AndrikU64188 AndrikU64188

25-10-2022
Mathematics

contestada

If a1 = 7 and an3an-1 + 4 then find the value of a4.

Respuesta :

RukayaQ647936 RukayaQ647936

25-10-2022

A1 = 7

An = 3A(n-1) + 4. According to this, A2 would be= 3*7 + 4 =25

A1 = 7, A2 = 25, then the difference is d = 18

The general formula for an aritmethic progression is An = A1 + (n -1)d

For A4 = 7 + (4-1)*18 = 61

Answer Link

Otras preguntas

a post on a classifieds website Craigslist advertised a mountain bike selling for $1,164 less than it's retail price. if this is a 40% savings, what is the ret

Which group used the stirrup, skilled horsemanship, and siege warfare techniques to conquer much of Asia and part of Europe in the 12th and 13th centuries? (1)

What was an immediate result of the Black Death? (1) labor shortages (2) overseas exploration (3) decrease in anti-Semitism (4) improvements in medical science

The Federalists and Anti-Federalists argued primarily over which issue? a. the political representation of southern slaves b. fair state representation in the n

What's median number for the numbers 4,8,10,5,9

A list of environmental issues is shown below. • Rabbits transported from Europe overrun and deplete farmlands in Australia. • Many areas in the southeastern Un

Base your answers to questions on the information below and on your knowledge of biology. A woman wanted to remove the dandelion plants from her lawn. She went

Which value of m will create a system of parallel lines with no solution? y = mx – 6 8x – 4y = 12 m =

If an exchange rate is £1= 2.03 American dollars £1= 2.15 Canadian dollars How many more canadian dollars than American dollars do you get for £250

A box containing 20 books costs $297.20. Which equation can be used to find c, the cost per book?