Questions Asked on
May 4, 2014

Chemistry
Balance the following equation for a half reaction that occurs in basic solution. Use e– as the symbol for an electron. SO3^2 > S2O4^2
asked by BOB 
Chemistry
Using a table of standard reduction potentials, determine the best answer to the following questions. a) Which of the following reagents would oxidize Cr to Cr3 , but not Ag to Ag ? Choices: Ca^2+, Br2, Co^2+, Ca, Br^, or Co. b) Which of the following
asked by Alexis 
Chemistry
In a particular redox reaction, MnO2 is oxidized to MnO4– and Cu2 is reduced to Cu . Complete and balance the equation for this reaction in acidic solution. Phases are optional. MnO2 + Cu^2+ > MnO4^ + Cu^+
asked by BOB 
Physics
A vibrating point on a spring travels 60 mm during three cycles. What is the amplitude of the vibration?
asked by Liz 
Chemistry
Ethanol (C2H5OH) melts at 114 degrees Celsius. The enthalpy of fusion is 5.02 kj/mol. The specific heats of solid and liquid ethanol are 0.97 J/gK, respectively. How much heat (kJ) is needed to convert 25.0 g of solid ethanol at 135 degrees Celsius to
asked by Kylie 
CRJ
1. Which of the following was an impact on policing as a result of WWII? (Points : 1) The Pendelton Act An increase in educational requirements for police A shortage of experienced officers The adoption of residency requirements for police Question 2. 2.
asked by Scott 
statistics
John Davis, a manager of a supermarket, wants to estimate the proportion of customers that will be using food stamps at his store. How large a sample is required to estimate the true proportion to within 3% with 98% confidence?
asked by Mark 
math check probability
5. A bag contains 7 green marbles and 4 white marbles. You select a marble at random. What are the odds in favor of picking a green marble? A. 7:11**? B. 7:4 C. 4:7 D. 3:7  6. Food Express is running a special promotion
asked by k.k 
Statistics
Reginald Brown an inspector from the department of weights and measures, weighs 15 eighteenounce cereal boxes of corn flakes. he finds their mean weight to be 17.78 ounces with a standard deviation of .4 ounces. are the cereal boxes lighter than they
asked by Mark 
statistics
a medication is 75% effective against a bacterial infection. find the probability that if 12 people take the medication, at least 1 person"s infection will not improve
asked by Anonymous 
Geometry
Which if the following is equivalent to 7pi/4? A.285 degrees B. 305 degrees C. 315 degrees D. 330 degrees E. 375 degrees
asked by Emma 
english
Paraphasing practice In 1857, a British expedition led by Richard Burton and John Speke set out to find the great lakes shown on Ptolemy's map. After reaching Lake Tanganyika, the two men split up because Burton was ill.
asked by Tamara 
Chemistry
Calculate the cell potential for the following reaction as written at 25.00 °C, given that [Zn2 ] = 0.842 M and [Ni2 ] = 0.0100 M. Standard reduction potentials can be found here. reaction: Zn(s)+Ni^2+(aq)>Zn^2+(aq)+Ni(s) standard reduction Zn: .76
asked by Sophie 
English
Fill in the blank with verb in parentheses Have you ever ___ to prom before?___last year as a sophomore Thanks
asked by snow 
math
List the three sections of the statement of cash flows.
asked by tota 
chemistry
A 2.00 g sample of a particular compound was dissolved in 15.0 g of carbon tetrachloride. The boiling point of this solution was determined to be 77.85ºC. For pure CCl4, TB = 76.50ºC and KB = 5.03°C·kg/mol Calculate the boiling point elevation, ΔTB,
asked by sarah 
AStronomy/ Math
I do not understand how to do one of my online homework questions: What is the Schwarzschild radius of a 100 millionsolarmass black hole? The mass of the Sun is about 2 × 1030 kg, and the formula for the Schwarzschild radius of a black hole of mass M
asked by Kaitlyn 
business&technical english
When you know your audience would be receptive to your message, you use  approach.
asked by zobuia 
MATH
On a TV game show, a contestant makes $600 for every correct answer but loses $500 for every wrong answer. After answering 22 questions, Sarah broke even. How many questions did she answer correctly?
