1. math

    The difference between two numbers is 4 and their sum is -7. What is their product?

    asked by Anonymous on August 12, 2015
  2. Math

    What is the sum of the infinite geometric series 15 + 15(1/3)+ 15(1/3)^2 + 15(1/3)^3?

    asked by Alex on September 17, 2014
  3. maths

    how many terms of the series -8,-6-,-4.... make the sum 90?

    asked by bilal qureshi on January 4, 2009
  4. a.p.

    find the sum of the series 1-2+3-4+5-6+...to n terms.

    asked by warnar on December 21, 2016
  5. Precalculus

    Write the sum using sigma notation. -3/8 + 4/7 - 5/6 + 6/5 - 7/4+ 8/3

    asked by Rob on July 2, 2016
  6. Algebra

    Let f (x) = x^2 – 3x + 8 and g(x) = x – 5. Find the sum (f + g) (x) and simplify the results.

    asked by Gertrude on June 23, 2009
  7. math

    Find the sum using mental math 24 + 71 =

    asked by nelson on October 3, 2011
  8. math

    23 + 45 = 68 the sum is even Explain use word and / or numbers

    asked by ryan on September 19, 2011
  9. geometry

    what is the sum of the first 100 positive even numbers

    asked by Tracy on August 24, 2011
  10. algebra 1

    find the sum: (-5) + (-5) + (+7) + (-2) please help its due tomorrow thanks

    asked by ryan on May 19, 2017
  11. math

    How do I find the sum of 256,14,632, and 25

    asked by Chas on April 3, 2013
  12. math

    the sum of 1 half + 1 fourth + 1 eith...

    asked by Anonymous on September 29, 2011
  13. math

    please help! find 3 consective numbers with a sum of 12. find three consective numbers with a sum of 45

    asked by jake on November 20, 2007
  14. math

    Find two numbers (exactly) whose product is 10 and whose sum is 18.

    asked by Anonymous on February 9, 2015
  15. Algebra

    Find the sum of the odd integers from 1 through 49.

    asked by Anonymous on January 10, 2017
  16. arithmetic

    What is the sum of the arithmetic sequence 22, 13, 4 … if there are 28 terms?

    asked by Joe on September 4, 2011
  17. algeBRA!!!

    What is the sum of the rational roots of f(x)=x^3−4x^2+16x−39?

    asked by please help me out!! on April 1, 2013
  18. Calculus

    does the sum e^n / n! converge or diverge? n=1 --> infinity

    asked by Molly on April 1, 2013
  19. 6 grade math

    Estimate a range for each sum example 7.42+13.97+101.2

    asked by Anonymous on October 7, 2010
  20. leg

    plz tell me sum facts about the leg

    asked by khs on November 30, 2007
  21. a.p.

    find the sum of n arithmetic means between x and 3x

    asked by warnar on December 13, 2016
  22. geometry

    What is the sum of the angle measures of a 37-gon?

    asked by Ryan on November 25, 2011
  23. math

    Find the sum of 256, 14, 632, and 25.

    asked by tamara on February 19, 2013
  24. Adding two-digit numbers

    Estimate. Then find each sum. 28 +34 ____

    asked by Anonymous on September 17, 2012
  25. math

    Determine the sum of the folowing series 2+6/7+18/49+...+2(3/7)^8

    asked by Restoration on January 23, 2015
  26. algebra

    what is the quotient of the sum and difference of 370 and 25

    asked by Anonymous on October 5, 2010
  27. maths

    what is the sum of 13th and 56th term

    asked by mumillat on November 22, 2014
  28. math

    find the sum of the 20th term a=6 and r=2/3

    asked by Ali on November 3, 2010
  29. MATH

    What is the sum of the first 70 consecutive odd numbers?

    asked by TRAY on August 29, 2012
  30. math

    Reduce the sum to lowest term possible 7/15+7/15+2/15

    asked by ken on July 12, 2017
  31. math

    what do they mean by find the sum of 28g +14g and how do I do it

    asked by lenny on February 6, 2015
  32. Math

    find the sum of arthmetic progression 12,15,18,,,,,, 84, a=12 d=3 n=?

    asked by sonia on November 1, 2010
  33. Calculus

    Show that the sum of the series ∑n(p^n) from n=1 to infinity (where 0

    asked by Ryan on October 20, 2011
  34. Calculus

    Is sum of sin(pi/n) DV or CV? I don't understand why it is DV.

