Trina
Most popular questions and responses by Trina
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 MegaWatts.
asked on July 27, 2013 
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?
asked on July 26, 2013 
music 394
What is ''American'' music and what differentiates it from European or African Music
asked on March 26, 2017 
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 (
asked on July 26, 2013 
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
asked on January 29, 2013 
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
asked on July 26, 2013 
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.
asked on July 26, 2013 
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/
asked on December 8, 2012 
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.
asked on July 27, 2013 
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?
asked on October 21, 2015 
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.
asked on July 26, 2013 
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?
asked on July 26, 2013 
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.
asked on March 26, 2013 
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
asked on December 14, 2012 
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
asked on March 17, 2011 
Math
Myrna budgets 22% of her annual income for housing . It she budgets $400 per month for housing, what is her annual income
asked on November 11, 2013 
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
asked on December 14, 2012 
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?
asked on March 22, 2011 
Chemistry
How do you calculate the density of a rectangular solid, which has a mass of 25.71
asked on September 12, 2012 
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
asked on April 29, 2012 
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?
asked on June 22, 2009 
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
asked on October 23, 2007 
Forensic Psychologist
Identify and articulate the similarities and differences between the therapeutic and forensic roles for both assessment and treatment.
asked on October 9, 2016 
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/
asked on December 10, 2012 
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?
asked on March 13, 2012 
chemistry
In a buffer prelab, 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
asked on May 16, 2011 
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
asked on February 27, 2011 
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 nextgeneration
asked on June 20, 2010 
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?
asked on November 2, 2009 
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
asked on August 25, 2006 
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
asked on November 3, 2014 
Can someone please help me with balancing 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)
asked on December 14, 2012 
E.C.E
The Boolean search connector OR is used for which of the following purposes?
asked on March 15, 2012 
10th grade
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
asked on June 3, 2010 
mathematics
Draw a graph of the mirror line y=x, the function f:x 3x+2 and its inverse f`1 x x2/3, for the domain of x, 2
asked on September 7, 2009 
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 =
asked on February 15, 2008 
Algebra
When 345 is added to a number, the result is 987. Find the number?
asked on June 9, 2017 
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?
asked on September 18, 2014 
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.
asked on March 4, 2011 
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
asked on February 6, 2011 
12th grade
can anyone explain how to divide in algebra? I have this problem: (15x224+9)/(3x3) I am not looking for someone to give me the answer straight out I just need to know how to get there.
asked on December 15, 2010 
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.
asked on September 3, 2010 
high school
according to jean piaget, in what is all learning based?
asked on June 29, 2010 
college
How o Isolve by using the elimination method. 5x + 5y= 7 7x  2y= 17
asked on June 5, 2010 
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?
asked on September 7, 2009 
8th grade
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
asked on August 24, 2009 
Math
Write each of the following as a common fraction or mixed number. Write your answer in lowest term 15.35
asked on February 19, 2008 
Math
Please help me with these problems. Decimals and fractions Construction: an aframe 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
asked on February 19, 2008 
ECON
How do you calculate/formula the value of a firm? http://www.marketingprofs.com/ea/qst_question.asp?qstID=5984
asked on June 19, 2005 
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?
asked on February 4, 2016 
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/
asked on December 11, 2012 
Math
x2 + bx + c and ax2 + bx + c.
asked on November 4, 2012 
Math
x2 + bx + c and ax2 + bx + c.
asked on November 4, 2012 
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?
asked on November 1, 2012 
chemistry
explain inside a flashbulb are the 2 reactants necessary for a violent reaction that produce light yet they don't react..
asked on May 16, 2011 
health
The hospital inpatient record documents the care and treatment received by a patient admitted to the hospital. Where is the paperbased record stored while the patient is in the hospital? a.All patient records are stored in the health information
asked on February 6, 2011 
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 thirdparty payers for
asked on February 6, 2011 
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.
asked on September 5, 2010 
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(y2)/y+2. 3/y3/2y+4
asked on August 27, 2010 
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.
asked on August 9, 2010 
Spanish
What is the proper form? Nosotros (deber/estudiar)___ mucho esta semana. debemos/estudiamos or debemos/estudiar
asked on July 8, 2010 
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?
asked on January 29, 2010 
math
Look for compatible numbers to find the exact answer mentally 5x26x4
asked on January 29, 2010 
crimmnal justice
· Write a 700  1,050 word paper in which you compare and contrast the seven major ethical systems
asked on December 20, 2009 
Algebra
How to use (3+a+b)3 to a commutative law of multiplication to a equivalent equation
asked on June 9, 2017 
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
asked on October 30, 2016 
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
asked on October 18, 2016 
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
asked on October 9, 2016 
Forensic Psychologist
Articulate the potential ethical conflicts and discuss how those conflicts might be managed.
asked on October 9, 2016 
math  fraction
1/4 + 7/50 + 27/50 =
asked on October 22, 2015 
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???
asked on March 27, 2013 
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
asked on January 9, 2013 
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
asked on August 9, 2012 
social studies
From the point of view of an environmentalist, which is probably the most significant argument against offshore drilling for oil?
asked on January 28, 2011 
science
which of the following are involved in the clotting process.
asked on January 14, 2011 
Algebra
please help me solve 3xx+7=9+2x.
asked on September 30, 2010 
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
asked on September 4, 2010 
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
asked on August 9, 2010 
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?
asked on August 1, 2010 
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?
asked on August 1, 2010 
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
asked on June 3, 2010 
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
asked on December 30, 2009 
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
asked on February 20, 2008 
psychology
If Donna is highly creative? does she focus on one problem at a time or is she a convergent thinker
asked on February 10, 2008

Science
54
posted on September 12, 2017 
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 
Algebra
How to use (3+a+b)6 commutative law of multiplication to write an equivalent equation
posted on June 9, 2017 
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 
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 
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 
math
She works 2 hours each day
posted on December 11, 2014 
meadowcreek
I need. Help With. My. Homework
posted on February 27, 2014 
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 
Percentages
So you JUST multiply the 30% by the 2,400? Okay thank you!
posted on January 9, 2013 
Percentages
0.3 is 3/10 though, right?
posted on January 9, 2013 
Can someone please help me with balancing ASAP
Forget it i figured it out
posted on December 14, 2012 
Can someone please help me with balancing ASAP
For some reason its still not working
posted on December 14, 2012 
Can someone please help me with balancing ASAP
I have tried putting in diff answers but its not working
posted on December 14, 2012 
Math
The thing to remember here I think is PEMDAS that is Brackets are first then parenthesies then multiplycation from left to right then division if there was any from left to right and finally addition and the subtraction. I hope that helps you out some.
posted on December 3, 2010 
2nd grade
if you have two ones and double it (2+2) for your tens then you come up with 42.
posted on December 3, 2010