Tuesday
October 21, 2014

Posts by Ann


Total # Posts: 1,232

algebra
4x+9y=52 x=35-5y
January 4, 2011

grade 9 science biology
how can be measure co2 in atmosphere
January 2, 2011

Psychology
I'll look. Thank You.
December 22, 2010

Psychology
Thank you Ms.Sue. I do understand that, however I'm looking for the technical term. I thought it was spontaneous recovery but it doesn't seem to be a conditioned and uncoditioned response/stimuli. Can you please help me? Thanks.
December 22, 2010

Psychology
Your three little brothers-John,Peter and James get the same gift for Christmas-an ice fishing pole. Your father is curious about how children learn and decides he will teach each of them using different means. With John, he gives him a verbal lecture. With peter, he ...
December 22, 2010

History
How and why did Eisenhower use the politics of consensus with Congress to achieve compromise
December 19, 2010

Physics
A beam of particles have a measured life time of 1.5 x 10-8 s when traveling 2.0 x 108 m/s. What would their lifetime be if they were at rest? My Answer: tm= tp/√(1-(v2/c2)) (1.5*10-8) = tp/√(1-((2*108)2/(3*108)2)) (1.5*10-8) = tp/√(1-((4*1016)/(9*1016)) (1.5...
December 14, 2010

algebra
Two factors, each with no digit greater than 5, have a product of 16,848. What is the largest possible 3-digit factor satisfying these conditions?
December 14, 2010

algebra
How many cubic feet are in the volume of a round swimming pool which is 16 feet in diameter and 4 feet deep throughout? Express your answer in terms of pi.
December 14, 2010

Algebra
The faces on a regular octahedral die are numbered one through eight. What is the probability of rolling 3 sixes in succession? Express your answer as a common fraction.
December 14, 2010

Physics
A person places the speakers 4.0 m apart and connects a signal generator to both speakers that produces a single and consistent tone. (constant wavelength and frequency) He then walks to a point that is 2.0 m from one speaker and 2.3 m from the other. At that point he notices ...
December 13, 2010

Physics
A person places the speakers 4.0 m apart and connects a signal generator to both speakers that produces a single and consistent tone. (constant wavelength and frequency) He then walks to a point that is 2.0 m from one speaker and 2.3 m from the other. At that point he notices ...
December 13, 2010

Business
Based on this financial info where a company's Beta Year = 2008, the Company's commons stock = 0.85, the Risk-Free Rate of Return = 5%, and the Market Risk Premium = 6%. Use the dividend growth model to calculate the Company's Common Stock in 2008. Stock 1 = 1.5, ...
December 9, 2010

Pre-Calc
Can someone please be kind and show me the steps on this? Thanks Find the equation of the circle centered at the origin in the uv-plane that has twice the circumference of the circle whose equation equals (u-5)^2 + y^2 =9
December 7, 2010

chemm
When a reaction mixture with a total volume of 1180 mL that is 0.0110 M aqueous NaCl was stoichiometrically produced as per the balanced equation, what volume (mL) of 0.0116 M aqueous Ca2+ was required? 3 CaCl2(aq) + 2 Na3PO4(aq) → Ca3(PO4)2(s) + 6 NaCl(aq) Molar Mass (g...
December 7, 2010

chemistry
If 840 mL of 0.0140 M aqueous Al3+ and 500 mL of 0.0680 M aqueous Br- are reacted, what mass (g) of Br- is produced? Al2(SO4)3(aq) + 3 CaBr2(aq) → 2 AlBr3(aq) + 3 CaSO4(s) Molar Mass (g) Br- 79.904 Al3+ 26.982 Br- 79.904 Molar Volume (L) 22.400 at STP Gas Constant 0.0821
December 7, 2010

Chemistry
Does HCl form a precipitate with NaClO?
December 6, 2010

physics
To balance a 40.8-kg automobile tire and wheel, a mechanic must place a 41.7-g lead weight 25.0 cm from the center of the wheel. When the wheel is balanced, its center of mass is exactly at the center of the wheel. How far from the center of the wheel was its center of mass ...
December 2, 2010

