Questions Asked on
January 24, 2011

  1. Geometry Ms. Sue help please?

    Ms. Sue, can you help me again? you replied to my question but i still need a bit of help Small Pizza- radius 6 in. cost $9.75 Medium- radius 8in cost $12 Large-diameter 20 in cost $16.50 The edge is stuffed with cheese, and its the best part of the pizza/

    asked by Skye
  2. chemistry

    What is the concentration of chloride ion when 75ml of 4.50m NaCl is mixed with 125mL of 1.42M FeCl3?

    asked by Erica--please help!
  3. food styles of catering

    At a cocktail party,you can expect the average person to eat how many hors d'oeurves in two and a half hours? A 8 B 10 C 15 D 20

    asked by sarah
  4. english

    How can I write a Persuasive Essay Outline on Physical Eduation?

    asked by Jesus
  5. Physics

    After driving 20.0 km west, a car turns southwest and proceeds another 80.0 km. What is the displacement (in kilometers) of the car from the point of origin (magnitude only)?

    asked by Nick
  6. Grammar

    1. Individual Assignment: Practice with Pronouns, Adjectives, Adverbs, and Comparisons • 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

    asked by Carmelita
  7. physics

    three point charges are placed at the following points on the x-axis: +2µC at x=0, -3µC at x=40 cm, -5µC at x=120 cm. Find the force (a) on the -3µC charge (b)on the -5µC charge.

    asked by Joanna Luz
  8. 6th grade math

    Form and equivalent division problem for 5 / 1/3 by multiplying both the dividend and divisor by 3. Then find the quotient. IS it 5 / 3/9 Do I finish by mutliplying 5/1 x 9/3(reciprocal)?

    asked by Suzanne
  9. physics

    pls help me solve this problem.. charges of +2.0, 3.0 and -8.0µC are placed at the vertices of an equilateral triangle of a side 10 cm. Calculate the magnitude of the force acting on the -8µC charge due to the other two charges.

    asked by Joanna Luz
  10. physics

    A. There are 28 g of salt dissolved in 400 ml of water. Consider the quantity 0.07 = 28/400. 1. Give the name of the quantity if there is one. 2. What is the interpretation of . 07 g in this context? 3. Use the interpretation to find the amount of salt

    asked by andrea
  11. physics

    B. You can get 28 oz of spicy pretzels for $4.40, or you can get 16 oz of regular pretzels for $2.30. 1. Which is a better deal? Explain your reasoning. 2. How much would 16 oz of the spicy pretzels cost, assuming the same price per ounce?

    asked by andrea
  12. math

    PLEASE!!!!i need help on these 4: *4y=15-3x 2y=3x+21 *4x=5y-14 y=-6x-9 *5x=4y-30 2x=3y=-12 *2/3y=10+4x 5x=1/3y-8 use linear combinations to solve the system of linear equations thank you!!!

    asked by HELP me please asap!!
  13. math

    PLEASE!!!!i need help on these 4: *4y=15-3x 2y=3x+21 *4x=5y-14 y=-6x-9 *5x=4y-30 2x=3y=-12 *2/3y=10+4x 5x=1/3y-8 use linear combinations to solve the system of linear equations thank you!!!

    asked by HELP me please asap!!
  14. physics

    Problem: A sample of liquid has amass of 1.04 kg and a volume of 1300 ml. If the mass of the sampleis to be increased by 70 g by adding more of the same kind kind ofliquid, what volume of liquid must be added? Solution given: 1) 1040/1300=.80 2) 70/.80=88

    asked by andrea
  15. physics

    Problem: Two blocks of metals have the same mass. The first block has a volume of 827 cm^3 and a density of 4.50g/cm^3.Thesecond block has a volume of 193cm^3. What is the density of thesecond block ? Solution: (1) 4.50x827=3720 (2)3720/193=19.3 1. Give an

    asked by andrea
  16. math/ CIRCUMFERENCE of a circle

    A person has a measuring wheel that records the distance the wheel is rolled along the ground. The circumference of the wheel is one yard. If the wheel is pushed half a mile, how many times will the wheel go around (1mi=5280 ft)?

    asked by Suzanne
  17. math/ CIRCUMFERENCE of a circle

    A person has a measuring wheel that records the distance the wheel is rolled along the ground. The circumference of the wheel is one yard. If the wheel is pushed half a mile, how many times will the wheel go around (1mi=5280 ft)?

    asked by Suzanne
  18. gggg

    what are the equation of a line through (8,-3) and passing distance square root of 10 from (3,2)

    asked by geometry
  19. devry

    A small startup software developer company needs to create a program that will calculate the pay of its employees. For the third version of the program, the company wants the program to accept an employee’s name, the number of hours the employee worked,

    asked by pp
  20. math 10

    how do i work out the answer to: "how many integer values are there for k for which 4x^2 + kxy - 9y^2 is factorable?"

    asked by jordan
  21. spanish

    Is this the correct spanish prepositional pronoun in this sentence? Chicos, voy a hablar con la señora Perales, en un momento estoy con ellos?

    asked by Anonymous
  22. com170

    CAN YOU TELL ME IF I HAVE FIVE ADVERBS FIVE ADJECTIVES AND FIVE PRONOUNS I recently had a serious talk with my sister about her personal finance; she wants to be able to buy a new home this year. We carefully went over all her finance, while doing this we

    asked by angela
  23. organic chemistry

    in gas chromatography, why do E1 and E2 give different peaks (areas) though it's the same compound?? For example, for 1-butene, the percent composition is low in E1 but very high in E2.

    asked by Yoo
  24. Science

    What is the frequency of a wave if the movement of the wave is one hundredth (1/00) of a second?

    asked by Donnie
  25. Science

    Would you expect orange juice to be more dense than water? Explain.

    asked by Micheal
  26. physical chemistry

    The freezing point of a sample of abnormal blood was found to be -0.402 degree celsius. Estimate its osmotic pressure at 37 degree celsius. Kf(water)=1.86

    asked by yogita n sarki
  27. algebra 2

    find the quotient and remainder of 3x^5-2x^4-5/6x^2-x+4 using long division

    asked by vio
  28. mathematics

    1.An aquarium has the shape of a rectangular prism.It's length is 80 cm.its width is one-half of the length and its height is three-fourths of the length.What is the volume of the aquarium in cm3?

    asked by maricel
  29. chemistry - density and error (check)

    Calculate the density of earth and the density error. i got the answer 5.57*10^3k +/- 9.60 *10^7kg/m is that the correct answer? please help

    asked by Farah
  30. math

    i only need help on these two: *2/3y=10+4x 5x=1/3y-8 *5x=4y-30 2x+3y=-12 DIRECTIONS:use linear combinations to solve the system of linear equations.. thanks :)

    asked by HELP me please
  31. chemistry 1310

    The decomposition of nitrosyl bromide is followed by measuring total pressure because the number of moles of gas changes; it cannot be followed colorimetrically because both NOBr and Br2 are reddish brown: 2 NOBr(g) ® 2 NO(g) + Br2(g) Use the data in the

    asked by shamia
  32. Math 157

    Copy each equation in Exercises 31–33. Replace the boldface italic letter with a number that shows the relationship indicated in the table. Then copy each table and complete it by using the corresponding equation. 32. y = -x + b x y 1 0 2 -1 8 -7 10 ? 20

    asked by Rena
  33. Biochemistry

    What is the concentration of HNO3 in a solution that has a pH of 3.4?

