ladyraven ladyraven
  • 19-06-2018
  • Mathematics
contestada

What is the sum of the first five terms of the geometric series 1 − 3 + 9 −...

Respuesta :

jdoe0001 jdoe0001
  • 19-06-2018
[tex]\bf 1~~,~~\stackrel{-3\cdot 1}{-3}~~,~~\stackrel{-3\cdot -3}{9}~~,~~\stackrel{-3\cdot 9}{-27}~~,~~\stackrel{-3\cdot -27}{81}[/tex]

notice, the "common ratio" is -3, thus their sum is just

1 + (-3) + 9 + (-27) + 81.
Answer Link

Otras preguntas

round 9,909.937 to 2 decimal places
What is the simplified form of the rational expression below? 5x^2-5/3x^2+3x
When you have had to work with others to make a group decision,you have usually - proposed a 'middle ground' option to break deadlocks. worked to avoid options
What is the standard metric unit of volume?
How did the Boston tea party lead to the revolutionary war
What polyatomic ion forms a neutral compound when combined with a group 2A monatomic ion in a 1:1 ratio? • ammonium • carbonate • nitrate • phosphate
In the seventeenth century, the puritans a. were part of the cavaliers. b. were loyal to the pope. c. sided with cromwell. d. were aligned with the monarchy
In 3 seconds, kevin can dribble a basketball 13 times. if kevin dribbles at this same rate for 27seconds, how many times will he dribble the basketball?
Which of the following is true? Water is important to some organisms. Some substances must be dissolved in water before they can be used. All organisms
How is meiosis related to sexual reproduction?