Questions Asked on
November 30, 2011

  1. Calculus

    for the function F(t)=ln(t^2), let f(t)=F'(t). Write the integral from a to b of f(t) dt and evaluate it with the fundamental theorem of calculus. the integral from 1 to 3 ___ dt= __

    asked by bob
  2. Chemistry 101

    A sample of a gas (5.0 mol)at 1.0 atm is expanded at constant temperature from 10.0 L to 15 L. The final pressure is _______ atm.

    asked by Joni
  3. chemistry

    Name the compound (CH3)2CHCCCH3 1. 2-methyl-3-pentyne 2. 3-methyl-1-pentyne 3. 5-methyl-2-pentyne 4. 4-methyl-2-pentyne 5. 3-methyl-2-hexane 6. 4-methyl-2-pentene Can you also explain how to draw the structure? Thanks:)

    asked by Anonymous
  4. geometry

    in quadrilateral ABCD AC is a diagonol, m

    asked by Carly
  5. math

    What does a boy who likes to play with switches do?

    asked by Kelsey
  6. algebra

    to qualify for a certain car loan, a customer must have a credit score of at least 600. in addition, the cost of the car must be at least $5000. define variables, write a system of ineaqualities to represent this situation, and name one possible solution.

    asked by Gracyn
  7. math

    out of 32 students in a class 5 said they ride their bikes to school based on these results predict how many of the 800 students in the school ride their bikes to school

    asked by shelby
  8. Physics

    A 0.165-kg ball, moving in the positive direction at 10 m/s, is acted on by the impulse shown in the graph below. What is the ball's speed at 4.0 s?

    asked by Lisa
  9. physics

    two dogs play tug of war with a rope toy that has a mass of 0.50 kg. if one dog pulls on the toy with a force of 140.0 N, and the other dog pulls in the opposite direction with a force of 138.0 N, what is the horizontal acceleration of the toy?

    asked by kristi
  10. Further maths

    The 7th term of an A.p is 20 and the 13th term is 38 find the ,1,70thterm ,2,11thterm

    asked by Joshua
  11. Mohammad

    what groups of canadians come under suspicion of being communists? what actions taken aginst these people? I think western countires come under suspicion, i not sure about this answer.

    asked by smiley face
  12. CHEMISTRY

    What is the electron-domain (charge-cloud) geometry of ClF5?

    asked by Anonymous
  13. PreAP Physics

    Pam has a mass of 40Kg and she is at rest on smooth, level, frictionless ice. Pam Straps on a rocket pack. The rocket supplies a constant force for 22m and Pam acquires a speed of 62 m/s. A) What is the magnitude of the force? B) What is Pam's final

    asked by Mandy
  14. Chemistry

    AlCl3(aq)+ NH4OH(aq)-> Al(OH)3(s) + NH4Cl(aq) AlCl3(aq)+ 3NH4OH(aq)-> Al(OH)3(s) + 3 NH4Cl(aq)... is balanced-- Now total ioic?? Is this right?? : Al +3Cl+3NH4 +OH --> Al+ 3OH+ 3NH4+ 3Cl Crossing out on both sides I end up with OH --> 3OH I do not know

    asked by Ashley
  15. math (taylor polynomials)

    Find the degree 3 Taylor polynomial T3(x) of the function f(x)=(7x+50)4/3 at a=2 Find the second-degree Taylor polynomial for f(x)=4x2−7x+6 about x=0 thank you! (:

    asked by Alison
  16. Chemistry

    a coffee cup calorimeter normally consists of two nested styrofoam cups with a lid. a coffee cup calorimeter of this type contains 125.0 g of water at 20.00 degrees C. A 120.0 g sample of copper metal is heated to 98.0 degrees C by putting it into a beaker

    asked by Julia
  17. math, inequalties

    THIS SEASON, NORA HAS 125 AT BATS IN SOFTBALL. BY THE END OF THE SEASON SHE WANTS TO HAVE AT LEAST 140 AT BATS. HOW MANY MORE AT BATS DOES NORA NEED TO REACH HER GOAL? PLEASE HELP, I NEED TO WRITE AND SOLVE AN INEQUALITIES THAT MODEL THE SITUATION. THANKS

    asked by Justin
  18. Physics please help!

