1. Math

    What is the sum of the first 60 odd numbers?
  2. 1st grade

    how many different ways can you get to the sum of 4
  3. Math

    The sum of 24 and Vanessa's age is 40
  4. math

    The sum of two consecutive numbers is 37. What are they
  5. mathematics

    Find the sum to n terms of 1/(1.2.3) + 3/(2.3.4) + 5/(3.4.5) + 7/(4.5.6) +....
  6. math

    An AP is given k,2k/3,k/3,0....calculate the sum of the first 30 terms
  7. Algebra

    Are there two integers with a product of -12 and a sum of -3?
  8. mathematics

    Estimate each sum or difference of 54.23-2.39
  9. 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 of the orginal number ...
  10. 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 of the orginal number ...
  11. 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 whom the medicine ...
  12. algebra 1

    4. Given the irrational number .14147…. choose an inequality which approximates to the 4th decimal place. a) .14 < x <.15 b) .141 < x < .142 c) .1413 < x < .1414 d) .1414 < x <.1415 B? 6. Choose an inequality to match this description: The height E of...
  13. Algebra

    I am thinking of two numbers. The first number added to the second number is 5. Twice the first number added to twice the second number is 10. What are the numbers. ????? 1&4
  14. Math

    Sara and Jenny can both do flips in the air. The ratio of the number of flips Sara can do to the number of flips Jenny can do is 3:8. Jenny can do 120 more flips than Sara. If Sara increases the number of her flips by 3 and Jenny decreases the number of her flips by 12, what ...
  15. college

    Suppose that the number of cars, C, on 1st Avenue in a city over a period of time t, in months, is graphed on a rectangular coordinate system where time is on the horizontal axis. Further suppose that the number of cars driven on 1st Avenue can be modeled by an exponential ...
  16. 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 the boat. What is ...
  17. Math

    Eduardo has a red 6-sided number cube and a blue 6-sided number cube. The faces of the cubes are numbered 1 through 6. Eduardo rolls both cubes at the same time. The random variable X is the number on the red cube minus the number on the blue cube. What is P(−2≤X&#...
  18. Math

    An Amount of $ 14400 is made up of $100, 50, 20 and 10 notes. The number of $10 notes are 3 times the number of 20 notes. The number of $20 note are 5 times the number of $50 notes. The number of $50 note are 5 times the number of $100 notes. How many of $100 note are there?
  19. Math

    An Amount of $ 14400 is made up of $100, 50, 20 and 10 notes. The number of $10 notes are 3 times the number of 20 notes. The number of $20 note are 5 times the number of $50 notes. The number of $50 note are 5 times the number of $100 notes. How many of $100 note are there?
  20. Calculus

    A popular search engine is targeting European countries where the number of online households is expected to grow at a steady rate. Data was taken over time, and it was found that the number of online houses (in millions) projected can be modeled by the following function: N(t...
  21. 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 measure of each exterior ...
  22. 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? Which numbers along the ...
  23. 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 line? Which numbers ...
  24. 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 be thinking of. Use x...
  25. 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 figures.
  26. 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 number cube?
  27. 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 be thinking of. Use x...
  28. 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
  29. 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 represents, in terms ...
  30. APA FORMATTING

    I think it's C. Am I right? When using APA, which of the following describes the method in which a work without page numbers should be presented in in-text citations? A. No mention of the page number is required in APA B. If no page number is present, it is not a credible ...
  31. math

    in a total of 435 bags,rasons,almonds and peanunts were found in all the bags. if the number of rasons is 10 times the number of peanuts and the number of rasons and almonds is 20 times the number of almonds. how many bags contain only one item
  32. 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 d. multiply each ...
  33. 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 d. multiply each ...
  34. Computer

    devise a number system based on base 11. a)draw the number line b)show examples of addition and subtraction c)develop a representation of negative numbers based on elevens complement Hi Stephanie: I guess first I want to make sure you understand what a base 11 number system ...
  35. 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 the atomic number is ...
  36. 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 be thinking of. Use ...
  37. 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 first, so n+1 is next, etc...
  38. 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; subtract 7; add 8; ...
  39. math

    Cells ina certain plant can triple in number every 15 minutes.How many times greater is the number of plant cells after an hour and a half then the number of cells the plant had origanally?
  40. Algebra 1

    Can someone help me I really don't get this one The table shows the number of trolley buses in operation in the United States during certain years. Describe the rates of change in the number of buses during the time period. (Table) Year 1980 1985 1990 1995 2000 Number 823 676 ...
  41. probability!!!!!!!!!!

