1. physics

    In the sum Vector A plus Vector B equals vector C, vector A has a magnitude of 11.6 m and is angled 36.5° counterclockwise from the +x direction, and vector C has a magnitude of 14.0 m and is angled 17.1° counterclockwise from the -x direction. What are (a) the magnitude and...
  2. Chemistry

    write isotpoic symbols of the form X-A (for example, C-13) for each of the following isotopes. **Do I add the number of protons and neutrons together to get the answer? The symbol is easy to figure out.** a) the iodine isotope with 74 neutrons B) the phosphororus isotope with ...
  3. chemistry

    Quantum numbers arise naturally from the mathematics used to describe the possible states of an electron in an atom. The four quantum numbers, the principal quantum number (n), the angular momentum quantum number (ℓ), the magnetic quantum number (mℓ), and the spin quantum ...
  4. Word problem help plz

    The sum of the age of father and son is 99.if the age of the son is added to the inverted age of the father,the sum is 72.if the inverted age of the son is subtracted from the age of the father.the difference is 28...what are there age? plz help i do not no it at all show ...
  5. math

    Of the 50 state in the united state, 8 states have a population of one million people or fewer.Make a plan and write an addition equation to show that the sum of the state with more than one million people and the states whith one million people or fewer is equal to 50. Then ...
  6. please help

    i need help setting up 2 equations. The sum of the radius,r, times 2 and 3 equals 4 less than the radius,r. The sum of the radius, r, times 13 and 15 equals 16 less than twice the radius,r.
  7. math

    The sum of the reciprocals of two consecutive even integers is 11/60. Find the integers....... 1/n + 1/(n+2) = 11/60 what is the question? the question is, "What is the value of the integers? I will be happy to critique your work. We don't do it for students. Not a student, ...
  8. math foe managers

    f 5 times the first number plus 3 times the second number equals 47, and 10 times the first number minus 4 times the second number equals 54, what are the numbers?
  9. algebra

    There are 51 students in a certain class. The number of females is 5 less than 3 times the number of males. find the number of females and the number of males in the class.
  10. algebra

    if 5 times the first number plus 3 times the second number equals 47 and 10 times the first number minus 4 times the second number equals 54, what are the numbers? please explain the steps
  11. LABOUR ECON...TAX QUESTION

    k here is the question suppose a government imposed an employment tax. That is upon entering the labour force an, individual had to pay a lump sum tax. (if they don't work, they don't have to pay the tax). How ould this affect the individual's labour supply curve? Good ...
  12. math

    1)Find a1 in a geometric series for which Sn=300,r=-3,and n=4 A)15 B)15/2 C)-15 D)1/15 I chose A 2)Find the sum of the infinite geometric series. Sigma sign with infinity symbol above and n=1 below. To the right 20(-1/4)n-1 A)25 B)80/3 C16 D)does not exist I chose A 3)Find the...
  13. Math--linear systems

    A local hardware store sells three types of boxes; small, medium and large. The cost of the boxes are; small $10, medium $20 and large $30. In the previous week a total of 1200 boxes were sold resulting in proceeds of $20 000 for the week. The number of small boxes sold was ...
  14. Math

    Hi I am after some help starting this question. A local hardware store sells three types of boxes; small, medium and large. The cost of the boxes are; small $10, medium $20 and large $30. In the previous week a total of 1200 boxes were sold resulting in proceeds of $20 000 for...
  15. domain

    How do you find the domain of log(x^2-4)? and how about this one? e^(3x+4)? Please help me! Well kristie, you might recognize log(x^2-4) = log((x-2)(x+2)) and then use a property of logs to see it as a sum, i.e., log(ab)=log(a)+log(b). You are then expected to know that the ...
  16. gems

    The sum of present age of father nd son is 82 .when the father age was equal to the present age of son .the sum of their age is46.find their present age
  17. math

    Can someone help me with prime and composite numbers? Prime numbers are counting numbers that can be divided evenly bt only two numbers:1 and themselves. A prime number can also be described as a counting number with exactly two factors, 1 and itself. So, 1 because it has only...
  18. Math! Please check!

