Questions Asked on
January 31, 2011

Chemistry
Is thalidomide a cis isomer or a trans isomers? Thanks
asked by Ann 
college algebra
5+2(4y4)=3(2y1)solve
asked by Stephen 
science
When you freeze water, 80 calories of heat are released into the surroundings for every gram of water that freezes. This is known as the "latent heat of fusion" of water, which is 80 cal/g. Heat of fusion is a characteristic property. Theoretically, if you
asked by Elizabeth 
Chemistry
Thanks for your help; I am still have a few problems, could you check my work: Given: Volume of vinegar analyzed5mL Con'c of NaOH0.09890M Avg. Volume of NaOH from titration43.75mL Density CH3COOH: 1.049g/mL Calculations: 1.Moles of NaOH required to
asked by Adam 
RECORD MANGEMENT
I NEED HELP IN CODING AND INDEXING RECORDS.
asked by NA 
college algebra
2/3(5/4+2d) + 1/3=2/5
asked by Stephen 
Chemistry
When solid CO2 (dry ice) is allowed to come to equilibrium in a closed constant volume container at room temperature (300K), 1. the pressure rises until it reaches 1 atm 2. the pressure rises until a liquidgas equilibrium is reached. 3. the pressure does
asked by Douglas 
geometry
A right triangle has a base that is 2 more than twice the height. Find the length of the base for the triangle. If the area is 30 square units.
asked by Raj 
statistics
A regular feature in a newspaper asks readers to respond viaEmail to a survey that requires a yes or no response. In the following day’s newspaper, the percentage of yes response. In the following day’s news paper, the percentage of yes and no
asked by Delisha 
statistics
GMAT and GPA Scores for 12 MBA Students Compute the covariance and the determination and interpret your findings. GMAT 599 689 584 631 594 643 MBA GPA 9.6 8.8 7.4 10.0 7.8 9.2 GMAT 656 594 710 611 593 683 MBA GPA 9.6 8.4 11.2 7.6 8.8 8.0
asked by tanya 
Statistics
Calculate the first, second, and third quartiles of the following samples. 5 8 2 9 5 3 7 4 2 7 4 10 4 3 5 23
asked by James 
Statistic
The professors at Wilfred Laurier University are required to submit their final exams to the registrar’s office 10 days before the end of the semester. The exam coordinator sampled 20 professors and recorded the number of days before the final exam that
asked by naquila 
Statistic
Examine the three samples listed here. Without performing any calculations, indicate which sample has the largest amount of variation and which sample has the smallest of variation. Explain how you produced your answer. a) 17 29 12 16 11 b) 22 18 23 20 17
asked by Denise 
math
A boat starts at point A, moves 3 km due north, then 2 km due east, then 1 km due south, and then 4 km due east to point B. Find the distance AB.
asked by Diana 
Physics
The moon is 384,000 km from the earth and makes 1 revolution in 27.3 days. Find its angular and linear speeds in its orbit.
asked by Art 
stats
a) Explain the difference between sampling error and no sampling error.
asked by Andrea 
physics
A damped massspring system oscillates at 190 Hz. The time constant of the system is 2.0 s. At t = 0, the amplitude of oscillation is 6.5 cm and the energy of the oscillating system is then 65 J. (a) What is the amplitude of oscillation at t = 2.0 s? What
asked by Sierra 
Physics
A train is moving 50km/h east. A person is walking 5 km/h west on the train. How fast is the person on the train going relative to an observer on the earth?
asked by Jenni 
physics
A runner X ran the mile race in 4.25 sec. Another runner Y requires 4.55 sec to run the distance. If they start out together and maintain their normal speeds, how far apart will they be at the finish of the race?
asked by Art 
Physics
A 5.0g silver spoon at 20.0C is placed in a cup of coffee at 90.0C. How much heat does the spoon absorb from the coffee to reach a temperature of 89.0C?
asked by Leah 
Physics
A 5.0g silver spoon at 20.0C is placed in a cup of coffee at 90.0C. How much heat does the spoon absorb from the coffee to reach a temperature of 89.0C?
asked by Leah 
composition
Do I have five different pronouns, adjectives, and adverbs? Curtis, my children’s father and I are in the process of moving to a larger (adj.) apartment. Our personal (adj.) finances have been the topic of conversation as of late. There is concern;
asked by marie 
math
given f(t)=3t5,g(t)=2t^2,h(t)=t^37, compute (g x h)(2)
asked by michale 
math
find the range of possible values of x that satisfy the inequality x5
asked by ira 
Stats
The distribution of lifetimes for a particular brand of lightbulbs has a mean of 110 hours and a standard deviation of 20 hours. Suppose a random sample of 35 lightbulbs is taken for observation. What is the probability that the sample mean lifetime will
asked by Ryan 
Electr. and Magnetism
1) A charge of 80nC is uniformly distributed along the xaxis from x= 0 to x= 2.0m. Determine the magnitude of the electric field at a point on the xaxis with x=8.0m. a] 30 N/C b] 15 N/C c] 48 N/C d] 90 N/C e] 60 N/C 2) 3 point charges, 2 positive and one
asked by Allan 
calculus  applied problems
Max area  A Norman window is constructed by adjoining a semicircle to the top of an ordinary rectangular window. Find the dimensions of a Norman window of maximum area if the total perimeter is 16 feet.       ! ! ^ !! y 
asked by Gabriel 
Trigonometry
Suppose the angle formed by the line 14y = 23x and the positive xaxis is è. Find the tangent of è.
asked by Mike 
Mathematics
If x3 is not equal to 5. What is the value(s) of x, expressed in set notation?
asked by John 
calculus  applied problems
Max area  A Norman window is constructed by adjoining a semicircle to the top of an ordinary rectangular window. Find the dimensions of a Norman window of maximum area if the total perimeter is 16 feet.       ! ! ^ !! y 
asked by Gabriel 
english (debate)
hey im in the negative side.the topic is no homeworks on weekends and im the 3rd speaker it really sucks so can you guys help me
asked by Adrianna 
SPANISH HELP!!
