cho ba đường thẳng d1) 2y+x+4=0 d2) x+y+5=0 d3) mx+(2m-1)y-m-14=0 . tìm giá trị của m để ba đường thẳng đã cho đồng qui

Flashback to semester a. are triangles pqr and stu congruent? what is the congruency that proves they are congruent? what is the perimeter of triangle pqr? show your work.

Bradley hikes 12 miles in 3 hours. in relation to bradley’s hike, which statement describes the expression

Anew shopping mall is gaining in popularity. every day since it opened, the number of shoppers is 5% more than the number of shoppers the day before. the total number of shoppers over the first 10 days is 1258 how many shoppers were on the first day?