1. arithmetic

    Find the sum of the first 40 terms of the arithmetic sequence. 19, 24, 29, 34

    asked by Lindsay on November 17, 2010
  2. math

    the quotient of 100 by 4 is equal to yhe sum of 8?

    asked by race on February 29, 2016
  3. Please Help ! Calculus

    Find two numbers whose sum is 42 and whose product will be at the largest possible.

    asked by Wawen on April 10, 2016
  4. Algebra

    For what value of x is the double product of the binomials x+2 and x–2 is 16 less than the sum of their squares?

    asked by Anish Panda on February 27, 2016
  5. Math

    What is the sum of all prime numbers less than 500 with only 3s and 4s as digits

    asked by Mags on January 10, 2017
  6. Maths

    X varies directly as the product of u and v and inversely as their sum. If x=3 when u=3 and v =1, what is the value of x if u=3 and v=3

    asked by Ifeoluwa on February 18, 2016
  7. Math

    Use induction to prove the sum of the first n odd numbers, or 1 + 2 + 3 +....+ (2n 1) = n^2

    asked by Hu on September 23, 2012
  8. math

    For all x greater than 2, let *x be defined as the sum of the positive integers less than x. What is the value of *16 - *13?

    asked by Carly on September 28, 2013
  9. math

    find the sum of the first 10 terms of geometric series with a[2]=(1)/(2) and r=2

    asked by Anonymous on May 3, 2012
  10. math

    What would the expression be if the problem was "the sum of four consecutive numbers." ?

    asked by Samantha on January 13, 2014
  11. MATH I NEED HELP PLEASE!

    DETERMINE THE SUM OF THE FOLLOWING GEOMETRIC SERIES A. -1/32+1/16-...+256 B. 50 over Σ 8(.5)^n-2 where n=1

    asked by Please help me! on January 20, 2011
  12. Math

    Use a sum formula to show that cos(2u)=2sinucosu

    asked by Matt on April 18, 2016
  13. Math

    what is the sum of the solutions of the equation |2x-7|=11? A) -9 B) -7 C) 5 D) 7 E) 9 ***What is the most efficient way to solve this?

    asked by David on March 1, 2014
  14. Math

    How you solve this in inequality form? Six less than or equal to the sum of 4 and -2x.

    asked by Jake on September 25, 2013
  15. Math

    show the make -a- ten fact you used with sum?

    asked by Frankie on October 19, 2010
  16. Math

    Prove that the sum of angles of a quadrilateral is 360.

    asked by Gauri on July 18, 2018
  17. maths

    Find all possible pairs of two natural numbers whose sum is 77 and their g.c.d. is 7

    asked by sanjay on December 6, 2016
  18. math

    a geometric progression is given as 8/81-4/27+2/9.find the sum of the first five terms.

    asked by favour on November 12, 2018
  19. Maths,

    A certain is to be shared among three brothers ,one of them gets 2/5 of it,another gets 1/4 of it and the third one gets #2.10k. How much is the sum of money?

    asked by Pee on February 19, 2017
  20. math

    without adding, how do you know that the sum of 36.179 and 8.63 will have a 9 in the thousandths place?

    asked by jamysha on September 25, 2013
  21. Trig

    What is the sum of the arithmetic series where n=100 , t1=7 and t2=205

    asked by Kiki on April 29, 2014
  22. maths

    Find all possible pairs of two natural numbers whose sum is 77 and their g.c.f is 7

    asked by sanjay on February 3, 2017
  23. 5th grade

    The sum of my two digits is 13. I am not divisible by 2. List all possible numbers I could be.

    asked by Tim on September 21, 2009
  24. math

    Find the sum of the arithmetic progression 4 + 9 + 14 + 19 + …….94 + 99 + 104

    asked by dan on June 13, 2012
  25. Algebra 2

    How would I find the sum of the geometric series given? 1/5 - 1/25 + 1/125

    asked by Greg on May 12, 2012
  26. math

    Find three even consecutive integers such that the sum of the first two exceeds the third by 16.