    You are the science officer on a visit to a distant solar system. Prior to landing on a planet you measure its diameter to be 2.070E+7 m and its rotation to be 19.8 hours. You have previously determined that the planet orbits 1.590E+11 m from its star with

    asked by Me
  19. Physics

    Early skeptics of the idea of a rotating Earth said that the fast spin of Earth would throw people at the equator into space. The radius of Earth is about 6400 km. Show why this objection is wrong by determining the following information. a.) Calculate the

    asked by Matt
  20. Science

    Four particles in the xy plane have the following masses and coordinates: 1 kg at (3 m, 3 m), 2 kg at (-2 m, 4 m), 3 kg at (3 m, -2 m) and 4 kg at (-3 m, -4 m). Find the total moment of inertia about: x-axis? y-axis? z-axis?

    asked by John
  21. Maths

    Triangle ABCis right angled at a .AD is perpendicular to BC.If AB=5cm,BC=13cm and AC=12cm,Find the area of triangle abc .Aiso findthe length of AD.

    asked by anonymus
  22. pre algebra

    Application of percent Alice earns a monthly salary of $315 plus a commission on her total sales. Last month her total sales were $9640, and she earned a total of $1182.60.What is her commission rate?

    asked by ava
  23. MATH

    THE AVERAGE WIND SPEED INCREASED 19 MILES/H FROM 8 AM TO 12 NOON. THE AVERAGE WIND SPEED DECREASED 5 MI MI/H FROM 12 NOON TO 4 PM. AT 4 PM, THE AVERAGE WIND SPEED WAS AT LEAST 32 MI/H. WHAT IS THE MINIMUM VALUE OF THE AVERAGE WIND SPEED AT 8 AM? NEED TO

    asked by Justin
  24. physics

    Raft is 4.2m wide and 6.4m long. when horse is loaded onto raft, the raft sinks 3 cm deeper into the water. Find the weight of the horse.

    asked by oopu
  25. math

    There are different ways you can break apart arrays to find 6x7. Choose a way that makes sense to you. Draw an array and explain your thinking. Write multiplication sentences to go with your model. Then give the product

    asked by le
  26. Calculus

    At noon, ship A is 180 km west of ship B. Ship A is sailing east at 40 km/h and ship B is sailing north at 30 km/h. How fast is the distance between the ships changing at 4:00 PM?

    asked by Kristy
  27. College Physics

    Dry Ice. At standard atmospheric pressure, the solid form of carbon dioxide called “dry ice” undergoes a phase change not to a liquid but straight to a gas. This process is called sublimation, and like other phase transitions heat energy is required.

    asked by Anon
  28. Chem 101

    A 5.00 liter sample of gas measured at 27 degrees Celcius and 1.25 atm of pressure has a mass of 10.13 grams. What is the molecular weight of the gas in u?

    asked by Joni
  29. Chemistry

    ZnCl2(aq)+Na2CO3(s)--> ZnCO3(s)+NaCl (aq) Balance the chemical equation and state solid, liq, gas, aq properly to each compound Ok I have it balanced by 2 NaCl in the second part of the equation But now what is the total ionic and net ionic equations?

    asked by Ashley
  30. geometry

    BA is perpendicular to BD. Angle ABE measures 17 degrees and angle DBC measures 54 degrees. Fine the measure of angle EBC.

    asked by gary
  31. math

    sam chovell is a private detective working in the Bay area. One month he helped the police to solve five mysteries

    asked by mike
  32. Physics

    A ball on the end of a string travels in a horizontal circle at a constant speed. The circle has a circumference of 3 m, the ball has a speed of 2 m/s, and the centripetal force is 4 N. How much work is done on the ball each time it goes around? A) zero B)

    asked by Crystal
  33. Physics

    A 10-g bullet is shot vertically into a stationary 8-kg block. The block lifts upward 3.0 mm. The bullet penetrates the block in a time of .001 seconds. Assume the force exerted on the block is constant. What is the impulse imparted on the block by the

    asked by Zach
  34. chemistry

    I have problems with the oxidation numbers of a) POCl3 b) HClO3 Please help!!

    asked by anonymous
  35. algebra

    In a geometric series, suppose g2 = 2 and g6 = 162. What is gngn–1?

    asked by francine
  36. Biology Concepts

    if tall (D) is dominant to dwarf (d0, and two homozygous varieties DD and dd are crossed, what kind of progeny will be produced?

    asked by Janiece
  37. physics

    a ball of mass 0.4 kg is initially at rest on the ground. It is kicked and leaves the kicker's foot with a speed of 5 m/s in a direction of 60 degrees above the horizontal. What is the impulse

    asked by emma
  38. Physics HELP!!

    A steel ball is hung from a vertical ideal spring where it oscillates in simple harmonic motion with a period T . At time t = 0 s, the ball is at its maximum displacement, A , from its equilibrium position. In terms of the period, at what time will the

    asked by Kinga
  39. calculus

    The height (in feet) attained by a rocket t seconds into flight is giving by the function h(t)= -1/3t^3 + 16t^2 + 33t + 10 When is the rocket rising? When is the rocket decreasing? when does it reach its maximum height above the ground? what is the maximum

    asked by chris
  40. Physics

    A bungee jumper, whose mass is 83 kg, jumps from a tall platform. After reaching his lowest point, he continues to oscillate up and down, reaching the low point two more times in 9.7 s. Ignoring air resistance and assuming that the bungee cord is an ideal

    asked by Anne
  41. Science

    At t = 0 s a flywheel is rotating at 30 rpm. A motor gives it a constant acceleration of 0.9 rad/s^2 until it reaches 70 rpm. The motor is then disconnected. How many revolutions are completed at t = 20 s?

    asked by John
  42. SI Chemistry

    hydrogen chloride gas reacts with oxygen gas to yield chlorine gas and water vapor in an equilibrium reaction. an experiment was performed in a closed vessel starting with a mixture of 0.50 M HCl and 0.050 M O2. the amount of chlorine was monitored until

    asked by Cody
  43. geometry

    if AB=2PB, then P is the midpoint of AB

    asked by tre
  44. math

    what is one fourth of eight

    asked by caroline
  45. organic chem

    Which data can be obtained with greater accuracy-the pK values from the "legs" or the isoleric point from the point of inflection? Titration of amino acids Glycine and Lysine

    asked by maya
  46. Physics

    A vertical spring with a spring constant of 400 N/m is mounted on the floor. From directly above the spring, which is unstrained, a 0.30 kg block is dropped from rest. It collides with and sticks to the spring, which is compressed by 2.7 cm in bringing the

    asked by Anne
  47. calc 2

    The height (in feet) attained by a rocket t seconds into flight is giving by the function h(t)= -1/3t^3 + 16t^2 + 33t + 10 When is the rocket rising? When is the rocket decreasing? when does it reach its maximum height above the ground? what is the maximum

    asked by chris
  48. Physics

    I can not figure this out. You are the science officer on a visit to a distant solar system. Prior to landing on a planet you measure its diameter to be 2.070E+7 m and its rotation to be 19.8 hours. You have previously determined that the planet orbits

    asked by Anonymous
  49. Physics

    A tennis player places a 64 kg ball machine on a frictionless surface. The machine fires a 0.051 kg tennis ball horizontally with a velocity of 36 m/s toward the north. What is the final velocity of the machine? Answer in units of m/s

    asked by Timmy
  50. physics

    An object is on a frictionless inclined plane. The plane is inclined at an angle of 16.9 degrees with the horizontal. Using the accerlation due gravity(9.8m/s squared),what is the magnitude of object's acceleration?

