Wafiandfamily Wafiandfamily

25-06-2020
Mathematics

contestada

If the nth term of a number sequence is n squared+2n find the first 3 terms and the 10th term

Respuesta :

PollyP52 PollyP52

26-06-2020

Answer:

First 3 terms are 3, 8, 15.

10th term = 120.

Step-by-step explanation:

an = n^2 + 2n

a1 = 1^2 + 2*1 = 3

a2 = 2^2 + 2*2 = 8

a3 = 3^2 + 2*3 = 15.

a10 = 10^2 + 20 = 120.

Answer Link

Otras preguntas

Please answer the question from the attachment.

How did the Great War for the Empire become a "global war," and how did Britain carry out its part in the struggle?

how many moles are there in 77.1 g of cl2?

use the diagram and equations. below to match the following angles with their correct measures

Which organisms

Wendy is arranging books on the bookshelves in the school library. The total number of books she arranges is given by the equation b = 12r, where b is the total

Why did organized labor become more militant in the 1930s? How did the Wagner Act help? In what industries did unions make especially significant gains?

Which one of the following statements is true regarding paragraphs? A. A paragraph with two main topics is called a complex paragraph. B. The topic of a paragra

When serving a formal meal the first item served is the

if a shelf can support 3 3/4 pounds and a book weighs 3/8 of pound , how many books can the shelf hold?