Wednesday
April 16, 2014

Posts by TRACEY


Total # Posts: 125

science
Why scientists used only mice from the same pure-bred strain is so that

business studies
i enjoy learning abt the forms of partnerships in a business to be an entrepreneur

math
an airplane climbs at a rate of 66.8 feet per minute. It descends at twice the rate that it climbs. Assuming it descends at a constant rate, how many feet will the aitplane descend in 30 minutes.

english
explain how content purpose and audience and tone impact academic writing. not good in writing papers

algebra - absolute value
i'm doing absolute value in open sentences and then graphing them. how would you solve |t-4| > t-4 ?

Absolute Value in Open Sentences
For the problem |t-4|>t-4 how would you graph it?

Pre-cal
Two lookout towers are situated on mountain tops A and B, 4 mi from each other. A helicopter firefighting team is located in a valley at point C, 3 mi from A and 2 mi from B. Using the line between A and B as a reference, a lookout spots a fire at an angle of α = 37° ...

reading
story was a little confusing... can someone give me a plot summary of Milk by Ron Carlson

algebra
A stone dropped from rest travels 160 ft the first 3 seconds. How far will it have fallen at the end of 5 seconds?

Chemistry
moles = grams/mol. wt. 4.141g/119mol.wt. = 0.03479832g

physical science
a 70 kg man and 50 kg woman are in a boat when its motor fails. the man dives into the water with a horizontal speed of 3 m/s in order to swim ashore. if he changes his mind, can he swim back to the boat if his swimming speed is 1 m/s? If not, can the woman change the boats mo...

physical science
a yo-yo is swung in a vertical circle in such a way that its total energy KE and PE is constant. At what point in the circle is this speed maximum? A minumum? why? (b) if the yo-yo has a speed of 3 m/s at the top of the circl, whose radius is 80 cm, what is tis speed at the bo...

physical sciencei
is the work needed to bring a car's speed from 0 to 10 km/h less than, equal to or more then the work needed to bring its speed from 10 to 20 km/h? if the amounts of work are different, what is the ratio between them?

physical science
a weightlifter raises a 70 kg barbell from the floor to a height of 2.2m in 1.2s. What was his average power output during the lift?

physical science
a 1kg object has kinetic energy of 1J when its speed is?

Math
If it takes 3.7 seconds for a sound to reach the bottom of the ocean how deep is the water

Math
If it takes 3.7 seconds for a sound to reach the bottom of the ocean how deep is the water

physical science
the 200g head of a golf club moves 40 m/s in a circular arc of 1.2m radius. How much force must the player exert on the handle of the club to prevent it from flying out of her hands at the bottom of the swing? ignore the mass of the clubs shaft.

physical science
a force of 20 N gives an object an acceleration of 5 m/s2. (a)What force would be needed to give the same object an acceleration of 1 m/s2. (b) what force would be needed to give an accelerattion of 10 m/s2 ?

physical science
the acceleration of gravity on the surface of venus is 8.9 m/s2. would a ball thrown upward from venus return to the ground sooner or later than a ball thrown upward with the same speed on the earth?

math
f(17)=12 f(7)=6 f(x)=?

Honors Geometry
Topic: Distance in Coordinate Plane Determine the value(s) of n if... J(n, n+2), K(3n, n-1), JK=5

Business
Envision that you run a highly successful tattoo and piercing parlor in a small West Coast city. You are fairly certain that between you and your key competitor, you have saturated your target audience of people in their teens and 20s. To grow your business, you need to reach ...

physical science
how many square feet are there in an area of 1.00 square meters( 1 ft.=0.305)? use the proper number of significant figures in the answer.

science
describe the efficiency of energy tranfer and how the amount of energy available at each trophic level affects the structure of the ecosystem>

statistics
Suppose X has a mound-shaped distribution with sigma=9. A random sample of size 36 has a sample mean 20. Is it appropriate to use a normal distribution to compute a confidence interval for the population mean u?

algebra
The area of a state is 7 times the area of another state. the sum of the areas are 32,000,000. what is the area of each state

college algebra
Determine the principal P that must be invested at rate r = 3 1 2 %, compounded monthly, so that $700,000 will be available for retirement in t = 13 years. (Round your answer to the nearest cent.) P = $

Chemisty
If 59.0 mL of 0.40 M HI is mixed with 100. mL of 0.10 M KOH what is the resulting pH?

