Questions Asked on
May 3, 2011

  1. Physics

    Two forces are applied to a car in an effort to move it, as shown in the following figure, where F1 = 402 N and F2 = 364 N. (Assume up and to the right as positive directions.)(F1 is 10degrees and F2 is 30degrees) (a) What is the resultant of these two

    asked by Dani
  2. chemistry

    In the reaction 2SO2 (g) + O2 (g) 2SO3 (g), which change would cause the greatest increase in the concentration of SO3?

    asked by rachel
  3. math

    a fire fighter's 36 foot ladder leans against a building. the top of the ladder touches the buliding 28 ft above the ground. what is the measure of the angle of the ladder forms with the ground?

    asked by Alberto
  4. Biology

    Which term describes an organism's ability to maintain a stable internal environment? (1) reproduction (2) extinction (3) locomotion (4) regulation

    asked by Keira
  5. PreCalc - Vectors

    An airplane is flying with an airspeed of 660 Kilometers per hour. The wind is blowing from 345 degrees at 35 km/h. What direction should the airplane take so that, with the wind, the plane will be flying in a direction of 72 degrees? I can compute

    asked by Joe
  6. Physics

    An outfielder throws a 0.150 kg baseball at a speed of 26.0 m/s and an initial angle of 30.0°. What is the kinetic energy of the ball at the highest point of its motion?

    asked by Dani
  7. physics

    Calculate the force, required of the "deltoid" muscle to hold up the outstretched arm shown in the figure . The total mass of the arm is 2.9 kg.

    asked by Cara
  8. careers- school ties discussion questions

    What was Dillon's fundamental problem in the move ''School Ties''

    asked by ted
  9. trig confused.. pls help

    A group of mountain climbers are using trigonometry to find the height of a mountain located in the Rockies. From point A, which is due west of the mountain, the angle of elevation to the top is 56 degrees. From point B, which is due east of the mountain,

    asked by Mhy
  10. Physics

    An electric motor rotating a workshop grinding wheel at a rate of 95 rev/min is switched off. Assume the wheel has a constant negative angular acceleration of magnitude 2.40 rad/s2. (a) How long does it take for the grinding wheel to stop? (b) Through how

    asked by Dani
  11. Physics

    A 7.80-g bullet moving at 530 m/s penetrates a tree trunk to a depth of 6.2 cm. (a) Use work and energy considerations to find the average frictional force that stops the bullet. (b) Assuming the friction force is constant, determine how much time elapses

    asked by Dani
  12. Physics

    A ski jumper starts from rest 51.0 m above the ground on a frictionless track and flies off the track at an angle of 45.0° above the horizontal and at a height of 12.0 m above the ground. Neglect air resistance. (a) What is her speed when she leaves the

    asked by Dani
  13. Chemestry

    The covalent compounds ethyl alcohol and dimethyl ether have the formula C2H6O. However, the alcohol melts at -117.3 degrees C and boils at 78.5 degrees C the ether melts at -138.5 degrees C and boils at -23.7 degrees C. How could differences in forces

    asked by Agustin
  14. science

    2Al+3H2SO4--> Al2(SO4)3+3H2 a.)determine the oxidation number of each element in both the reaction and products of this oxidation-reduction reaction of aluminum and sulfuric acid. b.) what element is oxidized in this reaction? c.) what element reduces in

    asked by michael
  15. math

    The ratio of kangaroos to koalas is9 to5. If there were 414kangaroos how many koalas were there? 5/14=x/414 14x=2070 x=147r12 correct?? if this is correct what is the proper way to write the answer or would you just write it as it is shown?

    asked by heather
  16. PHYSICS !!!!!!!!!!!!!!!!!!!!!!!!!!!!

    a wave has a frequency of 2 Hz. find its period ? please show work.....

    asked by HIMAR
  17. Chem22

    Calculate ΔG (in kJ) for the reaction: CO2(g) + CCl4(g) = 2 COCl2(g) at 25oC under the conditions: CO2 = 0.120 atm, CCl4 = 0.162 atm, and COCl2 = 0.856 atm.

    asked by Ryan
  18. chemistry

    why would a polystyrene cup be used in an exothermic reaction between HCl and NaOH instead of a beaker?

    asked by Betsie
  19. Pre-Algebra

    Bonita and Deion are using the spinners from the Making Purple game in Problem 2.1. They take turns spinning. If the colors on the two spinners make purple, Dion scores. If they do not make purple, Bonita scores. For this to be a fair game, how many points

    asked by Tari
  20. stastics

    A survey of drivers in the United States found that 15% never use a cell phone while driving. Suppose that drivers arrive at random at an auto inspection station. a. If the inspector checks 10 drivers, what is the probability that at least one driver never

    asked by level crawford
  21. physics

    Calculate the magnitudes of the gravitational forces exerted on the Moon by the Sun and by the Earth when the two forces are in direct competition, that is, when the Sun, Moon, and Earth are aligned with the Moon between the Sun and the Earth. (This

    asked by Amy
  22. physics

    a wheel starts from rest and rotates with a constant angular acceleration and reaches an angular speed of 12 rad/sec in 3 sec. find the angle through which it rotates in this time.

    asked by diann
  23. MATHS

    Evaluate with the help of Logarithms 1) 2391/3072 2.38*3.901/4.83

    asked by sam
  24. Chemistry

    How many grams of sodium azide are required to produce 31 grams of nitrogen

    asked by Nikki
  25. Physics

    A 55.0 kg ice skater is moving at 4.04 m/s when she grabs the loose end of a rope, the opposite end of which is tied to a pole. She then moves in a circle of radius 0.795 m around the pole. (a) Determine the force exerted by the horizontal rope on her

    asked by Dani
  26. geometry

    On a sunny day an office building casts a shadow that is 80 feet long. At the same time, a 5 foot person casts a 6 foot shadow. Determine the height of the office building to the nearest

    asked by gjhjhvvjh
  27. Chemistry

    What is the pH for the potassium propionate solution at the equivalence point?

    asked by Mira
  28. algebra

    a bag contains 4 red chips, 2 blue chips and 5 green chips. A chip is randomly removed from the bag, and then without replacing the first chip, a second chip is removed. What is the probability that both of the chips selected from the bag were blue?

