1. Math

    5 distinct positive reals form an arithmetic progression. The 1st, 2nd and 5th term form a geometric progression. If the product of these 5 numbers is 124 4/9, what is the product of the 3 terms of the geometric progression? Note: The phase "form an

    asked by Shin on May 11, 2013
  2. Math (Geometric Progression)

    5 distinct positive reals form an arithmetic progression. The 1st, 2nd and 5th term form a geometric progression. If the product of these 5 numbers is 124 4/9, what is the product of the 3 terms of the geometric progression? Note: The phrase "form an

    asked by Shin on June 22, 2013
  3. 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
  4. math

    the 3rd term of a geometric progression is nine times the 1st term.if the 2nd term is one-twenty fourth the 5th term.find the 4th term.(my solution so far).ar^2=9a r=sqr of 9 r=3.help me find the 1st term

    asked by james on November 28, 2014
  5. Maths

    The 5th term of an arithmetic progression is 3times of 2nd term and 12th term exceeds 2times of 6th term by 1. Find the 16th term

    asked by Anonymous on December 5, 2016
  6. Maths

    The 5th term of an arithmetic progression is 3times of 2nd term and 12th term exceeds 2times of 6th term by 1. Find the 16th term

    asked by Anonymous on December 6, 2016
  7. Maths

    The 5th term of an arithmetic progression is 3times of 2nd term and 12th term exceeds 2times of 6th term by 1. Find the 16th term

    asked by Anonymous on December 5, 2016
  8. math

    The 3rd term of a geometric progression is nine times the 1st term.if the 2nd term is one twenty fourth the 5th term.find the 4th term.(there is a mistake in the 2nd to the last statement.help locate the mistake{final answer 4th term =48).i solved to this

    asked by james on November 28, 2014
  9. math

    The 10th term of an arithmetic progress in 28 and the 7th term is 19.calculate the 1st,2nd and 3rd terms of the progression

    asked by Kamogelo on January 19, 2016
  10. Math

    Find the arithmetic sequence whose 1st term is 1 and the 1st, 2nd and 6th terms form a geometric sequence

    asked by Gly on July 16, 2017
  11. maths

    The sum of first 6 terms of an Arithmetic progression is 6 the product of 2nd term and 5th term is -80 . Find the terms of A.P.

    asked by Anonymous on October 9, 2015
  12. maths

    The sum of first 6 terms of an Arithmetic progression is 6 the product of 2nd term and 5th term is -80 . Find the terms of A.P.

    asked by mahesh p on September 25, 2016
  13. Math

    A sequence is called an arithmetic progression of the rst order if the di erences of the successive terms are constant. It is called an arith- metic progression of the second order if the di erences of the successive terms form an arithmetic progression of

    asked by Bhupendra on May 11, 2012
  14. math C2 sequences and series

    The eight,fourth and second terms of an arithmetic progression form the first three terms of a geometric series. The arithmetic progression has first term A and common difference d, and the geometric progression has first term G and common ratio r. a)Given

    asked by Stephan on January 2, 2017
  15. Grammar Advisor

    I just cannot figure out if these answers are correct or not. Can you please help me? 78. If the sound system hadn’t failed, last night’s show would have been better. This is a correct sentence using the 1st conditional form. x This is a correct

    asked by William on September 26, 2013
  16. conditional sentence

    1. If the sound system hadn't failed,last night's show would have been better a. this is a correct sentence using the 1st conditional form b. this is correct sentence using the 2nd conditional form C. this is a correct sentence using the 3rd conditional

    asked by Jim Collum on June 12, 2013
  17. 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
  18. arithmetic progression

    four positive integers form an arithmetic progression . if the product of the first and the last terms is 70 and the second and third terms are 88, find the first term

    asked by Superstix on March 30, 2016
  19. Math

    Three numbers form a geometric progression. If 4 is subtracted from the third term, then the three numbers will form an arithmetic progression. If, after this, 1 is subtracted from the second and third terms of the progression, then it will again result in

    asked by Anonymous on December 30, 2015
  20. math

    The 3rd term of an Arithmetic Progression is 10 more than the first term while the fifth term is 15 more than the second term. Find the sum of the 8th and 15th terms of the Arithmetic Progression if the 7th term is seven times the first term.

