Questions Asked on
March 31, 2011

spanish
Answer the questions negatively, using the imperfect tense. Make sure to include the direct object pronoun when needed. Follow the model. Modelo ¿Juega Daniel al fútbol? No, pero antes lo jugaba. ¿Hablas por teléfono? No hablaba ¿Fue a la playa
asked by Dave 
statistics
of all 3to 5year old children, 56% are enrolled in school. If a sample of 500 such children is randomly selected, find the probability that at least 250 will be enrolled in school.
asked by miriam 
Stats
An instructor gives a test with 20 multiple choice questions. There are 4 responses per questions and only one choice correct. The test also has 30 True/False questions. Determine the probability a student randomly guessing on all questions and correctly
asked by Lacey 
Calculus (pleas help!)
Find constants a and b in the function f(x)=axe^bx such that f(1/8)=1 and the function has a local maximum at x=1/8. a= b= Please help me with this one...
asked by Fernando 
physics
If an 75kg baseball pitcher wearing frictionless roller skates picks up a 0.145kg baseball and pitches it toward the south at 40 m/s, how fast will he begin moving toward the north?
asked by olga 
biology
A man with normal color vision marries a woman who is colorblind. What percentage of their sons would be colorblind, what percentage of their daughters would be colorblind, what percentage of their daughters would be carriers of the colorblind gene?
asked by Andrew 
English
Choose the correct sentence pattern for the sentences below? 1) There is good reason to be thankful. 2) The President sent the ambassador an invitation to the meeting. 3) Snow skiing is a very exciting sport. 4) I hereby declare Tuesday Shakespeare Day.
asked by Ann 
Chemistry
Alcohol levels in blood can be determined by a redox titration with potassium dichromate according to the balanced equation: C2H5OH(aq) +2Cr2O72 (aq) + 16H+(aq)> 2CO2 (g) + 4 Cr3+ (aq) + 11H2O (l) What is the blood alcohol level in mass perecent if
asked by Renee 
Physics 2414
An airplane pilot falls 355 m after jumping from an aircraft without his parachute opening. Fortunately, he lands in a snowbank, creating a crater 1.5 m deep, and survives with only minor injuries. Assuming the pilot's mass is 77 kg and his terminal
asked by Aestas 
physics
As you walked on the moon, the earth’s gravity would still pull on you weakly and you would still have an earth weight. How large would that earth weight be, compared to your earth weight on the earth’s surface? (Note: The earth’s radius is 6378 km
asked by olga 
Calc
A voltage V across a resistance R generates a current I=V/R. If a constant voltage of 16 volts is put across a resistance that is increasing at a rate of 0.2 ohms per second when the resistance is 6 ohms, at what rate is the current changing? (Give units.)
asked by Alisa 
Chemistry
Toxic Carbon monoxide gas is produced when fossil fuels such as gasoline, burn wihtout sufficient oxygen gas. The CO ca eventually be converted to CO2 inthe atmsphere. Automobie cata;yctic converters are desgned to speed up this conversion: How many moles
asked by Keren 
Math
Lisa has 5 more green marbles than blue marbles. She has a total of 40 green and blue marbles. Which system of equations represents this situation if x is the number of green marbles and y is the number of blue marbles?
asked by Kanya 
chemistry
Calculate the percent ionization of a 0.15 formic acid solution in a solution containing 0.11 potassium formate. I have the formic acid Ka=1.8 *10^4 When I solve for "x" I'm getting 1.1.44*10^2 When I plug that into equation (x/0.15x)*100, I'm getting
asked by redgy 
math
If f(x)=x62 and g(x)= sqrt x3 find fog and its domain.
asked by Jeromino 
Chemistry
Iron(III) oxide can be reduced by carbon monoxide. Fe2O3(s) + 3CO(g) 2Fe(s) + 3CO2(g) Use the following thermodynamic data at 298 K to determine the equilibrium constant at this temperature. Substance: Fe2O3(s) CO(g) Fe(s) CO2(g) ΔH° f (kJ/mol): 824.2
asked by Bea 
math
how would you write 7572 1/8 using words would it be seven thousnd five hundred seventy two and one eigth
asked by jill 
physics
A 1520N crate is to be held in place on a ramp that rises at 30.0° above the horizontal. The massless rope attached to the crate makes a 22.0° angle above the surface of the ramp. The coefficients of friction between the crate and the surface of the
asked by Sandhya 
PPPPPhysicssssss
Two lasers are shining on a double slit, with slit separation d. Laser 1 has a wavelength of d/20, whereas laser 2 has a wavelength of d/15. The lasers produce separate interference patterns on a screen a distance 4.90m away from the slits. 1. What is the
asked by BOBert 
Art 17th Century Europe
Contrast the "Elevation of the Cross" by Rubens with Rembrandt's Return of the Prodigal Son. How does each work demonstrate the Baroque style? How does each work mirror the social and political climate of the time? **Hope someone can Help,Please! =)
asked by Mike 
Physics
A square steel plate is 9.00 cm on a side and 0.600 cm thick. Assume that the plate is oriented with the square faces horizontal to the ground. A. Find the shear strain that results if a force of magnitude 1.00×106 N is applied to the top square face of
asked by Melissa 
chemistry
suppose a car operates so inefficently that only 16% of the thermal energy from burning fuel is converted to useful "wheel turning" (mechanical energy) how many kj of useful energy would be stored in a 20 gallon tank of gasoline?(assume that octane burning
asked by jer 
math
Daniel gave 4/5 of his stickers to Javier. Javier’s collection of stickers increased to 64. If Javier had 28 stickers in the beginning, how many stickers did Daniel have in the beinging? can u please show the work and explain how u got it...so i could
asked by Katherine 
physics
1.when white light is shone on red ink dried on a glass plate, the color that is transmitted is red. But the color that is reflected is not red. what is it? 2.a spotlight is coated so that it won't transmit blue from its white hot filament. what color is
asked by charlie 
Chem
Given this reaction: Pb(NO3)2 + 2 KCl > PbCl2 + 2KNO a. How many milliliters of 2.00 M Pb(NO3)2 will react with 50.0 mL of 1.50 M KCl
asked by stephanie 
PHYSICals>>
A heliumneon laser ( λ=633nm) illuminates a single slit and is observed on a screen 1.50m behind the slit. The distance between the first and second minima in the diffraction pattern is 4.75 mm. What is the width (in mm) of the slit?
