Valerie

Newest questions and responses by Valerie

  1. Ap chemistry

    a sample of radioactive iodine (half life=3 days) originally weighed 10 g, but now weighs 0.625 g. How old is the sample?

    asked on December 12, 2018

  2. Programming Java

    I am learning Java in programming right now. I need to write a program that should have an output like this: The program says "Type ten names". Then ten names sould be typed a person. Then the program chooses a random name from the list and displays it on

    asked on November 16, 2017

  3. Math

    Find the value of this integer expression: -2(+3+-4+-8++7) Calculate in distributions and without distribution. There are suppose to be an exponent with +3 and when you see ++7 there is suppose to be an exponent.

    asked on November 10, 2017

  4. History

    What were Alexis de Tocqueville contribution to his time period and also what contribution did he make to there character of America?

    asked on November 5, 2017

  5. Math

    Can anyone check this and see if I'm right? A crafts store bought 27 1/4 ounces of potpourri. The shop divides the potpourri into 2 1/2 ounce bags and sells each bag for $4.25. a. how many full 2 1/2 ounce bag of potpourri can the shop make. b. if all the

    asked on October 23, 2017

  7. Math

    Mali-li has 7 1/2 yd of material. Her new skirt will take 4 5/8 yd. How much material will she have left after the skirt is made? 2 7/8 My answer 2 1/8 3 1/8 3 7/8 73 in. =___ ft 776 ft 6 1/2ft this one 8ft 7 1/4

    asked on October 23, 2017

  8. Math

    Estimate these 14/16 + 1/5 2 0 1/2 1 This one 5 2/11 - 3 2/18 3 1 This one? 4 2 7 1/13 * 4 15/17 28 35 this one 48 40 I'm not very positive with the last two answers.

    asked on October 23, 2017

  9. Math

    Are there any problems in this? -3 1/5 / -2/3 = -4 4/5 Here is the work it showed. -3 1/5 / -4 4/5=-16/5 * -3/2=-8/5 * -3/1 = -24/5= -4/5 To me, I think there is something wrong in this the answer suppose to be positive, not negative. The only thing that I

    asked on October 23, 2017

  10. Science

    This is what the chart talks about. A Melt 1 cup of butter chop an onion mix ingredients in a large bowl B Brown the meat in a frying pan boil 6 eggs bake at 350 degrees kendra was looking at recipes in a cookbook. she divided some of the steps of a recipe

    asked on October 20, 2017

  11. Science

    How does the amount of substance affect the rate at which temperature changes? I will like someone to explain this to me, please.

    asked on October 18, 2017

  12. Languege

    Which sentence uses coordinates adjectives? Mario gazes at the large painting of the beautiful lake. Mario gazed at the lake and the beautiful painting. Mario gazed at the large, beautiful painting. Mario gazed at the beauty of the large painting. 2.Which

    asked on October 16, 2017

  13. Math

    Name the subset of the real numbers to which each number belongs divided 113

    asked on October 16, 2017

  14. Social Studies

    Where in North America did the Mound Builders live? in the Southwest in the Northwest in the Central Mexico in eastern North America THIS ONE Which statement best describes the agriculture of the Mayas Each year, they rotated the kinds of crops planted.

    asked on September 27, 2017

  15. Mathematics

    When you are translating a number from scientific notation to standard form, what does the exponent tell you? The number of zeros to add to the end of the original number the number of places to move the decimal point to the left the number of places to

    asked on September 26, 2017

  16. Mathematics

    1.What is 10^3 written in standard form 10 100 1,000 10,000 Please check this, my answer will be the third choice

    asked on September 22, 2017

  18. Science

    What is the goal of technology to understand the natural world to improve how devices operate to improve how people live THIS ONE to understand how systems operate What is a factor that limits a technological design a prototype a trade-off a constraint

    asked on September 19, 2017

  19. Mathematics

    order of operation 16 divided by 4 . 2= I just did 16 divided by 4 which is 4 then multiply it by 2 which is 8 Am I right

    asked on September 16, 2017

  20. Mathematics

    CHECK MY ANSWERS PLEASE 1.9 squared is equivalent to ___ 18 9^2 81 both b and c this one

    asked on September 15, 2017

  21. Mathematics

    Can anyone check my answers please True or false 927 is divisible by 3 and 9 true 13,012 is divisible by 9 false 7,434 is divisible by 6 true 2,064 is divisible by 2,4,and8 true 96,240 is divisible by 2,3,5, and 10 true Am I right?

