Questions Asked on
December 12, 2009

Math Help!!
A local tennis proshop strings tennis rackets at the tension (pounds per square inch) requested by the customer. Recently a customer made a claim that the proshop consistently strings rackets at lower tensions, on average, than requested. To support this

MathStatistics
Suppose you want to test the claim that mean is not equal 3.5. Given a sample size of n = 45 and a level of significance of a = 0.10, when should you reject H0 ? A) Reject H0 if the standardized test statistic is greater than 1.96 or less than 1.96 B)

physics
A steel ball rolls with constant velocity across a tabletop 0.950m high. IT rolls off and hits the ground +0.352m horizontally from the edge of the table. How fast was the ball rolling?

MathValue of Mean
A brewery has a beer dispensing machine that dispenses beer into the company's 12 ounce bottles. The distribution for the amount of beer dispensed by the machine follows a normal distribution with a standard deviation of 0.13 ounce. The company can control

Word problem
Plantets A, B, and C orbit a certain star once every 2, 5, and 12 months. If the three plantes are now in the same straight line, what is the smallest number of months that must pass before they line up again? I do not want the answer, I just do not

physics
Two rock climbers, Bill and Karen, use safety ropes of similar length. Karen's rope is more elastic, called a dynamic rope by climbers. Bill has a static rope, not recommended for safety purposes in pro climbing. Karen falls freely about 1.7 m and then the

game Theory
When the McDonald Corporation reduced the price of its Big Mac by 75 percent if customers also purchased french fries and a soft drink, The Wall Street Journal reported that the company was hoping the novel promotion would revive its US sales growth. It

5th grade Math
Kate is going to carpet her living room floor and drew the diagram shown. (I am not able to submit the drawn diagram. However I will try to describe) The diagram is a rectangle: It is 16 feet at the top showing a right angle at the top left and a right

English
Do you know about Mark Kastner, a writer? He wrote "Red Wolf Country." If you have some summary about the writer on the Internet, would you let me know about that? (What does 'Country' mean in his book? Does 'country' mean the opposite of 'town' or

HISTORY
WHO WAS THE SECRETARY IN THE THIRD SEMINOLE WAR?

Statistics
When red blood cells are counted using a certain electronic counter, the standard deviation (SD) of repeated counts of the same blood specimen is about .8% of the true value, and the distribution of repeated counts is approximately normal. For example,

math
how do you find a line perpendicular to another if the given line is in standard form, Ax+By=c? also, i need some help finding a line perpendicular to y=3 and crosses the points (2,4). help plz?

biology
does the cell theory state that cell come from cells that already exist?

Business Communication
I have to create a table that lays out a day by day plan to use as a job aid for my employment search, spanning three weeks and I don't understand how to do that. Can you help me?

physics
A toy car runed off the edge of a table that is 1.225m high. If the car lands 0.400m from the base of the car to fall, a)how long does it take the car to fall 2(1.225)/9.80=0.25=0.5s b)what is the horizontal velocity of the car?

Calc
Express the integral as a limit of Riemann sums. Do not evaluate the limit. ∫_1^3 x/(2+x^5) Ans: lim(n→∞)∑_(i=1)^n ?

Chemistry
What is the formula of a solid containing carbon that is a) molecular b)ionic c) network covalent d) metallic for these arent there more than one right answers? Also Describe the structural units in a) NaI b) N2 c) KO2 d) Au

Math
Fred was measuring the height of a building. He stood standing at some distance from the building and measured an angle of 38 degrees to the top of the building. He then walked 100 feet further away from the building and measured an angle of 34 degrees to

math/geometry
a. Describe the different types of planes of symmetry and axes of symmetry of a regular octahedron. b. How many planes and axes of symmetry does a regular octahedron have? c. Make a sketch and compare the symmetry properties of a regular octahedron and a

statistics
When red blood cells are counted using a certain electronic counter, the standard deviation (SD) of repeated counts of the same blood specimen is about .8% of the true value, and the distribution of repeated counts is approximately normal. For example,

Statistics
What is the SpearmanBrown coefficient and its relation to the test and retest reliability?

Maths
hello how do we convert a number into fraction for example : 1.75 = 7/4 0.111... = 1/9 .001=1/1000 how to solve that? please i need help! Thanks

Sets
A is a set of all letters in the alphabet and B is a set of vowels in the alphabet. What kind of relationship exists between the two sets? Also, if C is the set of consonants what is the relationship between B and C?

Health Information Technology
I need help with this problem I can not figure this out I had came up with five different answers and I really would like to get the correct answer. Memorial Hospital currently has 1,850 linear filing inches used. It is projected that over the next 5 to 8

psychology
I need to write a report using the 12 factors of human strengths. I am snowed in and for some reason my Adobe is silly. Can you tell me the 12 factors??

social studies
when did the Seminole Wars start?

education
I'm doing a power point on prek classroom. I need help finding a classroom arragment picture. Like how the room needs to be set up before a prek room open. I hope this makes sense.