    asked by veronica
  29. physics-momentum HELP PLEASE tesst in two days

    A student flings a 2.3g ball of putty at a 225g cart sitting on a slanted air track that is 1.5m long. The track is slanted at an angle of 25 degrees with the horizontal. If the putty is travelling at 4.2 m/s when it hits the cart, will the cart reach the

    asked by Syed
  30. business law

    Steamatic of Kansas City Inc specialized in cleaning and restoring property damaged by fire, smoke, water, or other elements. It employed Rhea as a marketing rep. His duties included soliciting customers, preparing cost estimates, supervising restoration

    asked by P
  31. how to write 2nd may 2011 in 5 letters without usi

    how to write 2nd may 2011 in 5 letters without using numbers

    asked by Anonymous
  32. Physics

    Two objects with masses of 1.00 kg and 7.00 kg are connected by a light string that passes over a frictionless pulley as in the figure below. (a) Determine the tension in the string. (b) Determine the acceleration of each object. (c) Determine the distance

    asked by Dani
  33. consumer math

    Jane lives in Middleton, where the tax rate is 2.9%. Her property is assessed at $189,000. What is her tax?

    asked by Anonymous
  34. 6 Entropy

    Using the thermodynamic data provided below, calculate the standard change in entropy when one mole of sodium nitrate is dissolved in water? S° (J/K•mol) NaNO3(s) 116.3 Na+(aq) 60.25 NO3–(aq) 146.4 Using the value you calculated, how will the

    asked by Nicole
  35. Chemistry

    What mass of NaCl can be dissolved in 7.50 X 10 (to the 2nd)grams of water at 25 degrees C?

    asked by Nick
  36. science

    The average velocity of molecules of nitrogen gas (N2) at room temperature is around 500 m/s. If you were to raise the temperature of the nitrogen gas by 50°C what is a good estimate for the speed of the molecules?

    asked by aaronia
  37. Physics

    A rifle with a weight of 30 N fires a 3.0 g bullet with a speed of 250 m/s. (a) Find the recoil speed of the rifle. (b) If a 675 N man holds the rifle firmly against his shoulder, find the recoil speed of the man and rifle. I got .245 m/s for the first one

    asked by Dani
  38. cal

    A ball is thrown directly upward from ground level with an initial velocity v(0) = 96 ft=s. Assuming that the ball’s only acceleration is that due to gravity (i.e., a(t) = ��32 ft=s2), determine the maximum height reached by the ball and

    asked by fcv
  39. math

    a 20-ounce bag of popcorn costs $2.80. if the unit price stays the same, how much does a 35-ounce bag of popcorn cost?

    asked by natalie
  40. physics

    A car tire rotates with an average angular speed of 29rad/s. In what time interval will the tire rotate 3.5 times? Answer in units of sec.

    asked by fg
  41. SCI207

    Does the world have enough resources 8 or 10 billion people to live decent, secure, happy, fulfilling lives? What do those terms mean to you? Try to imagine what they mean to others in our global village

    asked by Anonymous
  42. Physics

    For two identical satellites in circular motion around the Earth, which statement is true? a. The one in the higher orbit has more kinetic energy b. The one in the lower orbit has more total energy c. The one in the lower orbit has less total energy d.

    asked by Lola
  43. College Bio

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

    asked by Gregory
  44. geometry

    Figure ABCD is a square. Side AB measures 10x – 7. Side BC measures 2x + 52. Find the value of x.

    asked by Anonymous
  45. Physical Science

    Four balls are dropped from a platform, 20 meters high. One ball is 5k, the other is 10kg, then 20kg, and 40kg. Which ball will experience the GREATEST change in kinetic energy, from platform to ground?

    asked by MadiShiley
  46. Statistics

    This is the first question..... 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. This is the second question....For each of the following samples that were given an

    asked by Heather
  47. To mike: Spanish

    I've deleted both of your posts asking for answers to Spanish tests. Jiskha tutors do not supply answers. Period. If you'd like to post a few questions AND your ideas about the answers, we'll be glad to help you.

    asked by Ms. Sue
  48. chemistry

    what is the half reactions for C12H22O11+ 8KClO2 => 12CO2 + 11H2O + 8KCl

    asked by Laura Lyn
  49. grammar

    I have to write 1234.567 in English word form. How do I write this number?

    asked by Daniel
  50. Math

    A flagpole casts a shadow 10 ft long. If a man 6 ft tall casts a shadow 4 ft long at the sme time of day, how tall is the flagpole?

    asked by Edwqard
  51. Physics

    The astronomical unit (AU, equal to the mean radius of the Earth’s orbit) is 1.4960E11 m, and a year is 3.1557E7 s. Newton’s gravitational constant is G=6.6743E-11 m^3kg^-1s^-2. Calculate the mass of the Sun in kilograms. (Recalling or looking up the

    asked by Roberto
  52. Comm 155

    I need help finding the adverbs and adjectives in this sentence. I think I found some. Please help. As I started building up my credit, I took it slow so that I would not over-extend myself at such a young age. Not long after I got my credit going I

    asked by Bobby
  53. Math

    Perform the following multiplication. Be sure answers are reduced to lowest terms. (Enter as an improper fraction.) 2 1/2 x 1 3/8 =

    asked by Abby
  54. physics

    Find the ratio of the gravitational force on the Moon due to the Earth to the gravitational force on the Moon due to the Sun. (The mass of the Earth is 5.97 1024 kg, the mass of the Moon is 7.36 1022 kg, the mass of the Sun is 1.99 1030 kg, and the average

    asked by HELP!!!!
  55. Physics

    objects with masses of 285 kg and a 585 kg are separated by 0.420 m. (a) Find the net gravitational force exerted by these objects on a 62.0 kg object placed midway between them.

    asked by Dani
  56. Business/ideas

    I need to answer questions about Prince tennis. One of the questions is "Because sales of Prince Sports in tennis-related products depends heavily on growth of the tennis industry, what marketing activities might it use in the U.S to promote tennis

    asked by Anonymous
  57. Science (Force and motion)

    Explain how acceleration can be slowing down. Calculate the impact force of a 50 kg object travelling at 100km/hr. (Momentum = mass x velocity) Calculate the momentum of a tennis ball of 50 g moving at a velocity of 25m/s.

    asked by maria
  58. English**

    Alexander Pope's "An Essay on Criticism. Would this be considered a analogy or personification? Those RULES of old discover'd, not devis'd, Are Nature still, but Nature Methodiz'd; Nature, like Liberty, is but restrain'd By the same Laws which first

    asked by Jeanna
  59. College Chemistry

    How many grams of Al would be deposited from an aqueous solution of Al3+ with a current of 1.430A after 5hrs of deposition.