    asked by Toba on May 8, 2016
  21. math

    if 4th term of an arithmetic progression is 3 times the 1st term nd 7th term exceeds twice the third term by 1. find the first term and common difference

    asked by anandita on April 20, 2015
  22. Math

    Name School Team Event 3: Logic and Reasoning (with calculators) 5th/6th grade Math Meet ‘08 For each number pattern, fill in the next five terms. (2 pts. each blank) ANSWER KEY 1st term 2nd term 3rd term 4th term 5th term 6th term 7th term 8th term 9th

    asked by Anonymous on March 30, 2012
  23. maths

    the first term of an arithmetic progression is-4 and 15th term is double the 5th term. find the 12th term.

    asked by cliff on August 17, 2018
  24. math

    The first, the third and the seventh terms of an increasing arithmetic progression are three consecutive terms of a geometric progression. In the first term of the arithmetic progression is 10 find the common difference of the arithmetic progression

    asked by kudu on February 2, 2015
  25. math

    calculate the first ten term of an Arithmetic progression whose 5th term is 24 and the difference the 7th and 10th term is 15

    asked by Lazarus on March 22, 2017
  26. Mathematics

    The first term of an Arithmetic Progression is -4 and the 15th term is double the 5th. Find the 12th term of the AP

    asked by KAdila on October 25, 2016
  27. math

    The sum of the 1st nine terms of an arithmetic series is 216. The 1st,3rd and the 7th terms of series form the 1st three terms of a geometric series. Find the 1st term and the constant difference of the arithmetic series ?

    asked by mpho makua on August 14, 2016
  28. Math,science

    The 5th term of an arithmetic progression is 23 and the 12th term is 37.find the third term and common different

    asked by Glory on February 27, 2017
  29. math

    The first term of an arithmetic sequence is 2.The 12th term in the progression is 9 times bigger than the 2nd term. Find the common difference d.

    asked by John on February 17, 2016
  30. math

    The second term of an arithmetic progression is 50 and the 5th term is 65.calculate the value of the 40th term

    asked by Trevor on February 28, 2016
  31. additional mathematics

    if the 2nd term and the 4th term of an arithmetic progression are 15 and 23 respectively, find the first term and the common difference

    asked by yoyo on November 30, 2016
  32. math

    The 5th term of an Arithmetic Progression is 8 and the 12th term is 50. Determine the sequence

    asked by marry on April 18, 2015
  33. Mathematics : Arithmetic Sequence

    The 5th term and the 8th term of an arithmetic sequence are 18 and 27 respctively. a)Find the 1st term and the common difference of the arithmetic sequence. b)Find the general term of the arithmetic sequence.

    asked by Charmian on September 7, 2008
  34. Math

    The 6th term of an arithmetic sequence is 3 times the 2nd term. Prove that the 10th term is twice the 5th term. tn=t1+(n-1)d

    asked by Naomi on September 11, 2015
  35. quine

    The 2nd and 5th term of a geometric progression are - 6 & 48 find the sum of the first four term respectively

    asked by opeyemi on November 12, 2015
  36. math

    in an AP the 10th term is 54 and 5th term is 4 times the 2nd term . Find the 1st term 'a' and common difference 'd'

    asked by jomon on February 4, 2014
  37. arithmetic

    In an arithmetic progression the sum of the first 10 terms is 50 and the 5th is three times the second term. Find the fisrt term and the common difference.

    asked by Bless on April 12, 2011
  38. maths

    a ball is dropped on the ground.The time interval between the 1st and 2nd bounce is 1.2s.The interval between the 1st and 2nd and 3rd bounce is 0.9s.Assume that successive time intevals form a geometric progression with an infinite number of terms.Hence

    asked by eze on October 27, 2017
  39. math

    1) If the number 1,1/3,1/9, are terms of Geometric progression. Find its common ratio 2) If the second term of Geometric progression is equal to 3, and the 5th term is equal to 81/8. Find the 7th term. 3)If x,y,3 is a Geometric progression. Find the value

    asked by bogoss on March 12, 2011
  40. prasanna high school

    Subject:maths. question: the sum of first 6terms.of an aritmetic progression is 6.the product of 2nd term & 5th term is -80 find the terms of A.P.

    asked by Anonymous on October 9, 2015
  41. math

    The 2nd and 5th term of G.P are 2/3 and 1/2 respectively.what is the 1st term,the 4th term and the 7th term

    asked by hauwa on October 26, 2017
  42. math

    Three numbers form a geometric progression. If the second term is increased by 2, then the progression will become arithmetic and if, after this, the last term is increased by 9, then the progression will again become geometric. Find these three numbers.