asked by Roberta 
math
Is there a common ratio for the geometric sequence and what are the missing terms? 16,40,100,?,? IS there a common ratio for the geometric sequence and what are the missing terms? 81,54,?,?,?
asked by SHERYL 
Fizzicks
How do you find the wavelength of a 68,000 Hz ultrasound wave in air?
asked by Jesse 
chem
Give the conjugate base of the following BronstedLowry acids. (Type your answer using the format CO2 for CO2, [H2AsO4] for H2AsO4, and [Ni(CN)4]2 for Ni(CN)42.) 1) H2SO4 I have tried H[SO4] and just HSO4 but they are both wrong:(
asked by Rebekah 
chemistry
0.60 g of hydrogen chloride (HCl) is dissolved in water to make 6.5 L of solution. What is the pH of the resulting hydrochloric acid solution?
asked by Mel 
Simple Physics
Decide whether each of the following statements are TTrue, or FFalse. (If the first is T and the rest are F, enter TFFFF) A) If you decrease the tension in a string, the frequency of its fundamental vibration will get lower B) If you have a standing wave
asked by College student in need of help 
chemistry
The standard enthalpy of formation for sulfur dioxide gas is 296.8 J. Calculate the amount of energy given off in kJ when 30.0 g of SO2 is fromed from its elements
asked by adam 
physics
In the Atwood's machine of Figure 823, the two masses shown are initially at rest at the same height. After they are released, the large mass, m2, falls through a height h and hits the floor, and the small mass, m1, rises through a height h. The mass m2
asked by jennifer 
Physics
A ball of mass 5.0 kg moving with speed of 2.0 m/s in the +xdirection hits a wall and bounces back with the same speed in the xdirection. What is the change of momentum of the ball?
asked by Natalia 
English 102
I am not asking anyone to do my homework, i am just asking for some gudies. I need to do a fullsentence outline on samesex marriage. i have some ideas i would just like some adivce. I. Main point 1 in a complete sentence. What Christians are saying about
asked by Jennifer 
PHYSICS PLEASE HELP
This question has two parts: First: A typical steel Bstring in a guitar resonates at its fundamental frequency at 240 Hertz. The length of the string is 0.640 m. What is the wave velocity along the string?. Second: Find the wavelength of the third
asked by College student in need of help 
physics
Given the information which statements are true or false? We know that when we pluck a string on an instrument the resulting sound wave travels through the air at a speed of (about) 344 m/s. But the wave moving on the STRING itself doesn't have to travel
asked by Student in Need 
chemistry
You have prepared a saturated solution of at 20 using 31.0 of water. How much more solute can be dissolved if the temperature is increased to 30?
asked by Anonymous 
chemestry
A 30,000 kg locomotive is moving at a velocity of 10 m/s east. What is the locomotive's momentum?
asked by uhuhuigh 
Chemistry.
Which of the following changes will increase the amount of solid solute able to be dissolved in a liter of liquid water? decreasing pressure increasing temperature decreasing temperature increasing surface area
asked by Valentina 
Math
Which measure of central tendency best describes these data? 100, 5, 90, 95, 100 A. the mode only B. the mean and the median C. the mean only D. the median only I've never really understood central tendency
asked by Sammy 
science
How much heat is required to warm 225g of ice from 46.8 degree celcius to 0.0 degree celcius, melt the ice, warm the water from 0.0 degree celcius to 100.0 degree celcius, boil water, and heat the steam to 173.0 degree celcius.
asked by kayt 
physics
Find the magnitude and direction of a)the resultant b)the equilibrant of two forces 10N acting in the direction N030'E and 15N acting in the eastern direction if boths forces act at a point. Please solve nd give the details especially the B parts of the
asked by pete onoriode 
Geography
1. All of the following are results of the Meiji reforms except the a. creation of the Diet b. institution of a Japanese caste system. c. establishment of a new educational system. d. construction of the railroads. is it a?
asked by Cheryl 
physics
if the fulcrum of a .15 kg meter stick was placed at 25 cm and a 300 g mass at the 5 cm mark, would it be possible to balance the meter stick with a 100 g mass on the long side of the meter stick? what would the position of the mass have to be to balance
asked by HELP!!!! 
Physics please help
A man standing on a frictionless ice throws a boomerang which returns to him. Asuuming that the boomerang can only move in a a circular path, choose the correct statement: A)Since the momentum of the manboomerang system is conserved, the man will ocme to
asked by Kurt 
Physics
Light of wavelength 600 nm illuminates a diffraction grating. The secondorder maximum is at angle 39.1°. How many lines per millimeter does this grating have?
asked by Roby 
physics
If you and a friend 10 m away each have masses of 84 kg, how much gravitational force are you exerting on your friend?
asked by olga 
Precal
The equation is y=80.4 11 ln x, 100
asked by Ashlie 
Math
The Great Pyramid of Giza has a square base with side length of 755 ft. and an original height of 481 ft. Determine its original surface area to the nearest square foot.
asked by Shawn 
math
gayle has a credit card with $500 balance on it and a 19% interest rate. If she wants to pay off her card in two years, what will her monthly payments be?
asked by laken 
Physics
Let's consider some of the things that affect the velocity of a standing wave on a string: decide whether each of the following statements are TTrue, or FFalse. (If the first is T and the rest are F, enter TFFFF) A) The velocity of the wave traveling on
asked by College student in need of help 
math
what household items come in fourths or halves?
asked by jacob 
Calc
For positive constants k and g, the velocity, v, of a particle of mass m at time t is given by v= mg/k(1−e^(−kt/m)) At what rate is the velocity is changing at time 0? At t=1? What do your answers tell you about the motion?
asked by Alisa 
physics
A 86kg fisherman jumps from a dock into a 121kg rowboat at rest on the West side of the dock. If the velocity of the fisherman is 3.4m/s to the West as he leaves the dock, what is the final velocity of the fisherman and the rowboat? Answer in units of m/s
asked by go 
chemistry
Find Molecular and net ionic equation for Al(NO3)3 + Na2CO3
asked by THE REAL DEAL 
math
F=Gm1m2/r^2, for G
asked by Nancy 
geometry
What solid has 2 triangular faces and 3 rectangular faces?