asked by TAYLOR 
math
SHURGRO fertilizer contains 18% ammonia plus carbon compounds.If 80% of the ammonia contains the chemical element nitrogen, what percent of this fertilizer is nitrogen? a. 14.4% b. 18% c. 38% d. 40% e. 62% please answer and explain
asked by thomas 
science
1. Why do earthquakes occur along the San Andreas Fault? a. Two plates meet at the San Andreas Fault and they slide next to each other causing earthquakes b. Two plates converge at the San Andreas Fault causing earthquakes*** c. Two plates pull apart at
asked by what 
physics
the length of nylon rope from which a mountain climber is suspended has a force constant of 1.40*10^4. how much would this rope stretch to break the climbers fall if he freefall 2.00 m before the rope run out of slack
asked by sara 
math
Paul bowled 6 games today. His scores are shown below. Game 1: 158 Game 2: 124 Game 3: 110 Game 4: 167 Game 5: 146 Game 6: 165 a. What was Paul's median score for the 6 games? Answer: 152 b. What was Paul's mean score for the 6 games? Answer: 145 c. Paul
asked by anonymous 
Physics
A soccer player kicks a 0.43 kg ball straight up to see how far it will rise. The ball starts with a velocity of 16m/s at a height of 0.85m above the ground. It rises then falls straight down to the ground. a) what is the total energy of the ball just
asked by cee 
Statistics
σ = sqrt[ P * ( 1  P ) / n ] = sqrt [(0.8 * 0.2) / 100] = sqrt(0.0016) = 0.04 z = (p  P) / σ = (.73  .80)/0.04 = 1.75. What type of formula is this problem?
asked by Linda 
finance
It’s been two months since you took a position as an assistant financial analyst at Caledonia Products. Although your boss has been pleased with your work, he is still a bit hesitant about unleashing you without supervision. Your next assignment involves
asked by mamey 
Math (check)
4. A spinner is divided into 10 equal sections numbered from 1 to 10. You spin the spinner once. Find P(not even). A. 1/3 B. 1/2 C. 1/5*****? D. 1/4
asked by me 
mathematics
Two equal circle touch externally at point P. PX and PY are chords in the respective circles which are perpendicular. If the centres Are A and B. Show that AX is parallel to BY and AXYB is a parallelogram.
asked by Anonymous 
Assessment In Ece
Eastern cultures consider a child's standing up for his own rights
asked by keyon 
Science
Explain the energy transformations during skydiving Explain what happens once a skydiver reaches terminal velocity please help...i cant find any information...please note that I need to EXPLAIN
asked by Anonymous 
algebra
preform the given set operation U= 1,2,3,4,5,6,7,8,9,10 {1,3,6}{2,4,9}
asked by Mary Ann 
math
It has been estimated that 0.8% of a certain country's population are homeless. Now 0.8% is a small percentage, but there are approximately 313 million people in the country, and 313 million is a large number. Approximately how many people are homeless?
asked by TAYLOR 
math
Your optimal exercise heart rate for cardiovascular benefits is calculated as follows: Subtract your age from 220 and then find 80% of the difference. the rate for a 40 year old is 144 and the rate for a 10 year old 168 Rounded to the nearest whole number,
asked by taylor 
Math
Find the quadratic polynomial whose graph goes through the points (2,5), (0,5), and (1,11). f(x)= ______x^2+ ______x+ _______
asked by Lucy 
chemistry
A balloon of methane gas, CH4, has a temperature of 2 degrees celcius and contains 2.35g of the gas. What is the temperature in kelvin and how many moles of gas does the balloon contain?
asked by darleen 
math
what is the rule for the function shown in the table below? x 1 0 1 2 y 2 1 4 7
asked by steve 
MATH ✿╣Check╠✿
A bag has 6 green marbles, 4 red marbles, 5 yellow marbles, and 3 purple marbles. What is the probability of choosing a purple marble? 1/6**? 6/18 3/20 1/9
asked by luna 
MATH ✿╣Check╠✿
8. There are 5 different cookies in a bag. One of them is your favorite, chocolate chip. What is the probability that you will not get your favorite? 1/5 2/5 24/25 4/5**?
asked by luna 
Medical ethics
What should I expect from this course. The title pretty much explains it but I would like some more detailed information please
asked by Brandy 
Statistics
Dr. Hernandez plans to measure FEV in a random sample of n young women from a certain popu lation, and to use the sample mean y ̄ as an estimate of the population mean. Let A be the event that Hernandez’s sample mean will be within ±100 ml of the
asked by Audrey 
applied statistics
how to remember the difference between dependent and independent variable and which one is X n Y ?
