1. Advanced Algebra

    Express the infinite series below using sigma notation and then find the sum. 64 + 40 + 25 + 15.625... Any explanation would be excellent. Thank you so much.

    asked by Trisha on April 30, 2012
  2. Geometry

    Please help me. What is the radius of a circle whose area is equal to sum of the ares of the circles with radii which are 14cm and 18cm?

    asked by Tyche on October 2, 2016
  3. Computer Applications

    Develop An Algorithm And Draw the Flowcharts To Find the Sum of Odd Numbers Between 100 And 200

    asked by Anonymous on August 27, 2016
  4. math

    Explain how to find the sum positive eight plus negative ten using game chips, then give the answer.

    asked by chachis on August 15, 2011
  5. math

    x,y,z are positive real numbers such that x+y+z=9 and xy+9xz+25yz=9xyz. Find the sum of all possible values of xyz.

    asked by Anonymous on April 29, 2013
  6. probability

    a student rolls three standard six-sided dice. what is the probability that the sum of the numbers that come up will be 18? is the answer 1/216

    asked by luckybee on June 29, 2012
  7. Geometric progression

    If the continued product of three numbes in g.p. is 216 and the sum of their products in pair is 156. find the numbers.

    asked by Vijay on October 18, 2016
  8. TO: MS SUE MATH 9

    The cube of the sum of 5 an 2 is decreased by the square of the product of 6 and 4. Write an expression that models this statement. Then , solve. THANX

    asked by Harry on December 13, 2012
  9. math- Algebra 2

    I have absolutely no idea how to do this please help! Find the sum: it has the sigma sign with 12 at the top, (10k-8)(6k+7) in the middle and k=1 at the bottom

    asked by Anonymous on November 1, 2009
  10. algebra

    Find the sum of the interior angles of a nonagon. (1 point) A. 140° B. 1,620° C. 1,260° D. 1,450 °

    asked by Me.(; on February 21, 2016
  11. Math

    What is the smallest integer that can possibly be the sum of an infinite geometric series whose first term is 9? Please explain in steps.

    asked by Jenny on January 8, 2015
  12. Math

    What is the smallest integer that can possibly be the sum of an infinite geometric series whose first term is 9? Please explain in steps.

    asked by Jenny on January 8, 2015
  13. Math 9 pleese help me thanx

    The cube of the sum of 5 an 2 is decreased by the square of the product of 6 and 4. Write an expression that models this statement. Then , solve.

    asked by Harry on December 13, 2012
  14. maths-linear equation

    Draw the graph of the linear equation whose solutions are represented by the points having the sum of the coordinates as 10 units.

    asked by anoynomous on March 11, 2013
  15. statistics

    The following is a list of 10 measurements: after adding and sub all 10 numbers I came up with a -29. Now it wants the sum 10/i,i than xi over 32. Do I x -29 and the 32 or do I divide. This is were I get very confused. I am sorry to ask again but I never

    asked by mary ann on January 21, 2015
  16. math

    Explain how to find the sum positive eight plus negative ten using game chips, then give the answer.

    asked by drea on August 15, 2011
  17. Chemistry Help.......

    Which element results if 2protons and 2neutrons with the atomic number 88 and mass number 226? Show workings Help please Since this is not my area of expertise, I searched Google under the key words "atomic number 88" to get these possible sources:

    asked by Fraser on March 5, 2007
  18. grade 6 math

    I have a input and output machine . The input number is 5 and the output number 4. the second input number is 10 and the output is 5. I am having a hard time finding the operation. Can some please help thanks

    asked by ashley on September 8, 2010
  19. 6th grade

    A Number rounded to the nearest tenth is 6.1. The same number rounded to the nearest hundredth is 6.08 and rounded to the nearest thousandth is 6.083. What is the original number?

