# 1)Find the sixth term of the geometric sequence for which a1=5 and r=3 A)1215 B)3645 C)9375 D)23 I chose A 2)Write an equation for the nth term of the geometric sequence -12,4,-4/3... A)aN=-12(1/3)n-1 B)aN=12(-1/3)n-1 C)aN=-12(-1/3)-n+1 D)aN=-12(-1/3)n-1 I chose C 3)Find

93,362 questions, page 15
1. ## math

A geometric series with the first term 7 converges to 70. What does the common ratio equal? What does the second partial sum equal?

asked by Jim on April 29, 2012
2. ## math

use words to describe the rule of the following sequence.Then find the next three ters of the sequence.2,3,and6 to illustratethe associative property of multiplication

asked by gen on October 11, 2010
3. ## maths

There are 6 terms in an A.P. 6th term is 3 times the second term and 4th term is 4 times the first term. if the 5th term is 15 find the terms

asked by jennifer on February 25, 2014
4. ## Math

It 2,3,5,8, and 12 arithmetic or geometric? Explain why My answer it that it is arithmetic because it is adding 1 more numbee then before and still is equal to its previous term. I just want to see if it is correct

asked by M on March 11, 2019
5. ## math

If the sum of the 4th term and the 7th term is 45.The sum of the 9th term is 117.Find the term when the sum of it is 600

asked by thembeka on February 16, 2017
6. ## MATH

Please help me with this!! The first term in a sequence of number is t1 = 4. The terms that follow are defined by the formula: tn - tn-1 = 3n -2. Determine the value of t50.

asked by ANONYMOUS on July 6, 2011
7. ## math

7, 49, 343, 2401 Write an algebraic expression that will represent the nth term of the sequence.

asked by Isha on January 26, 2011
8. ## Math

The first term in a sequence of number is t1 = 4. The terms that follow are defined by the formula: tn - tn-1 = 3n -2. Determine the value of t50.

asked by help!!!!!!!!!! on July 6, 2011
9. ## Math(Pre=Calc)

The first term in a sequence of number is t1 = 4. The terms that follow are defined by the formula: tn - tn-1 = 3n -2. Determine the value of t50.

asked by Kate on July 6, 2011
10. ## algebra

what is the 10th term of the sequence 81,27,9 can someone please explain the steps. possible answers; 1/729 1/243 1/81 1/810

asked by ciara on February 12, 2013
11. ## algebra

What is the 100th term of the arithmetic sequence 3/4, 5.25, 39/4, 14.25,...? Express answer as a decimal to the nearest hundredth.

asked by kasey on April 2, 2011
12. ## math

What is the fifth term in the arithmetic sequence defined by the explicit formula an=6n−4? Enter your answer in the box. a5=

asked by Jay on January 3, 2017
13. ## Math

– 11 is the __________ term of the arithmetic sequence – 847, – 836, – 825, – 814, – 803, …

14. ## Calculus

Find the first 4 terms and the 8th term of the recursively-defined sequence. 4. v1 = 0.75 and vn = (-2)vk-1 for n>1 A. 0.75, 1.5, -3, 6; -192 B. -1.5, -3, -6, -12; 192 C. -1.5, -3, -6, -12; -192 D. 0.75, 1.5, 3, 6; -192 E. 1.5, 3, 6, 12; 192 F 0.75, -1.5,

asked by Brock on July 10, 2012
15. ## Math

Sequence Geometric or Arithmetic Constant Ratio/Difference -2 4 10 16 22 Arithmetic 6 Recursive Function f (1) = -2 f (x) = f (x - 1) + 6 What would the explicit function be? I understand the rest just not this it is to confusing.

asked by James Doyle on January 1, 2019
16. ## math

Below is a sequence an, for n = 0, 1, 2, ... n 0 1 2 3 4 5 6 7 8 9 an 25 25 19 25 61 145 295 529 865 1321 Use the method of finite differences to find a closed formula for this sequence.