Math
What's wrong with the argument that the probability of rolling, a double 6 in two rolls of a die is 1/3 because 1/6 + 1/6= 1/3?

chemistry
If I have 3.5 g/10ml of solute in a test tube, how much solute in g/100ml?

French
what does Je suis malade un peu, et tres beacoup fatigue mean?

Math
Which linear technique would be best to solve this problem? 3x/4 + 6 = 12

finance
I have worked and worked on this problem and came up with 2 different answers for b. and now am unsure of my answer for a. Problem 2: For each journal entry, prepare an explanation of the business event that is being represented: a. Loan payable $57,000

Math
My teacher asked us to take five photographs and then in each find four mathematical concepts. She wants us to go beyond the basics by not focusing on only shapes. Do you have any suggestions?

hca 240
these pathogens are responsible for the common flu and cold

Health
How many times does the heart beat per minute, day, and year?

docial studies
how did losing the french and indian war affect the postion of the french

social studies
what are the powers that had claims in noth american in the caribbean? in 1763 what two power dominated in the north america? what natural boundary separted british territory from lousiana?

Math
For which values is the relationship linear? Tell how you decided. Write the equation for each linear relationship x 5 10 15 20 25 30 y 20 30 40 50 50 50

PreCalculus
Solve for 0¡Üx

Chemistry
Calculate the volume occupied by 18g of water vapor at 100C at 1 atm. Show calculations

Math
Suppose that pizzas can be ordered in four sizes(small, medium, large and Illinisize), with three crust choices (thin, thick, and Chicago style), four choices of meat(sausage, pepperoni, hamburger, and none) and two tupes of cheese (regular or double.)

Math
On a TV game show, the contestant is asked to select a door and then is rewarded with the prize behind the door selected. If the doors can be selected with equal probabiltiy what is the expected value of the selection if the three doors have behind them a

Health
what is the average of heartbeats per minute, day, and year?

biology
does the cell theory state that cell come from cells that already exist?

11th grade
What were the diverse purposes of England's American colonies and how were these purposes altered in early years of settlement?

Math
The game of dots is played by rolling a fair die and receiving $1 for each dot showing on the top face of the die. What cost should be set for each roll if the game is to be consdiered a fair game?

AP Government and Politics
Hi, I have a debate in class about taxes. I have to prepare arguments why we do not need taxes, and create closing paragraph providing ideas why taxes are wrong, unfair, illegal, unconstitutional. Any ideas? thank you

biology
hey does prokaryotes cells have cell walls

Math
Which linear technique would be best to solve this problem? 3x/4 + 6 = 12 And which quadratic equation would be best for 4x^2=0 Thanks for any suggestions.

philosophy
o Which of the PreSocratic philosophers had the most compelling ideas? o Briefly summarize the philosopher’s idea or ideas. o Why do you find these ideas compelling? o Include a practical example of one of the philosopher’s ideas in your response.

Human /diseases
need help with an introduction on overview HIv/Aids

AP English
I have to write a comparative essay and I'm stuck on something. My topic is to discuss symbolism in Ethan Frome by Edith Wharton and The Story of One Hour by Kate Chopin. I have to explain the similarities between the two books by using symbolism. I chosen

math
find the product perform in simplified form (2x+1)(3x2)

algebra
sqrt x+25=0 solve the equation for x

algebra
sqrt 12x^3 . sqrt 3xy^2 perform the operation and simplify

Algebra 1
2x=2y+5 would you add 2x to the other side?

chemistry
simply by knowing the mass of an object and its chemical identity, one can determine the number of moles of any substance(S). without using any numbers (only units), write a general equation which will convert grams of "S" to moles of "S".

Chemistry
Below is the question and right after is my work. Problem: Excess fluorine (F2) reacts at 150 degrees C with bromine (Br2) to a compound BrFn (n = variable # i.e. n = 2 = F2). If 423 mL Br2 at 150 degrees C and 748 mmHg produced 4.20 g BrFn, what is n? My

chemistry
a student named KClO3 potssium chlorine(V) oxide. Explain why the use of the stock system is not correct in this case, and write the correct name of the substance.

geometry
Find the complement of „£B.

Physics
0.75 mol of argon gas is admitted to an evacuated 40 cm^{3} container at 40 C. The gas then undergoes an isochoric heating to a temperature of 500 C. Before I forgot to write the question...so the question is What is the final pressure of the gas? *

English
What is a fictionalized autobiography and a vernacular?