    asked by Freddy
  34. Critical Thinking

    What is the value of looking at an idea as a four categorical proposition.

    asked by SueAnn
  35. Chemistry

    Which of the following is the BEST explanation for why a catalyst speeds up a reaction? A) The catalyst increases the concentration of the products B) The catalyst decreases the total pressure in the container. C) The catalyst raises the temperature of the

    asked by Howard
  36. english

    huh??? If the form(s) of documentation you listed in the previous problem is (are) missing, why will an assignment be plagiarized?

    asked by Anonymous
  37. calculus

    Factor completely x^3 - 5x^2 - x + 5

    asked by Alyssa
  38. density and density error (check calculations)

    Calculate the density of earth and its density error d=m/v where m = 6.00*10^24kg and v = (4/3)(pi)(6359000)^3 = 1.07709...*10^21 m^3 therefore d=6.00*10^24/1.07709...*10^21 m^3 d = 5570.5254...kg/m^3 using the sig fig rule, in division and multiplication

    asked by Farah
  39. Chemistry

    Calculate the concentrations of S2O8 2-, I-, S2O32 2- in moles per litre of reaction mixture given the following: 20mL of 0.1 M (NH4)2S2O8 added to: 20mL of 0.2M KI 10mL of 0.01M Na2S2O3 5mL 0.2% starch Also, calculate -(delta)S2O8 2- that is, how much

    asked by Rachel
  40. math

    what is the sum of the 1st 10 terms of the arithmetic series that has a 10th term of 50 and a 1st term of 5

    asked by roberto
  41. Science

    What is the pronunciation rebus of helium?

    asked by Fred
  42. math

    which of the following sums is larger and by how much? 1. 7 over Sigma 15/4(pi/10)^n 2. 11 over Sigma 17/4(4/13)^n please help me with the steps on how to figure this out! thanks

    asked by jackie
  43. physics

    A blow-dryer and a vacuum cleaner each operate with a voltage of 120 V. The current rating of the blow-dryer is 12 A, and that of the vacuum cleaner is 5.5 A. Determine the power consumed by the blow-dryer. Determine the power consumed by the vacuum

    asked by Anonymous
  44. Business Finance

    What is the PV for a bond that has 85 interest, $1000 par, 16 yr maturity, market price of $ 1,035, flotation costs of 15%. The firms tax bracket is 34%

    asked by Roxie
  45. physics

    Calculate the force of gravity on a 12 kg mass if it were 6.4 106 m above Earth's surface (that is, if it were 2 Earth radii from Earth's center.)

    asked by Anonymous
  46. Physics

    Two cars start from rest at a red stop light. When the light turns green, both cars accelerate forward. The blue car accelerates uniformly at a rate of 3.5 m/s2 for 3.6 seconds. It then continues at a constant speed for 10.1 seconds, before applying the

    asked by Hayls
  47. physics

    Calculate the force of gravity on a 12 kg mass if it were 6.4 106 m above Earth's surface (that is, if it were 2 Earth radii from Earth's center.)

    asked by taylor
  48. physics

    Calculate the force of gravity between a newborn baby of mass 4 kg and the obstetrician of mass 60 kg, who is 0.5 m from the baby. 1 N Which exerts more gravitational force on the baby, Mars or the obstetrician? 2 obstetrician Mars both exert the same

    asked by taylor
  49. Math

    For each of the following decimal numbers, give the place value of the underlined digit. 97,998 (the line is under the 7) Thank you!

    asked by Mike
  50. marketing

    what special advantages and potential problems did 3m have in introducing a new highlighter with flags product for college students in 2004

    asked by jo
  51. chemistry

    Can anyone tell one molecula water H-----O------H with how maximum number of other molecule can joined together with Hydrogen bond? and CH3COOH how is joined with H-----O----H with Hydrogn bon?Thanks

    asked by Defrim
  52. math

    The Aesthetic Garden Problem. A landscape architect wants the length of a rectangular shaped flower garden to be twice the width. The garden should have a total area of 288ft^2. what are the dimensions of the garden?

    asked by Rena
  53. Human Service

    If a person comes into your offices saying he/she have a schedule interview and the employer claims that he/she does not, What would you say to the person

    asked by Quentina
  54. geometry

    What is the volume of a pyramid with a base area of 27 and an altitude of 6

    asked by malcom
  55. physics

    1.How does a lightning rod work? What is the purpose of a lightning rod? 2.How does an electrically polarized object differ from an electrically charged object?

    asked by beauty
  56. physics

    1. What is an electric dipole? 2. A balloon may easily be charged to several thousand volts. Does that mean it has several thousand Joules of energy? Explain.

    asked by beauty
  57. physics

    1. Does an electric field exist within a charged spherical conductor at points other than its center? 2. Why is there no electric field at the center of a charged spherical conductor?

    asked by beauty
  58. physics

    1. How does the charge on one plate of a capacitor compare with that on the upposite plate? 2. Why is that you are safe from a lightning storm if you are inside an automobile?

    asked by beauty
  59. physics

    1. How does a Van de Graaff Generator work? What is the magnitude of the electric field inside the dome of a charged Van de Graaff generator? 2. How does the charge on one plate of a capacitor compare with that on the opposite plate? 3. How does a

    asked by beauty
  60. Math Please Help

    Solve for v. v+6/5=3/5v-7/3 Simplify your answer as much as possible.

    asked by Jen
  61. Math-word problem

    To rent a certain banquet hall, there is a reservation fee of $4200.00 and an additional fee of $180.00 per hour. The Russell family wants to spend at most $5100.00 on renting the hall. What are the possible amounts of time for which they could rent the

    asked by Rachal
  62. Vocabulary

    Fill the blank, please. 1. Though his parents urged him to be more ________, Billy was naturally shy and timid. 2. Hannah tried not to let the way someone dressed _______ her opinion of that person.

    asked by Haily
  63. algebra

    WHAT IS THE AMOUNT OF MONEY PAID OR EARNED FOR THE MONEY USED

    asked by KAYLA
  64. science

    what is an idea that i could use to explain the water cycle including evaporation, condensation, run off, etc?

    asked by Linda
  65. math

    if 8m cloth costs RS 250 find the cost of 5.8m of the same cloth

    asked by Anonymous
  66. geometry

    George is building a model of his father's sailboat with a scale factor of 1:32. The actual sail is in the shape of a right triangle with a base of 8 meters and a hypotenuse of 13 meters. What will be the approproximate perimeter of the sail on the model

    asked by Marjorie
  67. math

    With regards to question J: The variables x and y are connected by the equation y = x2 - x - 5. Some corresponding values of x and y are given in the table below. x -4 -3 -2 -1 0 1 2 3 4 5 y 15 7 a -3 -5 b -3 1 7 15 (a) Calculate the values of a and b (b)

    asked by jun
  68. reimbursment methologies

    when coding late effects, the code for the what is usually sequenced first

    asked by kim
  69. chemistry

    which stereoisomer of citric acid is produced in the citric acid cycle?

    asked by tai
  70. Geometry

    1. MO bisects LMN, LMN = 5x-23, LMO = x+32. Find NMO. >>I got the answer 45.75 but I got it wrong. I do not know how to solve this question and I have tried all that I know. Please help..

    asked by Needs Help
  71. math

    I had to repost this since I hit the submit button by mistake Use patterns or a linear equation to complete the table. column x 1,3,5,10,50,100 column y -1,3,7,?,?,? I tried several combinations using -3,2,and -1 in place of m but still not coming out

    asked by m
  72. calculus

    Consider a car whose position, s, is given by the table t(s) s(ft) 0 0 .2 0.35 .4 1.8 .6 3.8 .8 6.5 1 9.6 Estimate the velocity at t=0.2

    asked by Laurin
  73. statistics

    For a population that has a standard deviation of 10, figure the standard deviation of the distribution of means for samples of size- (b) 3.

    asked by kim
  74. statistics

    For each of the following samples that were given an experimental treatment, test whether these samples represent populations that are different from the general population: (a) a sample of 10 with a mean of 44, (b) a sample of 1 with a mean of 48. The

    asked by kim
  75. Physics

    Find the electric field (in N/C) at a point r =1.4 m above a point charge Q= -78 C. Take upwards to be positive.

    asked by Nadya
  76. Math Urgent

    (square rt. 5) +(square rt. 20)=

    asked by Anonymous
  77. English!! Double check my answer?

