Wednesday

May 25, 2016
Total # Posts: 1,276

**economics**

This is my son who is in 10th grade homework assignment. I want to be able to help and not look like a dope! I really have no clue! 1. Why do economists consider growth in the average labor productivity to be the key factor in determining long run living standards? 2. And, Let...
*April 29, 2011*

**physics**

What pressure difference is required between the ends of a 2.0--long, 1.0--diameter horizontal tube for 40 water to flow through it at an average speed of 4.0 ? I know we have to find delta P, but i'm stuck on how to do that. Help would be great
*April 12, 2011*

**Physics**

A ramp, a pulley, and two boxes. Box A, of mass 10.0 kg, rests on a surface inclined at 37° to the horizontal. It is connected by a lightweight cord, which passes over a massless and frictionless pulley, to a second box B, which hangs freely as shown. If the coefficient of...
*April 10, 2011*

**algebra**

what is the fraction form of -0.048
*April 9, 2011*

**algebra**

If your thinking of a number between 8 and 15-which is it most likely to be
*April 9, 2011*

**English**

Explain how Tom Joad's imprisonment affect the way he behaved during the journey and throughout his search for work in California.
*April 7, 2011*

**English**

Explain how Tom Joad's imprisonment affect the way he behaved during the journey and throughout his search for work in California.
*April 7, 2011*

**Physics**

35 of copper pellets are removed from a 300 oven and immediately dropped into 120 of water at 20 in an insulated cup.What will the new water temperature be? I'm stuck on this problem and could use some help. I used q pellets = m · Cp · ΔT and q water = m...
*April 5, 2011*

**math**

What is the difference between the shape of a side view of a triangular prism and a top view of a triangular prism?
*April 3, 2011*

**math**

Which choice below gives the number of faces, edges, and vertices of a rectangular pyramid? A. 5, 8, 5 B. 4, 7, 4 C. 6, 12, 8 D. 8, 10, 8
*April 3, 2011*

**math HELP!! **

1/4! Thank you very much!!!
*April 3, 2011*

**math HELP!! **

Adam colored two parts of a 4 × 4 grid. He colored 1_ 2 of the squares red and 1_ 4 of the squares blue. How many of the squares are not colored? Explain your answer. What fraction of the squares are not colored? Explain your answer.
*April 3, 2011*

**math HELP!!**

I get it now. Thank you and sorry for troubling you!
*April 3, 2011*

**math HELP!!**

what I don't get is if I'm supposed to add ,subtract,divide,multiply,or use some of them.
*April 3, 2011*

**math HELP!!**

any other suggestions, ms. sue?
*April 3, 2011*

**math HELP!!**

excuse me but what is ...
*April 3, 2011*

**math HELP!!**

. Adam wants to compare the fractions 2 5 1 6 , and 1 3 . He wants to order them from least to greatest and rewrite them so they all have the same denominator. Explain how Adam can rewrite the fractions.
*April 3, 2011*

**geometry AGAIN**

Which sold has the most vertices? A.Triangular Prism B. Rectangular Prism C.Rectangular pyramid D.Square Pyramid
*March 31, 2011*

**geometry**

What solid has 2 triangular faces and 3 rectangular faces?
*March 31, 2011*

**phi 103**

The second level of argumentation, where generalizations can be found in the form of public opinion polls, ratings for television and radio stations, and research surveys. (Points : 1)
*March 26, 2011*

**chemistry**

No. A buffer is made by mixing a weak acid and its conjugate base. For example, HC2H3O2 + NaC2H3O2
*March 24, 2011*

**chemistry**

Partial pressures are additive. So, total pressure - partial pressure of Hg = partial pressure of nitrogen. Use PV = nRT (using nitrogen's partial pressure) to find volume.
*March 24, 2011*

**CHEM**

You need to know the volume of the solution being titrated. Are the two solutions mixed (buffer)?
*March 24, 2011*

**Chemistry (please help!!)**

(P1xV1)/T1 = (P2xV2)/T2 T2 = (P2xV2xT1)/(P1xV1)
*March 23, 2011*

**Chemistry**

0.01L x 3.20 mol Ca(OH)2/1L x 1000mL/1.211mol H2SO4 =
*March 23, 2011*

**Chemistry-102**

0.025L x 0.25 mol HCl/1L = mol HCl 0.025L x 0.125 mol NaOH/1L = mol NaOH HCl + NaOH --> H2O + NaCl You have twice as many moles of HCl as NaOH, so there will be left over HCl. Find the moles of HCl left over and divide by the combined volumes to get its molarity. That will ...
*March 23, 2011*

