Questions Asked on
June 1, 2013

chemistry
1)What is the correct structure of AsH3???? 2)Name the type of hybrid orbitals of central form. 3) Name the molecular geometry of compound. 4)State weather it is polar or non polar. 5) Estimate HAsh bond angle in degree. 6) what is the dominant form of
asked by Anonyms 
pre calculus
Choose the point on the terminal side of 135°
asked by Anonymous 
STATISTIC
IT IS IMPOSSIBLE TO GET 7 KINGS WHEN SELECTIONG CARDS FROM A SHUFFLED DECK. EXPRESS THE INDICATED DEGREE OF LIKELIHOOD AS A PROBABILITY VALUE BETWEEN 0 AND 1 INCLUSIVE.
asked by MAXINE 
english
the Trout" and "The Wager," Below is a chart which shows the continuum from Pessimistic to Optimistic and on which you can "gauge" where a character fits at each point in the story. For each of the stories, "The Trout" and "The Wager," decide where you
asked by sherrie 
Statistics
women's heights are normally distributed with a mean 63.1 in and standard deviation of 2.5. A social organization for tall people has a requirement that women must be at least 69in tall. What percentage of woman meet that requirement? The percentage of
asked by Jenn 
Algebra
Suppose that an insurance agent offers you a policy that will provide you with a yearly income of $40,000 in 30 years. What is the comparable salary today, assuming an inflation rate of 6% compounded annually? (Round your answer to the nearest cent.)
asked by Anonymous 
Tax Accounting
Mike purchases a heavyduty truck (5year class recovery property) for his delivery service on April 30, 2010. The truck is not considered a passenger automobile for purposes of the listed property and luxury automobile limitations. The truck has a
asked by Anonymous 
statistics
A realty company has 100 homes listed for sale. Some of these homes have fireplaces, some have garages, and some have neither. A breakdown is provided in the twoway classification table below. Fireplace No Fireplace Garage 50 30 No Garage 10 10 what is
asked by Alecia 
SAT math
1. x>152x / 3 Solve the linear inequality. Write the solution in set builder notation. So, 3x>152x, x
asked by mysterychicken 
Binomial and Poisson distribution
A machine produces ribbon in which flaws occur randomly at an average rate of one flaw in 100m. Find the probability that there are 3 or more flaws in a randomly chosen 200m of ribbon. Find the length of ribbon such that the probability that it contains no
asked by Kelvin 
chemistry
The skeletal structures of the two amino acids, glycine and lysine, are given below along with the values of the relevant acid dissociation constants (pKa). (a) For an aqueous solution of glycine alone, calculate the value of pH at which the ratio of the
asked by a 
Probability
An oildrilling company knows that it costs $25,000 to sink a test well. If oil is hit, the income for the drilling company will be $375,000. If only natural gas is hit, the income will be $130,000. If nothing is hit, there will be no income. If the
asked by Anonymous 
physics
Vector C has a magnitude 25.8 m and is in the direction of the negative y axis. Vectors A and B are at angles α = 41.9° and β = 27.2° up from the x axis respectively. If the vector sum A B C = 0, what are the magnitudes of A and B?
asked by helpp 
physics
Vector C has a magnitude 25.8 m and is in the direction of the negative y axis. Vectors A and B are at angles α = 41.9° and β = 27.2° up from the x axis respectively. If the vector sum A B C = 0, what are the magnitudes of A and B?
asked by helpp 
physics
The specific heat capacity is 1800 J/Kg/K .Calculate the amount of energy liberated when 7kg of the liquid cools from 70 Degrees Celcius to 35 degrees celcius
asked by zaheer 
Calculus help!
