ursogolddenn ursogolddenn

17-09-2021
Mathematics

contestada

Find a formula for the nth term in
this arithmetic sequence:
a1 = 28, 22 = 21, a3 = 14, 24 = 7, ...
an = -7n + [?]

Respuesta :

wallindcoy wallindcoy

17-09-2021

a1 = 28

a2 = 21

common difference (d) = a2-a1 = 21-28 = -7

Therefore, an = a1+(n-1)d

= 28+(n-1)(-7) = 28-7n+7 = 35-7n

ANSEER : 35

Answer Link

alliebitz alliebitz

23-06-2022

answer: an = -7n + 35

Answer Link

Otras preguntas

flowers are the operative parts of the flat which are use for production?

In what order should you organize your supporting ideas in a persuasive essay? A.) State the strongest reason first B.) State the strongest reason last C.) In w

What is everyone doing downtown? Complete the sentences with the present tense of the verbs in parentheses. I really need help

Can anyone help me with this before 12:00pm

Diversity among members of a species is important because diversity a increases the chances of survival under changing conditions. b ensures high levels of co

What is a food desert? A place where food is not grown. A place where rain quantity is too low for farming. A place where famine is occurring. A place where hea

How do the narrator's expectations of life away from home affect his perspective of Mme. Kergaran? 1.He is grateful for her hospitality even as he feels guilty

In the FASB ASC, Sections are standardized across all Subtopics. For example, Section 20 will be the Glossary section in every Subtopic. Match the Section num

Last week, a pharmacy sold a bottle of shampoo for $5.00. This week, the shampoo sells for $6.50. By what percent did price increase?

Help please i dont know what to do