Questions Asked on
March 18, 2013

proprotions
why did the envelope lose the race with the cardboard box?
asked by Anonymous 
Chemistry
Solutions of sodium thiosulfate are used to dissolve unexposed AgBr (Ksp = 5.0 1013) in the developing process for blackandwhite film. What mass of AgBr can dissolve in 1.40 L of 0.425 M Na2S2O3? Ag+ reacts with S2O32 to form a complex ion. Ag+(aq) + 2
asked by Howard 
physics
A spherical bowling ball with mass m = 4.1 kg and radius R = 0.116 m is thrown down the lane with an initial speed of v = 8.9 m/s. The coefficient of kinetic friction between the sliding ball and the ground is ¦Ì = 0.34. Once the ball begins to roll
asked by JOJO 
math/ratios
There are 77 students in the student council. The ratio of girls to boys is 7:4. How many girls are in the student council?
asked by sam 
alg 1
the length of a rectangular garden is 8 feet longer than the width. The garden is surrounded by a 4foot sidewalk. the sidewalk has an area of 320 square feet. find the dimensions of the garden. please help
asked by darlena 
Chemistry
Calculate the pH at the equivalence point for the titration of 0.130M methalamine (CH3NH2) with 0.13M Hcl. The Kb of methyl amine is 5.0x104.
asked by Joe 
World History (Ms. Sue)
What was Lincoln's reasons for not emancipating slaves when the war began? My answer: Lincoln did not believe he had the power under the Constitution to abolish slavery where it already existed. Nor did he want to anger the four slave states that remained
asked by Anonymous 
Cultural Anthropology
In a band society, who would most likely be responsible for punishing a murderer
asked by Anna 
Algebra
A bag holds 2 yellow, 1 green, and 2 red marbles. If you were to draw a marble from the bag 150 times, and replace it after each draw, how many yellow marbles would you expect to draw? A.50 B.60 C.30 D.120 I think it is B...?
asked by Cassie 
Algebra
a and b are positive numbers that satisfy the equation \frac {1}{a}  \frac {1}{b} = \frac {1}{a+b} . Determine the value of \frac {a^6}{b^6} + \frac {b^6} {a^6} .
asked by Anonymous 
Physics
A test charge of +3.00 106 C experiences a downward electrostatic force of 11 N when placed at a certain point in space. What are the magnitude and direction of the electric field at this point?
asked by Melissa 
Algebra
If you rolled a number cube 100 times, how many times would you expect to get an even number? A.25 B.75 C.50 D.38 I think it is C...?
asked by Cassie 
math
How do you solve: imgur[dot]com/PlcCL8s [I had to upload cause its impossible to write proper notation here.
asked by Hasane 
algebra
What is the probability that a month picked at random will have 31 days? A.5/12 B.4/12 C.7/12 D.8/12 I think it is C...?
asked by Cassie 
Englsih II
Review the poems we have studied in this unit and select the one that appealed to you most. Analyze the poem by answering the following questions. Cite specific lines or phrases from the poem to support your ideas. Be certain to identify your poem by both
asked by Carlos 
MathsQuery
An NGO is helping the poor people of earthquake hit village by providing medicines. In order to do this they set up a plant to prepare two medicines A and B. There is sufficient raw material available to make 20000 bottles of medicine A and 40000 bottles
asked by anoynomous 
geometry
in the accompanying diagram, RST is a right triangle, SU is the altitude to hypotenuse RT, RT=16 and RU=7
asked by Anonymous 
Chemistry
Calculate the molar concentration of uncomplexed Zn2+ (aq) in a solution that contains 0.22 mol of Zn(NH3)4 2+ per liter and 0.3109 M NH3 at equilibrium. Kf for Zn(NH3)4 2+ is 2.9 X 10^9 I started this way... (0.3109 + 4)2/0.22x)= 2.9 X 10^9
asked by Felix 
Algebra
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? A.1/5 B.2/5 C.24/25 D.4/5 I think it is D...?
asked by Cassie 
Math
Frank has 3 nickels, 5 dimes, and 2 quarters. What is the range, mean, median, and mode of the values of Frank's coins?
asked by Danny 
algebra
1.You flip a coin 30 times and get heads 11 times, so the chance of getting heads is 11/30. Is this an example of theoretical or experimental probability? theoretical experimental * 2.You have made 3 out of 10 of your last free throws. How many free throws
asked by Cassie 
Algebra
You roll a pair of number cubes and then flip a coin. Is this an example of independent or dependent events? A.independent B.dependent This is A...right?
asked by Cassie 
Algebra
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? A.1/6 B.6/18 C.3/20 D.1/9 My choice is A
asked by Cassie 
economics
Bob's lawn mowing service is a profitmaximizing competitive firm. Bob mows lawns for $27.00 each. His total cost each day is $280 , of which $30 is a fixed cost. He mows 10 lawns a day. What can you say about Bob's shortrun decision regarding shutdown
asked by raja 
organic chemistry
when i add methyl salicylate to aqueous sodium hydroxide, immediately a white solid forms... that is sodium salicylate is it?? Since it hasn't been heating under reflux yet.
asked by Anonymous 
science
a man wishes to swin across a river 600 m wide. If can swim at the rate of 4 km/hr in still water and the river flows at 2 km/hr. Then in what direction must he swim to reach a point exactly opposite to the starting point bnd when will he reach it ?
asked by Updesh Shah 
Chemistry
A reaction mixture of 4.0 mL of 0.002 M SCN and 5.0 mL of 0.002 M Fe3+ is diluted to 10.0 mL with 0.1 M HNO3 to form the bloodred FeNCS2+ complex. The equilibrium molar concentration of the FeNCS2+ determined from a standardization curve is 1.5x10^4
asked by Anonymous 
math
A community college has 2,000 students and 50 instructors. Next year the enrollment will be 6,000. How many new instructors should be hired if the college wants to keep the same studentto instructor ratio?
asked by naomie 
Chemistry (reposting)
In which of the following solution would CaC2O4 have the highest molar solubility? Please help. A) 0.01 M NaCl B) 0.01 M H2C2O4 C) 0.01 M Na2C2O4 D) 0.01 M NaHC2O4 E) 0.01 M HCl I think it is E because it is a strong acid and will completely dissociate
asked by Felix 
Physics
A bungee jumper (m = 66.00 kg) tied to a 39.00 m cord, leaps off a 69.00 m tall bridge. He falls to 5.00 m above the water before the bungee cord pulls him back up. What size impulse is exerted on the bungee jumper while the cord stretches?
asked by Hilary 
Physics
A bungee jumper (m = 66.00 kg) tied to a 39.00 m cord, leaps off a 69.00 m tall bridge. He falls to 5.00 m above the water before the bungee cord pulls him back up. What size impulse is exerted on the bungee jumper while the cord stretches?
asked by Hilary 
Math
Need help on the question below. Which number belongs to the set of rational numbers but does not belong to the set of whole numbers? a. 1 b. 0 c. 1 d. 2 Thanks...
asked by Brandi 
physics
A ball whirls around in a vertical circle at the end of a string. The other end of the string is fixed at the center of the circle. Assume that the total energy of the ballEarth system remains constant. (a) What is the tension in the string at the bottom?
asked by ahmad 
proportions
an ant that weighs 0.004 oz can lift a bread crumb that weighs 0.2 oz. if a 120pound person were proportionally as strong as the ant,how much could the person lift?
asked by Anonymous 
stats.
The GMAT test is required for admission to most graduate programs in business. In a recent year, the GMAT test scores were normally distributed with a mean of 550 and standard deviation of 100. A. Find the first quartile for the distribution of GMAT
asked by Christina 
physics.
