Seudónimo Seudónimo
  • 22-10-2014
  • Mathematics
contestada

The first term of an arithmetic sequence is -3 and the fifteenth term is 53. What is the common difference of the sequence?

Respuesta :

anniedavies96
anniedavies96 anniedavies96
  • 22-10-2014
a = -3
nth term (u_n) = rn -3, where r = difference between each term

u_1 = -3
u_15 = 53 = 15r -3
u_15 = 56 = 15r
u_15 = 56 / 15 = r

u_n = (56/15)n - 3
Answer Link

Otras preguntas

1. missionary * (1 Point) mountain man Narcissa Whitman John Jacob Astor John Quincy Adams Henry Clay
Can someone pls help me with this
What is the vertex of the function? Consider the quadratic function f(x) = x2 - 8x -9 Vertex (
The average time for four 400-meter runs was 53.4 seconds. If the first run was 52.7 seconds, the second run was 53.3 seconds, and the third run was 54.1 second
which of these statements best describes the mordern era
if a hurricanes destroyed an entire u.s. city what category what most likely be?
tizenship and Local Government 5 Which is an example of something a county government can do? A. choose city mayors B. make state laws C. collect taxes D. chang
Religion is what people believe about god or gods and how they __
(-7+8d)0.6 distributive property
Which part of a sea star's stomach is extruded out through it's mouth to eat?