asked by Katon 
physics
suppose the length of a clock's pendulum is increased by 0.01 exactly at noon what time will be exactly next day by noon
asked by sara 
Statistics
If I'm sampling 50 people and 35 people liked Pepsi instead of Coke how can i apply that to the test statistics for a mean t=x(bar)mule/s/ square root n
asked by Taylor 
math
The distance between two points is correctly expressed as 720 statute miles or 630 nautical miles. Which of the following most closely approximates the value of one statute mile in terms of nautical miles? a. 0.88 b. 0.89 c. 0.90 d. 1.14 e. 1.25 please
asked by thomas 
Math Statistics
An epidemiologist is planning a study on the prevalence of oral contracep tive use in a certain population. She plans to choose a random sample of n women and to sue the sample proportion of oral contraceptive users (pˆ) as an estimate of the population
asked by Needs Help 
English
It for speech i represent at school.english is the language of opportunity.why bother to teach indigenous languages?
asked by Thembeka nzama 
Math
Your cell phone cost $40 per month plus $0.15 for each text message you send or receive. You have at most$45 to spend on your cell phone bill. What is the maximum number of text messages that you can send or receive next month?
asked by Pablo 
UNIVERSITY
a sound wave has a beta that is 10 dB, calculate the intensity of the sound wave in units of international standards and the amplitude of the pressure wave
asked by rosa 
physics
How would a diamond look if there were no dispersion?
asked by ryan 
Math
The temperature of an object in a experiment is T(t) = 60(1/3)^t + 10, where T is the temperature in degrees C and t is time in seconds. What is the domain and range of this situation?
asked by Tom 
Math
The Book Nook makes four times as much revenue on paperback books as on hardcover books. If last month's sales totaled $124,300, how much was sold of each type book?
asked by Anthony 
math
A rikhshaw covered 2 km/hr and return back at a speed of 11 km/hr find the average speed of the rickshaw
asked by jatin 
Criminal Justice  Ethics
Which of the following concepts best captures the utilitarian notion that each person's welfare is equally important and, thus, that no one person's happiness should be regarded as more important than any other person's? A. Fecundity B. Psychological
asked by Erica 
Algebra I
what does factoring the sum or difference of two cubes mean
asked by Allie 
Algebra
Solve. • x = 2 • x = –2 • x = 28 • x = –28 How?
asked by Sandra 
Physical science
a swimming pool is 25 m long and 10 m wide and is filled to an average depth of 1.5 m how many kilogram of water does it contain?
asked by Tin 
reading
i did all of them except these i need help all the questions look like they repeat themselves i don't know if i'm doing them correct 1.how does shakespeare use situationaL irony in act 1 to introduce or develop the impulsive thinking theme 2.what is verbal
asked by yasminb 
chemistry
the mass of a certain mixture of BaO and CaO is found to be exactly one half that of the mixed sulfates formed from it by the action of H2SO4. calculate the percentage of BaO and CaO in the mixture.
asked by jane 
algebra
(7 square of p)/ (square of p)
asked by joe 
English/Mythology
What is ironic about the death of Jason and Theseus from Greek mythology
asked by Tom 
English/Mythology
What is a ritualistic interpretation of the story of Theseus
asked by Tom 
chemistry
The chemical reaction for dissociation of an acid is: HA + H2O → H3O+ + A Assuming all of the hydronium ion (calculated in in the previous problem) comes from this reaction, what is the concentration of conjugate base, [A], in this system?
asked by sarah 
chemistry
The acid dissociation constant, Ka, for this reaction is given by the following formula (this is also in your book): Ka=[H3O+][A−][HA] The acid concentration, [HA] is given in the introductory information of this problem. Using this information and your
asked by sarah 
science
Predicting Table of radioactive isotopes below Isotope type of decay Uranium238 Alpha Nickel63 Beta Iodine131 Beta Radium226 Alpha With the help of a periodic table, predict the element that forms in each case. Explain your reasoning.
asked by Andrean 
chemistry
1. A 2.00 g sample of a particular compound was dissolved in 15.0 g of carbon tetrachloride. The boiling point of this solution was determined to be 77.85ºC. For pure CCl4, TB = 76.50ºC and KB = 5.03°C·kg/mol Calculate the boiling point elevation,
asked by sarah 
chemistry
What is the pH of a solution if [H+] = 2.3 x 10–5 M?
asked by Anonymous 
Ethics in Criminal Justice
Which of the following, according to Carl Klockars, is NOT an important consideration in determining whether the good ends of police work justify immoral means in a given scenario? A. Are there other, nondirty, means that may be effective but that we may
asked by Pat 
English
Traditional african marriage is an advantage for men only not women
asked by Zinhle 
Physics
A 0.45kgkg mass oscillates in simple harmonic motion on a spring with a spring constant of 160N/mN/m .What is the period of the oscillation?