    asked on September 15, 2017

  22. Mathematics

    Can anyone check my answers please True or false 927 is divisible by 3 and 9 true 13,012 is divisible by 9 false 7,434 is divisible by 6 false 2,064 is divisible by 2,4,and8 false 96,240 is divisible by 2,3,5, and 10 false Am I right?

    asked on September 15, 2017

  23. Mathematics

    You decide you will buy a stock only if it shows an overall increase over the next 30 days. The first 10 days, it has an average daily increase of 0.30. The next 10 days it has an average daily decrease of 0.45. The last 10 days, it has an average daily

    asked on September 12, 2017

  24. Math

    Amy is making a drawing of different things in her neighborhood. One house she drew is 30 feet wide. Her scale drawing of the house is 5 inches wide. Which of the following uses the same scale Amy used to draw this house. A 54 foot-tall water tower is

    asked on September 11, 2017

  25. Math

    Sarah flipped a pair of coins 60 times on 24 occasions, heads appeared on both coins. How is this outcome different from the expected outcome? It occurred 9 more times than expected it occurred 4 more times than expected It occurred 6 fewer times than

    asked on September 10, 2017

  26. English

    What is one theme, or central of "Two Kinds"? Persistence is the key to success High expectations are the key to success Discovering one's own goals and desires is an important part of growing up A family cannot be happy unless the children obey and

    asked on September 8, 2017

  27. Chemistry

    How are the three types of intermomecular forces similar? How are they different?

    asked on July 18, 2017

  29. math

    Explain how to write a function rule from the table below. Then write a function rule. X -2, -1, 0, 1, 2, Y 2.8, 3.4, 4, 4.6, 5.2 Please help

    asked on June 14, 2017

  30. math

    A 128-lb person burns 320 calories per hour riding an exercise bicycle at a rate of 10 mi/hr. a) Write a function rule to represent the total calories burned over time by that person. b) Explain how the information in the problem relates to the function.

    asked on June 14, 2017

  31. Math

    Simplify the polynomial 2x^2 + 6x - 7x + 8 - 3x^2 + 1 A)2x^2 + x + 9 B)-2x^2 - x - 9 C)-x^2 - x + 9 D)x^2 + 9 Please help me

    asked on June 12, 2017

  32. Math

    List three different ways to write 5^11 as the product of two powers. Explain why all three of your expressions are equal to 5^11 Need some help Please!!

    asked on June 9, 2017

  33. Math

    Complete the following task in your discussion group: Create two different situations: one in which you use combinations and one in which you use permutations. Include specific details and an explanation about what makes each situation either a combination

    asked on May 11, 2017

  34. Chemistry 212

    The isotope californium-252 has a half life of 162 days. How many days would it take for 61.7% of the original material to decay? I am using the equation t= (ln(nt/no))/ k and I am first solving for K using: k=(.693/t1/2) the suppose answer can range from

    asked on May 6, 2017

  35. Chemistry 212

    The isotope sodium-22 has a half life of 2.60 years. What is the 1st order rate constant in inverse years? I am using the Ln (A/A0) = -Kt formula. Is that correct?

    asked on May 5, 2017

  36. Science

    1.What challenges does [your topic] pose to biodiversity? 2.What do you think should be done and why? Can someone help me plz!! i have to write a discussion.

    asked on April 3, 2017

  37. Science

    Discuss your opinion of the consequences of artificial selection and the advantages and disadvantages of using genetic information in society. Use facts from your research to support your opinion. Cite the sources for your facts. Also, discuss your answer

    asked on March 7, 2017

  38. Math

    jason weighs 36 pounds together he and his sister weigh four ponuds more than three times the weight of his sister what is the weight w of jason's sister? 36+ w= 3; 18 pounds 36+ w- =3w; 19 pounds 36+ w= 3w+4; 16 pounds 36+ w= 3w -4; 20 pounds

    asked on January 27, 2017

  40. help with trigonometry??

