Which statements about this system of equations are true? Check all that apply 2 x minus 7 y = negative 13. Negative 2 x + 11 y = 1. The x-variable will be eliminated when adding the system of equations. The y-variable will be eliminated when adding the system of equations. The sum of the system of equations is 4 y = negative 12. x = 17 y = negative 3 There are infinitely many solutions to the system of equations.

• The x-variable will be eliminated when adding the system of equations.

• The sum of the system of equations is 4y = -12

Step-by-step explanation:

2x - 7y = -13

-2x + 11y = 1

Adding the equations

4y = -12

y = -3

x = -17

• The x-variable will be eliminated when adding the system of equations.

• The sum of the system of equations is 4y = -12

The correct answer is A and C

Step-by-step explanation:

I took the test and got 100%

answer: 180

step-by-step explanation:

12-2=10

20-2=18

10x18=180

intensity of the vector is v= √37 ≈ 6.08 units and make angle ∡α ≈ 9.46° with east direction

step-by-step explanation:

required vector is consists of the two componentsvx= 2+4=6 units   and vy= 1 unit and vx ⊥ vywe will use pythagorian theorem to find intensity of the vector vv∧2 = vx∧2 + vy∧2 => v = √vx∧2 + vy∧2 = √6∧2 + 1∧2 = √36+1 = √37 ≈ 6.08 unitsthe angle ∡α between vector and east direction we wil find with tanαtanα = 1/6 => α = arc tanα = arc 1/6 => α ≈ 9.46°

hope this