asked by Spaceman 
Math
A wheel with radius 2 cm is being pushed up a ramp at a rate of 6 cm per second. The ramp is 520 cm long, and 260 cm tall at the end. A point P is marked on the circle. How far does the wheel travel in one rotation?
asked by Devon 
Science
What happens to the resultant force on each point of the skydive?
asked by Anonymous 
math
Describe how the QuickZoom feature of QuickBooks does or does not provide the same help in the statement of cash flows as it does in the income statement
asked by tota 
algebra
Which of the following ordered pairs is included in the solution set of the system, y < 2  2x and y > 2x 3? (4, 0) (0, 0) No Solution (3, 4) 2. Choose all correct answers. Which of the following are solutions of the system? x < 3 and x + y < 5 (2, 2) (4,
asked by Andrean 
English
NEtholic REvolution >How did agricultural advancements impact society? What are three reasons for that? How did agricultural advancements impact society?
asked by Nicolas 
business
Hercules Films is deciding on the price of the video release of its film Bride of the Son of Frankenstein. Marketing estimates that at a price of p dollars, it can sell q = 240,000 − 15,000p copies, but each copy costs $4 to make. What price will give
asked by Dominic Cigliano 
finite math
Hercules Films is deciding on the price of the video release of its film Bride of the Son of Frankenstein. Marketing estimates that at a price of p dollars, it can sell q = 240,000 − 15,000p copies, but each copy costs $4 to make. What price will give
asked by Dominic Cigliano 
Global History
I need answers for "GLOBAL HISTORY REGENTS REVIEW" packet. Associated names are Mr. Moeller and Mrs. Sita. I can't find answers anywhere. The packet can be found blank online here: johnbowne DOT
asked by Nick 
French
We have to respond to these questions in the negative form.I did some but need help with these. Please help, please and thanks Estce que les artistes ont utilise des boutons dans le collage? Estce que les visiteurs ont mange du gateau a l'exposition?
asked by Epic 
Algebra
The time, t, required to drive a certain distance varies inversely with the speed, r. If it takes 7 hours to drive the distance at 55 miles per hour, how long will it take to drive the same distance at 65 miles per hour? • about 6.25 hours • about
asked by Sandra 
physics
12.8 kg of ice at 0 C is dropped into 3.3 kg of water at C. What fraction of the ice melts? =
asked by johnny 
Physics
8.2 kg of ice is taken from a temperature of 49 C into steam at 123 C. What is the energy used? Q_total =
asked by Joseph Smith 
physics
Question Part Points Submissions Used 1 2 3 4 0/0.37 0/0.37 –/0.37 –/0.37 4/15 1/15 0/15 0/15 Total 0/1.48 ...A diamond in air is illuminated with white light. On one particular facet, the angle of incidence is 46.05°. Inside the diamond, red light
asked by ryan 
Algebra 1b
Determine the equation of g(x) that results from translating the function from f(x)=(x+2)^2 to the right 6 units
asked by Lisa 
Chemistry
If you dissolve 13.5 g of malic acid, C4H6O5, in half a liter of water (0.500 L), what is the molarity of the acid in the solution?
asked by Ashley 
math
Sunflower seeds are sold in packages that weigh 5 1/4 ounces. If there is a supply of 357 ounces of sunflower seeds. how many packages of seed can be made?
asked by lew 
CHEMISTRY
The enthalpy of solution of nitrous oxide (N2O) in water is 12 kJ/mol and its solubility at 20 oC and 1.00 atm is 0.121 g per 100. g of water. Calculate the molal solubility of nitrous oxide in water at 1.600 atm and 20 oC. Hint, first find Henry's law
asked by Raoul 
math
a case of diet cola costs $7.23. If there are 24 cans in a case, find the cost per can. Round to the nearest cent. then find the number of cans you can buy per $1. Round to the nearest ten. Which number is more useful? why?
asked by brianne 
physics
A 3.8 kg ball is rolling along a slippery road at 1.5 m/s E. It then rolls onto a patch of grass and slows to a stop over a distance of 3.6 m a) calculate the total work on the ball b) calculate the net force that caused the ball to come to a stop (force
asked by cee 
Physics
A car's engine is only 12% efficient at converting chemical energy in gasoline into mechanical energy. If it takes 1.8 x 104 N of force to keep the car moving at a constant speed of 21 m/s, how much chemical energy would be needed to move the car a
asked by Lily 
help
A sound wave travels at 343 m/s and a compression passes by every 12 ms. What is the wavelength of this sound?