In this writing assessment, you are going to use vocabulary from this section to talk about your house. Answer the questions you see based on what you do with this item or where this item might be in your house. Be sure to write in complete sentences in
asked by NEEDS HELP!! 
physics
A journey consists of two displacements: the first is 500m in a northerly direction and the second is 200m in an easterly direction. In a space below draw, to scale, a vector diagram of these displacements. State the scale of your diagram. On your diagram,
asked by olive 
Statistics for social sciences
For a population with u=50 and o=8, find the zscore for x=54, x=42, x=62 ,x=48 ,x=52 ,x=34
asked by Dana 
science
whats the catchy title for aluminum which can be used for poster making??
asked by Anjana 
finance
a $200 cash advance by using checks linked to to her credit card account.The bank charges a 2 % cash advance fee on the amount borrowed and offers no grace period on cah advances.Sidney paid the balance in full when the bill arrived.What was the cash
asked by tina 
finance
Richard likes the car price of $10,000 but financing through the dealer is no bargain.He has $2,000 for a down payment,so he needs $8,000 for the loan.Richard borrows $8000 for a period of four years at an add on intrest rate of 11 %.What is the total
asked by tina 
finance
A work at home oppurtunity is available in which you will receive 3 % of sales for customers you refer.The franchise fee is $ 840.00.How much will your customers have to buy to cover the cost?
asked by tina 
healthcare
Use 10 medical words discussed in this week’s reading to create a written script (no audio required) of dialogue between two medical professionals. Respond to other students by adding anything they may have missed, correcting any errors, complimenting
asked by dfsfdsfds 
geography
HOW DOES EUROPE'S GEOGRAPHY (LOCATION, RESOURCES, CLIMATE, ETC) EFFECT THE LIFE OF THE EUROPEANS?
asked by Muhsin 
math
Which is true about all points in the second quadrant?
asked by foo 
algebra
A car is travelling at a rate 120 km per hour from town A, then turns right and slows down at 50 km per hour and stops at town B. How far is town B from town A?
asked by jonna 
math
log
asked by Lin 
Chemistry  Oxidation, Reduction Reactions
Fe^3+ + C204^2 (oxalate) > Fe^2+ + CO3 Which is the oxidizing agent and the reducing agent in the chemical equation above?
asked by Jenny 
Chemistry
In blueprinting, there are to reactions that occur. The first one: Fe^3+ + C204^2 (oxalate) > Fe^2+ + CO3 must occur with light. Can the second reaction described by the chemical equation below occur without light? Fe^2+ + Fe (CN)6^2 > Fe3[Fe(CN)6]2
asked by Jenny 
PhysicsHELP
Two resistors, 80.0 and 66.0 , are connected in parallel. The current through the second resistor is 2.40 A. What is the current in the first resistor? What is the total power supplied to the two resistors? I got the answer for the first question but i
asked by Anonymous 
chemistry
I need help with this question. the question. ask to complete the following relationship between units. question a.___g= 1Gg how would answer a question like this.
asked by jessie 
algebra
b=a+x, for a
asked by ML 
algebra
7x26=30 2/3
asked by ML 
Physics
A gun is positioned in a cliff 80m above sea level. It fires a shell, which leaves the muzzle with a velocity of 400 m/s in the horizontal direction. What is the closest distance that a ship can approach the cliff without being hit by the shell?
asked by Amjad 
College Chemistry
The radius of Xe is 1.3*10^8 cm. A 100mL flask is filled with Xe at a pressure of 1.4 atm and the temperature is 290 K. Calculate the fraction of the volume that is occupied by Xe atoms.
asked by Meg 
stats
A random sample of 12 joggers was asked to keep track and report the number of miles they ran last week the responses are: 5.5 7.2 1.6 22.0 8.7 2.8 5.3 3.4 12.5 18.6 8.3 6.6 a) Compare the three statistics that measure central location. b) Briefly describe
asked by qui 
stats
A random sample of 12 joggers was asked to keep track and report the number of miles they ran last week the responses are: 5.5 7.2 1.6 22.0 8.7 2.8 5.3 3.4 12.5 18.6 8.3 6.6 a) Compare the three statistics that measure central location. b) Briefly describe
asked by qui 
stats
A random sample of 12 joggers was asked to keep track and report the number of miles they ran last week the responses are: 5.5 7.2 1.6 22.0 8.7 2.8 5.3 3.4 12.5 18.6 8.3 6.6 a) Compare the three statistics that measure central location. b) Briefly describe
asked by qui 
chemistry
Aerosol cans carry clear warnings against incineration because of the high pressures that can develop upon heating. Suppose a can contains a residual amount of gas at a pressure of 755 mm Hg and a temperature of 25 °C. What would the pressure be if the
asked by Anonymous 
statistic
To learn more about the size of withdrawals at a banking machine, the proprietor took a sample of 75 withdrawals and recorded the amounts. Determine the mean and standard deviation of these data, and describe what these two Statistics tell you about the
asked by qui 
Statistic
Calculations please, Calculate the first, second, and third quartiles of the following samples. 5 8 2 9 5 3 7 4 2 7 4 10 4 3 5 23
asked by Delisha 
Business
What factors account for the resurgence of interest in Operation and Supply Chain Management (OSCM) today?
asked by Jaison 
Statistic
GMAT and GPA Scores for 12 MBA Students Compute the covariance and the determination and interpret your findings. GMAT 599 689 584 631 594 643 MBA GPA 9.6 8.8 7.4 10.0 7.8 9.2 GMAT 656 594 710 611 593 683 MBA GPA 9.6 8.4 11.2 7.6 8.8 8.0 Show me
asked by teresa 
Math
How would you work, and solve this problem? Christa is a waitress and collects her tips at the table. At the end of the shift she has 68 bills, all ones and fives. If the total value of her tips is 172, how many of each bill does she have?
