apriavitalimae
apriavitalimae apriavitalimae
  • 04-06-2016
  • Mathematics
contestada

Given the following sequence, find the 15th term: 3,1,-1,-3,-5

Respuesta :

arex21
arex21 arex21
  • 04-06-2016
-25 just subtract 2 everytime 
Answer Link
Panoyin
Panoyin Panoyin
  • 05-06-2016
3, 1 ,-1, -3, -5
 -2  -2  -2   -2

a(n) = a₁ + d(n - 1)
a(n) = 3 - 2(n - 1)
a(n) = 3 - 2(n) + 2(1)
a(n) = 3 - 2n + 2
a(n) = -2n + 3 + 2
a(n) = -2n + 5

a(n) = -2n + 5
   a₁₅ = -2(15) + 5
   a₁₅ = -30 + 5
   a₁₅ = -25
Answer Link

Otras preguntas

Which one of the following choices best represents an advantage of cardiorespiratory fitness? a: Decrease in muscle mass b: Decrease in oxygen intake c: Decreas
What happened before William Bradford in the pilgrims learn to live off the land
Is a Tokyo or Japan a city?
Who was Stokely Carmichael?
How is a line of credit similar to a credit card? a. Interest is charged only on the amount you actually borrow. b. The interest rates are the same. c. They
Did ladd think the actions of these voters were illegal? explain your answer
Which of these objects would show the greatest parallax? a. the Sun b. Mars c. the Moon d. Polaris What is the distance an object would be from Earth if i
Explain the relationship between adaptation natural selection & evolution
Why should college athelets be paid ?
can you explain the Cuban missile crisis (causes, changes in relationship and the effects)?