    Choose the answer that identifies the underlined word. Well, I must say that your ideas are quite creative. ("creative" is underlined) direct object indirect object x objective complement predicate adjective

    asked by Haily
  78. Help Please!

    Charges of −4q are fixed to diagonally opposite corners of a square. A charge of + 5q is fixed to one of the remaining corners, and a charge of + 3q is fixed to the last corner. Assuming that ten electric field lines emerge from the + 5q charge, sketch

    asked by Brian
  79. geometry

    use the distributive property to remove the parentheses from this problem

    asked by lisha
  80. Physics

    An airplane lands and starts down the runway at a southwest velocity of 46 m/s. What constant acceleration allows it to come to a stop in 1.1 km? PLEASE HELP ME WITH THIS QUESTION AND PROVIDE AN EXPLANATION IF POSSIBLE!!!! THANK YOU!

    asked by MB
  81. English

    Can you check these sentences for me, please? Thank you very much. 1) Eton College is one of the original nine English public schools and was founded in 1440 by King Henry VI . It is located in Eton, near Windsor in England, north of Windsor Castle. 2) It

    asked by Franco
  82. Spanish

    What is the House Of Tiles?

    asked by Needs Help
  83. Grammar! please check my answers!

    Choose the answer that describes how to correct the misplaced phrase. The suspect is a tall man with a beard weighing about two hundred pounds. Move with a beard to the beginning of the sentence. Place weighing about two hundred pounds right after man.

    asked by Haily
  84. Physics

    A 0.41 kg football is thrown with a velocity of 17 m/s to the right. A stationary receiver catches the ball and brings it to rest in 0.023 s. What is the force exerted on the receiver? Answer in units of N.

    asked by Michael N.
  85. Physics

    Two charges are D = 1.5 m apart and lie on the x-axis. What must be the magnitude of the charge on the right one, Q2, (in C) so that the electric field is zero at x = 1.05 meters. Let Q1 be at the origin and have a charge 6 C.

    asked by Nadya
  86. Physics

    An 75 kg man drops from rest on a diving board −3.1 m above the surface of the water and comes to rest 0.6 s after reaching the water. The acceleration due to gravity is 9.81 m/s2. What force does the water exert on the man? Answer in units of N.

    asked by Michael N.
  87. Physics

    A 0.48 kg soccer ball approaches a player horizontally with a velocity of 18 m/s to the north. The player strikes the ball and causes it to move in the opposite direction with a velocity of 24 m/s. What impulse was delivered to the ball by the player?

    asked by Michael N.
  88. organic chemistry

    in gas chromatography, why do E1 and E2 give different peaks (areas) though it's the same compound?? dehydration of a secondary alcohol proceeds readily with the presence of strong acid and proceeds with E1 mechanisms. Removing product from chemical system

    asked by Yoo
  89. Physics

    A metal sphere of radius R = 28 cm carries a total charge Q = 0.5 microC. What is the magnitude of the electric field (in N/C) just outside the sphere?

    asked by Nadya
  90. Grammar! Am i correct?

    Choose the answer that identifies the underlined word. Well, I must say that your ideas are quite creative. ("creative" is underlined) direct object indirect object objective complement x predicate adjective

    asked by Kayla
  91. trig

    find all values of x on interval 0-2pi. (sin4x)(cos7x)=(cos4x)(sin7x) identities should be used.

    asked by Ashten
  92. geometry

    The rectangular label will completely cover the lateral surface of the can using as little paper as possible. If the can has a height of 12 cm and a diameter of 5 cm, then what are the width and length (to the nearest centimeter) of the label?

    asked by Austin
  93. American History

    What is the significance of providing an official charter, such as was given to Sir Walter Raleigh by Queen Elizabeth?

    asked by PLEASE HELP!!!
  94. math

    It takes mary x hours to travel 100 kilometers. If she increases her speed by 5 kilometers per hour, the journey will take her 3 hours less time. Find x.

    asked by Taylor
  95. Economics

    What are the basic characteristics of pure competition, and the importance of understanding of the pure competitive economic model to the manager of the real world firm.

    asked by kamara
  96. english

    whate are two causes for hiv and aids

    asked by Anonymous
  97. geometry

    what solid figure can you make if you combine two congruent cubes

    asked by noah
  98. physics

    A bb player crouches lowering center of gravity 0.3m. when he jumps, center of gravity reaches 0.9m above normal. A. Calculate velocity when feet left ground. B. Calculate acceleration produced to achieve velocity. C. What force exerted on floor if mass is

    asked by Scott
  99. Chemistry

    The following data is collected for the decomposition of methy isonitrile at various tempertures: Temp.(C) k(/s) lnk 1/T 290--- 2.52*10^-5 ? ? 299--- 5.25*10^-5 ? ? 330--- 6.30*10^-4 ? ? Complete the table above and, using your graphing calculator

    asked by Paul
  100. Chemistry

    Which of the following is the BEST explanation for why a catalyst speeds up a reaction? A) The catalyst increases the concentration of the products B) The catalyst decreases the total pressure in the container. C) The catalyst raises the temperature of the

    asked by Howard
  101. math

    $25 for each passed test and fined $50 for each failed test passed 7 times as he failed and he had $375. how many tests did he pass?

    asked by Jarrett
  102. uOFp

    Imagine you are conducting fieldwork and discover two groups of mice living on opposite sides of a river. Assuming that you will not disturb the mice, design a study to determine whether these two groups belong to the same species

    asked by t
  103. Math

    Evaluate 4X^3 +3Y^3, IF X=2 AND Y=5 I am not sure how to work this out

    asked by Rena
  104. Pre Algebra

    The ratio of the length of a rectangular field to its width is 10:7 if the width of the field is 70 meters find the perimeter of the field.

    asked by Izabel
  105. Literature- Frankenstein

    Consider the protagonist in "Frankenstein". Explain how Victor Frankenstein character changes over the course of the novel, Frankenstein. Please include examples of these changes in the response. I have to write no fewer than three paragraphs, so please

    asked by Kayla
  106. Math

    102,105,111,114,120,123,129,_,_,_,_,_, 201,204,210,213,219

    asked by Jay
  107. math

    i am having difficulties figuring this out.... a ball has dropped from a height of 15m and bounces 60% of the previous height. the total distance ball travels after the 9th bounce is... i got this equation done but i do not know how to calculate this to

    asked by jackie
  108. Statistics for social sciences

    A population with a mean of u=10 has EX=250. How many score are in the population?

