Tuesday
September 16, 2014

Posts by Jenny


Total # Posts: 1,217

chemistry
how many grams of HNO3 can be produced if 225 grams of NO2 is mixed with 55.2 g of H2O? 3NO2 + H2O=2HNO3 + NO
January 24, 2010

11th grade
I need help on how to factor a polynomial by grouping
January 18, 2010

Physics
15
December 31, 2009

calculus
Evaluate the indefinite integral: ((4/x^5)+(4/7x))dx
December 13, 2009

calculus
Evaluate the indefinite integral: (8e^x)dx
December 13, 2009

Math-Statistics
Suppose you want to test the claim that mean is not equal 3.5. Given a sample size of n = 45 and a level of significance of a = 0.10, when should you reject H0 ? A) Reject H0 if the standardized test statistic is greater than 1.96 or less than -1.96 B) Reject H0 if the ...
December 12, 2009

Problem Solving-Division
How can you check an answer of a quotient with a remainder? Use quotient, dividend, and divisor in your answer.
December 10, 2009

World* Geography
Thank you!
November 24, 2009

Wolrd Geography
Imagine this situation: Country A invades and conquers Country B. The resulting acculturation has negative effects. Country B's economy undergoes a dramatic change when the new government replaces capitalism with another form of economy. What are the most likely results of...
November 24, 2009

French
Complétez avec l’article défini ou indéfini qui convient. 1. Vous aimez __ou__ cinéma ? 2. Vous avez l’appartement ? 3. Vous connaissez __les__ enfants de Michel ? 4. Je voudrais __le__ morceau de pain. 5. Vous lisez ____ journaux ? 6. Il ...
November 23, 2009

MATH
what's the equation tho?
November 23, 2009

organic Chemistry
In my Organic chemistry lab, the calculated enantiomeric excess was over 100% . Is this possible? and If not, what sort of error could have been made? *the observed optical rotation was read correctly
November 23, 2009

Math
Bert is 11 kilometers away from Brenda. Both begin to walk toward each other at the same time. Bert walks at 4 kilometers per hour. They will meet in 2 hours. How fast is Brenda walking?
November 21, 2009

Algebra
1. n^3/n^5 2. (2b)^3(b^-4) 3. (mn)^2 ∙ n^4 4. 3a^5 ∙ 5a^-2 ∙ a^3 5. (x^3/xy^4) ∙ (y/x)^5 6. (a^-1)(b^2)/ab ∙ (a^2)(b^3)/b^-2
November 18, 2009

reading
Who wrote this poem where a boy couldn't write a poem but instead he ended up writing one with all his excuses?
November 16, 2009

Math
What are the odds against getting all heads or all tails in three successive flips of a coin? I say it is 3:1, is this right?
November 15, 2009

logarithms
how do i solve: log4x^3 + log2x^1/2 = 8 please help me
November 8, 2009

5th grade math
there r 2 girls n one girl has $.60 more then the other and together they total $8.20. so u set up an equation 2x+.60=$8.20. u first subtract 60 cent from both sides n that leave u with 2x=$7.60. now u divide both sides by 2 to get how much each girl has n x= $3.80. n finally ...
November 5, 2009

calculas
Consider the function f(x)x^4 -32x^2 +2, -3 < or = to x < or = to 9. This function has an absolute minimum value equal to ? and an absolute maximum value equal to ?
November 5, 2009

calculus
The linear approximation at x=0 to f(x)= sqrt (7+6x) is y=
November 5, 2009

calculas
The function f(x)= (8x-7)e^2x has one critical number. Find it
November 5, 2009

calculus
If f(x)=x^3. Yhe equation of the tangent line to f(x) at x=4 is y=? Using this, we find our approximation for 3.8^3 is ?
November 5, 2009

math115
u first distribute the -5 to the 3x n negative 4. so u get 6-15x+20=-49. u then combine 6 and 20 to get 26. so u get 26-15x=-49 then u subtra t 26 from buth sides and get: -15x=-75. then u divide -15 from both sides n x =5. hope this helped!!
November 5, 2009

Science,Ecology
What do iterlocking food chains make up?
November 2, 2009

Math
Solve the quadratic equation below. Show your work and check -4x^2 = 0
November 2, 2009

Chemistry
Which of the following is most likely to LOSE electrons when forming an ion? a. F b. P c. S d. Rh e. Se
November 1, 2009

Science
A biologist is studying the epithelial cells in a variety of plants and animals. She counts the chromosomes in the epithelial cells of several organisms and finds the following numbers: Organism A: 32 chromosomes Organism B: 26 chromosomes Organism C: 24 chromosomes Organism D...
November 1, 2009

calculus
Use implicit differentiation to find the slope of the tangent line to the curve (y/x+8y)=x^8 +9 at the point (1,10/-79).
October 29, 2009

math
Find an algebraic model for the sum of a number and its reciprocal. I have come up with y=x+ (1/x), although I was wondering if it would be correct to write it as y=x^2+1/x I am supposed to graph this, but when i graph both I get different graphs on my graphing calculator. ...
October 28, 2009

Business
Tont has just come into a significant inheritance and decides to invest in stock in a solid, stable company. Which financial ratio is the most helpful in determining where he invests? a. Liquidity ratio b. Profitability ratio c. Leverage ratio d. Activity ratio
October 27, 2009

Business
What type of accountant would collect information on a firm's transaction and use the information to prepare financial statements that companies use in decision making? a. Public accountant b. Management accountant c. Not-for-profit accountant d. Government accountant
October 27, 2009

Business
Which one reflects the financial position of a company at any given time? a. equity b. statement of cash flows c. balance sheet d. profit and loss statement
October 27, 2009

Business
The debts of a business are considered a. liabilities b. assets c. equity d. securities
October 27, 2009

Business
Which of the following is true concerning the preparation of financial statements? a. The cost of goods sold is added to sales b.The cost of goods sold is deducted from sales c. The tax and interest are deducted before income profit is reported d. The gross profit is found by ...
October 27, 2009

Business
Which one provide the necessary information to determine the liquidity of a company? a. Government agency b. Stockholders c. Contract negotiations d. Financial statements
October 27, 2009

Business
Accounting transactions from source documents are recorded in a a. ledger b. cash flow statement c. journal d. profit and loss statement
October 27, 2009

Business
Need help with Penn Foster exams number 50084300 and 50084400. Can somebody help me?
October 27, 2009

5th grad math cubic units
Thank you. So then: let's say you're looking at a 3 dimentional block of units: 4 blocks in length, 2 blocks with and 3 blocks high. The volume would be 24, what would the cubic units be? Wouldn't it be the same?
October 26, 2009

5th grad math
Let's say you're looking at a 3 dimentional block of units: 4 blocks in length, 2 blocks with and 3 blocks high. The volume would be 24, what would the cubic units be? Wouldn't it be the same?
October 26, 2009

5th grad math
what is the difference between cubic unit and volume? I know that volume is length X width X height but wouldn't the cubic units come out to the same answer?
October 26, 2009

Math
What is the measure of the dent angle for a star-shaped polygon with 8 points and a point angle of 20°?
October 25, 2009

Math
Determine if the given regular figures form semiregular tessellations. Triangle, decagon, 15-gon? Yes or No
October 25, 2009

Math
Which figure if any, is topologically equivalent to a sponge? Pencil, Pipe, or Trophy and Why?
October 25, 2009

Math
When two balanced dice are rolled, 36 equally likely outcomes are possible. What are the odds of getting a 5 or 6?
October 14, 2009

math
The sum of my digits is the same as the product of my digits who am I?
October 13, 2009

math
The product of my digits is 10. I'm an even number who am I?
October 13, 2009

math
My digits are the same. Their sum is 3 less than their products. Who am I?
October 13, 2009

Math
To find the length of the longer leg of a 30°–60°–90° triangle, multiply the length of the shorter leg by _______. To find the length of the shorter leg of a 30°– 60°– 90° triangle, multiply the length of the longer leg by _______.
October 13, 2009

Physics
A 5 N force directed to the west acts on an object for 2.0 seconds. What is the change in momentum of the oject? Would it be 5 X 2?
October 11, 2009

Chemistry
What is the mass of 7.817 × 1023 atoms Ag?
October 11, 2009

Math
Two dice are rolled. Find the odds that the score on the dice is either 10 or at most 5
October 11, 2009

