Convert the rectangular coordinates (v3 1) into polar coordinates ( 6) so that o and (i) (2 ) o (2 (m) (2 1 (iv) (2 ) (-2블) suppose a linear system of three equatione in three variables is being solved by making use of elementary row operations and we arrive at the tollowing matrix what does it mean? () that (t. r,0).er is a solution. (ii) that 〔t, t, r) , t. r e r is a solution. (ii) that it -2.1 -1,t.)te risa solution. iv) the original system of equation has no solution v) none of the above

1. 180°. the sum of the interior angles of a triangle is 180°, for the equilateral triangle that it has three equals side is 60°+60°+60°=180°.

2. 60°. each interior angle of a equilateral triangle is 60°

3. 120°. the measure of ∠m is 120°, the sum of the angles ∠m and ∠n is equal to 180°. so, in order to find the measure of ∠m, we have ∠m+∠n=180° > ∠m=180°-∠n > ∠m=180°-60°=120°.

4. 360°. the sum of the exterior angles of an equilateral triangle is ∠m+∠r+∠x=120°+120°+120°=360°. the exterior angles of any triangle always add 360°.

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point form: (-3,-1)

equation form: x=-3 y=-1

step-by-step explanation: