Friday

February 27, 2015

February 27, 2015

Total # Posts: 1,194

**world history**

Which technologies have been pivotal in the development of the Information Age? To what extent did the industrial revolution create the foundation for modern technologies?
*February 17, 2014*

**Math**

Kayla had 441 stamps.She lost 3/7 of them. How many stamps did she have left?
*February 13, 2014*

**Calculus 3**

Find the center of the ellipsoid x^2+4y+2z^2+2x-4y+z = 20 I'm having trouble factoring to get the center points. Can someone please help. This is where I'm stuck. (x^2+2x+1)+4(y^2-y+1/4)+2(x^2+1/2z+1/16)=20+1+1+1/8 (x+1)^2+ Now I don't know how to get the y and z ...
*February 7, 2014*

**Chemistry**

what if you were mixing two different solutions? such as .9% of the NaCl solution and a 5% dextrose solution? would you just find the moles of both like the above and add them together? then divide all of it by the L?
*February 6, 2014*

**Chemistry**

I'm doing something wrong with osmolarity. I have 100 ml of .9% NaCl. So what i did was take the MW (58.44) and divided it by the .9 because it should be grams, then divided that number by .1 (for the liters) but its coming out with a huge number and its not supposed to. I...
*February 6, 2014*

**Chemistry**

Aspirin, C9H8O4 , is produced through the following reaction of salicylic acid, C7H6O3, and acetic anhydride, C4H6O3: C7H6O3(s) + C4H6O3(l) ---> C9H8O4(s) + HC2H3O2(l) A. What mass of aspirin (kg) could be produced from 75.0 mol of salicylic acid? B. What mass of acetic ...
*February 5, 2014*

**Chemistry**

If you total sample mass was 1.50 g, and you determined that 0.95 g were KHCO3, what was the percent mass off the KHCO3 in the sample?
*February 2, 2014*

**music**

I'm scared she might get mad so I need someones opinion should i pick him or another rock star?
*January 28, 2014*

**music**

Ok thanks but someone told me he worshipped satan so do u think my teacher would get mad?
*January 28, 2014*

**music**

In class I have to write a report on a music star so I chose marylin manson can someone tell me about him?
*January 28, 2014*

**Science**

Which of the following is disadvantage of internal fertilization? A. Gametes are released into the surroundings. B. Gametes may get washed away. C. The developing zygote is protected. D. Larger numbers of eggs can be fertilized at one time
*January 28, 2014*

**Science**

Ok i hope I'm not being rude by saying this but why do u think that because I think the answer is C so I wanna compare our reasons XD
*January 28, 2014*

**Science**

Which of the following is disadvantage of internal fertilization? A. Gametes are released into the surroundings. B. Gametes may get washed away. C. The developing zygote is protected. D. Larger numbers of eggs can be fertilized at one time.
*January 28, 2014*

**Science**

Ok I have one more question and it is the same as this one but instead of external its internal? And the answers are the same as well like the question.
*January 28, 2014*

**Science**

I think B.
*January 28, 2014*

**Science**

Which of the following is disadvantage of external fertilization? A. Gametes are released into the surroundings. B. Gametes may get washed away. C. The developing zygote is protected. D. Larger numbers of eggs can be fertilized at one time.
*January 28, 2014*

**Science**

Thanks I have another questions to :)
*January 28, 2014*

**Science**

A male peacock displays his colorful tail in order to...... A. increase the success rate of asexual reproduction B. increase the gestation period. C. release gametes into his surroundings D. attract a mate
*January 28, 2014*

**Science**

A male peacock displays his colorful tail in order to...... A. increase the success rate of asexual reproduction B. increase the gestation period. C. release gametes into his surroundings D. attract a mate
*January 28, 2014*

**Science**

I have another questions in science if someone is willing to help me
*January 28, 2014*

**Science**

Ok sorry
*January 28, 2014*

**Science**

Please help me!
*January 28, 2014*

**Science**

Seahorses change color and swim together in predetermined ways before mating. The behaviors are called....... A.asexual reproduction. B. sexual reproduction. C. courtship rituals. D. budding.
*January 28, 2014*

**Physical Science**

Can someone help me =.=
*January 22, 2014*

**Physical Science**

1) Carbon dioxide is obtain from the air and changed into carbohydrates oxygen during the process of fossilization. respiration. digestion. photosynthesis. 2) Which sequence of processes must occur for an atom of carbon to go from car to tree? respiration, decomposition. ...
*January 22, 2014*