    asked by Vlad
  51. Alg2

    how many ways can 5 members of the 100 member US senate be chosen to be put on a committe?

    asked by Rock
  52. 4th grade

    Explain how you would use front-end estimation to subtract 189 from 643.

    asked by Nancy
  53. Physics

    A 0.165-kg ball, moving in the positive direction at 10 m/s, is acted on by the impulse shown in the graph below. What is the ball's speed at 4.0 s?

    asked by Kayla
  54. Physics

    A 63.0-kg bungee jumper is standing on a tall platform (h0 = 45.8 m). The bungee cord has an unstrained length of L0 = 9.18 m and, when stretched, behaves like an ideal spring with a spring constant of k = 67.2 N/m. The jumper falls from rest, and it is

    asked by Anne
  55. Physics

    Carmen and Judi dock a canoe. 83.0-kg Carmen moves forward at 4.3 m/s as she leaves the canoe to step onto the dock. At what speed and in what direction do the canoe and Judi move if their combined mass is 115 kg? (Use a positive number if the canoe moves

    asked by Lauren
  56. math

    a beetle is 1.8cm long. A drawing of the beetle is made using a scale of 5:1. what is the length of the beetle in the map?

    asked by ayush
  57. MATH

    SUPPOSE IT TAKES NO MORE THAN 25 MIN FOR YOU TO GET TO SCHOOL. IF YOU HAVE TRAVELED FOR 13.5 MIN ALREADY, HOW MUCH LONGER, AT MOST, MIGHT YOU TAKE TO GET TO SCHOOL? PLS HELP ME. I NEED TO SOLVE AN INEQUALITY THAT MODELS THIS PROBLEM. THANKS

    asked by Justin
  58. Physics

    A car has a mass of 2500 kg rounds a circular turn with a radius of 50 m. If the road is flat and the coefficient of friction is 0.7 between the tires and the road, how fast can the car go without skidding?

    asked by Anonymous
  59. Physics

    A 63.0-kg bungee jumper is standing on a tall platform (h0 = 45.8 m). The bungee cord has an unstrained length of L0 = 9.18 m and, when stretched, behaves like an ideal spring with a spring constant of k = 67.2 N/m. The jumper falls from rest, and it is

    asked by Anne
  60. physics

    A 1400kg car starts at rest and rolls down a hill from a height of 12m. (a) how much kinetic energy does the car have at the bottom of the hill?(b) how fast is the car going at the bottom of the hill? Can someone explain how to do it!

    asked by kiki
  61. algebra

    to qualify for a certain car loan, a customer must have a credit score of at least 600. in addition, the cost of the car must be at least $5000. define variables, write a system of ineaqualities to represent this situation, and name one possible solution.

    asked by Gracyn
  62. AP Calculus

    The 9th term of an arithmetic progression is 4+5p and the sum of the four terms of the progression is 7p-10, where p is a constant. Given that common difference of the progression is 5, find the value of p.

    asked by Watermelon
  63. math

    Jumping spiders can commonly be found in homes and barns throughout the United States. A jumping spider's jump can be modeled by the equation h = 33.3t - 16t2, where t represents the time in seconds and h is the height in feet. When is the spider's height

    asked by chelsea brown
  64. Math Grade 3

    A Banana Has 27 Grams Of Carbohydrates. It Has A Total Of 121 Calories. How Many Of Its Calories Come From Sources Other Than Carbohydrates?

    asked by Hong
  65. history

    The West African nation of Liberia was founded under the auspices of A. Dorothea Dix. [B. the American Colonization Society.] C. the American Peace Society. D. William Lloyd Garrison. is my answer correct in the brackets

    asked by jake
  66. physics

    Early skeptics of the idea of a rotating Earth said that the fast spin of Earth would throw people at the equator into space. The radius of Earth is about 6400 km. Show why this objection is wrong by determining the following information. a.) Calculate the

    asked by Jordan
  67. calculus

    They're actaully 2 question :D 1.find the rate of change of the distance between the orgin and a moving point on the graph of y=x^2+1 if dx/dt=2 centimeters per second when x=1. 2.A triangular trough is 12 feet long and 3 feet across the top. it ends are

    asked by Yoona
  68. Chemistry

    How would I make the VSEPR for potassium iodide (KI) I believe I made the right Lewis Structure, but am confused on what geometry a VSEPR structure would be. Thanks!

