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August 31, 2014

Posts by Kevin


Total # Posts: 938

college physics
A wet towel of mass 4 kg is hung in the center of a 6 m clothesline, so that the line makes an angle 10o with the horizontal. The tension in the line is closest to... 50N, 40N, 100N, 200N, or 10N
November 3, 2012

Algebra
i'm a 2 digit number. the sum of my digit Is 12.my tens digit is 4 more than my ones digit. what numberam i ?
November 2, 2012

Math problem
Mrs. Jones owns 4/7 of the stock in a small business and Mrs.Brown owns the rest. Mrs. smith agrees to give $21,000 in exchange for 1/3 of the stock. The $21,000is to be divided between Mrs. jones and Mrs. Brown so that all three will now have equal share of stock. How much of...
October 29, 2012

Algebra
If (8c-7d)/(d)=2, find the value of (5c-6d)/(2c)
October 29, 2012

Accounting
Inventory as of Nov. 30th, 2010, consists of 20 bikes costing $550 each. Balance Sheet: Nov. 30th 2010. Cash-9150 Debit Accounts Receivable-12300 Debit Inventory-11000 Debit Supplies-900 Debit Office Equipment-18000 Debit Accumulated Depreciation, Office Equipment- 3000 Credit...
October 25, 2012

science
These are the 3 questions that will help me study for my test. i need help understanding each of these thankyou :) Distinguish between microevolution and macroevolution. Explain how forest organisms (producers and consumers) separated by a highway could evolve into different ...
October 22, 2012

Statistics
In Professor White’s statistics course the correlation between the students’ total scores before the final examination and their final examination scores is r = 0.9. The pre-exam totals for all students in the course have mean 275 and standard deviation 50. The final...
October 21, 2012

Math
Just wondering what did you do in this log((7x-3)(25)/(x+3) = 2 to get 25(7x - 3)/(x+3) = 10^2 = 100?
October 20, 2012

Math
solve log(7x-3)+2log(5)=2+log(x+3) I've attempted to do this question and I ended up with log(7-3)+log(5^2)-log(x+3)=2 but I don't what to do next or whether I did something wrong.
October 20, 2012

Chemistry
A spaceship from another planet travels at a speed of 4.27 googs/mulm. There are 256 googs in a meter and 8000 mulum in one hour. What is the spaceship speed in meters per second?
October 16, 2012

Help please!! History
the crusades
October 16, 2012

chemistry
In a 100g sample of copper, 69 g were Cu-63 while 31g were Cu-65. Find the average atomic mass.
October 14, 2012

math
How did u get 9 and u didnt answer my question
October 13, 2012

Math
(x-3) is a factor of x^3+ax^2+bx-3 but when divided by x+2 the remainder is 15 Solve for A and B I know that A is 1 and B is -11, but I don't understand how to solve it
October 11, 2012

algebra
simplify the expression. Justify each step. (m+4.5)-0.5
October 8, 2012

Math
no,you are incorrect the correct answer is 7and a half more minutes
October 8, 2012

chemistry
A 2.33-g sample of a mixture of CaCl2 and Ca(NO3)2 is treated with excess AgNO3(aq). The precipitate is filtered off, dried and weighed. The dried precipitate weighs 3.9 g. What is the percentage by mass of CaCl2 in the original mixture?
October 7, 2012

assessing development cognitive language observat
foster language
September 28, 2012

math
2x-4+x-5 Please explain
September 23, 2012

math
2x-4+x-5 Please explain
September 23, 2012

English
I am diagramming the sentence: It was excellent from beginning to end. I know the subject is "It", verb "was", subject complement is "excellent" and, I think "from beginning to end" is a prepositional phrase. Am I right or please corrent...
September 19, 2012

algebra
the office manager of a small office ordered 120 packs of printer paper.based on average daily use, she knows that the paper will last about 40 days. what graph represents this situation? how many packs of printer paper should the manager expect to have after 10 days? paper [ ...
September 17, 2012

algebra
on number 3 y=kx so would i divide y by x and if so I get 1.57, 1.62, 1.66, and 1.7..Is this right?
September 17, 2012

algebra
I have a few questions that I don't understand hope someone can help. 1)write an equation of th line, in point slope form, that passes through the two given points. (-17,8),(3,-2) I figured (y-8)=-2(x+17) not sure 2) the graph of g(x) is f(x) vertically compressed by a ...
September 17, 2012

chemistry
In part B of my question, I was asked calculate the number of atoms in 0.615 mol of 13C (mass number of this Carbon is 13). I received the correct answer of 3.70E23 atoms. However, I do not know how to do Part C of my question, which asks "Based on your answer in Part B, ...
September 16, 2012