asked by Ralph on February 8, 2015
17. ## Calculus II

Compute the first 5 terms of the sequence: {b(n)}n=1¨‡ = nã6n + (5/6)^n. ((that is:(Bsub(n))from n=1 to infinity = nth root of 6n + (5/6)raised to n.)) If the sequence converges, find the limit.

asked by chelsea on April 14, 2014
18. ## algebra 2/trig

Write the next term of sequence,and then write the rule for the nth term. 1)1,8,27,64,....125 the nth is 2) 3,8,15, 24,.....35 the nth is Can you help me and correct ? thank

asked by JOSEPH on April 28, 2012
19. ## algebra2/trig

Write the next term of sequence,and then write the rule for the nth term. 1)1,8,27,64,....125 the nth is n 2) 3,8,15, 24,.....35 the nth is Can you help me and correct ? thank you

asked by JOSEPH on April 28, 2012
20. ## Math

Consider sequence Uvn=2x^2. Find (∇u)vn and write u as an accumalation sequence

asked by Sarah on November 2, 2016
21. ## math

1) If the sum of the first n terms of a series is Sn where Sn=2n²-n, (a)prove that the series is an AP, stating the first term and the common difference; (b)find the sum of the terms from the 3rd to the 12th inclusive 2) In an AP the 6th term is half the

asked by Anonymous on April 17, 2008
22. ## Math

1) If the sum of the first n terms of a series is Sn where Sn=2n²-n, (a)prove that the series is an AP, stating the first term and the common difference; (b)find the sum of the terms from the 3rd to the 12th inclusive 2) In an AP the 6th term is half the

asked by Anonymous on April 17, 2008
23. ## math

Sir pizza donated 14 pizzas to the sixth grade picnic. How many pizzas were there for each of the three classes of sixth graders? (No remainder change to fration)

asked by michelle on December 1, 2010
24. ## maths

In an AP the first term is 2 and the nth term is 29 and the sum of the n term is 155 find n

asked by John on April 22, 2013
25. ## Maths

if the first term of an AP is 3 and the last term is 48 find the number of terms in the AP if the sum of its term is 34?

asked by Juliet on May 29, 2019
26. ## arithmetic

second term is 8 and fourth term is 14.find the first term and the common difference.

asked by kagai on March 23, 2015
27. ## G.p.

The second term of a g.p. Is 27 and 7th term is 1/9. Find the first term and the common ratio.

asked by Warnar on December 6, 2016
28. ## math

If the first term of an AP is 5 and it's 100th term is -292.find it's 50th term.

asked by m on January 14, 2017
29. ## Math

In an A.P.the third term is 4 times the first term and the 6th term is 17. Find the series

asked by Jatin on January 5, 2012
30. ## womens college

If the second term of a g.p. is 27 and 7th term is 1/9. Find the first term and the common ratio?

asked by kashish on May 21, 2017
31. ## Maths

The 18th term of an A.p is 25.(a) find it's first term when the common difference is 2.(b) what term of an A.p gives 49

asked by Aliyu on March 14, 2016
32. ## Math

The 12th term of an A.P is minus41 given that the first term is 3,find the 20th term

asked by Linda on September 1, 2019
33. ## algebra

the 9th term of an A.P is 52 while he 12th term is 70. find the sum of is 20 term

asked by wisdom on February 14, 2016
34. ## francis

if the 8th term of an A.P is twice the 5th term, find the 12th term

asked by vivian on April 18, 2017
35. ## math

the fifth term of an arithmetic progression is 19,and the fourteenth term is 55. Find its first term

asked by triz on January 2, 2017
36. ## Quantitative techniques

The 7th term of the A.P is 34 and 15th term is 74. Find it's 40th term.

asked by Sheela on December 20, 2016
37. ## man alive! can someone check for me?