Pre-Calculus
Thank you a 1000 times Reiny!
December 2, 2010

Pre-Calculus
It is well known that superman can withstand as much as 3 grams of Green Kryptonite indefinitely. However, exposure to more than 3 grams for more than 13 hours is fatal. Assume that Kryptonite decays at an hourly rate of 5.35% If superman is trapped in a room with 6 grams of ...
December 2, 2010

PRE-CALC
A drug is eliminated from the body through urine. Suppose that for an initial dose of 10 milligrams, the amount A (t) in the body t hours later is given by A(t) = 10(0.8) t a) Estimate the amount of the drug in the body 8 hours after the initial dose. b) What percent of the ...
December 2, 2010

Pre-Calc
Amount after time t A (t) = yobt Where: yo = starting amount b = growth constant (percent remaining) t = number of time units It is well known that superman can withstand as much as 3 grams of Green Kryptonite indefinitely. However, exposure to more than 3 grams for more than ...
December 2, 2010

thefacility
003048
December 1, 2010

the staff
003049
December 1, 2010

PHYSICS
Thank YOu!
November 29, 2010

PHYSICS
1)A picture of width 40 cm weighing 40N hangs from a nail by means of flexible wire attached to the sides of the picture frame. The midpoint of the wire passes over the nail which is 3 cm higher than the points where the wire is attached to the frame. Find the tension of the ...
November 29, 2010

Chemistry
A solution that has an osmotic pressure greater than that of red blood cells is called?
November 29, 2010

Chemistry
What is the concentration, in w/w%, of a solution prepared from 50.0 grams NaCl and 150.0 grams of water? I think it would be 25.0%, but I'm struggling with these new concentration calculations.
November 29, 2010

college, teaching
obstacles in the first year of teaching
November 27, 2010

Chemistry
Sodium oxide, reacts with water to give NaOH. A) Write a balance equation? B)What is the pH of the solution prepared by allowing 1.55 g of Na2O to react with 500.0 ml of water? (assume there is no volume change) C) How many milliliters of 0.0100M HCL are needed to neutralize ...
November 21, 2010

Verb tense
Dinnie does pay bills online each month.
November 21, 2010

health,safety and nutrition
Why health, safety and nutrition strategies are important ti identify and practice in an early childhood education programs.
November 20, 2010

English
The packet of biscuits has passed its expiry date or The packet of biscuits has past its expiry date. Or both sentences correct?
November 20, 2010

English
There is a host of reasons... or There are a host of reasons.... Which is correct?
November 20, 2010

physics
A person places the speakers 4.0 m apart and connects a signal generator to both speakers that produces a single and consistent tone. (constant wavelength and frequency) He then walks to a point that is 2.0 m from one speaker and 2.3 m from the other. At that point he notices ...
November 13, 2010

Chemistry-Please Help!
I have these 5 chemical equations and I keep getting the same 1:1 ratio on all of them. I must be doing something wrong! KCL + NaNO3 = KNO3 + NaCl HNO3 + KOH = H2O + KNO3 H2O + SO3 = H2SO4 4Na + O2 = 2Na2O 2NO2 = 2NO + O2
November 11, 2010

Chemistry
What would be the molecular ratio of the following equation? 2NO2 = 2NO + O2
November 11, 2010

algebra
write the slope-intercept equation for the line that passes through(4,3) and has slope 5/4.
November 9, 2010

FIT
Joe Nautilus has $120,000 and wants to retire. What return must his money earn so he may receive annual benefits of $20,000 for the next 14 years?
November 2, 2010

Statistics
What type of data must you collect to conduct a t-test? Why?
November 1, 2010

Algebra
Suppose you are at the gas station filling your tank with gas. The function C(g) represents the cost C of filling up the gas tank with g gallons. Given the equation: C(g) = (3.5)g a) Find C(2) b) Find C(5)
October 28, 2010

Physics
Also it's not 1800, it's 1/800 so it would be: .046kg * 44 = 2.024 2.024/(1/800) It should equal = 1619.2 Check your answer but that should be it, especially if they're asking you in units of N
October 27, 2010

Physics
Also it's not 1800, it's 1/800
October 27, 2010

English
With reference to an earlier question:- The liquid is to be scooped at a quarter of the depth of the container it is in. Hence the first sentence is correct? Or is there a better way of phrasing? The liquid should be scooped at a quarter depth of the container? Posted by ann ...
October 26, 2010