    asked by Shaniquaa on December 1, 2008
  35. College Algebra

    Penelope is playing a number game with her sister June. Penelope is thinking of a number and wants June to guess it. Five more than two times a number is between 1717 and 2121. Write a compound inequality that shows the range of numbers that Penelope might

    asked by Anonymous on September 8, 2017
  36. Math

    Pedro has two options: he can enter raffle number 1, OR raffle number 2 along with raffle number 3. If Pedro chooses to enter raffle number 1, he can buy up to 100 raffle tickets. Each ticket has a 1 in 50 chance of getting selected. If Pedro chooses

    asked by Lillian on August 6, 2013
  37. Chemistry

    The density of gold is 1.93E4 kg/m3 and the cell volume is 6.78E-26 L. Determine the number of atoms in the unit cell. Note: the number of atoms in a unit cell is a whole number. For the purposes of this calculation, enter your answer to 3 significant

    asked by Thy on February 5, 2008
  38. math

    Phil is making a number cube out of cardboard . He traces one face of the number cube onto a coordinate grid . The coordinates of two opposite vertices of the face are (4, 8) and (12, 16) . What is the surface area, in square units, of Phil’s entire

    asked by Lakshmi on March 26, 2016
  39. Algebra

    Hello all! I had a quick homework question: I have to prove that the output of this always ends up as 1, regardless of the starting number: *Think of a number between 1 and 10. Add 1; double the result; add 3; subtract 4; add 5; halve the result; add 6;

    asked by y912f on June 22, 2014
  40. Statistics

    A number of people were asked how many days they would wait to seek medical treatment if they were suffering pain that interfered with their ability to work. The results are presented in the following table. Number of days: 0 , 1 , 2 , 3 , 4 , 5 Frequency:

    asked by Obi on October 2, 2015
  41. Medical Coding 1

    Please help me with these questions to see if I'm right or close 1. Which of the following ICD-9-CM code groups is used to report the infant status after delivery of a birth event? A. V27.0–V27.9 B. V26.0–V26.9 C. V29.0–V29.9 D. V28.0–V28.9 I

    asked by Alisha M on April 27, 2012
  42. probability

    the digits 0 to 9 P(obtaining a prime number OR obtaining an odd number) P(obtaining a prime number OR obtaining a number divisible by 4) P(obtainig a number divisible by 4 or obtaining an odd number)

    asked by emir on July 15, 2009
  43. Computer program and design

    Design a class called SimpleCalculator using psudoecode that contains public methods named add(), subtract(). Each of the methods accepts two numeric arguments and returns a number that represents the result of the appropriate arithmetic operation. Design

    asked by Kimberly on April 15, 2017
  44. Science

    Consider an atom whose designation is given as 94 Pu 242. How many Protons are found in this atom? http://www.chemicalelements.com/elements/pu.html Protons same in all isotopes. The number of nutrons varies to change to atomic weight there are 94 because

    asked by Jim on April 28, 2007
  45. algebra 2

    Hi i posted this question: the general expression for consecutive multiples of 6 is 6N, 6(N + 1), 6(N +2), etc. find three consecutive multiples of 6 such that 4 times the first exceeds twice the third by 12. and than Bobpursley replied: Let N be the

    asked by lana on July 18, 2007
  46. Math

    A ferry boat holds 800 people. There are 260 people already on the boat. The owner of the boat wants to load several tour groups on. The tour groups come in sizes of 40 people or 50 people. The owner would like an equal number of each size of tour group on

    asked by Kevin on May 22, 2012
  47. Math

    Reasonnablenes the flag that Nico waves has an odd number in the ones place and even number in the tens place.what flag does he wave? Number on racing flag red flag 25 blue flag14 yellow 32 green flag 6 orange flag 17

    asked by mary on October 18, 2011
  48. College Algebra

    Penelope is playing a number game with her sister June. Penelope is thinking of a number and wants June to guess it. Five more thank three times a number is between 23 and 32. Write a compound inequality that shows the range of numbers that Penelope might

    asked by Key on September 9, 2017
  49. Algebra

    Penelope is playing a number game with her sister June. Penelope is thinking of a number and wants June to guess it. Five more thank three times a number is between 23 and 32. Write a compound inequality that shows the range of numbers that Penelope might

    asked by Key on September 9, 2017
  50. Math

    1. Which number is the resolution of m + 90 = 150? a. 50 b. 60 (my answer) c. 140 d. 240 2. Which number is the solution of n/3 = -12? a. -36 b. -4 (my answer) c. 4 d 36 3. Use mental math to find the solution of 19b = 190. a. 10 b. 11 c. 171 (my answer)