    asked by Liliana on November 22, 2010
  20. statistics

    in throwing two dice find the probability ofcoming even number on both probability of coming odd number on dice probability of different number on both dice

    asked by shumaila.imtiaz on April 18, 2014
  21. computer

    The following RAM chips are specified by the number of words times the number of bits per word. For each, specify: a. The number of address lines needed for each memory chip b. The number of data lines needed for each memory chip c. The number of bytes

    asked by bode on March 26, 2011
  22. 6th grade math quiz

    1. Which of the following sample spaces correctly lists all the possible outcomes for flipping a coin and spinning a four-colored spinner (red, blue, green, and yellow)? A. H-red, H-blue, H-green, H-yellow, T-yellow, T-green, T-blue, T-red B. H-red, T-red,

    asked by Lily Longoria on May 13, 2016
  23. Math

    Here is the math problem. 150 is 75% of what number? I know the rate is 75 percent and the base is 150. I am looking for the amount. My questions is how to find the answer? Do I divide? Okay maybe I am missing a huge section as to finding the answer to

    asked by marinda on June 28, 2007
  24. Business

    Help find information on this The collapse of Enron, Worldcom, and other firms has raised a number of questions concerning the ethical standards of outside auditors. As a result, a number of new rules and laws were adopted i need to describe these changes

    asked by Bryan on April 10, 2009
  25. math

    Chip and Arlene have 60 shares of stock between the two of them. If you double the number arlene has and halve the number chip has, then they ahve the same number of shares. How many shares does charlene have?

    asked by Tria on December 11, 2015
  26. Math Challenge Check

    I am playing a dice game with my friend Kyle. Each of us roles a standard six-side die obtaining a number at random from 1 to 6. What is the probability that my number is greater than Kyle’s number? Answer below was posted last night. Is the answer

    asked by Please Help on November 1, 2011
  27. Chem

    so I have a set of fill in the blanks for symbol, atomic number, mass number, protons, neutrons electrons and charge. Protons: 6 Neutrons: 8 Electrons: 2 I said the atomic number was 6, the mass number was 12, and the charge was +4. The only thing I was

    asked by Em on May 28, 2009
  28. MATH(HELP)

    The ratio of guppies to angelfish in a shop was 2:3. The number of angelfish was 2/3 the number of gold fish. The shopkeeper decided to replace 1/4 of the guppies with some angelfish. The number of angelfish in the end. How many guppies were in the shop in

    asked by Sharon on August 7, 2014
  29. math

    Farmer john has hens, geese, ducks, and two goats the number of hens equals the number if geese and ducks combined . There are 5 fewer geese than ducks. If the total number of animals is 40 how many are ducks

    asked by angel on September 25, 2014
  30. math

    Marnie collects red, blue and purple buttons. At the beginning of the year she has 360 buttons in a box. The ratio of red buttons to blue buttons is 4:3 and there are twice as many red buttons as purple buttons. a.What is the ratio of blue buttons to

    asked by Dell on December 1, 2011
  31. NEED HELP drawing a visual for this question

    Marnie collects red, blue and purple buttons. At the beginning of the year she has 360 buttons in a box. The ratio of red buttons to blue buttons is 4:3 and there are twice as many red buttons as purple buttons. a.What is the ratio of blue buttons to

    asked by Dell on December 6, 2011
  32. Math - Data Management

    It is a grade 12 course, and our current unit is Combitionations. There is on questions where there is a 4 x 4 cubic diagram, like the 1x1 squares on graphing paper but 4x4. The question is to explain how the formula 5C2 x 5C2 gives the answer to how many

    asked by James on October 1, 2006
  33. Economic

    The Admissions Director (AD) wants to determine the optimum number of students for each ECO561 class. You are provided with the following data: Tuition is $1250 per student. Instructor Pay $2500 Other incidental (variable) costs - $1000.00 Variable cost

    asked by Rose on September 23, 2014
  34. Math

    Needing help with the formula to be able to prove these answers to be correct. What are the steps ? Moesha's is ( 3G + 1 ) years old and Shanti is twice Moesha's age. A ) Find the sum of the ages of Moesha's and Shanti in2 years time. Answer The sum of

    asked by Dee on December 6, 2017
  35. Physics

    There is a figure with a +2.0 UC charge on the left and a -2.0 uC charge on the right. P is in the center between the two charges. They are 5.0 cm apart. 1) Find the electric field 5.0 cm to the left of P. 2) Find the electric filed 5.0 cm directly above

    asked by Sammy on August 19, 2009
  36. math

    Which graph shows the solution to the inequality? x - 4 ≥ -1 graph A is a number line with -10 through 3 graph b is a number line with 3 through 10 with a circle on 3 graph c is a number line with 5 through 10 graph d is a number line with 3 through 10