1) A racing car has a mass of 1525 kg. What is its kinetic energy if it has a speed of 35 m/s? * 23 Conservation of Momentum 2) A 3.0 kg ball is moving at 3 m/s and strikes a 1.5 kg ball moving at 2 m/s. After the collision, the 1.5 kg ball moves to the
asked by Isis 
college physics
if a girl pulls on a 15 kg wagon with a constant horizontal force of 35N.Her friend pushes on the wagon in the same direction with a constant horizontal force of 10 N. and there is a friction force of 15 N. I need to draw a diagram of this problem and
asked by patti 
Chem
What is the specific heat in J/g Celsius for a metal sample with a mass 95.6 g which absorbs 841 J of energy when it's temperature increases from 30.0 degrees Celsius to 98.0 degrees Celsius?
asked by Mike 
Ýndustrial Engineering
The figure shows the paths of a golf ball your friend drops from the window of her apartment and of the rock you throw from the ground at the same instant. The rock and the ball collide at x = 41.00 m, y = 17.02 m, and t = 2.94 s. If the ball was dropped
asked by Ozgun 
algebra
an object is launched vertically in the air at 29.4 meters per second from 10 meter tall platform . find its maximum height in seconds and in meters ?
asked by zz 
algebra
an object is launched vertically in the air at 29.4 meters per second from 10 meter tall platform . find its maximum height in seconds and in meters ?
asked by zz 
writing english
Hi, I need help with a paper I wrote on an analysis of an advertisement. This is the ad i analysed facebook.cm/video/video.php?v=176110229125188 Could someone please tell me the Ethos and Pathos for this ad ? My ethos was  The text embellishes character
asked by Ying 
physics
a disc of radius 5.70 cm rotates about its axis and a point 1.90 cm from the center of the disc moves 34.5 cm in 12.2 s .calculate the angular velocity of the disc.
asked by fernando guzman 
PHYSICS
A bottle containing 4 kgof water at a temperature of 15°Cis placed in a refrigerator where the temperature is kept at 2°C.How much heat is transferred from the water to cool it to 2°C?
asked by B 
math
find the volume of a square pyramid. Round to the nearest tenth(slant height=20 base=13)
asked by Shay 
Chemistry
What is the pH of a saturated zinc hydroxide solution?
asked by Julian 
math
Jill Ley took out a loan to pay for her child's education for $60,000. The loan would be repaid at the end of 8 years in one payment with an interest of 6 percent. The total amount Jill has to pay back at the end of the loan is: (Points : 1)
asked by Laura 
11
A ball is dropped vertically from height of 30 meters after bounces.The ball reaches a max height to 60% of height of the previous bounce. What are the terms of the sequence. What is the height to the nearest tenth of a meter of the ball after the tenth
asked by Annie 
Chemistry
A 8.5 x 10^3 M solution of acetic acid is 4.6% ionized at 25 degree Celsius. in a 8.5 X 10^4 M solution, the percentage of ionization would be? A.the same B.>4.6% C.
asked by V 
Physics
A light beam containing red and violet wavelengths is incident on a slab of quartz at an angle of incidence of 81.0°. The index of refraction of quartz is 1.455 at 660 nm (red light), and its index of refraction is 1.468 at 410 nm (violet light). Find the
asked by AM 
chem
Indicate whether the pH increases, decreases, or remains the same when each of the following is added. (CH3NH3)Cl to a solution of CH3NH2 pyridinium nitrate, (C5H5NH)(NO3) to a solution of pyridine, C5H5N sodium formate to a solution of formic acid how do
asked by hannah 
math 140
There were 610 people at a play. The admission price was $3.00 for adults and $1.00 for children. The admission receipts were $1,250.00. How many adults and children attended?
asked by betsy 
Health
You've received an invoice for $3000.00 with terms of 3/10, 1/20.n/30. How much will you have to pay if you pay the bill in 12 days.
asked by Janette 
physics
An aluminum wing on a passenger jet is 38 mlong when its temperature is 23°C.At what temperature would the wing be 2 cm (0.02 m) shorter?
asked by Brian 
mathssurface area
Cylindrical groove is made in a cylindrical piece of wood of length 17.5cm. The groove is filled with graphite and the cylindrical graphite block is of same length as that of wooden piece. If the diameter of the graphite cylinder is 3mm and outer diameter
asked by anoynomous 
proportions
a locomotive is 58 ft long and 11 ft wide.a special effects designer makes a model that is 20 in. long. how wide should it be?
asked by Anonymous 
physics
Why projectiles launched at complimentary angles have the same range?
asked by JenniferG 
English
hans uses a wheelchair. although he has a ramp to get in his house, he finds it difficult to get his wheelchair chair up the ramp. which modification would make it easier for hans to get in his house? a. increase the length of the ramp b. increase the
asked by mary 
college physics
If a girl drops a coin into a wishing well. After exactly 5 seconds she hears it splash into the water. How fast was the coin going after 1 second? After 2 seconds? How fast was the coin going when it hit the water? How far down is the water? Could you
asked by patti 
homework
What is a nouns Reggie bought a computer today at the store for $700.
asked by fermin Itzep 
mathssurface area
A cone 7dm high and 6 dm in diameter is placed on the ground. Sand is poured over it until conical heap 21 dm high and 33 dm circumference at the bottom is formed. Find how many m^3 of sand is there?
asked by anoynomous 
Chemistry
At a given Temperature, the elementary reaction AB in the forward direction is first order in A with a rate constant of 3.90*10^2s^1. The reverse reaction is first order in B and the rate constant is 8.20*10^2s^1. What is the value at equillibrium for
asked by Christina 
physics
A stone of mass 0.55 kilograms is released and falls to the ground. Measurements show that the stone has a kinetic energy of 9.8 joules at the point of impact with the ground. What is the stone's velocity when it hits the ground?
asked by Anonymous 
Physics
If a 1.0m crowbar is placed uner a 143 kg rock at a point 20.0cm from the end of the bar, what is the IMA of the crowbar?
asked by Wanda 
Physics
A 80 kg climber is standing horizontally on a perfectly vertical cliff face. The climber is 1.8 m tall and is attached by a 2 m long rope fastened around their middle to a point on the cliff above them. What is the normal force the cliff face exerts on the
asked by Stranger 
Physics
A charge of 3.66C is fixed at the center of a compass. Two additional charges are fixed on the circle of the compass (radius = 0.0978 m). The charges on the circle are 4.04C at the position due north and +6.20C at the position due east. What is (a) the
asked by Ashley 
statistics
The time to fly between New York City and Chicago is uniformly distributed with a minimum of 120 minutes and a maximum of 150 minutes. What is the standard deviation?
asked by Bree 
math
a right triangle has an acute angle(theta) suck that cot(theta)=15. find cos(theta)
asked by brenna 
....
hans uses a wheelchair. although he has a ramp to get in his house he finds it difficult to get his wheelchair up the ramp. which modification would make it easier for hans to get in his house? a. increase the length of the ram b. increase friction between
asked by mary 
physics
In an arcade game a 0.099 kg disk is shot across a frictionless horizontal surface by compressing it against a spring and releasing it.If the spring has a spring constant of 244 N/m and is compressed from its equilibrium position by 4 cm, find the speed
asked by Anonymous 
World History (Ms. Sue)
Why was the immediate impact of the emancipation proclamation limited? My answer: The impact was limited because most of the slaves that Lincoln intended to liberate lived in areas distant from the Union troops that could enforce his proclamation?
asked by Anonymous 
probability math
bill is on the school archery team. the target has a center bull'seye and two rings around the bull'seye. the table gives the probabilities of each outcome. what is the probability that bill will get the next arrow in the inner or outer ring?express your
asked by wayne 
Art Ms. Sue please
1. This applied artist creates the forms of manufactured products. (1 point) graphic designer industrial designer interior designer stage designer 2. This is one task of an industrial designer. (1 point) create nonfunctional products create unattractive
asked by Delilah 
chemistry
Rank the following 3 compounds in terms of increasing boiling point: CCl4, CH4, CH2Cl2  Rank the following 3 compounds in terms of increasing boiling point: CF4, CH4, CH2F2  Water, H2O, is a liquid at room temperature. Hydrogen selenide, H2Se, is a
asked by adex 
chemistry
a 225.0 g sample of an unknown, silver, pure metal was heated to 95.5 degrees celsius then put into 150.50 g of water at 22.5 degrees celsius. the water was heated by the hot metal to a temperature of 31.4 degrees celsius. what is the specific heat? what
asked by brittany 
Chemistry
Question 9 Marks: 2 In the reaction: Zn + 2 HCl ZnCl2 + H2 An excess of Zn is reacted with 300.0 g of HCl. How many grams of H2 will be produced?
asked by Lindt 
Stats.