    41 different balls are drawn from a bag containing balls labelled 1,2,…,300. The probability that the number of balls drawn that are labelled with an odd number is larger than the number of balls drawn that are labelled with an even number can be expressed as a/b where a and...
  42. 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 a sub-class of ...
  43. 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. The spring constant ...
  44. 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 to make sure there ...
  45. Probability

    A loaded die has the property that the probability of throwing an odd number is three time the probability of throwing an even number. If the even number are equally likely to appear, find the probability of rolling either a 3 or a 6.
  46. Math

    In a particular orchard, there are two times the number of oranges as there are apples and six times the number of oranges as there are pears. The expression j+k+6k represents the total number of fruits at the orchard.
  47. chemistry

    In any chemical reaction, the quantities that are preserved are what? A. the number of moles and the volumes B. the number of molecules and the volumes C. mass and number of atoms D. mass and moles
  48. MATH

    1. WHICH SYMBOL WILL MAKE THE NUMBER SENTENCE -|16| ? 16 TRUE? A. = **** B. < C. > 2.WHICH SET OF NUMBER IS FROM LEAST TO GREATEST A. 7,|-4|,-7,0,-|3|,3 B. -|3|,-7,0,3,7,|-4| C. -7,-|3|,0,3,|-4|,7 D. 7,|-4|,3,0,-|3|,-7 3. WHICH SYMBOL WILL MAKE |-6| ? -6 TRUE? A. >...
  49. math

    Change the number sixteen to an improper fraction Change the number twenty-eight hundredths written as an improper fraction, decimal, and mixed number.
  50. MATH

    1. WHICH SYMBOL WILL MAKE THE NUMBER SENTENCE -|16| ? 16 TRUE? A. = **** B. < C. > 2.WHICH SET OF NUMBER IS FROM LEAST TO GREATEST A. 7,|-4|,-7,0,-|3|,3 B. -|3|,-7,0,3,7,|-4| C. -7,-|3|,0,3,|-4|,7 D. 7,|-4|,3,0,-|3|,-7 3. WHICH SYMBOL WILL MAKE |-6| ? -6 TRUE? A. >...
  51. math

    3/7 of the muffins in the bakery were carrot muffins. The number of blueberry muffins was twice the number of multi grain muffins. The number of multi-grain muffings was 1/3 the number of banana muffins. If there were 108 multi0grain muffins, how many carrot muffins were there?
  52. 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 interval between the ...
  53. Statistics

    Please help me figure them out. 1. In the 105th Congress, the Senate consist of 55 Republicans and 45 Democrats. If a committee is formed by randomly selecting four different senators, what is the probability that they're all Republicans? 2. It's common for public opion polls ...
  54. 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?
  55. 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 follows: 12; 4; 15; 3; 11...
  56. Word Problem /Math

    Angel's car gets 32 miles per gallon and Mo's car gets 22 miles per gallon. When traveling from Morgan Run to Clinton, they both used a whole number of gallons of gas. What is the closest that Morgan Run and Clinton could be? How many gallons did Angel's car use? How many ...
  57. 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: 27 , 363 , 236 , 107...
  58. 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 of people at the ...
  59. 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, but I did it by ...
  60. 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 that gives the total ...
  61. Math

    In a class the number of students who study French or Geography is 40, 20 study both subjects and the number that study French is 10 more than the number studying geography. Illustrate on a Venn diagram hme information above. How many students study French? How many students ...
  62. 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 number is the number...
  63. Algebra

    Rewrite the middle term as the sum of two terms and then factor by grouping. x2 – 2x – 63 Factor. 9x(x – 7y) – 6(x – 7y) Factor completely. x^2+8x+15 Rewrite the middle term as the sum of two terms and then factor completely.
  64. 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 expressed in a finite number...
  65. Math

    Which statement is true? A. Every rational number is a square root. B. Every irrational number is a fraction. C. Every rational number can be written as a fraction. D. Every square root can be written as a whole number I go with C
  66. 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 and 28.0 kg of Na. ...
  67. 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 number. For example...
  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 I have in my wallet? ...
  69. 7th grade math - Scientific Notation basics

