# Trina

Popular questions and responses by Trina
1. ## Chemistry

The equation for photon energy, , is where = 6.626×10−34 (Planck's constant) and = 3.00×108 (the speed of light). What is the wavelength, , of a photon that has an energy of = 3.99×10−19 ? How do go about solving this? I multipled the constant w/

2. ## scince

During a rain storm, rain comes straight down with velocity Vi =-15 m/s and hits the roof of a car perpendicularly. The mass of the rain per second that strikes the roof is 0.060 kg every second. Assuming that the rain comes to rest upon strikingthe car (

3. ## science

On a hot summer day (30 degrees Celsius), a pesky little mosquito produced its warning sound near your ear. The sound is produced by the beating of its wings at a rate of about 600 wings beats per second. What is the frequency in Hertz of the sound wave?

4. ## Chemistry

Balance the following equation. (for a balanced eq. aA + bB → cC + dD, enter your answer as the integer abcd) MnO4−(aq) + SO32−(aq) + H+(aq) → Mn2+(aq) + SO42−(aq) + H2O(l) i got 2525 and its going in as incorrect Now you get to balance this

5. ## Geometry

Graph quadrilateral ABCD. Then determine the most precise name for each quadrilateral. 1. A (0, 5), B (–5, 0), C (0, –5), D (5, 0) (1 point) square kite rectangle 2. A (–4, 4), B (3, 4), C (5, 0), D (–2, 0) (1 point) square trapezoid parallelogram

6. ## general science

If a graph shows time on the horizontal axis and speed on the vertical axis, a stright horizontal line across the graph would indicate?

7. ## music 394

What is ''American'' music and what differentiates it from European or African Music

8. ## Math

Myrna budgets 22% of her annual income for housing . It she budgets \$400 per month for housing, what is her annual income

9. ## science

In a serious accident, nuclear power plants reactor vessel cracks and all of the cooling water drains out. Although nuclear fission stops, radioactive decay continues to heat the reactor's 2.5× 10 to the 5 power kg uranium core at rate of 120 Mega-Watts.

10. ## science

A motorcyclist is trying to leap across a canyon by driving horizontally of the cliff that is 70.0m high at 38.0m/s. Ignoring air resistance, use energy conservation to find the speed with which the cycle strikes the ground at a height of 35.0 on the other

11. ## science

A 15kg object is pushed to the right with a net force of 60N. If a 5kg object experiences the same acceleration, how much force is it being pushed with?

12. ## physical science

during a race a runner runs at a speed of 6 m/s. 2 seconds later she is running at a speed of 10 m/s. what is runners acceleration? show your work.

13. ## math

On a centimeter dot array, draw all possible rectangles with a perimeter of 16cm and sides whose lengths are whole centimeters. Label the lengths of two adjacent sides of each. Also the area of each rectangle. Compare the shapes of the rectangles with the

14. ## E.C.E

The Boolean search connector OR is used for which of the following purposes?

15. ## marketing

Please refer to the following advantages and disadvantages: Advantages Little capital outlay Some control of operations Risks are shared and limited Local knowledge Disadvantages/Potential problems Limited contact with customers No direct control of

16. ## math

Sara has gone to work for 60 days. On 39 of those days she arrived at work before 8:30A.M. On the rest of the days she arrived after 8:30A.M What is the experimental probability that she will arrive at work after 8:30A.M the next day she goes to work

17. ## english

1. What learning similarities and differences are apparent? 2. What is the important of knowing your learning strengths in addition to those of your classmates? 3. How may this knowledge be beneficial to collaborative work completed in an online learning

18. ## UNIVESITY OF PHOENIX

I AM DOING A FALLIACIE ASSIGMENT WHAT TYPE OF SENTENCE IS THIS. Letter to the editor: “Andrea Keene’s selective morality is once again showing through in her July 15 letter. This time she expresses her abhorrence of abortion. But how we see only what

19. ## Algebra

When 345 is added to a number, the result is 987. Find the number?