The average age of a vehicle registered in the United States is 8 years, or 96 months. Assume the standard deviation is 16 months. If a random sample of a group of 48 vehicles is selected find the probability that the mean of the group’s age is between
asked by Christina 
World History (Ms. Sue)
How did the Emancipation Proclamation change the role of African Americans in the war? My answer: The Emancipation Proclamation delared that AfricanAmerican men would be able to "be received into the armed services of the United States," which also lead
asked by Anonymous 
physics
A 7·cm tall candle is placed 125·cm from a lens with a focal length of +25·cm. Note: enter the absolute value of your answers for all distances and heights ... use the signs to determine the type and orientation of the images. a) How far from the lens
asked by wally 
Chemistry
How many grams ammonium chloride and how many milliliters 3.0 M sodium hydroxide should be added to 200 ml of water and diluted to 500 ml to prepare a buffer of 9.50 with a salt concentration of 0.1 M? Ka=9.24
asked by  
Chemistry
What is the molarity of a salt solution that is made from 31.0 grams of Ca3(P04)2 placed in a volumetric flask and filled to the 2 liter line with distilled water?
asked by Matt M 
jiskha
Lol, I have a quick question...If you don't mind. Do you hink jiskha will have thier own app one day? It's so tiring, because you need wifi right lol just curious.
asked by katlyn 
English
1. I am good at computers. 2. I am good with computers. (Are both the same in meaning?) 3. I am good at using computers. 4. I am good with using computers. (Are both the same and grammatical?)
asked by rfvv 
chemistry
how many grams of Na2SO4 can be produced by the reaction of 250g of NaOH with sufficient H2SO4?
asked by Marisela 
math
a species of orchid is being studied. The population 'p' at time 't' years after the study started is assumed to be p = 2800ae^0.2t/1 + ae^0.2t where 'a' is a constant. Given tnat there were 300 orchids when the study started. a. show that a =0.12 b. use
asked by lindsay 
physics
a disc of radius 5.70 cm rotates about its axis and a point 1.90 cm from the center of the disc moves 34.5 cm in 12.2 s .calculate the angular velocity of the disc.
asked by fernando guzman 
english
Write the pronoun in these sentences. Then write the underlined words,that they replace. " Let us think of a way to clean up litter," said Matt and Lynn. ( the underlined word is Matt and Lynn)
asked by Robert 
statistics
Suppose we take a random sample of size n from a normal population with variance, σ2 . It can be shown that (n−1)s2/σ2 has a chisquare distribution with n−1 degrees of freedom, where s is the sample variance. Below is a random sample of size 8 drawn
asked by sandy 
math
The time is 5:15. Is the hour hand closer to the 5 or the 6? Why?
asked by Anonymous 
physics
A(n) 96.1 g ball is dropped from a height of59.1 cm above a spring of negligible mass.The ball compresses the spring to a maximum displacement of 4.75403 cm.The acceleration of gravity is 9.8m/s^2. Calculate the spring force constant k. Answer in units of
asked by Anonymous 
US History
I have 3 History question that I am completely stuck on. Please help? Thanks Which answer best describes an important outcome of the Gibbons v. Ogden court case? The case set definitions for navigation and placed state control over all coastal and river
asked by Kaelyn Rae 
language arts Ms. Sue please
4. "Brer" is dialect for briar. brother. Mister. brawny. 5. What is the main reason to ask questions as you read a story? to describe the characters to summarize the plot to identify the author’s purpose to aid in your comprehension My answers: 4.
asked by Delilah 
Chem
What is the specific heat in J/g Celsius for a metal sample with a mass 95.6 g which absorbs 841 J of energy when it's temperature increases from 30.0 degrees Celsius to 98.0 degrees Celsius?
asked by Mike 
chem
Please help me balance this equation: I just can't get it right. Do you have any strategy you use to solve such equation balancing if so please help me. Ba(ClO3)2(aq)+ Na3PO4(aq)> Ba3(PO4)2(s)+NaClO3(aq) Thanks alot!!:)
asked by katlyn 
College Mathematics
U.S. Presidents. The ages of the 44 presidents at their first inauguration (as of 2011) are: 57 57 49 52 50 42 54 55 64 61 61 64 56 47 51 51 56 46 57 54 50 46 55 56 60 61 54 57 68 48 54 55 55 62 52 47 58 51 65 49 54 51 43 69 a. Construct a frequency
asked by slomomo 
Physics
Betty weighs 449 N and she is sitting on a playground swing seat that hangs 0.55 m above the ground. Tom pulls the swing back and releases it when the seat is 0.76 m above the ground.The acceleration of gravity is 9.8 m/s^2. How fast is Betty moving when
asked by Anonymous 
chemistry
Carbon reacts with chlorine and hydrogen to form the compound CH3Cl. (a) Construct the structure of CH3Cl. What is the dominant form of secondary bonding for CH3Cl? Dipoledipole interactions, London dispersion forces, Covalent bonding, Ionic bonding
asked by adex 
Geometry
ABC is a right angled triangle with ∠ABC=90∘ and side lengths AB=24 and BC=7. A semicircle is inscribed in ABC, such that the diameter is on AC and it is tangent to AB and BC. If the radius of the semicircle is an improper fraction of the form a/b,
asked by Stranger 
Chemistry
How many chlorine atoms are contained in a 1.00 g sample of iron(III) chloride, FeCl3? Use the masses to two decimal places from the chart in the front of your text. Use the format 6.02E23 for 6.02 x 1023, or 6.02E23 for 6.02 x 1023,use two decimal
asked by Lindt 
science help?
(a) One such reaction fuses two nuclei of carbon12 ( 6 12C ) to form an atom of neon ( 10 20Ne ) with the emission of an αparticle. Write an equation for this process, indicating the atomic number and mass number of each of the products in the usual
asked by sam 
Management Science
Riverside oil company in eastern Kentucky produces 3 different grades of gasoline. They are regular, premium, and supreme grades. Each barrel of regular grade sells for $82 while premium grade sells for $88 per barrel and supreme grade sells for $89 per
asked by Annie 
Cultural Anthrolpogy
Anthropological research has demonstrated that supernatural beings and forces exist in what percentage of the world's cultures? A. 50 percent B. 80 percent C. 95 percent D. 100 percent My answer: C
asked by Anna 
English
1. What are you able to do? I am able to play the violin. 2. What are you able to play? I am able to play basketball. 3. What are you able to do well? I am able to dance well. 4. What are you able to play well? I am able to play this computer game well?
asked by rfvv 
Physics
A physics teacher (mass = 84.5 kg) is jogging through the woods and runs straight into a large oak tree at 3.5 m/s. Rebound speed is measured at 2.3 m/s in the opposite direction. If the time of contact with the tree is 45 milliseconds, what is the
asked by Will 
U.S. History
What occurred at My Lai? A.Vietcong guerrillas surrendered. B.U.S. forces suffered a crippling defeat. C.Vietnam became unified under one flag. D.American soldiers killed hundreds of Vietnamese civilians. I think it is D...?
asked by Cassie 
Chemistry ....help
If NaNO3 is cooled from 70C to 10C ; how much solid NaNO3 will come out of solution as a solid salt? Help me !!!
asked by Maria 
physics
An ore car of mass 36000 kg starts from rest and rolls downhill on tracks from a mine. At the end of the tracks, 21 m lower vertically, is a horizontally situated spring with constant5.1×10^5N/m.The acceleration of gravity is 9.8 m/s^2. Ignore friction.
asked by Anonymous 
urgent maths pls
A goat is tied at point A with a rope of length(L). How long can L be so that the goat can feed on exactly half of the field if the field is a circle.
asked by me 
physics
Calculate a person's hang time if he moves horizontally 2 m during a 1.39 m highjump.
asked by Anonymous 
Rhts
If 13sinx+5=0 and x[0;270],determine witout the use of a calculator,the value of sin2x
asked by Zinhle 
Algebra
3 real numbers that form a geometric progression have sum equal to 175 and product equal to 17576. What is the sum of the largest and smallest numbers?
asked by John 
Math
Do you think regular or irregular polygons are used more frequently in the design of objects and buildings in the world???
asked by Angela 
probability math
bill is on the school archery team. the target has a center bull'seye and two rings around the bull'seye. the table gives the probabilities of each outcome. what is the probability that bill will get the next arrow in the inner or outer ring?express your
asked by wayne 
math/ratios
There are 77 students in the student council. The ratio of girls to boys is 7:4. How many girls are in the student council?
asked by sam 
math
Give an example of a logarithmic equation that cannot be solved and explain why it cannot be solved.
asked by Hasane 
algebra
A store mixes kenyan coffee worht $12 per kilogram and turkish coffee worth $16 per kilogram the mixture is to sell for $14 per kilogram how much of each should be used to make a 348kilogram mixture?
asked by ana 
Physics
Some rental cars have a GPS unit installed, which allows the rental car company to check where you are at all times and thus also know your speed at any time. One of these rental cars is driven by an employee in the company’s lot and, during the time
asked by Ozgun 
Physics
For a certain Chemical reaction, you find that delta H = 100kJ and delta S = 200 J/K. What is the Gibbs free energy for the reaction at: (a) room temperature (b) 800 C (c) comment on whether the reactions are spontaneous or not
asked by TIna 
math
y3K, Inc., has sales of $5,276, total assets of $3,105, and a debt–equity ratio of 1.40. If its return on equity is 15 percent, what is its net income? Can someone help with a formula?
asked by brad 
World History
Why did Lincoln choose to limit his proclamation mostly to rebellious states? My answer: Lincoln chose this because he did not want to anger the border states that remained in the Union?