Banking
Here's a few questions I'm stuck on... What makes a stock liquid? A. the reputation and financial strength of the corporations that issue them. B. the fact that a secondary market exists for publicly traded stocks. C. the fact that they are generally short

Physics
70 J of work are done on the gas in the process shown in the figure. What is V_f in cm^3 ? I have a graph but I can't post it here. My values are W=70J P=200kPa which is 200000Pa I used the formula W=P(deltaV) then to get deltaV you do: deltaV= W(P) so i

physics =(
A person on a small, 7.00 meter high, hill aims a waterballoon slingshot straight at a friend hanging from a tree branch 4.00 meters above and 6.00 meters away. At the instant the water balloon is released at 7.00 m/s, the friend lets go and falls from

science
why are metals rather than ionic solids used in electrical wiring?

English III
Paine beleives that god will suport the colonies' cause because the colonists?

Math
Find the line for the above data. X:5,5,7,8,9,11,12,12,14 Y:3,8,5,7,11,10,15,19,20

spanish
how do you say the state for tourists in spanish?

french
Just asking one last time for some quick proofreading. I made several fixes and want to know if everything grammatically proper. Thanks for your time. : 1.BORIS:C'était une expérience effrayante. 2.IGOR: Oui. Nous étions muets à l'époque aussi, et

math
Given the !@#$%^&tion y = log3(x+3)+2, calculate the zero of the function. GIve an exact answer.

geometry
I am working on a geometry problem where I have to build a mobile of the quad. family. I have to state the properties of each figure. For a parallelogram I have 1. opp. sides are congruent 2. opp. angles are congruent 3. diagonals bisect each other and are

Computer/Excel
How do I write an IF formula for the following statement? **July’s budgeted expenses are based on the differences between the budgeted and actual expenses for June stored in column D. July’s budgeted expenses will be the same as those for June when the

History
Why do we need taxes? Could someone tell me in two paragraphs besides that we need it for roads and schools

computers/excel
How do I write an IF formula for the following statements? **July’s budgeted expenses are based on the differences between the budgeted and actual expenses for June stored in column D. July’s budgeted expenses will be the same as those for June when

english
Explain how rhythm, rhyme, and other sound effects,alliteration, assonance, onomatopoeia,can contribute to a poem's mood.

English
What does it mean when an author uses a chronological and necessarily episodic structure to keep their main character at the center of all action.

Business/general
Does the economy have a lot to do with how and what consumers are able to afford?

social studies
If there is collision between the president and Congress, can Congress restrain the president in foreign policy making?

Marketing
what is overall effectiveness of a good market strategy?

English
Is context clues the most valuable vocabulary strategy? Thanks.

spanish II
How do you say I like the hotel view in spanish?

social studies
What were the first four European countries involved in establishing colonies in the Americas?

algebra
Using the GaussJordan method need to determine the coefficients a,b,c of the quadratic equation x=ax squared +bx+c where y is degree of like and x is the percentage of sugar y=5.4 and x=8

Marketing/Business
What is the effectiveness of a good market strategy?

education
Write a 350 to 500word response to the following: You have the ability to choose three or four books for your students. Based on what you have learned in this course, how can you assess the level of bias and stereotypes in the contents of these texts?

geometry
Why is it impossible for a regular polygon with more than six sides to tesselate the plane? I know it has something to do with the angles, but I'm not sure what to write for this. 3 hexagons tesselate the plane and they have angles at 120, but why can't an

Business Fin
The market’s required return on Gitche Gumee Oil Company stock is currently 13.8 percent. If the expected return on the market portfolio is 12.6 percent and the riskfree rate is 3.5 percent, what is the beta of Gitche Gumee stock?

Physics
Two small loudspeakers that are 5.50 apart are emitting sound in phase. From both of them, you hear a singer singing C# (frequency 277 ), while the speed of sound in the room is 340 . Assuming that you are rather far from these speakers, if you start out

Math
The class average on a math quiz was 74 and the standard deviation was 6.8. Find the zscore for a test score of 82.

Language Arts Extra Credit
What is llatetpsh unscrambled. I seriously need extra credit

math 9th
If RS= 20, UT = x + 10, RU = y + 3, and ST = 15, find the values of x and y. x = 10, y = 12 x = 30, y = 18 x = 5, y = 17 x = 23, y = 25 Cant figure this out just explain, try not to give me the answers!!! P.S. you guys and gals are incredible, very nice!!!

social studies
what are the factors that led to the enclosures in england

algebra  quadratics
If Terry hiked 0.5km/h faster, he would have taken 1h less to complete a 15 km hike. What was Terry's hiking speed?

English
1. My grandma started to write history books at age 76. 2. My grandma started to write history books at the age of 76. 3. My grandma started to write history books at aged 76. 4. My grandma started to write history books when she was 76 years old. 5. My

English
1. We will lead your children to the joys of reading. 2. We will lead your children to the joy of reading. 3. We will lead your children to joy of reading. (Which expressions are grammatical? Are both acceptable?) 4. I learn many things in class from her

English
1. I will go to a concert this evening. 2. I shall go to a concert this evening. 3. I intend to go to a concert this evening. (What does Sentence 1 mean? Does #1 mean #2 or #3?) 4. I will give you the fountain pen. 5. You shall have the fountain pen. 6. He