rogerlewis101485 rogerlewis101485
  • 03-02-2020
  • Mathematics
contestada

This one is hard, What number does it follow?

1,3,6,10,15,21,

Respuesta :

GrandNecro
GrandNecro GrandNecro
  • 03-02-2020

Its a sum of all previous iteration.

1=1

3=1+2

6=1+2+3

10=1+2+3+4

15=1+2+3+4+5

...

etc

Answer Link

Otras preguntas

An example of the ________ function of motivation is for crest to point out how its new toothbrush is superior to all other toothbrushes in controlling gum dise
At a height of about 212 meters, One Shell Square is the tallest building in New Orleans. Marlie is creating a scale model of this building, using the scale 250
Quelle fête me rend amoureuse?
The diameter of the sphere is
What does et al. mean?
the function f(x)=x-1/x+1 is never equal to zero
what is the total number of liters of SO3 produced when 32.0 of SO2 reacts completely
Write a Algebraic expression for each problem . USE >N< for the variable... 1. A number plus three 2. eight times a number 3. fifteen divided by some nu
help please please help hard
When using a micron gauge, if the pressure gauge falls frim 1,300 to 1,000 instantly, the vehicle needs to?