Questions Asked on
September 12, 2017

  1. Science

    1. Which statement best describes the relationship between science and technology? >>A. The goal of science is to gain an understanding of the natural world, while the goal of technology is to use that understanding to improve people's lives.

    asked by Ahxello
  2. chemistry

    Which answer choice correctly explains the role of the kinetic theory of matter in the process of solutes being dissolved into solvents? The continuous motion of the particles in the solvent and solute cause them to collide with one another, which results

    asked by PLEASE help
  3. chemistry

    Which way of dissolving does NOT change the chemical identity of the solute? disintegration dissociation ionization dispersion is it a?

    asked by PLEASE help
  4. Algebra

    Your cell phone plan costs 55 dollars a month, plus 35 cents per minute. Write an equation to represent the monthly bill of the cell phone plan.

    asked by Serenity
  5. Language Arts

    In the third wish the king of the forest claims that he has yet to hear of the human being who made any good use of his three wishes in a paragraph consider whether mr peters proves the king wrong do mr peters wishes bring him happiness does he put his

    asked by Marisa
  6. lhs

    The Renaissance coincided with classical antiquity 2. Van Eyck's paintings lack any reference to this the Protestant reformation 3. Brueghel’s detailed portraits of daily life are called genre 4. The people he liked to paint heroic 5. In the painting The

    asked by njk
  7. Chem

    What volume of water, in mL, is needed to dissolve 8.7 mg of carbon monoxide gas when the partial pressure of carbon monoxide above the water is 1.6 atm at 25 °C? The Henry's constant for carbon monoxide gas in water at 25 °C is 9.5×10-4 M/atm.

    asked by SR23789
  8. Algebra

    Andy and Sylvie each incorrectly simplified the expression -3 - 4(2x - 3). Andy wrote -14x + 21 and Sylvie wrote -8 - 6. Explain their errors and give the correct answer. My answer: What Andy did wrong is adding instead of subtracting and adding the

    asked by Katelyn
  9. Math

    What is four times the difference between 57 and 29

    asked by Gerald
  10. Chemistry - Van't Hoff Factor

    How do I determine the van't hoff factor for a strong unknown electrolyte? I have the freezing point depression, (0.46 C) and there 18 ml of the unknown solution. I know the formula is T=iKfm, but I don't know how to apply it when I don't know m.

    asked by Allison
  11. Graphic Design

    What are the three main purposes of design?

    asked by Anonymous
  12. Science, Example PLZ?

    Using an example, explain how being able to understand scientific principles and think scientifically can help you solve problems and answer questions in your everyday life. Have Any Example? I Sure Dont Have Any... Can You Give Me An Example Or Two Since

    asked by Algalla
  13. 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 by Valerie
  14. Calculus (Need Help) - Rectilinear Motion

    Rectilinear Motion: *Need help with these three!* Directions: The position function of a particle moving on a coordinate line is given by the following eq'ns, where s is in feet and t is in sec. Describe the motion of the particle for any time. Make a

    asked by Morgan
  15. Language arts

    In the third wish the king of the forest claims that he has yet to hear of the human being who made any good use of his three wishes in a paragraph consider whether mr peters proves the king wrong do mr peters wishes bring him happiness does he put his

    asked by Anonymous
  16. Social Studies

    What prompted the establishment of the Articles of Confederation? States needed to be sure that they maintained control over their land. Colonies wanted to show Britain that they were an organized union.***** Delegates thought that the colonies needed to

    asked by Snow
  17. math

    What is the value of 14 – a2 given a = –3?

    asked by jj
  18. Math

    A cow is tied on a 50-foot rope to the corner of a 20-ft by 50-ft rectangular building. The cow can graze on any of the grass it can reach. What is the area on which the cow can graze?

    asked by Nascire
  19. maths

    By increasing the speed of a car by 10km/hr the time of journey for a distance of 72 km is reduced by 36 min. Find the original speed of the car ?

    asked by kumar
  20. Physics

    Two hockey players strike a puck of mass 0.168 kg with their sticks simultaneously, exerting forces of 1.16 103 N, directed west, and 9.90 102 N, directed 30.0° east of north. Find the instantaneous acceleration of the puck.

    asked by Abby
  21. math

    to which subset of real numbers does the number -22 belong?

    asked by Matthew
  22. Science/Math

    7. A student measures the mass of a paper clip. The student’s data table is shown below. The accepted value for the paper clip’s mass is 1.14 g. Trial # Mass 1 2.45 g 2 2.40 g 3 2.42 g Which of the following best describes the student’s measurements?

    asked by Algalla
  23. Math

    A rectangular glass tank is half filled with water. The measurements of the tank are 30cm in height, 25cm in length and 20cm in width. How many litres of water will raise the water level in the glass tank by 5cm?