    Jacob is standing 112 m from a building. The angle of elevation when he looks up to the top of the building is 62°. How tall is the building? I don't really understand how to solve this, please help!!

    asked on January 24, 2017

  41. Math

    45 Over 180 *360

    asked on January 16, 2017

  42. Geometry

    In abc, if ab =11 cm and bc =13 cm, what is the possible range of values for ac?

    asked on December 16, 2016

  43. Math

    Carlita saw 5 times as many robins as cardinals while bird watching. She saw a total of 24 birds. How many robins did she see than cardinals?

    asked on November 29, 2016

  44. Science Ms. sue help

    what is the function of a cell wall A) to Protect and support the cell B) to preform different functions in each cell C) to prevent water from passing through the cell D) to prevent oxygen from entering the cell. Help!!!!

    asked on November 15, 2016

  45. Math

    when adding /25 and -9 which type of number is the sum? Plz help me

    asked on November 14, 2016

  46. Math Ms. Sue help me

    What does it mean to say that a number is a perfect square? Give one example of a number that is a perfect square and one that is not. Can you plz help me?

    asked on November 14, 2016

  47. Social Studies

    Throughout the 1900s, many countries in Africa and Asia gained independence from European colonial powers. India is one of these countries, having gained their independence from Britain in 1947. Why did people in India want independence? In what ways was

    asked on November 10, 2016

  48. Math

    How can knowing associative property help you compute 2x8x2 mentally

    asked on October 27, 2016

  49. Math

    15+37

    asked on October 19, 2016

  51. sign language

    can someone help me with sign language please!! 1)_____ of the American Manual Alphabet hand-shapes are formed to resemble the letter they represent A)All B)some C)None 2)what are two main parts of forming signs? A) forming words with your lips and

    asked on October 18, 2016

  52. Science

    what steps are important in the process of creating a scientific theory A) Hypothesizing,observing,and testing. B) Creating a prototype and trouble-shooting. C) Analyzing,Offering an opinion, and evaluating D) Trouble-shooting,hypothesizing,and evaluating.

    asked on October 3, 2016

  53. Math

    Explain the difference in meaning between |-3| and -3. Plzz Help me on this!

    asked on September 29, 2016

  54. Math hellppp!!

    how do you simplify this expression -12/3*(-8+(-4)^2-6)+2 Plzzz Help plzz!!

    asked on September 29, 2016

  55. math

    What is the solution to r/-3=12?

    asked on September 21, 2016

  56. Math

    What is the solution to 5q=-75? Please Help

    asked on September 21, 2016

  57. Social Studies

    What is one change Mansa Musa brought to Mali? A) He sent all of the scholars out of the empire. B) He brought Christianity to the empire. C) He made Islam the empire's official religion. D) He gave the provinces their independence Plzzz!!!! Help Me Plzzzz

    asked on September 21, 2016

  58. Math

    BD bisects

    asked on September 14, 2016

  59. math

    Find the center, vertices, and foci of the ellipse with equation 3x^2 + 8y^2 = 24.

    asked on September 1, 2016

  60. Language Arts Help!!

    10 MS. SMITH: {glossing over his misbehavior and adopting a serious tone as she hands Jason a piece of paper} Yes, ok. So, tell me your plan for the project. Have you consulted this project list yet? You really need to quit putting this off. You're the

    asked on May 25, 2016

  62. Reading Help!!

    Are there any books that are about greedy people that change? Other than Christmas Carol because I'm trying to write a compare and contrast paragraph.

    asked on May 24, 2016

  63. Math Help!!

    You roll a standard cube once. Find P(0) a) 7/6 b) 1 c) 1/2 d) 0

    asked on May 20, 2016

  64. Reading

    What are some books that are about greedy people who change for the better?

    asked on May 20, 2016

  65. Math

    Shelly is working 250 math problems and she wants to finish in 6 days. If she works the same number of problems each day for 5 days how many problems will she have left to work on day 6?

