diananaranjo661 diananaranjo661
  • 19-03-2020
  • Mathematics
contestada

What’s the 10th term of the geometric sequence 9,-18,36

Respuesta :

shakylaguy
shakylaguy shakylaguy
  • 31-01-2021

Answer:

90 i think

Step-by-step explanation:

a^{1}=9

a^{2}= 18

d = ?

a^{10}=?

a^{2} =a, + (n-1) d

18 = 9 + (2-1) d

d=18-9

d=9

a ^{10}= a^{1} + (n-1)d

a ^{10}= 9 + (10-1) (9)

a ^{10}= 9+ (9 x 9)

a ^{10}=9+8^{1}

a^{10} = 90

Answer Link

Otras preguntas

Quelle est la particularite du personnage gayane de Cécile roumigère svppp
Show how the tariff of R18,87 during 2017/2018 was calculated.​
Ang transportasyon at komunikasyon noong panahon ng kastila ay?
meaning of earthquake ​
passage.Melissa had been anticipating this day all summer. Ever since she found out that her parents were going to take her and her brotheenny, to see the end-o
First and follow expr
raymond's run How does seeing her brother run impact Squeaky?
Which of the following best describes a characteristic of Regionalism in American Gothic by Grant Wood?American GothicGrant WoodO idealized imagery that promote
Earlier in the play, Capulet said Juliet will get to have a voice in whom shemarries. Now, he's raging at his daughter for speaking up against his choice.Explai
What’s a middle-class star become as it ends of this life