I guess you are asking to find the sum of the first 8 terms. If so, then:
Sum = a₁(1-rⁿ)/(1-r), where a₁ is the 1st term, r=common ratio and n=number of terms:
the 1st term a₁ =3
common ratio r = - 2 (since -6/3 = - 2, and 12/-6 = - 2, etc.)
Sum = 3[(1- (-2)⁸]/(1-2) = 3(1- 256)/(1/2)
Sum = -1530
(10x5)+(10x14)+(10x-3)
50+140-30
160
Answer:
Its 4.54 cm
Step-by-step explanation:
on Edge
Locate the points using grid paper, you will see that AB is 4, BC is 5, and AC=√(5²+4²)=√41≈6.4
Six hundred, eighty thousand, seven hundred and five