asked by Megan Brown 
algebre
Solve: 5x  23= 26 1/3
asked by ML 
Geography
How does Western Europe's physical geography affect its settlement patterns, economy, and culture? I've looked in the lesson and on google. But all of the websites that look like they might help are blocked. Can someone help, please? I don't need the
asked by Katy 
math
A charity fundraiser consisted of a spaghetti dinner where a total of 387 people were fed. They charged $6.80 for adults and children were half price. If they took in $2444.60, find out how many adults and how many children attended the dinner. I have no
asked by Megan Brown 
science
What is the [Pb+2] in a saturated solution of Pb(OH)2 for each of the following initial pH values? Ksp Pb(OH)2 = 2.8x1016 a. pH = 13.00 b. pH = 9.20
asked by N/A 
chemistry
what is the electronic configuration of Li, O, F, P, and B. Please help!!!!
asked by Twynna 
chemistry
If 12.45gm NaCL is dissolved in 115ml of water, what is the density of NaCL?
asked by Twynna 
Chemistry I am so lost!!! HeLp PLEASE
Water does not easily remove grease from dirty hands because grease is nonpolar and water is polar; therefore they are immiscible. The addition of soap, however, results in the removal of the grease. Examine the following structure of soap and explain why
asked by Kathy R 
chemistry
What is the difference between the representations Mg and Mg 2+? Please help!!!
asked by Twynna 
Chemistry
Is thalidomide a cis isomer or a trans isomers? Thanks
asked by Ann 
Geometry
find the perimeter of a square l=.66yd
asked by sam 
Chem II
For the reaction H2+I2, Kc=55.3 at 700K. In a 2. L flask containing an equilibrium mixture of three gases, there are .056g H2 and 4.36 g I2. What is the mass of the I2 in the flask?
asked by Jeff 
8th grade Algebra
Marianna's rectangular garden is 15 yards long and 10 yards wide. She wants to stretch a wire for hanging lights from one corner of the garden to the opposite. About how long should the wire be?
asked by Elizabeth 
Science
It would be awesome if you can help me with this :) Two station astronauts each need to perform three 8hour EVAs during their 13day mission to repair a damaged solar panel that was impacted by a micrometeoroid on the space station. How much oxygen will
asked by Sean 
math
2+3x+4 input x=3 and output y=6
asked by davis 
Physics
A car drove a total 5km. Accelerated 10seconds then had a constant velocity. Entire trip was 45 seconds. Was was the initial acceleration and final velocity?
asked by Tim 
Physics
A car drove a total 5km. Accelerated 10seconds then had a constant velocity. Entire trip was 45 seconds. Was was the initial acceleration and final velocity?
asked by Tim 
mathpremises
A bit confused with this one: Is the argument correct? if not explain why it's not and change the minor premise to make it correct: All NBA basketball players are over 5ft. tall Russell is 6ft tall Therefore, Russell plays in the NBA Thanks!
asked by donovan 
parts of speech
What parts of speeech in English express huour
asked by Ani 
physics
A projectile is launched at an angle of 600. What other angle would give the same range for the projectile if we neglect air resistance?
asked by Latisha 
Spanish
45. Anita tiene trece años. Es ____ muy bonita. a. un compañero b. una mujer c. una abuela d. una muchacha D? 47. Yo tengo ojos _______ y pelo ________. a. negros/negro b. azul/negro c. pelirrojos/rubio d. verde/castaño Not sure between A, B, and D 48.
asked by mysterychicken 
Chemistry
A student makes a solution by dissolving 55.8 grams of potassium hydroxide in 875.0 grams of water. The resulting solution has a density of 1.07 grams per milliliter. 1. What is the volume of this solution? 2. Calculate the % concentration of this
asked by Paul 
French
Can someone help me? I have a quiz on Direct object pronouns and direct object pronouns replacing direct object nouns. I've tried to figure it out but I just can't. Could someone help explain it to me?
asked by Clorissa 
algebra 11
a normal distribution has a mean of 22 and a standard deviation of 3. Find the probablility that a randomly selected xvalue is in the given interval. Between 19 and 25.
asked by alysha 
Physics
how fast must a roller coaster be going to get around a vertical loop with a radius of 15 m
asked by Larissa 
physics
a wheel revolves about a fixed horizontal axis through O. During a certain interval of time, the angular velocity (which initially is 20 rad per second clockwise) changes uniformly at such a rate that the angular displacement is 60 rad counterclockwise,
asked by stan 
physics help please
Two speakers are driven by a common oscillator at 870 Hz and face each other at a distance of 1.20 m. Locate the points along a line joining the two speakers where relative minima of pressure amplitude would be expected. (Use v = 343 m/s. Choose one
asked by julie 
Algebra 2
what happens when the major and minor axies are exactly the same length?
asked by Michelle 
English
Can you please check if the following sentences are possible, please? Thank you very much. 1) Th scene takes place in a classroom of M'Choakumchild school. 2)It is a whitewashed room, in which the boys and the girls are sitting in two compact bodies
asked by Franco 
sewing
how do you secure the beginning and end of every seam?
asked by mami 
statistics
find the number z such that the proportion of observations are less than z in a standard normal distribution is 0.8
asked by Vicky 
English
I forgot to include the following sentences. I really hope you can have a look at them. 1)He asks his pupils for her name and she replies her name is Sissy Jupe. In his opinion that isn't a name. 2) He objects first to her name, which must really be
asked by Franco 
College Chem PLEASE HELP
A 3.50 liter ballooncontains air at 65% relative humidity at 22 degrees C at 1.0 atm pressure. A small peice of Na metal is introduced to the balloon to remove all of the water vapor. What would the new volume be for the dry air in the balloon?
asked by Ash 
social studies
A study of the causes of the American Revolution of 1776, the French Revolution of 1789, and the Russian Revolution of 1917 best supports the generalization that revolution is most likely to occur when 1. those in power are resistant to change 2. a society
asked by mike 
Confidentiality in Allied Health
I have questions that I need to answer and submit as a research. It has been years since I have written a paper and would like to know if the questions, I am answering need to be included in the paper?
asked by Priss 
College Chem NEED HELP
Calculate the moles of N(2) in a 3.50 litercontainer at 1.15 atm pressure and 28 degrees C. What is the Density of the gas? What is the new pressure if the temperature is raised to 75 degrees C? What is the new density of the gas?
