Questions Asked on
March 16, 2010

math
Which has the lower unit price? Soap. brand A:$1.34 for 3 bars. brand B:$1.44 for 4 bars. i think it is b.
asked by candance 
math
Betty bought 105 ft of fencing to enclose a vegetable garden in her backyard. The garden is to be a rectangle, twice as long as it is wide, with a fence across the middle parallel to the width. What should be the dimension of the garden in feet?
asked by Bank 
math
Erin takes a total of 5 hours in her boat to travel a distance upriver and return downriver the same distance. If the time traveling upriver is twice the time traveling downriver, how many hours does each trip take? How do I put this into two equation and
asked by Lauren 
chemistry
grams of sodium chloride dissolved in 100mL of water at 20 degrees celcius
asked by ace2 
Math
Find A �� B, given A = {people who are less than 20 years old} and B = {people who have a job}. A) {people who are less than 20 years old and people who have a job} B) {people who are less than 20 years old and have a job} C) {people who are
asked by Lisa 
chemistry
At 2200 degrees celsius,kp=0.050 for the reaction: n2(g)+O2(g) >2NO(g)
asked by Anonymous 
English
what does "explain why this character's ... is significant to the meaning of the work of literature" mean?
asked by Ana 
communications
What are personal conflict management styles
asked by sally 
Math(Please help)
1)tan Q = 3/4 Find cosQ 3^2 + 4^2 = x^2 9+16 = sqrt 25 = 5 cos = ad/hy = 4/5 Am I correct? 2) Use the sum and difference identites sin[x + pi/4] + sin[xpi/4] = 1 sinx cospi/4 + cosxsin pi/4 + sinx cos pi/4  cosx sin pi/4 = 1 2 sin x cos pi/4 =1 cos
asked by Abbey 
PreCal(Please check)
1)f(x) = x + sqrt 4  x^2 Find f(2) (2) + sqrt 4  (2)^2 = 2 + sqrt 4 + 4 2 + sqrt 8 = 4.828 Is this correct?
asked by Hannah 
statistics
in certain manufacturing processes parts must be machined tonwithin specified tolerences. the parts must have a mean length of of six inches plus or minus 0.26 inches .A SAMPLING PROCEDURE HAS BEEN ESTABLISHED to determine wether the ten parts are within
asked by deedee 
math
The largest bubble chamber in the world is 15 ft in diameter and contains 7259 gal of liquid hydrogen at a temperature of 2247°C. If the temperature is dropped by 11°C per hour for 2 consecutive hours, what is the new temperature
asked by kirk 
math
The greatest recorded temperature ranges in the world are around the “cold pole” in Siberia. Temperatures in Verkhoyansk have varied from 294°F to 98°F. What is the difference between the high and low temperatures in Verkhoyansk?
asked by kirk 
math
On each of four consecutive plays in a football game, a team lost 11 yd. If lost yardage is interpreted as a negative integer, write the information as a product of integers and determine the total number of yards lost.
asked by kirk 
math
If Jack Jones lost a total of 66 yd in 11 plays, how many yards, on the average, did he lose on each play?
asked by kirk 
Calculus 2
i need to find the amount of gallons of different water heights on a Horizontal tank with Elliptical CrossSections minor axis height is 4 minor axis length is 6 tank length is 16
asked by Kyle 
Calculus 2
i need to find the amount of gallons of different water heights on a Horizontal tank with Elliptical CrossSections minor axis height is 4 minor axis length is 6 tank length is 16
asked by Kyle 
English  oral
How to structure a 1 minute speech. I have to write it on an achievement i had. My one is a sports 1st place ribbon. PLEASE HELP!!!!
asked by Millie 
cjs 200
What are intermediate sanctions , their purpose in the criminal justice process, and their function as a sentencing alternative?
asked by Anonymous 
math
What are the number in the magic square of 4 by 4 if the magic number is 38?
asked by JJ 
window server 2003
. If you are performing a full backup each Friday to a single tape and a differential backup to a single tape on all other days of the week (including the weekend), what is the minimum number of tapes required to accommodate seven days worth of backups? a.
asked by mike 
English
How do I write a paragraph naming three possible agendas and one example of each that you might find in the media?
asked by Betty 
social studies
Why did the us need a protective tariff
asked by m 
Thermodynamics
a worker cleans a railroad car with steam of 15000ft^3 car on inside, t=240F P=14.7psia of steam. the car is closed. the steam inside cools until P=12 psia, at which time salad oil is added to tank. find a. heat transfer from steam during cooling, b.
asked by spencer 
8th grade science
A glass of water is placed on a very sensitive scale and several antacids tablets are dropped into the water. The weight of the glass and its contents is less after the tablets dissolve than before the tablets dissolved. Tell how matter is conserved ?
