2. Solve the following system of equations
x+y+z=4
x − 2y − z = 1
2x − y − 2z = −1

Select the appropriate response:
A) x =3, y = −3, z = 3
B) x = 2, y = −1, z = 3
C) x = 2, y = −21, z = 3
D) None of the above

Help please!

Answer: d. 39 cmin the diagram, the approximate length of the minor arc de is 39 centimetres.step-by-step explanation: the formula for the length of an arc in a circle is as displayed below.let the length of the minor arc de = xx = 2( pi )r × angle of sector / 360°from this, we will substitute the values given from the problem into the formula to obtain the length of the minor arc de.x = 2( pi )r × angle of sector / 360°r = radius = 25cmpi as an approximate value = 3.14angle of sector = 120°x = 2( 3.14 )( 25 ) × 120° / 360°x = 157 × 1 / 4x = 39.25x = 39 ( rounded to the nearest whole number as an approximate value )