20. ## Algebra

How to use (3+a+b)3 to a commutative law of multiplication to a equivalent equation

21. ## Math

BOOKBINDING Two square sheets of cardboard used for making book covers differ in area by 44 inches. An edge of the larger square is 2 inches greater than an edge of the smaller square. Find the length of an edge of the smaller square. My answer: Let x be

22. ## Maths

A company is planning to manufacture and sell a new headphone set. After conducting extensive market surveys, the research department provide the following estimates: Marginal costs function: c^' (x)=RM(40+0.4x) where x is the quantity sold for the fixed

23. ## Forensic Psychologist

I need a speedy answer for this assignment please. I have posted several questions then I should be able to take over my responsibilities moving forward. Identify and articulate the similarities and differences between the therapeutic and forensic roles

24. ## Forensic Psychologist

Articulate the potential ethical conflicts and discuss how those conflicts might be managed.

25. ## Forensic Psychologist

Identify and articulate the similarities and differences between the therapeutic and forensic roles for both assessment and treatment.

26. ## Math

Use three methods to express each problem’s ratio. Simplify all fractions. 1. Anna has 12 black rabbits and 4 brown. What is the ratio of black rabbits to brown rabbits?

27. ## math - fraction

1/4 + 7/50 + 27/50 =

28. ## college algebra

a cake recipe calls for 1 2/4 cups of sugar. A caterere has 15 1/2 cups of sugar on hand. how many cakes can he make?

29. ## Sci207

In the United States, we are fortunate to have an abundant supply of food. However, this abundance is largely due to advances in agricultural technology, which have in turn created numerous concerns surrounding our food sources. Provide at least two modern

30. ## math

John as building a new fence and wants it to stand 81/2 feet above ground level to make sure its secure he must place it 23/4 feet into the ground.how long of a post should john buy?

31. ## science

One of Saturn's moons has an orbital distance of 1.87× 10m to the 8 power. The mean orbital period of this moon is approximately 23 hours. Use this information to estimate a mass for the planet Saturn.

32. ## scince

A man pushes a 50N box across a level floor at a constant speed of 2.0m/s for 10s. Find the average power output by a man.

33. ## science

One of Saturn's moons has an orbital distance of 1.87×100000000m. The mean orbital period of this moon is approximately 23hours. Use this information to estimate a mass for the planet Saturn.

34. ## Math

If f(x)-lnx,g(x)=e^8x, and h(x)=x^7, find the following: a. (f.g)(x). what is the domain of f.g? b.(g.f)(x). what is the domain of g.f? c. (f.h)(x). what is the domain of f.h? I have no clue how to do this. Somebody please help me?? please???

35. ## Percentages

Some doctors recommend that no more than 30% of a person's daily calories come from fats. Following this recommendation, if you eat 2,400 calories in a day, what is the maximum number that should come from fats? I can figure the answer out all by myself, I

Balance the following equation. (for a balanced eq. aA + bB → cC + dD, enter your answer as the integer abcd) MnO4−(aq) + SO32−(aq) + H+(aq) → Mn2+(aq) + SO42−(aq) + H2O(l)

37. ## CHEMISTRY HELP ASAP

Balance the following equation. (for a balanced eq. aA + bB → cC + dD, enter your answer as the integer abcd) MnO4−(aq) + SO32−(aq) + H+(aq) → Mn2+(aq) + SO42−(aq) + H2O(l) i got 2525 and its going in as incorrect Now you get to balance this

38. ## Chemistry

The equation for photon energy, , is where = 6.626×10−34 (Planck's constant) and = 3.00×108 (the speed of light). What is the wavelength, , of a photon that has an energy of = 3.99×10−19 ? How do go about solving this? I multipled the constant w/

39. ## Chemistry

The equation for photon energy, , is where = 6.626×10−34 (Planck's constant) and = 3.00×108 (the speed of light). What is the wavelength, , of a photon that has an energy of = 3.99×10−19 ? How do go about solving this? I multipled the constant w/

40. ## Math

x2 + bx + c and ax2 + bx + c.

41. ## Math

x2 + bx + c and ax2 + bx + c.

42. ## Chemistry Class

What is the molality of a solution made by adding 0.145 g of sodium acetate to 119 ml water? How do I find molality?

43. ## Chemistry

How do you calculate the density of a rectangular solid, which has a mass of 25.71

44. ## Math

\$15,000 in the bank at 3% interest, how much would you have in the bank after one year if the interest were compounded quarterly

45. ## statistics

Lorraine was in a hurry when she computed a confidence interval for . Because was not known, she used a Student's t distribution. However, she accidentally used degrees of freedom n + 1 instead of n - 1. v Will her confidence interval be longer or shorter

46. ## Chemistry 1110

If 3 L of hydrogen and 1.5 L of oxygen at STP react to yield water how many moles of water are formed? What gas volume does the water have at a temperature of 100degrees C and 1 atm pressure?