    asked by Jude
  60. Math

    WHAT IS THE SMALLEST FRACTION YOU CAN WRITE USING THE DIGITS 6, 7, AND 1

    asked by Anonymous
  61. phisic

    Treating air as an ideal gas of diatomic molecules, calculate how much heat is required to raise the temperature of the air in an 7.47 m by 14.9 m by 2.87 m room from 19.9°C to 21.7°C at 101 kPa. Neglect the change in the number of moles of air in the

    asked by please help me
  62. physics

    A 7 x 10^-3kg bullet is fired into a 2kg wooden block initially at rest on a level surface. The bullet passes through the block and emerges with the velocity of 200m/s. The block slides 0.5m and stops. If the coefficient of friction between the block and

    asked by Anonymous
  63. Math

    There a re 30 students in a math class. Twelve belong to the computer club, and eight belong to the photography club. Three belong to both clubs. How many belong to neither?

    asked by MathLuv
  64. psychology

    please can someone help me? What are the characteristics of the following anxiety disorders? ◦ Generalized Anxiety Disorder ◦ Obsessive-Compulsive Disorder ◦ Phobic Disorder ◦ Specific Phobia Disorder

    asked by Alex
  65. Chemistry

    write the complete and net ionic equation for: HCl+NaOH-->H20+NaCl HNO3+NaOH-->H20+NaNO3

    asked by Betsie
  66. science

    two balls of masses 5m and m have radii 2r and r.their center of masses are separated by 10r.they move towards each other under their gravitational force. the distance moved by the centre of smaller sphere when the sheres touch each other?

    asked by vamshi
  67. English I

    Is this a persuasive topic for an essay: Does television today brainwash children and teens? Yes or No? How? My english teacher says he gets it but it needs to be more persuasive and specific. How do I that? Can you give me some examples? Please and thank

    asked by Mike
  68. physics

    a spring stretches by 3.90 cm when a 10gm mass is hung from it. if a 25 gm mass attached to this spring oscillates in simple harmonic motion, calculate the period of the oscillation

    asked by diann
  69. History

    Hi! Are there any reputable sites where I can access visual sources? This is relevant for modern history (I need a cartoon on Stalin/Kulaks/collective farms) and Ancient History where I'm studying Akhenaton. Thanks

    asked by URGENT plz help
  70. Math

    Jake spent 3/8 of his money on a book and 1/2 of what was left on a magazine. He now has $6.25. How much money did he start with?

    asked by PLEASE HELP
  71. chem

    true or false?? a)If there are no changes in the oxidation state of the reactants or products of a particular reaction, that reaction is a redox reaction. false? b)A reducing agent gets oxidized as it reacts. true?

    asked by Rebekah
  72. chemistry

    A chunck of silver has a heat capacity of 42.81 J/°C. If the silver has a mass of 181 g, calculate the specific heat of silver.

    asked by Anonymous
  73. English

    Hello. I need some language help. 1)"He is ready to cooperate with authorities, especially with the public prosecutor." Is the second "with" a must or is it possible to do without it: "to cooperate with authorities, especially the public prosecutor"? 2)Is

    asked by Ilma
  74. Calculus

    Evaluate the integral. HINT [See Example 3.] (Remember to use ln |u| where appropriate.) (4/x - 1/4x^5 + 1/2x^7)dx

    asked by Karen
  75. Physics

    The astronomical unit (AU, equal to the mean radius of the Earth’s orbit) is 1.4960E11 m, and a year is 3.1557E7 s. Newton’s gravitational constant is G=6.6743E-11 m^3kg^-1s^-2. Calculate the mass of the Sun in kilograms. (Recalling or looking up the

    asked by Roberto
  76. math

    How much would you repay the bank if you borrowed $7,900 at 4.3% annual interest for 6 years?

    asked by Anonymous
  77. Math is this correct

    There are 30 students in math class. Twelve belong to the photography club. Three belong to both clubs. How many belong to neither club? Is it 12?

    asked by MathLuv
  78. physics

    1.A cylinder rolls without slipping on a horizontal plane and then up an incline. The linear speed of the cylinder at the beginning is v. What maximal height h will the cylinder reach? 2.Helicopter of mass M holds stationary in the air fires a missile of

    asked by Sandhya
  79. Math

    Mutliply. (9t² - t- 7)(4t²+9t-1) AND Find the product. (5a+2)³

    asked by Mimi
  80. physics

    1.Three masses, m1, m2, and m3, are lying on a plane without friction and are connected by a string. A force F is applied to the mass m1 so that the whole system accelerates along a straight line. What is the tension of the string T between the masses m1

    asked by Sandhya
  81. health

    Please help... Staying fit requires all of the following EXCEPT _______. A-a rigid fitness plan B-physical activity C-healthy habits D-healthy eating 5. True or False: To develop a personal fitness plan you should consider which exercises and sports you

    asked by mo
  82. Science

    A 7-kg brick is dragged across the floor by a horizontal force of 42 N. If a frictional force of 18 N also acts on the brick, what is its acceleration?

    asked by Anna
  83. math

    Navigation. The current in a typical Mississippi River shipping route flows at a rate of 4 mph. In order for a barge to travel 24 mi upriver and then return in a total of 5 hr, approximately how fast must the barge be able to travel in still water?Solve by

    asked by carol
  84. life orientation

    name two institution/communty organizations that surpporting or giving redress to air pollution

    asked by lesego
  85. Math

    I need the following definitions Please: point line intersecting lines parallel lines vertical lines horizontal lines acute angle obtuse angle right angle square rectangle trapezoid rhombus pentagon hexagon octagon triangle circle chord radius diameter

    asked by Erin
  86. physics

    A solid, horizontal cylinder of mass 8.0 kg and radius 1.30 m rotates with an angular speed of 5.50 rad/s about a fixed vertical axis through its center. A 0.250 kg piece of putty is dropped vertically onto the cylinder at a point 0.900 m from the center

    asked by Dani
  87. Math

    Jake spent 3/8 of his money on a book and 1/2 of what was left on a magazine. He now has $6.25. How much money did he start with?