    asked by Anonymous on January 28, 2017
  43. Math.G.P

    The 1st term of a G.P is equal to x-2,the 3rd term is x+6 and the arithmetic mean of the 1st and 3rd terms stands in the ratio to the 2nd 5:3.find the value of x.

    asked by Miracle on February 14, 2014
  44. Maths

    1..The first 2 terms of a geometric progression are the same as the first two terms of an arithmetic progression.The first term is 12 and is greater than the second term.The sum of the first 3 terms od the arithmetic progression is 4/3 less than the sum of

    asked by Lucas on February 3, 2013
  45. Math

    If the 2nd and 5th term of a geometric progression are -6 and 48 respectively. Find the sum of the first four terms.

    asked by Kelvin A. on February 18, 2017
  46. Math *URGENT

    Please give the answers and solutions for each. 1.If the second term is 2 and the seventh term of a geometric sequence is 64, find the 12th term. 2. Which term if the geometric sequence 18,54,162,486,... is 3,188,646? 3. Determine the geometric mean of 8

    asked by Aliza on December 21, 2012
  47. algebra

    if 1, 2, 7 and 20, respectively, are added to the first terms of an arithmetic progression, a geometric progression of four terms is obtained. find the first term and common difference of the arithmetic progression the answers are both 3 .. but i don't

    asked by Sam on April 27, 2016
  48. Sequence

    Find the common difference and a formula formula for the nth term of the arithmetic sequence; 6, 2, -2, -6, -10,...a sub n = a)6-4n b)6-2n c)10-2n d)10-4n I think it is c but want to check. Ao is 10, then each term subtracts 4n from it....n=1, ... well if

    asked by raven31792 on March 9, 2007
  49. 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
  50. maths

    What is the smallest positive common difference of a 6-term arithmetic progression consisting entirely of (positive) prime numbers?

    asked by rohit on March 21, 2013
  51. AP Calculus

    The 9th term of an arithmetic progression is 4+5p and the sum of the four terms of the progression is 7p-10, where p is a constant. Given that common difference of the progression is 5, find the value of p.

    asked by Watermelon on December 1, 2011
  52. src

    the 4th term of an arithmetic progression is 27 and the sum of the 1st and 4th term is 42. What is the third term

    asked by samad on July 26, 2015
  53. Maths

    The 5th term of an exponential sequence is 4 and of 2nd term is 35(¡)find the 3rd term (¡¡)the 6th term (¡¡¡)the sum of the first 5th term?

    asked by Job on May 17, 2011
  54. conditional sentence

    1. If the sound system hadn't failed, last night's show would have been better. a. this is a correct sentence using the 2nd conditional form b. this is a sentence using the 3rd conditional form Answer a. 3. if the club's manager agrees, they'll play a few

    asked by Jim Collum on June 12, 2013
  55. Math

    The third term of a geometric progression of positive terms is 18 and the fifth term is 162 Find the common ration and the first term? Write an expression for the Nth term of the progression? Find the sum of the first 8 terms of the progression??

    asked by Emma on June 14, 2017
  56. math

    The 3rd term of a geometric progression is nine times the first term.if the second term is one-twenty fourth the 5th term.find the 4th term. solution ar^2=9a r=sqr of 9 r=3.pls help me on how to get the first term(a)

    asked by james on November 27, 2014
  57. math

    The 1st,5th,13th term of an arithmetic sequence are the first 3 terms of geometric sequence with a common ratio of 2. If the 21st term of the arithmetic sequence is 72, calculate the sum of the first 10 terms of the geometric sequence.

    asked by zack on April 9, 2015
  58. c$s college

    the first term of an arithmetic progression is 3 and the fifth term is is 9.find the number of terms in the progression if the last term is 81

    asked by Umaru Monsurat on November 4, 2015
  59. Mathematics

    The 25 term of an Arithmetic Progression is 7 1/2 and the sum of the first 23 terms is 98 1/2. Find the i. 1st term ii. common difference iii. sum of the first 30 terms

    asked by Jamiu on December 12, 2013
  60. FURTHER MATHEMATICS

    The 5th term of an A.P is 3times the first.find the sum of the first 8 term of progression.given that 1/4 of 5th termis9

    asked by FADIPE JANET on January 17, 2018
  61. 9th grade algebra (sequences)