47. ## chemistry

explain inside a flashbulb are the 2 reactants necessary for a violent reaction that produce light yet they don't react..

48. ## chemistry

In a buffer pre-lab, we were asked to complete a table for 10 test tubes. In tube 1, you had 0.20 M of acetic acid only and were asked to find the pH. I think the answer is 2.72 (using a ICE table). In tube 2, you have 90 mL of Acetic Acid and 10 mL of

49. ## Geomatry

John’s backyard is shaped like a rectangle as shown below. The entire yard is grass, except for a 60 foot by 30 foot rectangular swimming pool. NA What is the area of the yard that is grass?

50. ## Physical science

What is the mass in kg of a cone made of brass that has a base radius of 25 cm and a height of 50 cm.

51. ## health

The hospital inpatient record documents the care and treatment received by a patient admitted to the hospital. Where is the paper-based record stored while the patient is in the hospital? a.All patient records are stored in the health information

52. ## health

The primary purpose of the patient record is to provide continuity of care, which means. a. documenting services so others have a source from which to base care. b.evaluating the quality of patient care. c.providing information to third-party payers for

53. ## health

Although hospital inpatient records have traditionally served as the documentation source and business record for patient care information. a.all patient records contain similar content and format features. b.alternate care facility records serve as the

54. ## social studies

From the point of view of an environmentalist, which is probably the most significant argument against offshore drilling for oil?

55. ## science

which of the following are involved in the clotting process.

can anyone explain how to divide in algebra? I have this problem: (15x2-24+9)/(3x-3) I am not looking for someone to give me the answer straight out I just need to know how to get there.

58. ## algebra

The third power of sqrt of 5b^9. Can someone point out the steps for solving this problem. Thanks for your help in advance.

59. ## algebra

Can someone show me how to use the quadratic formula to solve this problem.This is for extra credit.I don't uderstand how to do this, so can someone point out the steps so I can be able to do the other five problem like this one. Thanks again for your

60. ## algebra

Use the discriminant to find out whether this quadratic polynomial can be factored. Factor the polynomial if it is not prime. This polnomial is prime, so I cannot factor it. I just need help with the discriminant part. Thaks in advance for your help.

61. ## algebra homework

I am having some problem with solving a problem that the teacher gave to us. I ahving been working on it, but I just can't seem to get it. I keep getting the answer 2(y-2)/y+2. 3/y-3/2y+4

62. ## statistics

A data set consists of a set of numerical values. Which, if any, of the following statements could be correct? a. There is no mode. b. There are two modes. c. There are three modes.

63. ## statistic

3. Indicate whether the given statement could apply to a data set consisting of 1,000 values that are all different. a. The 29th percentile is greater than the 30th percentile. b. The median is greater than the first quartile. c. The third quartile is

64. ## statistic

The first class in a relative frequency table is 50–59 and the corresponding relative frequency is 0.2. What does the 0.2 value indicate?

65. ## HCS438

The first class in a relative frequency table is 50–59 and the corresponding relative frequency is 0.2. What does the 0.2 value indicate?

66. ## Spanish

What is the proper form? Nosotros (deber/estudiar)___ mucho esta semana. debemos/estudiamos or debemos/estudiar

67. ## high school

according to jean piaget, in what is all learning based?

68. ## Acc 230

The following is an excerpt from Lucent Technologies’ Management’s Discussion and Analysis of Financial Condition and Results of Operations: Executive Summary We design and deliver the systems, software and services that drive next-generation

69. ## college

How o Isolve by using the elimination method. 5x + 5y= -7 7x - 2y= 17

Graph quadrilateral ABCD. Then determine the most precise name for each quadrilateral. 1. A (0, 5), B (–5, 0), C (0, –5), D (5, 0) (1 point) square kite rectangle 2. A (–4, 4), B (3, 4), C (5, 0), D (–2, 0) (1 point) square trapezoid parallelogram

71. ## math

can someone let me know if this is the correct answer for this problem.. (3+8)+2=(8+3)+2- would this problem be consired Associatve?