    asked by Dana
  109. science

    if i am 11 how old will i be when the life that is leaving the star arcturus reach the earth and how far in kilometers will it have traveled

    asked by madelyn
  110. Literature- Frankenstein

    Consider the protagonist in "Frankenstein". Explain how Victor Frankenstein character changes over the course of the novel, Frankenstein. Please include examples of these changes in the response. I have to write no fewer than three paragraphs, so please

    asked by Kayla
  111. math

    what is the standard deviation of these numbers 7 9 7 10 8 7 9

    asked by keke
  112. math

    how to find the height of a trapezoid with median 12 and area 84

    asked by rachel
  113. math

    lcd of 1/125+62/50

    asked by kdk
  114. Science

    what is an 11 lettered word that means "a cell without a membrane?

    asked by Erin
  115. science

    what is a name given to all of the functional parts that float in cytoplasm??? ( it has to be 10 letters)

    asked by Erin
  116. Chemistry

    a dose of asprin of 5.0mg per kilogram of body weight has been prescribed to reduce the fever of an infant weighing 8.5 pounds. Calculate the number of milligrams of asprin that should be administered.

    asked by Jamie
  117. language arts

    there are three words to use to fill in each blank... the words are 1. automatic 2. tenant 3.volley here are the sentences: 1. OCCUPANT is to _________ as CHILDISH is to JUVENILE 2. BY HAND is to _________ as PALE is to BRIGHT 3. BARRAGE is to _________ as

    asked by Bri
  118. math

    If g(x)= -2^2 and h(x)=x-2/5. Find the indicated value. h(g(5)) I got -5.4. is that right?

    asked by Zach
  119. math

    h(x) = x-2/5 find the indicated value of h(h(-4))

    asked by Amanda
  120. math

    102,105,111,114,120,123,129,_,_,_,_,_, 201,204,210,213,219 is not +3+6+3+6 TRY it yourself

    asked by Jay
  121. Chemistry

    How do you make Tris into the acid form?

    asked by Jason
  122. GEOMETRY

    RayMO bisects AngleLMN, The Measure of AngleLMN =5x-23, The Measure of LMO = x+32, O is the point is from RayMO, the point when a bisect is made. Find AngleNMO.

    asked by NEEDS HELP
  123. math

    n2=144 what is the value of n

    asked by sam
  124. Math

    Multiply. (-1/5) X(-7)X(4/7) Write your answer as a fraction in simplest

    asked by Jen
  125. Math

    Simplify. Please help me fractions hate me:) (1/25-1/x^2)divided by (1/5+1/x)

    asked by Joe
  126. U.S.History

    After the Civil War, the southern eceonmy was primarily industrial agrarian marine both a and b In my book, it mentions both industrial and agrarian but then it states the econmy was largely agrarian so I'm not sure what I should put down. Which of the

    asked by Ray Scholz
  127. Literature- Frankenstein Novel

    Please check my answer to this question: Consider the protagonist in the novel that you read this semester. In a response of no fewer than three paragraphs, explain how this character changes over the course of the novel. Include examples of these changes

    asked by Kayla
  128. Chemistry

    The following information is given for ethanol, C2H5OH, at 1atm: boiling point = 78.4oC Hvap(78.4oC) = 38.6 kJ/mol melting point = -115oC Hfus(-115oC) = 5.02 kJ/mol specific heat liquid = 2.46 J/goC At a pressure of 1 atm, what is H in kJ for the process

    asked by Jordan
  129. algebra

    12 to the negative 2nd power

    asked by kaivon
  130. Math

    What is the probability that a 76% free-throw shooter will miss his next free throw?

    asked by Chae
  131. English

    Thank you for your suggestions. Here are some more sentences I'd like you to check. 1)On leaving school (After leaving Eton), Orwell served in Burma for the Indian Imperial Police. 2) On his return to England he experienced poverty at first hand. As a

    asked by Franco
  132. math

    number is greater than 50 and less than 100. you can make exactly 5 different rectangles with a mystery numbers of tiles. its prime factorization consists of only one prime number. whats my number

    asked by Anonymous
  133. grammar

    how to make this sentence past perfect? Volunteers blank a truckload of scrap paper. would it be had or have collected?

    asked by hunter
  134. Trigonometry

    Express the following in radians: f.1025degrees. --> (pi/180)*1025 = -185pi/36 Is that correct or theirs another way to do it ??

    asked by Anon
  135. math

    can some please solve everyone because i do get it. 102,105,111,114,120,123,129,_,_,_,_,_, 201,204,210,213,219

    asked by Jay
  136. math

    can some please solve everyone because i do get it. 102,105,111,114,120,123,129,_,_,_,_,_, 201,204,210,213,219

    asked by Jay
  137. Geography

    This is a question about acid rain, in Canada in particular. Acid rain is an issue in eastern Canada, but not as prevalent in western Canada, due to the fact that the east is more heavily populated and industrialized, so... If acid rain fell evenly across

    asked by cel
  138. Geometry

    You are given two segments, LineAB with AB = 4 and LineCD with CD = 7. Explain how you could only use the congruent-segments construction to construct LineEF with EF = 1.

    asked by NEEDS HELP
  139. Health and Career EASY

    what does not child resitant mean?

    asked by Monali
  140. C++ if else problem, please look

    It compiles but it doesn't work. can you tell me what i did wrong? //Sonny Hinh, variable program, assignment 2 #include using namespace std; int main () { char gender; int age, bmi, dose1, dose2; double dose3, dose4; dose1 = bmi * 2; dose2 = bmi * 2 + 13;

    asked by sonnytsn
  141. diameter

    if the sum of the diameters of two circles is 28 inches one circle has a diameter that is 8 inches longer than the diameter of the other what are the diameters of the two circles

    asked by seth
  142. Physics - electric potential

    an infinite plane of charge has a charge unit area of 2.6 uC/m^2. What is the change in the electric potential between points that are 2.5 and 4.5 from the plane

    asked by J Velji
  143. 4th grade

    nick's diner advertise fresh squeezed orange juice every day of the year. he serves twenty-four 8-ounce glasses of juice a day. nick knows it takes three 6-ounce oranges to make one 8-ounce glass of juice. nick orders oranges by cases that have 24 oranges

    asked by dk
  144. Biology

    10. In some cats the gene for tail length shows incomplete dominance. Cats with long tails and cats with no tails are homozygous for their respective alleles. Cats with one long tail allele and one no tail allele have short tails. For each of the following

    asked by Tiara
  145. ela

    we are reading catching fire. we have a mini project to do. there are 17 questions and i couldn't find 4. so my questions are : 1. what is healing capacity of salt water? 2. why does salt water have those positive effects on us? 3. what is saline solution

    asked by shweta
  146. science

    an astronaut in space vehicle traveling from earth to the moon is in potential danger of being harmed by the sun's ultraviolet radiation.

    asked by cynthia
  147. Math

    Use the Factor Theorem to determine whether x-3 is a factor of P(x)=2x^3-5x^-9 . Specifically, evaluate P at the proper value, and then determine whether x-3 is a factor. P(_)=__ also pick which one applies x-3 is not a factor of P(x) x-3 is a factor of

    asked by Joe
  148. math- check me

    Find the slope of the line graphed below. Points are (-4,-1) and (4,3) Is the slope 4/8 ?

    asked by Joe
  149. Math

    x - 7 = 2x - 6 does x= -1?