Does the limit of xy/(x^2 + y^2) exist as (x,y)>(0,0)? Why or why not??
asked by Liz 
math answer check
Three coins are tossed, and the number of heads observed is recorded. (Give your answers as fractions.) (a) Find the probability for 0 heads. Incorrect: Your answer is incorrect. . Your answer cannot be understood or graded. More Information Redone 0/3 was
asked by Nora 4 
math answer check
Patients who have artificial hipreplacement surgery experience pain the first day after surgery. Typically, the pain is measured on a subjective scale using values of 1 to 5. Let x represent the random variable, the pain score as determined by the
asked by Nora 57 
health
Do you believe the opportunities for continuing education and development are often more important to professionals than to other employees? why or why not?
asked by Chris 
chemistry
A pressure vessel contains a large volume of CO2 gas at 10 atm pressure. A membrane composed of a poly(ether ketone) polymer with thickness 100 microns and net effective area of 100 cm2 covers a small perforated port in the container. The solubility of CO2
asked by Anony mous 
chemistry
A pressure vessel contains a large volume of CO2 gas at 10 atm pressure. A membrane composed of a poly(ether ketone) polymer with thickness 100 microns and net effective area of 100 cm2 covers a small perforated port in the container. The solubility of CO2
asked by Anony mous 
Algebra
A goldsmith has two gold alloys. The first alloy is 20% gold; the second alloy is 60% gold. How many grams of each should be mixed to produce 40 grams of an alloy that is 30% gold? amount of 20% gold_____g Amount of 60% gold_____g
asked by Rick 
programming
You have the final sales figures for the four quarters in 2010 for Bennets Used Auto Sales, and you are to design a program that asks for the sales figures, computes the total sales for the year, and calculates and displays the average quarterly sales for
asked by Brett 
Physics
An airplane of a certain density and shape flies at a constant speed. To do so, it must fly with a certain velocity v0. If the size of the airplane is scaled up in length, width, and height by a factor of two, it can only fly above a new velocity v1. What
asked by Carlos 
physics
A car covers a distance of x,while moving at 54km/1 in 15sec.Find the value of x
asked by Navneet 
chemistry
Consider the compound NOCl. In the lewis dot structure, which element should be the central atom? Choose from following. N,O,Cl,both N or O could be in middle, both N or Cl could be in the middle,both O or Cl could be in middle,or all the elements could be
asked by Anonyms 
chemistry
What is the approximate ratio in conductivity of silicon doped with 37 ppm to silicon doped with 5 ppm
asked by nonu 
chemistry
The NN bond energy is difficult to measure. Given the values of 190 kJ/mol for the NCl bond energy and 240 kJ/mol for the ClCl bond energy, determine the maximum de Broglie wavelength of an electron capable of breaking the NN bond. Express your answer
asked by nonu 
chemistry
Calculate the surface energy of the (100) plane of niobium. The heat of atomization is 745 kJ/mol. Express your answer in J/cm2.
asked by nonu 
chemistry
You will be presented with three crystallographic directions drawn in a unit cell. Please write the identity of the direction in the space provided below each picture. Use the correct form of brackets for describing a direction, and leave no spaces between
asked by nonu 
chemistry
The NN bond energy is difficult to measure. Given the values of 190 kJ/mol for the NCl bond energy and 240 kJ/mol for the ClCl bond energy, determine the maximum de Broglie wavelength of an electron capable of breaking the NN bond. Express your answer
asked by nonu 
LIFE OREINTATION
Describe the lifestyle disease/behaviour of hiv/aids
asked by Anonymous 
life oreintation
Provide five ways in which you critically discuss how lifestyle disease/behaviour of hiv&aids impact on the teenagers
asked by syah Maphumulo 
heeelp tooough physics
A tunable capacitor (with variable capacitance) is charged by a U 0=12 V battery and then is connected in parallel to a R=3 Ω resistor. The capacitance C(t) of the capacitor is controlled so that the current in the circuit remains constant at all times.
asked by andrew 
chemistry
A comparison of density values obtained by Xray diffraction reveals that the percentages of vacant sites in aluminum (Al) are 0.0700% at 923 K and 0.0090% at 757 K. Given this data, determine the number of vacant sites per cm3 at 550 K. Express your
asked by Anonymous 
mathprobaility
Sal has a bag of hard candies: 3 are lemon and 2 are grape. He ate 2 of the candies while waiting for the bus, selecting them at random one after the another. What is the probability of at least one candy was lemon?
