Solve the system of linear equations by elimination

5х + 6у = 50
x - 6у = - 26

{x,y} = {4,5}

Step-by-step explanation:

// Solve equation [2] for the variable  x

 [2]    x = 6y - 26

// Plug this in for variable  x  in equation [1]

  [1]    5•(6y-26) + 6y = 50

  [1]    36y = 180

// Solve equation [1] for the variable  y

  [1]    36y = 180

  [1]    y = 5

// By now we know this much :

   x = 6y-26

   y = 5

// Use the  y  value to solve for  x

then, the surface area of the sphere shown in the image is: 256π sq. units!

step-by-step explanation:

the lateral surface area of a sphere is 2πrh where h=2r.

then:

surface area = 4πr^2.

in this case, r=8 units ⇒ surface area = 4π(8 units)^2. = 256π sq. units!

then, the surface area of the sphere shown in the image is: 256π sq. units!

1 3 5

step-by-step explanation:

i took the test: )