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

multiply 5/6 times 24/25

whats the real name for nando lascurain in mi corazón es tuyo?

identify her/his entrepreneurial qualities and support your answer based on what you observed

some fungi are able to reproduce both sexually and asexually. which of the following describes a consequence that would most likely occur is fungi undergo only

What is a adverb cause?

Which is the correct pair of guide words to locate boisterous in the dictionary? A) bode / bold B) bloom / blitz C) bongo / bombard

The first step in treating a burn is to: a. put lotion on it. b. put ice on it. c. moisten the burn with petroleum jelly. d. cool the burn with cool water.

What is the value of y^-5 and x^-3 for x = 2 and y = -4? answers A. 10/3 B. 128 C. -1/128 D. -128

What is the greatest common factor of 30 and 42?

If the government wants to jump-start the economy resulting in more consumer spending, it will raise taxes. true or false?