The sum to infinity of a convergent geometric series with a common ratio r is S. Given that S=200 and the sum of the first 3 terms is 175(a) find the value of r. Given also that Sn/S = 255/256
(b) find the value of n.

33

step-by-step explanation: g=6

you can't solve x because it is 2 linear equation and you only have one equation

27

step-by-step explanation:

d) by the cross product property, ab^2 = bc multiplied by ad

step-by-step explanation:

we are given

in the given triangle abc

angle a is 90° and segment ad is perpendicular to segment bc

we can see that

triangle(abc) and triangle(abd) are similar because they have common side and same angle (90 degree)

so, triangles(abc) and abd are similar

since, they are similar

so, the ratio of their sides must be equal

we get

now, we can cross multiply

and we get

so, this could be step to prove it