    asked by Haley
  88. English

    1.Either Max or Neil (know, knows) the answer to that question. 2.All of us (want, wants) to see that movie next week. 3.Her aunt and uncle (own, owns) a ranch in Wyoming. 4.(Was, Were) you standing at the bus stop when the rain started? 1.knows 2.want

    asked by Hayley
  89. geometry

    how do you calculate the volume of a cylinder with two different sized bases? Radius of top base: 12cm, Radius of bottom base: 18cm, height: 8 units. How do you do this? i tried averaging them but it didn't give the correct answer... should be about 5730.3

    asked by Anonymous
  90. Physics

    A cannon is mounted on a railway flatcar, the muzzle elevated to 31.4° and pointed in the direction of the track. The cannon fires a 1.10-metric-ton projectile at 1.10 km/s. (a) If the flatcar and cannon together have a mass of 36.0 metric tons (not

    asked by Dani
  91. algebra

    ne U.S. town, the annual consumption, b, of beef (in kg per person) can be estimated by adding 20 to half the years, t, since 1975.

    asked by Anonymous
  92. science

    How does mutation contribute to variation in a species? Evolution is the theory and natural selection is the process. Explain what this might mean. How can environmental factors determine a feature in a species?

    asked by sarah
  93. Math

    Find the product. (5a+2)³

    asked by Mimi
  94. chemistry

    finish the following equations and balance them, HCN+NaOH

    asked by Digger
  95. probability

    explain the probabilty of one event in a fair game with three possible outcome

    asked by nathan
  96. math

    write the place name for the 4 in the following number 3 624 786

    asked by sonia
  97. College Chemistry

    If the voltage of the cell is -0.1288V at 25Celsius when [Pb2+]=0.1403M and the pressure of H2=1atm, what is the pH Pb(s)+2H+(aq) Pb2+(aq) +H2(g) E0 = 0.1260V

    asked by Jude
  98. chemistry

    4. Vinegar is a dilute solution of acetic acid. What is the concentration of acetic acid in the vinegar if 26.5 mL of NaOH at 0.250 M are required to neutralize 10.0 mL of vinegar?

    asked by cindy
  99. Physics

    When certain a force is applied to a 2kg standard mass, its acceleration is 5m/s^2.When the same force is applied to another object its aceleration is 2m/s^2. The mas of the objects is:

    asked by Britni
  100. science

    What mass of water, in grams, would have to be decomposed to produce 26.3 L of molecular oxygen at STP?

    asked by Erin
  101. Engish

    Need to circle the correctword in parentheses and label adjective or adverb. 1. Cats can see (good,well) in the dark. ANSWER=well,adverb 2.After the storm the pier was damaged(bad,badly). ANSWER=bad,adjective 3. I was (real,really) pleased to get your

    asked by Emily
  102. pre-algebraa

    1. Which of the following ordered pairs is a solution of 5x + 2y = -3? a. (2,-4) b. (-4,2) c. (1,-4) d. (-4,1) is the answer: C?

    asked by Cheryl
  103. speech

    Defend why you consider these to be modern styles.

    asked by Anonymous
  104. For

    What are the 3 base languages in Europe? I know there's Slavic, Romance which is Italian and French, but I can't remember the last one. Help!

    asked by Jake
  105. statistics

    Twenty (20) students randomly assigned to an experimental group are studying for a test while listening to classical music. Thirty (30) students randomly assigned to a Control group are studying for the same test in complete silence. Both groups take the

    asked by Cyn
  106. social studies

    i need an summary on The Home Front

    asked by chris
  107. Brief Calculus

    Evaluate the integral. HINT [See Example 2 and 4.] (Remember to use ln |u| where appropriate.) (1/v7 + 5/v) dv

    asked by Rachel
  108. Chemestry

    The covalent compounds ethyl alcohol and dimethyl ether have the formula C2H6O. However, the alcohol melts at -117.3 degrees C and boils at 78.5 degrees C the ether melts at -138.5 degrees C and boils at -23.7 degrees C. How could differences in forces

    asked by Agustin
  109. MATH

    peter bought a computer that cost 1,500. The computer is on sale for 15% off. Peter paid 7% sales tax on the sale price of the computer. How much did peter pay? My answer would be 1,604.25 can you explain how to do the problem if it is wrong

    asked by chris
  110. math

    Given the quadratic function f(x) = 16x^2 – 64x + 64, find a value of x such that f(x) = 16.

    asked by kozy
  111. Econ/statistics

    The monthly earnings of teachers is normally distributed with a mean of $3,000 and the standard deviation of $250. We select a sample of 87 teachers. The sampling distribution of the sample mean has an expected value and standard deviation of: a.) 3,000

    asked by Sara
  112. Math 120

    A recent study of 750 Internet userd in Europe found that 35% of Internet users were women. What is the 95% confidence interval of the true proportion of women in Europe who use the Internet? A)0.321

    asked by will
  113. Geography

    What is the time and day at a certain place X (Lat 25 deg N,Long 33 deg W) when at is 2.30 AM on Thurs Day at a place Y (Lat 25 deg S,Long 27 deg E) ?

    asked by Sumit Guha
  114. Oncology Report

    Ok, we're are supposed to do a one page annual report on oncology and I'm having trouble understanding exactly what I'm supposed to do. Our teacher gave us a sheet saying "You are asked by the CEO of a hospital to contribute to the annual report. She wants

    asked by Valerie
  115. HBC

    I worked so hard on the advertisement. Only asking for 3 more phrases, just little bit help please. Sorry if I've done bad job with it.

    asked by Anonymous
  116. algbera

    Multiply -x – 2 by -x2 + 4x – 2

    asked by kozy
  117. Chemistry

    A ship carrying ice over a lake breaks and spills its cargo.If 3650.0 g of ice at 0.00 celcius are released into the 15456200 g of water in the lake at 17.0 celcius, what will the final temperature be? (heat of fusion=79.0 cal) and i got the answer of

    asked by Kat
  118. Money and Banking

    Price of stock is 50.00 at the beginning of a year and 53.00 at the end of the year and it pays a dividend of 2.00 during the year calculate the stock's current yield,capital-gains yield,and the real return show work.

    asked by Pam
  119. Computers

    Why is the Web an important medium to publish information? Describe the ways the Web is different from other publishing media.

    asked by Crissy XD!!!
  120. math

    Amy places a set of number cards 1 through 30 in a bag. she draws out a card what is the probability that the number will have the digit 1 on it?

    asked by heather
  121. math

    A survey of Chaicago sports fans asked them 3 questions about which they prefer. Each fan must give exactly 1 answer to each question. Given a choice between the Cubs and White SOx, 40% chose cubs. Between the Bulls and Blackhawks, 57% chose bulls. between

    asked by kavi
  122. Algebra Please Help/ Check

    why does the equation x^2=-9 has no real solution? This I can't figure out. why does the equation x^2 = 9 has two solutions? Is it because it satisfied by both 3 and -3 so it has two solutions.

