Newest questions posted by NA
  1. algebra

    Jacob and Robert work at a restaurant. On Friday night, Jacob earns $12 per hour and Robert earns $7.50 per hour in addition to $15 in tips. Which graph shows the amount of money earned by Jacob and Robert?
  2. Chemistry

    How can we recover NaNO3 from an unsaturated solution
  3. Math

    The scale on a map is 1 in: 4 miles. Find the actual distance in miles for each length on the map. 1/ 2 in. Answer: d=8 2/ 7.2 in. Answer: d=288 3/ 3.5 in. Answer: d=140 4/ 11 in. Answer: 44 Write the ratio as a scale in simplest form. 3cm\15cm Answer: 1/5
  4. Math

    Sid wrote 541,309 on his paper. Using numbers and words,explain how the number would change if he exchanged the digits in the hundred thousands and ten places
  5. ashford university

    Which of the following methods would be most successful for encouraging self-regulation in young children?
  6. Algebra

    Determine the measure of each exterior angle. The triangle looks like an upside down A with one line running longer at the point. The inside angles are A- 50 and in the next corner 75. In the bottom of the A-letter I need to solve for C and A and the extra
  7. math

    A circular pond 26 yds in diameter is surrounded by a gravel path 2 yds wide. The path is to be replaced by a brick walk costing $50 per square yard. How much will the walk cost?
  8. physics kinematics

    A river flows at 2m/s the velocity of a ferry relative to the shore is 4m/s at right angles to the current what is the velocity of the ferry relative to the current?
  9. physics in kinematics

    ebo throws a ball in the air it's velocity at the start is 18m/s at an angle of 37° to the ground express the initial velocity in component vector form?
  10. Chemistry

    Write the balanced chemical equation for the reaction of the weak acid HCN with water. Include the phase of each species.
  11. Error Analysis

    Please help me find the wrong grammar, word use and sentences structure for me.. *It's not essay. It's my homework from teacher to modify What can you do to reduce global warming in Thailand Global warming is big problem for the word. Now, the word want
  12. Calculus

    evaluate each of the following integral:- I= ∫((x^2+ 1)/(x^4+ 1))dx Y=∫(sinhxcoshx)dx/√(sinhx^4+coshx^4)
  13. chemistry

    In the following reaction, how many grams of lead(II) nitrate Pb(NO3)2 will produce 425 grams of sodium nitrate (NaNO3)? Pb(NO3)2(aq) + 2 NaBr(aq) PbBr2(s) + 2 NaNO3(aq) The molar mass of Pb(NO3)2 is 331.21 grams and that of NaNO3 is 85 grams.
  14. science

    The cider is heated from an initial temperature of 4°C to a final temperature of 65°C. The steam enters the heat exchanger as 50% quality steam and exits as water condensate at 85°C. Calculate the mass of steam required to heat 150 kg of cider. (For the
  15. Math

    Subtract money amounts 1/ Aidan has $5.00 to buy a can of tennis balls that cost $3.79. How much change should he get back? 2/ Sylvia has $10.00 to buy a hairbrush that cost $ 6.88. How much change should she get back?
  16. English

    Write the vocabulary word from the word box that matches each idea. Communicate - flick - alert- signal - chatter - grooms. 1/ make neat and clean . Answer: grooms 2/............. to tell a person or animal something. Answer: communicate 3/
  17. chemistry

    Mr. Arswan iss preparing a mixture for a science experiment. He measures 10.5 grams of wood shavings, 150 grams of iron filings, and 18.50 grams of salt. What is the total mass of Mr. Arswan`s mixture? A 30.5 grams B 179 grams C 150.5 grams D 17.9 grams
  18. Math

    45 divided by 5/11 4/7 divided by 7/8 2 1/2 divided by 4 5/7x =140 Please help Thanks
  19. Physics Help

    A 3.50-inch floppy disk in a computer rotates with a period of 2.02E-1 s. What is the angular speed of the disk?
  20. Math

  21. Physics

    A 1.70-kg block slides on a rough, horizontal surface. The block hits a spring with a speed of 2.00 m/s and compresses it a distance of 11.3 cm before coming to rest. If the coefficient of kinetic friction between the block and the surface is μk =

    An electron is located on a pinpoint having a diameter of 2.04 µm. What is the minimum uncertainty in the speed of the electron?
  23. english grammar

    a or b) for each number as well as an explanation of why you made that choice. just need help explaining why? Answer A 4a. John has become a rather good actor. 4b John has became a rather good actor. Answer A 5a. Some athletes have taken drug tests to
  24. physics

    A drag racer accelerated from 0 to 475km/h in 4.88 s. Assuming a constant acceleration, how far did it travel?

  26. physics

    A diver springs upward from a board that is three meters above the water. At the instant she contacts the water her speed is 9.6 m/s and her body makes an angle of 84 degrees with respect to the horizontal surface of the water .
  27. science

    what volume of benzene ( C6H6 d=0.88g/ml molar mass = 78.11) is required to produce 1.5*10^3 kj of heat
  28. physics

    find the distance light travels from its starting point, S, to its final point, F, by traveling two different paths: Note: you'll need to know Pythagorean Theorem.
  29. physics

    a butterfly at eye level is 20 cm in front of a plane mirror. you are behind the butterfly, 50 cm from the mirror. what is the distance between your eyes and the image of the buterfly in the mirror?
  30. algebra

    f(x)=x+2x+3 and x=1&6
  31. Algebra

    3.To estimate animal populations, biologists count the total number of animals in a small section of a habitat. The total population of animals is directly proportional to the size of the habitat (in acres) polled. a.Write an equation using only one
  32. geometry

    find the 2 missing patterns 1,2,6,24,120,.. 2,4,8,16,32,.. 1,1/4,1/9,1/16,1/25,.. 1,1/2,1/3,1/4,..
  33. geometry

    find the 2 missing patterns 1,2,6,24,120,.. 2,4,8,16,32,.. 1,1/4,1/9,1/16,1/25,.. 1,1/2,1/3,1/4,..
  34. geography

    what is a narrow arm of the sea at the mouth of a river where the ocean tide meets the river current called?
  35. development

    To what extent does development mean more than than economic growth? Development of what? Please clarify your question and tell us what you think the answer is. We'll be glad to critique your ideas.