vicki

Newest questions posted by vicki
  1. math

    Leila is making shell designs. She can make six designs in one hour. She wants to make 30 shells designs, how many hours does she need to make all 30? Make 2 math sentences
  2. math

    How many different pizza combinations can I make if I have 2 different types of crust, 2 cheese choices, 7 different meats, and 13 different vegetables
  3. Algebra

    The current in a stream moves at a speed of 8mph. A boat travels 13 mph up stream and 13 mph downstream with a total time of 3 hrs. What is the speed of the boat is still water?
  4. Algebra

    The temperature fell by 9°F today right a sign number to represent this temperature change
  5. Math

    A truck is carrying pear juice, cherry juice, and apple juice bottles in a ratio of 3:1:3, If there are 16 cherry juice bottles how many juice bottles in all? Pear juice #? Cherry juice 16 Apple juice #? 3:1, 1:3 3pears to 1cherry; 1apple to 3cherry There
  6. chemistry

    How many grams of sucrose are in 1.5kg of a 10.5% (by mass) solution of sucrose?
  7. algebra

    an investor has $30,000 to invest. if part is invested at 5% and the rest at 9%, how much will be invested at 5% to yield 8% on the total amount? use I=PRT
  8. Find the GCF of the monomials

    3xy, 6xz, and 9yxz is  ___________________________
  9. Electronics, Physics, Math

    5. A circuit is supplied with 30 VDC and contains three resistors connected in series. The value or R1 is 80Ω, the value of R2 is 1,000Ω , and the value of R3 is 4,200Ω . What is the voltage drop across R2? A. 5.68 V B. 2.14 V C. 4.61 V D. 6.82 V I keep
  10. Electronics, Physics

    In a circuit, a 10 Ω resistor is connected in series to a parallel group containing a 60 Ω resistor and a 5 Ω resistor. What is the total resistance in this circuit? A formula and explanation would be great!
  11. Algebra

    x^4-4x^2-45=0
  12. Algebra

    Solve the following equation. 16x-8square roots of x = 35
  13. Algebra

    Use the properties of exponents to simplify as much as possible (8a^3b^6)^(1/3)/(16a^8b^-4)^(1/4)
  14. Algebra

    What is the square root of 49a^4+686a^3+2401a^2 Do NOT assume that a represents a positive number
  15. Algebra

    (5x^(1/3)+1)(25x^(2/3)-5x^(1/3)+1)
  16. Algebra

    (t^(1/2)+2)^2
  17. Algebra

    Simplify the following into a single expression x^3/(x^2-1)^5/8 + 2x(x^2-1)^3/8
  18. Algebra

    Factor the following as if it were a trinomial 9t^1/1-25
  19. Algebra

    Use the properties of exponents to simplify (r^-3s^1/3)^6/(r^7s^3/2)
  20. Algebra

    (r^-3s^1/3)^6/r^7s^3/2
  21. Algebra

    f(x) = -2x^2 + 5x -1 Find f(x) - f(a)/x-a
  22. Algebra

    A person riding a Ferris wheel with a diameter of 64 feet travels once around the wheel in 25 seconds. What is the average speed of the rider in miles per hour? (Round your answer to one decimal place.)
  23. science

    If a kestrel eats a mouse that eats grass, the kestrel is a
  24. Probabilitys Math

    After the last game of the season a football team goes out for ice cream. Each player orders a triple cup of ice cream with a topping.Each order has 3 diffrent flavors, order doesnt matter.The shop has 7 diffrent flavors and 2 toppings to choose from iss
  25. Science

    Cottage roof timber from Ireland. Date: 906 ± 35 years. What is the BP Date?
  26. Science

    Cottage roof timber from Ireland. Date: 906 ± 35 years. What is the BP Date?
  27. Science

    Pleistocene mammoth bone from La Brea Tar Pits of Los Angeles, California. Age: 12,200 ± 35 years. What the BP Date?
  28. Chenistry

    Be able to calculate the pH of a solution prepared by mixing 50.0mL of 0.200M NaH2PO4 (pKa2=7.20) with 50.0mL of 0.120M NaOH. I did work out a pH of 7.38 but I am not sure if i need to take into account any dilution of the mixing of solutions and do you
  29. physics

    A parachute on a person jumping from a plane opens and changes the speed of the person from 65m/s to 35m/s in a period of 4.2 seconds. What is the acceleration of the person?
  30. physics

    A parachute on a person jumping from a plane opens and changes the speed of the person from 65m/s to 35m/s in a period of 4.2 seconds. What is the acceleration of the person?
  31. Algebra

    In 1999 there were 200,000 registered dogs that were Labrador retrievers and dachshunds. There were 3 times as many Labrador retrievers as dachshunds. Find the number of Labrador retrievers and dachshunds
  32. chemistry