    asked by Abby
  69. Chemistry

    Calculate the pH at the halfway point and at the equivalence point for each of the following titrations.100.0 mL of 0.56 M HCl titrated by 0.28 M NaOH halfway point equivalence point

    asked by Sarah
  70. chemistry

    What is the electron-domain (charge-cloud) geometry of

    asked by Anonymous
  71. physics

    A 69.4-kg skier coasts up a snow-covered hill that makes an angle of 24.3° with the horizontal. The initial speed of the skier is 7.04 m/s. After coasting 1.78 m up the slope, the skier has a speed of 3.04 m/s. Calculate the work done by the kinetic

    asked by Kim
  72. Physics help please!

    While visiting Planet Physics, you toss a rock straight up at 13.6 m/s and catch it 3.50 s later. While you visit the surface, your cruise ship orbits at an altitude equal to the planet's radius every 340.0 minutes. What is the mass (in kg) of the planet?

    asked by ....
  73. history

    The keystone to what Henry Clay called the American System was? A. abolishing slavery. [B. a high tariff.] C. encouraging British competition. D. a low tariff is my answer in brackets correct

    asked by jake
  74. Physics

    A 0.165-kg ball, moving in the positive direction at 10 m/s, is acted on by the impulse shown in the graph below. What is the ball's speed at 4.0 s?

    asked by Jordan
  75. Science

    Two particles with masses 3.1 kg and 6.6 kg are connected by a light rod of length 4 m. Find the moment of inertia of the system about an axis perpendicular to the rod and passing through: a) the midpoint of the rod; b) the center of mass of the system of

    asked by John
  76. Science

    A block of mass 3.1 kg hangs vertically from a frictionless pulley of mass 5.9 kg and radius 14 cm. Treat the pulley as a disk. Find: a) the acceleration of the block; b) the tension in the rope; c) the speed of the block after it has fallen 55 cm,

    asked by John
  77. government MS. Sue please

    Ms. Sue, Could you double check these, I asked you earlier and got the ball rolling. I had to choose five interests that are affecrted by public policy decisions. I chose No Child Left Behind, Health care insurance, environmental safety, veterans groups,

    asked by m
  78. science

    A 1,200kg car has its tyres inflated to a gauge pressure of 180kPa.How large an area for each tyre is in contact with the ground?

    asked by haggai
  79. physics

    A bicyclist is traveling at 19.3 km/h when he speeds up with a constant acceleration of 0.67 m/s2. What is his velocity after 5.00 s?

    asked by john
  80. Chemistry

    Calculate the pH at the halfway point and at the equivalence point for each of the following titrations.100.0 mL of 0.56 M HCl titrated by 0.28 M NaOH halfway point equivalence point

    asked by Sarah
  81. trig

    I need to prove equality. a) (sina + cosa)^2 -1 / ctga - sinacosa = 2tg^2a b) (sin^2x/sinx-cosx) - (sinx+cosx/tg^2x+1) = sinx + cosx c) sin^4a - sin^2a - cos^4a + cos^2a = cosπ/2 How to do these?

    asked by Evelina
  82. chemistry

    a pure copper penny contains appoximatel 3.0 x 10 to the 22 copper atoms. use the definitions in the previous problem to determine how many______of copper atoms are in a penny.

    asked by Anonymous
  83. Alg2

    what is the number of possibilities of arrangements of the letters in the word intercept?

    asked by Rock
  84. physics

    please help: 2 horizontal forces, one 180.0 N and the other 200.0 N, are exerted in opposite directions on a boat on a lake. What is the net horizontal force on the boat? Thanks for your help.