    asked by Rylee on November 5, 2016
  51. Math

    A computer program is designed so that, when a number is entered, the computer output is obtained by multiplying the number by 3 and then subtracting 4 from the product. If the output that results from entering a number x is then entered, which expression

    asked by Anonymous on July 23, 2010
  52. Algebra 2

    For a certain type of hay fever, Medicine H has a 30% probability of working. In which distributions does the variable X have a binomial distribution? Select each correct answer. When the medicine is tried with six patients, X is the number of patients for

    asked by Please help me out on October 13, 2016
  53. Math

    A. Write 60 as the sum of two numbers. B. Write 60 as the product of two numbers. C. Write 60 as the product of two factors. In youe expression, write one of the factors as a sum of two numbers. Find an equivalent way to write this expression.

    asked by Abby on October 17, 2017
  54. physics

    A glider of mass m1 = 10.0 kg initially moving towards the right at a speed of v1i = 2.00 m/s on a frictionless airtrack collides with a spring attached to a second glider of mass m2 = 4.0 kg initially moving toward the left with a speed of v2i = 5.00 m/s.

    asked by nicole on November 27, 2006
  55. Calculus

    The approximate rate of change in the number of subscribers to wireless service is given by f’(t) = 1.498t + 1.626, where t represents the number of years since 1990. In 1992 (t = 2) there were approximately 8.893 million subscribers. Find the function

    asked by Corey on December 5, 2015
  56. Algebra

    Keiko is a software saleswoman. Let x represent her total pay (in dollars). Let y represent the number of copies of History is Fun she sells. Suppose that x and y are related by the equation 2200+900x=y. Answer the questions below. Note that a change can

    asked by Stacey on March 26, 2014
  57. math

    a teacher asked her students to think of a number, multiply by 5, and subtract the product from 20 , then she asked them to multiply the resulting difference by the number they first thougt of a) use function notation to express the final answer in terms

    asked by Melissa on September 23, 2011
  58. math

    Match the term with it's meaning real numbers irrational numbers rational numbers integers whole numbers natural numbers radical square root perfect squares cube roots terminating decimals repeating decimals truncate radicand a decimal which can be

    asked by shadow on April 17, 2018
  59. Math

    Each student receives the same number of pencils and the same number of notebooks. This year she gave out 96 pencils and 72 notebooks. Which is the greatest number of students that can be in Ms. Thomas’s class this year?

    asked by amber on October 26, 2016
  60. Pre-Alegebra

    You spin a spinner that is divided into 6 equals parts once and roll the number cube once. Find the probability that the spinner stops on the same number that you roll the number cube?

    asked by Bart on February 1, 2013
  61. algebra

    a bank gives away 1 out of 5 cards evry time a client deposits. there is an equal chance of getting one of the cards. predict the number of times a client will have to make a deposit to get all five cars. which can NOT be considered a trial for the

    asked by Anonymous on March 30, 2013
  62. Series

    One sequence of alternating terms of the series 1+2+3+4+5+8+... forms an arithmetic progression, while the other sequence of alternating terms forms a geometric progression. Sum the first 10 terms of each progression and hence find the sum of the first 20

    asked by youngguru on March 16, 2017
  63. Statistics 2

    To calculate the mean for grouped data, which of the following steps must be completed? a. multiply the number of subjects within each category by the value of that category b. divide the results of the multiplication c. multiply by the number of subjects

    asked by Jim on December 1, 2013
  64. STATISTICS

    To calculate the mean for grouped data, which of the following steps must be completed? a. multiply the number of subjects within each category by the value of that category b. divide the results of the multiplication c. multiply by the number of subjects

    asked by Jim on December 2, 2013
  65. Physics

    A physics student of mass mm = 100 kg gets a summer job painting houses. On his first project, he builds a platform using large pine board with a mass of mb = 60 kg The board has an overall length of L = 8.5 meters and set on two 1 meter tall saw horses so

    asked by Jacob on April 9, 2010
  66. programming ( qbasic)

    i was given this program by my teacher. it converts decimal number to binary number.. Why is that FIX kept in front of (n/2) ...6th line of the program. why is that FIX written and why? i didn't get it CLS INPUT “ENTER A NUMBER”; N WHILE N 0 A = N MOD

    asked by mark on November 3, 2015
  67. ICT

    Indicate the variables used, draw an IPO chart and write an algorithm to solve the problem. Test your algorithm by doing a trace table. • Enter the number of rows of tables in the city hall as well as the number of Tables per row. • Calculate and

    asked by Mr. Louw bought a number of bags at R100. What is on May 10, 2016
  68. Stats