English
1)Please advise us on the status of our application. 2)Please advise the status of our application. Which sentence is correct?
October 26, 2010

English
The liquid is to be scooped at a quarter of the depth of the container holding it is in. Hence the first sentence is correct? Or is there a better way of phrasing?
October 26, 2010

English
The liquid should be scooped at a quarter depth. or The liquid should be scooped at a quarter depths. Which is correct?
October 26, 2010

English
"Your prompt action in providing the information by tomorrow would be appreciated." Is the above sentence correct?
October 24, 2010

English
Which sentence is correct? 1) Please provide the shelf life information on the following biscuits: - or 2) Please provide the shelf life information of the following biscuits: -
October 24, 2010

English
Is the following sentence correct? Please provide us with the requisite information on the product.
October 24, 2010

English
Please expedite in providing all necessary documents. Is this sentence grammatically correct?
October 23, 2010

AED 201
I think that is where I am confused to. It just says the first technological event in education and then the second for each time period. I have found one website that helped, im not sure if it is the correct information, but it only went up until 2000. I am still looking for ...
October 23, 2010

AED 201
I am looking for information on the use of technology in school. I need the 1st and 2nd event from 1980, 1990 and 2000. Ive been searching since yesterday. I do not want the answers, just pointed in the right direction. I guess im not searching right or something Thank you.
October 23, 2010

History
In their reporting of elections, the media tend to place cendidates and issues in the context of
October 21, 2010

Math
Explain how the digit 1 can have a different values in 111
October 21, 2010

math
which decimal has the highest number 4.1, 6.3, 0.31
October 20, 2010

Chemistry
Posted by ann on Sunday, October 17, 2010 at 4:26am. In melting point determination, why shouldn't a substance be re-melted? (i.e. why should we not re-melt a substance that has previously been melted in a melting point tube?)
October 17, 2010

Chemistry
In melting point determination, why shouldn't a substance be re-melted? (i.e. why should we not re-melt a substance that has previously been melted in a melting point tube?)
October 17, 2010

English
1) Minimize versus minimise. Which is UK English & which is US English? 2) After cleaning, all waste must be properly disposed of. Is this sentence acceptable?
October 16, 2010

Comm/155
I am trying to write a brief paragraph using five adverbs and five adjectives in describing my experience with credit and credit cards?
October 12, 2010

chemistry
A water containing 1x10^-4 mol CO2/L and having an alkalinity of 2.5x10^-4 eq/L has a pH of 6.7. The pH is to be raised to pH 8.3 with NaOH. How many moles of NaOH per liter of water are needed for this pH adjustment? (pK1=6.3 and pK2=10.3)
October 12, 2010

Chemistry
Is butyl paraben light sensitive?
October 9, 2010

computers
James was traveling for his job. The internet card provided by his company was not working and he had an important project due that day. James was in a small town about an hour away from the nearest internet kiosk, so he decided to drive around a nearby suburb to see if he ...
September 30, 2010

accounting
general ledger entry: sold $700 of merchandise (that had cost $220) on credit to Sam's Company.
September 26, 2010

social studies
what role did geography play in the economic success of new york
September 24, 2010

math
In this problem the letters x and y are each one digit numbers. Compare x+y O 19? Do I put any number for x and y ? please help. Your answer was no but how do I do this problem? I'm sorry, I mean <,>,or =. Thank You for your help.
September 22, 2010

math
In this problem the letters x and y are each one digit numbers. Compare x+y O 19? Do I put any number for x and y ? please help. Your answer was no but how do I do this problem?
September 22, 2010

math
In this problem the letters x and y are each one digit numbers. Compare x+y O 19? Do I put any number for x and y ? please help.
September 22, 2010

math
In this problem the letters x and y are each one digit numbers. Compare x+y O 19? Do I put any number for x and y ?
September 22, 2010

physics
A person leans over the side of a deep well and drops a stone that falls freely. After 1.0s she hears the splash of the stone striking the water at the bottom of the well. How deep is the well?
September 21, 2010

math
julie is thinking of an even number between 12 and 29 with digits whose difference is 7? what is the number?
August 24, 2010

