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

The _______ system breaks down food, and the _______ system transports nutrients to the cells of the body.
a pine tree measured 40 and 1 over 2 feet tall. Over the next 7 and 1 over 2 years it grew to a height of 57 feet. During the 7 and 1 over 2 years, what was the
Which of the following was not an accomplishment of the emperor Trajanlegalized Christianity       built bridges, aqueducts and harbors       reduced taxes
PLEASE HELP I GIVE THANKS
how many 1 1/2 centimeter cubes can fit into a rectangular prism that has a length of 12 centimeters , a width of 6 centimeters and a height of 9 centimeters
Give a recursive algorithm for finding the sum of the first n odd positive integers.
Paulina works out with a 2.5 kilogram mass. What is the mass of the 2.5 kilogram mass in grams?
20 points People disagree whether the United States should have gone to war against Mexico. Should the United States have declared war? Opinions Please The Unit
In terms of weather, what kind of boundary does the line labeled  X represent? A. occluded front B. stationary front C. cold front D. warm front
What Role Does the Sun Play in Producing Winds And Ocean Currents