I am so bad when it comes to mathI I think I am slow! okay so my question is : a recrusive sequence is defined by tn= 2tn-1, where t1= 5 define the first five terms of this sequnce: so would I go like this to figure them out: 2tn-1, where t1= 5 so

asked by george on October 18, 2006
38. ## math

The second term, the fifth term and eleventh term are in a Gp.if the eleventh term is 4.Find the difference between the sums of each progression

asked by daphne on October 14, 2016
39. ## Math

1. Find the value of k so that 2, k^2, 8 form a geometric sequence. 2. Water is leaking from a water tower. On the first day, two gallons were lost. The leak is getting progressively worse and the amount of water lost triples each day. How many gallons

asked by Reyna on October 7, 2014
40. ## math

Suppose that you are responsible for predicting the cost of constructing a new office building. You find that the first story costs 500 dollars per square meter of floor space, and the second story costs 600 dollars per square meter. Assume that the costs

asked by Kim on May 4, 2012
41. ## Math

Find a function (rule) that describes the sequence" 24, 21, 18, 15 and find the next three in the sequence.

asked by Anonymous on March 31, 2016
42. ## math

in a Geometric progression the sum of the first and the second terms is 90 and the sum of the second and the fourth terms is equal to 30.find the sum of the first 8th term in the progression

asked by Ali on November 5, 2010
43. ## Math

the sum of the 4th term and the 5th term is 12.if the 4th term of the progression is 8, find the common ratio and the 1st term of the progression.

asked by Malek on January 15, 2011
44. ## FUNCTION 11..HELP!

The sun of the first five terms of a geometric series is 186 and the sum of the first six terms is 378. if the fourth term is 48, determine a,r, t10, S10

asked by Anonymous on January 6, 2013
45. ## Math

For the geometric series, S4/S8 = 1/17. Determine the first three terms of the series if the first term is 3.

asked by Tom on January 4, 2014
46. ## arithmetic

The 8th term of an A P is 5times the third term while the 7th term is 9 greater than the 4th term.what are the first five term

asked by Anonymous on November 4, 2011
47. ## Sequences

Show full steps: 1a) Determine the formula for the nth term for 7,12,17... b) Determine the value of the 19th term,t19. 2) Determine the number of terms in the sequence 4,12,36...2125764. Show all necessary steps. There are 15 more questions but I think if

asked by Mercy on May 25, 2013
48. ## Algebra

The 15th and 21st terms of an arithmetic sequence are -67 and -97. What is the 30th term? This is all I can figure out? -97- (-24)= -30 common difference. HELP!

asked by Jalen on January 18, 2016
49. ## Math

Write an expression for the most apparent nth term of the sequence. Assume n begins with 1. 3,7,11,15,19 My answer was an= 3 +4n but this wrong.

50. ## Math

1. Determine the formula for the nth term of the following sequence: 6, 14, 22, 30, 38, 46, ... I got an = 8n - 2 Is that right? 2. The following statement is true by mathematical induction: (4/3)^n > n for all n > or equal to 6 True? 3. To find the 6th

asked by mysterychicken on June 7, 2013
51. ## Calculus

Chairs in an auditorium are arranged in rows in such a way that the first two rows each have the same number of chairs. The third and fourth rows each have three more chairs than the first and second row; the fifth and sixth rows each have three more

asked by Anonymous on September 21, 2011
52. ## math

1. The table shows the number of wild strawberry plants in a particular forest t years after a forest fire. Use a graphing calculator to find the exponential function that best fits the set of data. Number of Wild Strawberry Plants years | wild strawberry

asked by Mary on April 12, 2007
53. ## math seriously help me

Sally graphs the geometric sequence an = 2(3)n - 1 on a coordinate plane where she plots an on the y-axis and n on the x-axis. This graph is the same as the graph of which type of function? A) cubic B) linear

asked by jose on May 5, 2017
54. ## math

Sally graphs the geometric sequence an = 2(3)n - 1 on a coordinate plane where she plots an on the y-axis and n on the x-axis. This graph is the same as the graph of which type of function? A) cubic B) linear

asked by jose on May 5, 2017
55. ## calculus - power series ASAP please :)

using power series, integrate & evaluate to 4 dec. places integral from 0 to 1: sin x^2 dx i'm REALLY stuck on this. and i need help asap.. what is the inverse of "sin x^2" so that i could have it in a fraction that will fit the power series equation? and

asked by COFFEE on July 31, 2007
56. ## hstory

?what was signed in 1215,required the king to follow the same laws as other english people?