asked by Michaela 
business
Which of the following is the most important step to help improve America's business ethics
asked by Anonymous 
quantitive literacy
Select an investment plan for a family with a child that is x years old and has y dollars to invest. How can I make this into two different equations to be graphed?
asked by timothy nies 
college
Smokey the Bear celebrated his 65th birthday this year. Why has the message of the forest service that “only you can prevent forest fires” changed in recent years to allow more fires?
asked by Natalie 
physics
A stubborn, 120 {\rm kg} mule sits down and refuses to move. To drag the mule to the barn, the exasperated farmer ties a rope around the mule and pulls with his maximum force of 800 {\rm N}. The coefficients of friction between the mule and the ground are
asked by norm 
Physics
If you are wearing a watch, what energy changes are taking place in it right now?
asked by AJ 
english
I am doing a 10001500 word contrast/comparision essay. This is what I have so far. Could you tell me if this is good enough. This is part of the body. My neighbours, Sharon and Shelley both have two children each. Sharon has two beautiful girls with long,
asked by deborah 
college
Explain the relationship between program planning and grant proposals. When describing each component, address their similarities and differences as well as how they relate to each other.
asked by Konnie 
Finance
When changes occur in the assets of a business, these changes are reflected in the asset values reported on the balance sheet. Quite often, purchases of equipment, machinery, buildings, and property are necessary. How can purchases add value to the
asked by Terri 
math 30 conics
Hi i was given the equation (y2)^2  x^2/4 =1. I need to find the center, vertices and asymptotes of this hyperbola. I found the center (0,2) and the vertices were tricky but I think they are (0,1) (0,3) but I'm having trouble finding the asymptotes. Can
asked by Tye 
3rd grade math
Write an expression that equals 468 that includes a combination that adds up to 100
asked by Megan 
math
if logx y=2, whic of the following is true?
asked by ray 
trigonometry ?
A cottage under construction is to be 15.6m wide. The two sides of the roof are to be supported by equal rafters that meet at a 52 degree angle. Determine the length of the rafters to the nearest cm using a) the cosine law b) the sine law I am not
asked by deborah 
Calculus
PLEASE HELP Find the equation of the line through the point (3,4) which cuts from the first quadrant a triangle of minimum area.
asked by Santha 
Healthcare Administration
Suppose you’re the head of CMS. CMS is now offering reimbursement for wheel chairs suppliers. What would happen if you decide to decrease the reimbursement for wheel chair suppliers?
asked by Mary 
Chemistry
How would each of the folowing affect the accuracy of the calculated neutralizing power of the antacid (too high, too low, no effect)? Explain why. a) Titration flask was wet with distilled water b) The burette was initally not rinsed with 0.10M NaOH and
asked by Anonymous 
Physics
An ice cube is placed in a microwave oven. Suppose the oven delivers 105 W of power to the ice cube and that it takes 32,200 J to melt it. How long does it take for the ice cube to melt?
asked by John 
Healthcare
Give three examples of asymmetric information in which the health consumer has information that is unavailable to the health provider.
asked by Elizabeth 
physics
A silver wire has resistance of 2.1ohms at 27.8 degree celsius and resistance of 2.8ohms at 98 degree celsius. Determine the temperature coefficient of resistance of silver wire and its resistance at zero deg.
asked by Edwin 
physics
The electrical motor runs on a D.C source of emf E and internal resistance r. Show that power output of the motor is max where current drawn by the motor is E/2r.
asked by Edwin 
social studies
why secondry social organisation considered to be complex social organisation.
asked by aliyu 
physics
A 24V battery of internal resistance of 10ohms is connected to a variable resistor. At what value of current drawn from battery the rate of heat produced by the resistor is maximum? Hence find its value.
asked by Edwin 
physics
Think of the mass hanging from the spring in Q2. If one pulls the mass down by 'y' amount and lets go, how far up past the equilibrium point does the mass go before coming to a stop?
asked by Anonymous 
us history
how were the truman doctrine and the marshall plan relevatn to the american foreign policy goal of containment?
asked by Cassie 
math 30
Help please i need to write 4x^2 y^2 8x 4y +16 =0 in standard form.4x^2 8x  y^2 4y=16 so 4(x^2 2x +1)(y^24y+4= 16 4 +4 so 4(x1)^2/16 (y2)^2/16 =1 so (x1)^2/4 (y2)^2/16 so if I multiply everything by 1 it will get rid of my () on the
asked by Sandy 
Healthcare
Give three examples in which the health provider has information that is unavailable to the health consumer.
asked by Elizabeth 
Science
What is something that I can compare an animal or plant cell to? I need to draw something that works similarly to a cell. For example, an amusement park or something.