    asked by TheMathDude
  150. Pre-Algebra

    If 4 liters of motor oil cost $3.88, what is the price for 1 liter? I'm supposed yo set up proportions. This is how I set it up: $3.88/4 liters • 1 liter/p p= the price for 1 liter Please tell me if I set it up right and how to solve.

    asked by Joel
  151. English

    Thank you very much. I forgot to include these other sentences on the same theme. 1) Back to England he suffered from bronchitis and pneumonia. 2)When the Second World War broke out he moved to London where he joined the BBC. 3) He broadcast cultural and

    asked by Franco
  152. linear algebra

    show that if L is any line through the origin in R3 and x is any vector with its initial point at the origin, then the reflection of x through the line l(acting as a mirror) is equal to 2(projection of x onto r)-x I don't know how to set this up.

    asked by jack
  153. Social Studies EASY

    If its 7:30 pm in canada then what time is it in india?

    asked by Monali
  154. Math

    find the mode of the following numbers. 13,45,34,23,12,34,23,12,56,24,12,34,34

    asked by Nicole
  155. geometry

    volume of a rectangular pyramid if the height is 13 and the base sides are 12 and 15

    asked by lucila
  156. ESSAY NEED HELP PLEASE

    thesis satement why abortion should be illegal

    asked by girly ggsk
  157. math

    What Do You Call Drilling 4,876 Holes?

    asked by bella
  158. math

    the answer to this worksheet!!:what do you call drilling 4,876 holes?please answer now !!!!!

    asked by bella
  159. math

    Let g(x)=2x-7 and h(x)=x+4/3. Perform the indicated operation and state the domain.

    asked by Amanda
  160. mat

    Write an equation about the difference in ages between these two children. Ann is 13. Lisa is 9 ?

    asked by Anonymous
  161. arithmetic

    What is the area of the irregular shape of a cone if the radius is 7in and the height is 22in?

    asked by Abigail
  162. math

    Is the product of 6 x 2 x 4 less than 50? Explain.

    asked by mick
  163. science-due tommorow

    we are reading catching fire. we have a mini project to do. there are 17 questions and i couldn't find 4. so my questions are : 1. what is healing capacity of salt water? 2. why does salt water have those positive effects on us? 3. what is saline solution

    asked by shweta
  164. Fine Arts

    2. Miniature painting continued into the Romanesque period. These paintings were found a. on the top of columns b. in churches c. in religious manuscripts d. monasteries 4. Which of the following artists used small flat planes of colors to compose a look

    asked by mysterychicken
  165. mat

    equations

    asked by Anonymous
  166. math

    1 2 4 42 1882

    asked by beth
  167. statistics

    : A researcher theorized that people can hear better when they have just eaten a large meal. Six individuals were randomly assigned to eat either a large meal or a small meal. After eating the meal, their hearing was tested. The hearing ability scores

    asked by Anonymous
  168. chemistry

    An unknown metal is found to have a density of 19.300 g/cm^3 and to crystallize in a body-centered cubic lattice. The edge of the unit cell is found to be 0.31627 nm. Calculate the atomic mass of the metal. Im not sure how to approach this problem...when i

    asked by sam
  169. math

    shaniquya went to the carnival with her friends. the total cost in dollars, c, of attending the carnival is given by the equation: 5(t-10)-2t=c

    asked by karn
  170. social studies

    How did the outcome of the meeting at Vincennes between Harrison & Tecumseh affect future events?

    asked by austin
  171. math

    a boy travels 20 km north, then 15 km south, how far is he from where he started?

    asked by Trevor
  172. Physics - electric potential

    Consider a solid sphere of radius R = 0.52 m that is uniformly charged with ρ = -2.8 µC/m3. What is the electric potential a distance 2.6 m from the center of the sphere?

    asked by J Velji
  173. math

    shaniquya went to the carnival with her friends. the total cost in dollars, c, of attending the carnival is given by the equation: 5(t-10)-2t=c where t represents the number of tickets purchased. A. if the cost, c, is $10, how many tickets did she

    asked by karon
  174. Physics

    A positive charge +q is located to the left of a negative charge -q. On a lne passing through the two charges there are two places where the total potential is zero. The first place is between the charges and is 3.8 cm to the left of the negative charge.

    asked by Sam
  175. chemestry

    an oilo slick 110 nm 1.0 * 10^6 square meters of ocean.How many liters of oil are in the slick

    asked by tom
  176. Algebra

    A loan of $37,000 is made at 3%interest, compounded annually. After how many years will the amount due reach $49,000 or more? (Use the calculator provided if necessary.) Write the answer as a whole number.

    asked by Jen
  177. business math

    What is the total amount of tax due on a property with an assessd value of $315,200? The propery tax rate is 53.7 mills

    asked by alisha
  178. algebra

    1.)Twice a number is 28

    asked by Eve
  179. algebra

    1.)Twice a number is 28

    asked by Eve
  180. english

    How can i use rubbed in a sentence using a question mark?

    asked by india
  181. physics

    If an armadillo can leap to 0.5m height, how fast must he be moving vertically when his feet just lift off the pavement?

    asked by thomas taylor
  182. physics

    If a car moving at 76.0 mph takes 500 ft to stop with uniform acceleration after its brakes are applied, how far will it take to stop under the same conditions if its initial velocity is 38.0 mph?.

    asked by MEL B
  183. Math

    how do you convert 0.625 into a fraction

    asked by Jason
  184. Math

    1/2(4d - 2) = d + 5

    asked by TheMathDude
  185. Chemistry

    Calculate the joules of energy involved when 11 grams of water at 10.0 degrees Celsius cools and then freezes at 0.0 degrees Celsius. How many kilocalories are required to raise the temperature of 305 gtams silver from 30 degrees Celsius to 70 degrees

    asked by Palak
  186. Math

    Add fractions and mixed numbers with like denominators example 7+1 10+10 = hOW DO I WORK THIS

    asked by Amari
  187. chem

    Global warming refers to the rise in average global temperature due to the increased concentration of certain gases, called greenhouse gases, in our atmosphere. Earth¡¯s oceans, because of their high heat capacity, can absorb heat and therefore act to

    asked by marie
  188. chem

    A NASA satellite showed that in 2003 the ozone hole was much larger than it was in 2002. The 2003 hole measured 1.04 x ¡¼10¡½^7 ¡¼mi¡½^2 in diameter, while the diameter of the 2002 hole was 6.9 x ¡¼10¡½^6 ¡¼mi¡½^2 Calculate the difference

    asked by marie
  189. English

    Thank you very much. I forgot to include the following these sentences. 1)The Spanish Civil War took place between July 1936 and April 1939 between the fascist rebels (known as Nacionales), the republican government and its supporters. 2) The Republicans

    asked by Franco
  190. ap chem

    1)determine the molality for an antifreeze solutions. Kf for water is 1.86 C/m in the experiment we found the freezing point of the antifreeze it was 1.2 C 2) Determine the molar mass. 5.00g of antifreeze/50g of water 3)calculate percent error.

    asked by kelly
  191. Biology

    In each set up the dialysis tubing contains a solution of 30% glucose and safranin. However, the set ups differ in the contents of the beaker. The control set up has the same solution in the beaker while in the experimental set up it contains just water.

    asked by Jason
  192. Math

    7a - 4 + 2a= 3a - 2 I tired it and couldn't come out with a answer that fit when I checked it

    asked by TheMathDude
  193. Chemistry

    What mass of hydrogen peroxide must decompose to produce 0.77 grams of water(H2O)?