asked by jerry on December 4, 2008
57. ## physics

The two blocks of masses M and 2M shown above initially travel at the same speed v but in opposite directions. They collide and stick together. What is the final velocity of the mass M after the collision? negative one sixth v. negative one third v. Zero

asked by ashley on February 4, 2014
58. ## arithmetic

THE SUM OF THE 2ND AND 5TH TERMS OF AN A.P IS 42. IF THE DIFFERENCE BETWEEN THE 6TH AND 3RD TERM IS 12, FIND THE: COMMON DIFFERENCE, 1ST TERM, 20TH TERM.

asked by JOSHUA BAME on November 26, 2010
59. ## Math

In an arithmetic progression, the 5th term is six times the 1st term and the sum of the first six terms is 99. Find the 1st term and the common difference. Attempt at solution: U5 = 6(U1) 99 = 3(2[U1] + 2d)

asked by Lucas on November 24, 2017
60. ## math

24. Four friends attempted to write the explicit expression for the nth term of the sequence 2, 5, 10, 17, …. 24. Four friends attempted to write the explicit expression for the nth term of the sequence 2, 5, 10, 17, …. If n represents the set of

asked by emily on December 21, 2016
61. ## MATH !!!!!!!!! HELP

Find the exact value (either decimal or fraction form) of the first term of an arithmetic sequence if the sum of the first 100 terms is 7099.5 and the sum of the next 100 terms is 20799.

asked by john on April 12, 2011
62. ## math

Find the exact value (either decimal or fractional form) of the first term of an arithmetic sequence if the sum of the first 100 terms is 7099.5 and the sum of the next 100 terms is 20799.

63. ## maths

An arithmetic series has first term 5 and a common difference 7 a) write down the 4th term and the 23rd term b) find the sum of the first 38 terms of this series.

asked by Anonymous on April 26, 2016
64. ## Math

In an arithmetic progression the 5th term is six times the 1st term and the sum of the first six terms is 99. Find the 1st term and the common difference.

asked by Mark on September 24, 2019
65. ## precalculus

Are my answers correct if not which are right? Find the second difference for the sequence. 7, 6, 7, 10, 15, 22, …. 1 2 3 5 answer:a Find first differences for the sequence in order from a1 to a5. Determine whether or not the series is quadratic or not.

asked by sally on December 14, 2016
66. ## math

1).Write the first five terms of the sequence whose nth term is -10n-1. 1ST_ 2ND_ 3RD_ 4HT_ 5TH_

asked by Bria on December 11, 2008
67. ## Pre Calc

For the sequence, write an explicit formula for the nth term. 1/5, 2/7, 3/9, 4/11... I don't know how to start. I have other sequences also, so I need to learn, not just get the answer. Thank You

asked by mw on March 4, 2009
68. ## changing

If for a sequence (tn),sn=2n²+5n,find tn and show that the sequence is an a.p

asked by Anonymous on July 10, 2015
69. ## Math

Determine the sum of the first 20 terms of the arithmetic sequence in which ... f) the 7th term is 43 and the 13th term is 109 I know you can make two equations : 43 = a + 6d and 109 = a + 12 d And subtract them to get d = 11 But I know there's another way

asked by Crystal on January 12, 2013
70. ## Math - Algebra

An architect is designing a building in the shape of a rectangular pyramid. The number of windows on each floor forms an arithmetic sequence. There are 76 windows on the 7th floor, 68 on the 8th floor, and 4 on the very last floor Find an explicit formula