Math
A basketball player with a free throw shooting percentage of 60% gets fouled and goes to the line to shoot two free throws. What are the odds in favor of her making her first shot?
October 11, 2009

Physics
he weight of an astronaut on the moon is 127 N, where the value of 'g' is only 1.7 m/s2. What would the weight of this astronaut be on the Earth (in N)? I dont know if my attempt is rite? 127n/1.5ms^2 74.70N Divide 74.70N with earth value of G. What is the earths value...
October 8, 2009

8th grade
Can you help me solve this equation. 6n-(-2n)+8
October 5, 2009

physics
Four 6.0 spheres are located at the corners of square of side 0.7m. calculate the magnitude and the direction of the total force exerted on one sphere by the other three.
October 4, 2009

Physics
I not sure if this can be answered =-(
October 2, 2009

Physics
The Russell Traction System To immobilize a fractured femur (the thigh bone), doctors often utilize the Russell traction system illustrated in the figure. Notice that one force is applied directly to the knee, F_1,while two other forces, F_2 and F_3 are applied to the foot. ...
October 2, 2009

chemistry
How many valence electrons are there in BrF3?
October 1, 2009

chemistry
and wouldn't the last one remain unchanged since it was at the end of the experiment and wouldn't affect it?
October 1, 2009

chemistry
I know, and i'm sorry. I am having a lot of trouble with these ones. I thought for the second one. it would cause a higher molarity since the pH was lower, but i'm still not sure
October 1, 2009

chemistry
So i had trouble finding the answers to these questions on a lab: Background: If we were using a burret/flask instead of a pipette and well plates. Before you started, the buret must be rinsed with 1 ml of distilled water and then 1 ml of NaOH solution. The flask would also be...
October 1, 2009

Algebra 2
What is the slope of a line perpendicular to y=2/3x-7? What is the slope of a line parallel to y=2/3x-7?
September 23, 2009

math
yes it is right
September 20, 2009

psychology
Present a situation in which you acted or reacted ‘mindlessly’ (see web links below), rather than thoughtfully, and which did not turn out well for you. Using the critical thinking concepts discussed in Chapter 1 and concepts of Chapter 8 and/or from the internet, ...
September 16, 2009

grammar
I have an example of a sentence I need help with: "I am passionately in love with someone who does not know I exist." I think 'I, and who' are pronouns. I think 'am, love' are adjectives. I think 'in and with' are prepositions. I think '...
September 15, 2009

psychology
describe neurotransmitters in terms of what they are, their general function within the body, and their impact on behavior. discuss the connection between neurons and neurotransmitters. pick two neurotransmitters and discuss their general functions in our bodies. also discuss ...
September 12, 2009

7th grade math
try a calculator
September 10, 2009

Geometry
ok thank you u r a lifesaver
September 10, 2009

Geometry
(3.14)(4.2)=13.188 would I round that to 13.19?
September 10, 2009

Geometry
No wonder I kept getting a weird answer thank you for clarifying for me...
September 10, 2009

Geometry
Find the circumference of a circle whose diameter is 2xR=4.2 ft. Use Pi = 3.14, and round the result to the nearest tenth. would this be 3.14*2*4.2ft?
September 10, 2009

Geometry
would this be 3.14 x 2 x 4.2ft?
September 10, 2009

Geometry
Find the circumference of a circle whose diameter is 2xR=4.2 ft. Use Pi = 3.14, and round the result to the nearest tenth.
September 10, 2009

Math
Problem Solving question - place value and exponents. Are 10o and 2o equal? Why or Why not
September 10, 2009

Physics
A Canadian goose flew 845 km from Southern California to Oregon with an average speed of 28.0 m/s. How long, in hours, did it take the goose to make his journey?
September 10, 2009

literature
thanks!
September 3, 2009

literature
well for the first one i thought that maybe burden saw it raw and featurless because he wasn't expecting anything when he moved to nebraska and everything was so different from the city life. but antonia became such a big part of her life that he started admiring the ...
September 3, 2009

literature
i've already read those sites but mostly i dont understand what the questions mean
September 3, 2009