    Can you check my homework please? Given the following representations, tell whether it's arithmetic/geometric, find the difference/ratio, find the explicit formula, find the recursive formula, and the given term. (This whole question was in the form of a

    asked by Alexis on January 17, 2017
  62. Trig/Precalc

    Two questions that I would really appreciate some hints on: 1) Circles with centers (2,1) and (8,9) have radii 1 and 9, respectively. The equation for a common external tangent can be written in the form y=mx+b with 0

    asked by majorbill on January 21, 2015
  63. math

    in an arithmetic sequence whose first term is 4, the 1st, 3rd and 7th terms form consecutive terms of geometric sequence, find the sum of the first three terms of the arithmetic sequence

    asked by selina on December 20, 2015
  64. math

    An arithmetic progression as the same first and second terms as the geometric progression. Find the sum of the first 20 terms of the arithmetic progression. How do I do this? I tried to find the common ratio for G.P. and then substitute it to find the 20th

    asked by lin on September 14, 2016
  65. math

    Neelesh is fond of playing number games. Once when his friends were present he challenged them. He said that he has thought of a five-digit number and anyone who guesses it correctly can use his cycle for a full day. ‘To help you,’ he said, ‘I shall

    asked by gayathri on August 13, 2016
  66. math

    The first and the last terms of an Arithmetic Progression are 6 and 171 in that order. If there are 14 terms, find the 16th term of the Arithmetic Progression.

    asked by Henry on May 8, 2016
  67. arithmetic

    Determining the first three terms of an ArithmetiC progressionof which the (a.)10th term is 31 and the 15th term is 49 (b.)7th term is 3 and 12th term is -3 (c.)5th term is 8 and the 11th term is -28 (d.)9th term is7+9x and d=2x,Show all calculations

    asked by Thandi Mstletoe on January 27, 2015
  68. math

    the fourth term of an arithmetic progression is equal to 3 times the first term and the seventh term exceeds twice the third term by 1 find the first term and the common differrence

    asked by kruthi on February 7, 2014
  69. maths

    1) The first term of arithmetic progression is -20 and the sum of it's term is 250. find it's last term if the number of it's terms is 10 2) Find the fifth term from the arithmetic progression -12, -9, -6 hence find the sum of it's first fifty terms. 3)

    asked by Amir khan on September 25, 2011
  70. math

    in an arithmetic sequence the common difference is equal to 2.the first term is also the first term of a geometric sequence. the sum of the first 3 terms of an arithmetic sequence and the sum of the first 9 terms of an arithmetic sequence form the 2nd and

    asked by Brainblocked on January 30, 2015
  71. Pre-Algebra

    1)(6.0 × 10 to the 5th power) × (3.0 × 10 to the 4th power) A) 18 × 10 to the 20th power. B) 18 × 10 to the 9th power. C) 1.8 × 10 to the 20th power. D) 1.8 × 10 to the 9th power. 2)(5 × 10 to the -2 power) ÷ (2 × 10 to the 3rd power) A) 2.5 ×

    asked by Audrey on September 11, 2018
  72. Math

    the 2nd term of a g.p is 12 more than the 1st term,given that the common ratio is half of the 1st term find the third term of the g.p

    asked by ABIA on November 11, 2018
  73. pchs mankon

    A man make 20 deposit into an account which is set to be in an arithmetic progression if the 11 term is twice the 15 term and the first term is 10000frs a) fine the common difference b) the 11 term

    asked by samson on September 11, 2015
  74. maths

    the sum of first 8 terms of an arithmetic progression is 156.the ratio of its 12th term to its 68th term is 1:5.calculate the first term and the fifteenth term. please help this questions please.

    asked by simranpreet on December 3, 2012
  75. arithmetic

    in an arithmetic progression the 13th term is 27 and the 7th term is three times the second term find;the common difference,the first term and the sum of the first ten terms

    asked by gaya on March 8, 2016
  76. math

    In how many positive four-digit integers that are not multiples of 1111 do the digits form an arithmetic sequence? (The digits must form an arithmetic sequence, in order. For example, the number 5137 does not count.)

    asked by Lola on May 26, 2018
  77. Math

    The fifth term of an arithmetic progression is three times the second term,and the third term is 10.a)What is the first term,b)the common difference and c)the 15th term?

    asked by Bethold on January 27, 2013
  78. Math - algebraish

    hey how do we convert y=mx+b to standard form? the standard form of the equation of a straight line is usually considered to take this form Ax + By = C, where A,B, and C are integers and A is positive. So if your equation is in the slope-yintercept form

    asked by gorden on April 10, 2007
  79. Math

    Find the 10th term of a nonconstant arithmetic sequence whose 1st term is 3 with the 1st, 4th, and 13th term forming a geometric sequence. I've tried doing it differently everytime, but I always come to a dead end..