    asked by Anonymous
  194. algebra

    a rectangular sheet of plywood is seven times longer than its width,write an simlify an expression for the perimeter of the rectangle in terms of the width.

    asked by jack
  195. Chemistry

    72.0 ml of a 1.50 M solution is diluted to a volume of 288 mL. A 144 mL portion of that solution is diluted using 185 mL of water. What is the final concentration?

    asked by Anonymous
  196. English

    These sentences are part of the same work. Thank you. 1)George Orwell along with Ernest Hemingway were among the more famous foreigners participating in the efforts against the fascists. 2. Many Spanish intellectuals and artists either were (either) killed

    asked by Franco
  197. geometry

    Corresponding sides of 2 triangles are 6 & 15; if the perimeter of the smaller triangle is 22, what is the perimeter of the larger triangle?

    asked by B.J.
  198. science-due tommorow please help!!!!!!!!!!

    we are reading catching fire. we have a mini project to do. there are 17 questions and i couldn't find 4. so my questions are : 1. what is healing capacity of salt water? 2. why does salt water have those positive effects on us? 3. what is saline solution

    asked by shweta
  199. ap chem

    how would each error affect the molar mass of antifreeze ( too high, too low, no effect. a) the thermometer used actually read 1.4 too high b) after measuring the 50 of distilled water to make an antifreeze solution you spilled some. c)you lost some of you

    asked by tori
  200. Math

    A loan of $37,000 is made at 3%interest, compounded annually. After how many years will the amount due reach $49,000 or more? (Use the calculator provided if necessary.) Write the answer as a whole number. ****I get 1.03^10 = 49,724.91 So is the answer 10

    asked by Jen
  201. Algebra 2

    a chemistry lab assistant wants to prepare 10 liters of 48% acid solution. in stock he has 80% and 40% acid solutions. how many liters of each in stock solution should he mix to prepare a 10-liter mixture?

    asked by Jennifer
  202. Math

    x+3=0 how do you graph that? y= -1 how would you graph that?

    asked by Jo
  203. ap chem

    find a rate constant of rate= (x)^2(y) calculate rate for exp. 4 determine rate for exp 3 in terms of Delta X/ Delta T information exp x y rate 1 .20M .10M .048 MS^-1 2 .40M .10M .19 Ms^-1 3 .40m .20M .38 Ms^-1 4 .60M .60M ?

    asked by tori
  204. Calculus

    find the limit of lim 7= as x approaches 8

    asked by Matt
  205. Math

    A jet leaves an airport traveling at a steady rate of 600 km/h. Another jet leaves the same airport 3/4 hr later taveling at 800 km/$ in the same direction. How long will it take the second jet to overtake the first.

    asked by Jenny
  206. Algebra

    The polynomial function f is defined by f(x)x^4-3x^3-2x^2+4x+5. Use a graphing calculator to find all the points (x,f(x)) where there is a local maximum. Round to the nearest hundredth.

    asked by Rachal
  207. Social St.!!!ASAP!!!!

    If I am writing an essay what should I include for my paragraphs the essay question is: "What problems did the farmers experience while creating U.S. Constitution?" Intro....= what can I write? Body.....= what can I write? Conclusion....= what can I write?

    asked by Sumaiya
  208. Social Studies

    How did events at Chickamauga and Chattanooga affect Georgians?

    asked by Rachel
  209. social studies

    what is the other name for machu picchu?

    asked by kahlitah
  210. To Rachel

    I'm sorry to take so long to get back. All of the C atoms are sp2 hybridized. There are no sp3 hybridized C atoms Here is a link to that post on Sunday. http://www.jiskha.com/display.cgi?id=1295798102

    asked by DrBob222
  211. social studies

    what animal did the incas use for transportation?

    asked by kahlitah
  212. english

    Where does this semicolon go... All states have flags some are quite beautiful.

    asked by Alexis
  213. math

    Working on exploring algebra: Whats the Rule I understand the rules of In and out but cannot find rule with variable? Do I make up my own because the in and out equations are all correct. Please help. Ex. In 2 out 6 rule is add 4 what is rule with

    asked by claire
  214. physics

    How long does it take a plane, traveling at a constant speed of 160 m/s, to fly once around a circle whose radius is 3450 m?

    asked by lucey
  215. Human service

    Who developed the behavioral learning theory and explain the theory? Did John Watson, Ivan Pavlov and B.F. Skinner develop the behavioral learning theory? Also where can I found a explanation on this theory? Thank you

    asked by patiance
  216. Public Finance

    A worker lives in a state that has its own income tax. The worker is in the 31 percent federal tax bracket. In addition, he is subject to a 9 percent MTR for his state income tax. Assume that mortgage interest is deductible both on his federal and state

    asked by Melvin
  217. Chemistry

    If 0.630 grams of HNO3 (molecular weight 63.0) are placed in 1 liter of distilled water at 25 degrees C, what will be the pH of the solution? (Assume that the volume of the solution is unchanged by the addition of the HNO3.) A. 0.01 B. 0.1 C. 1 D. 2 E. 3

    asked by Sharon
  218. Math

    A model car is made to a scale of 2 to 25. If the model is 17 inches long, how long is the actual car?

    asked by Mark
  219. Chemistry

    The decomposition of IBr(g)into I2 (g) and Br2 (g) is first order in IBr with k = 0.00255/sec. (a)Starting with [IBr] = 1.50M, what will [IBr] become after 2.50 minutes? (b)How long, in minutes, will it take for [IBr] to go from 0.500M to 0.100M? (c)What

    asked by David
  220. Math

    4(8 - y) = 2y + 16

    asked by TheMathDude
  221. Math (Calculus AB)

    For x≠0, the slope of the tangent to y=xcosx equals zero whenever: (a) tanx=-x (b) tanx=1/x (c) sinx=x (d) cosx=x Please help. I have a final tomorrow and I am working diligently to understand every type of problem that may show up on my test. Thank you

    asked by Jake
  222. algebra

    3(4x+6)+7x

    asked by Cindy
  223. Math (Calculus AB)

    For x≠0, the slope of the tangent to y=xcosx equals zero whenever: (a) tanx=-x (b) tanx=1/x (c) sinx=x (d) cosx=x Please help. I have a final tomorrow and I am working diligently to understand every type of problem that may show up on my test. Thank you

    asked by Jake
  224. math

    the length of this rectangle is 3 cm greater than its width ,as represented in this figure below . the total perimeter is greater than 24 cm. rectangle under bottom* __________ __________ w+3 A. write the inequality that could be solved to find w,the width

    asked by karon
  225. Chemistry

    I understand how to balance equations when the full equations are given to me but I don't understand how to write a single replacement reaction. Help Me??

    asked by Jessica
  226. Calculus

    Integrate the following: sin^3 x/cosx Have attempted numerous ways but can't get anything sensible to come out of it.

    asked by Rachel
  227. math

    A.use the distributive property to write an expression that is equivalent -3(x + - 8) if the coefficient of the variable is increased by 10, what would the new expression be after you apply the distributive property?

    asked by karon
  228. math

    rockfish is on sale for $3.29 a pound. how much a piece that weighs 0.75 pound cost?

    asked by karon
  229. chemistry

    calculate the mass carbon monoxide, CO, that was needed to produce 78g of methanol, CH3OH, by the following reaction: 2H2 + CO - CH3OH.

    asked by lisa
  230. math

    write the expression that can be used to find the area of a polygon made of triangles with an area of n square units each

    asked by ronald
  231. Math

    If the slope of line f is 2,and a line d is parallel to the line f, what is the slope of line d?