**chemistry**

HCl is a strong acid, it completely ionizes HCl + H2O --> H3O+ + Cl- The concentration of H3O+ = the concentration of HCl.
*March 23, 2011*

**Medical Information management**

Mercys hosptials filing system is a middle digit. What is a disadvantge of middle digit filing? a. less accurate b. requires more staff training c. provides less ven distribtuin of recors that straight numeric d. Can't be converted to terminal digit filing
*March 18, 2011*

**Medical Information management**

Henry Moore reviewed record 88-00-17 and discovered a missed dose of triazolam on march 10. the type o review is called? a. quantititative b. utilization c. qualitative d. concurrent
*March 18, 2011*

**Medical Information management**

Henry moore reviewed medical record 88-oo-17 and discovered a missed dose of triazolam on march 10. This type of review is called a/an _____review. a. quantitative b. utiliation c. qualitative d. concurrent
*March 18, 2011*

**all**

how can a pkan ofaction help youadddress a current problem or challlenge you are having in school?
*March 10, 2011*

**math HELP!!**

Are the following simplified fractions? 1.1/2 2.1/5 3.2/3 4.5/6 5.3/4 6.4/8,1/2
*March 8, 2011*

**calculus**

Find the rate of change of area in respect to temperature of a rectangle. Its a steel plate that expands when heated. I have to find that rate of change when width is 1.7cm and length is 2.9. dl/dt=1.0 x 10^-5 (this is an exponent...) and dw/dt=8.0 x 10^-6
*March 6, 2011*

**Math**

then multiply 256 times two. If I am correct, the answer is 512.
*March 6, 2011*

**computers**

thank you all!!!
*March 5, 2011*

**computers**

I am going to become a tutor for kids grade K-3.I am tutoring Math, Writing, and Reading. Do you know any good websites that contain free printable worksheets?
*March 5, 2011*

**social studies **

cause she's the U.S. Secretary of State.
*March 5, 2011*

**physics**

please help. a pitcher throws a .50kg ball of clay at a blck of woo. the clay sticks to the wood on impact, and thier joint velocity afterwards is 3.0m/s. what is the original speed of the clay. please help with this question
*March 2, 2011*

**chemistry **

Internal energy = heat + work Work = Internal energy - heat heat = -5074.1kJ (combustion is always exothermic, so negative) work = -5084.3 kJ - (-5074.1) kJ =
*February 20, 2011*

**science/maps**

Yes
*February 20, 2011*

**chemistry**

Given: v with a power of 1 is 50 Ml aand t with a power of 1 is 30 degrees c. what is the volume with a power of two when T with a power of 2 is 20 degrees C
*February 17, 2011*

**science**

what keeps the moon traveling in the same path eah time it orbits earth
*February 14, 2011*

**algebra**

The area of a rectangle athletic field is represented by the expression 12y^3+48y^2+24y sqaure meters. write an algebraic expression to represent one possible set of dimensions (in the same sense ''length times width'') of the athletic field. include the ...
*February 11, 2011*

**algebra**

The area of a rectangle athletic field is represented by the expression 12y^3+48^2+24y sqaure meters. write an algebraic expression to represent one possible set of dimensions (in the same sense ''length times width'') of the athletic field. include the correct...
*February 11, 2011*

**algebra**

Thee area of the rectangle athletic field represented by the expressio 25y^2-4z^2 square meters. Write an algebriac expression to represent one possible set of dimensions(in the sense''length times width'')of the athletic field. include units with the solution
*February 11, 2011*

**animals**

How many eggs can a Little Blue Penguin lay? And what are their color features?
*February 10, 2011*

**animals**

What is the location of the Little Blue Penguin?
*February 10, 2011*

**college chemistry**

Calcium oxide (CaO), an important ingredient in cement, is produced by decomposing calcium carbonate (CaCO3) at high temperature: CaCO3(s) → CaO(s) + CO2(g) In one particular reaction, 40 g of CaCO3 is heated at 750°C in a 5.0 L vessel. The pressure of CO2 is 0.12 ...
*February 8, 2011*

**chemistry**

Internal energy = heat + work heat = -196 kJ work = 4200 kJ Internal energy = -196 kJ + 4200 kJ
*February 8, 2011*