literature
Just as My Àntonia’s setting is initially raw and featureless, its narrative at first seems haphazard: “I didn’t arrange or rearrange. I simply wrote down what of herself and myself and other people’s, Antonia’s name recalls to me. I suppose it ...
September 3, 2009

american literature
In My Antona, what does Jim lose in the process of growing up? Does Antonia lose it as well? At first I thought his youth and innocence but then it didn't seem right.
September 2, 2009

american literature
thanks for the site but it doesnt really help much. some of them just repeat the question
September 1, 2009

american literature
When Jim arrives in Nebraska, he sees “nothing but land: not a country at all, but the material out of which countries are made.” Yet at the novel’s end the landscape is differentiated. It has direction and color – red grass, blue sky, dun-shaded bluffs. We...
September 1, 2009

literature
we read my sister's keeper and one of the questions from our study guide talks about Campbell's dog, Judge in what ways do dogs introduce ideas about loyalty and instincts?
August 23, 2009

business statistics
A researcher has observed independent samples of females and males, recording how long each person took to complete his or her shopping at a local mall. The respective times, in minutes, are listed in the following table,Using the 0.025 level of significance in a one-tail test...
August 8, 2009

business statistics
what null and alternative hypotheses would be appropriate for the one-way ANOVA to examine the data? Given the following data, what conclusion would be reached at the 0.05 level of significance? From the F distribution tables, what is the approximate p-valeu for this test? ...
August 8, 2009

geometry
what is the surface area of a sphere if the radius, r, is 6 meters
July 31, 2009

Compensation
I'm having a problem can't locate answer for this question: THIS CAUSE COMPENSATION SURVEY DATA TO BECOME ABSOLETE FAIRLY QUICKLY. a) the lag time between when the data was collected and used b) pay compression c) chane in the unemplment rate d) changes in the ...
June 16, 2009

Compensation
I 'm having a hard time finding answer for this question: can you please help?? In Compesation Surveys how are relevant labor markets defined : a) employment numbers, occupational classification, geography b) occupational classification, market competition, employemnt ...
June 16, 2009

AED200
AED 200 Multicultural Education Scenario The steps needed for a Multicultural Education in my classroom I must build a lesson plan around topics and concepts that should be taught and not activities. Choose activities that will explore my topics and concepts. Every student in ...
May 24, 2009

AED200
With what is stated here in my question how would you think the paper should be written. I did it as an outline because it stated to outline the steps required for a effective education. this is what I wrote do you feel I wrote it the wrong way? AED 200 Multicultural Education...
May 24, 2009

AED200
Read the following scenario: You are a second-grade teacher at Happy Valley Elementary School. You are teaching language arts and social studies. Your classroom of 21 students consists of 7 white students, 5 Latino students, 4 African American students, 3 Native American ...
May 24, 2009

humanities
what effect do religious pluralism and interfaith movement will have on the future of organized religion
April 23, 2009

Social Studies for 7th grade
who was king first julius ceasar orromulous & remus
April 17, 2009

IPC
Explain whether the photons emitted by a bright light bulb are more energetic than those emitted by a dim light bulb of the same color. how does the color of the light bulb determine the amount of energy of the electromagnetic waves?
April 15, 2009

9th grade
Explain what is meant by the "dual nature" of light
April 15, 2009

elementary algebra
4x^2-45x+50=0
April 15, 2009

Biology- Human Karyotyping
Could someone help me find 2 disorders that are the result of non-disjunction. I already have down syndrome, klinefelter syndrome, Turners Syndrome, Super Males, Triple X syndrome, Edward's syndrome and Patau's syndrome. Thanks in Advance
April 12, 2009

Macbeth help again please
Thanks so much for the in-depth explanations bobpursley & Writeacher! It helped me a lot.
April 4, 2009

Macbeth help again please
hi there, in Act 1 Scene 6, Duncan says" See, see, our honored hostess! The love that follows us sometime is our trouble, Which still we thank as love. Herein I teach you How you shall bid God 'ild us for your pains, And thank us for your trouble. " He groups ...
April 4, 2009

Macbeth
Also, I have another question to ask. Our instructor gave us an outline to follow on how to write the intro paragraph. It was: 1) linkage to real life 2)Connection to the play 3)thesis 4)Purpose 5)Plan. My question is that, does the "linkage to real life" have to ...
April 3, 2009

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