Write the first five terms of the geometric sequence with a1=-2 and common ratio r=-5/2

option D

Step-by-step explanation:

First term is -2

common ratio = -5/2

To get second term we multiply first term -2  by common ratio -5/2

To get third term we multiply second term 5  by common ratio -5/2

To get fourth term we multiply third term -25/2  by common ratio -5/2

Option D is correct

step-by-step explanation:

∆abc has the points a(1, 7), b(-2, 2), and c(4, 2) as its vertices. formed with the point d(1, 2) as its third vertex, then ∆abd is triangle.

i got 10.28 but that rounds up to 10.3