    asked by Kate
  24. Science

    2. what is a factor that limits a technological design?

    asked by dani
  25. Biology

    What are the roles of hydrogen peroxide, oxygen, hydrogen, and catalase in the following chemical reaction? catalase 2H2O2 > O2 + 2H2O A. Catalase is an enzyme, O2 and H2O are substrates, and H2O2 is a reactant. B. Catalase is a substrate, O2 and H2O are

    asked by Bill
  26. math

    Of all the species in the world, 4 out of every 5 are insects. What percentage of species are insects?

    asked by madaline
  27. English

    1. He tried to climb the tree. 2. He tried climbing the tree. 3. He wanted to climb the tree,so he did his best, but he couldn't climb the tree. 4. He climbed the tree to check whether he could stand on the thick branches to pick fruit.

    asked by rfvv
  28. CHEM HELP! (Check work)

    H3CA is a vitally important intemediate in the metabolism of carbohydrates. The compound is widely distributed in plant and animal tissues and fluids. H3CA is a tiprotric acid, ie, it requires three moles of NaOH to fully neutralize one mole of H3CA. a.)

    asked by Morgan
  29. Nature Photosynthesis

    Can you help me with making a acrostic poem with the word Photosynthesis Itll really help me thanks im only eleven so thank you for hwlping if you do!!!

    asked by Red Rose
  30. Statistics

    study looked at the effects of light on female mice. Fifty mice were randomly assigned to a regimen of 12 hours of light and 12 hours of dark (LD), while another fifty mice were assigned to 24 hours of light (LL). Researchers observed the mice for two

    asked by Mariam
  31. English

    Choose the letter of the word or phrase best matches the word in italics. The campfire was visible *glimmering* between the trees. Answers are Intermittently, Intermittently conspicuously Brightly Weakly I think it's weakly.

    asked by Alexa
  32. chemistry

    Examine the scenario. A soda factory dissolves carbon dioxide (CO2) into water (H2O) as part of its manufacturing process. Which answer choice correctly categorizes the solution the soda factory is creating? liquid-gas gas-liquid liquid-liquid solid-liquid

    asked by check please
  33. Chemistry

    Write out a balanced chemical equation to show the dissociation reaction of magnesium carbonate in distilled water

    asked by Lisa
  34. Math

    Dave takes out a 23-year mortgage of 200000 dollars for his new house. Dave gets an interest rate of 13.2 percent compounded monthly. He agrees to make equal monthly payments, the first coming in one month. After making the 65th payment, Dave wants to buy

    asked by Nicole
  35. Chemisty - Colligative properties/freezing point

    QUESTION: How do you determine the molar mass of the unknown, nonelectrolyte compound for each trial? This is for a lab. My data is: freezing point of solvent (water): -0.58 freezing point of unknown: -0.93 Mass of solvent (water): 19 ml Mass of unknown:

    asked by Jamie
  36. chemistry

    For a 0.50 molal solution of sucrose in water, calculate the freezing point and the boiling point of the solution. Please list each step.?

    asked by william
  37. Science

    In order to reproduce, flowering plants must do what? A. split into two cells B. release seeds C. regenerate D. mate I think the answer is b.

    asked by Zoey
  38. Science/Math

    6. A student measures a rectangular room to be 20.0 m × 17.16 m. Which of the numbers below represents the room’s area with the correct number of significant figures? (1 point) • 340 m2 • 343 m2 • 343.2 m2*** • 343.20 m2

    asked by Algalla
  39. algebra

    thank you Steve for helping me out. Accurately classify the sequence and then create a corresponding explicit and recursive formula for finding the nth terms of each sequence. A. 32, 30, 28, 26,..... B. 9,-3, 1, - _1 .......

    asked by matthew
  40. Mathematics

    Of the set (-5,5,-3,8) which two numbers have the same absolute value. I'm having trouble trying to solve this I'd be great anyone help explain it.

    asked by Luf
  41. math

    Josie measured a city park and made a scale drawing. The scale she used was 14 centimeters = 5 meters. The actual width of the soccer field is 80 meters. How wide is the field in the drawing?

    asked by shyah
  42. algebra

    1. solve 2x + y = 7 for y 2. solve 2y - 18x = 26 for y 3. solve 20x + 5y =15 for y 4. solve 9x - y = 45 for y 5. solve 6x - 3y = -6 for y 6. solve 4x - 5 = 7 + 4y for y

    asked by boB
  43. Math Help

    A paintball gun shoots a ball at 88 feet per second. Convert this to miles per hour. Use 1 mile = 5280.