    asked by mark
  232. calculus

    if f x is the slope of a trail at a distance of x miles from the start of the trail what does the definite integral of (f)xdx when x=3 to x=5 represent

    asked by Jasmine
  233. chemistry - grade 9

    calculate the mass carbon monoxide, CO, that was needed to produce 78g of methanol, CH3OH, by the following reaction: 2H2 + CO -> CH3OH.

    asked by lisa
  234. Math

    If the slope of line f is 2, and a line d is perpendicular to the line f, what is the slope of line d?

    asked by ken
  235. Intro to Chemistry

    If you are looking at C6H5NO2- which source of nicotinic acid- is best used in a vitamin?

    asked by Anonymous
  236. math

    The total cost of for 24 students'admission to a museum was $92.40. What was the cost per student?

    asked by karon
  237. Chemistry

    A 10.0 L tank holds helium gas at 82 C and 1.70 atm. What mass of helium gas is in the tank?

    asked by Hunter
  238. chemistry

    i need help with chemistry homework

    asked by Alianna
  239. English

    1.Suddenly, the door (burst) open. 2.We have (drive) on Oklahoma's Indian Nation Turnpike. 3.The water in the birdbath has (freeze) again. 4.The Highland School Band has always (wear) Scottish kilts. 5.Noriko (know) the way to Lynn's house. I have to write

    asked by Hayden
  240. Chemistry

    A 10.0 L tank holds helium gas at 82 C and 1.70 atm. What mass of helium gas is in the tank?

    asked by Hunter
  241. Chemistry

    A 10.0 L tank holds helium gas at 82 C and 1.70 atm. What mass of helium gas is in the tank?

    asked by Hunter
  242. math

    A.use the distributive property to write an expression that is equivalent -3(x + - 8)

    asked by karon
  243. Chemistry

    what is the molecular weight (G/mol) of a diprotic acid 0.43 sample that needed 35.46 ml of 0.100 M of NaOH solution to reach a phenolphthalein point?

    asked by Judy
  244. business

    All of the following except ____ are elements of quality of life. clean environment, safety, free time and health care are elements which contribute to our:

    asked by Anonymous
  245. Chemistry

    A 10.0 L tank holds helium gas at 82 C and 1.70 atm. What mass of helium gas is in the tank?

    asked by Hunter
  246. geometry

    why is the orthocenter of a right triangle on the vertex that is a right angle?

    asked by Alaska
  247. science

    the water in container a is 80 degrees c and the water in container b is 5 degrees c the water in container a has??

    asked by aizlyn
  248. Calculus

    solve [1-cos(7pi/4)]/2

    asked by Annonymous
  249. English

    Determine whether the statement represents a progressive view or a traditional view of literature. 1.There is no such thing as classic literature. 2.Literature can only be understood in the context of history. 3.Harry Potter books are not literature.

    asked by Ron
  250. english

    Which of these is true of the novel form when it was first introduced? 1.Its status as an art form was questioned. 2.It appealed to the highly educated. 3.It was nonfiction rather than fiction. 4.It satirized the working class. i think its 2? am i right?

    asked by Ron
  251. English

    Can someone help me with this sentence. There was an increase in wealth when the people died, leaving them with money, therefore CREATING a middle class Does the capitalized word go with the sentence?

    asked by Anonymous
  252. Chemistry

    Why was Wohler's synthesis of urea significant to the field of carbon chemistry? Please help. Thank you.

    asked by John
  253. geometry

    why is the centroid always inside the triangle?

    asked by Alaska
  254. math

    In a motorcycle race, one lap of the course is 650 m. At the start of the race, John sets off 4 seconds after Tom does, but John drives his motorcycle 5m/s faster and finishes the lap 2.5 seconds sooner than Tom does. What is the speed at which each of

    asked by Taylor
  255. The Pigman

    In the book the pigman who said "Actually i hate school, but then again most of the time i hate everything."

    asked by Anoymous
  256. math

    if w = 12.34, what is the value of the expression below 421.9 + 6w

    asked by karon
  257. Social studies

    What are the names of the nations in central america?

    asked by Alyssa
  258. math

    In a motorcycle race, one lap of the course is 650 m. At the start of the race, John sets off 4 seconds after Tom does, but John drives his motorcycle 5m/s faster and finishes the lap 2.5 seconds sooner than Tom does. What is the speed at which each of

    asked by Taylor
  259. College Chemistry

    A 32.85-{\rm g} sample of a solid is placed in a flask. Toluene, in which the solid is insoluble, is added to the flask so that the total volume of solid and liquid together is 46.00 mL. The solid and toluene together weigh 58.56 g. The density of toluene

    asked by Nicole
  260. Algbra

    1/4x - 5/12x = x - 4/3 Please show steps and answer. Thanks.

    asked by Zach
  261. math

    what is the area of a triangle if it has a base of 6in and a height of 3in ?

    asked by karon
  262. Friendship(Shakespeare)

    I'm trying to write a few sentences about what I believe friendship is. I really love Shakespeare's literature, and want to write the sentences like his. Friendship sy ne expressed fram the mind, but the soul. It is se abounding consanguinity which one

    asked by Maddy
  263. Algebra 1

    A line has slope 4/3.Through which two points could this line pass?

    asked by Ian Thomas
  264. Algebra 1

    Find the intercept and then use them to graph the equation 1.4x-13y=3.64. I just can't seem to find the intercept or to even solve the equation. Please help! Thank you so much.

    asked by Esther
  265. physical science

    The density of copper is 8.92 g/cm cubed. if you plotted the mass of copper in grams verses the volume in cubic cm what would the slop of the line be?.

    asked by misti
  266. Spanish

    Can someone tell me about The Mexican President's Home? Describe the building and give me some websites where I can research myself?

    asked by NEEDS HELP!!
  267. efdtef

    what conclusion based on the effectof temp on seedling growth can be drawn from this chart

    asked by yasmin
  268. Synonyms

    Hey, Im doing a short essay and my teacher wants me to use high level words, so not simple ones. Is there a good site which I can translate my simple words to those high level ones. I know that I can go search in a dictionary, but are there any other

    asked by Destiny
  269. math

    in 5 years art will be twice as old as ben. 5 years ago art was 3 times as old as ben. How old are they?

    asked by Emily
  270. Pre algebra

    A Car travels at 44 feet Per second. What is this speed in miles Per. Hour

    asked by Johan
  271. human service

    I have to Describe human development and the factors that have stimulated research in this area. I am not sure where to begin. Does this mean I need to explain all the different theories of human development?

    asked by patiance
  272. Math

    Write an equation that is parallel to y=1/4-7 and goes through the point (4,-5)

    asked by Felicia
  273. math

    Convert the base-ten number to a numeral in the indicated base. 40 to base two

    asked by Ana
  274. physics

    Problem: Two blocks of metals have the same mass. The first block has a volume of 827 cm^3 and a density of 4.50g/cm^3.Thesecond block has a volume of 193cm^3. What is the density of thesecond block ? Solution: (1) 4.50x827=3720 (2)3720/193=19.3 1. Give an

    asked by andrea
  275. poetry

    i have to write a poem about a food and i chose mac and cheese, it has to have 4 lines with end rhymes and i have the first three lines, can you please help me finish off the last one line. this what i have so far... 1.delicious taste of mac and cheese

    asked by alanaR.
  276. Chemistry

    How much energy (in kilojoules) is released when 12.8 g of steam at 130.0 C is condensed to give liquid water at 73.5 C? The heat of vaporization of liquid water is 40.67 kJ/mol, and the molar heat capacity is 75.3 J/(K*Mol)for the liquid and 33.6

    asked by Kevin
  277. math

    the perimeter of a rectangular floor mat is 42 inches, if the width is 9 inches, what is the length?