    asked by hino on December 6, 2016
  27. Math

    How do I write the equation for this: sum of ten and nineteen

    asked by Lee on June 25, 2016
  28. math

    how can you determine whether a sum of several numbers such as 13plus45plus24plus17 is even or odd?

    asked by madeline on September 9, 2012
  29. algebra

    Find the sum: -15+4+(-10) 22+(-4)-15 Can you show me work too I think that'll help me understand better.

    asked by Cookie on March 16, 2015
  30. Math

    How do I write the equation for this: sum of ten and nineteen

    asked by Lee on June 25, 2016
  31. Math

    Find two mixed numbers so that the sum is 7 2/4 and the difference is 5

    asked by Caitlin on March 10, 2016
  32. maths

    divide the sum of 13/5 and -12/7 by the product of -31/7 and 1/-2 and add the result to (-2/3-1/3)

    asked by shehzad on April 19, 2015
  33. Partial Sums

    Suppose that the nth partial sum of the series   ∞ Σn=1 an   is  sn =   5n − 2 5n + 2  

    asked by Tim on January 18, 2017
  34. Algebra

    Subtract (5x²-6x+4) from the sum of (-3x²+3x+1) and 2x²-5x+7)

    asked by Gler on June 15, 2016
  35. math

    find the sum of each arithmetic series (a)5+8+11+....to 20 terms

    asked by machaka on January 22, 2017
  36. Further math

    If the sum of the first n terms of the series 4 + 7 + 10 + ... is 209, find n.

    asked by Ayomide on April 16, 2016
  37. 5th grade math

    Rounded to the nearest tenth, what is the sum of 47.368 + 58.75?

    asked by kim on December 15, 2013
  38. rutgers

    how do you get a standard deviation of 1.04563 when the sum of x=238, n=25 and the mean is 9.52

    asked by tangela on February 22, 2014
  39. math

    Find three consecutive odd integers whose sum is -33.

    asked by breanna on September 24, 2012
  40. Algebra 2

    5+(-5/2)+(5/4) Sn=189 Find n for the given sum if the geometric series

    asked by Rachel on May 7, 2012
  41. math

    There are 4 positive numbers whose sum is 60. Their maximum product will be :

    asked by ataur on January 13, 2011
  42. algebra

    find 3 consecutive integers such that the sum of the squares of the first and second is 2 more than the third

    asked by luke on April 10, 2015
  43. math

    If the sum of n terms of the series 4+7+10+... is 209, find n

    asked by Ayomide on April 16, 2016
  44. Math

    Write an equation. The sum of 2 consecutive integers 48.

    asked by lostinmathclass on April 20, 2009
  45. trig

    write sin4xcos2 as the sum or difference of two functions.

    asked by Calvin on May 17, 2012
  46. math

    What are some strategies a student might use for finding the sum of 7 + 9 if they did not know the answer?

    asked by Anonymous on March 24, 2011
  47. Algebra

    Is it possible to factor a sum of two squares by using real numbers?

    asked by Liz on July 26, 2012
  48. introduction to programming

    Write a program to find the sum of the series: 1/12+1/22+1/32+…..1/n2.

    asked by jamshaid on April 21, 2014
  49. math

    For all x greater than 2, let *x be defined as the sum of the positive integers less than x. What is the value of *16 - *13?

    asked by Anonymous on September 28, 2013
  50. Math

    What is the 5th of 9 consecutive whole numbers whose sum is 153 is what?

    asked by Lilly on December 9, 2016
  51. Math

    Find three consecutive even integers whose sum is 252

    asked by Ciara on June 13, 2012
  52. maths

    Calculate S20 if the sum of the squares of the first integers is given by Sn=n(n-1)(2n+1)/6

    asked by nana on February 5, 2017
  53. Math

    Write an equation. The sum of 2 consecutive integers 48.