asked by kiki 
Eng
In which of the following sentence do you find a verb phrase? A. I shall be all that I am and more. B. June was a collector of memorabilia. C. I believed every word he said. D. The crowed roared as the bull charged. Answer is "D"
asked by Jen 
physics
Q.a cube of wood 20cm on each side,floats in water so that 30% is above the surface of the water,and 70% is below.what is the density of the wood(justify the answer) i.what mass of lead mass has to be placed on the top of the block of wood,so that it wi;;
asked by bindas 
physics
Q.A cube of wood 20cm on each side,floats in water so that 30% is above the surface of the water,and 70% is below. i.what is the density of the wood(justify the answer) ii.what mass of lead mass has to be placed on the top of the block of wood,so that it
asked by milky 
physics
Q.an aluminium can of mass 200gm contains 500gms of water at 50c.an ice cube of mass 50gms,initially at a temperature of 20c is thrown into the can of water. i.what is the final temperature onces the ice metls and comes into equilibrium? ii.now a 200gm
asked by rosy 
Math
Proma earned $82 last week. She earned $6 each hour and received a bonus of $10 for exceptional work. Which equation can be used to find h, the number of hours Proma worked last week? A. 6h+10=82 B. 6h10=82 C. 10h+6=82 D. 10h6=82 A? I used to think it
asked by Jerald 
Cultural Anthropology
Environmental determinism means: (Points : 1)
asked by Anonymous 
Set and relations
Help me understand: {5} is a subset {0,2,5} The way I read it is the only element in {5} is 5 and it is a member of the set {0,2,5}. I s this true?
asked by ray 
MathMath
3/8 < 8/23 ? Can this even be true since the first fraction has a negative denominator?
asked by Bones 
biology
wer can i get synthetic plant hormones
asked by kjj 
chemistry
How much milk at 10 degrees would need to be added to 250 ml of coffee at 95 degrees celsius to cool the coffee to 90 degrees celsius
asked by lisa 
Physics
A crate of eggs is located in the middle of the flat bed of a pickup truck as the truck negotiates a curve in the flat road. The curve may be regarded as an arc of a circle of radius 37.9 m. If the coefficient of static friction between crate and truck is
asked by Josie 
C programming
Build a program that allows a user to select one of the following four menu options: enter new integer value, print pointer address, print integer address, and print integer value. For this program you will need to create two variables: one integer data
asked by pep 
Music
23. If the fourth chord of a note is a seventh above the root, the chord is: a. a 7th chord b. a triad c. nontertian d. a 4th chord Not sure 33. The inversion of triads can be written with roman numerals and a. letters b. small numbers c. percentage signs
asked by mysterychicken 
math
2/3 + 3/5= 5/6  3/4= 3/5 X 2/5= 1/2 DIVIDE 5/8=
asked by Andrea 
Maths
Given 18 feet of fencing, what is the largest area that you can enclose with the fencing?
asked by Anonymous 
stats
Test scores on a university admissions test are normally distributed, with a mean of 500 and a standard deviation of 100. 4 marks a. What is the probability that a randomly selected applicant scores between 425 and 575? 4 marks b. What is the probability
asked by sue 
physics
When serving, a tennis ball is almost motionless when it is slammed by the racquet. A force sensor in an experimental tennis racquet measures a force of 80 N during the impact with a 0.058 kg tennis ball. The impact lasts for 0.04 seconds. If the ball was
asked by Anonymous 
Maths
What is the least amount of fencing you would need in order to enclose an area of 72 square feet?
asked by Anonymous 
Math
Solve the following: 56 is ______% of 125 What number is 45% of 680? Solve the following: 315 is 126% of If a number increases from 47 to 70.5, what is the rate of increase?
asked by Nena 
SAT Math
Can I please get some help on these questions: 1. If , find the value of 2 square root of 17x = 2x10, find the value of x/4. 2. If absolute value of 3x+6 < 9, then which of the following is a possible value of x ? My answer choices are 7, 1, 5, 1, 10.
asked by mysterychicken 
Science
A sample of gas under a pressure of 622 kPa has a volume of 233 mL. The pressure is increased to 988 kPa, while the temperature remains constant. What volume will the gas occupy at this pressure?
asked by Yasmen 
earth science
If a sample contains 50g of carbon14 and 50g nitrogen14 how many half lives has it undergone?