asked by Nicole 
College Chemistry
Calculate the volume of carbon dioxide produced from .025 g of aluminum carbonate and excess HCl at 25 degrees c and 745 toor according to the following reaction: Al(2)(CO(3)(3)) (aq) + HCl (aq)  AlCl(3) (aq) + H(2)O + CO(2) (g) im using the numbers
asked by Heather 
physics
Estimate the number of times you sneezed during the past year. Describe how you arrived at this estimate.
asked by goodness 
math
a group of students go out for lunch. if two have hamburgers and five have hotdogs, the bill will be $8.00. if five have hamburgers and two have hotdogs,the bill will be $9.50. what is the price of a hamburger?
asked by Anonymous 
com/170
• Write several sentences describing a recent interaction with a friend or family member about personal finance or credit cards. This interaction may be imagined or real. • Use at least five different pronouns, adverbs, and adjectives in your
asked by marie 
Finance
Need help with computing taxable income. Can someone explain to me how this is done. Gross salary, 46,660 Interest earnings 225 Dividend Income 80
asked by Marie 
economics
How would you illustrate the impact of each of the following events on a production possibilities curve for factory goods and farm goods? (a) the computer is invented (b) 1 million farm workers remain unemployed for six months (c) a drought
asked by Kevin 
Finance
Compute taxable income. gross salary 46,660 interest earnings 225.00 dividend income 80.00 one personal exemption 3,400 itemized deductions 7,820 adjustments to income 1,150 What amount would be reported as taxable income?
asked by Marie 
fourth grade science
How do changes of state help to separate crude oil into many products?
asked by kishawn 
physics
a compact car has mass 725 kg and is moving at 100 km/h. a) find its momentum b) at what velocity is the momentum of a larger car, mass 2175 kg., equal to that of the smaller car?
asked by skhan 
physics
a .415 kg baseball is pitched at 42 m/s. the batter hits it horizontally to the pitcher at 58 m/s. a) find the change in momentum of the ball. b) if the ball and bat were in contact for 4.6*10^4 s what would be the average force while they touched?
asked by skhan 
Chemistry
Is thalidomide a cis isomer or a trans isomers? Thanks
asked by Ann 
physics
a .50 kg ball traveling at 6.0 m/s collides head on with a 1.0 kg ball moving in the opposite direction at a velocity of 12.0 m/s. The .50 kg ball moves away at 14 m/s after the collision. Find the velocity of the second ball.
asked by willy n 
physics
a 20.0 kg child on an 80 kg boat throws a 5 kg package horizontally with a speed of 10 m/s. Calculate the resulting density of the boat, assuming it was initially set at rest.
asked by willy n 
Research and Statistics
I want to ensure I've done this problem correctly. Thanks! 3. In one elementary school, 200 students are tested on the subject of Math and English. The table below shows the mean and standard deviation for each subject. Mean SD Math 67 9.58 English 78
asked by Lauren 
physics
the tennis ball may leave the racquet on the serve with a speed of 65 m/s. If the ball's mass is 60 g, and it is in contact with the racquet for .030 s, what is the average force on the ball?
asked by Sammy Palmisano 
Spanish
Enter the correct conjugation of the "ar" verb for each sentence: 1. Tú y yo _____ cuadernos nuevos. (necesitar) 2. ¿_____ ustedes los nombres de mis amigos? (olvidar) 3. Nicolás _____ un regalo a su abuela. (presenter) 4. Yo _____ a Dios. (alabar)
asked by Isabella 
physics
a 4 kg model rocket is launched, shooting 50 kg of burned fuel from its exhaust at an average velocity of 625 m/s. What is the velocity of the rocket after the fuel has burned.? Ignore effects of gravity and air resistance.
asked by collin 
physics
a snowmobile has a mass of 2.5*10^2 kg. A constant force acts upon it for 60 seconds. The snowmobile's inital velocity is 6 m/s and its final velocity is 28 m/s. a) find its change in momentum of the ball. b) what is the magnitude of the force action upon
asked by collin 
math
The triangle above has side lengths of 24 mm and 38 mm. Which set of dimensions would produce a similar figure?
asked by Anonymous 
physics
two campers dock a canoe. one camper steps onto the dock. this camper has a mass of 80 kg and moves forward at 4 m/s. with what speed and direction do the canoe and the other move if their combined mass is 110 kg?
asked by sabeen 
physics
two carts are on a frictionless surface. a compressed spring acts upon te carts, and the 1.5 kg cart moves with a velocity 27 cm/s to the left. what is the velocity of the 4.5 kg cart?
asked by sabeen 
physics
Moon is a natural satellite of the Earth, circling it with period (time of one revolution), T = 27,3 days. Radius of Moon’s orbit = 384,000 km. Find the acceleration of the Moon toward the Earth.
asked by Anonymous 
physics
A large merrygoround completes one revolution every 10.5 s. Compute the acceleration of a child seated on it, a distance of 5.20 m from its center. what is the magnitude?
asked by Anonymous 
physics
calculate the force exerted on a rocket given that the propelling gases are expelled at a rate of 1000 kg/s with a speed of 60,000 m/s.
asked by kalli sarik 
physics
a .105 kg hockey puck moving at 48 m/s is caught by a 75 kg goalie at rest. With what speed does the slide on the ice?
asked by dana 
chemistry
1. If a gaseous sample contains 73% N2 by volume, what is the solubility of N2 in water at 25°C and 1.0 atm (kH in H2O at 25°C = 7.0 104 mol/Latm)? 2. Calculate the vapor pressure of a solution of 0.60 mol of cholesterol in 4.5 mol of toluene at 32°C.
asked by Ashley 
physics
a 35 kg bullet strikes a 5 kg wooden block and embeds itself in the block. the block and bullet slide off together at 8.6 m/s. what was the original velocity of the bullet?
asked by maximillion 
physics
a 35 kg bullet moving at 475 m/s. strikes a 2.5 kg wooden block. the bullet passes through the block, leaving at 275 m/s. the block was at rest when it was hit. how fast is it moving when the bullet leaves?