    Okay, so this one is going to be a bit difficult to answer as I cannot post my number line, so you may just have to visualize it, or draw it out on paper. If HI = GM at what coordinates could point M lie? Point H is at 8 on the number line and point I is at 14 on the number ...
  19. math(need 2nd opinion)

    1)Find a1 in a geometric series for which Sn=300,r=-3,and n=4 A)15 B)15/2 C)-15 D)1/15 I chose A 2)Find the sum of the infinite geometric series. Sigma sign with infinity symbol above and n=1 below. To the right 20(-1/4)n-1 A)25 B)80/3 C16 D)does not exist I chose A 3)Find the...
  20. Math

    Karen is applying for the nursing school at the University of Davis. Before applying, she received a breakdown of the tuition and fees from the university. Tuition: $611 per semester plus $250 per class Books: $82 per class Nursing School Fee: $19 per class Parking: $58 per ...
  21. math

    Deshawn has five base-ten blocks. She models a number that is less than 999. The number she models has a zero in tens place and a zero in the ones place. What number is she modeling?
  22. Algebra

    Let a be the value of the function when n is 0. The number of the first row of differences is b, the first number of the next row is c, and so on. The formula for the nth number of the series is: a + bn + cn(n-1)/2! + dn(n-l)(n-2)/3! and so on. Find the formula for each ...
  23. Math

    1. Where is 4.89 on the number line Between 1 and 2 Between 2 and 3 Between 3 and 4 Between 4 and 5 <--- 2. 7.07 __ 8.83 a. < <--- b. > c. = d >= 3. Where is 8.366 on the number line? Between 6 and 7 Between 7 and 8 Between 8 and 9 <--- Between 8 and 10 4. ...
  24. College Algebra

    Consider only the discriminant, b2 - 4ac, to determine whether one real-number solution, two different real-number solutions, or two different imaginary-number solutions. 2x2 = -2 -5 Thank you
  25. Math- urgent

    One more than 3 times a number is the same as 5 times the number, decreased by 15. Find the number. • Assign the variable • Write an equation • Solve equation
  26. Algebra

    Let a be the value of the function when n is 0. The number of the first row of differences is b, the first number of the next row is c, and so on. The formula for the nth number of the series is: a + bn + cn(n-1)/2! + dn(n-l)(n-2)/3! and so on. Find the formula for each ...
  27. math

    can someone give me proof that a negative number times a negative number is a positive number I've always been told this in like seventh grade that it is but havne't been given any proof
  28. math

    Mike's number is 2000 more than Jerry's which is 400 less than Barry's. Larry's number is 1500 more than Sam's, which is 443. Sam's number is 60 less than Barry's.
  29. Algebra

    Let a be the value of the function when n is 0. The number of the first row of differences is b, the first number of the next row is c, and so on. The formula for the nth number of the series is: a + bn + cn(n-1)/2! + dn(n-l)(n-2)/3! and so on. Find the formula for each ...
  30. math

    a perso increases the number of tosses of a fair coin the actual number of heads will get farther and farther away from the number of tosses divided by 2
  31. math

    Need to make a problem, using parentheses and use as many operations to write an expression equal to to th target number. You can only use each number once in an expression. Numbers 6,7,12,14,20 Target number = 41
  32. English

    1. You should wear a swimming cap in the swimming pool. 2. You should wear a swimming cap at the swimming pool. (Which preposition should we use? Are both OK?) 3. What is your number? - My number is 22. 4. May I have your number? - My number is 22. 5. What number are you? - I ...
  33. math

    the ratio to the number of mystery books to the number of science fiction books is 4:3 the ratio of the number of science fiction books to the number of biographies is 4:5 if there are 48 science fiction books, find the total number of books using bar model
  34. Algebraic inequalities

    There are three kinds of fruit in a basket:apples, oranges, and pears. The number of apples is 1 less than the number of oranges. The number of pears is 2 times the number of apples. There are 17 fruits in the basket. How many of each kind are there?
  35. algebra