asked by Richard on February 19, 2018
71. ## E.s groly

5 times the 5th term of arthmetic progression is equa to 10 times the 10th term. Find the common difference and the first term

asked by Aphrodis on June 15, 2015
72. ## Computer Science - MATLAB

One interesting property of a Fibonacci sequence is that the ratio of the values of adjacent members of the sequence approach a number called “the golden ratio” or PHI. Create a program that accepts the first two numbers of a Fibonacci sequence as a

asked by George on July 8, 2011
73. ## math

The third term of a G.P is 24 and the sum of the first two terms is 288. If all the terms are positive,find a)the first term and the common ratio b)the sum of all the terms from 4th term to the 8th term

asked by Anonymous on February 3, 2014
74. ## math

PLEASE HELP I WOULD REALLY APPRECIATE IT! 1. Write an expression to describe a rule for the sequence. Then find the 100th term in the sequence. 3,10,17,24,31,38 ANSWERS: A) n+7;707 B) 7n:700 C) 7n-4;696 ** D) 6n-4;596 2. Write a rule for the function

asked by anonymous on May 14, 2015
75. ## Calculus

A) How do you prove that if 0(

asked by Sarita on April 2, 2010
76. ## calculus

A) How do you prove that if 0(

asked by Sarita on April 3, 2010
77. ## calculus

A) How do you prove that if 0(

asked by Sarita on April 1, 2010
78. ## can you check my answers precalculus

can you check my answers? Find Pk + 1 if Pk = 7 + 13 + 19 + ...+[6(k - 1)+1] + (6k + 1) 7 + 13 + 19 + …+[6(k - 1) + 1] + (6k + 1) + [6(k + 1) + 1] 8 + 14 + 20 + …+[7(k - 1) + 1] + (7k + 1) 7 + 13 + 19 + …+(6k + 1) 7 + 13 + 19 + ...+[6(k - 1) + 1] +

asked by Anonymous on December 14, 2016
79. ## precalculus

can you check my answers? Find Pk + 1 if Pk = 7 + 13 + 19 + ...+[6(k - 1)+1] + (6k + 1) 7 + 13 + 19 + …+[6(k - 1) + 1] + (6k + 1) + [6(k + 1) + 1] 8 + 14 + 20 + …+[7(k - 1) + 1] + (7k + 1) 7 + 13 + 19 + …+(6k + 1) 7 + 13 + 19 + ...+[6(k - 1) + 1] +

asked by Anonymous on December 14, 2016
80. ## Biology

I am totally confused by what to do here: GGG CAT GGT CCT ATT TAC DNA coding strand sequence: DNA non-coding strand sequence: mRNA sequence: Amino acid sequence:

asked by Jen on October 31, 2007
81. ## Physical science

What is the force of gravity between two 1215 kg cars separated by a distance of 31m on an interstate highway

asked by Anonymous on February 14, 2016
82. ## Algebra 2

Q: What represents the sum of a geometric series with 8 terms whose first term is 3 and common ratio is 4. A: 65,535 Is my answer right? I wasn't sure when adding up the terms versus using Sigma notation.

asked by Bill on March 7, 2016
83. ## Calculus

I am trying to solve a sigma/summation notation problem: n = 99, i = 4 and each term in the sequence is determined by (1/i) - (1/(i+1)). Since n = 99, I think it's safe to assume my professor does not want me to actually go through the process of subbing

asked by Tim on November 8, 2016
84. ## mathematics

the 1st term of arithmetic series is 2 .the 1st ,3rd and 11th terms are the first the terms of a geometric series. find the 6 terms of the arithemetic series

asked by cebile on March 14, 2013
85. ## Computer Science - MATLAB

I guess it was skipped One interesting property of a Fibonacci sequence is that the ratio of the values of adjacent members of the sequence approach a number called “the golden ratio” or PHI. Create a program that accepts the first two numbers of a

