What is the sum of the first eight terms of a geometric series whose first term is 3 and whose common ratio is ?

I think your answer would be 36

28

Step-by-step explanation:

answer rather than having to add and subtract the measurements of the semi-circle, notice that the semicircle to the left of ad is actually identical in area to the blank semicircle-shaped space to the left of bc. so if we transferred the red semicircle into the blank space, we would end up with a square of side length 24 cm. the area of a square is s^2 = 24^2 = 676 cm^2.

u also answered this so i think u would know but i am here to

put in or use mine

yes the total will be same because in both of them the expression.is rearranged but their sign remains the same hence it hss just been shuffled