**math**

2 ones, 48 tenths and 5 hundreds =
*January 8, 2014*

**math**

quadrilateral RSTU has vertices R(-6,-3), S(3,3), and T(4,-1). what are the coordinates of vertex U if RSTU is a parallelogram?
*December 25, 2013*

**Math**

A client comes to you for investment advice on his $500,000 winnings from the lottery. He has been offered the following options by three different financial institutions and requests assistance to help understand which option would be the best for his investment. •...
*December 23, 2013*

**math**

A client comes to you for investment advice on his $500,000 winnings from the lottery. He has been offered the following options by three different financial institutions and requests assistance to help understand which option would be the best for his investment. •...
*December 22, 2013*

**Algebra 2 9th/11th grade math**

Solve for the indicated variable. Include all of your work in your answer. Submit your solution. P = 2L + 2W; for L
*December 19, 2013*

**Healthcare Statistic**

true
*December 16, 2013*

**math**

how do i solve function tables?
*December 16, 2013*

**math**

Identify the solution(s) of the system of equations, if any. 2x+5y=10, y=2-x
*December 7, 2013*

**Algebra**

Remove the parentheses from the following expression, and combine like terms: 3(ax + b2 – c) + 2 22 A. –3(ax – b2 + 3c – 6 B. 3ax +3b2 – 3c + 2 C. 3(ax + 3b2 – 3c + 6 D. (ax + b2 – c + 5
*November 15, 2013*

**physics **

a 36 kg child slides down a slide at a height of 2.5 m at at velocity of 3 m/s. how much energy was transferred by friction as she slid down the slide?
*November 12, 2013*

**Earth Science**

THANKS !
*November 5, 2013*

**Earth Science **

do you think that the earthquake that affected japan should have a impact on the nuclear issues for the united states ? DONT UNDERSTAND THIS QUESTION AT ALL !
*November 5, 2013*

**Chemistry**

never mind I figured it out!! hydrogen peroxide, so it breaks down to water and O2 and seeing the bubbles proves that the actual reaction occurred
*October 29, 2013*

**Chemistry**

what is important about oxygen being formed during a titration?? (formed in container after it has been titrated not in the burette)
*October 29, 2013*

**Geometry**

Find the measure of angle DBC. D=X^2+1 A=2x+3x-2 C=4x+3 This is the only question I do not know for my homework ,I just don't understand it. PLEASEE Explain Step By Step .
*October 27, 2013*

**meterology**

Saturated (cloudy) air at a temperature of 20 °C (68 °F) has a relative humidity of _________%
*October 23, 2013*

**Physics**

A police radar has an effective range of 1.0 km, and a motorist's radar detector has a range of 1.9 km. The motorist is going 100km/h in a 80km/h zone when the radar detector beeps. At what rate must the motorist decelerate to avoid a speeding ticket?
*September 6, 2013*

**Health**

Is it "c"??
*August 22, 2013*

**Business English **

Investors and their wives" is considered sexist because:
*August 12, 2013*

**pllzzz**

i rlly need this question answered cuz i have to get these problems done i dont mean to be pushy
*July 31, 2013*

**math**

A rectangle has a perimeter of 42 cm. One of its sides is 11 cm long. What are the demensions of the rectangle??
*July 31, 2013*

**chemistry 2**

Calculate the relative concentrations of o-ethylbenzoic acid (pKa 3.79) and potassium o-ethylbenzoate that are needed to prepare a pH 4.0 buffer I know to set up hassle equation but when i get .21=log[a-/ha] i get lost because i was not given concentrations .. please help ...
*July 28, 2013*

**Calculus Grade 12**

Find the equation of the plane that passes through the point (3,7,-1) and is perpendicular to the line of intersection of the planes x-y-2z+3=0 and 3x-2y+z+5=0
*June 10, 2013*

**economics**

explain how a us citizen whose income is in the top one percent would talk about scarcity
*May 30, 2013*

**economics**

explain how a us citizen whose income is in the top one percent would talk about scarcity
*May 30, 2013*

**Algebra**

The length of a rectangle is (x+2) inches. The width of the rectangle is (x+1) inches. Write an equation that can be used to determine the area (A) of the rectangle in terms of x. What is the value of x if the area of the rectangle is 56 square inches?
*May 16, 2013*

**Algebra**

Jan is a photographer. She earns $42.50 for each picture she sells. It costs Jan $850.00 per month to maintain her photography lab. Write an equation that represents the relationship between Jan's monthly profit (P) and the number of pictures (x) she sells. What does the x...
*May 16, 2013*