72. ## math

Look for compatible numbers to find the exact answer mentally 5x26x4

73. ## crimmnal justice

· Write a 700 - 1,050 word paper in which you compare and contrast the seven major ethical systems

74. ## Math (Dr. Russ)

Ok thanks i understand all of that but how did they come up with the value 4 in between 0 and 8?

75. ## mathematics

Draw a graph of the mirror line y=x, the function f:x 3x+2 and its inverse f`1 x x-2/3, for the domain of x, -2

You complete a project for your social studies class. There are 3 parts to the project, worth a total of 100 points. You get 50 out of 50 points on part A, and 23 out of 25 points on part C. The total score you received is 93 out of 100. How many points

77. ## math 209

Area of a sail. The area in square meters for a triangle is given by A(x)=x^2 +5x +6. a.) Find A(5) b) if the height of the sail is x+3 meters, then what is the length of the base of the sail when area is x^2 +5x+6m^2?

78. ## Math

Please help The following table gives the free throws attempted (FTA) and the free throws made (FTM) for the top five players in the NBA for a recent season. Calculate the free throw percentage for each player by writing the FTM over the FTA and converting

79. ## Math

Write each of the following as a common fraction or mixed number. Write your answer in lowest term 15.35

80. ## Math

Please help me with these problems. Decimals and fractions Construction: an a-frame cabin has a triangular front with a base of 30 ft and a height of 20 ft. If the front is to be glass that cost \$3 per square foot, what will the glass cost? The distance

81. ## Math

Please double check me. The last problem I couldn't figure out. Thanks 18. 13/18 + 11/18 = 24/18= 4/3 38. 9/11 – 3/11 + 7/11 = 13/11=2 1/11 44. 7/1 + 12/1 + 21/1= 40/1=40 50. 3/8 + 3/8 + 3/8 = 9/8 = 1 1/8 12, 20, and 35 = 7*5*3*2*2= 420 13/15 – 11/20 =

82. ## psychology

If Donna is highly creative? does she focus on one problem at a time or is she a convergent thinker

83. ## math

The diameter of the Earth is approximately 7920 miles. Given that the circumference of a circle is _ times its diameter, which statemnt best describles the length of a trip from Washington to Madagascar that is approximately 8600 miles long? Your question

84. ## ECON

How do you calculate/formula the value of a firm? http://www.marketingprofs.com/ea/qst_question.asp?qstID=5984

1. ## Science

A charge q1=7.00 x 10^-6 is placed 0.300m from a second charge q2=-5x10^-6 C. Find the magnitude the force between the two charges.

posted on April 18, 2020
2. ## Science

54

posted on September 12, 2017
3. ## computer literacy

1 (d) 2 (b) 3 (d) 4(a) 5(c) 6(d) 7(d) 8(a) 9(c) 10(a) these are correct ans

posted on July 23, 2017
4. ## Algebra

How to use (3+a+b)6 commutative law of multiplication to write an equivalent equation

posted on June 9, 2017
5. ## Forensic Psychology

I posted this information to obtain help with a solid thesis and I will go from there. Thanks

posted on October 9, 2016
6. ## Forensic Psychologist

Articulate the potential ethical conflicts and discuss how those conflicts might be managed. Using multiple sources, defend your thesis on how and why therapeutic and forensic roles should or should not be reconciled. Be sure to address the issues of dual

posted on October 9, 2016
7. ## Forensic Psychologist

I am looking for a solid thesis statement Identify and articulate the similarities and differences between the therapeutic and forensic roles for both assessment and treatment. Articulate the potential ethical conflicts and discuss how those conflicts

posted on October 9, 2016
8. ## math

She works 2 hours each day

posted on December 11, 2014

I need. Help With. My. Homework

posted on February 27, 2014
10. ## Percentages

So I tried multiplying 0.3 because i later remembered that 10x10=100 and 3x10=30% so I multiplied and my answer was 720. Is this correct?

posted on January 9, 2013
11. ## Percentages

So you JUST multiply the 30% by the 2,400? Okay thank you!

posted on January 9, 2013
12. ## Percentages

0.3 is 3/10 though, right?

posted on January 9, 2013

Forget it i figured it out

posted on December 14, 2012

For some reason its still not working

posted on December 14, 2012