Which of these strategies would eliminate a variable in the system of equations? { − x + 6 y = 8 7 x − y = − 2 ⎩ ⎪ ⎪ ⎨ ⎪ ⎪ ⎧ −x+6y=8 7x−y=−2 Choose all answers that apply:

The required solution is  and .

Step-by-step explanation:

Given equations are

-x+6y = -2.......(1)

.......(2)

First we have to equate the coefficient of y or x. Here we equate the coefficient of y . So equation (2) multiply by 6.

Then the equation (2) becomes

........(3)

Since the signs of y are is opposite, so we adding (1) and (2).

Putting the value of equation (1)

The required solution is  and

step-by-step explanation:

here's what happens:

1) the graph of f   = x^2 is shifted 2 units to the right.

2) the resulting graph is reflected in the x-axis, so that the parabola now opens down.

3) this final result is transformed up by 5 units.

v = 1/3 a^2h

step-by-step explanation:

the volume is 1/3 a^2h.