    asked by Anonymous on January 18, 2019
  37. Algebra

    Which statement describes how to find the nth term in the sequence? 15, 32, 49, 66, 83, ... A. subtract 2 from 17 times the term number B. add 2 times the term number and 15 C. add 2 and 17 times the term number D. subtract 17 times the term number from 15

    asked by Elysa on March 21, 2012
  38. MATH

    Nicole makes a keychain by using yellow, red and green beads. The number of red beads used is more than twice the number of yellow beads by 10, while the number of green beads used is more than one-third the number of yellow beads by 7. It is known that

    asked by FRANCIS on November 7, 2015
  39. Torque, Physics

    A ladder of length 2L and mass M is positioned on level ground leaning against a wall such that the angle between the ladder and the horizontal is α. The coefficient of static friction between the ladder and the wall and between the ladder and the ground

    asked by Anon on December 5, 2017
  40. math

    Consider the given statements. 1. Every prime number is odd. 2. There are 8 prime numbers between 10 and 40. 3. There are 11 composite numbers between 0 and 20. 4. The number 4 is the smallest even composite number. Which two given statements are

    asked by angela on July 15, 2014
  41. US History

    41. A neutron atom of potassium has an atomic number of 19 and an atomic mass number of 39. Find its number of protons, neutrons, and electrons. This is what I got- Protons: 19 Neutrons: 20 Electrons: ? Thanks -MC

    asked by mysterychicken on October 22, 2010
  42. Mathematics

    the ratio of the number of adults to children at a conce6is 5:6. the ratio of number of boys to number of girls is 2:5. therenare 36 more girls than boys at the concert. how many bpy are at the concert

    asked by Labor on April 25, 2016
  43. Math

    Write an expression for each quantity. 1. the value in cents of 5 quarters 2. the value of cents of q quarters 3. the number of months in 7 years 4. the number of gallons in 21 quarts 5. the number of gallons in q quarts Thank you.

    asked by Cindy on June 13, 2011
  44. Chemistry

    41. A neutron atom of potassium has an atomic number of 19 and an atomic mass number of 39. Find its number of protons, neutrons, and electrons. This is what I got- Protons: 19 Neutrons: 20 Electrons: ? Thanks -MC

    asked by mysterychicken on October 22, 2010
  45. Math

    Which of the sentences below could represent 4 ÷ p = 2? A. Four divided by two is equal to a number. B. Four divided by a number is equal to two. C. A number divided by four is equal to two. D. Four times a number is equal to two.

    asked by Angelina on February 25, 2015
  46. math

    i think this one is right..but im not sure..Argyle has 8 T-shirts and 5 pairs of shorts that he wears with either sandals or sneakers. If all the colors and patterns coordinate, how many different outfits can he make?? i think its 80...but im not sure one

    asked by sheila on October 18, 2006
  47. math

    You roll a number cube numbered from 1 to 6. what is the probability you roll a number divisible by 4? Answer: I think 2/6 or 1/3 A number from 16 to 23 is drawn at random. what is the probability you draw a number greater than 18? Answer 5/7 A jar

    asked by Anonymous on March 13, 2014
  48. Algebra 1

    Which statement about real numbers is true? Across the heading says: real numbers. The first big circle says: rational numbers The second biggest circle inside rational numbers says: integers The third circle within the rational numbers says: whole

    asked by Cassie on January 23, 2014
  49. Calculus Help!

    At a price of $7.5 per ticket, a musical theater group can fill every seat in their 1500 seat performance hall. For every additional dollar charged for admission, the number of tickets sold drops by 95. a) What ticket price maximizes revenue? Round your

    asked by Anonymous on July 16, 2014
  50. math

    OMG I CAN NOT get this !!!! Purchase price of article = $495 Down payment = $50 Number of payments = 36 True annual interest rate = 18% Monthly payment amount = $ The formula is I= 2YC ________ M(N+1) y = the number of payments made in a year. m = the

    asked by sarah on July 10, 2013
  51. statics equilibrium

    hey every1, any1 know how to do statics questions? i have a few virtual work questions i have to get right by 2moro or i'll fail my course! please help... There are several engineers here who can assist. At What point from the left end should a uniform

