diyapritambhat diyapritambhat

08-06-2022
Mathematics

contestada

find the sum of 1+2-3+4+5-6+7+8-9+...+97+98-99

Respuesta :

08-06-2022

Answer:

Hi,

Step-by-step explanation:

Let's make group of 3 numbers

1+2-3=0

4+5-6=3

7+8-9=6

...

97+98-99=96

s=1+2-3+....+97+98-99=0+3+6+..+96=3*(0+1+2+3+...+32)

=3*(32+0)*33/2

=1584

Answer Link

Otras preguntas

Use the drop-down menus to complete each equation so the statement about its solution is true.

Why are there not large, visible colonies of bacteria like those in the petri dish on the things we use every day? (please don't write anything randomly or else

HOW TO DO THIS QUESTION PLEASE

Create a CourseException class that extends Exception and whose constructor receives a String that holds a college course’s department (for example, CIS), a cou

pls help will give brainliest to the correct answer :)

Determine whether each pair of actions results in independent or dependent events. Pick one marble out of a bag. Then, without replacing the marble, pick anothe

WILL AWARD BEST ANSWER! find the current flowing across the 30 ohm resistor i = _ a

Let me start at your tip and follow your path as you spiral and spiral around, making a maze to amaze and astound and distract me from my math. So many shapes h

Solve using the quadratic formula. Show all work. Write each solution in simplest form. No decimals.

i'm stuck on this question! solve for x. assume that lines which appear tangent, are tangent.

good job