Physics
Which of the following best describes kinematics? a) Kinematics is a part of mechanics that involves the description of motion. b) Kinematics is the branch of physics that deals with the motion of objects and the action of forces on the objects. c)Kinematics is the study of ...
September 14, 2012

math
my daughter is working on 5n + 2n - (3-10N) can someone walk me thru how to solve problems like this I have not been in school in over 20yrs. I think you have to work () first? but really do not know HELP please thank you
September 13, 2012

math
Ms.sue may I just know the curtisy of why you help students on this website for years are you a retired algebra teacher
September 13, 2012

math
Ms.sue may I just know the curtisy of why you help students on this website for years are you a retired algebra teacher
September 12, 2012

math
Ms.sue may I just know the curtisy of why you help students on this website for years are you a retired algebra teacher
September 12, 2012

algebra
what is the equation of the given line in standard form. use integer coefficients y=-1.7x+8.5 Please explain not understanding
September 10, 2012

algebra
Thank you for the help
September 10, 2012

algebra
what is an equation of the line in point slope form that passes through the given point and has a given slope.(8,-8);slope 3. caon someone explain
September 10, 2012

algebra
Thanks for the help
September 10, 2012

algebra
write an equation of the line in point slope form that passes through the two given points.(-2,15),(9,-18).Please explain
September 10, 2012

physics
i.imgur. com/cqwun. png
September 9, 2012

physics
i.imgur . com/jXIYL. png is it 20 and 10??
September 9, 2012

physics
what is the displacement of the ball? i.imgur. com/8ljWh . png i don't know calculus!
September 9, 2012

Geometry
SEX WITH ME AND I TELL YOU THE ANSWER
September 8, 2012

algebra
Solve the equation check for extraneous solutions 9[9-8x]=2x+3 please explain
September 8, 2012

algebra
Evaluate the expression for the given value of the variable(s) [-4b-8]+[-1-b^2]+2b^3; b=-2
September 8, 2012

algebra
I got that but what I don't understand is the possible answers are y=9/10x+9/10;slope;9/10;y-intercept;9/10 y=9/10x-9/10;slope;9/10;y-intercept;9/10 y=-9/10x+9/10;slope;9/10;y-intercept;9/10 y=9/10x-9/10;slope;9/10;y-intercept;-9/10
September 8, 2012

algebra
-9x+10y=-9 write the equation in slope-intercept form, what are the slope and y-intercept. I have tried to figure this out but cannot come up with correct answer please help
September 8, 2012

english
The statement below represents which genre from the early american and colonial period. I want to explain origins of the natural world and its processes. the poetry of anne bradstreet the oral tradition of native americans the journals of william bradford the essay of thomas ...
September 7, 2012

Math
Rules for counting significant figures are summarized below. Zeros within a number are always significant. Both 4308 and 40.05 contain four significant figures. Zeros that do nothing but set the decimal point are not significant. Thus, 470,000 has two significant figures. ...
September 7, 2012

Physics
What length of #22 B&S gauge copper wire is needed to make a resistance of 500 ohms? This is what I came up with but don't think it is correct. looked up diameter for #22 gauge wire = .643 mm and converted to m 6.46 * 10^-4. Used Eq. A = (pi)(d^2)/4 => A = (pi)(6.43 * ...
September 7, 2012

Physics
Suppose you are asked to determine the perimeter of a seven-sided irregular figure. You make the following measurements: Side 1 = 3.2 m Side 2 = 4.8 m Side 3 = 2.000 m Side 4 = 8.94 m Side 5 = 11 m Side 6 = 7.566 m Side 7 = 4.0 m How many significant figures should there be in...
September 6, 2012

Physics
Suppose that an environmental study determines that a town produces approximately 2,000 lb of trash each day. The study group decides to convert their findings to SI units, using the conversion 1 lb = 0.4536 kg. They report that the town produces 907.2 kg of trash each day. ...
September 6, 2012

physics
thanks for the assistance, but apparently none of the answers are correct according to my homework checker.
September 4, 2012

physics
In the problem, please assume the free-fall acceleration g = 9.80 m/s2 unless a more precise value is given in the problem statement. Ignore air resistance. A stone is thrown vertically downward from the roof of a building. It passes a window 15.0 m below the roof with a speed...
September 4, 2012

physics
(a) What was the initial velocity of the stone? (b) How tall is the building? sorry I added the question to another post, but here it is. Thanks :)
September 4, 2012

physics
In the problem, please assume the free-fall acceleration g = 9.80 m/s2 unless a more precise value is given in the problem statement. Ignore air resistance. A stone is thrown vertically downward from the roof of a building. It passes a window 15.0 m below the roof with a ...
September 4, 2012