asked by Anonymous 
Finance
A firm's target capital structure consists of 40 percent debt, 5 percent preferred stock, and 55 percent common equity. The firm’s cost of debt is 10%, the cost of preferred stock is 11.26%, and the cost of equity is 14 %. What is the firm's weighted
asked by John 
Science (physics)
A particle P is launched from a point O with an initial velocity of 60m/s at an angle of 30 degrees to the horizontal. At the same time, a second particle Q is projected in the opposite direction with initial speed of 50m/s from a point level with point O
asked by Joe 
Math
Which shows 18.64 rounded to the nearest tenth? My answer is 18.6 is this correct
asked by Mike 
College Mathematics
Counting principles and permutations. A social security number consists of 9 digits. How many different social security numbers are possible if repetition of digits is permitted. digits 09
asked by slomomo 
physics
A cat is stuck in a tree. You are designated with the job to get it out, yet you do not want to climb the tree, because you may get stuck as well. Instead you set up a pulley system. A rope (consider it massless) runs from the seat you sit on over an ideal
asked by Nathalia 
Chemistry
How many grams of silver nitrate must react to give 67.5 grams of Ag according to the balanced equation. Cu(s) + 2 AgNO3(aq) > Cu(NO3)2(aq) + 2 Ag(s)
asked by Lindt 
Chemistry
What is the mass of iron (g) produced from 227.4 of iron(III) oxide ?
asked by Lindt 
Mathematics
For what values of m and n Does the expression ( mx^4 + nx^3 + 14x^2 + 9x + 2) divided by ( x^2 + 3x + 1 ) leaves a remainder , (11x  4 ) .. ? I divided it , nut the whole m and n remainder thingy made me so confused !!!
asked by Mihir Sriram 
phical science
Photons and neutrinos have neither charge nor mass. What are the differences between them?
asked by dior 
geometry
Consider the region in Quadrant 1 totally bounded by the 4 lines: x = 3, x = 9, y = 0, and y = mx (where m is positive). Determine the value of c such that the vertical line x = c bisects the area of that totally bounded region. Needless to say, your first
asked by borat 
math
There are 77 students in the syudent council. The ratio of girls to boys is 7:4. How many girls are in the student council?
asked by sam 
Geometry
A twoplayer game is played with two piles of stones, with sizes m,n. On a player's turn, that player can remove any number of stones from one pile, or the same number of stones from each pile. A player loses when they are unable to take a stone. If 1 \leq
asked by Anonymous 
Economics
Protecting intellectual property rights can result in new inventions that help the economy to grow. True False
asked by kim 
physics
A thin spherical shell of mass M = 2.00 kg is released from rest at the top of an incline of height H=1.31 m and rolls without slipping to the bottom. The ramp is at an angle of θ = 24.1o to the horizontal. Calculate the speed of the sphere's CM at the
asked by Sarah 
ENGLISH, HELP?
WHAT WOULD A GOOD ESSAY BE FOR A PROBLEM IN THE WORLD? LIKE POLLUTION, OR BANKRUPTCY? ANY OTHER IDEA'S?
asked by paragonnova 
Grammar
Rive each of the following sentences, correcting the problems in usage. If a sentence contains no errors, write correct. 1). Bicycling is the reason why I cam with this group to Iowa.
asked by Anonymous 
geometry
ABCD is a parallelogram. Let C′ be a point on AC extended such that the length of AC′=1.2AC. Let D′ be on the segment BD such that the length of BD′=0.9BD. The ratio of the area of the quadrilateral ABC′D′ to the area of the parallelogram ABCD
asked by deepak 
scienc
I'm driving my car of mass 1000 kg at 100 km/hr when I accidentally hit the rear end of a truck of mass 5000 kg traveling in the same direction at 90 km/hr. My car and the truck lock together and move as a single object. Let F1 be the force the truck
asked by ayan 
Physics!
The sun goes around the center of our galaxy once every 250 million years. The sun is also 2.55×10^20 m from the center of our galaxy. What is the acceleration of our sun towards the center of the galaxy in m/s^2?
asked by please..anyone help!! 
Chemistry
An experiment shows a 144mL sample of gas has a mass of 0.173g at a pressure of 720mmHg at a temperature of 31 degrees celsius. what is the molar mass of the sample of gas?
asked by Sally 
World History
Why did Northern Democrats oppose the Emancipation Proclamation? My Answer: They opposed it because they felt that the proclamation would only make the war longer by continuing to anger the South.
asked by Anonymous 
Math
A gift shop buys greeting cards at $3.50 each, and sells them at an 80% markup. At what price does the gift shop sell each greeting card?
asked by Kammi 
Language Arts
what kind of behavior were greek myths meant to encourage? i think it is mainly to discourage selfishness and greed.
asked by Anonymous 
AP Chemistry
What mass in grams of sodium hydroxide is produced if 20.0 g of sodium metal reacts with excess water according to the chemical equation? 2Na(s)+2H20(l)=2NaOH(aq)+Hs(g) How many moles of Ag can be produced if 350. g of Cu are reacted with excess AgNO3
asked by Kayla 
LAN
1. System A consists of a single ring with 100 stations, one per repeater. System B consists of four 25 stations rings linked by a bridge. If the probability of a link failure is , a repeater failure is , and a bridge failure is , derive an expression for
asked by Sandra 
Chemistry
the hydronium ion concentration of a 0.050 M solution of a weak acid is 5.9 X 10^3 M. the aciddissociation constant is 1.37 X 10^4 at 25 celsius. what is the pH of this solution? A. 0.077 B. 1.30 C. 2.23 D. 3.86 E. 5.13
asked by Chemistry 
Math
The volume of a cylinder is given by formula V= pi(3.14) r^2h where r is base radius and h is height a) the height of a cylinder of radius 5cm and volume 500. Cm^3 B) radius of base of a cylinder of volume 300 cm^3 and height 10 cm Our teacher didn't
asked by Jim 
geography
1. Bolivia is pretty isolatedwhy? 2. Columbia has an important resourcewhat is it, where is it? 3. Brazil has many resourceswhere are they? Access? 4. Why is Brazilia a forward capital? 5. What is Cuba's access? Why does the US have a trade embargo
asked by ashley 
physics
A Softball is Thrown at an angle of 45 degrees with the horizontal. It leaves the hand 2m above the ground. Its Initial Velocity is 20 m/s . Neglecting all external resistance, how far would it travel ? The point at which it hits the ground is at the same
asked by yaya 
Accounting 202
Tse does not want to give Towry this budget without making constructive suggestions for steps Towry could take to improve expected performance. Write a memo to Towry outlining your suggestions.
asked by Majava 
math
There are 3 pitchers of juice. Each student will be served ^ of the juice in a pitcher. How many students will get juice? l a. Draw lines on the pitchers to show how many students these pitchers will serve. b. Write a number model to describe the problem.
asked by alex 
Physics
A set of crash tests consists of running a test car moving at a speed of 12.2 m/s (27.3 mi/hr) into a solid wall. Strapped securely in an advanced seat belt system, a 75.0 kg (165 lbs) dummy is found to move a distance of 0.630 m from the moment the car
asked by Haylee 
math
Hi, This is the third time I posted this because it wasn't answered by anyone. PLEASE help. I think the first part is correct but I am not sure if the V=lw10 is correct. I got 10 for the number of cubes. Here is the question There is a picture with stacked
asked by ES 
Spanish
Please help me. I only want to know if I've answered these correctly thank you. 1)¿De quién es ______ suéter? A. este C. su B. esta D. esos I said the answer is A. 2)_____,¿cuánto cuestan estos tenis? Treinta pesos. A. Cuestan C. Hace dos días B.
asked by Eri 
math
I have an average of 66.67 i need a 70percent to pass the class, what do i need to get on thenext test?
asked by jenn 
Physics
A 10 g bullet is fired horizontally into a 1 kg block of wood hanging from a 1 m long string attached to the ceiling, getting stuck in the block. Due to the impact, the block then swings on the string to a maximum angle of 60 degrees with respect to the
asked by Urgent pls help 
Englsih II
Choose one of your problems (or any one from the two lists) and develop it into an organized theme in the text box provided below. There is only one assignment in this submission, but it has four steps. I. Create a broad outline, i.e., Title, Introduction,
asked by Carlos 
Trignometry
ABCD is a square where M and N are midpoints of AD and CD, respectively. If sin∠MBN=a/b, where a and b are coprime positive integers, what is the value of a+b?
asked by Stranger 
math
A cube has 8 vertices. For each pair of distinct vertices, we connect them up with a line segment. There are (8 2 )=28 such line segments. For each of these 28 line segments, we mark the midpoint. How many distinct points have been marked as the midpoints?
asked by kapil 
college physics
for the resonance frequencies: fn=nv/2L If the speed (v) doubles my fn will also doubles ? why?
asked by Anonymous 
chemistry
Construct the correct structure for AsClF42. Please construct the molecule such that the dipole is oriented vertically up or vertically down.  Name the type of hybrid orbitals the central atom forms.  Name the molecular geometry of the compound.  State
asked by adex 
....