asked by liz 
chemistry
hello i'm doing a redox stoichiometry lab having to do with titration so we are given these two equations: 6 H + 3H2O2 + 2MnO4 > 4O2 + 2Mn + 6 H2O 6H + 5H2O2 + 2MnO4 > 5O2 + 2Mn + 8 H2O it asks which reactant is the source of the O2 product in this
asked by jewels 
Physics
SEQUENCE of questions: 1)A typical steel Bstring in a guitar resonates at its fundamental frequency at 240 Hertz. The length of the string is 0.620 m. What is the wave velocity along the string? Find your answer in m/s MY ANSWER 148.8m/s? 2)The tension in
asked by Jamie 
Afrikaans
Goeie More Skryf Die volgende sinne in die LYDENDE VORM. 1.Babsy het gister die bal baie hard geskop. 2.Lalla moet daagliks die winkel blitsvin!@#$%^&aan
asked by Sivashen 
science
How many grams of oxalic acid dihydrate (H2C2O4) are needed to react with 38.56 ml of 0.2500 sodium hydorxide
asked by Stephanie 
business income tax
Please can somebody help me with this before 10am on 04/02/11. 1. On January 1, Gull Corporation (a calendar year taxpayer) has accumulated E & P of $200,000. During the year, Gull incurs a net loss of $280,000 from operations that accrues ratably. On June
asked by zoran 
math
what is the equation for selecting a winning numbers for a lotto wheel if 90 numbers are put in the wheel and five had been selected first 136602448 what is the equation for selecting five another winning numbers
asked by adjei 
physics
object A exerts a gravitational force of magnitude 8.2 x 10^10 N on object B. determine the magnitude of the gravitational force if, simultaneously, the separation distance is tripled, mA increased by 4 times and m8 is halved. explain your reasons and
asked by OMar 
chemistry
a 20.0L vessel at 700 K initially contains HI (g) at a pressure of 6.20 atm;at equilibrium, it is found that the partial pressure of H2 (g) is .600 atm. What is the partial pressure of HI (g) at equilibrium?
asked by robert 
PHYSICS
Decide whether each of the following statements are TTrue, or FFalse. A) If you increase the tension in a string, the frequency of its fundamental vibration will get lower B) If the fundamental vibration of a string has wavelength lambda, then the next
asked by About to give up! 
physics
A 86kg fisherman jumps from a dock into a 121kg rowboat at rest on the West side of the dock. If the velocity of the fisherman is 3.4m/s to the West as he leaves the dock, what is the final velocity of the fisherman and the rowboat? Answer in units of m/s
asked by go 
math
solve: I=Prt, for P
asked by CJ 
math
In December the average total rainfall in all of the deserts together is 0.89mm.Explain how to use the figures from the table to write a comparison of the total desert rainfall in August and December.
asked by tiffany 
science
a burette had 10ml of water in it before it was filled with NaOH. would this increase, decrease, or not affect the molarity of NaOH in the burette? Explain!
asked by maria 
chemistry
Find Molecular and net ionic equation for Al(NO3)3 + Na2CO3
asked by THE REAL DEAL 
math probability
there are 3 nickles 2 dimes and 5 quarters in a purse. the three coins are selected in succession at random. find the probability of selecting2 nickles , then a quarter.
asked by carly 
Chemistry HELP!!
A mixture of 0.154 moles of C is reacted with 0.117 moles of O2 in a sealed, 10.0 L vessel at 500 K, producing a mixure of CO and CO2. The total pressure is 0.640 atm. What is the partial pressure of CO?
asked by Toni Jones 
math
the ratio of the corresponding sides of two similar triangles is 7:5 what is the ratio of their perimeters
asked by deborah 
math
If 5/6 of the 30 members are present, how many members are absent? would that be 5 members absent? Thank you Ms Sue for your help
asked by jill 
physics
if the fulcrum of a .15 kg meter stick was placed at 25 cm and a 300 g mass at the 5 cm mark, would it be possible to balance the meter stick with a 100 g mass on the long side of the meter stick? what would the position of the mass have to be to balance
asked by Torques, equilibrium and center of mass 
math
Chords AC and BD intersect at the center of circle ABCD. If the length of CP = 8, which is the length of PB?
asked by mark 
Modern History
I've got to compose a thesis for my modern history paper on Hitler or Stalin. We are looking at studies of power, in particular the abuse thereof. I'm normally an A grade student but both thesis' I've proposed were either just a statement or too broad. I
asked by Hayley 
Statistics
The closing price of Schnur Sporting Goods, Inc., common stock is uniformly distributed between $16 and 29 per share.Exercises What is the probability that the stock price will be: More than $23? Less than or equal to $19?
asked by Jerry 
science
what is the dencity of an object that has a mass of 92 grams and a volume of 40 milliliters? ~thx!
asked by maddie 
Science
A 1.0 m length of string has fixed attachments at both ends. The wave speed on the string is 400 m/s and the frequency is 800 Hz. What is the fundamental frequency of the string?
asked by Rico 
MATH
A light year is the distance that a light travels through a vacuum (space without matter) in one year. A light year is about 9.46 x 10^12km. The distance to the spiral galaxy NGC 4603 is about 1.08 x 10^8 light years. What is the distance in km?
asked by Maria 
physics
Two rivers, A and B, flow together to form a larger river C. If the flux (volume rate of flow) of river A is 300 gallons per second and the flux of river B is 200 gallons per second, what is the flux of river C? 1)200g/s 2)250g/s 3)300g/s 4)500g/s
asked by Brandon 
physics
A driver of a car traveling at 14.2 m/s applies the brakes, causing a uniform deceleration of 2.0 m/s 2 . How long does it take the car to accelerate to a ﬁnal speed of 10.7 m/s? Answer in units of s. 002 (part 2 of 2) 10.0 points b) How far has the car
asked by Anonymous 
chem
How to determine maximum amplitude of oscillation of a system, using the question below? A large block P executes horizontal simple harmonic motion as it slides across a frictionless surface with a frequency f=1.50Hz. Block B rest on it and the coefficient
asked by memey 
physics
1.calculate th speed of waves in water that are 0.4m apart and have a frequency of 2hz? 2. sound waves travel at approximately 340m/s what is the wavelength of a sound with a frequency of 20Hz? what is the wavelength of a sound with a frequency of 20 kHz?
