alan30
alan30
02-09-2017
Mathematics
contestada
how to find the sum of 2+4+6....+40?
Respuesta :
KhaiLi
KhaiLi
02-09-2017
Answer 420.
a, is the first term. d is difference.
Since this is an arithmetic progression, I use this formula.
Un = nth term
Sn = sum of terms.
First find the number of terms, which is 20.
Then use the second formula to find the sum.
Answer Link
VER TODAS LAS RESPUESTAS ( 98+ )
Otras preguntas
select all the statements that are true for the given parabola
Real question; My mom found out yesterday that our dog has cancer. But I do not know how to tell if it is something else. He is shaking in his hind legs, he h
CAN SOMEONE PLEASE HELP ME !
Which pair of elements would most likely bond to form a covalently bonded compound?
The destruction of Pan Am Flight 103 over Lockerbie, Scotland killed many Americans and was a terrible act of domestic terrorism. 1) True 2) False
Which of the following sentences are punctuated correctly A:The girl, walked over to the table on which lay the book, and, without a moment’s hesitation. Picked
What mass of K2CO3 is needed to prepare 200. mL of a solution having a potassium ion concentration of 0.150 M
Guardrails should be installed along all open sides and ends of scaffolding before use. A. False B. True
What is the domain of the function graphed below?
When you enter SCMO through the Evolve portal, you'll be directed to the _______ page. A. screen ID B. open assignments C. EHR simulation playground D