    Suppose that Maria has 140 coins consisting of pennies, nickels, and dimes. The number of nickels she has is 9 less than twice the number of pennies; the number of dimes she has is 19 less than three times the number of pennies. How many coins of each kind does she have?
  36. Algebra

    A wallet contains $445 in $5, $10, and $20 bills. The number of $5 bills exceeds the number of $10 bills by 2, and the number of $20 bills is 3 less than twice the number of $10 bills. How many bills of each type are there?
  37. Algebra

    wallet contains $290 in $5, $10, and $20 bills. The number of $5 bills exceeds the number of $10 bills by 4, and the number of $20 bills is 3 less than twice the number of $10 bills. How many bills of each type are there?
  38. math

    complete the table that shows the length of the chain formed when rings are liked in a staright line 1)number of rings 1 length of chain 16mm 2)number of rings 2 length of chain 30m 3)number of rings 3 length of chain 44m 4)number of rings 6 length of chain ( ) 5)number of ...
  39. math

    The equation y = -1777x+27153 can be used to predict the number y of gun deaths in the United States x years after 20000, that is, x=0 corresponds to 2000, x=3 corresponds to 2003, x=5 corrresponds to 2005 and so on. Predict the number of gun deaths in 2005 and 2007. In what ...
  40. chemistry

    Criticize the following statements. 1. In an ionic compound, the number of cations is always equal to the number of anions. [Is it ok to say 'not always'?] 2. The molecular formula for strontium bromide is SrBr(sub 2) [what's wrong wih this?] 3. The mass number is always equal...
  41. computer science

    The owner of the super supermarket would like to have a program that computers the monthly gross pay of their employees as well as the employee's net pay. The input for this program is an employee ID number, hourly rate of pay, and number of regular and overtime hours worked. ...
  42. algebra

    1)Find a1 in a geometric series for which Sn=300,r=-3,and n=4 a.15 b.15/2 c.-15 d.1/15 answer=a 2)Find the sum of the infinite geometric series n=1 at the bottom of the sigma notation 20(-1/4)n-1 on the right side a.25 b.80/3 c.16 d.does not exist answer=c 3)Find the sum of ...
  43. algebra

    1)Find a1 in a geometric series for which Sn=300,r=-3,and n=4 a.15 b.15/2 c.-15 d.1/15 answer=a 2)Find the sum of the infinite geometric series n=1 at the bottom of the sigma notation 20(-1/4)n-1 on the right side a.25 b.80/3 c.16 d.does not exist answer=c 3)Find the sum of ...
  44. algebra

    1)Find a1 in a geometric series for which Sn=300,r=-3,and n=4 a.15 b.15/2 c.-15 d.1/15 answer=a 2)Find the sum of the infinite geometric series n=1 at the bottom of the sigma notation 20(-1/4)n-1 on the right side a.25 b.80/3 c.16 d.does not exist answer=c 3)Find the sum of ...
  45. precalc

    Write a formula for converting a measure of degrees in degrees, minutes, and seconds to a decimal number of degrees. The formula should convert, for example, 39º 5’ 34” to 39.093º. The model includes the assumption that a full degree equals 60 minutes and one minute ...
  46. Pre-algebra

    I can't figure out how to solve: Question #1: Two number cubes are rolled and a coin is tossed. Find the number of possible outcomes. Question #2: What is the probability of winning a lottery game where the winning number is made up of 6 digits from 0-9 chosen at random.
  47. Need 8 grade math help quick please!

    I don't understand this. I don't get exactly what I'm supposed to do with the P(parenthes) thingy or how each question differs from the next. Theoretical and Experimental Probability: A number cube with the numbers 1 through 6 is rolled. Find the given probability. 1. P(number...
  48. 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)
  49. math