    Determine the following random variables discrete or continuous: a)Number of fish I caught during 2 hours? I said: discrete b)Temperature of a coffee cup? I said: continuous c)Height of a 2-year-old maple tree? I said: continuous d) Number of credit cards

    asked by Ashley on February 8, 2014
  69. Math (help steve)

    Brilli the ant placed the numbers 1,2,…,n in order clockwise around a circle. She can create an infinite sequence A={aj}∞j=0 of integers by letting a0=k∈{1,2,…,n} and constructing ai+1 from ai by taking the integer that is ai positions clockwise in

    asked by Danny on July 16, 2013
  70. math

    Brilli the ant placed the numbers 1,2,…,n in order clockwise around a circle. She can create an infinite sequence A={aj}∞j=0 of integers by letting a0=k∈{1,2,…,n} and constructing ai+1 from ai by taking the integer that is ai positions clockwise in

    asked by Ron on July 16, 2013
  71. math

    Does anyone know how to explain mean, median, mode and range mean?? mean-the average of a group of numbers median-the number that is in the middle in an in order group of numbers mode-most common number in a group of numbers range- the difference or

    asked by Callie on September 20, 2006
  72. Chemistry

    If you divide the molar mass of a compound by the empirical formula mass, what is the result? That division should be VERY close to a whole number. Usually, 0.9 to 1.1 or 1.9 to 2.1 (all depending upon the accuracy and precision of experimental data). That

    asked by Chris on February 4, 2007
  73. Math

    Help me!;/ 1) my numerator is 6 less than my denominator. I am equivalent to 3/4. 2)my denominator is 5 more than twice my numerator. I am equivalent to 1/3. 3)the gcf of my numerator and denominator is 3. I am equivalent to 2/5. 4)the gcf of my numerator

    asked by Berenice chico on October 16, 2011
  74. statistics

    I have just a couple questions I have trouble understanding... can someone please help me? The data below indicate the rankings of a set of employees according to class theory and on-the-job practice evaluations: Theory 1 7 2 10 4 8 5 3 6 9 Practice 2 8 1

    asked by Crystal on December 4, 2013
  75. math

    ) A wierd number is a number that is the product of two consecutive primes, such as 7x11=77 . What is the least common multiple of the 5 smallest wierd number 7) According to an ancient belief, when a friend visits a sick person, 1/70 of his sickness is

    asked by brenton atcheson on February 25, 2007
  76. Math

    We define two numerical operations labeled T and R. The effect of T is to add 1 to a number. For example, if we apply the operation T to the number 2 three times in a row, we obtain 3, then 4, then 5. The effect of R is to find the negative reciprocal of a

    asked by skjhrf on May 30, 2018
  77. Maths

    Express the following quantities as an ordinary decimal number: a) The sun has a diameter of 1.392 * 10^6 I get 1392000. b) 8.4*10^-6 I get 0.000084 Is this right The first one is correct. The second one is incorrect. Your answer is 8.4 *10^-5 you have

    asked by David on June 19, 2006
  78. Math

    The sum of the length, width, and height of a box is 80 cm. The length is 10 cm less than twice the sum of the width and the height, and twice the width exceeds the height by 6 cm. Find the height of the box.

    asked by Anonymous on August 25, 2015
  79. math

    There are 12 girls in one of the fifth grade classes. The number of girls is two-thirds the number of boys, b. The number of boys can be found using the equation 2/3b=12. How many boys are in the class?

    asked by Anonymous on April 4, 2013
  80. Maths Algebra

    The number of boys👦 in a school🏢 is 334 more than the number of girls👧. If the total strength👦👧 of the school🏢 is 572,find the number of girls👧 in the school.

    asked by Sakshi on August 20, 2016
  81. math

    Jame shas an assigned seat for his flight to Denver. The seats on the plane are numbered 1-49. Jame's seat number is an odd number greater than 10 that is factor of 100, What is his seat number for the flight?