**Math**

985
*February 7, 2011*

**Math**

Is (0,2) a orderd pair a solution of 4x - 3y = 6? Explain.
*February 7, 2011*

**science**

ethanol, C2H5OH, is responsible for the effts of intoxication felt after drinking alcoholic beverages. When ethanol burns in oxygen, carbon dioxide and water are produced. IF you have 256g of ethanol and 100 grams O2, calculate the amount product produced. You need to write ...
*February 6, 2011*

**Chemistry**

Aluminum has a density of 2.99 grams per cubic cm. and a specific heat of 0.22 calories per gram degree Celsius. A cube of aluminum is sitting out in the sun where it absorbs 16.2 calories of heat and warms from 62*F to 149*F How many inches wide are the sides of the cube?
*February 2, 2011*

**Chemistry**

Aluminum has a density of 2.99 grams per cubic cm. and a specific heat of 0.22 calories per gram degree Celsius. A cube of aluminum is sitting out in the sun where it absorbs 16.2 calories of heat and warms from 62*F to 149*F How many inches wide are the sides of the cube?
*February 2, 2011*

**History**

I'm not sure about general but I think welfare is the state of doing well in like happiness and good fourtune
*January 31, 2011*

**History**

What is general welfare?
*January 31, 2011*

**History**

Descirbe "To provide common defense"
*January 31, 2011*

**math**

Minimize c = x + y subject to x + 5y ≥ 6 5x + y ≥ 6 x ≥ 0, y ≥ 0.
*January 29, 2011*

**math**

Maximize and minimize p = x + 2y subject to x + y ≥ 8 x + y ≤ 10 x − y ≤ 8 x − y ≥ −8. Minimum: p = 1 x = 2 y = 3 Maximum: p = 4 x = 5 y = 6
*January 28, 2011*

**math**

You are thinking of making your mansion more energy efficient by replacing some of the light bulbs with compact fluorescent bulbs, and insulating part or all of your exterior walls. Each compact fluorescent light bulb costs $4 and saves you an average of $2 per year in energy ...
*January 28, 2011*

**MATH**

noo
*January 28, 2011*

**MATH**

I had these as the equations but how do u set them up to find how many of each to maximise profit
*January 28, 2011*

**MATH**

The Megabuck Hospital Corp. is to build a state-subsidized nursing home catering to homeless patients as well as high-income patients. State regulations require that every subsidized nursing home must house a minimum of 770 homeless patients and no more than 900 high-income ...
*January 28, 2011*

**History**

What are two executive powers of the president of the united states?
*January 25, 2011*

**geometry**

find all points of form (x,-1) 4 units from point (3,2)
*January 23, 2011*

**computers**

these are the synonyms for spiral : circling, circular, circumvoluted, cochlear, coiled, corkscrew, curled, helical, helicoid, radial, rolled, screw-shaped, scrolled, tendrillar, tortile, voluted, whorled, wound
*January 19, 2011*

**computers**

any other websites, Ms Sue?
*January 19, 2011*

**computers**

What are the best websites to find facts on inventions such as the spiral notebook?
*January 19, 2011*

**histoy**

i don't have a hole punch but thanks for your help.
*January 19, 2011*

**histoy**

what about shoelace?
*January 19, 2011*

**histoy**

it's just that i don't have much at home.The ribbon,well,let's just say I've never seen one in my life and I can't find my pipe cleaners!What do I do?! :(
*January 19, 2011*

**histoy**

what other material could i use? I'm sorry to keep bothering you but i have a report on this due TOMORROW!!!
*January 19, 2011*

**histoy**

what about pipe cleaners? I want to be creative.also, I don't have metal.
*January 19, 2011*

**histoy**

how would you make a spiral notebook with yarn,paper, and a pre-hole punched folder?
*January 19, 2011*

**histoy**

What are some interesting facts on the spiral notebook?
*January 19, 2011*

**history**

But when was the spiral notebook made?
*January 19, 2011*

**Eng Literature**

Describe the Genre between Hamlet and Midsummer Night's Dream
*January 18, 2011*

**math**

52,39 56,42 60,45 64,48
*January 13, 2011*

**history**

W. Walter Grumbacher invented it, apperently
*January 13, 2011*

**history**

Who made the spiral notebook and when?
*January 13, 2011*

**math**

I am a five-digit whole number.My digits decrease by 2 from the ten-thousands place to the ones place. Each of my digits is an even number.What number am i ?
*January 12, 2011*