    asked by Wendy Q
  123. math

    multiply (-x-2)by (-x2 + 4x – 2)

    asked by kozy
  124. IPC

    i have no idea how to do this at all please explain... The specific heat capacity of copper is 0.09 cal/g°C. How much energy is needed to flow into a 10-gram sample to change its temperature from 20°C to 21°C?

    asked by Please help!!
  125. math

    what does polygon mean

    asked by hakim
  126. science

    if a person weighs 120kg on earth, how much would they weigh in space

    asked by JM
  127. English

    1. I have to pay a library fine; I must have (forgot) to return a book on time. 2. Unfortunately, she had already (throw) the map away. 3. My uncle Jack has(drive) a taxicab for over thirty year. 4. Noah had already (write) a letter to his grandfather.

    asked by Hayden
  128. geometry

    What is the diameter of the following circle: (x + 4)2 + (y – 9)2 = 18

    asked by Anonymous
  129. IPC

    okayy sooo this matching thing is wierd.. i don't understand it.. Zeroth First Second -Heat can change energy from one form to another, but the amount of energy in the universe is constant. -Two objects in thermal equilibruim will have no net heat flow

    asked by Please help!!
  130. math

    Write a mixed numeral for the answer. 17 3/5 - 14 23/27

    asked by Sadara
  131. Economics

    Q = 39,000 – 500P AVC = 30 + 0.005Q Q is quantity demanded and produced, and P is price of the product. Total fixed cost is $50,000. Assume these functions are based on monthly demand and production. A. What are the inverse demand and the MR revenue

    asked by Jim
  132. Chemistry - Help!!!

    Which of the following criteria indicate that a reaction is SPONTANEOUS? Check all that apply. a) The change in free energy is positive. b) The entropy of the universe decreases. c) The change in free energy is negative. d) The entropy of the system

    asked by Pam
  133. 8th grade math

    2x-5y=14 3x+2y=40 what is the solve of xy ?

    asked by Anonymous
  134. 8th grade math

    2x-5y=14 3x+2y=40 what is the solve of xy ?

    asked by Anonymous
  135. English

    Can you briefly chech these few sentences, please? Thank you very much. They are urgent. 1) Dorian's wish for eternal beauty and youth could be connected to Goethe's Faust. 2) The portrait returns beautiful as original (or as it originally was?) 3) I

    asked by Henry1
  136. Life orientation

    How to address the problem of floods in our country?

    asked by Princess nkosi
  137. Finance

    subject is purchasing a home for $45,00.00 with $5,000.00 down payment @ 11% interest. Will this be covered in 10 years and how much payment per month?

    asked by ingrid
  138. math

    Combine like terms. 7 3/4x - 5 1/20x

    asked by Sadara
  139. american government

    For the first eleven years of its existence, the United States was a _____.

    asked by Anonymous
  140. chem

    What is being oxidized in each of the following reactions? (a) Sr(s) + F2(g) SrF2(s) F2 SrF2 Sr .(b) H2(g) + I2(g) 2 HI(g) H2 HI I2 .(c) 2 Li(s) + Pb2+(aq) 2 Li+(aq) + Pb(s) Pb2+ Li+ Pb Li thanks:) can you give an explanation. I know a is Sr but I don't

    asked by Lilly
  141. English

    Hello. Will you please help me with the word order: 1)US forces have killed Osama bin Laden, who with his wives and sons has been living in a luxury compound in Pakistan for many years. (Is "who with" natural here; does "who together with" or "who along

    asked by Ilma
  142. math

    If a stone is tossed from the top of a 250 meter building, the height of the stone as a function of time is given by h(t) = -9.8t2 – 10t + 250, where t is in seconds, and height is in meters. After how many seconds will the stone hit the ground? Round to

    asked by carol
  143. apple

    Do you recognize the company or organization represented by the logo? If you do, where were you first introduced to this logo? Over time, has the graphic changed but still remained recognizable and associated in your mind with the company or organization?

    asked by tiffany
  144. ECONOMICS

    Q = 39,000 – 500P AVC = 30 + 0.005Q Q is quantity demanded and produced, and P is price of the product. Total fixed cost is $50,000. Assume these functions are based on monthly demand and production. A. What are the inverse demand and the MR revenue

    asked by SAM
  145. ECONOMICS

    Two price setting firms have the same price and marginal revenue functions but face different cost functions. These functions are provided below. P = 165 - 0.025Q MR = 165 - 0.05Q Firm 1: TC = 4,000 + 15Q Firm 2: TC = 3,000 + 22Q a. Assuming that both

    asked by John
  146. Math

    I really need a math dictionary... I need the following definitions Please: point line intersecting lines parallel lines vertical lines horizontal lines acute angle obtuse angle right angle square rectangle trapezoid rhombus pentagon hexagon octagon

    asked by Erin
  147. Chemistry!!!

    Calculate the density of a certain gas if its pressure is 0.725 atm, its molar mass is 48.22 g/mol, and the temperature of the has is 24.0 degrees Celsius

    asked by Amanda
  148. Computer

    Why do you think the information in the title bar of a document is important?

    asked by JoshelaT
  149. Physics

    What is the importance of the Michelson-Morley experiment?

    asked by Jack
  150. geometry

    If segment AB is a diameter, AB =10, and measure angle ABC =45, how far is segment BC from the center of circle O?

    asked by Alexandria
  151. Pictures Of HBC

    Since I am doing an Ad on the HBC. Could I get links to pictures. I don't know what to draw, anything easy please. Like a beaver, a boat, could you please give me links to items the HBC sold?

    asked by Anonymous
  152. Math

    x + 2/3x ______ = 30 2

    asked by Anonymous
  153. math

    how do i solve 4x divided by 3 +21 = 17

    asked by jared
  154. Chemistry

    I don't get this problem... 6.0 N H2SO4 = ________ M How can you solve for Molarity without mL? Thanks, much appreciated!

    asked by Adry
  155. Social studies

    Why did people long ago form communities

    asked by Summer
  156. Biology

    What ethical issues might arise when a drug company funds trials of a new drug it has developed to treat a genetic disorder?

    asked by John
  157. Geometry

    The equation of a circle is x^2 + 6x + y^2 - 2y = 15. What are the center and radius of the circle? Please show work.

