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

What is the total mass of 2.0 moles of H2?
If water did not condense into clouds in the sky what would happen
Simplify: 3m + 7 + 2m
Así se forma 2. Expressing actions in the past: The preterit of irregular verbs 8-9 Completa estas preguntas sobre la última vez que fuiste al cine con formas d
I need help on this question
This company purchased a truck at a cost of $12,000. The truck has an estimated residual value of $2,000 and an estimated life of 5 years, or 100,000 hours of o
We have that 3 * f(x) + 4 * g(x) = h(x) where f(x), g(x), and h(x) are all polynomials in x. If the degree of f(x) is 8 and the degree of h(x) is 9, then what i
What were the results of the Election of 1824?
Why is freshwater important, why is it at risk, and what actions can we take to protect it?
What is an organ system? Choose one of the organ systems and list the organs that belong to that system, as well as the system’s function.