asked by calab mikka 
English
I made a few changes to my previous sentences. That's why I'm posting them back to you. Can you see if everything is OK? 1)It is a whitewashed room, in which the boys and the girls are sitting in two compact bodies separated from one another by a space in
asked by Franco 
English
I forgot to include these other sentences on the same theme. Thank you very much for your help. 1) He is compared to a cannon loaded to the muzzle with facts and prepared to blow them clean out of childhood. (What does it mean? I can't express this
asked by Franco 
Physics
A dockworker applies a constant horizontal force of 79.0 N to a block of ice on a smooth horizontal floor. The frictional force is negligible. The block starts from rest and moves a distance 13.0 m in a time 4.50 s. What is the mass of the block of ice?If
asked by Jake 
Physics
A dockworker applies a constant horizontal force of 79.0 N to a block of ice on a smooth horizontal floor. The frictional force is negligible. The block starts from rest and moves a distance 13.0 m in a time 4.50 s. What is the mass of the block of ice?If
asked by Jake 
Math
how do you simplify cubed root of 625y to the 3th power z to the 7th power
asked by Danielle 
Spanish
62. "¿_____ madar en la piscina o en el mar?" "Prefiero la piscina." a. Quiero b. Quieres c. Queréis d. Queremos B? Not sure.. 63. No _____ en la selva tropical. a. hace calor b. nieva c. hace sol d. nieve B? 64. Necesito ____ para mis vacaciones en la
asked by mysterychicken 
Math
If I have 4 triangles and 6 circles, what is a proportion that I can make? If I have 8 hearts and 10 diamonds, what is a proportion I can make?
asked by Catherine 
chemistry help
the rate constant (k) for a reaction was measured as a function of temperature. A plot of In k versus 1/T (in K ) is linear and has a slope of 1.01 x 10^4 K. Calculate the activation energy for the reaction. i don't know how to solve it???
asked by sue 
science
i need a catch phrase for an element project subject "silver"
asked by amy 
English
As promised, I'm posting you the sentences I'm really doubtful of. I hope you can help me with the rephrasing. 1)He has devoted his entire life to pursuing facts. He is described as carrying a rule, a pair of scales and a multiplication table always in his
asked by Franco 
physics
A roofing tile falls from rest off the roof of a building. An observer from across the street notices that it takes 0.48 s for the tile to pass between two windowsills that are 3.0 m apart. How far is the sill of the upper window from the roof of the
asked by Lauren 
Calculus
Find the exact area below the curve (1x)*x^9 and above the x axis
asked by Amanda 
chemistry
Calculate the mass for: A gold sample that absorbs 225 J to change its temperature form 15 degrees celsius to 47 degrees celsius.
asked by Beth 
algebra
i have 2 solve by elimination an i keep gettin fractions when the answer is (3,3) my teacher gave me the answer an problem but she wants me 2 work it out idk how i keep gettin fractions the problem is: 3x4y=21 8x5y=9 please help
asked by angel 
algebra
you will be making hanging flower baskets. the plants you have picked out are blooming annuals and nonblooming annuals. the blooming annuals cost $3.20 each and the nonblooming annuals cost $1.50 each. you bought a total of 24 plants for $49.60. write a
asked by Bri 
lab
i need 200mL of an 8 molar solution of dilute acid, and my stock cconcentrate is 18 molar, how much of the concentrate, and how much water will i need?
asked by sue 
algebra
A roof rises 1.4 feet vertically and 11.8 feet horizontally. What is the grade of the roof? The grade of the roof is _____% how do I begin to find the answer to this
asked by Joyce 
Accounting
On Hune 1, Coble Company Ltd. borrows $40,000 from first Bank on a 6month, $40,000, 9% note. The note matures on December 1. a) Prepare the entry on June 1. b)Prepare the adjusting entry on June 30. c) Prepare the entry at maturity(december 1), assuming
asked by Sang 
Physics
Two charged particles exert an electrostatic force of 8 N on each other. What will the magnitude of the electrostatic force be if the distance between the two charges is REDUCED to onethird of the original distance? Would you just have to multiply 8 by 9?
asked by Kim 
statistics
For a sample with a mean of M=45, a score of x=59 corresponds to z=2.00.What is the sample standard deviation?
asked by Dana 
math
In a third grade class 2/5 of the students wear glasses. What fraction of the students do not wear glasses? If 16 students wear glasses, how many students are in the class altogether?
asked by Brandyn 
7th grade math
21/8 divided by 5/6=? in simplest form
asked by nick 
math
(1/3 +5/6)divided by 2/5=? in simplest form
asked by nick 
math
A man is 6ft tall is standing 10 feet from the base of a lamp post. The mans shadow has a lenght of 4ft . How tal is he lamp post
asked by jake 
Geometry
A study draws triangle with a perimeter 36cm.the study says that the longest side measures 18cm. how do you know that the student is incorrect?
asked by JUn 
English
1.Jenny (had) never (used) graphics software on the computer. 2.She (was writing) a report about the Ohio River. 3.Jenny (wanted) photographs in her report. 4.She (has been taking) many pictures of the Ohio River. 5.Jenny (has Scanned) the photographs with
asked by Hayden 
Geometry
list the sides in order from shortest to longest in angle PQR,with P=45,Q=10x+30,and R=5x
asked by JUn 
algebra
Solve 7x  20= 24 2/3
asked by ML 
medicine
What is a qualityadjusted life year? How can it be used to compare differences in health status between someone who is healthy and someone who is not? Can it be used to compare health outcomes of someone who is ill with someone who has died? Indicate at
asked by Nicodeme Kombet 
calculus
Suppose that f(x) is bounded: that is, there exists a constant M such that abs(f(x)) is < or equal to M for all x. Use the squeeze theorem to prove that lime x^2f(x)=0 as x approaches 0.
asked by Nayyab 
algebra
explain how to check a solution of an equation.
asked by Cindy 
English
Thank you very much for helping me. I just need you to check these sentences I'm still doubtful of. 1)He is compared to a cannon loaded to the muzzle with facts determined to "bombard" his pupils with them 2)The depiction of the two pupils is achieved
asked by Franco 
Math
I'm just checking myself but here: Lily completed a math project worth 200 points. She earned all but 13 points. How many points did she earn? Isn't it 20013??
