carinaburcea36 carinaburcea36

04-04-2020
Mathematics

contestada

Efectuati!
(-1)+2+(-3)+4+(-5)+...+(-19)+20
Ajutati-ma, va rog!

Respuesta :

dannielle dannielle

04-04-2020

Answer:10

Step-by-step explanation:

2+4+6+.....+20- (1+3+5+7+...+19)=(2-1)+(4-3)+(6-5)+....+(20-19)=1+1+...+1 ( de 10 ori= 10 times)

=10

Answer Link

Otras preguntas

PLEASE HELP I GIVE THANKS

Cells exchange material across the cell ___?

Senator Jon Tester of Montana was reelected in 2012. If he decides to run again when his current term expires, in what year will the election occur?

what is 24/100 in its simplest form

Question 1.1. Choose the correct answer. Nancy bought 360 tropical fish for a museum display. She bought 8 times as many goldfish as angelfish. How many of eac

Which team has represented the AFC in the Super Bowl the most times?

PLEASE HELP I GIVE THANKS

What is the second hottest layer of the atmosphere?

how do i get group B strep?

Earth's population continues to grow daily. Which of the following statements best illustrates a possible consequence of such rapid growth?