asked by Mike 
math
solve tang3x+1=sec3x
asked by ruben 
Chemistry
Which test for iron(II) ions is conclusive?
asked by Dan 
algebra
1. You have recently found a location for your bakery and have begun implementing the first phases of your business plan. Your budget consists of an $80,000 loan from your family and a $38,250 small business loan. These loans must be repaid in full within
asked by sally 
math
x+3=5 x+4=9
asked by navila 
fairtrade
i need to do an pursuasive peice of writing on fairtrade help
asked by Anonymous 
Health
In the market for health insurance, what kind of asymmetric information causes adverse selection? Explain.
asked by Elizabeth 
Stuck on 3d  Math
Suppose you’re thinking about buying a used car, but you’ve become worried about the selection problems. In this market, the seller of each car knows the true value, but the buyer can’t determine the value until after purchase. Assume that there are
asked by Amal 
teasers
i have streets but nopavemet i have cities but no bulidings i have rivers yet no water what am i
asked by emma 
Math 12
I need to write this parabola question 2(x+3)^2 1 in general form. Not sure how to do it. Do I sqaure whats in brackets first? x^2 + 6x +9 then *by 2 so 2x +12x +18  1 = 0 Would this be the answer or am I doing it wrong? Any help appreciated.
asked by Ray 
math
What is the value of the ycoordinate of the solution to the system of equations x + 2y = 9 and x  y = 3?
asked by billy 
12th grade
Find the equation of the line through the point (3,4) which cuts from the first quadrant a triangle of minimum area.
asked by Santha 
Biology Research Paper
'We are currently in an energy crisis. After food, fossil fuels are humanity's most important source of energy. These resources take millions of years to make. We are currently using the fuels that were made more than 300 million years ago, before the time
asked by mysterychicken 
calculus HELP URGENT
Find the equation of the line through the point (3,4) which cuts from the first quadrant a triangle of minimum area.
asked by Santha 
chemistry
before beginning a titration, the burnet was not clean. after completing the titration,the student noticed that droplets of the titrant were clinging to the inside surface of the barrel.wolud the molarity be too high or too low?
asked by Anonymous 
biology
Suggest how the active transport of glucose out of the cell and into the bloodstream helps with the absorption of glucose from the small intestine. (2 marks)
asked by nabiha 
science
I am doing a project on the Silurian time period and we need to know some organisms that were created during the time and some that went extinct. I found a bunch that were created but i didn't find any that went extinct!! Help!!
asked by Emily 
geometry
What is the volume of a cone with a radius of 3 and a height of 19?
asked by Brad 
SCIENCE
Didn't mean to ask but i was really curious and didn't get an answer from researching.Why is physics necessary in becoming a dentist?
asked by DEVAUGHN 
statistics
Basic Concepts of Probability and Counting 1. License plates are made using 3 letters followed by 2 digits. How many different plates can be made if repetition of letters and digits is allowed? (26^3)(10^2) = (17576)(100) = 1,757,600
asked by Looking for someone to check my answer 
Insurance
Describe the costs and benefits to society from purchasing insurance.
asked by Mandy 
Chemistry
What is the colour of: 1. Cu+ 2. Cu2+ 3. Cu3+?
asked by Alan 
spelling
I believe our families are both related to George Washington. What a surprising occurrence! I believe our familys are both related George Washington. What a surprising ocurrence! Is the spelling right on either sentence.
asked by Anonymous 
statistics
Question: In 2001 the stock market took some big swings up and down. One thousand investors were asked how often they tracked their investments. The table below shows their responses. What is the probability that an investor tracks the portfolio monthly?
asked by Looking for someone to check my answer 
apche,m
what is the density of vinegar? thanks
asked by urgent 
Math
Can someone please explain (cos(x)+sin(x))/(cos(x)sin(x)=sec(2x)+tan(2x). I have no luck with this. Thanks
asked by Matt 
apchem
what is the density of vinegar? thanks
asked by urgent 
math
Alex bought lemons that were priced at 2 lemons for 18¢. What was the total cost of 5 lemons?
asked by betsie 
Algebra
Simplify the complex fraction m^1+z^1 _________ m^1 z^1
asked by Anonymous 
math
csc(2x)=0.5sec(x)csc(x)
asked by do 
marketing 401
Organizational Values 1. Mention an organization of your choice that displays excellent values, that orient it for growth. What do you see these values as being? How do they lead to a growth orientation? Think of any organization you want to for this
asked by cynthia 
math
using the formula h(x) = 1.95 x + 72.85. Find the height of a female whose femur is 35 cm long x=length and H=height.
asked by Maryann 
english
I want to stay that a women is a handsome women but I cannot think of another word for handsome. I do not want to put pretty etc. as this is in not what I am trying to say. Hope you can help.
