# vicki

Most popular questions and responses by vicki
1. ## science

If a kestrel eats a mouse that eats grass, the kestrel is a

2. ## more math needed

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

3. ## 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

4. ## 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?

5. ## 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).

6. ## 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

7. ## 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

8. ## 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

9. ## 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

10. ## 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

11. ## 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?

12. ## 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

13. ## 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!

14. ## Algebra

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

15. ## 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?

16. ## 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.

17. ## math

two cars 270 mi. apart enter an interstate highway traveling towards one another. one car travels at 65 mph and the other at 55 mph. when will they meet

18. ## 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?

19. ## 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.)

20. ## 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

21. ## pharmacy calculations

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

22. ## 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?

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

24. ## 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?

25. ## 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

26. ## 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

27. ## 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

28. ## Math

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

29. ## math

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

30. ## 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?

31. ## 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?

32. ## Algebra

x^4-4x^2-45=0

33. ## Algebra

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

34. ## Science

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

35. ## 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.

36. ## 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

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

38. ## Find the GCF of the monomials

3xy, 6xz, and 9yxz is  ___________________________

39. ## chemistry

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

40. ## electric power tools

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

41. ## math

how do you find the equation line of these ordered pairs (1/6, -1/3) and (5/6, 5)?

42. ## 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?

43. ## 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

44. ## Science

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

45. ## 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

46. ## Science

An animal cell has all of the following structures except ________

47. ## Math help

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

48. ## math

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

49. ## 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

50. ## calculus

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

51. ## Psychology

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

52. ## calculate ratios

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

53. ## 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

54. ## 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

55. ## 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

56. ## chemistry

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

57. ## 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

58. ## Algebra

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

59. ## Algebra

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

60. ## Algebra

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

61. ## Science

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

62. ## 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!

63. ## 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?

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

65. ## 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?

66. ## 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).

67. ## PSYCHOLOGY

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

68. ## math

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

69. ## 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?

70. ## Forensic psychology

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

71. ## 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?

72. ## management

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

73. ## 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:

74. ## 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?

75. ## chemistry

what is AL(MnO4)3

76. ## health

what is the system that moves the body and maintains its form

77. ## World History

Name the natural berriers that protected egypt

78. ## 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

79. ## Algebra

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

80. ## Algebra

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

81. ## Algebra

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

82. ## Algebra

(t^(1/2)+2)^2

83. ## Algebra

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

84. ## Algebra

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

85. ## 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?

86. ## 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?

87. ## 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

88. ## cis106

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

89. ## math

draw a rectangle 3 X 4 with 5/12 shaded

90. ## 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?

91. ## MATH HELP

In what proportion should 95% alcohol be mixed with 30% alcohol to make 70% alcohol?

92. ## calculus

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

93. ## calculus

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

95. ## physics

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

96. ## physics

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

97. ## 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?

98. ## Finance

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