    Calculate the number of moles in 3.50 x 1021 atoms of silver.
  33. English

    Can someone help me! The word metaphor comes from the Greek prefix meta-, meaning “across,” and pherein, meaning “to carry.” Which of the following words does not contain the Greek prefix meta-? a. metaphysics b. metamorphosis c. metallic
  34. Chemistry

    How many grams of barium nitrate is needed to form a solution with 5.00 mass% Ba (NO3)2 in 400 grams of water.
  35. cis106

    Explain the differences among LANS, WANS, CANS, and MANS.
  36. CHEMISTRY

    The solubility of a compound in water is 6.8g/100ml at 0.33g/100ml at 25 degree celsius. Calculate the amount of water required to crystallise 10g of the compound. If the pure compound is collected at 25 degree celsius, what is the maximum possible yield
  37. Algebra

    Rational Expressions: I'll do my best to type the following correctly: x-5+ 14/x+4 divided by x+3- 2/x+4 Simplify, Step by step Please!
  38. algebraic expressions 5th grade math

    larry and martha each planted the same number of carrots seeds in their gardens.After 4 weeks,larry had c carrots and martha had 6 more(write an expression)please help me solve,thank you
  39. Algebra CTU

    What is the unpaid balance of the business loan of 50,000 with interest rate of 9% compounded monthly for7 years, after the firt year of payments?
  40. math

    draw a rectangle 3 X 4 with 5/12 shaded
  41. calculate ratios

    Calculate the amount of drug in a ratio solution. How many micrograms are in 1ml of a 1:5000 solution?
  42. math help please

    Calculate the cost to the pharmacy as AWP less 13%. AWP $84.07 per 100 tablets and dispense 30 tablets
  43. Science

    An animal cell has all of the following structures except ________
  44. more math needed

    You have a 70% dextrose solution. How many grams of dextrose are in 400ml?
  45. Math help needed

    How many capsules , each containing 250mg, are needed to provide 50mg/kg/day for 10 days for a person weighing 176 lbs?
  46. Math help

    If a physician prescribed 4gm of aspirin to be taken daily, how many 5 grain tablets should the pt take each day?
  47. MATH HELP PLZ

    A physician orders 750mg of chloramphenicol to be added to a 100ml bag of NS. If the drup is reconstituted to 1gm/10ml, how many mills will be added to NS?
  48. MATH HELP

    In what proportion should 95% alcohol be mixed with 30% alcohol to make 70% alcohol?
  49. Math HELP!!

    How many mls of a syrup containing 85% of sucrose should be mixed with 150ml of a 60%sucrose syrup to make a syrup containing 80% sucrose?
  50. pharmacy calculations

    f an injectable contains 20% of mannitol, how many mls of the injection should be administered to provide 100gm of mannitol?
  51. pharmacy calculations

    If 500gm of dextrose are dissolved in 600ml of water, with the final volume being 1000ml, what is the percentage strength of the dextrose in the solution?
  52. math

    The IV dose of mannitol is 1.5g/kg, administered as a 15% solution. How many mls of the solution should be administered to a 150lb patient?
  53. Math

    If an injectable contains 20% of mannitol, how many mls of the injection should be administered to provide 100gm of mannitol?
  54. math

    Prochlorperazine is available in 10ml multiple dose vial. Eash ml contains 5mg. How many 2mg doses can be taken from this vial?
  55. math

    If an albuterol inhaler contains 20mg of albuterol, how many inhalation doses can be delivered if each dose contains 90mcg?
  56. math

    If an injectable drug contains 25mcg/0.5ml, how many mls will be required to provide a patient with a dose of 0.25mg?
  57. physics

    A ball rolls up a ramp and then back down again. The ramp is oriented so that the ball is rolling to the right as it rolls up the ramp. Assume that positive v and a vectors point to the right. Which statement is true about the ball's horizontal
  58. physics

    A ball rolls up a ramp and then back down again. The ramp is oriented so that the ball is rolling to the right as it rolls up the ramp. Assume that positive v and a vectors point to the right. Which statement is true about the ball's horizontal
  59. Statistics

    There are 200 students in a sample. How many of these students will have scores that fall under the score of 41? Mean is 45, standard dev. is 4.
  60. College Statistics

    A random sample of greeting cards is a mean value of $2.55 and a standard deviation of $0.44 So construct a 95% confidence interval estimate of the mean value of all cards in the store's inventory. So if the 2500 cards in the inventory then how are the
  61. calculus

    if F(x)=f(xf(xf(x))), where f(1)=2, f(2)=3, f'(1)=4, f'(2)=5, and f'(3)=6, find F'(1).
  62. calculus

    if F(x)=f(xf(xf(x))), where f(1)=2, f(2)=3, f'(1)=4, f'(2)=5, and f'(3)=6, find F'(1).
  63. calculus

    find the derivative of y=cos pix/sinpix+cospix
  64. calculus

    find the derivative of (x^2+1) 3rd root of x^2+2
  65. calculus

    find an equation of the tangent line to the curve at y=2x^3+5x, (-1, 3)
  66. calculus

    f(x)=X^3, f(a+h)-f(a)/h please help im so lost thanks
  67. electric power tools

    what is the purpose of a diode in a cordless drill or power screwdriver?
  68. physics

