marianekarkaba marianekarkaba
  • 23-07-2020
  • Mathematics
contestada

please help answer this question as soon as possible!

please help answer this question as soon as possible class=

Respuesta :

jimrgrant1 jimrgrant1
  • 23-07-2020

Answer:

[tex]a_{n}[/tex] = 10.5 - 3n

Step-by-step explanation:

The explicit rule for an arithmetic sequence is

[tex]a_{n}[/tex] = a₁ + (n - 1)d

where a₁ is the first term and d the common difference

A recursive formula has the form

[tex]a_{n}[/tex] = [tex]a_{n-1}[/tex] + d ( where d is the common difference )

Given

[tex]a_{n}[/tex] = [tex]a_{n-1}[/tex] - 3 ⇒ d = - 3

Thus explicit rule with a₁ = 7.5 and d = - 3

[tex]a_{n}[/tex] = 7.5 - 3(n - 1) = 7.5 - 3n + 3 = 10.5 - 3n

Answer Link

Otras preguntas

[tex]\frac{35+10\sqrt{5}}{29}[/tex].Rationalize the denominator and simplify.
Что характерно для 1 группы крови?
How graph y>-4x-8 and y
the ____ sought trial of European and British people by Indian judges .
8 — Time and Effort Estimates Identify factors that impact time estimates for a project. Grace and her team are in charge of cleaning up the local park every s
Give me what type of orbital it is with the correct indicator energy
Due to which reasons have the E-mail, E-commerce and the exchange of currency become faster?
Fill in the blank. ... Measures the value of skipped alternative
b+22=b+17c-14 what is the answer to this? its geometry
Malik needs to use a type of graph in a spreadsheet to show variations in data over a specific period. What type of graph or chart is most useful for this purpo