in the digestive tract, mouth is to bolus as a. stomach is to chyme b. gallbladder is to insulin c. small intestine is t carbohydrates d. esophagus is to peristalsis
asked by mary 
Science
Need help on the question below... Which is the warmest climate zone? A. Arctic Zone B. Temperate Zone C. Tropical Zone D. Intermediate Zone Thanks :)
asked by Brandi 
Chemistry
I could use some help please. Ammmonia, NH3, can be made by reacting Nitrogen with Hydrogen. N2+3H2=2NH3 How many moles of NH3 can be made if 7.5 moles of H2 react eith enough N2? Thankyou in advance for any help
asked by Sara 
Chemistry
Question 2 Marks: 2 How many grams of oxygen gas must react to give 174.3 grams of ZnO according to the balanced equation. 2 Zn(s) + O2(aq) > 2 ZnO(s)
asked by Lindt 
Chemistry
why is it important that the equations be balanced when performing massmass stoichiometry problems?
asked by Lindt 
physics
A SUPPOSED TREASURE OF OLD SILVER JEWELRY IS UNCONVERED. a.02M^3 BOX OF THE "OLD JEWELRY" HAS A MASS OF 177KG.IS IT R EALLY OLD SILVER? IF NOT WHAT IS IT?
asked by lili 
Trigonometry
Let N be a 5digit palindrome. The probability that N is divisible by 4 can be expressed as \frac{a}{b}, where a and b are coprime positive integers. What is the value of a+b?
asked by Joe 
Algebra
3 real numbers that form a geometric progression have sum equal to 175 and product equal to 17576. What is the sum of the largest and smallest numbers?
asked by Joe 
physics
Show that the energymomentum tensors for electromagnetism and for scalar field theory satisfy the dominant energy condition, and thus also the weak, null, and null dominant conditions. Show that they also satisfy w>1
asked by Soshiant 
math
I asked the following the other day and received the following answer: Posted by Matthew on Sunday, March 17, 2013 at 11:03pm. A quantity of oxygen gas had 16.32 g of the radioactive isotope oxygen19 in it. When measured exactly 10 minutes later, the
asked by Matthew 
math
A publisher prints and sells both hardcover and paperback copies of the same book. Two machines M and N are needed to manufacture these books. To produce one hardcover copy,machine M works 1/6 hours and N works 1/12 hours. For a paperback copy M and N work
asked by Nasi 
biomechanics
A Softball is Thrown at an angle of 45 degrees with the horizontal. It leaves the hand 2m above the ground. Its Initial Velocity is 20 m/s . Neglecting all external resistance, how far would it travel ? The point at which it hits the ground is at the same
asked by yaya 
College Math  Probability
Briefly summarize the experimental design for deciding whether a proposed treatment should go on for further study. Note where independence came into play. If you were more conservative and reject the treatment only if the probability that it is 30%
asked by Ilya 
Chemistry
A 20.0mL 0.3M HCl solution is titrated with 0.4M NaOH. What is the exact pH of the solution before titration? And what is the pH at the equivalence point?(are there any straightforward formulas to use on this kind of problem?)
asked by Sue 
Math
Precalc (1+i)^3 and the cube root of 8i
asked by Crystal 
college physics
If I travel to Mexico and buy a 55g gold braclet for 20 dollars and take the braclet and submerge it in water starting out with 50cc and after it is submerged in the water it is 52.8cc. What is the buoyant force on the braclet? I also need to know if the
asked by patti 
Biology
To take the energy from an exergonic reaction and use it to power an endergonic reaction, a cell can: create the energy for the endergonic reaction to occur. Why is this false? I thought a exergonic reaction create energy for the endergonic reaction to
asked by Anon 
science
in the digestive tract, mouth is bolus to a. stomach is to chyme b. gallbladder is to insulin c. small intestine is to carbohydrate d. esophagus is to peristalsis
asked by mary 
College Mathematics
Counting Principles and Permutation. A social security number consists of 9 digits. How many different social security numbers are possible if repetition of digits is permitted
asked by slomomo 
English
Should I use a comma or colon after as in this sentence? The sentence is not complete that I posted here I have learned many things in this class I will list a few such as different writing styles, write descriptive paragraphs,
asked by Bernice 
Social Studies
Why did the Spanish Colonists leave Florida to go to Cuba?
asked by Didi 
Economics
. How could free Media Player software (either bundled or downloaded with windows) possibly harm consumers?
asked by Anonymous 
English
The team ______ won the game is my favorite. which word correctly completes the sentence above? a. which b.whom c. who d. that
asked by mary 
Physics
Water flows through a pipe of radius 4 cm at a rate of 3.5 m/s. Suppose each water molecule is singly ionized (highly unrealistic). What is the electric current density associated with the flow of these ions? What is the electric current in the pipe?
asked by Lindsey 
Physics
Electric charge flows through a wire, which naturally has a cylindrical cross section. Suppose the charge has a current density given by J = A/r, where A is a constant and r is the distance to the wire's central axis. How much current flows through the
asked by Lindsey 
math 140
The math scores of a math test for five students were posted on the bulletin board. The students' names are Rod, Penny ,Jake, and Fred. Rod and Fred scored the same number of points. Penny did not get the highest score. John's score was 5 points lower than
asked by betsy 
math
Two angles between 0 degrees and 360 degrees have a tangent undefined. What are the angles? Why is the tangent undefined for each of those?
asked by Tristan 
math
A sequence is generated by the recurrence relation Ur+1 = 1/Ur 3. Given that U2 = U1 find the possible of U1
asked by lindsay 
math 140
A football team gained 12 yards on one play, lost 40 yards on another, and gained 34 yards on the last play of the first half. They had already gained 345 already during the half. What was the total yardage gain for the first half?
asked by betsy 
Quantum Physics
Let \psi\rangle=\frac{1i}{2}0\rangle\frac{1+i}{2}1\rangle and \phi\rangle=\frac{2+i}{3}0\rangle\frac{2i}{3}1\rangle. What is \langle \psi\,\,\phi\rangle? Please tell the ans...
asked by RAJNI 
chemistry
Which of the following combinations of atomic orbitals can combine to form sigma bonds? ss ,sp, pp ,hybrid orbital  hybrid orbital ,hybrid orbital  s ,hybrid orbital  p
asked by adex 
Algebra
1. Simplify the expression: (x^3*y^5) (y^7) 2. Write the expression in radical form: (125x)^1/3
asked by Cassidy 
math
The crater is circular and has a radius of about 0.4 mile. About how many square miles does this crater cover. Use 3.14 for pi answer my 1.256square am i correct
asked by Americal 
Math
Is the opposite of 0 still 0 or does 0 have no opposite? Thanks...
asked by Brandi 
adv functions
The strongest recorded earthquake in the world took place in Chile on May 22 1960. It had a magnitude of 9.5 on the Richter scale. The strongest quake actually recorded in Canada was magnitude 8.1 on August 22 1949 and occurred off the Queen Charlotte
asked by Samantha 
chemistry
A student extracts 6.3 g of water when performing the following combustion: C2H8 + 4O2 > 2 CO2 + 4H2O If the theoretical yield is 8.6, what is the percent yield?
asked by Lindt 
Chemistry
Question 2 Marks: 2 How many grams of oxygen gas must react to give 174.3 grams of ZnO according to the balanced equation. 2 Zn(s) + O2(aq) > 2 ZnO(s)
asked by Lindt 
Chemistry
Question 2 Marks: 2 How many grams of oxygen gas must react to give 174.3 grams of ZnO according to the balanced equation. 2 Zn(s) + O2(aq) > 2 ZnO(s)
asked by Lindt 
math
How do I do this? Without a calculator, determine two angles between 0 degrees and 360 degrees that have a cosine of negative square root 3 over 2.
asked by Tristan 
Chemistry
How many grams of zinc must react to give 13.0 grams of ZnO according to the balanced equation. 2 Zn(s) + O2(aq) > 2 ZnO(s)
asked by Lindt 
chemistry
5:8 emperical formula with hydrogen and carbon
asked by naseer 
POLITICAL SCIENCE
describe the European origins of American conservative and liberal ideologies. Then, explain how these two American ideologies have evolved from their European origins, and the key features of each American ideology today. Do “Tea Party” beliefs neatly
asked by kayla 
reading
whatever you can do or dream you can, begin it. Boldness has genius, power and magic in it !" describe in 25 word what the author is saying.
asked by NORMA 
stats.