asked by janae 
College Physics
During a rescue operation, a 5600kg helicopter hovers above a fixed point. The helicopter blades send air downward with a speed of 69 m/s. What mass of air must pass through the blades every second to produce enough thrust for the helicopter to hover?
asked by Kyle 
College Physics
Two 72.0kg hockey players skating at 7.00 m/s collide and stick together. If the angle between their initial directions was 130 degrees , what is their speed after the collision?
asked by Kyle 
College Physics
You are holding a shopping basket at the grocery store with two 0.69kg cartons of cereal at the left end of the basket. The basket is 0.90 m long. Where should you place a 1.8kg half gallon of milk, relative to the left end of the basket, so that the
asked by Kyle 
personal finance
Nathaniel has three different insurance policies.He has been injured in an accident and has incurred $30,000 in medical bills.There is a clause in all of his insurance contracts that makes sure he receives no more than $30,000 in payments from his
asked by vedrana 
statistics
I don't know where to start with this one. What is the formula and how do I go about answering this? Question: If one of the 255 subjects is randomly chosen, what is the probability that the person prefers orange juice, given they are over 40? Round your
asked by Looking for someone to check my answer 
Chemistry
Determine the moles of ammonia in the following cobalt ammine complex: A sample of .1500 g of the cobalt ammine complex is places in a flask and 25.00mL of .200M HCL is added. a few drops of bromocresol green is added and the titration with .100M to NaOH
asked by james 
world history
Which has been a major change resulting from the industrialization of Western Europe? 1.increased social mobility 2.increased political power for the nobility 3.shrinking of the influence of the middle class 4.shift in wealth from northern to southern
asked by mary 
Chemistry
Cu(NH3)2^+ is a colourless compound. Will there be any absorbance at 600nm?
asked by Alan 
algebra
what is 3y(7y  6) + 16y simplified
asked by tyler 
chemistry
What are the probably products of... a) an aqueous solution of two ionic compounds b) a single compound c) two elements d) oxygen and a compound of carbon and hydrogen ?
asked by Bob 
geometry
Two sides of a triangle measure 2x – 4 and 7x – 2 units, respectively. Which of these is a possible length for the third side of the triangle?
asked by MARY 
statistics
Question: The table below shows the drinking habits of adult men and women. Men Women Total NonDrinker 387 421 808 Occasional Drinker 45 46 91 Regular Drinker 90 69 159 Heavy Drinker 37 34 71 Total 559 570 1,129 If one of the 1,129 people is randomly
asked by Looking for someone to check my answer 
MATH
WHY DID THE TEACHER TEACH ADOLESSON
asked by Brakenette 
statistics
Question: The table below shows the drinking habits of adult men and women. Men Women Total NonDrinker 387 421 808 Occasional Drinker 45 46 91 Regular Drinker 90 69 159 Heavy Drinker 37 34 71 Total 559 570 1129 If one of the 1,129 people is randomly
asked by Looking for someone to check my answer 
algebra
I am greater than 15 and less than 40 If you double me I become a number that ends in 0 and of me is equal to 5 [Click to preview algebra format]
asked by Chelsea 
math
whare are the scale and interval in a frequency table? I don't understand what they mean. On my table there's a weight, how many times something weighs that and the tally 00 and the frrequency
asked by Julie 
Math
Write an equation to describe the variation. Use k for the constant of proportionality. x varies directly as the square of y and inversely as z
asked by Anonymous 
math
double my tens digit to get my ones digit. double me and i am less than 50
asked by christian 
computers
Develop an algorithm or write a pseudocode that accepts as input the names of an unspecified number of students who each have rented books form the school's book program and are now returning them.
asked by Anonymous 
Chemistry
1x102 mol of MgSO4 (Ksp = 9) is added to 1 L of water. Will 1x105 mol of CaSO4 (Ksp = 106) completely dissolve in the solution? I think the answer is yes...because the Q will be less than Ksp of 10^6?? Which of the following salts would you expect to
asked by Trixie 
biology
in humans, the genotype XX results in a ____ any help, please?
asked by Marina 
us history
Progressivism was the first national reform movement that set out to resolve social problems without the aim of overturning the government. What tactics did progressives employ to influence the government at all levels? Why were progressives so successful
asked by Anonymous 
Algebra
While traveling in a car, the centrifugal force a passenger experiences as the car drives in a circle varies jointly as the mass of the passenger and the square of the speed of the car. If the a passenger experiences a force of 100.8 newtons when the car
asked by Anonymous 
Probability/Math
Find the probability that a randomly thrown dart will land in the shaded area of the dartboard. A square that is 6ft width by 6ft length 4ft width by 9ft length.
asked by Addy 
algebra
Plane X flies 2,000 kilometers in 5 hours. Plane Y flies half as far in twice the time. What is the average speed, in kilometers per hour, of plane Y?
