Wednesday
July 23, 2014

Posts by irene


Total # Posts: 50

Physics
A block of mass 20 g sits at rest on a plate that is at the top of the fluid on the right side of a U-tube. The U-tube contains two different fluids with densities ρ1 = 900 kg/m^3 and ρ2 = 630 kg/m^3 and has a cross sectional area A = 5.3x10^-4 m^2. The surfaces are ...

Physics
A steel sphere of radius 6.5 mm is dropped into a lake. What is the terminal speed of the sphere?

Science Plzz Help
1.is c and 5 is b

physics
A steel sphere of radius 6.5 mm is dropped into a lake. What is the terminal speed of the sphere?

Literacy
if mrs green read "Little Pig little pig and the children said Let me come in then they were using

Math
. In 1991 the federal minimum wage was $4.25. In 1997 the federal minimum wage was $5.15. Find the rate of change (slope) for the federal minimum wage between 1991 and 1997.*Hint: let 1991 and 1997 be the domain and let $4.25 and $5.15 be the range

math
In order to fit 3 pictures across a page, the yearbook staff must reduce their portrait proofs using a scale factor of 8 to 5. Find the dimensions of the picture as they will appear in the yearbook.

statistics
The international bottled water association says that Americans on the average drink 4.6 (8oz) servings of water a day. Assume that the number of 8oz. servings of water is approximately normally distributed with a standard deviation of 1.8 servings what proportion of Americans...

Statistic
At one college, GPA's are normally distributed with a mean of 2.7 and a standard deviation of 0.5. What percentage of students at the college have a GPA between 2.2 and 3.2?

L.O
Identify and describe 3 environmental health hazards that cause ill health,crises,and or disasters within your community or any other community within south africa and globally.inlcude evidence that is current of the identified issues

us history
What was life like for nurses during the civil war and what incidents happend

Math
I need to translate to an algebraic expression. The product of two numbers multiplied by 3.

statistics
for a population with mean of u=50 and a standard devation o=8,find the following raw scores corresponding to each of the following z scores. z score 2.50,-.50,-1.50,.25,-1.00,.75 find the raw score(x) of the above numbers

healthcare quality and risk management
Discuss the role of stakeholders in quality and risk management including the relationships between employers and third party payers with healthcare organizations. What roles do each play in quality and risk management, if any? What is the impact on the patient's and care...

geometry
the resultant speed is the hypotenuse 9+100=109 √109=10.4

English
What is the adverb in this sentence? The seeds were planted at about four inch intervals.

physics
a force of 20 n is applied to a 10 kg mass on a level frictionless surface what is the acceleration of the mass?

chemistry
would you expect the absorbance to be higher or lower if the dilution of one of the solutions went under the calibration mark on the volumetric flask.

communication
Identify Twenty Errors in the Passage Below Review the passage below, which contains 20 errors. Identify these errors by marking each of the errors in bold, and make your correction in parentheses after the error. Example: My cars interior is black. This must be marked as foll...

algebra
what is the radical and x=5 on the inside of the radical?

physical science
yes it is with out function because of the out put of force

math
rule y=4x-5 input 3,5,7 help me find out the output values

Rounding Decimals
Use the digits 0,2,5 and 8. Write a decimal that will round up if rounded to the nearest whole number, round down if rounded to the nearest tenth, and round up if rounded to the nearest hundredth.

unit rate
what is the definishion of a unit rate

advance language arts
base: abase:: prolific:soporific mobile:immobile parley:parliament fortification:fortify CAN ANYONE HELP??

Chemistry
given 65g of Zn and 65g of HCl, what is the limiting reactant and reactant in excess in Zn + 2HCl- ZnCl2 + H2

science
How does the human body respond to cuts/wounds on the body -- immune system response? What causes the change in the skin?

Calculus
y = -6x*e^(16-3x^2) using the chain rule: (f(g(x)))prime one= f prime(g(x))*g prime(x)

calculus
o, ok thank you! I now understand.

calculus
Find an equation of the tangent line at x = 0 for the given function. f(x) = 5x2 + cos(x) I really need help on this one.

calculus
Consider the function. f (x) = 5x3 + 3x (a) Compute the derivative at x = 3 using the limit definition. f '(3) = (b) Find an equation of the tangent line. 2

english
which phrases are simile, metaphor and personfication in the following paragraph: Our vacation paradise cutting all flour legs from under the dinner table With one deep-water move he unwove the rugs in a moment throwing pints of blood over everything we owned His odd head full...

Physics
12 kPa

12th grade
i have to write my essay about "the wife of Bath's tale" and first i need to explain how " the wife of Bath's tale"' can be read as both a pro-feminist and an anti-feminist stroy" second, provide an arguemtn as to which I believe the story ...

math
50388

Math
If 8x + 5x + 2x + 4x = 114, then 5x + 3 = a.12 b.25 c.33 d.47 e.86

Math
Now I get it. Haha, I've been trying to solve this for hours.

Math
If r = 5 z then 15 z = 3 y, then r = 1. y 2. 2 y 3. 5 y 4. 10 y 5. 15 y

Math
@ bob and gama - here are the choices: $496.30 $512.40 $555.40 $574.90 $588.20 Which is the right one?

Math
Ok Thanks.

Math
Jim is able to sell a hand-carved statue for $670 which was a 35% profit over his cost. How much did the statue originally cost him?

Math
Thanks! I think I got it!

Math
Solve the following equation for A : 2A/3 = 8 + 4A

advanced math
I'm not sure how to find the line of best fit. I have two equations, linear and quadratic. I graphed them on my calculator, but now I don't know which one is the best fit. Can I tell by the r^2?

math
Hi, How could I find the line of best fit? I plotted each of the equations I had for a problem I'm solving. The equations were linear (y=ax+b) and quadratic (y=ax+b+c). I'm supposed to find out which line is the most appropriate for the data that is given to me. When ...

english for 1st grader
what is the special sound, for, round,shout and what.

Government/Social Studies
I have to locate information about racially motivated events and/or crimes that occurred between 1980 - 2000, that resulted in changes in the law or school policies. Where do I start? Please help!!

ALGEBRA HELP NEEDED PLEASE!
solve the linear system using substiution

algebra
2x +6y =-24 This is a linear equation that can be simplified by dividing through by 2. What else do you need to do with it?

Product Rule
Can someone please help me with this? f(x)=(x-2)^1/2 * (x^2-3)^3 find f'(x) using the product rul. This is what I came up with I just need to know if I did it right. f'(x)=(x-2)^1/2*3(x^2-3)+(x^2-3)^3*(1)^-1/2 Hopefully I did. Thanks. no. You are not using the chain ru...

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