Mathematics, 16.11.2020 09:50 ilovejustinbieber42
The fourth term of a geometric progression is 4 and the seventh term is 32/125. Find the first term, the common ratio and the sum of the first nth terms. Hence, deduce the sum to infinity.
Answers: 1
![\frac{a_7}{a_4} =\frac{8}{125} =\frac{a_1\,r^6}{a_1\,r^3} =r^3\\then\\r=\sqrt[3]{\frac{8}{125} } =\frac{2}{5}](/tpl/images/0900/4888/c8ed4.png)
Another question on Mathematics
Mathematics, 21.06.2019 22:30
Given the system of equations presented here: 2x + 4y = 14 4x + y = 20 which of the following actions creates an equivalent system such that, when combined with the other equation, one of the variables is eliminated? multiply the second equation by â’4 to get â’16x â’ 4y = â’80 multiply the second equation by â’1 to get â’4x â’ y = â’20 multiply the first equation by 2 to get 4x + 8y = 28 multiply the first equation by â’1 to get â’2x â’ 4y = â’14
Answers: 1
Mathematics, 22.06.2019 02:00
Which of the following transformations will make coincide with ? a. counter-clockwise rotation 90º about a, followed by a translation 5 units to the right b. translation 5 units to the right, followed by a reflection across the y-axis c. translation 5 units to the right, followed by a reflection across the x-axis d. translation 1 unit up and 5 units to the right, followed by a reflection across the x-axis
Answers: 3
Mathematics, 22.06.2019 04:00
Asugar cube is inch on each edge. how much volume does it occupy?
Answers: 1
Mathematics, 22.06.2019 04:40
Joe bought 4.25 pounds of pears for $7.18. if the equation 4.25x = 7.18models the situation, what does the variable stand for?
Answers: 1
You know the right answer?
The fourth term of a geometric progression is 4 and the seventh term is 32/125. Find the first term,...
Questions
Biology, 08.02.2022 05:50
Mathematics, 08.02.2022 05:50
English, 08.02.2022 05:50
Mathematics, 08.02.2022 05:50
English, 08.02.2022 05:50
Mathematics, 08.02.2022 05:50
English, 08.02.2022 05:50
Biology, 08.02.2022 05:50
Law, 08.02.2022 05:50