asked by ashlee 
math
put this in lowest to greatest 95,9.5,.95,.9,9 thank you
asked by ST 
math
put this in lowest to greatest 1.6,16,16.1,.16,161 thank you
asked by ST 
chemistry
What is the boiling point of the water in your radiator if 2.00kg of antifreeze (ethylene glycol, C2H6O2) is added to 9.00x10^3 grams of water?
asked by Katelynn 
Math
Janessa bought 4 stamps for $1.84. At this,rate how much would 10 stamps cost?
asked by Ray'Janay 
grammar
What is a good adverbfor the verb go?
asked by citlalli 
Physics
A room has a volume of 120 m^3. An airconditioning system is used to replace the air in the room every twenty minutes, using ducts that have a square cross ection. Assuming that air can be treated as an incompressible fluid, calculate the length of a side
asked by ALan 
English
I still hae a few doubts on the Beowulf as well as on street directions. I really hope you can check these sentences. 1) The breath of the dragon flared up and the ground boomed. 2) Beowulf summoned the strength to swing his sword so hard that it snapped
asked by Franco 
Islam
How did Islamic civilization spread to encompass such an extensive empire(in the Middle East)? What practices or methods were used to spread Islam? P.S: If Ms.Sue answers this, PLAESE GIVE ME ENOUGH INFORMATION TO WRITE ON A ESSAY, I HELP WITH THIS,
asked by Troy 
math
There are 27 bones in each hand. The fingers have 6 more bones than the wrist and the palm has 3 less bones that the wrist. How many bones are in the fingers nd wrist?
asked by Anonymous 
Chemistry
The SI temperature unit is Celsius? A kelvin is the same temperature interval as a degree______? A temperature difference taken between two objects has ______numerical value in Kelvins and in degrees Celsius. I don't know what to write for the last 2. I'm
asked by Ana 
Biology Research Paper
'We are currently in an energy crisis. After food, fossil fuels are humanity's most important source of energy. These resources take millions of years to make. We are currently using the fuels that were made more than 300 million years ago, before the time
asked by mysterychicken 
9th grade
what is the value of x in the system? 5x3y=23 3x+5y=7
asked by ashtyn 
math
how are functions connected to right triangles?
asked by laneice 
math
log (32). the 2 is to the bottom of g in log 2 log (?)=3 2
asked by maddison 
statistics
I don't know how to begin this question and it is due tonight. I'm not looking for someone to give me the answer. I just need help with the formula that I use and how do I go about answering this? Is the formula: P = P(total subject) / P(OJ drinker over
asked by please help me! 
english
what is a good adverb for put
asked by citlalli 
Science
im doing this project on boron and one fact says that if we didn't have boron we would die, but why is that? .. plz gimme detailed explanation .. thx
asked by Anna 
English
What would be two advantages of being immortal, and two disadvantages of being immortal. Two advantages of being immortal: 1. Everyone is scared of you and you can do what you want. 2. Self esteem rises I need help putting these into quotes, ur help will
asked by Sara 
chemistry
Which of the following molecules is polar? 1. CH4 2. BH3 3. NH3 4. CF4 5. H2
asked by demi 
communication
Do a Web Search for “evidence and proof.” From the results of that search, explain what makes good evidence.
asked by dana 
College Chemistry Lab
Suppose that a 2.50x10^6M solution of red dye No. 2 had an absorbance of 0.585 at its wavelength of maximum absorbance. A second solution of red dye No. 2 is too concentrated to read its absorbance so 5.00 mL of the concentrated dye solution was diluted
asked by L** 
College Chemistry Lab
Determine the molarity of FD&C Yellow #5 in the following solution that's prepared by mixing the dye solution with water and alcohol. None of the solutes react with one another. 6.35x10^5M FD&C Yellow #5 = 6.50mL deionized water = 6.50mL ethyl alcohol =
asked by L** 
Chemistry
How does the Diethylacetal impurity arise in fermentation?
asked by Destiny 
Chemistry
Calculate how many milliliters of carbon dioxide would be produced theoretically from 2.0g of sucrose at 25 deg Cel and 1 atm pressure.
asked by Destiny 
physics
a garbage barge on the hudson river, measures 25 x 5 x 1 meters & floats in the water. how much deeper does the barge float when 4200 kg of garbage is in it? so far, all i know is the volume of the barge is 125 m^3. now i just don't know what to do next.