    asked by julie
  85. physics

    A thin spherical shell with mass of .4kg and diameter of .2m is filled with alcohol(density=806kg/m^3). It is then released from rest at the bottom of a pool of water, Find the acceleration of the alcohol filled shell as it rises to the surface of the

    asked by oopu
  86. physics

    The outer edge of a truck tire that has a radius of 50 cm has a velocity of 29 m/s. What is the angular velocity of the tire in rad/s?

    asked by Lauren
  87. statistics

    Determine the probability that a sample of 49 boxes will have a mean weight below 365grams. past records show that the population mean is 368 grams and the population standard deviation is 7. the probability will be between

    asked by wanda
  88. Chemistry

    CONSIDER THE FOLLLOWING UNBALANCED REDOX EQUATION: IO3^-(AQ) + Al(S)-->I2(S) + A;^3+(AQ) A. WHAT IS THE OXDATION NUMBER OF IODINE IN THE IODATE ION? I GOT IO3^6(AQ)? B. WHICH SPECIES IS THE REDUCING AGENT I GOT AL^3+(AQ) C. USING THE OXIDATION AND

    asked by PAM
  89. Texas History- Help please!

    I need to list 3 problems of the colony that Stephen Fuller Austin founded. I have two of the three- -no food -bad indian relations I need one more!

    asked by Anonymous
  90. trig

    for what values of theta between 0 and 2 pi is the function of theta equal sine theta positive?

    asked by matthew
  91. maths

    2 over 5 plus 1 over 8 equals blank plus blank equals

    asked by jack
  92. math scientifi notation

    i need to write the each number in scientifi notation. the brain contatins about 100 trillion nerve connections i wrote: 1 x 10^11 power the volume of the water behind the grand coulee dam is aobut 10.6 million cubic yards i wrote: 1.06 x 10^2 power are

    asked by marko
  93. biology

    which of the following represents the F1 generation of a monohybrid cross of YY x yy parents? a)100%Yy b)75%Yy:25%YY c)25%Yy:75%yy d)100%yy

    asked by denis
  94. geometry

    AB=2x, BC=x-3, AC=45

    asked by het
  95. Chemistry

    Calculate the pH at the halfway point and at the equivalence point for each of the following titrations.100.0 mL of 0.56 M HCl titrated by 0.28 M NaOH halfway point equivalence point

    asked by Sarah
  96. math

    The volume of a cone is given by the formula V = (1/3)r2h. A cone has a volume of 11,907 cm3 and a radius of 21 cm. what would be the height of the cone.

    asked by cheyenne
  97. intro chem

    which sample contians the greatest number of atoms. a)10.0g He b)25.0g Ne c)115g Xe

    asked by misty
  98. Question

    Do I have to get straight A+ to make it to Yale????? My friend said that a A is not good enough.

    asked by Laruen
  99. statistics

    What is the probability that a student in a college of 650 students in both a math major and a computer science major ( assuming these events are independent) If there are 72 math majors and 105 computer science majors?

    asked by Lisa
  100. statistics

    Find the area under the standard normal curve for the following: (A) P(z < -1.80) (B) P(-1.93 < z < 0) (C) P(-0.17 < z < 2.05)

    asked by dee
  101. Chemistry

    Write the full electron configuration for the ground state of each of the following: a. Ni b. Ni2+ I'm not exactly sure what to do here, please help!

    asked by Beth
  102. Science

    Two blocks with masses m1 = 3.9 kg and m2 = 6.7 kg are connected by a string that hangs over a pulley of mass M = 2.2 kg and radius R = 0.11 m as shown above. The string does not slip. Assuming the system starts from rest, use energy principle find the

    asked by John
  103. Further maths

    The 7th term of an A.p is 20 and the 13th term is 38 find the ,1,70thterm ,2,11thterm

    asked by Joshua
  104. chemistry

    What is the density of propene gas measured at 2.5 atm and 47C? I know that I use the combine gas law, but I don't know how to find "n" in this particular problem. Please help ASAP!