asked by George on July 8, 2011
86. ## Discrete Math

Could someone help me with this induction proof. I know its true. given then any integer m is greater than or equal to 2, is it possible to find a sequence of m-1 consecutive positive integers none of which is prime? explain any help is greatly appreciated

asked by Kai on March 26, 2007

1. Each time a touchdown is scored in a football game, 6 points are added to the score of the scoring team. A team already has 12 points. What rule represents the number of points as an arithmetic sequence when n is the number of touchdowns scored? A(n) =

asked by Charlotte on November 14, 2013
88. ## Grammar

To writeacher, Can you please explain what you refer to the following: The following sentences need to be under the rule of Punctuation within sentences-hyphen. If the sentences need no change i have to write no change. 7. You will need to write both

asked by Jasmine82 on November 13, 2006
89. ## Maths

In an A.P ratio of 3rd term and 5th term is 3:7. a)Find the ratio of the 4th and 6th term? b)Find the ratio of the 6th and 12th term?

asked by Liji on January 22, 2014
90. ## Math

1)AP has U6=12.5 and U19=32 a+5d=12.5 (&) a+18d=32 (2) (2)-(1), d=1.5 therefore, a=5 (a)What is the nth term?Tn=5+(n-1)1.5 (b)What is the sum of 4 terms between U10 and U13 inclusive? 2)Un=1/2^n-3 (a)What is the nature of this sequence? (b)Calculate the

asked by Anonymous on April 19, 2008
91. ## Math

The eleventh term of an A.P.with positive terms is four times its third term and the product of thord te and eleventh term is 256.Find the A.P.

asked by Lakshya Tomar on December 14, 2016
92. ## Help ASAP calculus

Which is the 7th term in the sequence of the squares of all odd numbers starting from 1? 144 169 196 200 225

asked by David on November 28, 2012
93. ## kumasi polytechnic

In A.P the difference between the 8th term and 4th term is 20,and the 8th term is one and half times the 4th term.Find the common difference, and the first term.

94. ## Grammar

I need someone to help me correct this and let me know if its correct. Under the rule of punctuating within sentences-square brackets. 1. The sixth-grader had written in his essay that "his school experience had been deplorable [deplorable]. My answer: The

asked by jasmine82 on November 15, 2006
95. ## Math

1)Find the standard deviation of the data set to the nearest tenth. (21,13,18,16,13,35,12,8,15) A)16.8 B)7.8 C)7.3 D)5.7 I chose C mean = 21+13+18+16+13+35+12+8+15/9 16.8 variance = (21-16.8)^2 = 17.64...did that with the rest and added them to get sqrt

asked by Jon on February 23, 2008
96. ## math

The third,fourth and eight term of A.P form first three consecutive term of G.P.if the sum of the first ten term of A.P is 85.calculate the first term of both A.P and G.P,common ratio and sum of 5 term of G.P

asked by zaituni on June 19, 2017
97. ## math

The third,fourth and eight term of A.P form first three consecutive term of G.P.if the sum of the first ten term of A.P is 85.calculate the first term of both A.P and G.P,common ratio and sum of 5 term of G.P

asked by zaituni on June 19, 2017
98. ## M@them@tcs

on @ Gp.the 4th term exceed 3rd term by 72 nd 3rd term exceeds 2nd term by 24.fnd the frst four term of the progressn.

asked by Muhmmed sheu on October 17, 2015
99. ## math

Please help iv been stuck on these for two days! 1. Write an expression to describe a rule for the sequence. Then find the 100th term in the sequence. 3,10,17,24,31,38 ANSWERS: A) n+7;707 B) 7n:700 C) 7n-4;696 ** D) 6n-4;596 2. Write a rule for the

asked by anonymous on May 15, 2015
100. ## maths

The thirteenth term of an arithmetic progrssion os 27 and the seventh term is three timees the second term. tind the first term,common difference and the sum of the first ten terms

asked by De-Graft on November 6, 2010