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

A caterpillar is 2.83 centimeters long how long is it to the nearest whole number
how would you forn a superlative for the adverb widely
Use properties to find the sum or product. 93+(68+7)
What comes after a hypothesis and is used to determine whether the hypothesis is correct
what was the Columbian Exchange was all about including whom it was named after what goods were trade and what countries were involved
In 1916, Woodrow Wilson ordered General John J. Pershing to lead U.S. troops into Mexico to capture
How do you get 58% as a decimal
which is a characteristics of a physical change? A.the chemical bonds i the substance are uncharged B.the change cannot be seen C.the molecules all move at the
Use properties to find the sum or product. 93+(68+7)
The delegates at the Constitutional Convention ended the slave trade effective immediately following the ratification of the Constitution.