asked by Physics 
law
The crime analysis technique involves the study of crime and/or social problems in a specific area is Tactical crime analysis
asked by Anonymous 
chemistry
Can CoBr2+ NH4Br + NH4OH > Co^2+ (aq) + 2NH3 (l) + H^+ (aq) + H2O (l) + 3Br^ form the complex [Co(NH3)5Br]Br2 if so please explain
asked by ellie 
business&technical english
. When business messages use a/an  or  attitude, they risk sounding selfish and uninterested in the audience.
asked by zobuia 
business&technical english
When we avoid using words and phrases that unfairly or even unethically categorize or stigmatize people in ways related to gender, race, ethnicity, age or disability, this is called
asked by zobuia 
business&technical english
 language is used to make comparisons in business communication
asked by zobuia 
Algebra
I have to identify the system of equations, if any for: 2x4=1, 12=6x3 no solution? infinitely many solutions? (0,1)? or (1,0)?
asked by Sandra 
chemistry
Pasta packages often have different direction for cooking at high altitudes. a.) According to the directions, should you boil the pasta for a longer to shorter time? Why? b.) If the pasta water boils rapidly over mediumhigh heat, is there any reason to
asked by mai 
English
What kind of dialogue should I write with this? Write an example of a very brief dialogue between at least 2 people who are talking about a recent event. The characters should be about your age(15).
asked by Andrea 
math
In 2007, 19.6 percent of a certain country's children were living in poverty. If there were 72.8 million children, what number were living in poverty? Express the amount as a whole number.
asked by TAYLOR 
what is the answer
An object 8.1 feet tall casts a shadow that is 24.3 feet long. How long in feet would the shadow be for an object which is 20.1 feet tall?
asked by Anonymous 
algebra
Let U= 1,2,3,4,5,6,7,8,9,10 {12345 n 34567 Thank you
asked by Mary 
Economics
Why is the south african government is not providing enough welfare on subsidies to the poor and underpriviledged?
asked by Prince 
math
Your optimal exercise heart rate for cardiovascular benefits is calculated as follows: Subtract your age from 220 and then find 80% of the difference. Find the optimal heart rate for a 40yearold and for a 10yearold. Rounded to the nearest whole number,
asked by taylor 
statistics
A researcher was interested in assessing the effectiveness of the Statistics Diet as compared to a regular low calorie diet on weight loss. In the study, obese participants were randomly assigned to one of two groups: (1) the Statistics Diet, which
asked by Matt 
Spanish Proofreading
I haven't been able to meet with my Spanish professor to go over my short composition (it basically had to be a past narration using only the preterite and imperfect). If any Spanish speakers wouldn't mind reading it and letting me know what I need to
asked by Jamie 
statistics
It is known that the population mean for the Quantitative section of the GRE is 500, with a standard deviation of 100. In 2006, a sample of 400 students taking the GRE, whose family income was between $70,000 and $80,000, had a quantitative GRE score of
asked by Sue 
statistics
A researcher is interested in whether herbal remedies are effective in relieving allergies, and if so, which ones are most effective. The researcher takes a group of 20 allergy sufferers and randomly assigns each one to receive herbal tea, a homeopathic
asked by Sue 
Chemistry
Long question but its my last one for homework and im stuck on this word problem. Biomass is represented by the empirical formula C60H87O23N12P. Write a balance equation for the oxidation of C60H87O23N12P with O2 to form CO2, H2O, HNO3, and H3PO4 beginning
asked by Samantha 
math
Four similar glass tumblers just fit into a cubical box.The area of the top of the circular cover of any one of the tumblers is 4 pi.The area of each side of the box is a. 16 b. 32 c. 32 pi d. 64 e. 64 pi please answer and explain
asked by thomas 
What animals eat
1. What does a hippopotamus(hippo) eat 2. What does a koala eat 3. What does a monkey eat 4. What does a leopard eat CHOICES 1.gum leaves 2.fruit, nectar 3.antelope 4.grass Thanks!
asked by dddd47906 
Science
4. To identify the genotype of yellowseeded pea plants as either homozygous dominant (YY) or heterozygous (Yy), you could do a test cross with plants of genotype ________. (explain your answer) Do we do a punnet square?
asked by Anonymous 
Astronomy
Imagine you are in a spaceship one million km from a black hole of mass kg. Initially you are flying directly away from it at a velocity of 16.9 km/s. Using the nbody approximation, what is your velocity one second later? Type your answer in metres per
asked by qwerty 
math
Which line would have the steepest slope? regular apples y = $2.00 organic apples y = $2.50 pears y = $2.75 my answer is pears
asked by steve 
Maths
13. The pet shop owner told Jean to fill her new fish tank 3/4 full with water. Jean filled it 9/12 full. What fraction of the tank does Jean still need to fill?