The mean number of bumped airline passengers per day is 1.35 and the standard deviation is 0.25. For a random selection of a group of 40 days, what is the probability that the mean of bumped passengers for the 40 days will be between 1.25 and 1.50?
asked by Christina 
Propability
Briefly summarize the experimental design for deciding whether a proposed treatment should go on for further study. Note where independence came into play. If you were more conservative and reject the treatment only if the probability that it is 30%
asked by Iryna 
World History (Ms. Sue)
Why did black soldiers often face greater hardships that white soldiers? My answer: They face greater hardships because of the color of their skin. They were often given menial jobs, lower pay, and worked under white officers. They were organized in
asked by Anonymous 
English
Write 10 sentences of subordination. Write 2 sentences for each of the following subordination. For each subornator, one sentence must begin with the subordinator; the other sentence will have the subordination in the middle. Watch punctuation.
asked by Jemma 
English
1. He worked hard to be a best baseball player. 2. He worked hard to be the best baseball player. (which one is right? Do we have to use 'a' or 'the'? Do they have a different meaning?)
asked by rfvv 
math
find the inverse function of h ^1(x)
asked by mace 
Physical Science
The transfer of heat that takes place because of the density difference in fluids is
asked by L 
geometry
Consider the region in Quadrant 1 totally bounded by the 4 lines: x = 3, x = 9, y = 0, and y = mx (where m is positive). Determine the value of c such that the vertical line x = c bisects the area of that totally bounded region. Needless to say, your first
asked by borat 
logirythms
1/2LOG(x1)3LOG(X+4)
asked by Anonymous 
urgent pls education
Assuming in your class,you have noticed that a particular child who is an adolescent has suddenly become withdrawn,discuss how you are going to help such a child???
asked by me 
Trigonometry
using csc = 3.75, solve for sides: a= 3 b= ? c= ? and the remaining five trigonometric functions: sin= (1/3.75) cos= ? tan= ? sec= ? cot= ? *b is not 1; and c is not 3.75
asked by Brandi 
Math
Teo rectangles with dimensions 8cm by 10cm and 9cm by 12cm partly cover each other(see the diagram). the grey area 37cm2. what is the area of the shape marked by dots? How can I upload diagram?
asked by Urmil 
algebra 1
write a quadratic functions for graph that has an axis of symmetry of x= 3/2. summarize your steps.
asked by Anonymous 
reading
thank you ms.sue please help me
asked by NORMA 
math
3.7^2
asked by naomie 
calculus
A publisher prints and sells both hardcover and paperback copies of the same book. Two machines M and N are needed to manufacture these books. To produce one hardcover copy,machine M works 1/6 hours and N works 1/12 hours. For a paperback copy M and N work
asked by Nasi 
math
in triangle ABC ,D and E are the midpoint of line AB andAC resp.angle A=angleB=angleC=angleD=60° DE=5cm find the perimeter of triangleABC.
asked by anupama 
math
A bookshop had 60 boxes of pencils. Each box contained 85 pencils. Half of the pencils were packed into packets of 25 pencils and the rest were packed into packets of 20. How many packets of pencils were there altogether? My answer is 229 am i right? How
asked by lidia 
English
Hello. Thank you for all your answers. I'd like to clarify my previous question. Do you think it's OK to use "before" in the context: "The kids will not calm down before I buy this toy"? (Meaning: the kids will behave normally / will stop being naughty
asked by Ilma 
Physics
What is the gibbs free energy for the reaction a)temperature b)800 degrees celsius c)comment on whether the reactions are spontaneous or not (CHEMICAL REACTION) deltaH = 100kJ delta S= 200 J/K
asked by Sarah 
math
2log_3(9) solve
asked by Hasane 
math
A box is lowered using a rope. If the acceleration of the box, is 2.5 m/s2 (downward) and the tension in the rope is 31 N, what is the mass of the box (in kg)?
asked by Sarah 
Math
How many liters of coke are there in 100 cans if each can contain .385 liters of coke? Round your answer to the nearest liter.
asked by Nomad 
7th grade math
if you borrow $1000 at 9% interest and pay it back over 1 1/2 years, how much do you pay back including interest?
asked by kaylie :) 
math
what does 7 mean?
asked by naomie 
pre algerba
For the past 4 weeks, you have saved $5 per week. You know have $65 in your savings account. Write an equation that represents your balance A after t weeks.
asked by Anonymous 
algebra 1
write a quadratic functions for graph that has an axis of symmetry of x= 3/2. summarize your steps.
asked by Anonymous 
geometry
The angles in triangle ABC satisfy 6sin∠A=3√3sin∠B=2√2sin∠C. If sin2∠A=a/b, where a and b are coprime positive integers, what is the value of a+b?
asked by deepak 
government
How to do informational paragtaph on structure of our local goverment (mississippi)
asked by Anonymous 
Chemistry
A 20.0mL 0.3M HCl solution is titrated with 0.4M NaOH. What is the exact pH of the solution before titration? And what is the pH at the equivalence point?(are there any straightforward formulas to use on this kind of problem?)
asked by Sue 
Math
5 books and 9 magazines cost $150.50 altogether. 9 books and 5 magazines cost $175.70. How much does 1 book and 1 magazine cost?
asked by Nomad 
help?
the last few times I've posted questions no one has answered them...I'm starting to get kind of upset. let's see if this one gets answered: the perimeter of a square is 44. find the length of a diagonal.
asked by 21 Guns 
stats.
The mean number of bumped airline passengers per day is 1.35 and the standard deviation is 0.25. For a random selection of a group of 40 days, what is the probability that the mean of bumped passengers for the 40 days will be between 1.25 and 1.50?
asked by Christina 
math
the increasing global temperature can be modeled by I=0.1e^(0.02t) where I is the increase in global temperature in degrees Celsius since 1990 and t is the number of years since 1990. How much warmer was it in 2000 than in 1950? iIn what year will the temp
asked by chris 
math
1. If 96% of Chinese couples have one child (which is female 50% of the time), and the remaining 4% of Chinese couples engage in sexselective abortion until they have a male child, what is the ratio of females per 100 males among the children (to the
asked by Eddie 
chemistry
It was a very cold day 10 C. Victor went outside to pick up the morning newspaper. He quickly noticed the icicle that formed on the nearby flagpole. Curiosity got the best of him, and he decided to lick the ice on the flagpole. Instantly, Victor's tongue
asked by megan 
Economics
Assume that the average income of an artist is $40,000 per year and that C=0.75Y^P. Further assume that in a good year the artist earns $50,000 and that in a bad year she earns $30,000. 1)Calculate the artist's average propensity to consume on average, in
asked by Mookie 
Physics
A golf ball with a mass of 50.3 g can be blasted from rest to a speed of 72.1 m/s during impact with a club head. Assume that the impact lasts only about 0.910 ms. Calculate the change in momentum of the ball. Calculate the average force applied.
asked by Adam 
math
the letters g and g stand for numbers. if g + 9=h + 9, what is true about g and h?
asked by jeremy 
Math
If someone is renting a truck that has a 40 gallon tank and it gets 10 miles per gallon and they are traveling 252 miles, what will they pay for gas for the trip?
asked by CJ 
Chemistry
What volume of a 6.0 M NaOH solution would you need to prepare 250.0 milliliters of a 3.0 M NaOH solution?
asked by Noemi 
DES
A rock is being pushed by a stream with 30 N of force. The rock has a static friction of 40 N and a sliding friction of 20 N. Does the rock move?
asked by Judie 
Physics
Suppose that each of the three masses in the figure below has a mass of 5.50 kg, a radius of 0.0700 m, and are separated by a distance of 10.5 m. If the balls are released from rest, what speed will they have when they collide at the center of the
asked by Eryca 
Math
Carmen bought 20 apples to make cider. If each apple has a mass of 18 grams, how many milligrams of apples did she buy?
asked by Keelie 
Life orientation
What, according to the basic conditions of emplyment act applies with regard to the contraventions that you've identified?
asked by Ellen hlungwane 
Physics
Jake has a mass of 88.0 kg and is zooming along in a 110.0kg bumper car at 9.4 m/s. He bumped Allen's car, which is sitting at rest. Allen has a mass of 88.0 kg. After the elastic collision, Jake continues ahead with a speed of 3.2 m/s. How fast is
asked by Ian 
vmps
ABCD is a square where M and N are midpoints of AD and CD , respectively. If sinÚMBN=a b , where a and b are coprime positive integers, what is the value of a+b ?
asked by kapil 
math
Prove. 3/(log_2 (a))  2/(log_4 (a)) = 1/(log_(1/2)(a))
asked by Hasane 
pre cal
what is the period of these functions y=1/2 cos 3pi/2 y=2 cos piX/2
asked by Anonymous 
statistics
If you estimate a model y=a + b * x, where the dependent variable Y is measured in billions of dollars and your predictor variable X is measured in percent then "A" represents what?
asked by Tara 
Math Geometry
A cube has 8 vertices. For each pair of distinct vertices, we connect them up with a line segment. There are (8) (2) =28 such line segments. For each of these 28 line segments, we mark the midpoint. How many distinct points have been marked as the
asked by Urgent pls help 
QSO 510
During the dinner hour, the distribution of the interarrival time of customers at a restaurant is estimated to be as shown below. The mode of payment and the service times of the cash and credit card customers are shown in the following tables. Complete
asked by Anonymous 
easy algebra!
C(x)=x^2−20x+111 represents the total cost, in dollars, to produce x gallons of paint. How many gallons of paint should be produced to minimize the total cost?
asked by please..anyone help!! 
geometry
A triangle has side lengths of 6, 8, and 9. What type of triangle is it?
asked by mayra 
number theoRY!!!