    asked by Anonymous
  158. science

    Evolution is the theory and natural selection is the process. Explain what this might mean. How can environmental factors determine a feature in a species?

    asked by jason
  159. Science (Asap)

    What is the effect of a chemical change on the mass of matter?

    asked by Frances
  160. math

    Rewrite with positive exponents. Assume that even roots are of nonnegative quantities and that all denominators are nonzero.(6xy/y)^-3

    asked by kozy
  161. math

    multiply -x^2by-x^2 + 4x – 2

    asked by kozy
  162. math

    Rewrite with positive exponents. Assume that even roots are of nonnegative quantities and that all denominators are nonzero.(6xy/y)^-3

    asked by kozy
  163. english

    Because she practiced her presentation so diligently, Jamie was not the least bit nervous when she stepped onto the stage. (Points : 1) Because she had practiced her presentation so diligently, Jamie Because she had practiced her presentation, so diligent,

    asked by yvonda
  164. Calc

    How do you know what shape the graph in the xy-plane represented by x=3sin(t) and y=2cos(t) is?

    asked by Erica
  165. English

    1.The brilliant blue waters (make, makes) the area popular. 2.Either Sydney, Australia, or Budapest, Hungary (were, was) settled by the British. 3.In Bahrain (is, are) located important oil reserves. 4.(More, Most) of the world's population (is, are) in

    asked by Hayley
  166. Math

    Find the product. (5a+2)³

    asked by Mimi
  167. math-translate into words please

    10-3n translate into words

    asked by lawrence
  168. pre- algebra

    Method collected twice as much money as Lucy for a walkathon. Together they collected $120. Hoe much money did each person collect?

    asked by Noah
  169. Science

    The drawing bellow(click go to address img291.imageshack.us/i/sc017942e5.jpg/ to see picture of image) shows two students performing an experiment. Make a list of the things the students are doing incorrectly

    asked by Jack
  170. geometry

    find the area of an equilateral triangle with sides measuring 6 meters.

    asked by nick
  171. algebra

    5/x-6x=4 find a quadratic equation and find the roots?

    asked by sakina
  172. math

    Write a mixed numeral for the answer. -1 7/8 divided by 1 5/9 =

    asked by Sadara
  173. English

    Hello. Please help me with a few lexical questions. 1)Is it possible to use "spot" in the following context: "the scandal spotted his political reputation"? 2) Is it possible to say "Hosni Mubarak was a)discharged b)dismissed c) dismissed from power"

    asked by Ilma
  174. Math

    A locker combination has three nonzero digits, and digits cannot be repeated. The first two digits are 1 and 2. What is the probability that the third digit is 3?

    asked by Jess
  175. reimbursement methodologies

    you're reviewing reimbursement for medicare surgical craniotomy case. The case falls into DRG 1, which has a relative weight of 3.0970 and a geometric mean length of stay of 6.3. The hospital's current standard reimbusement rate is $1500. calculate the DRG

    asked by kim
  176. Science

    What happens to the current in a closed circuit if the potential difference is increased and the resistance remains consistent?

    asked by Niel
  177. math

    At a local community college, it costs $ 650 to enroll in a morning section of an algebra course. Suppose that the variable n stands for the number of students who enroll. Then 650n stands for this course. How much is collected if 45 students enroll? 61

    asked by Robert Wayne
  178. algebra 2

    Given an angle pheta in standard position, if P(ã3/2, -1/2) lies on the terminal side and on the unit circle, find sin pheta and cos pheta.

    asked by lindsey
  179. math

    A=29 degrees, a= 5, b=13, How many solutions are there for triangle ABC and whats the solution(s)

    asked by lindsey
  180. statistics

    The sample mean is 12 for a sample of 26. The sample deviation is 3. Use the .02 level of significance The following information is available. H0:  ≤ 10 H1:  > 10

    asked by Anonymous
  181. math

    write as mixed numbers 3.2= 5.4=

    asked by kyle
  182. algebra

    I need help understanding how to do these problems. Thanks! 1) Find the value(s) that would be left out of the range of f. If there is more than one value separate them by commas. Leave fractional answers in fraction form. If there are no values left out

    asked by alyssa
  183. chemistry

    write out the reactions that convert the chromate ion into chromium peroxide.

    asked by jen
  184. conseptual physics

    if you hold one end of a metal nail against a piece of ice, the end in your hand soon becomes cold. does cold flow from the ice to your and? why?

    asked by jessica
  185. math

    what is the product of the expression below? (2x-5)(2x-3)

    asked by natalie
  186. English

    I need to check these sentences, especially the use of sentence connectors. Can you also suggest a site to me where I can get extra exercises on how to use them in a paragraph? Thank you 1)The soldiers are presented as old and tired. The poet wonders if

    asked by Henry1
  187. history...sort of

    i am doing a research project on media scares or media rumors that have frigntened people throughout history and how society has reacted to them. I already have the y2k scare and the war of the worlds brodcast scare. I would like a couple other scares to

    asked by penny lane
  188. Pre-Algebraa

    1. Find an equation in slope-intercept form for the line passing through each pair of points: (-4,4), (-5,-3) a. y = 7x - 32 b. y = 7x + 32 c. y = -7x + 32 d. x = 7y + 32 is the answer a?

    asked by Cheryl
  189. physics

    A 3kg book is lifted to a height of 50cm above the ground (a)by how much has the book's gravitational potential energy increased?

    asked by Mudau daisy
  190. hialeah miami lakes

    given triangle PQR with vertices P(0,-8), Q(4,-9) and R(-2,-3), find the length of the midsegment connecting the midpoint of PQ to the midpoint of PR.

    asked by ivette hanon
  191. trig

    solve for exact value for x between 0 and 2 pie 3sin2(x)-cos2=2?

    asked by shery
  192. math

    Subtract. (4a3 – 7a2) – (8a3 + 1a2)

    asked by carol
  193. Integrated Physics and Chemistry

    Energy that is dissipated during heat flow cannot usually be used to produce work. True False

    asked by jessica
  194. Advertising--HBC Company

    Okay. I had a sub today, and she said that I have to make an advertisement on the HBC to attract individuals. Some examples she gave to me: -Marvellous goods! -We Want you! -Jobs available for men! Some things I came up: -All types of fur like beaver and

    asked by Anonymous
  195. life orietation

    5 ways in which the human or enviromental problem impacts on the community

    asked by lesego
  196. Math

    I invested $45,6000 at 18% to be compounded semi-annually. What will be the value of my investment in four years?