    asked by Henry
  105. math, inequalties

    IT WILL TAKE AT LEST 360 POINTS FOR KIKO'S TEAM TO WIN THE MATH CONTEST. THE SCORES FOR KIKO'S TEAMMATES WERE94, 82, AND 87, BUT ONE OF KIKO'S TEAMATES LOST 2 OF THOSE POINTS FOR AN INCOMPLETE ANSWER. HOW MANY POINTS MUST KIKO EARN FOR HER TEAM TO WIN THE

    asked by Justin
  106. Chemistry

    the corrosion of iron is similar to the reactions that occur in an electrochemical cell. Oxidation and reduction occur at separate places on the metal and the circuit is completed by an electrolyte in solution one possible corrosion is Fe(s)+O2(g) + H2O(l)

    asked by ryan
  107. MTH209

    Use the graph of the system to determine the solution. x + y = 4 x+ 3y= 6 What is the solution? Select the correct choice below and fill in an answer boxes in your choice. A. (Type an ordered pair). B. There are infinitely many solutions. C. There is no

    asked by Tangela
  108. math divisibility

    i need to write the missing digit to make each number divisible by 3 1,843,#89 i got the missing number as : 3 s/b 1,843,389 is that right? #2 i need to write the missing digit to make each number divisible by 8 2,4#2 i cant figure that out i got : 2,422?

    asked by marko
  109. Social Studies

    What car did Henry Ford introduce in 1908? By 1927, 15 million had been manufactured

    asked by Jaycee
  110. us history

    How Did the Industrial Revolution impact American Society economically, socially, politically, and morally?

    asked by Kirsten
  111. Spanish-Please check SraJMcGin

    1.¿Comó te sentiste ayer? Me sentí muy bien ayer. 2. ¿Adonde fuiste ayer? Yo fui al cine. 3. ¿Adonde fue tu mama ayer? Mi mama fue a la tienda. 4. ¿Visitaste a tu familia la semana pasada? Sí, yo visité mi familia la semana pasada. 5. ¿Donde

    asked by Mia
  112. science

    When water is split into hydrogen and oxygen what happens- is it a change in matter

    asked by robin
  113. Chemistry

    For water hardness experiment using EDTA titrant: 1. Suppose water hardness was 600mg CaCO3/L, how much sample should be used to ensure 10-50mL of titrant will be used (assuming titer of 1.00mg CaCO3/ml EDTA) 2. How can EDTA be used to analyze other

    asked by Ken
  114. calc

    a stone is thrown striaght up from the roof of an 80 foot building. the height of the stone above the ground t seconds later is giving by the function h(t)=-16t^2 + 64t +80 during what time is the stone rising? when is the stone falling? what is the

    asked by chris
  115. physics

    A vehicle with an initial displacement of 10.om and an initial velocity of 16.0 m/s accelerates at an average rate of 0.50 m/s2 for 4.0 s. What is the vehicle's displacement after 4.0 s?

    asked by terri
  116. Calculus

    I am having trouble differentiating x^2 + 2lny = y (solving for dy/dx). I know that I need to do implicit differentiation, but the answer I get is not correct. The answer I got was (2x-2xy)/2, but the answer is (2xy)/(y-2). How do I do this problem?

    asked by W
  117. Physics

    if a baseball is thrown 30 m/s backwards from a truck moving 50 m/s, how fast will the ball strike the glove of a ground based catcher?

    asked by christy
  118. physics (biomechanics)

    briefly explain how an athlete competing in the long jump can prevent the trunk from pitching forward after take-off

    asked by Lauren
  119. physics

    A 530 cannon fires a 12 cannonball with a speed of 200 relative to the muzzle. The cannon is on wheels that roll without friction.

    asked by Anonymous
  120. chemistry

    Silver is electroplated at the cathode of an electrolysis cell by 1/2 reaction Ag(aq) + e- --> Ag(s). How many moles of electrons are required to electroplate 5.8g of Ag?