**Algebra**

The perimeter of a rectangular garden is 35 feet. The length of the garden is 1 foot more than 2 times its width. Write an equation to represent the perimeter of the garden in terms of its width (w). What are the length and width of the garden in feet?
*May 16, 2013*

**language**

I know there both authors :)
*May 12, 2013*

**L.A**

Anyone know anything?
*May 12, 2013*

**language**

I'm not sure because I need the answers to :) but if you find out anything let me know =)
*May 12, 2013*

**english**

1. Read the following stanza from “Alone”: Lying, thinking Last night How to find my soul a home Where water is not thirsty And bread loaf is not stone I came up with one thing And I don’t believe I’m wrong That nobody, But nobody Can make it out here alone...
*May 1, 2013*

**Math**

The area of a rectangular garden is 110 square meters. The width is 6 meters loner than one-half of the length. Find the length and the width using area=lengthxwidth
*April 30, 2013*

**English**

1. A. 2. B.
*April 28, 2013*

**English**

i think the first one is B. but i'm not really sure. 2. i think is A.
*April 28, 2013*

**English**

1.) We hung makeshift curtains in our room using (1point) A. Bed sheets. B. Old Curtains. C. New Curtains. 2.) Which of the sentences below is punctuated correctly? A. I opened the door and my cat ran outside. B. I opened the door, and my cat ran outside. C. I opened the door...
*April 28, 2013*

**chemistry**

interpret the following balanced equation into Particles, Moles, Mass: 2Al+3CuSO4== AL2(SO4)3+ 3Cu
*April 24, 2013*

**physics**

The period of the musical node E0 is 4.85 × 10-2 seconds. What is the frequency of this note?
*April 19, 2013*

**english**

should religious phares be taken out of money for a reasearch paper
*April 14, 2013*

**physics**

What is the maximum acceleration a car can undergo if the coefficient of static friction between the tires and the ground is .90
*April 10, 2013*

**Math**

If you deposit P dollars into a bank account paying an annual interest rate r, with n interest payments each year, the amount A you would have after t years is A=P(1+r/n)^nt. Kevin places $100 in a savings account earning 6% annual interest, compound quarterly. If Kevin adds ...
*April 1, 2013*

**calculus **

Find a formula for the fourth degree polynomial p(x) whose graph is symmetric about the y-axis, and which has a y-intercept of 4, and global maxima at (1,6) and(-1,6).
*March 29, 2013*

**I would like to understand my calc homework:/**

I think the whole non panicing ship sailed a long time ago haha. Sorry and thanks for the help!
*March 27, 2013*

**I would like to understand my calc homework:/**

Consider the differential equation given by dy/dx=(xy)/(2) A) sketch a slope field (I already did this) B) let f be the function that satisfies the given fifferential equation for the tangent line to the curve y=f(x) through the point (1,1). Then use your tangent line equation...
*March 27, 2013*

**Ellipses**

Given an ellipse; 4x^2+y^2-48x-4y+48=0, find the Center, find the Major Axis, find the Minor Axis & the Distance from C to Foci?
*March 27, 2013*

**ellipses**

given an ellipse; 2x^2+6y^2+32x-48y+212=0, find center, major axis, minor axis & distance from c to foci?
*March 27, 2013*

**Ellipses**

Given an ellipse; 8x^2+y^2+80x-6y+193=0, find center, major axis, minor axis, & distance from c to foci?
*March 27, 2013*

**ellipses**

Given an ellipse; 3x^2+5y^2-12x-50y+62=0, find the Center, the Major Axis, the Minor Axis, & the distance from C to Foci?
*March 27, 2013*

**ellipses**

Given an ellipse; 3x^2+5y^2-12x-50y+62=0, find the Center, Major Axis, Minor Axis, & the distance from C to Foci?
*March 27, 2013*

**English**

I have to annotate some notes and I'm not sure what a couple of these terms mean, your help would be much appreciated! Unifying Effect Analytical Writing Thesis Statement
*March 26, 2013*

**math**

4/x=radical11-1/3
*March 26, 2013*

**probability**

in a 2-card hand, what is the probability of holding only face cards?
*March 25, 2013*

**Chemistry**

would i divide 0.111M by 2
*March 22, 2013*

**Chemistry**

Calculate the molarity of the nitrate ion in a 0.111 M solution of calcium nitrate? so would I have to find the number of moles of (NO3)2 and then divide it by the 0.111 M to get the molarity of the nitrate ion I am so confused please explain the set up I don't want the ...
*March 22, 2013*