    asked by laura on October 19, 2006
  52. Discrete Mathematics

    Mathematical sequences can be used to model real life applications. Suppose you want to construct a movie theater in your town. The number of seats in each row can be modeled by the formula C_n = 16 + 4n, when n refers to the nth row, and you need 50 rows

    asked by sara on September 4, 2012
  53. Math

    number of students in a class = 36 number playing cricket = 16 number playing football = 25 number playing both cricket and football = x write an equation for x how many students play both football and cricket

    asked by Rick on April 19, 2016
  54. Math

    Which numbers are perfect squares? A) 64 b)900 c)120 d)1000 e)100 F) 10 000 How do u know each number is a perfect square? A) 1225= 35x35 B) 484= 2 x 2 x 11 x 11 C) 2025 = 45(square) the area of this square is 289 square unit. How so u that it's perfect

    asked by Roxane smith on September 11, 2011
  55. statistics

    8. A survey was conducted to learn about the shopping preference of consumers during the holiday season. Out of 2000 respondents 22% said they would prefer to shop online because of the free shipping offered; 45% said that they would like to shop in malls

    asked by meri on June 30, 2015
  56. Algebra 1

    A group of 23 students participated in a math competition. Their scores are below: Score (points) 20–29 30–39 40–49 50–59 60–69 Number of Students 4 7 5 4 3 Would a dot plot or a histogram best represent the data presented here? Why? Histogram,

    asked by Carly (Help pls) on January 22, 2016
  57. Algebra 1

    I am having trouble with a few questions....Wondering if you could help...My answers have the *** by them..... 1. A lab is growing bacteria in a culture dish. The amount of bacteria in the dish doubles every 3 hours. Initially, there are 500 bacteria in

    asked by Brittany on September 29, 2016
  58. algebra

    A biologist took a count of the number of migrating waterfowl at a particular lake, and recounted the lakes population of waterfowl on each of the next six weeks. Find the function that models the data as a function of x, the number of weekx. Use the model

    asked by LEE on October 25, 2012
  59. Math

    The total number of DVD videos produced and shipped in 1998 was .5 million. In 2004,the total number of units reached 29.01 million. Assuming the exponential model applies: a)Find the value of k and write the function b) Estimate the number of DVD videos

    asked by Anonymous on January 26, 2011
  60. math

    A single die is rolled. (a) What is the probability that the number on top is a 3. (Give your answer correct to two decimal places.) (b) What is the probability that the number on top is an odd number. (Give your answer correct to two decimal places.) (c)

    asked by Nora 2 on May 30, 2013
  61. Math

    A single die is rolled. (a) What is the probability that the number on top is a 3. (Give your answer correct to two decimal places.) (b) What is the probability that the number on top is an odd number. (Give your answer correct to two decimal places.) (c)

    asked by DeeDee on May 28, 2013
  62. Math

    A single die is rolled. (a) What is the probability that the number on top is a 3. (Give your answer correct to two decimal places.) (b) What is the probability that the number on top is an odd number. (Give your answer correct to two decimal places.) (c)

    asked by DeeDee on May 29, 2013
  63. Economics HELP PLEASE!!!!

    Can someone please help me with a hint to solve this problem?? I'm struggling really hard with this. "Consider an oligopolistic market with two firms. Each of them produces using a cost function given by c(q)=q^2. The aggregate demand in the market is

    asked by Anonymous on March 21, 2014
  64. maths

    people of sundergram planted a total of 102 trees in the village garden some of the trees were fruit tress.the number of non fruit trees were two more than three times the number of the fruit trees. what was the number of fruit tree planted?

