princessajh
princessajh princessajh
  • 16-05-2017
  • Mathematics
contestada

Find the sum of a Finite arithmetic sequence n=1 to n=18 using the expression 4n-10

Respuesta :

peterdaly
peterdaly peterdaly
  • 26-05-2017
Find the sum of a Finite arithmetic sequence n=1 to n=18 using the expression 4n-10. The sum is 442 using the formula 4n-10 and substituting the n values and then adding up the results arithmetically and finding that the values go up by 4 each time. The first two values are -6 and -2 and then the values are positive after that.
Answer Link

Otras preguntas

Please help me, thank you
Zookeeper feed 4 adult gorillas a total of 160lb of food at the rate how many pounds of food would the zookeeper need ever day to feed 6 adult gorillas
[tex]18x + 20 + x = 10(x) - 3[/tex]
192 rounded to nearest tenth?
How do the colonies build credibility in this section
A pile of sand has a weight of 90kg the sand is put ina small bag a median bag and a large bag in a ratio 2:3:7 work out the weight. Of the sand in each bag
After m months, the height of a plant is 10+3m. How tall is the plant after one year?
Supports Two support beams are modeled by the lines y=2x+10 and y=2x+15. What is the distance between these two lines?
The trapezoid in the figure has equal nonparallel sides. The upper base is 6, the lower base is 16, and the diagonal is 12. What is the altitude of the trapezoi
The trapezoid in the figure has equal nonparallel sides. The upper base is 6, the lower base is 16, and the diagonal is 12. What is the altitude of the trapezoi