    asked by Galaxy
  197. Chemistry

    HCl (g) Hbr(g) HF(g) Which of these gases has the fastest average speed? The highest average kinetic energy? How do I determine this?

    asked by Ashlee
  198. algebra 1

    find the excluded value x+5 over 3x-2

    asked by kiesean
  199. algebra

    an advertising company made 15 million in 2002 and 22 million in 2003. in a bar graph of this data, the bar for 2002 is 3 inches high. How high should the bar for 2003 be to represent the data proportionally?

    asked by veronica
  200. math

    given a length of wire to construct a geometric figure with it, what fugure encloses the greatest area

    asked by mary
  201. Calc

    To what limit does the sequence Sn = (3+n) /3^n converge as n approaches infinity?

    asked by Erica
  202. Grammar

    I need the present tense form of the verb choose in this sentence. Fred chooses a piece of wood. Is it chooses or chose? Also in this sentence, Jim lies his jacket on the bench. Is lies or lays correct?

    asked by Kam
  203. math

    find the axis of symmetry f(x)=-2x2-12x+8find the axis of symmetry f(x)=-2x2-12x+8

    asked by jacob
  204. Statstics

    Cities A, B, C and D are equidistant. That is, B is d miles from A, C is d miles from B, and D is d miles from C. Suppose you travel 55 mph from A to B, 40 mph from B to C, and 50 Mph from C to D. What single, constant speed could you have traveled from A

    asked by Robo
  205. Math

    Find the equation of a hyperbola of the form x squared / M - y squared / N = 1 the transverse axis is 12 and the foci from the center is 16 is the answer x squared / 36 - y squared / 220 = 1

    asked by Anonymous
  206. Statistics

    A certian company enjoyed 3.5% profits in year 1 over its revenue in Year 0. In Year 2, it enjoyed 5.75% profits over Year 1. In Year 3, it posted 1.25% profits over Year 2. What single, constant profit over this period of years would have produced the

    asked by Ben
  207. english

    Two many cooks spoil the broth. (Points : 1) Two many cook To many cooks Too many cooks Two many cooks

    asked by yvonda
  208. FRENCH

    Sra, thanks so much for the help yesterday with my French. Here is the work, and I got my teacher to check it over, and she corrected some areas, so I thought to let you know. 1. Nous sommes allés à Vancouver où nous avons rencontré nos cousins. 2. À

    asked by Sydney
  209. MATH

    karen earned 12% this year 78,500 investment earn about 1,00 this year i need an equation you have to estimate is this correct 80,00 x 0.12 = 9,600

    asked by sergio
  210. compose

    Who are some famous pianists of the 21st century?

    asked by Jan
  211. managment

    “Egalitarian companies are more innovative.What do you think?

    asked by robin
  212. math

    -5/3x+2/3=-11

    asked by Sadara
  213. aglbera

    Rewrite with positive exponents. Assume that even roots are of nonnegative quantities and that all denominators are nonzero.(6xy/y)^-3

    asked by kozy
  214. science (force and motion)

    explain how accceleration can be slowing down. Calculate the impact force of a 50 kg object travelling at 100km/hr? -> i was wondering if you can answer directly and not through hyperlinks... thank you

    asked by sarah
  215. lomes

    it is a 2 digit number. its digits add up to 13. it has more tens than ones

    asked by keli
  216. Math

    Hai take 12 minutes to walk to school. He wants to get there.15 mins early to meet with his lab partner. What time shod he leave his house is school starts at 8:10 am?

    asked by Justin
  217. algebra please help!

    I need help understanding how to do these problems. Thanks! 1) Find the value(s) that would be left out of the range of f. If there is more than one value separate them by commas. Leave fractional answers in fraction form. If there are no values left out

    asked by randy
  218. science

    How does your body keep from being crushed from air pressure?

    asked by Alyssa
  219. Math

    Multiply. (9t²t-7)(4t²+9t-1)

    asked by Mimi
  220. Algebra

    x_< 2 y_>-2x+4

    asked by SC
  221. Chemistry

    Determine the number of moles in 56 g of N2

    asked by Emily
  222. Science

    Explain how gravitational force keeps planets revolving around the sun.

    asked by Kai :)
  223. statistics

    If input is 15, 24, 30 and output is 5, N, 10 - what is "N"?

    asked by Deb
  224. gr 10 french

    How would you start off the answers for these questions in french? 1)Est-ce qu'il y de la competition entre cette compagnie et un autre?qui? 2)Est-ce qu'il y des porte-paroles ou des temoinages pour ce produit?qui? 3)Quelle technique de persuasion est-ce

    asked by Rebecca
  225. Geography

    what is the leader of the canadian central government called?

    asked by Alyonka
  226. science

    how is it possible to extract tungsten from woframite?

    asked by daisuke
  227. science (Genetics and Evolution)

    What contains DNA? Where is DNA found? What is the difference between phenotype and genotype?

    asked by jason
  228. business

    What are some competitors of these companies? 1)Simple Green detergents 2)Motomaster 3)Nascar 4)Canadian Tire Jumpstart

    asked by Rebecca
  229. math

    log(x+8)-log(2)=log(2x+2) solution set

    asked by Anonymous
  230. math

    round the following number to the nearest ten: 53

    asked by sonia
  231. anthropology

    What ethnicity are known for there spherical eye orbits?

    asked by Traci
  232. algebra

    What is the Pythagorean theorem? How is it used?

    asked by chris
  233. spelling

    how can you sort the words soup, double, cougars, and enough?

    asked by nicole
  234. 4th grade math

    my question is in geometry what does 4/3 look like?

    asked by mckenzie
  235. chemistry

    why is the pH very acidic when adding water,naoh, and benzoic acid?

    asked by Alicia Scottt
  236. math

    two positive integers I larger value 32 j smaller 20 divide i by j which equal R if r not 0 then reset the value of j to the value of r when r equal 0 what the value of j?

    asked by Anonymous
  237. chemistry

    a)what is the name and molecular formula of the reagent responsible for the formation of the nickel complex ions? b)What is the color of this complexation?

    asked by kat
  238. FRENCH

    Sra here some of the other sentences: 1. Nous sommes allés à boum, et nous avons montré des bals. 2. Je suis allé à la maison de mon ami et j’ai eu Soirée pyjama. 3. Je suis rentré à la maison de mon cousin et j’ai joué des jeux. 4. Nous

    asked by Sydney
  239. math

    how would you write 2/3 as a decimal .66?