    asked by Anon on March 14, 2015
  80. Math

    K-4 1st-11 2nd- __ 3rd-30 4th-25 5th-10 6- 1 BEST prediction for the number of days testing, for 2nd grade? 15 20

    asked by Jocie on October 1, 2015
  81. geometric progression

    the 3rd term of a gpis 10 and the 6th term is 80 find the common ratio No2 if the 2nd term of a gp is 4 and the 5th term is 1over 16,the7th term is_

    asked by jessica on November 18, 2014
  82. math

    The third,sixth and seventh terms of a geometric progression(whose common ratio is neither 0 nor 1) are in arithmetic progression. Prove dat d sum of d first three is equal to d fourth term

    asked by toyinbo on March 6, 2015
  83. value

    the 3rd term of a gp is 63 and 5th term is 567.find the sum of the 6th term of the progression

    asked by value on February 20, 2017
  84. MATHEMATIC DEPARTMENT

    The second, third and ninth terms of an arithmetic progression forms the first, second and third terms of a geometric progression. Find the common ratio and hence the eleventh term of geometric progression.

    asked by Mr. Bett on April 20, 2015
  85. Maths

    2,x,y are the first three terms of an arithmetic sequence.If the 2nd term is decreased by 1.The three terms will form a geometric sequence.calculate x and y and my working out is that if i said x-1

    asked by Luhle qwabe on June 16, 2015
  86. A.P AND G.P AND A.M AND G.M

    Find the arithmetic progression and sum of its first 20 terms whose arithmetic mean and geometric mean between first and third term is 10 and 8 respectively

    asked by Rachana on February 16, 2016
  87. progressions

    Find the arithmetic progression and sum of its first 20 terms whose arithmetic mean and geometric mean between first and third term is 10 and 8 respectively

    asked by Rachana on February 16, 2016
  88. math

    what is the sum of the 1st 10 terms of the arithmetic series that has a 10th term of 50 and a 1st term of 5

    asked by roberto on January 24, 2011
  89. Math

    The fifth term of an arithmetic progression is 19 and the fourteenth term is 15. Find the, first term, common difference, and sum of the first eighty terms.

    asked by Destiny on December 7, 2015
  90. math

    The second term of an arithmetic progression is 8 and the eleventh term is -10 Find the first term, the common differrnce and sum to 15 terms

    asked by may on May 9, 2016
  91. Utech

    The 9th term of an Arithmetic Progression is 8 and the 4th term is 20. Find the first term and the common difference.

    asked by Jennifer on May 2, 2012
  92. Math.

    The 4th term of the arithmetic progression is15 and the9th term is 35 find the 15th term.

    asked by Emeka on April 28, 2016
  93. Maths

    If 9th term of an arithmetic progression is 0, prove that its 29th term is double the 19th term.

    asked by Anonymous on January 9, 2014
  94. Advanced algebra

    Find the 7th term of geometric progression if the second term is 75, the 5th term,3/5.

    asked by James on December 13, 2015
  95. mathematics

    if7 times the 7th terms ofan arithmetic progression is equal to 11 time is 11th terms, show that its 18th term is 0 can you find the 1st terms andthe common difference -justify your answer

    asked by rajeswari on April 4, 2016
  96. Algebra/Number Theory

    In a sequence of four positive numbers, the first three are in geometric progression and the last three are in arithmetic progression. The first number is 12 and the last number is 452. The sum of the two middle numbers can be written as ab where a and b

    asked by John Berkhamp on July 23, 2013
  97. Can someone help me?!

    The 1st, 5th and 13th terms of an arithmetic sequence are the first three terms of a geometric sequence with a common ratio 2. If the 21st term of the arithmetic sequence is 72, calculate the sum of the first 10 terms of the geometric sequence.

    asked by Jm on January 3, 2013
  98. maths

    find the 20th term of an arithmetic progression whose 6th term is 3 and 14th term is 19

    asked by thabang on June 12, 2013
  99. maths

    find the 20th term of an arithmetic progression whose 6th term is 3 and 14th term is 19

    asked by thabang on June 12, 2013
  100. physics

    Calculate the magnitude and direction of the Coulomb force on each of the three charges connected in series: 1st - 6 micro Coulombs (positive charge) 2nd - 1.5 micro Coulombs (positive charge) 3dr - 2 micro Coulombs (negative charge) Distance between 1st

    asked by andrew on May 21, 2012