asked by Anonymous 
Math
10/21/4=
asked by Anonymous 
CHEMISTRY
The enthalpy of solution of nitrous oxide (N2O) in water is 12 kJ/mol and its solubility at 20 oC and 1.00 atm is 0.121 g per 100. g of water. Calculate the molal solubility of nitrous oxide in water at 1.600 atm and 20 oC. Hint, first find Henry's law
asked by Raoul 
Spanish Proofreading
I haven't been able to meet with my Spanish professor to go over my short composition (it basically had to be a past narration using only the preterite and imperfect). If any Spanish speakers wouldn't mind reading it and letting me know what I need to
asked by Jamie 
MATH ✿╣Check╠✿
which expression would you use to figure out the number of ways you can arrange the letter in the word EQUATION?My answer: 8P4 (the 8 and 4 are suppose to be small)
asked by luna 
Math
Claire wants to determine how brightly to illuminate her stage. stage width (in metres) x stage length (in metres) x 0.14 = total watts for stage If her stage is 7.25 metros wide and 11.5 metres long, a) calculate the exact number of watts needid to
asked by Lucas 
engineering
Hello guys.I got a homework and seem like I am stocked. a)What type of experiments should be done to find the relationship between the strength of concrete and water/cement ratio. b)what will be the range of the water/cement ratio? It would be great if you
asked by Elena 
Math
A box containing 20 yellow balls, 9 red balls and 6 blue balls. If the balls are selected at random, what is the smallest number of balls that need to be selected so you will select at least two balls of each colour
asked by Baby girl 
Physics question
Does the crest of a wave usually have a larger amplitude than the trough?
asked by Liz 
physics
what is the magnitude and the direction of an electric field when an electron is accelrated vertically upward at a distance of 5.5 metres in 3 micro seconds?
asked by Anonymous 
physics
If an archaeologist finds an ancient fire pit containing partially consumed firewood and the 14C content of the wood is only 10% of an equal carbon sample from present day tree, what is the age of ancient site. 14 C has half life of 5730 years
asked by Dave 
math
A truck has 5.9L engine in it. 5.9L of the overall displacement in 6 cylinders each 102mm bore (diameter) and 120mm stroke (length). Engine operates at 16.3:1 compression ratio and with 6psi (0.41atm) of boost cruising at 1600rpm. What is the volume of ONE
asked by Greg 
chemistry
Calculate the theoretical volume of gas you would expect to be evolved from your experiment if X moles of magnesium were reacted with an excess of HCl at standard conditions (STP).
asked by Anonymous 
math
If feet is on e and turns to a how many degrees did she turn
asked by maram 
Economics
What are consumer subsidies?
asked by Siyasanga dubula 
physics
Sunlight strikes the surface of a lake at an angle of incidence of 44.5°. At what angle with respect to the normal would a fish see the Sun?
asked by ryan 
English
What does aberration mean?
asked by Shazia 
Statistics
I am a big shot research scientist at Washington University where I am using 2ebrafish to study neuronal migration. My graduate students measured 40 fish and found that the mean length of the fish sampled was 3.7 cm with a standard deviation of 0.5 cm.
asked by Linda 
math urgent please
Petr has a cylindrical block of wood od diameter 6 cm and height 18 cm. He glues the base to a board, but wants to paint the rest of the block. He wants to paint the bottom half of the wood black and the top half white. a) Calculate the surface area of the
asked by Lucas 
Statistics
In a study of 200 students, 42 were found to have a GPA greater than 3.0. Find a 98% confidence interval estimate of the proportion, p, of all students that have a GPA greater than 3.0.
asked by Jason 
???
What is Internet and how does it work?
asked by dddd47906 
Math
a rope is cut in too two piece the shorter piece is 18 feet long and the longer piece is twice as long how long was the rope before it was cut
asked by Janella 
MATH
Abe can mow the lawn in 15 minutes. Ben can mow the lawn in 20 minutes.Carl can mow the lawn in 30 minutes.They work together for 5 minutes.What part of the lawn was mowed? a. 1/4 b. 2/3 c. 3/4 d. 4/5 e. all of it please answer and explain
asked by thomas 
math
A metal cube with an edge of one foot is melted into a rectangular solid oneeighth of a foot in height. What is the area of the top of the new solid? a. 1/64 sq.ft b. 1/8 sq.ft c. 1/4 sq.ft d. 4 sq.ft e. 8 sq.ft please answer and explain
asked by thomas 
home economics
Cost and concequences of providing welfare
asked by Anonymous 
math
What is 435/2?