asked by charlie 
Algebra(urgent)
a boat moves through still wather at x kilometers(km) per hour. it travels 24km up stream against a current of 2km per hour and then returns with the current. The rate upstream is x2 because the boat moves against the current and the rate downstream is
asked by Kelvin 
computer science
Which term best describes a collection of student information and grades that might be similarly displayed in both Excel and Access? A) Database B) Table C) Field D) Record
asked by Anonymous 
chemistry
Lead ii nitrate was added to a small test tube as well as Sodium hydroxide. What is the equilibrium equation for the reaction of lead ii ions and hydroxide ions?
asked by Keli 
math
how dO find the missing terms for the geometric sequence o,?, ?, ?...... 16, 40, 100......
asked by SHERYL 
Biology
Which substance does not leave the nephrons by active transport? a)Potassium ions b)Water c)Calcium ions d)Phosphate ions e)glucose I think its either water or glucose... Another question.. Two strategies negative feedback and antagonistic hormones have
asked by Joey 
Physics you probably understand
A typical steel Bstring in a guitar resonates at its fundamental frequency at 240 Hertz. The length of the string is 0.640 m. What is the wave velocity along the string?
asked by College student in need of help 
chemistry
write the reaction for Zn + HCl
asked by Juanita 
mastering physics
Find an expression for , the tension in cable 1, that does not depend on . Express your answer in terms of some or all of the variables , , and , as well as the magnitude of the acceleration due to gravity .
asked by Anonymous 
MATH
HOW DO I FIND THE LEAST COMMON DENOMINATOR
asked by spencer 
chemistry
what about HCN, HCLO4, H2SO4 , are they strong acids or weak
asked by auro 
MATH
PLEASE EXPLAIN HOW TO FIND THE COMMON RATIO FOR THE GEOMETRIC SEQUENCE 16, 40. 100,____, ____ AND 81,54, ______,______,______
asked by SHERYL 
Physical Geography
Using information from 2 locations, Berkeley, California and Terre Haute, Indiana, a comparison of the water balance will be completed between the 2 sites. The data includes precipitation, potential and actual evapotranspiration, soil water storage,
asked by Chaseone 
Chemistry
If the specific rotation of Compound X is () 123.8º, what would be the observed rotation of its enantiomer, Compound Y, assuming the concentration and cell path length is the same? b. If a racemic mixture of Compound X and Compound Y were analyzed, what
asked by Nicole 
Physics 2414
A 1000 kg car can accelerate from rest to v = 85 km/hr in a time t = 7.4s. If, instead the power of the car is smaller by a factor of .4 and the car accelerates for the same amount of time, by what factor will the maximum speed decrease?
asked by Aestas 
Math>>>>if anyone could check my answer
this problem is difficutl for me i have an answer but im unsure so if someone could check my answer please. heres my problem: A light year is the distance that a light travels through a vacuum (space without matter) in one year. A light year is about 9.46
asked by Angel 
english
THESIS Facebook can have negative approaches such as facebook addicton, unsecure privacy, less social interaction, and causes problems with relationships,therefore i believe facebook should be limited by parents and by the users. is this a good enough
asked by lidia 
economics
Suppose a monopolist faces production function Q = 3KL and demand function Q = 12 − P. Derive the input demand (as a function of Q, r and w) for capital and labor.
asked by Yash 
science
what two scientists established th structure of DNA?
asked by Bella 
math
1. Select any two integers between 12 and +12 which will become solutions to a system of two equations. 2. Write two equations that have your two integers as solutions. Show how you built the equations using your integers. Your solution and equations
asked by John 
math
f(x)= 3x5 and g(x)= 2x^2 evaluate: 1.(fog)(x) 2.(gog)(2)
asked by Jeromino 
english
What die Franklin D. Roosevelt do to help the depression in the early 1900's?
asked by wendy 
Calculus
Find and classify the critical points off(x)=8x^7(3−x)^6 as local maxima and minima. (I really don't know what to after 56x^6(3x)^6 + 8x^7 * 6(3x)^5(1)
asked by Karku 
chemistry
In a certain compound of copper and oxygen, a sample weighing 0.5424 g contains 0.4831 g Cu. How many moles of copper are in the sample and the mass of oxygen in the sample?
asked by cook 
Physics...help please!
An artillery shells is moving on a parabolic trayectory, when it explodes in midair. The shell chatters into a very large number of fragments. Which of the following statements is true? (Select all that apply.) A) A center of mass of the system of
asked by Celine 
math
What is the largest possible domain for the function f(x) = ~x + ~(4  x^2) ? a.{x: O:::;x:::;2,x ER} b.{x: 2 :::;x :::;2, x E R} c.{x: 0 s X :s 4, X E:R} d.{x: x 2': 2, x ER}
asked by michele 
Physics
We're in class with a SIL decibel meter up front, and everyone is screaming at the top of their lungs, hooting and shouting and pounding on their desks, shooting off firecrackers, its Phys 1240 gone wild...and the meter is reading a reasonably steady sound
asked by Quick question 
Calculus (pleas help!)
Consider the function f(x)=12x^5+60x^4−100x^3+4. For this function there are four important intervals: (−INF,A], [A,B] ,[B,C] , and [C,INF) where A, B, and C are the critical numbers. Find A, B, and C. At each critical number A, B, and C does f(x) have
asked by Karku 
Chemistry
Given that 14.2 liters of chlorine gas react according to the following equation... Cl2 + 3 F2> 2ClF3 Question: If all gases were under the same conditions of temperature and pressure,what volume of chlorine triflouride would be produced? (using mole
asked by Sam 
Algebra
a boat moves through still wather at x kilometers(km) per hour. it travels 24km up stream against a current of 2km per hour and then returns with the current. The rate upstream is x2 because the boat moves against the current and the rate downstream is
asked by Kelvin 
Maths
Hi! I'm working on a math assignment... My teacher wants me to find rainfall data and then work out the volume of water that would fall on a roof. I've already worked out the roof area but the roof is made up of multiple squares. The teacher would like me
asked by Sasha 
Math
the height of a new home is going to be 74 feet. if the height of the home in a scale drawing is 9.25 inches, what is the scale used?
