samiromero2005 samiromero2005

02-05-2022
Mathematics

contestada

Write a rule for the nth term of the sequence. Then find a20. Assume the first termis a₁. 86, 79, 72, 65…

Respuesta :

khuonglu1999 khuonglu1999

02-05-2022

Answer:

an = a(n-1) - 7

Step-by-step explanation:

the second term is smaller than the first term 7.

a20 = a19 - 7

a19 = a18 - 7

=> a20 = (a18 - 7) - 7

Then you can accumalate until a1

-> a20 = a1 - 19*7 = 86 - 19*7 = -47

Answer Link

Otras preguntas

What must Lauren do to make her sugar cube dissolve quicker than Matt and Erin?

Select all of the answers that apply. The Cretaceous-Tertiary extinction, the most famous of the Big Five, has been attributed to what major event(s) that trig

Where in Florida did tobacco plantations develop

was it the angle of a,d,c

Which feature helps bone resist stress? Spongelike core Blood vessels Nerves Haversian canals

The best place to search for free (and paid) software for customizing your Hootsuite dashboard to your exact business need is called the?

Use part 1 of the fundamental theorem of calculus to find the derivative of the function. y = 5 u3 1 + u2 du 4 − 3x

12 POINTSSimplify i38. i −1 −i 1

Help! Which property is used for each step?

Both fission and fusion occur in nuclei that are unstable due to the relative amount of binding energy per nucleon. 1. true 2.False