    asked on March 21, 2016

  66. College Algebra

    Deer Valley determined that the cost of these apples was 64 cents per pound. 1. What would be the selling price per pound for the prepackaged apples using a 30% markup based on cost? A 40% markup? A 50% markup? 2. Based on the national average for apples

    asked on December 18, 2015

  67. civics

    Sarah supports ratifying a new Cybercrime society. She would like to write a letter expressing her support. Where would she send her letter? A)to a Supreme Court justice B)to her district representative C)to her senators D)to the president

    asked on November 2, 2015

  68. science

    Why do earthquakes occur along the San Andreas Fault

    asked on October 31, 2015

  69. math

    5 3/8cups=? fl oz

    asked on October 30, 2015

  70. math

    can someone help me with this equation? -3 5/9-1 3/9

    asked on October 29, 2015

  71. math

    An advertisement for a steel-belted radial tire states that this tire delivers 16% better gas mileage. If the present gas mileage is 24.5 mpg, what mileage would you expect if you purchased these tires? Round your answer to the nearest tenth of a mile per

    asked on September 27, 2015

  73. Algebra

    absolute value of 2x+15 less than or equal to -1 2x+15

    asked on September 22, 2015

  74. Grade 11 math

    What is the slope of a driveway that rises 1.1 metres over a length of 10.9 metres

    asked on September 18, 2015

  75. Math

    Solve for x 9x+5=0

    asked on September 15, 2015

  76. English

    What is an homograph.

    asked on August 29, 2015

  77. Math

    During a track meet Kelly throws the shotput 51 feet, 50 feet,and 58 feet. Write an expression that represents the length of her average throw in feet. Evaluate the expression.

    asked on August 27, 2015

  78. Social Studies

    1) Which Geographic Feature most enabled people to cross the himalayas and other northern Mountains to settle the Indian Subcontinent? A) Rivers such as the ganges B)Gorges such as the khyber pass C)Lower mountains such as the Indian Subcontinet. D)Low

    asked on April 8, 2015

  79. present value

    An investment pays you $20,000 at the end of this year, and $10,000 at the end of each of the four following years. What is the present value (PV) of this investment, given that the interest rate is 4% per year?

    asked on April 3, 2015

  80. Acrostic Poem Science!!

    Sodium!! S- O- D- I- U- M-

    asked on March 17, 2015

  81. Physics

    There is an 8 meter tall hill with a circular radius of 20 meters. What is yhe minimum speed a car needs to momentarily lose contact with the road?

    asked on March 2, 2015

  82. Social Studies

    10.Which Piece Of Evidence Supports a Loosening of Islamic Tradition In saudi Arabia? A)The Hijab B) Five Pillars C)Women Politicians D)Prayer Outside The home I Say B) Five pillars

    asked on March 1, 2015

  84. ELEMEMTARY MATH

    WHAT iS THE SQUARE ROOT OF 12 MY ANSWER IS 2, AM I CORRECT?

    asked on January 1, 2015

  85. liberal arts

    A turtle is at the bottom of a 13 foot well. Each day it crawls up 5 feet, but each night it slips back 3 feet. After how many days will the turtle reach the top of the well?

    asked on November 25, 2014

  86. accounting

    Swan Creek Company has 40,000 shares of cumulative preferred 2% stock, $60 par and 50,000 shares of $50 par common stock. The following amounts were distributed as dividends:year 1 30000 my answer was 18000 common stock

    asked on September 14, 2014

  87. Physics

    A small fish is dropped by a pelican that is rising steadily at 0.44 m/s. After 2.6 s, what is the velocity of the fish? The acceleration of gravity is 9.81 m/s^2 Answer in units of m/s & How far below the pelican is the fish after the 2.6 s? Answer in

    asked on September 12, 2014

  88. Test and Measurements

    You are interested in seeing if a new test will help to determine who will be successful in a training program. The current rate of success is 70% for 200 students. When the new test is implemented, the rate increases to 85% for the 50 students who pass

    asked on June 12, 2014

  89. Math

    Two sides of a triangle measure 7 cm and 15 cm . Which of the following could not be the length of the third side ? A. 5 cm B. 9 cm C. 15 cm D. 22 cm I'm confused because at first I tried Pythagorean thereom and it didn't really work .

    asked on June 4, 2014

  90. physcial science

    Jennifer, who has a mass of 50.0 kg, is riding at 35.0 m/s in her red sports car when she must suddenly slam on the brakes to avoid hitting a deer crossing the road. She strikes the air bag that brings her body to a stop in 0.500 s. What average force does

    asked on May 8, 2014

  91. physics

    Which of the following situations represents a negative displacement? (Assume positive position is measured vertically upward along a y-axis.)