**Biology**

I know Darwin went the Galapagos islands and he viewed the finches found there how their beaks were different sizes and shapes because of the seeds they ate but they were all the same species but their beaks changed because of natural selection.
*March 20, 2013*

**Math**

What is the perimeter of an equilateral triangle with an altitude of 15m?
*March 14, 2013*

**Calculus**

Is there anybody who can actually walk me through working out the problem please?
*March 11, 2013*

**Calculus**

Find an equation of the tangent line to the given curve at the specified point: y=sqrt(x)/x+1, (4,2/5)
*March 11, 2013*

**college general chemistry**

3Co(NO 3 ) 2 (aq) + 2Na 3 PO 4 (aq) &---> Co 3 (PO 4 ) 2 (s) + 6NaNO 3 (aq) how do I find the molar mass of precipitate.X hydrate
*March 10, 2013*

**Algebra 2**

Because of friction and air resistance, each swing of a pendulum is a little shorter than the previous one. The lengths of the swings form a geometric sequence. Suppose the first swing of the pendulum has an arc length of 100 cm and a return swing of 99 cm. a.)On which swing ...
*March 7, 2013*

**Physics**

A thundercloud has an electric charge of 43.2 C near the top of the cloud and -38.7 C near the bottom of the cloud. The magnitude of the electric force between these two charges is 3.95x10^6 N. What is the average separation between these charges? (kc=8.99×10^9 N • ...
*March 7, 2013*

**Math**

How high is a wall that casts a 10ft shadow @ the same time that a 6ft flag pole casts a 6ft shadow
*February 28, 2013*

**college general chemistry**

calculate the lowest whole number ratio of Moles of Mg/moles of O average of Moles of Mg/Moles of O Trial 1 mass of empty crucible and lid= 36.560 mass of Mg=0.348 mass of crucible, lid, and product=38.229 Trail 2 mass of empty crucible and lid=32.221 mass of Mg=0.340 mass of ...
*February 25, 2013*

**college general chemistry**

calculate the lowest whole number ratio of Moles of Mg/moles of O mass of empty crucible and lid= 36.560 mass of Mg=0.348 mass of crucible, lid, and product=38.229
*February 25, 2013*

**chemistry**

What is the limiting reagent for 6HCl + Fe2O3 = 2FeCl3 + 3H2O ? 6HCl has 18.44 moles and Fe2O3 has 2.91 moles. Also how many moles would FeCl3 produce?
*February 25, 2013*

**chemistry**

What is the limiting reagent for 6HCl + Fe2O3 = 2FeCl3 + 3H2O ? 6HCl has 18.44 moles and Fe2O3 has 2.91 moles. Also how many moles would FeCl3 produce?
*February 25, 2013*

**Spanish**

definite articles(el, la, los, las) must always agree with the noun. If it is masculine singular(el), if it is masculine plural(los), feminine singular(la), feminine plural(las). If you have a mixed group like your pasajeros above, then it would take a masculine plural ...
*February 15, 2013*

**Spanish**

1. Vengo de la taqueria 2. Venimos de la .... 3. Viene de la ..... 4. acabar de 5. acabas de estudiar 6. acaba de caminar por el parque 7. muchas vacas 8. muchos edificios grandes
*February 15, 2013*

**Bio**

In Drosophila, sepia colored eyes are due to a recessive allele s and wild type (red eye color) to its dominant allele s+. Sepia-eyed females are crossed to pure wild type males. What phenotypic and genotypic ratios are expected if the F1 males are then backcrossed to sepia-...
*February 13, 2013*

**math**

What are you trying to find the area???
*February 8, 2013*

**math**

Simplify the third root of 4 over the fifth root of 8
*February 8, 2013*

**Spanish please translate from spanish to english**

Prima in this context is referring to cousin(feminine). 1. Which is the older cousin? 2. Which is the younger cousin?
*February 8, 2013*

**Spanish**

5. c 6. d 7.d. 8. b. 9. a. 10. c
*February 4, 2013*

**Spanish**

1. B 2. Should be D. 3. C is correct 4. Should be A. It is asking what you(plural) do
*February 4, 2013*

**Alegebra I**

I need help please!!! On January 1, 2010, Chessville has a population of 50,000 people. Chessville then enters a period of population growth. Its population increases 7% each year. On the same day, Checkersville had a population of 70,000 people. Checkersville starts to ...
*February 3, 2013*

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