asked by Megan 
Maths
Hi! I need help. I have worked out total rainfall, I have the monthly average (given by beauro) and I worked out the mean rainfall each month. My teacher says I need to work out the amount of rainfall in mcubed that would fall on the roof each month. How
asked by JJ 
chemistry
what mass of silver was heated if its temperature rises from 21.0 C to 51.0 C as a result of absorbing 3.50 kJ of energy
asked by Anonymous 
Chemistry
A quantity of gas under a pressure of 302 kPa has a volume of 600. cm3. The pressure is increased to 545 kPa, while the temperature is kept constant. What is the new volume?
asked by Aubrey 
NA1
I need a thesis statement for my paper on the disease ALS?
asked by Marvella 
math
A circular pie with a diameter of 9.8 inches is cut into 7 equal slices. What is the approximate area of one slice?
asked by j 
algebra
Can anyone help me to understand algebra? Right now I am working on Systems of Linear Equations in Two Variables and I do not understand any of it. Thank you.
asked by patiance 
math
if Y = X2(xsquared) 6x  8 find the value(s) of x when y =1. yes there was a typo its x squared i don't know how to rise the 2
asked by michele 
MATH
IF the first term in a geometric sequence is 0 and no other terms are given what is pattern?
asked by SHERYL 
Math
Find two ratios that are equivalent to each given ratio. 1) 7/14 2) 9/12 3) 21/35
asked by Amy 
business
The vice president of human resources at Ato Enterprises feels strongly that workers need to realize the benefits of their hard work. This reveals the firm's responsibility
asked by Anonymous 
physics
I have to figure out if the following are true or false in order to solve an equation. But I am getting at least two wrong so I can't get the next one right. A)If you increase the tension in a string, the frequency of its fundamental vibration will get
asked by Student in Need 
physics
A typical steel Bstring in a guitar resonates at its fundamental frequency at 240 Hertz. The length of the string is 0.620 m. What is the wave velocity along the string? Find your answer in m/s, but do not enter units. IS THE ANSWER 148.8m/s?
asked by Jamie 
Chemistry
How much heat is required to raise 75 grams of 0 degree Celsius ice to 135 degree Celsius steam?
asked by Lizabeth 
Algrebra
Please advise if I did this problem correctly Solve the proportion 32/X = 2/3. 32/X = 2/3 32 divided by 2 = 16 11 x 3 = 33 16/33 16 x 2 = 32 33 x 1 = 33
asked by Jeannie 
Calculus (pleas help)
Find the inflection points of f(x)=6x^4+34x^3−18x^2+10. (Give your answers as a comma separated list, e.g., 3,2.)
asked by Cady 
history
where is the mississippi?
asked by cara 
algebra 2
During the first part of a trip a canoeist travels 93 miles at a certain speed. The conoiest travels 5 miles on the second trip at 5mph slower. The total time for the trip is 2 hrs. What was the speed on each part of the trip? Thank you for all your help.
asked by esther 
English
Can someone check my sentences, please? It's really urgent. I don't know how to rephrase "bug", "she did te ultimate". Thank you. 1) My mum started bugging with clothes she chose. I didn't say anything at first, I just turned up my nose. 2)I need to
asked by Mike 
AC 323CT
. Harold Stevenson purchased substantially all of the business assets of the Troy Creamery on January 17. As part of the purchase price he paid $200,000 for the patent on an ice cream making process. Harold also pays $20,000 for the business's goodwill and
asked by aaron 
com 155
Use at least five adverbs and five adjectives to write a brief review of a movie, sporting event, musical performance, or television show. · Bold each adverb. · Underline each adjective. · Compare the event to one or more similar events. When comparing,
asked by Debbie 
Physics that you probably know and i don't
The tension in the above string is 89.6 N. Calculate the mass of a 4 m long piece of the steel string.
asked by College student in need of help 
math
How many threesymbol codes can be formed from the letters I,S,P, and Y without repetition?
asked by Anonymous 
Chemistry
A sample of a gas weighs 4.526g and has a volume of 890.0 mL at 645.0 torr and 29(degrees C). What is its molar mass?
asked by Toni Jones 
chemistry
suppose you know the values for r, theta, and phi which specify a point. what are the corresponding values of x,y,z? Write an expression for x as a function or r, theta,and phi; then do the same for x,y,z. Using the answer to the previous question write
asked by Olga 
Geometry
To solve for the following proportion, you could use equivalent ratios, divide out the known ratio, or use cross products. Choose one of these methods to solve for t. Show your work and explain why you chose that method.
asked by Anonymous 
science
I have two questions I need help with. First is a two word answer for _____ can occur when heat from a volcano melts snow on a mountain. Total of 12 letters, 2nd is a, 4th s, 12th t. Second questionwhat is a 7 letter word for a mixture of loose sand,
asked by ccrs 
Finance
At the beginning of the year Washington had a total assets of $300,000 and a total liabilitiesof $120,000. If total assets increased $150,000 during the year and total liabilities decreased $25,000. What is the amount of stockholders equity at the end of
asked by ronnell 
math
Volume of Aluminum Foil. One cubic centimeter of aluminum weighs 2.7 grams. If a piece of aluminum foil weighs 5.4 grams, find the volume of the aluminum foil.
asked by tracey 
Algebra 2
I apologize for that. I didn't realize I didn't write the whole problem. Thank you for pointing that out to me. Aki's Bicycle Designs has determined that when x hundred bicycles are built, the average cost per bicycle is given by c(x) =0.1x^2 0.5x+ 9.295.
asked by Esther 
chemistry
To make a pocket warmer from sodium acetate and vinyl, how do you estimate how many grams to use? to work out the 'q' is it the heat capacity of the water it is dissolved in that you use? What temperature do you want it to get to and how do you factor in
asked by Jannis 
Credit Cards  Situations
Here, Im given some lists of situations, and for each situation, Ive got to figure out if using credit would be a wise or unwise decision. A. Aron sees a latest computer system which he really wants. Even though the price seems to be high, he’s too
asked by Yipee 
physics
I'm trying to find the pressure exerted by an object that has a force of 180 newtons on an area of 10 square centimeters
asked by Andrew 
engineering
To make a pocket warmer from sodium acetate and vinyl, how do you estimate how many grams to use? to work out the 'q' is it the heat capacity of the water it is dissolved in that you use? What temperature do you want it to get to and how do you factor in
asked by Jannis 
Math
The denominator of a fraction is 4 more than the numerator. If both the denominator and the numerator are increased by 1, the resulting fraction equals ½. What is the original fraction?