    asked by junior on October 2, 2012
  82. geometry

    The Polygon Angle-Sum Theorem states the following: The sum of the measures of the angles of an n-gon is ____. (1 point) (n – 1)180o (n – 2)180o 9. What is the measure of one angle in a regular 16-gon? (1 point) 2,520o 202.5o 157.5o 78.75o 10. The

    asked by josh on December 31, 2012
  83. Math

    Shelly compared the number of oak trees to the number of maple trees as part of a study about hardwood trees in a woodlot. She counted 9 maple trees to every 5 oak trees. Later in the year there was a bug problem and many trees died. New trees were planted

    asked by Katherine on September 19, 2013
  84. Economics

    A monopolist is in long-run equilibrium and earning economic profits equal $100 million. The government imposes a lump sum tax of $100 million on the monopolist. (A limp sum tax is a tax the monopolist must pay regardless of its level of output) Will this

    asked by Jim on December 4, 2011
  85. Math

    You roll a blue number cube and a green number cube. Find P a number greater than 2 on the blue cube and an odd number on the green cube.

    asked by Drea on March 5, 2013
  86. Math--Check my answers

    Choose the word phrase that can be represented by 2 – p. the difference of a number p and 2 the quotient of 2 and a number p 2 more than a number p 2 decreased by a number p **** Which word phrase could represent the variable expression 1/2 a + 4? 4 more

    asked by Anonymous on September 24, 2014
  87. Statistics

    A die is rolled 16 times and the number that appeared for each roll was recorded. Number on die for each roll 5 2 2 6 1 4 6 1 1 3 5 2 2 3 4 4 If this data were to be displayed using a dot plot, what numbers would be displayed along the horizontal number

    asked by Amethyst on August 28, 2017
  88. Math

    A die is rolle 16 times and the number that ad for each roll was recorded. Number on die for each roll 5 2 2 6 1 4 6 1 1 3 5 2 2 3 4 4 If this data were to be displayed using a dot plot, what numbers would be displayed along the horizontal number line?

    asked by Irene on August 30, 2016
  89. BIOSTATISTICS PLEASE HELP

    exercise: The average number of sick days an employee takes per year is believed to be about 10. Members of a personnel department do not believe this figure. They randomly survey 8 employees. The number of sick days they took for the past year are as

    asked by yao on April 1, 2013
  90. math

    Greg has the same number of 1-blocks, 10-blocks, and 100-blocks. He models an even number that is less than 400, what is the number?

    asked by Anonymous on August 14, 2012
  91. math

    it is not less than 40. it is not greater than 70. it is not an odd number. it does not have an even number in the tens place. it does not have a 4 in the ones place. it does not have a 6 in the ones place. what is the mystery number?

    asked by david on October 18, 2012
  92. Matt

    Greg has the same number 1 blocks, 10 blocks, and 100 blocks. He models an even number that is less than 400. What is the number?

    asked by Anonymous on September 17, 2013
  93. Math

    If Greg has the same number of 1-blocks 10-blocks and 100-blocks to model an even number that is less than 400 what is the number?

    asked by Nicole on August 22, 2012
  94. chemistry

    Tantalum metal is produced by reaction of potassium heptafluorotantalate (K2TaF7) with elemental sodium (Na) in a reactor heated to 850oC. The by-products are potassium fluoride (KF) and sodium fluoride (NaF). The reactor is charged with 208.0 kg of K2TaF7

    asked by schoolgirl on March 23, 2013
  95. math

    The number of boys in a certain class exceed the number of girls by 7. If the number of boys is 5/4 of the number of girls, how many boys are there in the class? The choices of answers are: a) 21 b) 28 c) 35 d) 42 e) 63 I figured out that the answer is 35,

    asked by sylvie on February 12, 2010
  96. Math

    Martin wants to make a scatter plot comparing the temperature outside with the number of people at the city swimming pool. Which of the following trends would most likely represent the data? A/There is no relationship between the temperature and the number

    asked by Sidney on June 26, 2013
  97. math

    find the sum or difference. 1. 5/6 + 4/9 1. 1/2 2. 9/18 3. 1 5/18 4. 1 1/2 I think it is B 2. 15 5/12 - 11 1/8 1. 4 7/24 2. 4 7/12 3. -4 1/3 4. -4 7/24 I think it is A 3. 5/8 - 3/10 1. 13/40 2. 1/20 3. 1/4 4. 1/5 I think it is C 4. 15/16 - 3/4 1. 1 2. 3/4

    asked by alley on October 10, 2017
  98. math

    show that the sum of four consecutive whole numbers is divisible by 2

    asked by kendra on November 29, 2011
  99. algebra

    How do I find out the sum of the first 38 terms of the sequence using 4,8,2,6,2,4,8,2,6,2... I am confused.

    asked by Vang on June 21, 2014
  100. Algebra

    Find three consecutive numbers whose sum is 930.

    asked by Seymour on January 28, 2016