asked by john 
physics
an aluminum object has a mass of 27 kg & a density of 2700 kg/m^3. it is hung from a rope under the surface of water (density=1000 kg/m^3). what is the volume of the object and the tension in the string, while the object hangs from it & also under the
asked by john 
physics
a 100 kg boulder is placed under the surface of water. its volume is 0.5 x 10^5 cm^3. what is the weight of the rock while under water; compare that to the weight of the rock in air (sitting on the ground) i just found the weight of the rock in air by
asked by john 
Chemistry
The pH of 0.50 M HBrO(aq) is 4.50. Calculate the change in pH when 6.50 g of sodium hypobromite is added to 110. mL of the solution. Ignore any change in volume. Ka of HBrO is 2E9 I found the amount of moles used for each (.0547 mol NaBrO, and .055 mol
asked by Trixie 
Math Functions
ok so what kind of function is this? X Y  2 1032 4 700 6 200 8 12 10 1000 12 4412 Thank you!! :)
asked by Ryan! 
math
I was given the equation (y2)^2  x^2 =1 and asked to locate the center, vertices,and asymptotes. ifound the center to be (0,2) and the verticies are(0,1)and (0,3). but I'm not sure how to find the asymptotes. Could you please help me find them and
asked by Tye 
world geography
since the 1970 european have tired to limit
asked by nicole 
Math
Write one numerical expression and one algebraic expression. Then explain what the differnce between a numerical and algebraic expression is.
asked by Cameron 
College Chemistry Lab
For the following mixture, determine the initial concentration of Fe^3+. 0.00250M Fe^3+  8.00mL 0.00250M SCN^  7.50mL 0.10M HNO3  4.50mL
asked by L** 
math 30
I need to write 4x^2  y^2 8x 4y + 16 = 0 in standard form and I keep getting it wrong. Could someone please help me. Thanks
asked by Sandy 
english
What is a good adverb for the verb pull?
asked by citlalli 
6th grade math
if the area of a rectangle is 20 square units and the length of the base to the height are in a ratio of 5:1 what is the perimeter of the rectangle ?
asked by nettie <3 
chemistry
The traditional method of analyzing the amount of chloride ion present in a sample was to dissolve the sample in water and then slowly add a solution of silver nitrate. Silver chloride is very insoluble in water, and by adding a slight excess of silver
asked by James 
math
I calculated the average number of crashes over a 240 week period to be .0875... what formula do I use to calculate the probability that at least 19 crashes would occur over that 240 week period?
asked by Alan 
geometry
a book is 3 times as long as wide. Find the length and width of the book in inches if its area is numerically 128 more than its perimeter
asked by judi 
Science
Im doing this element project and my element is boron. i need to theme my poster with whatever element i get. example: for helium you can draw balloons on your poster... ive got no ideas for boron. help please.. something creative THnks
asked by Anna 
history
Compare the colonial empires of Spain, France and England in terms of their settlements, economic structure and political control.
asked by Mikayla 
math
which is bigger 16/50 or 9/30
asked by Leslie 
Chemistry
Calculate the pH of the solution that results from mixing the following reagents. Refer to table 1. mix 0.189 L of 0.019 M (CH3)2NH(aq) with 0.327 L of 0.011 M (CH3)2NH2Cl(aq) I tried using the HendersonHasselbach equation by finding the pKa but it didn't
asked by Trixie 
grammar
man:woman:: curved :
asked by Anonymous 
math
Today Justin reached 1/11 the age his mother was when he was born. Today Justin's mother is ____ times as old as Justin.
asked by bh 
English  To Ms. Sue
The teacher wants us to express our answer to this question in a quote, then underneath that, she wants us to tell what we mean by it. I have expressed what I mean, but I just can't turn these into quotes. What would be two advantages of being immortal,
asked by Sara 
medical health
you woek in the hospital's health information management department. part of your job is to assist the medical residents with completing records documenttation. one of the residents complains that he doesn't understand why insurance companies need so much
asked by kim 
Chemistry
The question is what is the molecular equation for acetic acid mixed with ammonia, sulfuric acid mixed with barium hydroxide, copper (II) sulfate mixed with hydrosulfuric acid, and copper (II) acetate mixed with hydrosulfuric acid. I've attempted some but
asked by Bach 
Chemistry
Identify the precipitate formed when solutions of these compounds are mixed. H2SO4 + BaCl2 ==> So when you do the double replacement reaction, would the products of this chemical equation be HCl + BaSO4? or H2Cl2 + BaSO4 ? (not balanced) also would both of
asked by Jack 
Chemistry
Copper(II) chloride and lead(II) nitrate react in aqueous solutions by double replacement. Write the balanced chemical equation, the over all ionic equation, and the net ionic equation for this reaction. If 16.06g of copper(II) chloride react, what is the
asked by Steven 
physics
singleslit diffraction pattern is formed when light of 680.0 nm is passed through a narrow slit. The pattern is viewed on a screen placed one meter from the slit. What is the width of the slit (mm) if the width of the central maximum is 2.69 cm?
