Mathematics, 23.06.2020 18:01 waterborn7152
Find the sum of the first 16 terms in an arithmetic series where a1 = 2, and the common difference is d=2. Question 4 options: A) 272 B) 240 C) 360 D) 306
Answers: 2
![S_{n}=\frac{n}{2}*[2a + (n-1)d]\\\\s_{16}=\frac{16}{2}[2*2+15*2]\\\\ =8*[4+30]\\\\=8*34\\=272](/tpl/images/0692/3934/26a07.png)
Another question on Mathematics
Mathematics, 21.06.2019 19:30
Factor the following expression. 27y3 – 343 a. (3y + 7)(9y2 + 2ly + 49) b. (3y – 7)(9y2 + 2ly + 49) c. (3y – 7)(932 – 217 + 49) d. (3y + 7)(92 – 2ly + 49)
Answers: 1
Mathematics, 21.06.2019 21:30
In a two-digit number the units' digit is 7 more than the tens' digit. the number with digits reversed is three times as large as the sum of the original number and the two digits. find the number.
Answers: 2
Mathematics, 22.06.2019 00:10
Change negative exponents to positive. then solve. round to four decimal places
Answers: 3
You know the right answer?
Find the sum of the first 16 terms in an arithmetic series where a1 = 2, and the common difference i...
Questions
Mathematics, 27.07.2021 14:00
English, 27.07.2021 14:00
Mathematics, 27.07.2021 14:00
Social Studies, 27.07.2021 14:00
Mathematics, 27.07.2021 14:00
Mathematics, 27.07.2021 14:00
Biology, 27.07.2021 14:00
Medicine, 27.07.2021 14:00
Mathematics, 27.07.2021 14:00
Business, 27.07.2021 14:00