    asked by Miza
  44. EPI

    I need help finding a principle of economics. The principal is people choose. The text is called "Why we're still fighting the civil war " by David Von Drehle. Time Magazine has the article. My answer is "Abraham Lincoln said that a single issue dividing

    asked by Aria
  45. Math

    Two families met at a par for a picnic at the end of the day, they part ways. Family A leaves 15 minutes after Family B and travels east at an average of 42 mph; while family B travels west at an average of 50mph. Both families have an approximately 160

    asked by Anonymous
  46. algebra 2

    Two families met at a par for a picnic at the end of the day, they part ways. Family A leaves 15 minutes after Family B and travels east at an average of 42 mph; while family B travels west at an average of 50mph. Both families have an approximately 160

    asked by KAYLA_ PLEASE IGNORE FIRST TIME I ASKED THIS
  47. precalc

    (-2)^x = - 1/128 solve for x

    asked by tom
  48. science

    c6h12o6(aq)+6o2(g)->6co2(g)+6h2o(l) ∆h=-2820kj c2h5oh(aq)+3o2(g)->2co2(g)+3h2o(l) ∆h=-1380kj hitunglah reaksi c6h12o6(aq)->2c2h5oh(aq)+2co2(g)

    asked by sarah
  49. social studies

    Which of the following was an achievement of the Mayas? 1) a system of canals in their main city? 2) the city of Tenochtitlan 3) a calendar 4) a strong army I think it is 1 but not sure. Thanks for your help.

    asked by Jamie
  50. Algebra 1

    which property is illistrated by the following statment 3+x=x+3

    asked by Christopher wood
  51. Science

    How can the body of an animal stay healthy? a.fighting disease b.making food c.getting enough sunlight d. reproducing I think it is c.

    asked by Zoey
  52. Interview

    One day, a pharmacy school classmate gives you a sheet containing questions for an upcoming exam. How would you handle the situation and what issues would you consider important in coming to a decision about what to do?

    asked by Veronica
  53. Chemistry

    To make a 5.0L solution that is 38.8% NaCl by weight in water. How much salt should you add to the 5.0L to prepare?

    asked by Anita
  54. Geography

    Mapmaker

    asked by Sumer
  55. math

    meredith wants to paint 3 of the walls in her room each wall has the shape of a rectangle with dimensions 10 feet by 12 feet she has 1 can of paint that will cover approixmately 420 square feet which method can meredith use to determine whether or not she

    asked by sam
  56. algebra

    simplify log (xy/z^2) log^5square root a^4/b^2

    asked by matthew
  57. chemistry

    SO2 and O2 are placed in a 2.00 L container at a temperature of 786 °C and a pressure of 6.99 atm. During the reaction, SO3 forms and the pressure falls to 1.89 atm. Determine how many moles of SO3 are generated.

    asked by leo
  58. Physics

    2 Dimensional Motion-Kinematics QS 1: An airplane wishes to travel 800 km northeast of a starting point. There is a wind blow towards the east at 100km/h. Assuming the maximum speed of the plane in still air is 500km/h, a: what course should the pilot

    asked by mack
  59. Statistics

    A statistics class is made up of 60% women and has 21 women in it. What is the total number of students in the class?

    asked by Mariam
  60. Chemistry

    2 gram of Potassium Sulphate was dissolved in 12.5 ml of water on cooling the first crystals appeared at 60 degree Celsius what is the solubility of Potassium Sulphate in water at 60 degree Celsius

    asked by Als
  61. Pre Algebra

    What is the solution to -55+q=7? P.S if you happen to Have any more answers to the other questions that is greatly appreciated

    asked by Help?
  62. math/science

    1. what type of failure occurs when we cut paper with scissors? 2. what type of failure occurs when you spread butter on toast? strength, stiffness, or stability

    asked by lila
  63. math

    Let N N denote the natural numbers {1,2,3,4,...}. Observe a f that satisfies f(1)=1, f(2n)=f(n), f(2n+1)=f(2n)+1 for all n that are natural numbers. Write a algorithm for f(n).

    asked by Suze
  64. 1 grade math

    if i have 9 cows and 10 more cows come in how many cows do i have. 9+10=?

    asked by Jenny
  65. Math

    The park department planted oak and mapel trees in a 5 to7 ratio. They planted 360 trees. How many mapel did they plant?

    asked by Devon
  66. Math

    What is 3/4 divided by 2/9

    asked by Jenny
  67. algebra

    solve y - 3x = 13 for y

    asked by boB
  68. Chem.