asked by nasia 
Trignometry
A calculator is broken so that the only keys that still work are the \sin, \cos, \tan, \cot, \sin^{1}, \cos^{1}, and \tan^{1} buttons. The display initially shows 0. In this problem, we will prove that given any positive rational number q, show that
asked by Sonia 
Science
GCSE PhysicsForces affecting falling objects. My falling object is a skydiver Can you please help me to find the information needed? Nothing too complicated please. Here is a list of things I need to include but I have no idea where this information can
asked by Hanna 
Precalculus
Solve for x given the interval of [0,2pi). cos^2x=2+2sinx I got (3pi)/2 or 270 degrees.. By the way, does the notation [0,2pi) mean 0
asked by Anonymous 
algebra
7/ square root of p
asked by joe 
Math
What is the function rule for the following? Rex paid $20 for a membership to the pool and pays $3.00 each time he goes to the pool. My answer is y = x + $20
asked by steve 
chemistry
The pH of a 0.00100 M solution of a particular acid is 4.95 at 25°C. Use the solution pH to calculate the concentration of hydronium ion present [H3O+]
asked by sarah 
english
I need help with some conversation examples! 1) Write an example of a conversation between at least 2 adults who are talking about the possibility of one of them getting a new promotion with their current company. 2) Write an example of a very brief
asked by Andrea 
Math
Solve the following equation. y = 6  x and y = x  2
asked by steve 
physics
Sunlight strikes the surface of a lake at an angle of incidence of 44.5°. At what angle with respect to the normal would a fish see the Sun?
asked by ryan 
physics
A diamond in air is illuminated with white light. On one particular facet, the angle of incidence is 46.05°. Inside the diamond, red light (ë = 660.00 nm in vacuum) is refracted at 17.38° with respect to the normal; blue light (ë = 470.00 nm in vacuum)
asked by ryan 
Algebra
Divide. (–6m^9 – 6m^8 – 16m^6) ÷ (2m^3) • –3m9 – 3m8 – 8m6 • –3m6 – 6m8 – 16m3 • –3m6 – 3m5 – 8m3 • –3m6 – 3m5 – 16m3
asked by Sandra 
MATH
The daily low temperatures during one week were reordered as follows: 2 degrees F, 7 degrees F, 6 degrees F, 3 degrees F, 14 degrees F, 16 degrees F, and 10 degrees F. Explain how you would show a child how to find the average daily low temperature
asked by Monica 
math
The Crabby Apple restaurant lost $2000 in the month of January. If their net worth at the end of the month is $200, explain how you would show a child how to find their net worth at the beginning of the month.
asked by Monica 
math
The Crabby Apple restaurant lost $2000 in the month of January. If their net worth at the end of the month is $200. What was the net worth at the beginning of the month?
asked by monica 
Chemistry
H2 (g) + I2 (g) 2 HI (g) If the initial concentrations of H2 and I2 are 1.0 M and the initial concentration of HI is 0.5 M (Kc = 54.3 at 430oC). (a) Is the reaction at equilibrium? (b) If not, which way will the reaction proceed?
asked by Troy 
math
find fifteen different fractions between 1/4 and 1/2
asked by jenna 
Astronomy Question about Neutrinos
I can't seem to figure this out, I know that neutrinos have nonzero mass but I don't know how that can help me figure this out The mass of a neutrino is zero. equal to the mass of a proton. equal to the mass of an electron. less than the mass of an
asked by Kaitlyn 
math mrs. sue HELP!!!
how do u find the mean absolute deviation and what are the steps too!!
asked by rian 
Algebra 2
Game Theory: Consider a game in which each of two people simultaneously chooses an integer: 1 or 2. Find the expected value for player A and the expected value for player B. Is each game fair. Question: If the numbers are the same, then player A wins 1
asked by Jackie 
Physics
A hiker throws a rock with a mass of 1.4kg from a cliff that is 37 m above the ground . The hiker gives the rock an initial downward velocity of 8.5 m/s. a) What is the energy of the rock at the moment the hiker releases it? b) What is the velocity of the
asked by cee 
physics
A 0.25 kg{\rm kg} object is suspended on a light spring of spring constant 35N/mN/m . The spring is then compressed to a position 17cmcm above the stretched equilibrium position.How much more energy does the system have at the compressed position than at
asked by Spaceman 
math
how do u find the mean absolute deviation of a set of data and please show me how
asked by rian 
math
Let say that Amy made 8 out of 21 free throws and Jane made 4 out of 21 free throws. Who had the better rate of success? Round your answer to the nearest percent.