    asked by shehzad on October 15, 2015
  65. Math

    Need equation form for this number problem. Theater tickets are $8 for general admission and $5 for students. During one evening 240 tickets were sold, and the receipts were $1680. How many of each type of ticket was sold? use the equations and solve g

    asked by Lynn on August 6, 2007
  66. Physics

    So I have worked out the 'allowed' configurations for four particles which can occupy 5 different energy levels (1, 3, 5, 7, 9) and now I need to work out the average number of particles in a particular energy level (i.e 3). 1) 9,5,1,1 2) 9,3,3,1 3)

    asked by Anon on May 6, 2018
  67. Math

    Ms.abbot went on a road trip. The trip was 792 miles and the average price of gasoline was $1.30 per gallon. What information is needed to to find the amount spent on gasoline for the trip? A. Number of hours the trip took B. Number of miles per hour the

    asked by Mathisthebest on April 13, 2011
  68. Physics

    A vehicle is travelling at 25.0 m/s. It brakes provide an acceleration of -3.75 m/s^2[forward]. What is the driver's maximum reaction time if she is to avoid hitting an obstacle 95.0 m away? the answer is a number less than 0.5 second. can you tell me the

    asked by Dee on October 31, 2011
  69. Trigonometry

    There are four complex fourth roots to the number 4−4√3i. These can be expressed in polar form as z1=r1(cosθ1+isinθ1) z2=r2(cosθ2+isinθ2) z3=r3(cosθ3+isinθ3) z4=r4(cosθ4+isinθ4), where ri is a real number and 0∘≤θi

    asked by Shin on May 27, 2013
  70. Biology

    If the line for 60 captured is extended downward to zero percent error, what fraction of the total population would this represent? (Compare the actual number in the can to the extrapolated number on your graph.) What more information do I need to provide

    asked by Robin on July 15, 2012
  71. VB

    Programming in Visual basic 2008 exercise 11.5 Create a project that store personal information for a little electronic “Black Book” the fields should include name, phone number, pager number, cell phone number, voice mail number and email address.

    asked by Phanel on April 28, 2011
  72. furth math

    in a school,180 students play hockey or football.the number that play football is 5 more than twice the number that play hockey.if 15 students play both games and every student in the school plays at least one game,find:1) the number of students that play

    asked by Anonymous on September 4, 2017
  73. math

    describe the situation from the veiwpoint of each person. during a year a person saves 12oo dollars and another person spends 500 dollar. which real number corresponds to saves 1200 dollars. type a negative number with a negative sign, or type a positive

    asked by Cathy on September 27, 2009
  74. Please Help

    The subject is chemistry, okay so like The questions states are many atoms are there is 7.62g of Si? But all I am asking is if you can give me the equation to set up th eporblem then ask me to answer it, then I can give you my answer so your can see if it

    asked by Cupcake on October 17, 2006
  75. Math

    A ship is traveling due north. Every 30 mins,the captain corrects his course by a certain number of degrees.Here are the corrections made during the first four hours of the voyage: 5,-7,3,2,-6,8,-4,-6 ps theres degrees in the numbers Note:in marine

    asked by Natalie on January 14, 2013
  76. math

    In Lewis Carroll's Through The looking Glass, Tweedledum says, "the sum of your weight and twice mine is 361 pounds". Tweedledee replies, "The sum of your weight and twice mine is 362 pounds". Find both weights. ONLY AN ALGEBRAIC SOLUTION WILL BE ACCEPTED

    asked by B8 on February 8, 2014
  77. statistics

    1. A company decides to add a new program that prepares randomly selected sales personnel to increase their number of sales per month. The mean number of sales per month for the overall population of sales people at this national company is 25 with a

    asked by Anonymous on March 10, 2014
  78. math

    sara inspected the horses and hens in her farm one morning. Afterwards, we could not remember how many animals of each kind she had, but knew the total number of these animals was 27, her own age in 1997. She also knew that the total number of legs was 70,

    asked by kelley on September 5, 2017
  79. math

    sarah works in the clubhouse golf course. She receives a case containing 125 golf balls. the number of boxes in the case is equal to the number of packs in each box. and the number of packs in each box is equal to the number of golf balls in each pack. how

    asked by Anonymous on December 5, 2014
  80. Chemistry

    What is the number of double or triple bonds in the formula C3H8? What is the number of lone pairs Around each atom? And what is the number of single covalent bonds? I also need help with the formula C3H6O with the same questions! For C3H8 I got 10 single

    asked by Meena on October 2, 2014
  81. Algebra 2

    would some one please check these for me 1. divide x^2-36y^2 over 5x^2+30y divide (x^2-6xy) A: x+6y over (5x)(x^2+6y) 2. Add. Express your answer in simplest form. 2x 0ver x^2+15x+54 + 4over x+6 A: 6 over x+9 3. solve: (9 over x-5) -1= 8 over x+5 A: -10

    asked by Ray on June 2, 2007
  82. Algebra

    13. Which relationship would most likely have a positive correlation? a. The amount of memory in a computer, and the number of keys on the keyboard. b. The rate at which a train travels, and the time it takes for it to reach its destination. c. The number

    asked by mysterychicken on May 14, 2010
  83. linear equations in one variable

    I have a total of ₹300 in coins of denomination ₹1,₹2 and ₹5.The number of ₹2 coins is 3 times the number of ₹5 coins.The total number of coins is 160.How many coins of each denominations are with me?

