Confirm that the following properties of the greatest common divisor hold: (a) if ged(a, b) = 1 and cla, then ged(b, c) = 1. (b) if ged(a, b) = 1, then god(ac, b) = ged(c, b). (c) if ged(a, b) = 1 and c(a+b), then god(a, c) = ged(b, c) = 1.

What is the length of the segment, endpoints of which are intersections of parabolas y=x2? 11 4 x? 7 4 and y=? 7 8 x2+x+ 31 8 ?

The construction of copying qpr is started below. the next step is to set the width of the compass to the length of ab. how does this step ensure that a new angle will be congruent to the original angle? by using compass take the measures of angle and draw the same arc according to it.

Write the component forms of vectors u and v, shown in the graph, and find v − 2u. u= (< -3, -2> , < -3, -1> , < -2, -2> , < -2, -1> ) v= (< -5, 1> , -4, 0> , < 0, -4> , < 1, -5> ) v-2u= (< 5, 3> , < 0, 4> , < 4, 0> , < 5, -3>