asked by Andy 
Computer Science
What are two dimensional arrays and can they be seen anytime as a one dimensional array?
asked by Ren 
physics
If the average household uses electrical energy daily at the rate of 500. W, how much U235 must undergo fission to supply this need for a year? (assume 200. MeV of energy are generated per fission and that the power plant is 46% efficient). 1. Energy used
asked by sasha 
books
how can I explain the law as a living body?
asked by Anonymous 
Business Communications
Which of the following sentences uses passive voice appropriately? A:"Your order was shipped yesterday and should arrive Friday." B:"The shipping clerk sent your order yesterday and it should arrive by Friday." C:"The decision was made after much debate
asked by Chris 
algebra
y5=13 what does y=
asked by popcorn 
Business
Christine proudly tells you that she recently got dividends from of one of her investments. She obviously invested in: a) stocks b) GICs c) corporate Bonds d) a money market fund
asked by Lena 
algebra
Evaluate whether a prepaid or monthly cell phone plan is most effective for a customer that uses x weekday minutes per month. I can make up my own numbers for each plan. Having problems making up the equations.
asked by Katie 
math
According to Sal's map he is is 6 units away from the grocery. The grocery store is 5 units away from the coffee shop. The coffee shop is 1 unit away from Sal's house. How is this possible?
asked by Dan 
1st grade
this is practice write some names for 12 Please helping us thanks John
asked by john 
Chemistry
Is 2HCl soluble in water? Is BaSO4 soluble in water?
asked by Jack 
Biology
23. Since DNA sequences in humans and chimpanzees are very similar a. humans must have evolved from chimpanzees b. chimpanzees must have singlestranded DNA c. humans and chimpanzees must have a recent common ancestor d. humans and chimpanzees are the same
asked by mysterychicken 
English
1. There are peieces of words. You should put the word pieces together and make complete English words by going through the maze. The first one is done for you. OK. Let's go. 2. Roll the dice and if you get #3, move forward three spaces and put your marker
asked by rfvv 
math
one canned jucie drink is 15% orange jucie; another is 10% orange jucie. How many liters of each should be mixed together in order to get 5L that is 11% orange jucie? How many liter of the 15% orange jucie and how many liters of the 10% orange jucie should
asked by Sue 
physics
Short projectile motion question a peron kicks a football from 39.6 meters from the goal posts. the kcik leaves the ground with a speed of 24.8m/s at an angle of 49.6 degrees. the goal post are 3.10 meters high determine the amount by which the kick clears
asked by jake 
for fun
a person who studies and collects rocks for fun
asked by Anonymous 
math
The perimeter of a rectangle is 148inches. The length exceeds the width by 10 inches Find the length and width.
asked by Holly 
microeconomics
The positive contribution of politics in the determination of economic policy is that it takes market failures and failures of market outcomes into account when formulatiing policy. True or False
asked by Mary 
Trig
A body of unknown mass is attached to an ideal spring with k=120 n/m. it is found to vibrate with a frequency of 4 Hz. find the period the angular frequency and the mass of the body
asked by Nicole Lovato 
pyhsical science
How much heat is necessary to vaporize 100 g of water at 100 °C to form steam at 100 °C?
asked by Anonymous 
physical science
How much heat is necessary to vaporize 100 g of water at 100 °C to form steam at 100 °C?
asked by Anonymous 
7th grade
What is onw way to increase soubility of sugar in water?
asked by Juliana 
physical science
How much heat is necessary to vaporize 100 g of water at 100 °C to form steam at 100 °C?
asked by Anonymous 
physical science
How much heat must be removed from 500 g of water at 0 °C to form ice at 0 °C?
asked by Anonymous 
physical science
An electric current heats a 225 g copper wire from 20.0 °C to 40.0 °C. How much heat was generated by the electric current? (ccopper = 0.093 cal/gmdeg)
asked by Anonymous 
physical science
A sample of silver at 20.0 °C is heated to 100 °C when 1000 cal is added. What is the mass of the silver? (csilver = 0.056 cal/deggm)
asked by Anonymous 
chemistry
A 24L sample of a gas at fixed mass and constant temperature exerts a pressure of 3.0 atm. What pressure will the gas exert if the volume is changed to 16L?
asked by catherine 
Physics
On a bright sunny day, the irradiance on the surface of the ocean is 1.6*10^17 photons cm^2 s^1. If k=0.02 m^1 a)How much light is left at 15 m? b)at 75 m?