    THE MAXIMUM NUMBER OF CUSTOMERS ARRIVING DURING RANDOMLY CHOSEN 10-MIN INTERVALS IS 5 AT A DRIVE-IN FACILITY SPECIALIZING IN PHOTO DEVELOPMENT AND FILM SALES. IT HAS BEEN FOUND THE NUMBER OF ACTUAL SALES MADE FOLLOWS THE PROBABILITY DISTRIBUTION IN TABLE BELOW. NUMBER OF SALES...
  50. Algebra

    which of these numbers can be classified as both real and irrational? 1. 5.858585858 2. 63.4 3. root 21 4. root 36 which is both a real number and an integer? 1. 23 2. 1/4 3. root 27 4. 3.402538 which of these number is classified as both real and rational? 1. root 17 2. root ...
  51. math

    mary an jim have tickets to a concert. mary`s ticket number is one less than jim`s ticket number. the product of their numbers is 812. what are the two numbers? (x)(x-1) = 812 This is impossable, as an odd number added to an even number always yeilds an odd. the numbers would ...
  52. Chemistry

    These are what i used. 0.0375M sodium thiosulphate , 2.5% KI .47.2 ml copper sulphate solution. the average volume of Na2S2O3 is 19.25 cm, i have already calculated the number of moles of thiosulphate which is 7.218 * 10-4 moles of Na2S2O3 and also the number of moles of I2 ...
  53. Maths

    Please Could someone tell me what: 1. A square number is 2. A cube number is 3. A triangle number is Thank you Square numbers are the result of squaring an integer (IxI) Cube numbers are the result of the cube of an integer (IxIxI) A triangular number is a number such that the...
  54. Java

    I am supposed to convert a program i already made into a Java console application that uses the Scanner class to read the user's input. This is the code i have that i need to convert. I don't know where to start. Here is the code import javax.swing.JOptionPane; public class ...
  55. Math

    The ratio of the number of cats to the number of dogs in an animal shelter was 2:3. After 120 cats were adopted, the ratio of the number of cats to the number of dogs became 3:7. Find the total number of cats and dogs in the animal shelter in the end?
  56. Computer science

    If we have any five numbers. how do we find maximum and minimum number of those. You take the first number and store it in variable Min and Max. Then you take the second number. If that number is larger than the variable Max you overwrite Max and store that varible there. If ...
  57. Algebra

    Check My answers Please- 1. 3(y + 1) for y = 2 a.6 b.9*** c.7 d.8 2. d + g/h for d = 45, g = 18, and h = 9 a.6*** b.7 c.3 d.4 3.The cost in dollars of a class party is 59 + 13n, where n is the number of people attending. What is the cost for 44 people? a.$116 b.$587 c.$767 d.$...
  58. 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 3rd terms of a ...
  59. Geometry

    Use less than, equal to, or greater than to complete this statement: The sum of the measures of the exterior angles of a regular 9-gon, one at each vertex, is ____ the sum of the measures of the exterior angles of a regular 6-gon, one at each vertex. A. cannot tell B. less ...
  60. Chemistry

    If an element N has isotopic abundances X% of mass number 12, atomic number 6, and Y% of N of mass number 13, atomic number 6. If their relative isotopic mass is 12.35. Find X and Y.
  61. Chemistry

    If an element N has isotopic abundances X% of mass number 12, atomic number 6, and Y% of N of mass number 13, atomic number 6. If their relative isotopic mass is 12.35. Find X and Y.
  62. Chemistry

    How can i tell how many electrons an element has? like Carbon The atomic number is the number of protons in the nucleus AND the number of electrons. Carbon has an atomic number of 6; therefore, it has six electrons. Oxygen is 8; Ne is 10 etc.
  63. Math

    The larger of two numbers is 1 less than 3 times the smaller number. If twice the smaller number is increased by the larger number, the result is 18 more than the larger number.Find both numbers
  64. math

    The difference of two numbers is 321. The larger number is 190 more than twice the smaller number. Which system of equations presents this information? (S = smaller number and L = larger number) I got: L-S=321(the difference) L=2S+190 What did i do wrong please help me
  65. Science

    1. Consider a neutral atom that has 17 electrons A.) how many protons does it have b.) what is it's atomic number c.)which element is it 2. List the following for an atom with 33 protons and 42 neutrons a.) the name of the element b.) the atomic number C.)the number of ...
  66. Math