    asked by lostinmathclass on April 20, 2009
  54. aksu

    Find the sum of vectors A=5m

    asked by offiong christiana on February 6, 2017
  55. Math's

    Please can you help me answer there questions? You have to do the sum's in the bracet's first. 2 (4a+7) 3 (2f+B) 5 (7+2x) 6 (2b-6) 12(6q-4) Thank's for helping!

    asked by Channel on February 25, 2009
  56. MATH

    IS ABOUT ESTIMATE THE SUM ROUNDING TO THE THOUSANDS PLACE

    asked by KARELIN GONZALEZ on January 13, 2011
  57. Algebra help please!

    Write the sum of the two vectors as an ordered pair. (6,-5) and (3,3) A. (-,-2) B. (6,1) C. (1,6) D. (-2,9)

    asked by Kirston on May 7, 2014
  58. math

    estimate a range for the sum of 4.987, 28.27, 0.098

    asked by libby on October 21, 2018
  59. math

    What is the angle sum of a regular polygon with 7 sides

    asked by danny on August 30, 2012
  60. maths

    find the sum of 2 , 3 and 1 - - - 5 4 10 give me the total answer

    asked by dhruv on April 12, 2011
  61. Polynomials

    Can someone please help me get the sum difference and product of this problem I am so lost x^3+ 2x-5∶ x^4-x^3+ 3x^2- 2x+3

    asked by albert on September 19, 2013
  62. Algebraic Expressions

    ic expression for the following word phrase product of 7 and the sum of 3 and z is it 3+7 ---- 7 please help Thank you

    asked by Alex on September 23, 2013
  63. Calculus

    Let u = (-2,3) and v = (5,-6). Find the sum and the dot product of these two vectors.

    asked by Brock on July 5, 2012
  64. math

    Find a pair of integers with a product of -84 and a sum of 5?

    asked by jarron on August 8, 2013
  65. math

    Find a pair of integers with a product of -84 and a sum of 5?

    asked by jarron on August 8, 2013
  66. SCIENCE

    HOW MANY TERMS OF GP 1,2,4,8..... GIVE A SUM GREATER THAN 500.

    asked by ENOCH on April 1, 2016
  67. math

    Find a pair of integers with a product of -84 and a sum of 5?

    asked by jarron on August 8, 2013
  68. probability

    Two dice can be tossed in 36 ways. In how many of these is the sum equal to: a.) 4 b.) 7 c.) 11

    asked by Sharon on October 7, 2009
  69. mathematics

    how many terms in the series 18-16-13-....must be added to give a sum of 44?

    asked by ellen mkhwanazi on February 2, 2014
  70. algebra 1

    The sum of two consecutive even integers is -34 . What is the smaller integer?

    asked by Alex on March 17, 2014
  71. Math algebra

    Write the following as a sum and/or difference of logarithms log((∛x^2+1)/(x^2-1))

    asked by Josh on May 1, 2012
  72. Pre-Algebra

    Write an expression for the model. Find the sum. A. 2 + 3; 5 B. 2 + (–3); 1 C. 2 + (–3); –1 D. –3 + 2; 5

    asked by Storm on April 30, 2014
  73. math

    Find the sum of the first 15 terms of the geometric sequence. ∞ Σ 3n − 1 n = 1

    asked by ben on May 13, 2018
  74. pre-algebra

    Difference and sum of cubes; please help me solve this problem; 8t^3 + y^3

    asked by Barbara Passmore on November 22, 2013
  75. pre algebra homework check

    Find the sum or difference. 4s^2-11s+s^2-6s+21 Is it 5s^2-17s+21?