**science**

what is hubble telescope, moon, saturn, sun, pleiades stars, whirlpool deep field in order to smallest to largest?
*January 12, 2011*

**Calculus **

Find dy/dx y = (x+y)/(x√2) I know that you can simplify the problem by arranging it to: y = (x)/(x√2) + (y)/(x√2) but I don't know where to go from here
*December 28, 2010*

**Medical Information management and office practice**

In what type of hmo doe the physician treat only hmo subscribers? a. group medical b. independent practice c. staff model d. Preferred provider organization
*December 21, 2010*

**Chem**

So I found the Ka for HPO4^2- which is 2.2x10^-13 Then i found HPO42- on right side of the table and found the ka value which is 6.2x10^-8. Then, I used kb=kw/ka to and got 1.61x10^-7 Since kb>ka the reaction: HPO4^2- + H2O <--> H2PO4- + OH- would be the one most ...
*December 15, 2010*

**Chem**

I don't really understand what k2 and k3 means.. To find the predominant reaction, could I compare the ka and kb values for HPO4^2-?
*December 15, 2010*

**Chem**

I answered that, but the teacher marked me wrong.. so I don't understand why? The predominant reaction should be HPO4^2- acting as an acid right?
*December 15, 2010*

**Chem**

What is the equilibrium constant expression for the predominant equilibrium in HPO4^2- (aq)?
*December 15, 2010*

**Chem**

Nevermind, I think I understand it now. Thanks.
*December 15, 2010*

**Chem**

c) Ca (s) reacts and produces Co2(g) Can you explain to me why it's b please?
*December 15, 2010*

**Chem**

which of the following occurs when a sample of 0.1M HNO3 is tested? a) phenolphthalein turns pink b) bromthymol blue turns yellow c) Ca9s) reacts and produces CO2 (g) d) Na (s) reacts and rpoduces NO2 (g)
*December 15, 2010*

**12th Grade Calculus **

Find d^2y/dx^2 by implicit differentiation. x^(1/3) + y^(1/3) = 4 I know that first you must find the 1st derivative & for y prime I got 1/3x^(-2/3) + 1/3y^(-2/3) dy/dx = 0 Then for dy/dx I got dy/dx = [-1/3x^(-2/3)] / [1/3y^(-2/3)] I think that from here I would use the ...
*December 14, 2010*

**english**

The high rate of eating disorders in the United States is mainly attributed to social factors such as media, cultural influences, and family factors. My questions is should it be, The high rate of eating disorders in the United States IS/ARE mainly attributed?
*December 10, 2010*

**math**

Suppose two dice (one red, one green) are rolled. Consider the following events. A: the red die shows 5. B: the numbers add to 4. C: at least one of the numbers is 3. D: the numbers do not add to 10. Express the event "The numbers do not add to 4." in symbols. 1 B D ...
*December 5, 2010*

**Probability**

f two indistinguishable dice are rolled, what is the probability of the event {(3, 3), (2, 3), (5, 3)}? 1 What is the corresponding event for a pair of distinguishable dice? 2 {(3, 3), (2, 3), (5, 3)} {(3, 3), (2, 3), (5, 3), (3, 5), (3, 2)} {(3, 3), (2, 2), (5, 5), (3, 5), (3...
*December 5, 2010*

**math probabilty**

Find the (theoretical) probability of the given event, assuming that the coins are distinguishable and fair, and that what is observed are the faces uppermost. Six coins are tossed; the result is at most one head.
*December 5, 2010*

**math**

Complete the following probability distribution table and then calculate the stated probabilities. Outcome a b c d e Probability 0.1 1Your answer is correct. 0.43 0.1 0.27 (a) P({a, c, e}). 2Your answer is correct. (b) P(E ∪ F), where E = {a, c, e} and F = {b, c, e}, P(E...
*December 4, 2010*

**Math Probability**

Find the (theoretical) probability of a given event, assuming that the dice are distinguishable and fair, and that what is observed are numbers uppermost. Two dice are rolled; the numbers add to 7. 1
*December 3, 2010*

**chemistry**

A 1-L flask is filled with 1.45 g of argon at 25 degrees C. A sample of ethane vapor is added to the same flask until the total pressure is 1.35 atm. What is the partial pressure of argon in the flask?
*December 2, 2010*

**math**

3y=4/5
*November 29, 2010*