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 ( 31+ )
Otras preguntas
What must be true about the width of Joel’s compass opening before he draws the arc
What does mare nostro mean, and why did the Romans use the term
Circle the equation with roots 4 and -8
in a well-structured essay, each topic sentence should help to explain or support a. the title. b. the topic sentence of the next paragraph. c. the thesis. d. t
what are the causes of bone cancer for both humans and animals?
Which function does the sympathetic nervous system affect
Is a membrane required for facilitated diffusion
Kate is working on an assignment on politics and current affairs. What are the most important considerations for Kate to keep in mind when judging the quality o
What is a equivalent ratio to 6/25?
t object]user: in art, the material used by an artist to create a work of art is called the ___________.