How many integers appear in both of the following arithmetic progressions: A1: 2, 9, 16,.....2+(10001)*7 A2: 3, 12, 21,.....3+(10001)*9 Since 2 appears in A1 but not in A2, it does not appear in both of the arithmetic progressions.
asked by please..anyone help!! 
Algebra
A is a 2 by 2 matrix. Given that A=(5 1) (1 5) , what is the value of det(A)? det(A) is determinant of A
asked by Stranger 
Quantum Physics
Consider the following quantum circuit: bit.ly/Zlrijv (a) What quantum state do you have to input in order to get output 00>? (b) What quantum state do you have to input in order to get output 11>? (c) What quantum state do you have to input in order to
asked by helpful 
140
Tom and Andy find a long drainage pipe in a vacant lot. It is big enough so that each boy can just manage to squeeze into it and crawl from one end to the other. If Tom and Andy go into the pipe from opposite ens, is it possible for each boy to crawl the
asked by betsy 
Trignometry
Let m and M be the minimum and maximum values of the domain of f(x)=sin^−1(x2−35), respectively. What is the value of M−m? sin^1 is sin inverse
asked by Stranger 
Limit Math
Evaluate lim x→∞ 2x/(√(x^2+3)4) in words 2x divide by(root(xsq +3) 4)
asked by Stranger 
Finance
A company has total assets of $8,500,000 and its total turnover of 2.35 times. If the return on assets is 9 percent, what is its profit margin? Please help with a formula?
asked by Todd 
stats
Use this zscore formula for this problem: z = (x  mean)/(sd/√n) x = 1.25, 1.50 mean = 1.35 sd = 0.25 n = 40 Calculate two zscores, then use a ztable to determine probability between the two scores. I hope this will help get you started. •stats. 
asked by Christina Ms Sue please help 
Biology
Where is the clitoris situated? What is transpiration? What is the function of Bertholin's Glands? What is the chemical composition of melanin? Where are the testicles situated in the human body?
asked by helpless 
Number theroy
What is the 50th smallest positive integer that can be written as the sum of distinct nonnegative integer powers of 3?
asked by Stranger 
Combinations Maths
25 independent, fair coins are tossed in a row. What is the expected number of consecutive HH pairs? If 6 coin tosses in a row give HHTHHH, the number of consecutive HH pairs is 3.
asked by Stranger 
aig math
A bookshop had 60 boxes of pencils. Each box contained 85 pencils. Half of the pencils were packed into packets of 25 pencils and the rest were packed into packets of 20. How many packets of pencils were there altogether? My answer is 229 am i right? How
asked by May 
Math
Principal 450.00 x interest rate 9.25 x compounded monthly x 4 years
asked by Jeremy 
Statistic
In a jar there 12 white balls 8 red balls 4 greens all with the same size if a person selects one ball at random find the probability it is a red ball.
asked by Morena 
math
2log[base3]9 = ?
asked by Jacob 
Math Ms. Sue Please help!
How do you find an answer to a MAD (mean absolute deviation) chart?
asked by Angelina 
algebra II
i just placed $1500 in an account which earns 8% per year compunded quartely. how much money will be in the account in 20 years? how long will it tke for this account ot have $7000 in it?
asked by Anonymous 
Science
For every cubic meter of 30celsius saturated air that is cooled to 16celsius, how many grams of water vapor will be lost?
asked by Izabel 
math
The total capacity of 2 water bottles, A and B, is 680 ml. The ratio of bottle A's capacity to bottle B's capacity is 4:6. How much larger is bottle B's capacity than bottle A's? My answer is 136, am i right?
asked by lidia 
science
If your weight is 60 N on earths surface how far should you go from the centre of earth so that your weight will be 300 N ?(radius of earth is 4.4*10^6 m)
asked by monika 
Mathematic
Haw many meters are in 2.7 kilometers
asked by Donita 
algebra 2
how do you find all real zeros of the polynomial function. y=4x+15x 8x3
asked by Elaina 
asap math
The measure of a triangle the measure of d is 35° and the measure of cab is 35° what is acd
asked by noahc 
math
A basket contains 15 red numbered balls and 10 white numbered balls. A sample of five balls is selected. How many samples contain three red balls and two white balls? Explain your answer.
asked by alice 
mathsquadrilateral
explain All the parallelograms are rhombus but all rhombus are not a parallelograms
asked by anoynomous 
Algebra
Consider all quadruples of real numbers (x_1,x_2,x_3,x_4), such that x_1\leq x_2 \leq x_3 \leq x_4 and each of the four numbers plus the product of the other three equals 130. If S is the sum of all possible values of x_4, what is S, rounded to the nearest
asked by John 
math
A box consists of white,yellow,green and black balls, in the ratio 2,3,1,6.Total number of balls are 432.How many yellow balls in the box
asked by luthando 
geometry
Carlos want to show a rectangle in his drawing. What dotes he have to do to the drawing below to make the rectangle a closed shape?
asked by Ms.Vargas 
algebra 1
how do you find each unit rate? $57 for 6 hours
asked by Gabi 
frese
Sonya owes mark $ 5.00. Clair owes Mark $ 4.00 Who owes Mark more money?
asked by kaki 
chemistry
define elements, compound and molecules.
asked by Anonymous 
calculus
A publisher prints and sells both hardcover and paperback copies of the same book. Two machines M and N are needed to manufacture these books. To produce one hardcover copy,machine M works 1/6 hours and N works 1/12 hours. For a paperback copy M and N work
asked by Nasi 
Algebra
Find the value of p such that (–6, 3) is the midpoint of the points (9, 1) and (–3, p).
asked by Anonymous 
zoology
Where can I get detail information about "african giant land snail"?
asked by snail 
Math
How do you do a factor tree for the lcm? I don't get it. (Or GCF)
asked by Nomad 
Health
You've received an invoice for $3000.00 with terms of 3/10, 1/20.n/30. How much will you have to pay if you pay the bill in 12 days.
asked by Janette 
math
Why is 1/8 greater than 1/10 but less than 1/3?
asked by mateo 
word puzzle
Foreign object  fellow has one
asked by Di 
Math
What does it mean when it says: Which state has the largest population growth
asked by Celest 
math
Marty ate 1/4 of his pizza and Luis ate 1/3 of his pizz.marty ate more pizza than luis.how is that possible?
asked by mateo 
math
Greater than40 less than70divisible evenly 15 digits add up to6
asked by dmoore 
Chem
264.6 g of water is in a Styrofoam calorimeter of negligible heat capacity. The initial T of the water is 16.9oC. After 270.9 g of an unknown compound at 71.3oC is added, the equilibrium T is 33.2oC. What is the specific heat of the unknown compound in
asked by Anonymous 
math
log_3 (3)^(2x)
asked by Hasane 
Math
18 play baseball, 17 play basketball, 30 play neither or both. I'm trying to make a Venn diagram but don't understand how. Please help!
asked by Sophie 
math
find the coefficient of x^29 in the expansion (1+2x)^12 .(1+x)^18
asked by gandhish 
statistics
a. A single student (n=1) b. For a mean of 50 student (n=50) c. For a mean of 500 students (n=500)
asked by Anonymous 
7th Grade Math
What is arithmetic and geometric sequences?
asked by Jessie 
Algebra 1
Can you please help me with this question? I put parenthesis to make it look less confusing. (10)/(x)(10)/(x3)=(3)
asked by Sam 
chem
suppose that 1.550g of hydrochloric is dissolved into 500.0ml of solution. what is the molar concentration of the acid?
asked by frankie 
physics
The combination of the force of gravity and my hand provide a net force of 40 N on a ball straight up. The ball accelerates at 100 m/s2 while it is in my hand. What is the mass of the ball in kg?
asked by ayan 
SOCIAL STUDIES
an example of a partwhole effect question order effect is in the case which issue?
asked by KEN 
science
Sally sells seashells by the seashore. In the morning, her sack of shells weighed 70 N. She sold seventy shells and in the evening her sack weighed 7 N. What was the average mass in kg of the shells she sold?
asked by ayan 
college physics
If a coyote is standing at the top of a 125 m cliff getting ready to drop a 230 kg boulder on a road runner. What is the potential energy of the boulder just as he is ready to drop it? What is the kinetic energy of the boulder at the instant it hits the
asked by patti 
POLITCAL SCIENCE
are frequently sponsored by news organizations, who use them to help predict outcomes of presidential or other national races.
asked by KEN 
Algebra 1
If the discriminant of 5u2 + bu + 2 = 0 is 41, fi nd all values of b.
asked by Delle 
math
how do you solve: input __ 16 22 50 8 30 output 10 11 14 28 __ 18 (hint: divide and add)
asked by ty 
science
The sun goes around the center of our galaxy once every 250 million years. The sun is also 2.55×1020 m from the center of our galaxy. What is the acceleration of our sun towards the center of the galaxy in m/s2?