    Use the pattern "1 less than 3 times the number." Start with the number 5. What is the 4th number in the pattern?
  67. math

    twenty times the square of a non-zero number is equal to 15 times the number. what is the number?
  68. Math

    Four number have an arithmetic mean of 6 if fifth number is added to set the mean rises to 8 what is number added?
  69. math

    If 2 is added to half of a number, the result is one more than the original number. What is the original number?
  70. Math

    If 2 times the square of a number is equal to the 6 times the number,find the number
  71. math

    one number is three more than a second number. Three times the first is 7 less than 2 times the second. Find the numbers. The value of the second number is ___
  72. Maths

    A number decreased by 30 is the same as 14 decreased by 3 times the number. Find the number. Explain!
  73. algebra

    if 7 times a certain number is subtracted from 6, the result is five times the number, find the number.
  74. algebra

    Solve The reciprocal of two more than a number in three times the reciprocal of the number. Find the number
  75. mat

    Three times a number plus 4 equals 15 times the reciprocal of the number. Determine the number.
  76. math

    if eight times a number is increased by three the result is 19 more than six times this number. find the number
  77. maths

    of 3 numbers average of first and second number is greaterthan average of second and third number by 39 then what is difference between first and third number
  78. Math

    If 4 less than 3 times a certain number is 2 more than the number ,what is the number? a.-1 b.-3 c.1 d.2 e.3 Do I solve it like this: 3n-4=n+2?? If so, how do I solve this problem? You have the equation right.
  79. math

    calculate the number of distinct whole number factors of each number...... factors of 18,multiples of 3=
  80. math

    The factors of a number include 9, 12, and 20. What is the smallest number this could be? List all the factors of this number
  81. math

    If the absolute value of a negative number is 2.78 what is the distance on the number line between the number and its absolute value
  82. Math

    22.Two times a certain number added to 40 gives the same result as three times the same number subtracted from 75. What is the number?   a.7 b.11 c.16 d.25
  83. MATH

    1. Which number is a irrational number? A. 0.12 B. 0.1257486... C. 0.12121212... D. 0.111111... 2. Which number is an irrational number? A. 121/ B. 150/ C. 400/ D. 1,000,000/ 3. Which number is a perfect square? A. 32 B. 144 C. 1,000 D. 36,000 4. Sam purhcased 625 squares feet...
  84. number story

    Hi I wanted to know what is a number story? a number story is a story that has a problem that you have to figure out the solution to figure out the answer to the number problem. I know it's a little confusing, but that's the best i can do!!! thank you very much! :-) your ...
  85. math

    Write the number of permutations in factorial form. Then simplify. How many different ways can you and four of your friends sit in the backseat of a limousine? a) 4!; 24 b) 4!; 120 c) 5!; 120 *** d) 5!; 720 Below are the results of tossing a number cube 7 times. Find the ...
  86. Stat

    The following data are the number of persons who were waiting in line at a fast food counter at 100 randomly selected times during the week. At the 0.05 level, test whether the population of these values could be Poisson distributed. x = Number Number of of persons ...
  87. 5th grade math

    A list of numbers represents the following pattern: For each number after the first, multiply the previous number by itself, and then subtract that number. Which list does NOT represent that pattern? A. 1,1,1,1, and so on B. 2,2,2,2, and so on C. 3,6,30,870, and so on D. 4,12,...
  88. math

    the florida lottery is made up of the number 1-49. my mother observed that the winning numbers many times are prim numbers. a. list the prime numbers from 1-49 b. what is the probability of a prime number being picked randomly from the numbers 1-49? c. is the probability of ...
  89. Statistics

    A quiz consists of 10 questions. Each question is marked either “right” or “wrong.” For each student in the class, the instructor keeps a record of the number of right answers the student got. In the class, the average number of right answers is 6.2 and the SD of the ...
  90. Calculus

    Evaluate the definite integral from [0,4] 4x^2 dx, by using its definition as a limit of approximating sums. First, I solve analytically so I know the answer I am trying to reach: 4/3 * x^3 over [0,4] = 4/3 * 4^3 = 256/3 Now, by approximating sums, I can get: 256 * lim(n ->...
  91. math