asked by \m/(__)\m/ <Weirdo (o_e) 
math
2 people entered 1/3 of what they did in a contest? one won 2 ribbons, one won 3. Why the difference?
asked by diane 
science
a)why do chemist prefer to read/ record the absorbance, rather that the percent transmittance, of light when analyzing a sample having a visible color? b) three parameters affect the absorbance of a sample. Which one is the focus of this experiment?
asked by joe 
Business
What do you consider of when you think of word business? Add all words/phrases you can think of on your sheet of paper. My list: organization computers company Financing Entrepreneur Marketing What else?
asked by Anonymous 
eee
the market mix
asked by mike 
math
how do you add 3 1/2 + 1 3/4
asked by emily 
Criminal Justice
I need to write a paper on the differences of police officers with a GEd and those with further education. Also do either have more civil rights complaints
asked by Stephanie 
Math
(Factoring a sum or difference of cubes) and (solving a polynomial equation). 2x^3+2=0
asked by Mike 
geometry
the height of a flagpole
asked by Anonymous 
Math
Is the time you take to go to the library a function of the distance to the library? I think it's not a function
asked by Troy 
math
a basket of fruit has 3 apples, 2 pears, and 4 bananas. what fraction of the fruit are bananas?
asked by keke 
To ...weirdo
Please find a normal first name without all the strange (and possibly lewd) symbols. I've deleted a couple of your posts for the questionable symbols on them.
asked by Writeacher 
Controls
If you have a tank of water at sea level and the temperature of the water in the tank is 110 degrees F, what is the height of the water if the pressure at the bottom of the tank is 95 inches of mercury(absolute)
asked by Kelsey 
physic
examples of mechanicals waves
asked by peter 
Math
Julia deposits $900 in a savings certificate that pays 6.5 % annually. How much money will Julia have at the end of one year?
asked by Casey 
Chemistry
If 682000 kJ could be transferred with 100% efficiency to water, what volume of water, in liters, could be heated from 8.6 degrees Celsius to 60.0 degrees Celsius as a result?
asked by Jason 
ap calculus
How do you integrate e to the x power? (integral(e^x)dx)
asked by Naz 
math
How do you turn45/72 into a decimal?
asked by Diego 
health
Why would the task of Universal health care coverage raise health care costs?
asked by donna 
Physic
A ball throw at 45 degree angle with an initial speed of 15m/s. the time for the ball to reach its highest point can be found from the data and known constants using which equation? solve for time?
asked by Zach 
science
What would happen if decomposers were no longer in a food chain?
asked by hamza 
science
Soil is usually called an abiotic factor in an ecosystem.Why can soil also be considered a biotic factor?
asked by hamza 
Physics
it says create a graph from our data. rotational speed vs force. i know that independent variable goes on the x axis. but out of rotational speed and force which goes on the x axis and which goes on the y?
asked by JuJu 
Physics
it says create a graph from our data. rotational speed vs force. i know that independent variable goes on the x axis. but out of rotational speed and force which goes on the x axis and which goes on the y?
asked by JuJu 
Math (Algebra 2)
Factoring by Using a Quadratic Form Problem: x^4 + 8x^2  20 What I have so far: (x^2)^2 + 8(x^2)  20 a^2 + 8a  20 For some reason my textbook says to substitute the (x^2) with (a) as you can see in the las step. The next step after that is factoring
asked by Mike 
Physics
create a graph with your data of rotational speed vs radius. independent variable goes on x axis. which is x axis and which is y axis out of radius and rotational speed
asked by Jo 
Algebra
11 < 3x4 < 3
asked by KM 
math
raquel teaches dance classes each evening starting at5:380p.m. she teaches 3 40 minute classes and 2 50 minute classes.she has a 10 minute break between classes.make a table to find the time her last class ends. a.)9:10 b.)9:20 c.)9:30 d.)9:50
asked by julian 
math
Is each ordered pair a slotuion of the given system? write yes or no. 1. y=6x+12 2xy=4 (4,12)______
asked by Selena 
Basic Math
Bill and Sue both work at night. Bill has every sixth night off and Sue has every eighth night off. If they are both off tonight, how many nights will it be before they are both off again?
asked by Mike 
math
calculate the volume to the nearest hundreth of a cylinder with r=6cm and h=12cm
asked by hamels 
Pre Algebra
How do you draw and lable a circle that has an area between 5 and 8 square units?
asked by Kelly 
math
calculate the volume to the nearest hundreyh of a cylinder with r=17cm and h=3cm
asked by hamels 
Physics
A 600kg geosynchronous satellite has an orbital radious of 6.6 Earth radii. What gravitational force does Earth exert on the satellite?
asked by josh 
math
sandra is making 3 gallons of lemonade reception.If each scoop of powdered lemonade mix dissolves in enough water to make 3 quarts of punch,how many scoops of powdered mix will she use? ( hint: 4 quarts = 1 gallon
asked by melissa 
Physics
Mars has a radius of about 0.53 Earth radius and a mass of only 0.11 Earth mass. Estimate the acceleration due to gravity on Mars.
asked by josh 
science
how do u learn the skeleton bones in one night
asked by katie 
science
Can you give me a website on atoms
asked by Stanly 6th grade 
physics
Two speakers are driven by a common oscillator at 870 Hz and face each other at a distance of 1.20 m. Locate the points along a line joining the two speakers where relative minima of pressure amplitude would be expected. (Use v = 343 m/s. Choose one
asked by julie 
physics
The three ropes are tied to a small, very light ring. Two of the ropes are anchored to walls at right angles, and the third rope pulls as shown: F=85 N, q=54°. What is the magnitude of the tension force in the first rope
asked by alyssa 
sci/100
5. Complete the chart. For each provider category briefly describe the education and licensing requirements for practice in the state in which you reside. Then, in the scope of care column, describe the type of care the provider can and cannot legally
asked by bobbi 
Geometry
list the sides in order from shortest to longest in angle ABC,with A=80 ,Q =3x+5 , and C =5x1
asked by JUn 
geometry
what is approximate area of triangle if each side is 36 inches long
asked by becky 
Math
how do find lcm and gcf of 165,275
asked by Ronnette 
science
an experiment for ORGANIC FOOD!!!!!!!!!!!!!!!!!!!!!!!!!!