Axia Math 117
I am of need of HELP. I am working on the word problems for AXIA math 117 and I do not understand the first problem. I have listed the information below. I have tried many times and I have not figured this out. My assignment is due tomorrow and I am desperate for help with ...
August 6, 2010

Nutrition, Health, and Safety for Young Children
What is a good purpose statement for discussing "why health, safety and nutrition strategies are important to identify and practice in an Early Childhood Education Program?
July 18, 2010

Math
Can someone please check this for mistakes please? y=4(x+3)-2x y=4x+3-2x y=2x+3 2x+3=y 2x=y-3 x=y/2-3 Hopefully I have rearranged the formula y=4(x+3)-2x to express x in terms of y.
July 7, 2010

algebra2
kathy bicyles 57 km/h faster than carlos. in the same time it takes carlos to bicyle 36 km. kathy can bicyle 57 km. how fast does each bicyclist travel? help please
June 27, 2010

algebra2
2 + 7 ______ xs power of 2 and x powqer of 2s
June 27, 2010

algebra2
the simlified product of this is? 10a power of 8.9r power of 4 _______ _____________ 3r power of 2 100a i dunno what to do?
June 27, 2010

algebra2
ty
June 27, 2010

algebra2
find the LCM 21z power of 7 and 63z power of 4? im not sure what im doing? help please?
June 27, 2010

math
Given the midpoint (8,14) and endpoint (-9,-1), find the other endpoint
May 25, 2010

physics
11.11....
May 21, 2010

science
how much heat does calcium oxide produce when dissolved in water?
May 17, 2010

chemistry
How much heat does calcium oxide produce when dissolved in water?
May 17, 2010

Calculus
Which vector is not collinear with vector a=[6,-4]? A: [3, -2] B: [-6, -4] C: [-6, 4] D: [-9, 6]
May 8, 2010

math
a boat crosses a river and arrives at a point on the opposite bank directly across from its starting position. The boat traveks at 4m/s and the current is 2m/s. If the river is 600 m wide in what direction must the boat steer and how long will it take to cross?
May 5, 2010

Check Calculus
What is the sum of 3 forces in equilibrium? Is it F3 = - (F1 + F2) or 0?
May 4, 2010

Check Calculus
What is the sum of 3 forces in equilibrium? Is it F3 = - (F1 + F2) or 0?
May 4, 2010

chemisty
what is the name of this substance K2Cro4
May 2, 2010

trig
please help me. use trig. identities to find the exact value. tan 25° + tan 5° / 1- tan 25° tan 5°
April 30, 2010

trig
please help me. use trig. identities to find the exact value. tan 25° + tan 5° / 1- tan 25° tan 5°
April 30, 2010

math
find real solution. 3+ the square root of 3x+1 = x
April 27, 2010

business
I am trying to answer some question for class I am needing to find and understand these theories can someone please explain them or help me find information on them I cannot find anything that I understand searching for these terms are they called some thing else please help ...
April 22, 2010

business ethics
I am trying to answer some question for class I am needing to find and understand these theories can someone please explain them or help me find information on them I cannot find anything that I understand searching for these terms are they called some thing else please help ...
April 22, 2010

ethics in management
I am trying to answer some question for class I am needing to find and understand these theories can someone please explain them or help me find information on them I cannot find anything that I understand searching for these terms are they called some thing else please help ...
April 21, 2010

math
how do i use the formula a=pe^rt to solve 15000. at 4.6% for 4yrs
April 21, 2010

Calculus
n(t) = 800/ (1 + 39e^-t) Where n is the number of students who have heard the rumour as a function of time, t, in days. What is the student population of the school? How long will it take for the rumour to reacglh half of the school's population? What dat was the rumour ...
April 20, 2010

Calculus
If log base a * b = 1/x and log base b * sq.rt a = 3x^2 show that x=1/6.
April 20, 2010

Calculus
Solve for x where 12^x = (4)8^2x
April 20, 2010

Physic
A person weighs 872 N in air and has a body fat percentage of 20.7%. a. What is the overall density of this person's body? b. What is the volume of this person's body? c. Find the apparent weight of this person when completely submerged in water.
April 18, 2010

financing
A firm has a current assets of $800,000, current liabilities of $600,000. The firm uses $200,000 of its cash balance to pay off a current liabilities. Calculate the current ratio before and after this transaction.
April 18, 2010

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