    asked on April 29, 2014

  92. Trigonometric Function

    A Ferris wheel has a radius of 10 meters and is revolving 6 times each minute (wheel's frequency.) The wheel's center is 12 meters from the ground. If time starts on the ground, then find a sine function that shows the height from the ground for a car on

    asked on April 15, 2014

  93. Pre cal

    Translate the graph of y=sinx to the right by pi units, and then reflect this curve about the x-axis what graph result?

    asked on April 11, 2014

  95. Physics

    a 5 kg crate falls from a height of 2.0 m into an industrial spring scale. When the crate comes to rest the compression of the spring is 24 cm. what is the spring constant?

    asked on April 4, 2014

  96. Child Care

    Please help me, I need to make a Lesson Plan on diversity, for Pre-k, I choose a story book, of children from different parts of the world, each going to and learning in school or on the outside. The goal should show differences but also its similarities.

    asked on March 9, 2014

  97. accounting

    determine how the disallowance of LIFO will impact U.S. multinational firms that report under IFRS.

    asked on January 18, 2014

  98. math

    Which one(s) of these twelve brands would be considered outliers, if there are indeed any at all? How extreme does something have to be considered an outlier? Brand,Strawberry,Vanilla 1,140,140 2,210,230 3,200,170 4,200,180 5,110,100 6,180,180 7,210,150

    asked on November 14, 2013

  99. physics

    A 7g bullet going at 300m/!@#$%^&s and embeds itself into a 3.456kg block held on a frictionless table by a spring with k = 40N/m. Find the speed of the block and bullet after collision.

    asked on November 8, 2013

  100. Computer Science

    Write a class “Program1” that has the method “allLess” (below) that receives two arrays of integers and returns true if each element in the first array is less than the element at the same index in the second array. For example, given the arrays

    asked on September 3, 2013

  101. English

    I am doing my summer reading for 9th grade reading assignment & need to write about 10 passages from a variety of literary terms. Could you explain some of these terms?

    asked on August 29, 2013

  102. Statistics

    Blossom's Flowers purchases roses for sale for Valentine's Day. The roses are purchased for $10 a dozen and are sold for $20 a dozen. Any roses not sold on Valentine's Day can be sold for $5 per dozen. The owner will purchase 1 of 3 amounts of roses for

    asked on August 6, 2013

  103. College Physics

    A speck of charged dust with a mass of 39mu g. is kept levitating by putting it in an electric field. If you must apply a field of 10 N/C to keep it suspended in mid-air, what is the charge on the speck of dust? Can someone please help soon? I got this

    asked on April 26, 2013

  104. College Physics

    The rectangular coils in a 201-turn generator are 14 cm by 17 cm. What is the maximum emf produced by this generator when it rotates with an angular speed of 525 rpm in a magnetic field of 0.81 T? I'm not sure what equations to use.

    asked on April 25, 2013

  106. Physics

    A particle with a charge of 31 µC moves with a speed of 62 m/s in the positive x-direction. The magnetic field in this region of space has a component of 0.50 T in the positive y-direction, and a component of 0.61 T in the positive z-direction. What is

    asked on April 25, 2013

  107. Physics

    A particle with a charge of 31 µC moves with a speed of 62 m/s in the positive x-direction. The magnetic field in this region of space has a component of 0.50 T in the positive y-direction, and a component of 0.61 T in the positive z-direction. What is

    asked on April 25, 2013

  108. Physics

    Two trains with 112-Hz horns approach one another. The slower of the two trains has a speed of 26 m/s. What is the speed of the faster train if an observer standing near the tracks between the trains hears a beat frequency of 4.7 Hz? (Express your answer

    asked on April 24, 2013

  109. CHM

    Consider the following reaction: HCN H+ + CN- delta H = 315kJ If 1.00 mole of CN- in the form of NaCN was added to equilibrium mixture, describe the effect on [H+], [HCN], [CN-], pH, and heat.

    asked on April 16, 2013

  110. Physics

    A solenoid is 3.2 m long and has 500 turns per meter. What is the cross-sectional area of this solenoid if it stores 0.32 J of energy when it carries a current of 12 A? So I used L = 2*E / I^2; and then I used A = L*l / (uo * N^2) but my answer isn't

    asked on April 15, 2013

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