asked by ayan 
Math
1. What two numbers can be multiplied to equal 60 and added to be 11? 2. What two numbers can be multiplied to equal 36 and added to be 16? 3. What two numbers can be multiplied to equal 10 and added to equal 7? Thanks
asked by Suzy 
Stats
1. The question asks to choose a data point in our graph (we chose 476,44) of median home prices (x) and percentage of students who scored Advanced on math MCAS (y). We have to find the residual. I'm confused because the equation I was given is e=yyhat I
asked by Jill 
Grammar
By, who were telephones improved? How can I know if this is right with who or should it be whom?
asked by Dakota 
Life orientation
In 1015 lines critically discuss 5 ways in which the human or environmental problem impact on the community
asked by Adelaide 
geometry
find the perimeter of the rectangle if the area is 6m+3m
asked by Catrina 
precalc
sine curve in the form of y = a sin(pi/2x) that passes through the point (2.5,9.546)
asked by spencer 
Math HELP!! :(
a contractor's designing one side of an office building 48 feet in length the windows are each 5 feet long and will be placed Six feet apart and 5 feet from the end of the building wall how many windows can a contractor design
asked by Lizzy 
MATH
The life cycle cost of the BLUEBIRD system is $600 million. The program acquisition cost is $400 million and the development cost is $150 million. There are no facilities costs. What is the procurement cost of the BLUEBIRD system? $200 million $150 million
asked by CHUCK 
political science
what is ''reasonable search''?
asked by alicia 
college algebra
I need help bad. Don't know which formula to use. Please explain step by step. 2x^212x+19. Find the interval where f is increasing and decreasing.
asked by Jackie 
Newsworthy advice
I need to make like a newsworthy story but it has to be graphic.. like a bar graph.. it has to be on something job related on something in my Town of Kalamazoo. Does anyone have any ideas what I could research and do my bargraph on?
asked by Blaze 
Math
a contractor's designing one side of an office building 48 feet in length the windows are each 5 feet long and will be placed Six feet apart and 5 feet from the end of the building wall how many windows can a contractor design
asked by Kevin 
help?
find the altitude of an equilateral triangle if a side is 6 mm long.
asked by 21 Guns 
English
Hello. Will you please tell me if inversion is possible in the following context: "Many people came to Mary's party yesterday. There aslo was (?) Peter, Jack's cousin." Thank you so much for your help!
asked by Ilma 
MEDICAL
inj RL 60 ML/HR AND INJECTION NS 60 ML/HR IV INFUSION TO BE CONNECTED FOR A PATIENT WITH GE . HOW MANY ML PER HOUR YOU WILL ADMINSTER?
asked by Anonymous 
Life orientation
How should discrimination in the work place be dealt with?
asked by Ellen hlungwane 
math
find three sets of values for x and y to make x mi/y min= 4 mi/ 32 a proportion.
asked by jay 
physx!!!!
The combination of the force of gravity and my hand provide a net force of 40 N on a ball straight up. The ball accelerates at 100 m/s^2 while it is in my hand. What is the mass of the ball in kg?
asked by please..anyone help!! 
math
I have an average of 66.67 i need a 70percent to pass the class, what do i need to get on thenext test?
asked by jenn 
math
find three sets of values for x and y to make x mi/y min= 4 mi/ 32 a proportion.
asked by jay 
pre cal
what is the period of these functions y=1/2 cos 3pi/2 y=2 cos piX/2
asked by Anonymous 
math
find three sets of values for x and y to make x mi/y min= 4 mi/ 32 a proportion.
asked by jay 
pre cal
what is the period of these functions y=1/2 cos 3pi/2 y=2 cos piX/2
asked by Anonymous 
physics
Sally sells seashells by the seashore. In the morning, her sack of shells weighed 70 N. She sold seventy shells and in the evening her sack weighed 7 N. What was the average mass in kg of the shells she sold? The acceleration of gravity is −9.8 m/s2.
asked by please..anyone help!! 
math
How much paper is used for a label on a can of frosting. The height of the jar is 5 inches and the radius is 1.5 inches I did SA=2TTrh+2TTr^2 SA=2TT1.5(5)+2TT1.5^2 SA=15TT + 2TT2.25 SA=15TT=4.5TT SA=19.5TT SA=61.261 SA=61.3in^2 61.3in squared of paper was
asked by Scott 
Trigonometry  finding cos 36 given cos 72?
Please help, I know cos 72 degrees = (sqrt 5  1)/4. I need to know what cos 36 degrees is. How to do so?
asked by Knights 
Algebra
The function f(x)=x^4−10x^3+40x^2−80x+64 has four complex roots, one of which is 2−2i. What is the sum of all real and imaginary coefficients of these roots? i here is imaginary unit i.e. i^2 = 1
asked by Stranger 
Trignometry
The angles in triangle ABC satisfy 6sin∠A=3√(3)sin∠B=2√(2)sin∠C. If sin^2∠A=a/b, where a and b are coprime positive integers, what is the value of a+b?
asked by Stranger 
Quantum Physics
a) What is QFT6 of 1/√2(0>+3>)? b) What is QFT6 of 1/√2(1>+4>)? c) What is QFT6 of 1/√3(0>+2>+4>)? d) What is QFT6 of 1/√3(1>+3>+5>)? Answer like: a) 0> = ; 1> = ; 2> = ; 3> = ; 4> = ; 5> = ...
asked by helpless 
math
solve and graph 4x+3y=6
asked by Robbie 
Slope Maths
What is the slope of the line tangent to the quadratic f(x)=4x^2−3x+6 at x=7?
asked by Stranger 
Math
Please help Ms.Sue! a contractor's designing one side of an office building 48 feet in length the windows are each 5 feet long and will be placed Six feet apart and 5 feet from the end of the building wall how many windows can a contractor design
asked by Kim 
Algebra
How many positive integers n≤1000 cannot be written in the form a2−b2−c2 where a,b and c are nonnegative integers subject to a≥b+c?
asked by Stranger 
math
Find the height of a triangle with a base of 24 ML and an area of 66 square. My answers is2.75 am i correct. Thanks
asked by Americal 
writing
My 5th grade year was coming to a close and I, personally, was really looking forward to summer. Two months of sleeping in late and doing whatever. How would I write this...
asked by Suzy 
English
Hello. Please help me with the language problem. Do you think it's possible to use "before" in the following context: "The kids will not calm down before I buy this toy"? Thank you very much for help.
asked by Ilma 
math
. Find the roots of the polynomial equation. x2 + x undefined 72 = 0 (Points : 1) 9 and 8 6 and 6 2 and 16 9 and 8
asked by vilmaa 
Life orientation
describe the course of Ap chdmistry
asked by Jossie 
simple queston
what is 430 in scientific notation?
asked by Anonymous 
Algebra
We define n♡ recursively as follows. 1♡=1; n♡=((n−1)♡)⋅n+1 Find the largest n
asked by Stranger 
Algebra
Let S(N) denote the digit sum of the integer N. Let M denote the maximum value of N/S(N), where N is a 3digit number. How many 3digit numbers N satisfy N/S(N)=M? The digit sum of an integer is the sum of all its digits. For example, the digit sum of
asked by Stranger 
Geometry
BC is a triangle with ∠BAC=60∘,AB=5 and AC=25. D is a point on the internal angle bisector of ∠BAC such that BD=DC. What is AD^2? It is not stated that D lies on BC. This assumption is not necessarily true.
asked by Stranger 
Science
how many kw is an airflow of 30m³/s @130°C
asked by Dave 
Combinations Maths
For how many positive integers n are there exactly ⌊n/2⌋ or ⌈n/2⌉ primes less than or equal to n?
asked by Stranger 
English
Can someone check of this email is grammatically correct? Thank you. How are things? 1) I’ve been on holiday in England and I’ve been attending an English summer course for two weeks. 2) I’ve met an interesting girl from London, Mary, at a party
asked by John 
English
1. He seldom tatoos roses on his arms. 2. He sometimes woos when he meets a pretty lady at a meeting. 3. He seldom tatooes roses on his arms. 4. He sometimes wooes when he meets a pretty lady at a meeting (Which ones are grammatical?) 5. He tatooed a
asked by rfvv 
math
What is the rule for this input/output table Input 2 output 10 Input 6 output 26 Input 8 output 34 Input 10 output 42
asked by tashs 
physics
A 1.03 kg mass is attached to a spring of force constant 10.6 N/cm and placed on a frictionless surface. By how much will the spring stretch if the mass moves along a circular path of radius 0.525 m at a rate of 2.20 revolutions per second?
asked by Jamie 
Life orientation
In 1015 lines critically discuss 5 ways in which the human or environmental problem impacts on the community .provide relevant sources to support your claims.(teenage pregnancy).
asked by Adelaide