asked by Henry 
algebra 2
Aki's Bicycle Designs has determined that when x hundred bicycles are built, the average cost per bicycle is given by c(x) =0.1x^2 0.5x+ 9.295 Thank you for your help
asked by Esther 
Math
What is the volume of a rectangular solid that measures 16 ft by 14 ft by 20 ft?
asked by Tyler 
algebra
5/8x + 1/16x = 7/16 + x The solution is x=
asked by deb 
eng. macbeth
this is a question on macbeth act II, i truly NEED anyone's help with this since it's due tom. Q.what would you say is the mood of Act II? What images and actions help to create this mood?why might images of blood and water appear in scene 2, and what do
asked by Jason 
algebra
Explain the domain and range of a function. Under what circumstances would the domain be something other than all real numbers? Provide an example.
asked by Anonymous 
RPCC
a sample gas has a volume of 200 cubic cm at 25 C and 700 mmHG. If the pressure is reduced to 280 mmHg, what volume would the gas occupy at the same temperature?
asked by Bird 
geo 2
if ABCD is a square and DB is equal to 12 cm, then AC is equal to 6 cm.
asked by jeff 
English
In Literature, what were the goals in the Harlem Renaissance? I could only think of one. To show the Negro as a capable individuals
asked by Aisha 
science
What is an example of quasiscientific jargon?
asked by ragina 
chemistry
If 25.00 ml of water is removed from two flasks, one with less water initially and each at 25 degrees, what will happen to the temp in each flask?
asked by Chem dude 
Religion
Many English translations of Genesis state that God "created" or "made" humankind. Explain several shades of Hebrew meaning not communicated in English.
asked by Tyrone 
Chemistry
A quantity of gas under a pressure of 302 kPa has a volume of 600. cm3. The pressure is increased to 545 kPa, while the temperature is kept constant. What is the new volume?
asked by Aubrey 
math problem
the united kingdom,denmark,and norway have a total of 20 territories. norway has 1/5 as many territories as the united kingdom.denmark has 2 territories.how many territories does norway have?
asked by leslie 
English
I have to deliver a fiveminute speech at a farewell party organized for the the American students who partecipate in the schoolexchange programme. Can you please help me organize my ideas or suggest a site where I could look for information? I really
asked by Mike 
Science
An echo ping is heard by a weapons control officer, onboard a destroyer, 2.0 seconds after a sound pulse is initiated in saltwater. What is the depth of the target object?
asked by Rico 
Algebra 2
During the first part of a trip a canoeist travels 93 miles at a certain speed. The conoiest travels 5 miles on the second trip at 5mph slower. The total time for the trip is 2 hrs. What was the speed on each part of the trip? Thank you for all your help.
asked by Esther 
math
write an expression for the area of a triangle with a base of b inches and a hei9ght of 12 inches
asked by lisa 
English
Posted by rfvv on Wednesday, March 30, 2011 at 9:51pm. 1. Dancing is fun. (Is 'fun' and adverb or a noun? English  Writeacher, Wednesday, March 30, 2011 at 9:57pm In this sentence, it's an adjective, modifying "Dancing." English  rfvv, Thursday, March
asked by rfvv 
algebra
given a density of 1.25lb per gallon an volume of 1.6 gallon find the mass.
asked by f b 
English  Native speakers
Hello! How do you call a person who checks if passengers in buses or trains have tickets? It is not a conductor right? Conductor is a person who conducts an orchestra. Another question: How do you call the woman who is helping a woman to give birth? and do
asked by Mark 
PHYSICS_URGENT
What is the pressure gradient (the drop of pressure per length unit) in a blood vessel with a volume flow rate of ÄV/Ät = 35 cm3/s and an inner diameter of 15 mm. Hint: the viscosity coefficient of blood in the specific case we study is çblood= 2.7 x
asked by Anonymous 
English
The water from a well in Russia can grow your hair back. (What is the meaning of the sentence? grow....back?)
asked by rfvv 
Math
Charlotte wants to conduct a survey to find out if the people in her town think that the town should build a new library. Which group of people would be a representative sample to survey? A. parents with children in middle school B. every twentyfifth name
asked by Sammy 
world geography
Why have the people of West Africa started to work at the local level to help their economies?
asked by Luke 
Math
To allow for more dancers the country club can increase the dimensions of the dance floor in 5 foot increments in either direction ; however the committee would like to maintain a square shape. Let n represent the number of 5'increases to the length pf
asked by Kylie 
Algebra
Write a radical for exact length of the diagonal of the 30 by 30 dance floor. simplify the radical. Im not sure how to do this.
asked by Kylie 
math
What is 5,280 feet divided by 26 miles? 5th grade
asked by Vinny 
safety
true/false 1) you should never mix bleach with and other chemical. 2) each container of a chemical product and all spray bottles must have satefy information labels. 3)in osha's standards labels rate chemicals with regard to health, fire, and reactivity
asked by cici 
Chemistry
Given that 14.2 liters of chlorine gas react according to the following equation... Cl2 + 3 F2> 2ClF3 Question: If all gases were under the same conditions of temperature and pressure,what volume of chlorine triflouride would be produced? (using mole
asked by Sam 
Chemistry
Given that 14.2 liters of chlorine gas react according to the following equation... Cl2 + 3 F2> 2ClF3 Question: If all gases were under the same conditions of temperature and pressure,what volume of chlorine triflouride would be produced? (using mole
asked by Sam 
physical
our p.e. teacher makes us do alot of laps and the other day i fell on my spine is it good for me
asked by jimena 
Algebra 1A
Solve for the missing piece of the equation and rewrite the equation. y = mx  16 (17,8)
asked by James 
English
Is this synthesizin1. Alice Axia informs us of ways in which we can reduce our tax obligations in any given year. Based on studies she cited, there were cases in which some tax filers were unaware of various deductions they were eligible to claim. In some
asked by Kathy 
Geometry
Find the area of this quadrilateral with the given vertices: A(8,6) B(5,8) C(2,6) D(5,0)
asked by shannon 
math
i am a fifth grader and behind in math can you show me how to work this problem. two angles in a triangle are given. find x if x is the third in the triangle. 100 degree, 56 degree, x
asked by Anonymous 
chemistry
spherical coordinates if n=2,l=1,ml=x, add up all the probabiliity densities.