    I fyou start with 2 and count by 4s until youreach the number 202, you will have the following number sequence. 2, 6, 10, 14...202 If 2 is the first number in the sequence, 6 is the second and so on, what number in the sequence is 202?
  92. Math

    Eighteen students in a class play baseball. Seventeen students in the class play basketball. Thirty students in the class plau either or both sports. Select the Venn diagram that shows the number of students who play basketball and baseball. A.The first diagram shows the first...
  93. checking answers 4 algerbra

    1. simplify by removing the parenthses and collecting like terms. 83q - (39q-38)=44q+38? 2. solve for y---z=ym answer y=z/m? 3. divide if possible -6/"over" 17 divided by (-5/"over"17)=undefined? 4. translate to algerbirc expression the sum of c and n= c+n? 5.one day the ...
  94. math

    a series of numbers starts with 2.each number in the series is two times as great as the number before it.what is the sixth number in the series.
  95. Pre Calc - Probability

    Let S = {2, 8, 14} be a sample space associated with an experiment. (a) List all events of this experiment. A) {2, 8}, {2, 14}, {8, 14}, {2, 8, 14} B) {2}, {8}, {14}, {2, 8}, {2, 14}, {8, 14} C) {2}, {8}, {14}, {2, 8}, {2, 14}, {8, 14}, {2, 8, D) 14} E) ∅, {2}, {8}, {14}, {2...
  96. Math

    A decimal number changed to 23.7 after it was rounded. Give a decimal number that is less than 23.7 and another that is greater than 23.7 that each round to 23.7. Explain to what place each number was rounded.
  97. Math

    Can someone help me with this question? Conduct an interview to find out how someone else responds to the question, " Why is a negative number times a negative number a positive number?" Thanks.
  98. Math

    Hello. 1. 86 is 45% of what number? A. 86 = 0.45n *** B. n = 0.45 x 86 C. 0.45 = n x 86 D. 86 = 45n 2. What percent of 26 is 4? A. 0.26 = n x 4 B. n = 0.26 x 4 C. 4 = n x 26 *** D. 26 = 4n 3. What percent of 250 is 70? A. 3.6% B. 18% C. 28% *** D. 175% 4. 65% of 80 is what ...
  99. math

    Sara is thinking of a number when she rounds her number to the nearest hundred,she gets 700.What is the greatest number Sara can be thinking of?Explain
  100. Math

    Sara is thinking of a number. When she rounds her number to the nearest hundred, she gets700. What is the greatest number Sara can be thinking of? Explain.
  1. Pages:
  2. 1
  3. 2
  4. 3
  5. 4
  6. 5
  7. 6
  8. 7
  9. 8
  10. 9
  11. 10
  12. 11
  13. 12
  14. 13
  15. 14
  16. 15
  17. 16
  18. 17
  19. 18
  20. 19
  21. 20
  22. 21
  23. 22
  24. 23
  25. 24
  26. 25
  27. 26
  28. 27
  29. 28
  30. 29
  31. 30
  32. 31
  33. 32
  34. 33
  35. 34
  36. 35
  37. 36
  38. 37
  39. 38
  40. 39
  41. 40
  42. 41
  43. 42
  44. 43
  45. 44
  46. 45
  47. 46
  48. 47
  49. 48
  50. 49
  51. 50
  52. 51
  53. 52
  54. 53
  55. 54
  56. 55
  57. 56
  58. 57
  59. 58
  60. 59
  61. 60
  62. 61
  63. 62
  64. 63
  65. 64
  66. 65
  67. 66
  68. 67
  69. 68
  70. 69
  71. 70
  72. 71
  73. 72
  74. 73
  75. 74
  76. 75
  77. 76
  78. 77
  79. 78
  80. 79
  81. 80
  82. 81
  83. 82
  84. 83
  85. 84
  86. 85
  87. 86
  88. 87
  89. 88
  90. 89
  91. 90
  92. 91
  93. 92
  94. 93
  95. 94
  96. 95
  97. 96
  98. 97
  99. 98
  100. 99
  101. 100