Find S3of the sum of the geometric series. a1=48,a3=12,r=1/−2 Group of answer choices

A. 34

B. 19

C. 63

D. 27

None of these are correct.

b) k’(6, 4); l’(3, 3)

step-by-step explanation:

a 270° clockwise rotation maps every point (x, y) to (y, -x). (it negates the x-coordinate and then switches it and the y-coordinate.)

this means the endpoints of the side congruent to kl, k' and l', would be mapped as:

k'(-4, 6)→(6, 4)

l'(-3, 3)→(3, 3)