    asked by sunil on April 7, 2016
  84. Math

    In a cupboard there are pencils, rulers and books. The number of pencils is 15 more than that of rulers. The number of books is three time that of rulers. If the number of pencils is p, which one the total number of items in the cupboard?

    asked by K on January 15, 2018
  85. series

    find the nth term awmd partail sum of the harmonic series below 1/3+1/8+1/15+1/12+..........show working plz

    asked by help on March 19, 2016
  86. Statistics

    If the interest rate is 3% and a total of $4,370.91 will be paid to you at the end of 3 yrars, what is the present value of that sum? my answer: $4,ooo.oo

    asked by India on September 13, 2012
  87. calculus

    Calculate the left Riemann sum for the given function over the given interval, using the given value of n. (When rounding, round answers to four decimal places.) f(x) = e^−x over [−6, 6], n = 6

    asked by louis on July 12, 2011
  88. Emerson

    I'm helping my son he is in 4th grade . His hw it's hard and this is the problem : find two mixed numbers. So that the sum is 7 2/8 and the difference 2 4/8.

    asked by Claudia on March 3, 2015
  89. Math 1

    Without finding the exact answer, select which of the following numbers is the best estimate of each sum or difference of 2/3, 0, or 2/3. of the problem 1/9 + 2/5 - 1/3 - 3/4. How would you solve this as an estimation?

    asked by Anonymous on October 9, 2009
  90. pre-calculus

    Rewrite the expression so that it involves the sum or difference of only constants and sines and cosine to the 1st power (sinx)^4

    asked by lina on April 3, 2012
  91. Algebra

    When the product (3x+2y+1)(x+4y+5) is expanded, what is the sum of the coefficients of the terms which contain a nonzero power of y? I got 3x^2+14xy+16x+8y^2+14y+5 would the answer be 36?

    asked by Trish Goal on November 13, 2014
  92. Chemistry

    Calaculate the initial heat energy before mixing as the sum of (mcpt) for the hot and cold water,using Cp=4.184J/g-c

    asked by Rajii on April 1, 2012
  93. java programming

    could someone help me create a source code that requires you to enter 2 numbers then gets the sum, difference, product and quotient of them after entering

    asked by mark on July 7, 2009
  94. Statistics

    a fair dice is tossed seven times. suppose that on tosses 2 through 7, the value seen is different from the value seen on the preceding toss. Let S denote the sum of the 7 value seen, the probability that s to be even is

    asked by Appollonius on August 19, 2011
  95. math - algebra

    Please help with this question: Rewrite the middle term as the sum of two terms and then factor completely. 10x2 + 19x + 6 it is for a test...thanks

    asked by Rebeca on November 11, 2007
  96. Economics

    The lump sum payment survivors receive from social security to help pay funeral and burial expenses is

    asked by Jacklene on September 17, 2012
  97. Urgent math

    Please help me solve this problem?!?! Find the first six terms and the sixth partial sum of the sequence whose nth term is an = 5n2 − n. a1 = a2 = a3 = a4 = a5 = a6 = S6 =

    asked by Briane Mendez on August 12, 2015
  98. algebra

    a group of 10 six and twelve volt batteries are wired in a series. the sum of their voltage is 84 volts. how many of each type of the battery are used

    asked by taylor on October 8, 2009
  99. math

    place decimal points in these numbers so that their sum is 519.654. 477,329,624,913

    asked by bryce on August 22, 2011
  100. calculus

    Find the exact value of the given expression using a sum or difference formula. sin 345° Can you help with this? I got 1/4 (squareroot 2 - square root 6)

    asked by megan on July 11, 2016