    asked by heather
  240. accounting/help please

    The two accounts used to adjust the uncollectible accounts are. A) Uncollectible Accounts Expense and Allowance for Uncollectible Accounts. B) Accounts Receivable and Uncollectible Accounts Expense. C)Accounts Receivable and Allowance for Uncollectible

    asked by mike
  241. algebra

    The area a of a triangle with base b and height h is given by A=1/2bh. Find the area when b=30m (meters) and h =30m What is the area?

    asked by bee
  242. Physical Science

    If an atom were to lose a neutron the atom's ________ would be affected.

    asked by Dewight Johnson
  243. Chemistry II

    For the cell Fe(s)©¦Fe2+(aq)¨UO2(g)©¦H+(aq), H2O(l)©¦Pt(s) Indicate a) standard cell potential; b) overall cell reaction c) number of electrons transferred

    asked by Rebecca
  244. math

    How do you convert feet to mph?

    asked by bob
  245. Math And Physics HELP

    A particle P of mass m=1 moves on the x-axis under the force field F=36/(x^3) - 9/(x^2) (x>0). Show that there is a single equilibrium position for P and that it is stable. Find the period of small oscillations about this point.

    asked by Dwayne
  246. Finance- Real Estate....really need help!!!

    A developer is interested in a parcel of land for a small mixed use development. Similar developments are worth $15 million and require the following sequential investments to complete: Phase Description 1 Purch. land, permitting, utilities 2 Build retail

    asked by Courtney
  247. physics

    how would you make a graph testing a ping pong ball and a tennis ball going down an incline and timing it

    asked by Kelli Kenyon
  248. FINANCE

    CORRECTION TO AMOUNT WITH PRIOR QUESTION:subject is purchasing a home for $45,000.00 with $5,000.00 down payment @ 11% interest. Will this be covered in 10 years and how much payment per month?

    asked by ingrid
  249. physical science

    list two safety procedures to create a supersaturated solution

    asked by matthew
  250. Statistics

    1. In thinking about doing statistical analysis, the sample mean should be interpreted as: A.)a constant value that is equal to the population mean. B.) a constant value that is approximately equal to the population mean. C.) a random variable that is

    asked by Sara
  251. Economics 210

    Information given is sample mean of 12 for a sample of 26. Sample deviation is 3. Using a .02 level of significance. H0 u< or equal to 10 and H1 u> 10 a. Is this a one or two tailed test? b. what is the decision rule? c. what is the value of the test

    asked by Daniel
  252. Chemistry

    A student places 5.77 grams of wex (a mythical substance often burned for light on other planets) in a test tube and then melts it. When the wex starts to freeze, the test tube (with the wex) is put into 237.6 g of water at 34.7oC. If the final temperature

    asked by Kat
  253. math

    Solve by factoring: 9t2 + 3t= 0 p2 + p + 4 = 0

    asked by carol
  254. algebra

    Graph inequality. y is < or equal to -x+2

    asked by Chardonnay
  255. chemistry

    I need help with this problem: if you want to reduce the strength of 100 mL of 10 N NaOH to 3N, how much water would you need to add? Thanks in advance.

    asked by John
  256. math

    How do you write the least common multiple that clears an equation of fractions?

    asked by Anonymous
  257. Chemistry

    Entropy both increases and decreases when you build a jigsaw puzzle. How is this possible?

    asked by Kat
  258. MATH AND PHYSICS HELP HELP HELP HELP HELP

    A particle P of mass m=1 moves on the x-axis under the force field F=36/(x^3) - 9/(x^2) (x>0). Show that there is a single equilibrium position for P and that it is stable. Find the period of small oscillations about this point.

    asked by Dwayne
  259. Computers

    What will happen if documents don't have a title bar?

    asked by JoshelaT
  260. math

    input/x,-2,0,2 rule/-x+3 output/y

    asked by jessica
  261. technical math/precal

    18/3square roots of 6-7square roots of 2

    asked by Becky
  262. Economic

    suppose now the inputs of mangoes are taxed. draw the graph to show the economic effects if demand is elastic

    asked by lavinia
  263. Grammar

    Present Tense Verb questions, Which is correct in this sentence? Joe chooses a piece of wood. Is it chooses or chose? Also, Joe lies his jacket on the bench. Is it lays or lies?

    asked by Kam
  264. geometry

    Indicate in standard form the equation of the line passing through the given points. A(4, 1), B(5, 2) please help me

    asked by elena
  265. calculus

    Please help. Applying the chain rule, how do I find the derivative of f(x)=In(e^x-e^-x) (x>0) and then using this answer use the quotient rule to find the second derivative. I cannot do this so any answer greatly appreciated.

    asked by mary
  266. Calc

    Find f(x) if f(1) = −1 and the tangent line at (x, f(x)) has slope7ex + 6. F(x)=

    asked by Rachel
  267. life orientation

    in 15 lines critically discuss 5 ways in which the substance abuse impacts on the community. Provide relevant sources to support your claims.

    asked by raymond
  268. CHEMISTRY

    complete and balance the reaction. HCl + Ba(HO)2 --- the 2 is suppose to be a sub 2 but can get it to do so on this computer and the --- is an arrow. I believe it is BaClO + H2O is this correct?

    asked by Carla
  269. Grammar Verbs

    Is this the correct present tense verb in this sentence? Then Joe starts the power saw. I think it is starts not started.

    asked by Kam
  270. science (force and motion)

    explain how accceleration can be slowing down. Calculate the impact force of a 50 kg object travelling at 100km/hr? -> i was wondering if you can answer directly and not through hyperlinks... thank you

    asked by sarah
  271. MATH

    BOB BOUGHT 12 GALLONS OF GAS FOR $33.48. WHAT IS THE UNITED PRICE PER GALLON.

    asked by crystal
  272. Math 120

    Which of the followinf could not be the value of a correlation coefficient? A) -0.683 B) 0.197 C) 1.000 D) -1.369

    asked by will
  273. Physics

    At what speed must one frame of reference be moving relative to another for the two frames to disagree about lengths by 1%? Express your result as a fraction of the speed of light. At what speed must one frame of reference be moving relative to another for

    asked by Darren
  274. History

    What was the time period for the columbian exchange>

    asked by Annaa
  275. math

    Multiply -x – 2 by-x^2 + 4x – 2

    asked by kozy
  276. grammar

    why shouldnt you use two negative adverbs in a sentence.

    asked by money