    asked by sha
  278. chem/math

    How much heat would be required to warm Earth¡¯s oceans by 1.0 ¡ãC? Assume that the volume of Earth¡¯s oceans is 137 x ¡¼10¡½^7 ¡¼km¡½^3 and that the density of sea water is 1.03 g/cm3. Also assume that the heat capacity of seawater is the

    asked by marie
  279. Pre algebra

    Solve the porportion w/7 is equal to 36/42

    asked by Johan
  280. English 9

    Hey, I made a thesis for my essay, but is it any good? Make any fixes to it if possible. Thanks! :) In general, parents often provide emotional support for their children, and also will have to accept aspects and interests of their children. In the works,

    asked by Jadon
  281. physics

    A point charge of -7.9 microcoulomb is at the origin. What is the electric potential at (3.0, - 3.0)?

    asked by Cassie
  282. math

    cx+7 if x2 determine any values of c which make f continuous for all real numbers (c=6) determine any values of c which make f differentiable for all real numbers ???

    asked by alberto
  283. Math

    The point (-1, -1) is in quadrant IV. How to determine if this is true or false?

    asked by rosie
  284. Math

    If line g passes through point (2, 2) and is perpendicular to the line h, then what is the equation of line g?

    asked by Ant
  285. Math

    If line f is parallel to the line h, and line f has y-intercept 5, what is the equation of line f ?

    asked by rolando
  286. math

    calculate the mass in kilograms of a small piece of a neutron star the size of a spherical pebble with a radius of 0.10 mm. 0.10 mm=0.010cm V=(4/3)(0.010cm)^3= M= ( i got this far now I am lost please help

    asked by marie
  287. alegebra

    the product of 5 and -4 and 6

    asked by stu
  288. Chemistry

    How do you determine if a compound is ionic, acid, or covalent ? I.E. silicon dioxide

    asked by Haden
  289. physics

    A point charge with charge q1 is held stationary at the origin. A second point charge with charge moves from the point (x1,0) to the point (x2,y2). How much work is done by the electrostatic force on the moving point charge? Express your answer in joules.

    asked by Cassie
  290. chemistry

    The pH of a solution is 6.0. Explain how the addition of the following substance would alter (or not alter) the pH of the solution. a. HCl b. NaOH c. H20

    asked by steven
  291. Algebra

    Graph the equation using the slope and the y-intercept y=7/6x+2. Thank you for your help.

    asked by Anonymous
  292. math

    how much heat would be required to warm Earths ocean by 1.0 degrees C assuming that the volume is 137*10^7 km ^3 and the density of sea water is 1.03 g/cm 3. also assume that the heat capacity of seawater is the same as that of water

    asked by marie
  293. latin

    how would you translation BElimicus, !@#$%^& De testanmento Audivisset, adeo attonitus erat ut ninil respondere posset, salvius autem haec addidit ridens.

    asked by Anonymous
  294. Math (Calculus AB)

    An equation to the graph of y=x^3+3x^2+2 at its point of inflection is: a) y=-3x+1 b)y=-3x-7 c)y=x+5 d)y=3x+1 e)y=3x+7 Please help. I am in urgent need.

    asked by Jake
  295. Math (Calculus AB)

    If y=cos^2x-sin^2x, then y'= a) -1 b) 0 c) -2(cosx+sinx) d) 2(cosx+sinx) e) -4(cosx)(sinx) I thought the answer was C but the answer key says it is E. Please help. Thanks in advance.

    asked by Jake
  296. CP Geometry

    What do you call it when the nurse gives you a shot you hardly feel? s.r. = square root s.r.5 * s.r. 15. my choices are 5s.r.3, 20s.r.5, 4s.r.10, 3s.r.2, 3s.r.10, 2s.r.6, 9, 5s.r.6, 10s.r.3.

    asked by Amber
  297. math

    A NASA satellite showed that in 2003 the ozone hole was much larger than it was in 2002. The 2003 hole measured 1.04 x ¡¼10¡½^7 ¡¼mi¡½^2 in diameter, while the diameter of the 2002 hole was 6.9 x ¡¼10¡½^6 ¡¼mi¡½^2 Calculate the difference

    asked by katie h
  298. algebra

    x=2/3y+6 put in point-slope form

    asked by stu
  299. physics

    Problem: A sample of liquid has amass of 1.04 kg and a volume of 1300 ml. If the mass of the sampleis to be increased by 70 g by adding more of the same kind kind ofliquid, what volume of liquid must be added? Solution given: 1) 1040/1300=.80 2) 70/.80=88

    asked by andrea
  300. fractions

    How do you do fractional parts of a number?

    asked by jayjay
  301. Alliedhealth

    A woman is brought into an emergency room after a severe automobile accident. She’s unconscious and badly injured. Her husband arrives at the emergency room at the same time as she arrives in the ambulance. The doctor explains the wife’s condition to

    asked by Melinda
  302. calculus

    what is the value of y in the equation (y/(2y-x))=0.5

    asked by sebastian
  303. math

    I just need a little help I got this far and got stuck again. 0.10 mm=0.010cm V= (4/3) (0.010cm) ^3= 1.3333x10^-06 M= (1.3333*10^-06cm^3)*(4.0*10^14g/cm ^3) =

    asked by marie
  304. chemistry

    If you had 5 grams of Na and 5 grams of Br, which would have more atoms

    asked by Al
  305. chemistry

    If you had 5 grams of Na and 5 grams of Br, which would have more atoms

    asked by Al
  306. dr bob

    how much heat would be required to warm Earths ocean by 1.0 degrees C assuming that the volume is 137*10^7 km ^3 and the density of sea water is 1.03 g/cm 3. also assume that the heat capacity of seawater is the same as that of water

    asked by marie
  307. math chem

    Global warming refers to the rise in average global temperature due to the increased concentration of certain gases, called greenhouse gases, in our atmosphere. Earth¡¯s oceans, because of their high heat capacity, can absorb heat and therefore act to

    asked by Anonymous
  308. comm 155

    • Read two of the five paragraphs on the second page of this appendix. Write a brief paragraph of about 150 words in which you do the following: o Identify which paragraph was more effective and analyze why this is so. o Include a discussion of sentence

    asked by Darlene
  309. fraction

    find t he fractional part of each number 2/3 of 9 and 1/6 of 12

    asked by jayjay
  310. social studies

    describe life on a seigneury on the St. Lawrnce River, during the Iroquois wars.

    asked by alanna
  311. math

    How much limestone (CaCO3) in kilograms would be required to completely neutralize a lake with a volume of 5.2 x 10^7 -L lake containing 5.0 x 10-3g of H2SO4 per liter?

    asked by Anonymous
  312. math

    6 men have 6 bags each, each one has 6 cats and they had 6 kittens how many legs in all

    asked by love
  313. Chemistry

    The decomposition of IBr(g)into I2 (g) and Br2 (g) is first order in IBr with k = 0.00255/sec. (a)Starting with [IBr] = 1.50M, what will [IBr] become after 2.50 minutes? (b)How long, in minutes, will it take for [IBr] to go from 0.500M to 0.100M? (c)What

    asked by David