! URGENT HELP PLEASE!!! Solve each continuous exponential growth problem. 24. A savings account balance is compounded continuously. If the interest rat

dalendrk dalendrk · Answer 1 · 2016-07-27T19:56:09+02:00

[tex]\left\{\begin{array}{ccc}3x-8y=-1\\-2x+6y=1\end{array}\right\\\begin{array}{ccc}(i)\\(ii)\end{array}\left[\begin{array}{ccc}3&-8\\-2&6\end{array}\right\left|\begin{array}{ccc}-1\\1\end{array}\right]\xrightarrow{(i):3}\left[\begin{array}{ccc}1&-\frac{8}{3}\\-2&6\end{array}\right\left|\begin{array}{ccc}-\frac{1}{3}\\1\end{array}\right]\xrightarrow{(ii)+2(i)}[/tex]
[tex]\left[\begin{array}{ccc}1&-\frac{8}{3}\\0&\frac{2}{3}\end{array}\right\left|\begin{array}{ccc}-\frac{1}{3}\\\frac{1}{3}\end{array}\right]\xrightarrow{(ii)\cdot\frac{3}{2}}\\\left[\begin{array}{ccc}1&-\frac{8}{3}\\0&1\end{array}\right\left|\begin{array}{ccc}-\frac{1}{3}\\\frac{1}{2}\end{array}\right]\xrightarrow{(i)+(ii)\cdot\frac{8}{3}}\\\left[\begin{array}{ccc}1&0\\0&1\end{array}\right\left|\begin{array}{ccc}1\\\frac{1}{2}\end{array}\right][/tex]

[tex]Answer:\boxed{ \left \{ {{x=1} \atop {y=\frac{1}{2}}} \right.\to\fbox{A.}}[/tex]