Write an
i explicit formula for an, the nth term of the sequence 200, 40, 8,

Step-by-step explanation:

Given

Required

The nth term

The given sequence is a geometric sequence.

So, first we identify the first term

Calculate common ration

or

So, the nth term is:

last option

step-by-step explanation:

given that δdef is right and isoceles,

assuming that side df is the hypotenuse means that de an ef are the other 2 sides that intersect at 90° and are of equal length.

because they are of equal length, we can say that they are congruent

because they intersect at 90°, their slopes must be opposite reciprocals.

only the last option satisfies these conditions.

what is the answer to this