asked by jugveer's cousin 
math
On the 1st day the movie opened 35 people saw it. On the 2nd day 16 more people came than on the 1st day so that 86 people had seen the movie after the second day. On the 3rd day 67 people came, 16 more than on the 2nd day, If each day 16 more people saw
asked by Rusty 
Algebra
What system of equations do I use to solve the following question? A boat traveled 336 miles downstream and back. THe trip downstream took 12 hours. THe trio back took 13 hours. What is the speed of the boat in still water What is speed of the current?
asked by Tom 
science
FILL IN THE BLANK: THE CAR DRIVER IS ___ COMPARED TO THE CARSEAT AND ___ COMPARED TO THE SIDEWALK.
asked by ZAHRIA 
Math
Is the price of a piece of cloth a function of the length of the cloth? Explain
asked by Help 
math
whats 1\2 1\10
asked by creed 
4TH GRADE SCIENCE
FILL IN THE BLANKS: THE DRIVER IS ? COMPARED TO THE CARSEAT AND ? COMPARED TO THE SIDEWALK.
asked by ZAHRIA 
math
what do you get if you subtract 17/19ths and 2/13ths
asked by Anonymous 
Math
Is the price of a piece of cloth a function of the length of the cloth? Explain
asked by Help 
personal finance
Personal Finance.Why is it important to go through these steps when you are planning on making a large purchase?
asked by Tarshaw 
health
explain the decisionmaking process you use when deciding whether or not to seek medical care for the types of symptoms listed in the chart. Provide an example for each of the five symptom categories; one example of when you would treat the symptom
asked by samuela 
Complex Numbers
How do I go about finding the solutions to the following x^26x+25=0 I know the answer is 34i and 3+4i however, I do not know how to go about finding the these solutions Thanks :)
asked by Allie 
math
joans rectangular garden is 6 meters long and 4 meters wide she plans to double the area of the garden by increasing each side by the same amount find the number of meters by which each dimension must be increased
asked by jack bb 
chemistry/math
Aerosol cans carry clear warnings against incineration because of the high pressures that can develop upon heating. Suppose a can contains a residual amount of gas at a pressure of 755 mm Hg and a temperature of 25 °C. What would the pressure be if the
asked by Kathy R 
physics
A car traveling 59 km/h accelerates at the rate of 8 m/s2. How many seconds are required for the car to reach a speed of 90 km/h? ENTER NUMBERS ONLY (ONE DECIMAL PLACE). NO UNITS
asked by prabh 
Physics please help!!
A car starts from rest and travels for 5 seconds with a uniform acceleration of 2m/sec^2. The driver then applies the breaks causing a deceleration of 1.5m/sec^2. If the breaks are applied for 4 second, how fast is the car going after the breaking period?
asked by Megan 
French
Why is studying French important? Why do we study French in Canada? Studying French is important because it's one of the offical languages of Canada, and so it brings in a lot of good job oppurtunities with it. It is also good for travel, its an advantage
asked by Anonymous 
History
Descirbe "To provide common defense"
asked by Liz 
French
Name some jobs that use French. Where knowing French is important? Some jobs that use French are a teacher, translator/interpreter, Travel/hospitality, Foreign service officer, foreign language instructor, etc. Where knowing french is important? In a
asked by Anonymous 
5th math
what is the least common multiple (LCM)for 15 and 45? There are 16 girls in a class of 36 student. which expression could be used to determine the number of boys (b) in the class? please! help i think this too hard for 5th grade math. this suppose to be
asked by pat 
math
find the volume of the rectangular prism: base area 56 in2, height 6 inches
asked by matthew 
Math
Describe the mistakes. 3 x 8  4 x 5 = 100
asked by Jenna 
physics
a wheel revolves about a fixed horizontal axis through O (the center). During a certain interval of time, the angular velocity (which initially is 20 rad per second clockwise) changes uniformly at such a rate that the angular displacement is 60 rad
asked by stan 
Algebra
three apples and four bananas cost $4.85,three apples and ten bananas cost $8.75, find the cost of an apple
asked by jonathon 
Calculus I
evaluate and justify each step lim((xe^x)/tan x) as x approaches 1. i just need the over all jest of the problem because i don't know what to do to get rid of the 0 in the denominator. Thanks.
asked by Amber 
Physics
the relationship between rotational speed and net force is direct right? and also can u say why it is direct
asked by Ellen 
science
How does light pass through a flat lens?
asked by mm 
Physics
the relationship between linear speed and net force is inverse right? can someone explain why to me please.
asked by Mary Sue 
History
What is general welfare?
asked by Liz 
Engineering Science
A ball is thrown vertically into the air and takes 5s to return to the thrower, from time of projection. What is the time it takes to reach maximum height ?
asked by Christopher 
English
1.She (uses) a viewer program to look at the photographs. 2.Jenny's new software (helps) her modify the photographs. 3.The picture (was) too dark. 4.Jenny (cropped) the photo using the new software. 5.Jenny (will have improved) her photographs. Tell if
asked by Hayden 
Science
A ball is thrown vertically into the air and takes 5s to return to the thrower, from time of projection. What is the time it takes to reach maximum height ?
asked by Christopher 
Chemistry
A student makes a solution by dissolving 55.8 grams of potassium hydroxide in 875.0 grams of water. The resulting solution has a density of 1.07 grams per milliliter. 1. What is the volume of this solution? 2. Calculate the % concentration of this
asked by Paul 
Science
What does a mirror or any shinny object do to light? Is the answer reflect
asked by Anonymous 
College General Chemistry
How would you prepare each of the following solutions? a. 100mL of a 155ppm solution of urea, CH4N2O, in water. b.100mL of an aquaneous solution whose K+ concentration is 0.075M
asked by DONDON 
Business
From minute you woke uo to the present time, list all ways business has touched your life today. Woke up at 6:30 Am from nightsuit purchased at the mall and made in China. Brushed teeth with colgate total manufactured in U.S.A. Prayed from sikh gutka
asked by Anonymous 
FrenchPlease Help
Why is studying French important? Why do we study French in Canada? Studying French is important because it's one of the offical languages of Canada, and so it brings in a lot of good job oppurtunities with it. It is also good for travel, its an advantage
asked by Anonymous 
math
an object that weighs 234lb on jupiter weighs 100lb on earth. what would an object that weighs 400 lb on jupiter weigh on earth?