asked by OLGA 
English
I forgot the last two sentences. They are urgent!! 1)Can you write your name and email on this sheet of paper so that we can get in touch with you (each other?) when you are back in America? 2) I would be pleased if our students could start sending
asked by Mike 
math
k=1/2mv^2, for m V= h/e v E/e, for e Please help.
asked by CJ 
math 8th grade
One of a pentagon's sides is 3 feet longer than the other. If the perimeter of the pentagon is 128m, how long is the longest side?
asked by cody gilliam 
English
Hello. Please help me understand the sentence: "I took my picture" (does it mean that I photographed myself or that I took it into my hands just like a book or a scarf). And if I photographed myself, is it possible to say "I took a picture of myself"?
asked by Ilma 
Math
The area of a square table is 64cm. Find the perimeter of the sqare table.
asked by Polly 
American History
Create a timeline tracking the major themes/paradigm shifts in American History from the Columbus's voyages through the MexicanAmerican War (18461848).
asked by Sylvia 
John A Macdonald
Doing a bio on Macdonald Need simple term websites about him.
asked by Anonymous 
chemisty
What is the percent bromine in a compound made of 1g of hydrogen and 80g bromine?
asked by nique 
english
when i count how many words are in my essay do i count articles .. ??
asked by Anonymous 
algebra
i need help with 5th grade algebra my big bro. is helping me but i don't understand
asked by barbra 
physics
Two person watch the same object move.Marty says it accelerates straight up downward,but joanne claims it falls along a curved path.describe the conditions under which each person would be reporting correctly what they see. sorry for my mistakes can you
asked by chris 
physics urgent please
Give an example of projectile motion;include in your explantion the term "velocity" , "accleration" and "displacement", orginality in your example will be appreciated?
asked by chris 
Math
If f(x)= Sqrt(2+5x) find f^1.
asked by Dillan 
chemistry
How many grams of magnesium iodide are needed to make 125 ml of a 5M solution
asked by John 
physics
Have to figure out 1 before 2 and don't know were to start? 1)The tension in the above string is 84.0 N. Calculate the mass of a 3 m long piece of the steel string. 2)Find the wavelength of the third harmonic of the guitar string described in the problem
asked by Jamie 
Math
if (a+b)squared=64, and ab=3, find a squared+ b squared
asked by Rhonda 
Physics
The string is 1.40 m long with tension 12.00 N. The total mass of the string is 0.010 kg. Find the wavelength of this standing wave in meters
asked by College student in need of help 
ENG 121
what are some examples of similarities and differeces in working mothers vs stay at home mothers?
asked by tina 
Science
How are pressure wave crests and troughs related to longitudinal wave?
asked by Rico 
physics in five mintues
hi how can you relate potential difference to finding the radius of a postivie ion moving through a magnietic field? thank you!
asked by studetn 
algebra
F(4)=8 what is the ordered pair
asked by Laurie 
Credit Cards  Situation
A young entrepreneur wants to borrow money to rent a building & purchase equipment that she will use to start a new business in her community. Im guessing that she should, although Im not sure why...
asked by Yipee 
Credit Cards  Situation
Linda wants highpriced dress to wear to her graduation formal. She plans to charge her purchase and pay for it over the following year. I don’t think this is a wise decision, because that’s really just being foolish, I mean what if by next year, she
asked by Yipee 
Geometry
Find the area of this quadrilateral with the given vertices: A(8,6) B(5,8) C(2,6) D(5,0)
asked by shannon 
mastering physics
Find an expression for , the tension in cable 1, that does not depend on . Express your answer in terms of some or all of the variables , , and , as well as the magnitude of the acceleration due to gravity .
asked by Anonymous 
math
find the inverse of f(x)=35x
asked by Anonymous 
math
If a cube is built from an one inch cubes and if each new cube has an edge N times as long as the previous model what would be true of consecutive surface areas
asked by Cheyenne 
calculus
Thank you Reiny for replying.I know names have changed. Perhaps I should put I need to differentiate the function f(x)=(x^26x+23)^3/2 by the chain rule.
asked by john 
physics
Why does a gas become hotter when compressed by a piston in a cylinder?
asked by Christine 
PHYSICS
The string is 1.00 m long with tension 6.00 N. The total mass of the string is 0.012 kg. Find the wavelength of this standing wave in meters.
asked by Now Going to give up! 
Health
Development of male genitals before birth is due to what?
asked by Tammy 
Physics
What is a node? i'm supposed to label the nodes in a diagram of a wave but i can't find it anywhere
asked by Aria 
math 8th grade
One of a pentagon's sides is 3 feet longer than the other. If the perimeter of the pentagon is 128m, how long is the longest side?
asked by cody gilliam 
American Literature II
What is the importance of Alice walker, "You cannot keep a good women down" story in between 1865 to present day.
asked by ami 
PreCalculus
2secx= 3cscx
asked by Erika 
Credit Cards  Situations
Here, Im given some lists of situations, and for each situation, Ive got to figure out if using credit would be a wise or unwise decision. Rosy’s car crashes down as she is on a business trip, its going to cost her over $2000 to have it fixed. She does
asked by Yipee 
Stats
With technology, is it necessary to use one sample z test for large sample instead of binomial testing?
asked by Jane 
math
Highest possible amount of money that a player can win in one day in jeopardy?
asked by Heather 
Geometry
the area in a circle of each shaded region is given. Find x The given is 66 the angle is 180
asked by shannon 
english
i need help writting a thesis statement
asked by lidia 
American History
Create a timeline tracking the major themes/paradigm shifts in American History from the Columbus's voyages through the MexicanAmerican War (18461848)
asked by Sylvia 
chemistry
when on has lager radus A sodium atom or siliciom atom.
asked by amm 
health
1. How do HR laws or health care regulations impact performance appraisals? 2. What are the legal implications a manager must consider when conducting performance appraisals?
asked by bobi 
geometry AGAIN
Which sold has the most vertices? A.Triangular Prism B. Rectangular Prism C.Rectangular pyramid D.Square Pyramid
asked by liz 
English
need help with thesis and topic sentences. Is this a good thesis? Social networking help change the we speak it is daily journals,send invitation to events, and meet new friends.
asked by Anna 
French
I don't understand why some verbes pronominaux use s'y instead of se. What is the function of the y? And how does it change the meaning?
