Answer:
Initially, <em>there were 50 memes</em>.
Step-by-step explanation:
It is given that the number doubles daily.
Let the initial number = a
On 2nd day, the number = 2a
On 3rd day, the number = 2 2a
On 4th day, the number = 2 2 2a
and so on..
If we look closely, it is a Geometric Progression with
First term = a and
The common ratio, r = 2
Also, it is given that, 12th term:
nth term of a GP is given as:
So,
Hence, the answer is, the <em>initial number is 50</em>.
To find the decimal form of 12/20, we do:
12/20= 0.6
N = 5
These are similar triangles so their sides are proportional. The scale factor is the smaller triangle to the large triangle is
5/12.5 = 4/10 = 2/5
So if AB corresponds to QR (2 corresponds to n) then n = 5
(a - 2b) • (2a - b) is how you factor this using FOIL