what is the distance between the coordinates (-9,5)and (-4,2)? round your answer to the nearest tenth apex

3-12. write each answer with a reasonable number of figures. find the absolute uncertainty and percent relative uncertainty for each answer. (a) [12.41 (±0.09) + 4.16 (±0.01)] x 7.068 2 (±0.000 4) =? (b) [3.26 (±0.10) x 8.47 (±0.05)] - 0.18 (±0.06) =? (c) 6.843 (±0.008) x 104 + [2.09 (±0.04)- 1.63 (±0.01)] =?

Which equation results from adding the equations in this system? x+6y=9 and -x+2y=-15

Consider that lines b and c are parallel. what is the value of x? what is the measure of the smaller angle?