asked by Corinne 
English
Can you please check these sentences. Thank you very much for all! 1) What is your school day like? Can you drive a car? How old must you be to drive a car in America with you parents'supervision? 2) Are there vending machines at your school where you can
asked by Mike 
chemistry
when 52 moles of benzene combine with oxgen, how many moles of carbon dioxide are produced? what else is produced in addtion to the carbon dioxide
asked by tim 
English
Is this a summary?Alice Axia’s article discussed overlooked tax deductions. It talked about some of the most commonly missed deductions. Whereas her use of statistics seemed to bolster her arguments, it would have been nice to see her elaborate more
asked by Kathy 
English
I forgot to include the following sentences. They are really urgent! 1) Each of you should choose a group, get a chair and start chatting with that group 2) You divide (yourselves) into groups of four and interview an American student for twenty minutes.
asked by Mike 
chemistry
what is the specific heat capacity of substance X when 34.80 g of X is heated from a starting temperature of 20.5 C to 40.9 C by 2.54 kJ of energy
asked by jessica 
Economics
Heya! Okay so what income can be earned from land and what can be earned from enterpreneurship. I know that its profit for capital and wages/income for labour Thanks!
asked by Tiyana 
math
suppose i invest $3000 per year for 35 years in an investment account which earns 9.5%. Approximately how much will I end up with?
asked by charlee 
algebra
find the interest paid at a rate of 8% on $4000 for 3 years
asked by f b 
math
If f(x)=x and g(x)=x+1 find the function and its domain: 1. gof 2. fof
asked by Jeromino 
math
If f(x)= Sqrt 2+5x find f^1.
asked by Anonymous 
svq2
how do i write a reflective account on communicating effectively wi th a service user in a care home
asked by she 
math
measure and then draw then draw lines in the rectangle to show it has an area of 36cm How?
asked by Cierrah 
English
Is this analyz1. In “Unclaimed Deductions,” Alice Axia wrote about the most commonly overlooked deductions when filing a 1040 tax return. She provided information about the total number of missed deductions. In a separate article, titled “The
asked by Kathy 
physics
give an example of projectile motion;include in your explantion the term velocity , accleration and displacement orginality in your example will be appreciated?
asked by chris 
chemistry
what is a strong acid
asked by auro 
math
What is the connection between the square numbers and triangular numbers in arrays as shown below with a line drawn to show the array as 3/6? ... ... ... and .... .... .... .... array shows 6/10?
asked by suzie 
math
What is the total value of a 400 certificate of deposit after 36 month if the simple annual interest rate is 3 percent?
asked by sami 
calculus
Please can someone help. I need to use the composite rule to differentiate the function f(x)=(x^26x+23)^3/2. Any help would be greatly appreciated.
asked by john 
geometry
what's the area of a parallelogram with a height of 48 ft and a base of 40 ft
asked by Briana 
English
Make sure all of the commons are used correctly. If I need to add commas please show me where.And any other errors Thanks In your letter of July 18, you made a settlement demand of $20,000; accordingly, we have forward your settlement demand, the medical
asked by angela 
Credit Card  Situations
Hayden needs some equipment for the apartment he is renting while attending college. He finds some things on sale at a reasonable value, and he opens a charge account with the retailer. I don’t understand this one, since the items are on sale, couldn’t
asked by Yipee 
math
dont know how to solve this equation but I have all the info. m= M + 5 log(d/10)=18+5 x log(5/10)=
asked by james 
science
Why do you think the joints between your rigcage & beastbone are partly movable ?
asked by jjois 
math
Consider a party with 60 people. Assume each person knows more than m other people. How large must m be to guarantee that 3 people know each other?
asked by Becky 
language
help me solve this analogy closed is to emptiness as open is to occupancy vacancy security enclosure
asked by mandy 
Geography
I have the question "how does nose shape relate to climatic zone" and its not in my book and I can't find when I google it. Does anyone one have another idea. Thanks
asked by Michael 
algerbra/astronomy
m= M + 5 log(d/10)=18+5 x log(5/10)=
asked by james 
ugh
ugh i love how there are ppl after me and i STIll don't get help
asked by Jamie 
health
Why risky sex is a serious matter?
asked by Tammy 
Maths  IQR
Hi! How do you work out the Inter Quartile range? WHats the name for xbar and how do you work this out? THanks
asked by Sasha 
math
how many liters are in 30 gallons
asked by m,ary 
math
if Y = _X2 6x  8 find the value(s) of x when y =1.
asked by michele 
PreAlgebra
Find any numbers for which each rational expressionis undefined. 9y^5+y^3/9
asked by Nancy 
Matt 116 Algebra
This is a discussion problem. y = 45x + 12 I need help solving it
asked by Angela 
science
Replication is called "semiconservative" because half of the orginal strand is? idk i been workin on the question 4 an hr!!
asked by Angel 
Math
Hi! I need to work out how much water is used per minute in my showerhead, per toilet flush, each dishwasher load, washing machine cycle and taps. How would you suggest I do this if I cannot access the information online? Thanks
asked by JJ 
geography
what geographical features affect the economy of india
asked by lessley 
Math
If f(x)= sqrt(x+1) find f^1 and sketch its graph. If you can't sketch the graph that is fine I will figure that part out. Thanks
asked by Dillan 
science(physics)
two perons watch the sameobject move marty says it accleartes downward but joanne clams it falls along a curved path describe the condtions under which each person would be reporting correclty what they see.
asked by chris 
math
the width of a row of 25 seats in an auditorium if each seat is 0.7 m wide
asked by jayson 
math
use n equals 22 over 7 find the area of a circle with a radius of 7
asked by scott 
Math
Does a gallon hold more or less than 5 quarts?
asked by brian 
algebra
1/5*5/3
asked by zehera 
math
Sa
asked by tim 
science
where in the cell are the chromosomes located?
asked by Bella 
english
In one of the english examiinations, I answered the questions like this, if any mistakes please correct it and explain for which act of kindness I would be very greatful to you. Fill in the blanks with correct options. 1. During a severe earthquake, entire
asked by Ramesh Reddy 
maths
how do you do taking away fractions like for eg 2 1/5 take away 1/10
asked by ella 
science(physics)
give an example of projectile motion;include in your explantion the term velocity , accleration and displacement orginality in your example will be appreciated?
asked by chris 
english
what is the language in the book strange objects for the journal items?
asked by Tori 
math
what percent of 1 is 4.7?
asked by mike 
science
where in the cell are the chromosomes located?
asked by Bella