Chemistry
A buffer containing 0.2832 M of acid, HA, and 0.1504 M of its conjugate base, A−, has a pH of 2.36. What is the pH after 0.0015 mol NaOH is added to 0.5000 L of this solution?

macroeconomics
if retiree benefits were frozen what would happen to total expenditures

Economics
One year ago, you bought a bond for $10,000.00. You received interest of $400.00 at the end of the year, as well as your $10,000.00 principal. If the inflation rate over the last year was five percent, calculate the real return. Show your work.

science
Ho many millilitres of sucrose is needed to make 25 L of liquering soluton at 20% v/v

science
How many grams of copper sulfate is needed to make 1125L of 25 ppm solution

science
If 100g of CuSO4 took part in the following reaction how much Cu(0H)2 would be formed CuSO4 + 2NaOH to Na2SO4 + Cu(OH) 2

science
If 20g of Ca(0H)2 took part in the following reaction, how much CaCl2 would be formed. Ca(0H)2 + 2HCl to CaCl2 +2H20

comm/155
how to start the paper off in using all 4

Math
3x² - 4 = 23

Science
As the angle between the direction of the applied force in the direction of movement increases from zero to ninety what happens to the fraction of the force that contributes to the work?

history
what is vigilantism and how and when does it arise? (political philosophy)

history
What system of government did Plato recommend in The Republic?

history
The three main ideals that all political systems strive to achieve are freedom order and equality. Why do these values compete with one another?

MATH
Five cards are dealt from a well-shuffled standard deck. using combinations, write an expresssion for the probability all are hearts

MATH
Five cards are dealt from a well-shuffled standard deck. using combinations, write an expresssion for the probability all are hearts

MATH
From a standard deck of cards, two cards are randomly drawn, one after the other without replacement. The color of each car is noted. Which is less likely to occur: two red cards or a red card and a black card? Explain.

hum/176
Overview of themes of the impact of the internet on politics

elementary statistics
how many seven digit telephone numbers are possible if digits can be repeated?

english
Which version of the American Dream is more realistic, Jay Gatsby or Tom Joad?

MATH
You purchased 150 ft. of chain that normally sells for $0.15 per inch. You were charged $22.50 for the sale. Was the price correct? If not, what is the correct price and what mistake was made?

math
Volume of Aluminum Foil. One cubic centimeter of aluminum weighs 2.7 grams. If a piece of aluminum foil weighs 5.4 grams, find the volume of the aluminum foil.

math
Class has 28 students. 23 like basketball. Also, 15 like baseball. 12 like both. How many students do not like either.

Math
If the following amounts of lumber need to be delivered to 2 different staging areas at 4 different job sites, how many total boards of each size will you need? 1.65:2x4s 2.45:2x8s 3.25:2x10s How to work this problem.

geometry
ab=21, bc=14,and ad=54

FAST MATH HELP
Thanks so much Jasper:)

FAST MATH HELP
Need help problem solving-- A 500 space parking lot is packed with motorcycles and passenger cars, with only one vehicle in each space. How many motorcycles & cars r there if the total number of tires on the parked vehicles is 1650? I think I have to do this in some kind of eq...

Math
Need help problem solving-- A 500 space parking lot is packed with motorcycles and passenger cars, with only one vehicle in each space. How many motorcycles & cars r there if the total number of tires on the parked vehicles is 1650? I think I have to do this in some kind of eq...

Math
Thanks helper:)

Math
Need help problem solving-- A 500 space parking lot is packed with motorcycles and passenger cars, with only one vehicle in each space. How many motorcycles & cars r there if the total number of tires on the parked vehicles is 1650? I think I have to do this in some kind of eq...

math
which of the following repressents an irrational number? 1/2 16 8 .36

Drug Information Sources
I am about to submit my answers to PennFoster for this exam and wanted to ck ONE question to see if I was correct. My first thought when I came across this was "take your own damn test" and EVEN after reading your "reason" for posting the ENTIRE test,I stil...

PHYSICS
what is the different between a scalar and vector?

science
what is the relationship between a scientific law and scientific theory? what is the difference between a hypothesis and a theory?

Business Algebra
Part I: As a financial planner a client comes to you for investment advice. After meeting with him and understanding his needs, you offer him the following two investment options: Option 1 (refer to section on Mathematics of Finance in your text.): Invest $23,000 in a savings ...

PHYSICS
which has more inertia, a mouse or elephant?

PHYSICS
Search: a 1.0 kg mass weighs 9.8 n on earths surface and the radius of the earth is roughly 6.4x10 to the 6 m. what is the mass of the earth and the average density of Earth

physics
A projectile is launched straight upwards at 45 m/s. Three seconds later, its velocity is A. 75 m/s B. 30 m/s C. 15 m/s D. zero

Physics
Two spheres A and B, where A has twice the mass of B, are projected at the same horizontal velocity off the edge of two different height shelves. Sphere A leaves from a height of 2.0 m. Sphere B leaves a shelf 1.0 m off the floor. If both spheres leave the edge of the table at...

chemistry
how many moles of butane gas c4h10 react to produce 3.50moles of water?

budget and forecasting
Using the table “Gasoline Sales Time Series”, calculate the forecast for gasoline sales (in thousands) for Week 13 using a three day moving average. Gasoline Sales Time Series Week Sales (000’s of gallons) 1 17 2 21 3 19 4 23 5 18 6 16 7 20 8 18 9 22 10 20 11 15...