asked by mike 
Science
Explain what happens when a skydiver reaches terminal velocity? thank you...your help is very much appreciated!!
asked by Anonymous 
MAT 116
If a > 0 and b < 0, then which of the following must be true
asked by Dee 
Geometry
Please help me 1.The surface are of the exterior of hollow rubber ball is 16pi in^2.The rubber is 1/4 inch thick. Find the surface are of the interior of the ball. 2. The length of each side of a cube is 6 inches long. Find the exact area of a sphere
asked by Emma 
Ethics in Criminal Justice
In contrast to Bentham, John Stuart Mill argued that happiness or pleasure should be understood: A. quantitatively B. qualitatively C. as the same for all people D. as the absence of pain only I am stuck between A and B, but leaning toward B.
asked by Pat 
math
a car traveled 91 miles in 3 1/4 hours. What is the cars average speed in miles per hour?
asked by donny 
math
Two mechanical shafts are joined together at their ends. Together, their total length is 17 2/9 ft. If one shaft is 7 5/9 ft long. How long must the other shaft be?
asked by donny 
math
does anybody know how to find the mean absolute deviation and the steps
asked by Anonymous 
math
What is the area of a rectangle that has a length of 3 1/5 miles and a width of 5 1/2 miles?
asked by yogi 
physics
A metal ball of mass 1.8 kg with initial temperature of 46.5 C is dropped into a container of 3 kg of water at 15 C. If the final temperature is 22.6 C, what is the specific heat of the metal? metal = ____ J/kg*C?
asked by john 
physics
10 kg of ice at 4 C is dropped into 15.1 kg of water at 36 C. What is the final temperature of the mixture? T_final =
asked by Joe 
physics
A metal ball of mass 1.8 kg with initial temperature of 46.5 C is dropped into a container of 3 kg of water at 15 C. If the final temperature is 22.6 C, what is the specific heat of the metal? c_metal =____ J*kg*C?
asked by Joseph 
Sciene
Is meiosis actually mitosis happening twice? Why might some people say this?
asked by Susan 
math
Emily has 25 rows in her vegetable garden with 19 vegetables in each row. Her mom added 20 more vegetables in the garden. How many vegetables does she have in the garden now?
asked by Shazia 
Science
GCSE PhysicsForces affecting falling objects. My falling object is a skydiver Can you please help me to find the information needed? Nothing too complicated please. Here is a list of things I need to include but I have no idea where this information can
asked by Anonymous 
Algebra 2
sketch a graph for f(x)=2(1/2)^x +1
asked by kathy 
physics
A 1,500 kg car starts from rest and accelerates to a speed of 12 m/s over a distance of 68 m a) calculate the total work on the car b) calculate the net force that caused the car to accelerate (constant force)
asked by cee 
English
I have to write a 1000 word essay on connecting, Hamlet's dealing with rejection, depression to THE real world life. How it affect's me. So can you help me with some dot jots on how depression can relate tothe world (peoples situations) from hamlet?
asked by Nicolas 
Science
What are some ethical issues behind cloning? I already said that some people think cloning is like "Playing God".
asked by Susan 
French
I need help revising my french composition. Here is the prompt and my response: Si tu pouvais voyager n’importe où iraistu? Avec qui? Qu’estce que vous y feriez? Attention: tu vas avoir besoin de savoir quelle préposition va avec le pays, ville, ou
asked by Collin 
math
he sum of three consecutive integers is 111. What are the integers? (Enter your answers as a commaseparated list.)
asked by Anonymous 
business&technical english
language is used to make comparisons in business communication
asked by zobuia 
Accounting
NOTE: I NEED HELP WITH THESE 10 QUESTIONS,IT IS AN EMERGENCY PLEASE! Use the following information to answer questions 14. The Bayside Company uses the LIFO cost flow method to value inventory. In the current year, profit at Bayside is running unusually
asked by Mia 
probability
two cards are drawn in succession without replacement from a standard deck of 52 cards. what is the probability that the first card is a spade given that the second card is a club. what is the probability that the first card is a face card(jack, queen,
asked by Daren 
chemistry
We calculated that 30.0 grams of ice initially at 10.0 Celsius and it requires 23.1 kj of energy to bring it all the way to a boil. How much additional energy does it take to convert all of the water to steam at 100 degree Celsius? How does this compare
asked by mai 
business&technical english
 means looking at a written message critically to see if revising the content will improve it.
asked by zobuia