Quadrilateral ABCD has vertices at A(-2,1) , B(7,7) , C(3,-1) , and D(-6,-7) . a) Prove that ABCD is a parallelogram.

b) Prove that the diagonals of ABCD are not perpendicular.

160

step-by-step explanation:

idk

i hope i

if you are saying purchasing 3 social media ads and one newspaper ad counts as one purchase then there are:

6 purchases

if you are asking how many of each then:

18 social media ads

6 newspaper ads

6/20

step-by-step explanation:

= 5

step-by-step explanation:

to find the 15th term substitute n = 15 into the nth term formula

= (- 3 × 15 ) + 50 = - 45 + 50 = 5