asked by Deb 
Math
Hi I'm really struggleing with this intergral, tried so many ways, just not getting it. Find the integral of Cot^2 X cos X dx
asked by Serina 
Math
write an expression equivalent to 1/4(8y10)
asked by Bri 
Physics 1 College Level
If D = 3204 meters and d = 1247 meters in the figure, what is the magnitude of the force on the space ship to the nearest MN? Consider all three to be point masses. I'm not even sure to begin with this question. Any help will be much appreciated!
asked by Devin 
Physics 1 College Level
A planet/moon has a mass of 77.89 × 1023 kg and a radius of 7.9 × 106 meters. What is g on the surface to the nearest hundredth of a m/s2? Once again, not really sure where to go with this. Out of the 10 problems I've only had trouble with this and one
asked by Devin 
Healthcare Management
Do you believe the opportunities for continuing education and development are often more important to professionals than to other employees? why or why not?
asked by Chris 
Math
4x4+4x4+44x4=?
asked by Barry 
math answer check
x is a binomial random variable. (Give your answers correct to three decimal places.) (a) Calculate the probability of x for: n = 1, x = 0, p = 0.15 P(x) = Changed: Your submitted answer was incorrect. 0.15 x 0 = 0 . (b) Calculate the probability of x for:
asked by Nora 57 
Statistics normal distribution
54% of the children in a large city are boys. Using a suitable approximation, calculate the probability that a random sample of 1000 children contains more boys than girls ?
asked by Kelvin 
chemistry
a mixture of 100 grams of water is mixed with 100 grams of sodium nitrate at 30 degrees celcius if filtered how much salt would be left behind
asked by Jesica 
World History
1)War over this country involved the United States during the 1960s and 1970s. in 1975 it fell under Communist control. I said South Vietnam 2)In the 1980's this nation was a world industrial leader as well as major competitor with U.S. I said China (
asked by Eri 
Science
What is the major disadvantage of using fossil fuels?
asked by Juanita 
Statistics
Darned old Foofy! Foofy computes the x̅ (MEAN) from data that her professor says is a random sample from population Q. she correctly computes that this mean has a zscore of +41 on the sampling distribution for population Q. Foofy claims she has proven
asked by Mari 
Science
What are the names of three alternative sources of energy and one disadvantage of each?
asked by Divine 
Statistics
The diameter of an electric cable is normally distributed, with a mean of 0.7 inch and a standard deviation of 0.01 inch. What is the probability that the diameter will exceed 0.71 inch?
asked by Anonymous 
statistics
The diameter of an electric cable is normally distributed, with a mean of 0.7 inch and a standard deviation of 0.01 inch. What is the probability that the diameter will exceed 0.71 inch?
asked by Anonymous 
Math
Joe weighs 30 lbs less than twice ken's weight. If ken gains 10 pounds then together they would weigh 250 pounds. How much does each of them weigh? let x be ken's weight. thanks
asked by Paige 
Math
Can someone answer a question similar to a and b so I can use as an example. Consider the following binomial random variables. (a) The number of tails seen in 47 tosses of a quarter. (i) Find the mean. (Give your answer correct to one decimal place.) (ii)
asked by Nora 512 
math
Verify that the function f(x)=x^36x^2+8x+4 satisfies the three hypotheses of Rolle's Theorem on the given interval [0,4]. Then find all numbers c that satisfy the conclusion of Rolle's Theorem
asked by Kay 
Science
Names of three alternative energy sources and one disadvantage of the three alternative energy sources.
asked by Juanita 
Math
What music plan is a better deal? site A: $29 per month plus .80 cents per download site B: $17 per month plus $1.19 per download write an equation and show how many downloads make site A a better deal.
asked by Rihanna 
Math
What is the percent markup based on cost for the shirts in the previous question? (Round percent to the nearest tenth.) I got .72% What is the percent markup based on selling price for the Western Wear shirts? (Round percent to the nearest tenth.)
asked by April 
arithmetic
Assume you roll a fair dice twice. Two rolls are independent and identically distributed, with probability of rolling a particular number being 1/6. So, for instance, the probability of rolling 5 and then 2 is P(5,2) = P(5) ⋅ P(2) = 1/6 ⋅ 1/6 = 1/36
asked by Anonymous 
physics
The resultant of two forces,one is double in magnitude than the other,is perpendicular to smaller force.What is the angle between the two forces?