Finance
Part I: As a financial planner a client comes to you for investment advice. After meeting with him and understanding his needs, you offer him the following two investment options: Option 1 (refer to section on Mathematics of Finance in your text.): Invest $23,000 in a savings ...

Economics
Current Yield - $2/$50 = 4% Capital Gains - ($53-$50)/50 = 6% Return: - 4% + 6% = 10% Hope this helps.

Economics
Suppose that the price of a stock is $50 at the beginning of a year and $53 at the end of the year, and it pays a dividend of $2 during the year. Calculate the stock’s current yield, capital-gains yield, and the return. Show your work for three separate calculations.

Economics
One year ago, you bought a bond for $10,000. You received interest of $400 at the end of the year, as well as your $10,000 principal. If the inflation rate over the last year was five percent, calculate the real return. Show your work

Economics
Explain how an economist could use the slope of the yield curve to analyze the probability that a recession will occur and why the spread may matter.

chemistry
what is the volume occupied by 0.118 mol of helium gas at a pressure of 0.97 atm & temp of 32 C? R= 0.0821 L atm/mol K

Chemistry
DrBob222 - can you set up the equation for the volume problem, i don't have a clue... Is this Charles Law? I know how to change C to K you add 273, but I don't know what figures go where in this formula PV=nRT......

chemistry
DrBob222 - for molar mass do you use significant figures? If so would the answer be 0.05 (3.55/65.39)3.55 has 3 SF's correct?

chemistry
Write and balance the chemical reaction when gaseous carbon monoxide reacts with hydrogen gas to form gaseous methane (CH4) & liquid water

chemistry
What is the volume occupied by 0.118 mol of helium gas at a pressure of 0.97atm and a temperature of 32 degrees celius? R=0.0821 L atm/mol K

chemistry
Calculate the molar mass of baking powder (NH4)2CO3

Chemistry
What is the amount in moles of 3.55g of zinc(Zn)

Social studies
How did the Peace of Augsburg affect the Catholic Church?

math
find the unit rate 68 mi on 2 gal

Chemistry
Consider the following electron configuration. (σ3s)2 (σ3s*)2 (σ3p)2 (π3p)4 (π3p*)4 Select four species that, in theory, would have this electron configuration.

francais
Please could you proof read my work. Thanks J'essaie de manger sainement, je mange 3 ou plus de fruit et légumes et un morceau de chocolat tons les jours. J'adore le fromage mais je connais gras. J'aime boire l'eau parce que saine. J'exerce ré...

college
what are some of the changes the United States has made to policies concerning treatment of muslims and arabic members of society

Physics
Q: From the Bohr model of the Hydrogen atom, calculate the minimum amount of energy (in eV) an electron in the lowest orbital would need to free it from its proton (i.e., to ionize the atom). A: would I use the equation: En = - 13.6 / (n^2) ? If so, an an electron in its groun...

Romeo and Juliet Quotation Help
That is Benvolio speaking to Lord Montague in Act I Scene I line 135;however, its wording varies accoring to publisher/translater. I'm an English teacher

Keyboarding and word process
Does anyone has the answers to penn foster exam # 01392800?

Introduction To Teacher Aide
i just took the test!! 1.a 2.a 3.c 4.b 5.a 6.b 7.c 8.a 9.b 10.d 11.b 12.d 13.c 14.d 15.a 16.c 17.b 18.b 19.b 20.b

Introduction To Teacher Aide
1.a 2.a 3.c 4.b 5.d 6.b 7.c 8.a and that is all the further i got so far but these are the right answers cuz i looked them up in the book!

Human resources management
17. Andy Liu is employed by National Electronics Company. He works on a team that manufactures the company’s best-selling TV from start to finish. Andy belongs to a _______ team. A. self-directed C. process-improvement B. project D. cross-functional

college
An HR manager’s duties can be grouped into the following categories: advice and counsel, service, policy formulation and implementation, and employee advocacy. In practice, these activities often overlap. For example, time spent counseling an employee who is having diffic...

college
Not understanding?

college
Biographical information blanks are difficult for applicants to fake because A. the questions don’t have predictable, correct answers. B. they require detailed answers. C. they’re administered by extremely knowledgeable interviewers. D. applicants are required to res...

Social Studies
How was/is the law and order kept in the society? We're learning about the government of Ancient Rome. Full Question: How was/is the law and order kept in the society of Ancient Rome and how did the government ensure the society would follow the law?

Science
It is volume. Am I supposed to divide mass by volume to get density or mulitply?

Science
So i divide 25 cm3 by 50 g to get 2?

Science
an object has a colume of 25 cm3 and a mass of 50g. Antoher object has the same volume of 25 cm3 and a amass of 75 g. Caluculate the densities of both objects. Show all work. INclude the correct unites with your answer.

Science
differences between high-quality matter and low-quality matter, and give an example of each. Ok I have looked highand low and really can not find anything on this do you know of a web site maybe I could find out I really need to get this done and you all have come through so m...

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