    The density of gold is 19.3 x 10^3 kg/m^3. What buoyant force does a .6 kg gold crown experience when it is immersed in water?
  69. PSYCHOLOGY

    Provide an example of ow one domain of development impacts the other two
  70. Psychology

    Describe why it is important to consider each domain in the study of adult development
  71. math

    Use each of the numbers 1 through 9 once in any order that you want to make and expression 2011
  72. physics

    if |A|=2, |B| =4, |C| =5, find the vector sum a+b+c in ordered pair notation, also find the angle theta
  73. physics

    if |A|=2, |B| =4, |C| =5, find the vector sum a+b+c in ordered pair notation, also find the angle theta
  74. physics

    a .140 kg baseball is dropped from rest from a height of 2.2m above the ground. it rebounds to a height of 1.6 m. what change in the balls momentum occurs when the ball hits the ground
  75. physics

    a .330 kg volleyball is dropped from rest. it takes it 1.30 s to reach the ground. what is the magnitude of its momentum just before it hits the ground
  76. physics

    a .140 kg baseball is dropped from rest from a height of 2.2m above the ground. it rebounds to a height of 1.6 m. what change in the balls momentum occurs when the ball hits the ground?
  77. physics

    a device has a 100g wooden shuttle that is pulled along a square woooden rail by an elastic band. the shuttle is released when the elastic band has 9.0 N tension at a 45 degree angle. what is the magnitude of the initial acceleration of the shuttle?
  78. math

    how do you find the equation line of these ordered pairs (1/6, -1/3) and (5/6, 5)?
  79. please help with physics

    a gun tilted upward at 30 degrees fires a bullet with a speed of 215 m/s. what is the bullets velocity parallel to the ground
  80. physics help

    a gun tilted upward at 30 degrees fires a bullet with a speed of 215 m/s. what is the bullets velocity parallel to the ground
  81. physics

    a gun tilted upward at 30 degrees fires a bullet with a speed of 215 m/s. what is the bullets velocity parallel to the ground?
  82. physics

    a spider crawls 4.7 m at an angle of 24 degrees north of east. another spider crawls 5.2m at an angle of 24 degrees east of north. what is the eastward displacement of the spiders?
  83. Forensic psychology

    What are the differences between the forensic treatment evaluation and the clinical treatment evaluation in non-forensic settings?
  84. Finance

    What is the monthly payment of $200,000 is financed for 15 years at 7.5%?
  85. physics

    A net force of 295 N accelerates a bike and rider at 2.60 m/s^2. What is the mass of the bike and rider together?
  86. public health issue

    Scenario In a rural area of Guatemala, three groups of villages received different public health interventions. The Minister of Health wants to know which of these interventions was the most cost-effective for averting death among children who are 3 years
  87. algreba

    The perimeter of a rectangle is 56 inches. The length exceeds the width by 24 inches. What is the length and what is the width?
  88. management

    Explain at least three ethical issues within todays business environment that affect your community and organization
  89. HCR 210

    explain how the general duties for handling patient records differ between a records administration and a record technician
  90. Finance

    The Landis Corporation had 2008 sales of $100 million. The balance sheet items that vary directly with sales and the profit margin are as follows:
  91. Physics

    What is the value of a if the object is moving with constant velocity? What does this equation reduce to in such a case?
  92. chemistry

    what is AL(MnO4)3
  93. health

    what is the system that moves the body and maintains its form
  94. social studies

    which american president was also a king
  95. World History

    Name the natural berriers that protected egypt
  96. maths

    simultaneous equations x + 2y = 4 3x - 4y = 7 x=3 and y = 1/2 i need to explain how i got this answer and do not know how to do that? i am confused about how you got this answer what working out is it the object in "elimination" is to get the coefficients
  97. math

    how do you solve this problem? 1/2x - 3 = -1 Let me make sure I understand the problem. Do you mean (1/2)x - 3 = -1, i.e. .5x-3 = -1?, or 1/(2x) - 3 = -1 I'm going to suppose you mean the first one. There is one very simple, but very important postulate of
  98. physics

    Use the fact that the speed of light in a vacuum is about 3.00x1000 m/s to determine how many kilometers a pulse from a laser beam travels in exactly 1 h How many seconds are there in 1 hour if there are 60min/hr and 60sec/min? Then 1hr = 60min/hr x
  99. Reading

    My son is going into the 2nd grade. I am having trouble getting him to read. He tells me he cant do it. The school is wanting to put him in special Ed. How can i help my son and his reading? Before a child is assigned to special education, he must be