asked by abdul hameed 
arithmetic
Assume you have an unfair coin  the one that lands heads with probability P (not known beforehand). You have rolled such a coin 20 times and got 16 heads and 4 tails. What is the best estimator of P, Pˆ? (Hint: it is the one based on sample mean.)
asked by Anonymous 
English
1. He is looking at the baby happily. 2. Happily, he is looking at the baby. 22. He is happily looking at the baby. 3. He looks around happily. 4. They are talking with each other happily. (Are they all grammatical? What is the difference between #1 and
asked by rfvv 
arithmetic
Assume you roll a fair dice twice. Two rolls are independent and identically distributed, with probability of rolling a particular number being 1/6. So, for instance, the probability of rolling 5 and then 2 is P(5,2) = P(5) ⋅ P(2) = 1/6 ⋅ 1/6 = 1/36
asked by Anonymous 
chemisrty
a. At low temperatures, 1,1,2, trichloro ethane is not free to rotate about the carboncarbon bond. It will be stuck in its lowest energy position. Is 1,1,2, trichloro ethane a chiral molecule when trapped in this position? 1,1,2, trichloro ethane is
asked by Anonymous 
chemisrty
Will 1,1,2, trichloro ethane rotate polarized light if it is cooled to low temperature and trapped in its lowest energy position? Yes, under all circumstances. Yes, but only if it is chiral. No, it will never rotate light. No, there is a racemic mixture
asked by Anonymous 
programming
b. Write a wellcommented C++ program that reads data from the input file employee.txt. Each input line consists of last name, first name, base salary, total sales, and number of years of service. Store the output in the file employees_payCheck.txt. Format
asked by karl 
English
1. They also sell big, soft pretzels. 2. They also sell big and soft pretzels. (Which one is grammatical?) 3. Try a taste of New York! 4. Try on a taste of New York! (Are both grammatical?) 5. Q3: What cart sells drinks, hotdogs and pretzels? Does a hotdog
asked by rfvv 
Chemistry
How can you determine the oxidizing agent in a reaction of iron with chlorine?
asked by helppp! 
chemisrty
The graph below shows two conductivity curves with respect to temperature of a germanium semiconductor. In one case, there is dopant added to the sample, and in the other there is none. Using some or all of the labels below, please drag and drop the labels
asked by Anonymous 
algebra
what is x squared z to the fifth power divided x x to the sixth power z to the fourth power
asked by naisan 
math
A CatFood Company makes a special kind of cat food. It consist of 40% meat powder and 60% grain. The meat powder costs $1.20 per pound. The grain costs 80 cents per pound. What is the cost of the raw materials per pound of cat food?
asked by treei 
statistics
Measurement Scales Practice 1. Indicate the first letter (N, O, I, R) of the highest possible scale for each of the following measures, where N is lowest and R is highest: Measure Highest Scale a. Feet of snow Interval b. Brands of carbonated soft drinks
asked by Lynn 
fisica
Combine φ=4r−2i with Snell's Law to express the angle φ as a function of i and n only. (a) Evaluate φ(i,n) for the following values (give your answers in degrees): i=3∘, n=1.35
asked by elver 
Statistics
Step 2  Transform the sample mean into a zscore (p. 133) x̅ = 26, N = 30, σ_X=6 Z = (X µ)/(σ_X/√N) = (24 26)/(6/5.4772) = (2)/(1.0955) = 1.8257 Z =  1.83 The zscore table notes that the area between the mean of 26 and the zscore of 1.83 =
asked by Mari 
Statistics
(a) With n=12 and p =0.4 find the binomial probability that p(9) by using a binomial probability table. (b) np ¡Ý5, nq¡Ü5, also estimate the indicated probability by using the normal distribution as an approximation to the binomial, is np < 5 or nq < 5
asked by Jenn 
math
Epicure Market prepares fresh gourmet entrees each day. On Wednesday, 80 baked chicken dinners were made at a cost of $3.50 each. A 10% spoilage rate is anticipated. At what price should the dinners be sold to achieve a 60% markup based on selling price?