algebra
evaluate the expression for variables -(4h-1)/1+h;h=2 /-4b-8/+/-1-b^2/+2b^3;b=-2 9c-6d+4c-3d 9/9-8x=2x+3 If anyone could please help me, these I have not been able to figure out. Any help is appreciated. Thank you
September 3, 2012

algebra
-8<=2x-4<2 solve the compound inequality can someone please expplain this?
September 3, 2012

algebra
to which set of numbers does the number belong 1.) 5/4 irrational integers rational natural 2.)graph the number on a number line 2/5 I don't know how to do these ones if someone could help and explain
September 3, 2012

algebra
it's asking to identify a pattern and find the next number in the pattern. 1.) 31,24,17,10 4 -3 -2 3 2.) 0,4,2,10,50 450 250 5 50 If someone could help would appreciate but would like an explanation on how you get it so I can learn. Thanks ahead.
September 3, 2012

Physics
Can someone help me with this conversion question? Suppose you are told that 15 quarts (qt) = 14.2 liters (L). What is the conversion factor you would use to convert from quarts to liters? What is the conversion factor you would you use to convert liters to quarts? 1) quarts ...
September 2, 2012

poetry
Line from "To Her Father With Some Versus", Yet for part payment take this simple mite possible answers 1)bedbug 2)a coin of little value ** 3)physical strength 4)possibility How many couplets are in this poem? 1)five 2)six 3)seven 4)fourteen*** Which of the ...
August 26, 2012

math
solve equation then check for extraneous solution please someone explain this to me. 6/6-4x/=8+4 then one that is solve the inequality s/x+3/4<2 I don't understand these problems and then it says to graph
August 26, 2012

math
absolute value equation 2/3x-5/-8=8 Can someone help do not understand
August 26, 2012

Math
If the side of am inverted square pyramid has a length of 75m, what is the lengths of a diagonal?
August 24, 2012

algebra
Which set of numbers does -55 belon? natural whole integers irrational i'm not sure but leaning towards natural or whole. Can someone please help?
August 23, 2012

business
Which one of the following tools includes the specific tasks and duties to be performed by an employee? a. job analysis b. job specification c. job description d. skills inventory my answer is B is it correct ??
July 10, 2012

chemistry
When a 3.90-g sample of solid ammonium nitrate dissolves in 60.0 g of water in a coffee-cup calorimeter, the temperature drops from 24.5°C to 19.3°C. Calculate DH (in kJ/mol NH4NO3) for the solution process NH4NO3(s) ---> NH4+(aq) + NO3-(aq) Assume that the specific...
July 4, 2012

Spanish
How can I tell how to change the ending on the words? would number 2 be intersen?
July 3, 2012

Spanish
ESTRUCTURA | 13.1 The subjunctive with verbs of emotion Emociones Completa cada oración con la forma correcta del verbo apropiado de la lista. Usa cada palabra sólo una vez The words in () are my guess. I need help with clarification and spelling changes. Word ...
July 3, 2012

Spanish
1. haber 2.va 3.resolver, Im not sure about the rest :(
July 3, 2012

Spanish
13.2 The subjunctive with doubt, disbelief, and denial Completar Completa cada oración con la forma correcta del verbo apropiado de la lista. word bank haber ir llegar querer resolver ser 1. No creo que el gobierno el problema de la contaminación rá...
July 3, 2012

spanish
I don't know where to begin and I have tried to change the endings of the words and it still comes up wrong
July 3, 2012

spanish
Oraciones Transforma los elementos en oraciones usando el subjuntivo o el indicativo. Modelo algunos animales/ ir a morir/ a menos que / haber / leyes para protegerlos Algunos animales van a morir a menos que haya leyes para protegerlos. la ciudad / ir a estar cada vez m&...
July 3, 2012

Accounting 2
Journalizing liability transaction. The following transactions of denver pharmacies occurred during 2011 and 2012. Louis Welch is general manager of United Tanning Salons. During 2012, Welch worked for the company all year at a $6,200 monthly salary. He also earned a year-end ...
June 23, 2012

MATH 7
0.25 and the choices they gave me was A. 2 digits B. 4 digits C. 1 digits D. 5 digits
June 17, 2012

MATH 7
Estimate the number of digits in your answer. 2.00 divide 8
June 17, 2012

Physics
A block with mass 0.55 kg on a frictionless surface is attached to a spring with spring constant 43 N/m. The block is pulled from the equilibrium position and released. What is the period of the system?
June 16, 2012

Physics HELP
how do u conver 334 (m/s) to acoustic independence unit? kg(m^2s)
June 14, 2012