asked by Krysten 
chemistry
A common laboratory system to study Boyle's law uses a gas trapped in a syringe. The pressure in the system is changed by adding or removing identical weights on the plunger. The original gs volume is 50.0 ml when two weights are present. Predict the new
asked by catherine 
Trig
How would I do this problem? Verify that each equation is an identity. cos^2x+tan^2xcos^2x=1 the ^2 is just saying squared. ex. cos^2x is cosine squared x
asked by Jill 
chemistry
A sample of argon gas occupies a volume of 950 mL at 25.0C. What volume will the gas occupy at 50.0C if the pressure remains constant?
asked by catherine 
Physics
At a spot in the ocean , the surface irradiance is 7.8*10^16 photons cm^2 s^1, and k=0.14 m^1. At what depth does the euphotic zone end? (Find definition for euphotic zone and solve for z)
asked by Krysten 
Physics
Your airplane leaves 20 degrees north (linear velocity = 845 nm/h), heading to a point due north at 25 degrees north (linear velocity = 815 nm/h). You set the autopilot for due north and go to sleep. If your flight time is 30 mins, how far off in what
asked by Krysten 
maths
Theorem B: Taylor's Formula with Remainder ,? can someone please help me prove this theorem B for (a) the special case of n = 3, and (b) an arbitrary n.
asked by sel 
Physics
What is the instantaneous acceleration(both magnitude and direction) due to the coriolis force on an object moving at 160 m/s to the west located at 17 degrees south, 86 degrees west?
asked by Krysten 
Math
an envelope contains 20 bills in denominations of $1,$5,$10, the total of the envelope is $54. how many of each bill do i have
asked by darryl 
Trig
Verify that each equation is an identity. cos^2x+tan^2xcos^2x=1
asked by Jill 
sunshine math4
mark hid a 10 bill inside his favorite book. he forgot the pages where he hid it. is the sum of the pages where the bill is hidden is 177, on what pages will mark find his money
asked by Ivan 
PHY131
a bullet is fired from a gun that is 2.0 meters above flat ground. the bullet emerges from the gun with a speed of 250 m/s. a) how long does the bullet stay in the air before it hits the ground? b) At what horizonatal distance from the firing point does
asked by S.Strange 
inmmigration
what are the changes the United States has made to policies concerning the treatment of Muslim and Arabic members of society?
asked by Anonymous 
Math
an envelope contains 20 bills in denominations of $1,$5,$10, there are two times as many $5 bills as there are$10 bills. the total of the envelope is $54. how many of each bill do i have
asked by darryl 
Can anyone help me with a physics question?
A water tank has a volume of 100m^3. A square pipe leading to a pump is designed to completely replace all water in 20 minutes. Caluclate the length of a side of the square if the water is travelling at 5.0m/s through the square pipe.
asked by Rob 
chemistry
How many moles of calcium carbonate can be disloved in .0250 moles of hydrocloric acis
asked by stuart 
chemistry
a 500.0 mL gas sample at STP is compressed to a volume of 300.0 ml and the temperature is increased to 35.0 C. What is the new pressure of the gas in pascals?
asked by catherine 
maths
how to find the terms through x^5 in the maclaurin series for? Hint: it may be easiest to use knownMaclaurin series and then perform multiplications, divisions, and so on. For example, tan x = (sin x)/(cos x). (1)f(x) = tan x, (2) f(x) = e^2 sin x (3) 1 +
asked by sel 
Physics
In a fit of pique, the Canadians fire a cannonball due south from vancouver (lat 49.2 degrees N) at a randomly picked city (39.4 degrees N). Assuming the cannonball takes 48 minutes to get there, by how far and in what direction will the cannonball miss?
asked by Krysten 
math
Nine dimes are what fraction if a dillor.... write the value of nine dimes using a dollor sign and a decimal point
asked by jojo 
BIS 155 Data Analysis w/Spreadsheet
How would I begin to compile data into useable data in using Excel?
asked by Yolanda 
English
1. She is good at dancing. 2. She is good at dance. (Which one is correct? Are both correct?) 3. I am a student at Class 11. 4. I am a student in Class11. 5. I am in Class 11. 6. I am a first year student in Class 11. 7. I am a first grader of Class
asked by rfvv 
Biology  Pregnancy
"If the ovaries were removed between the start of pregnancy and the second month then.....because....." "If the ovaries were removed after the second month....." I'm confused because I thought that once pregnancy begins, no more ovulation occurs until
asked by Stuck 
math
one kilometer is how many meters
asked by jojo 
Chemistry
What range of values for electrostatic potential is characteristic of strong acids? What range is characteristic of weak acids? Why is there a correlation between electrostatic potential and acid strength?
asked by Joe 
Chemistry
A buffer solution of volume 100.0 mL is 0.150 M Na2HPO4(aq) and 0.100 M KH2PO4(aq). Refer to table 1. (a) What are the pH and the pH change resulting from the addition of 80.0 mL of 0.0500 M NaOH(aq) to the buffer solution? pH pH change (include negative
asked by Trixie