asked by codey 
help me please
You are shopping for an executive desk chair at The Furniture Gallery. You see two you like on sale. Chair A was originally $119.99 now on sale for $79.99 and Chair B was originally $149.99 now on sale for $89.99. Calculate the markdown percent of each
asked by April 
chemistry
The structure of graphite is shown below. What kind of hybridization exists for each carbon in the lattice? sp sp2 sp3 sp3d1 sp3d2 What kinds of bonds are present in this structure? hydrogen bonds hydrophobic interactions sigma sp sigma sp2 sigma sp3 sigma
asked by Anonymous 
chemistry
You will be presented with three crystallographic directions drawn in a unit cell. Please write the identity of the direction in the space provided below each picture. Use the correct form of brackets for describing a direction, and leave no spaces between
asked by Anonymous 
english
Fill in each of the boxes below with information about your short story using from three to five sentences for each box. Click here to download a copy of this chart in rich text format. Describe the appearance of your protagonist Describe the appearance of
asked by sherrie 
Chemistry
At very low temperatures the carrier concentration in one of these materials appears to diminish very rapidly. Why is this? Please choose the option that BEST describes this phenomenon.
asked by Anon 
Math
I am doing an assignment on probability. It sais.. "By the start of the 21st century, only 1 in 6 babies in America was born with blue eyes. What is the probability that at least 1 out of 2 babies has blue eyes? And then it sais " What might be a good
asked by Kortny 
Math
Michael Reeves, an ice cream vendor, pays $17.50 for a fivegallon container of premium ice cream. From this quantity he sells 80 scoops at $0.90 per scoop. If he sold smaller scoops, he could sell 98 scoops from the same container; however, he could
asked by Nena 
chemistry
When 5.00 g of barium hydroxide are added to 250.0 mL of 0.250 hydrochloric acid in a calorimeter, the temperature off the solution increases from 25.0 C to 28.0 C. Calculate the enthalpy ( in kJ per mole of water) given the density of the hydrochloric
asked by Jen 
math algebra
What percent of $99.99 is $59.99?
asked by pollu 
Math check my answer
What music plan is a better deal? site A: $29 per month plus .80 cents per download site B: $17 per month plus $1.19 per download write an equation and show how many downloads make site A a better deal. My answer:: .80x + 29 > 1.19x + 17 after all my other
asked by Rihanna 
math
Macy's originally sold designer jackets for $2.77.if they are put on sale at a markdown of 22%,what is the sale price
asked by sherry 
to:writeacher
In response to a typo which I immediately corrected: Writeacher writes: "@allthehomework needs to stop answering questions since he/she often has to apologize or is not 100% sure of what he/she has written. =(" That was not very classy Writeacher. I see
asked by @allthehomework 
check math
If boys ad girls are equally likely to be born, what is the probability that in a randomly selected family of eight children, there will be at least one a boy. Answer 0.984
asked by Sue 
heeeeeeeeeeeeelp math
Miles has 4 Lego people in his Lego town. A Lego person consists of exactly 1 set of legs, a torso, and a head. All of these body parts are distinct. Miles' son comes in and takes apart the Lego people. How many different sets of 4 Lego people can be
asked by andrew 
heeeeeeeeeelp math
Miles has 4 Lego people in his Lego town. A Lego person consists of exactly 1 set of legs, a torso, and a head. All of these body parts are distinct. Miles' son comes in and takes apart the Lego people. How many different sets of 4 Lego people can be
asked by andrew 
heeeeeeelp geometry
In a triangle ABC, BK is an angle bisector. A circle with radius 5/3 passes through the vertex B, intersects AB at a point L, and is tangent to AC at K. It is known that the length of AC is 3√3, and the ratio of the lengths AK to BL is 6:5. The area
asked by andrew 
chemistry calculation
I need to know what volume of liquid phosphoric acid at 85%, H3PO4 with density of 1.685 will replace 5 gr
asked by sue 
chemistry calculation
I need to know what volume of liquid phosphoric acid at 85%, H3PO4 with density of 1.685 will replace 5 grams of powdered NaH2PO4. H2O. thanks
asked by sue