    asked by amy on May 30, 2012
  76. Physics

    Find the sum of vectors A=5m

    asked by Charles on March 8, 2016
  77. Problem solving

    Two numbers that have a sum of 7869 and a difference of 1879

    asked by Anonymous on April 22, 2015
  78. geometry

    the sum of a polygon with(2n-3) sides is 62 righht angles

    asked by Anonymous on May 8, 2012
  79. maths

    If two dice are toced what is the probility of having a sum of 5 as the outcome(a)1/9(b)1/6(c)1/8

    asked by Roy on September 10, 2013
  80. math

    sum of 1 to 198 odd positive intigers

    asked by anil on February 14, 2016
  81. ICT

    write an algorithm to find the sum of two numbers

    asked by ABUBAKARI on November 28, 2013
  82. Math

    Find three consecutive integers such that nine less than three times the third is seven more than the sum of the first and second.

    asked by Kirandeep on October 2, 2013
  83. algebra

    add equation (5x^8 -5z^4+5z^2+3)+(3z^6+4 z^4-9z) simplify answer to sum

    asked by Ann on May 29, 2015
  84. math help

    S is the sum of n integers and A is their average. Which of the following statements is correct? (A) S=A+n (B) S=nA (C) A=nS (D) N=AS (E) None of these

    asked by Tomas on August 7, 2013
  85. Polynomials

    can someone show me how to get the sum, difference and product of this problem 2x^2-1∶ x^3- x^(2 )+ 2^x- 1

    asked by terrance on September 18, 2013
  86. expression help

    which is the sum or difference is equivalent to the following expression 3x-2/9 *fraction*

    asked by Alex on September 24, 2013
  87. Math

    -90+30+-10+(10/3)... Find the sum of the first 10 terms ( Express as a fraction)

    asked by Fonzeworth on May 10, 2009
  88. algebra 2

    what is the sum of the first 11 terms of the arithmetic series in which asub one = -12 and d=5

    asked by kathy on April 6, 2014
  89. statistics

    The sum of the measures of all angles in any 10-gon is how many degrees?

    asked by veronica on May 11, 2011
  90. Polynomials

    can someone show me how to do the sum, difference and product for this problem

    asked by terrance on September 18, 2013
  91. math

    find two numbers whose product is N^2 and whose sum is a minimum

    asked by cheryl on February 14, 2011
  92. Algebra

    find the sum of the infinite geometric series 4+1+1/4+...

    asked by Keonn'a on September 28, 2018
  93. 7th G-Math

    Which two integers have a positive quotient and a negative sum? a. -9 and -3 b. -6 and 2 c. 5 and 1 d. 8 and -4

    asked by Nastia on September 11, 2012
  94. Math

    Can the sum of two mixed numbers be equal to 2? Explain why or why not.

    asked by Hero on February 5, 2014
  95. math

    3. Use benchmark to estimate the sum, difference, or product 14/16 + 1/5 A. 2 B. 0 C. 1/2 D. 1** 4. 5 2/11- 3 2/18 A. 3 B. 1 C. 4 D. 2** 5. 7 1/13 • 4 15/17 A. 28 B.35** C. 48 D. 40

    asked by oof on November 5, 2018
  96. maths

    Find the sum and product of the roots of the following equation. x^2 - 4x + 1 = 0

    asked by Francois on August 14, 2013
  97. maths

    Find all possible pairs of two natural numbers whose sum is 77 and their g.c.d. is 7

    asked by sanjay on December 8, 2016
  98. Math

    estimate the sum or difference by rounding the nearest one 9.87 +4.05

    asked by Winston on November 11, 2010
  99. Geometry progression

    Find the n th term and the sum to n terms of the series: 1+(1+2)+(1+2+2^2)+...

    asked by Warnar on December 7, 2016
  100. MATH HELP ME NOW PLEASE!!

    DETERMINE THE SUM OF THE FOLLOWING GEOMETRIC SERIES A. -1/32+1/16-...+256 B. 50 over Σ 8(.5)^n-2 where n=1 HELP PLEASE!!!!!!

    asked by Please help me! on January 20, 2011