Mathematics, 23.06.2019 14:30 Rebelyfe4175
Write the first three terms of the series for which tn = 2(n+3). find the number of terms of the series required to make the sum 228.
Answers: 1
![S_n=\frac{n}{2}[2a+(n-1)d]](/tpl/images/0008/2880/b603c.png)
![288=\frac{n}{2}[2(8)+(n-1)2]](/tpl/images/0008/2880/9d3d9.png)
![288=\frac{2n}{2}[8+n-1]](/tpl/images/0008/2880/dfb95.png)
![288=n[n+7]](/tpl/images/0008/2880/e1e25.png)
Another question on Mathematics
Mathematics, 21.06.2019 22:00
Write an inequality for this description. - one fourth of the opposite of the difference of five and a number is less than twenty.
Answers: 1
Mathematics, 21.06.2019 23:40
20 ! jason orders a data set from least to greatest. complete the sentence by selecting the correct word from each drop-down menu. the middle value of the data set is a measure and is called the part a: center b: spread part b: mean a: mean absolute deviation b: median c: range
Answers: 1
Mathematics, 22.06.2019 01:00
The graph shows how many words per minute two students read. drag to the table the unit rate that matches each graph.
Answers: 2
Mathematics, 22.06.2019 02:00
Graph a triangle (xyz) and reflect it over the line y=x to create triangle x’y’z’. describe the transformation using words. draw a line segment from point x to the reflecting line, and then draw a line segment from point x’ to the reflecting line. what do you notice about the two line segments you drew? do you think you would see the same characteristics if you drew the line segment connecting y with the reflecting line and then y’ with the reflecting line? how do you know?
Answers: 1
You know the right answer?
Write the first three terms of the series for which tn = 2(n+3). find the number of terms of the ser...
Questions
Mathematics, 18.12.2019 22:31
History, 18.12.2019 22:31
Mathematics, 18.12.2019 22:31
Chemistry, 18.12.2019 22:31
Social Studies, 18.12.2019 22:31
Social Studies, 18.12.2019 22:31
Mathematics, 18.12.2019 22:31
Chemistry, 18.12.2019 22:31
Computers and Technology, 18.12.2019 22:31
Arts, 18.12.2019 22:31
