01-08-2020
Mathematics

contestada

Find the 20th term from the last term of the AP:3,8,13,..., 253.

Respuesta :

MathPhys MathPhys

01-08-2020

Answer:

158

Step-by-step explanation:

The sequence is 3, 8, 13, ..., 253.

Going backwards, it's 253, 248, 243, ..., 3.

First term is 253, common difference is -5.

The nth term is:

a = 253 − 5(n − 1)

The 20th term is:

a = 253 − 5(20 − 1)

a = 158

Answer Link

Otras preguntas

What strength of the continental army was significant to its ultimate victory?

What two plant traits did Luther Burbank try to combine in his crosses?

Divide 3, 312 into 48

Which concept of democracy does the statement below define? Everyone has the same rights, regardless of gender, religion, or race. A. necessity of compromise B

The rapid rise of Buddhism coincided with this empire in India. Gupta Harappan Mauryan Pallavas

a counterclaim ? A) strengthens an argument B) clarifies the main idea C) shows weakness in opposing claim D)all of the above

Select the correctly punctuated sentence. A. School began on a cold September morning. B. School began on a cold, September morning. C. School began on a cold S

Which major change took place in Nigeria in 1999? A.Ethnic tensions came to an end. B.A peace treaty concluded the civil war.C.Military leaders led a government

True or false Cool air is less dense than warm air.

By law, all tax laws must originate with the a. House of Representatives. b. Senate. c. IRS. d. President.