Alegbra
(4/x-2)-(7/x^2-4)=1
June 14, 2012

Algebra
solve:2y^2+8y-24=0
June 14, 2012

Chemistry PLEASE HELP!
• A compound is known to contain only C, H, and N. • On combustion of a sample of 12.5 mg, 22.3 mg of CO2 and 15.2 mg of H2O were produced. •Use this data to find the empirical formula for the compound. (Please show working out)
June 12, 2012

Chemistry Please HELP!
calculate the mass of each product formed if 10.0 g of the first reactant is reacted with 10.0 g of the second reactant: NCl3 + 3 H2O → 3 HClO + NH3 (Please show me full working out)
June 11, 2012

Physics please help
Geosynchronous satellites orbit the Earth at an altitude of about 3.58×10^7 m. Given that the Earth's radius is 6.38×10^6 m and its mass is 5.97×10^24 kg, what is the magnitude of the gravitational acceleration at the altitude of one of these satellites? ...
June 9, 2012

Physics-PLEASE HELP ASAP
I don't know how to substitute these equations from my question please help!
June 7, 2012

Physics-PLEASE HELP ASAP
A tungsten target is struck by electrons that have been accelerated from rest through a 38.9-kV potential difference. Find the shortest wavelength of the radiation emitted.
June 7, 2012

Algebra
Bob received 6 points for each question he answered correctly on Part 1 of a test and 4 points for each question he answered correctly on Part 2. If he answered 33 questions correctly and received a total of 168 points, how many questions did he answer correctly on Part 1?
June 1, 2012

algebra
factor using Ac Method 9x^2-6x-8
May 28, 2012

geometry
Thanks
May 25, 2012

geometry
Find the similarity ratio of a cube with a volume 512m^3 to a cube with volume 3,375m^3
May 25, 2012

Geometry (Mathematics)
The length of a rectangle is 15 m longer tan it's width. The perimeter of the rectangle is 74 cm. Find the length and width.
May 22, 2012

math
Find S(sub 73) for the arithmetic series 4 + 7 +10....
May 22, 2012

Math
A ferry boat holds 800 people. There are 260 people already on the boat. The owner of the boat wants to load several tour groups on. The tour groups come in sizes of 40 people or 50 people. The owner would like an equal number of each size of tour group on the boat. What is ...
May 21, 2012

earth
About how fast will it be traveling on average? Assume that its trajectory is close to a straight line. Give your answer in {\rm AU/yr} and in {\rm km/hr}.
May 1, 2012

grammar
can you check these for me ? circle the action word that tells more. 1. Lee grabbed a bucket of paint options: got or grabbed 2.The paint slipped . options: slipped or fell 3. It dripped on Lee's coat, options: went or dripped 4. It sprayed on Lee's pants. options: got...
April 19, 2012

grammar punctuation
#2 error in punctuation or capitaliztion. Perry asked if anyone knew the words to "Locked Out." Garrison yelled from the other room, "I loved that movie! "In fact," he continued, "I've seen it three times." (my choice) "Wasn't ...
April 18, 2012

grammar punctuation
Fine the error in punctuation or capitalization 1. "After you've rested," Frank said, "please help me move these boxes." "Can we wait until later?" asked Emily. "I have a lot of homework." "It won't take very long." ...
April 18, 2012

BA345 Patents, Copyrights, Trademrks
The day after the internet went on strike, the Justice Department indicted 7 individuals and two companies who were a part of Megaupload.c--. Research MegaUpload.c-- and the copyright infringement charges. Do you think MegaUpload is guilty of copyright infringement? Why or Why...
April 17, 2012

gramer correct sentence
"Did you know that Chicago sits on Lake Michugan?" asked Brenda.(think so) "Did you know that Chicago sits on Lake Michigan? Asked Brenda. (don't think so) "Did you know that Chicago sits on Lake Michigan? Asked Brenda". (don't think so) "...
April 17, 2012

psychology
humanistic therapy acknowledge unconscious forces and --- as a source of personal difficulties environment negative thoughts genetics psychosis please help
April 16, 2012

psuchology
Currently there are --- types of cognitive therapy in common practice. 2 4 6 cognitive therapy is rarely used today please help
April 16, 2012

area hexagon
Find the area of a regular hexagon with an apothem 10.4 yards long and a side 12 yards long. Please help
April 16, 2012

sector and diameter
Find the area of a sectorwith a central angle 0f 190degree and a diameter of 5.1cm. Can someone please help?
April 16, 2012

raiots and perimeter
ratio perimeter= 7/2 ratio of area= 49/4
April 16, 2012

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