    A balloon has a volume of 240 mL at room temperature (25°C or 298 K). What temperature would you have to heat or cool the balloon to in order to change its volume to 360 mL (Answer in Kelvin)? please write out the formula and how you solved this so I can

    asked by Sandee
  69. Algebra

    A cashier has only one dollar bills, quarters,and dimes. List all the ways you could receive $2.50 in change $1 Bills Quarters Dimes Ex. 2 2 0

    asked by jhon
  70. Math

    Can someone please help me to find the number that is divisible 2,3,4, and 5

    asked by Young Lil G
  71. chemistry

    Why is CO2 not ionic?

    asked by william
  72. Math

    Johanna has 100 books she wants to finish by the end of the month. Today is the 1st day of the month if the month ends in the 31st. How many more days does Johanna have left to read 100 books

    asked by Johanna
  73. Math

    A furniture store delivers without charge to any location within 100 mi of the store. About what is the area of this region?

    asked by Nascire
  74. Chemistry

    What mass of MgCl2 should be dissolved in 75.0 g H2O to produce a solution that is 38.5% solute by mass?

    asked by SR23789
  75. Calculus

    Rectilinear Motion Discuss the Velocity, Acceleration, and Speed: 1. s(t)=2t^2 +8t-7 2. s(t)=3t^4 -16t^3 +24t^2

    asked by A
  76. algebra

    identify if the given functions are one to one 1. f(x)=x^3-7x 2. g(x) = square root x-3+1 3. h(x)=4x^4-2x^2+11

    asked by Kevin
  77. Chemistry - Colligative properties/freezing point

    I need help on my lab. I think I have all the data and steps right, but my results aren't making sense: Feezing point of water: -0.58 C Freezing point of Unknown: -0.93 C Freezing point depressions: 0.34 C Mass of unknown: 1.045 g, mass of solvent (water):

    asked by Jamie
  78. Math

    Whats a whole number and whats 240,000 multiplied by the power of ten?

    asked by Daija
  79. Math

    If a man run 10 miles in 3 hours, how many miles he run per minute?

    asked by Alyvia
  80. Algebra 1

    what is the value of xy/z if x=-2 y=-3 z=4

    asked by Christopher wood
  81. Algebra

    (20-14)^2 ÷ 12 a. 1 b. 3 ** c. 17 d. 0.5

    asked by Destiny
  82. 7th Grade Math

    What value(s) can x have if x = |7|? Explain.

    asked by Jerry
  83. Maths

    X, is assumed to be a random variable by placing letters of the word “YACHT” in a hat. If these letters are withdrawn then it gets replaced. A value of 1 is given when a vowel is retrieved, and a value of 2 is given when a consonant is retrieved while

    asked by Anonymous
  84. Science

    How does salmon increase the chances of the survival of it species? a.lays a thousand eggs b.splits into two c.nurtures it young d.lays one egg I think it is a.

    asked by Zoey
  85. Maths

    Expressions

    asked by Philly
  86. graphic design please help

    i tried to find the answer but i come up with nothing please help any links or any thing will be helpful In 1-2 paragraphs describe the importance of prioritizing your focus when designing for multiple purposes

    asked by helper/student
  87. Equal riddle

    I am between 20 to 30.when u put me into 5 equal group, there is an odd number in each group and one is left over.what number am i

    asked by Erika
  88. English

    Five simple subject on valentine

    asked by Anonymous
  89. Phy sci

    If you are travelling at 35mph and it takes you 25 seconds to stop, how far have you gone?

    asked by Spencer Brown
  90. Algebra

    Find an equation of a line parallel to the given line and contains the given point. Write the equation in slope-intercept form. a. line 2x+3y=2 , point (0,0) b. line y+4=0, Point (-5,3)

    asked by Keonn'a
  91. Algebra

    Find an equation of a line perpendicular to the given line and contains the given point. Write the equation in slope-intercept form. a. line 3x+y=5, point (-1,2) b. line y=3x+1, point (6,1)

    asked by Keonn'a
  92. Biology

    What is a protein that transports ions across the plasma membrane without requiring energy or changing shape?

    asked by Sara
  93. Math (Please Check)

    X, is assumed to be a random variable by placing letters of the word “YACHT” in a hat. If these letters are withdrawn then it gets replaced. A value of 1 is given when a vowel is retrieved, and a value of 2 is given when a consonant is retrieved while

    asked by Anonymous
  94. Chemistry

    Ammonia has a molar mass of 17.0 Gram molecules hydrogen chloride has a molar mass of 26.5 Gram molecule what is the ratio of their diffusion rates

    asked by Als
  95. Math

    Given A is (-2,3),Find point B,given their distance is 7 units

    asked by Anna
  96. Math

    Using two examples for each operation (addition, subtraction, multiplication and division), use two fractions which will equal 2/5.

    asked by Anonymous
  97. Calculus

    let f(x)=1x f(x)=1x and g(x)=x2 +5x.g(x)=x2 +5x. find (f⋅g)(x)(f⋅g)(x) Can someone help me with this I dont know how to do this

    asked by Misha
  98. chemistry

    What is the mass of the organic substance formed by heating of 21.0g of butanoate of ammonium, admitting that the reaction presents a yield of 50%?

    asked by william