    1. The area of Greenland is 840,000 square miles. What is this number in scientific notation? 2. What is this number in standard form? 5.75 x 10^9 3. In a recent year the world production of wheat was about 5.2 x 10^8 metric tons. What is this number in standard notation?
  70. 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 display the total number ...
  71. 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 of the orginal number ...
  72. 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 be an increase or a ...
  73. math

    the number of blocks has 9 in the ones place.The number in the hundreds place is onemore than the number in the tens place.Those two numbers equal 11.How many blocks are there?
  74. Math

    The number of blocks has line in the ones place the number in the hundreds place is one more than the number in the tens place those two numbers equal 11 how many blocks are there
  75. math

    What is the ratio of the green bens to the total number of beans where the number of green beans is 4times more than the number of red beans?
  76. Math

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

    Im begging! please someone teach me how to answer this! when 3 times a number is added to the square of a number the result is ten find the number. I don't know where to start but please teach me or tell me the process to answer this,even just a process. I can answer this if ...
  78. Math

    I need help with making a formula..? This is what I put.. "The 100th Triangular Number is 5,050. I found this by adding 100 to the value of the 99th Triangular Number. The 99th Triangular Number is 4,950. The formula I used to find it is..." Help?
  79. Math

    James has an assigned seat for his flight to Denver. The seats on the plane are numbered 1-49. James's seat number is an odd number greater than 10 that is factor of 100. what is his seat number for the flight?
  80. chemistry

    Given the following Unknown atoms with their respective atomic numbers, X; Atomic number 19, Y; Atomic number 15, a. Deduce the identities of the elements X and Y. b. What are the mass numbers of the two elements X and Y? c. Calculate the number of Neutrons in the respective ...
  81. 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 simulation. 1) use digits 1-...
  82. 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 the circle ...
  83. ALGEBRA

    After paying mom, you find that you have 13 bills. The number of ten dollar bills you have is twice the number of five dollar bills. The number of one dollar bills is two less than six times as many ten dollar bills. Find the number of each bill that you have. Write an ...
  84. Math

    After paying mom, you find that you have 13 bills. The number of ten dollar bills you have is twice the number of five dollar bills. The number of one dollar bills is two less than six times as many ten dollar bills. Find the number of each bill that you have. Write an ...
  85. Math

    The average of five number is 56. Four of the numbers are the same. The average of one of the four number and the fifth number is 80. What is the fifth number. 56*5=280 80*2=160 280-160=120 5/120=24 Is 24 correct?
  86. 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 7 3 9 6 5 4 10 What ...
  87. math

    A pitcher knows how to throw five different pitches. He threw four pitches before the last batter was called out. a) assuming he threw each pitch at LEAST once, determine the number of possible arrangements of his pitches. b) assuming that he can use any pitch an unlimited ...
  88. programing

    1. Elements – sequence-series outputting Write a program that prints the following elements: 1, 3, 5, 7, 9, 11, 13, 15, 17, 19, (hereto referred to as elements) etc., up till a user-entered value. The program should not print more than 10 numbers per line. The last line ...
  89. math

    I am a 3 digits number less than 200. the tenths place is 2x more than the ones place. the number in the ones place is 2. what number am i?
  90. Algebra

    What is the expression for the quotient of 6 and the sum of 5 and y? My answer is 6 ---- 5 + y
  91. algebra

    What is the sum of the first 19 terms of the series: 63 + 55 + 47 + 39 + 31 + …? I think it is 769.5 is it right?
  92. MATH

    Which is an example of the opposite of a sum property? (Points : 4) a –8 + (–13) = –13 + (–8) b 11 + (–14 + 5) = (11 + (–14)) + 5 c 16 + (–16) = 0 d –(22 + 1) = –22 + (–1)
  93. Math

    If the difference of 135, and 98 is 37, what is the sum of the numbers?
  94. 4th grade

    what are two numbers that have the quotient of 2 and the sum of 14
  95. ap

    in an AP, if the 5th and 12th terms are 30 and 65 respectively. what is the sum of first 20terms
  96. Math

    What does it mean by, "The sum of three consecutive odd integers is 93."
  97. math

    a,b,c,d, and e are integers; M is their average; and S is their sum. What is the ratio of S to M?
  98. Maths

    The sum of two consecutive no is 39.find the numbers
  99. 6th grade

    i am a fraction between 1/8 and 1/4. the sum of my digits is 10
  100. Algebra

    Suppose f is a polynomial such that f(0)=47, f(1)=32,f(2)=-13, and f(3)=16. what is the sum of the coefficients of f?
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