asked by linda 
Business
These are all factors of production: natural resources, human resource and, capital resources, I have to give five examples of each that go into the production of an automobile. Is there any sites that could help me with this? I really don't get it
asked by Anonymous 
chem
how do I write "Uv light" in lewis structure?
asked by Kathy R 
physics
A cylindrical container 1.7 tall contains mercury to a certain depth, . The rest of the cylinder is filled with water
asked by Anonymous 
3rd grade math hw help!
hello all, my daughter come home with a math homework "Alphabet Polygons" I have no idea how to use the letters in the alphabet to answer the questions. Please HELP! The questions are as follow: 1) You can make polygons of some of the letters by drawing
asked by Kelly 
english
i really need help.please help me out with my writing topic:effects of wars on the youth
asked by michael 
Chemistry
For this picnic, you need to feed at least 300 people. If you want to feed everyone, but still have equal numbers of buns and hot dogs, what is the minimum number of packages of buns and hot dogs you need, respectively? hot dogs= 10, buns=8
asked by Anonymous 
chemistry
A 0.100 mol sample of H2S is placed in a 10.0 L reaction vessel and heated to 1132°C. At equilibrium, 0.0285 mol H2 is present. Calculate the value of Kc for the reaction below at 1132°C. 2 H2S(g) 2 H2(g) + S2(g)
asked by Brittany 
math
The sum of 4 consecutive odd integers is 104. Find the integers with x for unknown numbers.
asked by math 
psychology the mind at work
11. By comparison with the StanfordBinet IQ measure, an advantage of the Wechsler Scales is that they A. have never been associated with the concept of mental age. B. accentuate the importance of reasoning over performance. C. provide an advantage to
asked by mindy 
english
wars an its effect
asked by michael 
eth/125
How do you think slavery influenced the evolution of both Black and White America today?
asked by jenna 
PERSONAL FINANCE / composition
Ok, need another set of eyes... Here is a question I had to answer. Want to get a second opinion if it reads well, and makes sense. Thanks for any comments. What things do you take into consideration when beginning to plan for investments? Why is it
asked by Jim 
calculus
Suppose that f(x) is bounded: that is, there exists a constant M such that abs(f(x)) is < or equal to M for all x. Use the squeeze theorem to prove that lim x^2f(x)=0 as x approaches 0. if g(x) is Mx^2 then what is f(x) and h(x) according to the squeeze
asked by Nayyab 
economics
1. Using optimization theory, analyze the following quotations: a. “The optimal number of traffic deaths in the United States is zero.” b. “Anny pollution is too much pollution.” c. “We cannot pull U.S. troops out of Iraq. We have committed so
asked by dann 
Chemistry
what would be the effect on a chromatographic peak of introducing the sample at too slow a rate
asked by noel 
chemistry
An unknown metal will be used in this experiment. If you do not remove the moisture between trials houw would moisture effect the dendity in a graduated cylinder calculation?
asked by matt 
Physics
A 1.7kg block and a 2.7kg block are attached to opposite ends of a light rope. The rope hangs over a solid, frictionless pulley that is 28cm in diameter and has a mass of 0.74kg .
asked by Sarah 
computers
IF POSSIBLE CAN U GRAPH OR RATHER CALCULATE THE COMMISSION ON SALE . THE COMMISSION IS 6% ON ALL SALES THAT ARE LEAST 20% ABOVE COST
asked by CATHY 
chemistry
How many moles of H2SO4 are required to produce 100kg of CaSO4 from CaCO3
asked by donabel 
physics
A dry water well is 1.5 m in radius and 5.0 m deep. In order from lowest to highest, the fifth resonant frequency (harmonic) of this well is closest to ... Hint: The water well is not just an openclosed tube
asked by urgent help someone plz 
physics
The frequency of the electromagnetic waves in a microwave oven is 2.2 GHz. A large piece of cake is placed inside this microwave oven without the rotating plate, and left to cook for a while. Once the cake is cut, the distance between adjacent uncooked
asked by sara ..help plz someone 
physics
The lowest note of a flute is C4 with a frequency of 262 Hz. If one of the ends of the flute is now closed, the new lowest frequency will be ...
asked by kim..need help 
physics
The frequency of an ambulance's siren is 700 Hz. If a pedestrian on the side of the road hears the siren at 756 Hz, approximately how fast and in what direction is the ambulance moving? a There is not enough information b 25 km/h, away from the
asked by kim..need help 
physics
You blow a whistle of frequency 942 Hz, as you move towards a wall. The frequency of beats you hear from the whistle and the reflected sound is 7 beats/s. In m/s and to two significant figures, how fast are you moving towards the wall?
asked by help need . Mansuri 
physics
While blowing its horn of frequency 466 Hz, a car accelerates at 0.84 m/s2. The car starts from rest by your side and moves away. How many seconds does it take for the frequency you hear to decrease by 5%? Hint: Do not forget to include the time it will
asked by suuppii .. can anyone help 
physics
On a string instrument of the violin family, the effective length of a string is the distance between the bridge and the nut. For a violin, this distance is 31.1 cm, while for a cello it is 38.8 cm. The string of a violin is placed in a cello with the
asked by plzzzz plzzzz someonee 
Calculus
Find the slope m of the tangent line to the graph of the function at the given point and determine an equation of the tangent line. f(x) = 7 x  2 x^2 text( at ) \(1,9\) m = y =
asked by George A.J 
Physics
A 2.0 kg ball and a 3.5 kg ball are connected by a 2.0 m long rigid, massless rod. The rod and balls are rotating clockwise about its center of gravity at 21 rpm . What torque will bring the balls to a halt in 6.0s?
asked by Kevin 
Statistics
Run the simulation using n = 3= and n=10 for a uniform, a bellshaped, and a skewed distribution. Identify the mean of the sampling distribution of sample means for each distribution
asked by Bose