    asked by Ashley
  121. math

    Three men (Tom, peter, and jack)and three women (Eliza, Anne, and Karen) are spending a few months at a hillside. They are to stay in a row of nine cottages, each one living in his or her owm cottage. There are no others staying in the same row of hoses.In

    asked by Dell
  122. math

    Jane is taking a class and asks you to help her figure out what her last grade must be in the class to get a 85 in the class. She tells you the following calculation is used to find your final grade: 75+85+90+X ___________ > 4 x is her last score which has

    asked by Jennifer
  123. history

    During Jefferson's presidency, cities were A. mostly found along the Mississippi. B. mostly the haunts of thieves and degenerates. [C. mainly ports for international trade.] D. mainly industrial centers is my answer in brackets correct

    asked by jake
  124. math

    (1A) Write the 11-digit number that has a 2 in the ones place,1 in the tens place,a digit in the ten-thousands place that is twice the digit in the ones place,the smallest odd digit in the billions place, 6 in the tenths place, and 0 in all the other

    asked by peter
  125. geometry

    1. The base of an isosceles triangle JKL has the endpoints J and K. Point K is located at (2,1) and the top of the triangle, point L, is located at (-1,5). Use the distance formula to find the location of point J.

    asked by Anonymous
  126. english editing (the rest))

    "Yes I did" the turtle said. They went on arguing, and arguing the rabbit lost his mind; He got a stick, and start beating the turtles back shell. Break the shell all up. That is why the turtle has spots all over him. The Turtle was all beat up, broken

    asked by Anonymous
  127. Chemistry

    Draw a simple model of an atom to show the position of each of the comstituents of the atom.

    asked by Shamsuddeen
  128. sci 207

    What waste disposal methods are available to humans and how might they be more effective?

    asked by Xan
  129. history

    Which of the following statements about the Southern planter's world is most accurate? A. The stereotype of the "southern belle" is fairly accurate. B. Most great planters of the Old South were self-made men. C. The wives and daughter of plantation owners

    asked by jake
  130. Science

    How much more sugar could be added to 100 mL of water if it's temperature was raised from 50 degrees C to 70 degrees C?

    asked by Jordyn
  131. history

    why did people come to jamestown? Opitional homework question (If you read the book "Our Strange New Land" , why did elizabeth go to jamestown.

    asked by ian
  132. english

    how to write a formal letter to a editor about declining population of animals in hills.

    asked by talati
  133. Science

    A torque of 60 N*m acts on a wheel of moment of inertia 30 kg*m^2 for 5 s and then is removed. a) What is the angular acceleration of the wheel? b) How many revolutions does it make in 15 s if it starts at rest?

    asked by John
  134. math 3rd grade

    Sam is making a necklace she uses 2 red beads, then 1 yellow beads then 2 red beads, then 1 yellow bead. How many red beads will she use if she uses 24 beads. The answer is 16 But the problem is we cant figure out the equation???

    asked by daniel's mom
  135. English 7 (Ms. Sue)

    Ms. Sue I need your help for the second paragraph for my essay. I need 3 supporting deatils for this paragraph but I got 1, need 2 more. Rosa Parks wanted people (blacks) to be free and have a better education. Most blacks couldn't go to the same schools

    asked by Laruen
  136. US History

    Fighting the Depression Against Drastic Measures "We are told by the opposition that we must have a change, that we must have a new deal. It is not the change...to which I object but the proposal to alter the whole foundations of our national life which

    asked by Sarah Beth
  137. calculus

    Solve the differential equation below, given the initial condition f(0) = 3. Express your answer using words or symbols. y=-5x^2

    asked by Courtney
  138. Earth Science

    Which Scientific hypothesis for the Origin of Life on Earth is most widely accepted.? What evidence is there for the hypothesis? Need help. I'm just not how to go with the question.

    asked by JOY
  139. Cal

    If a snowball melts so that its surface area decreases at a rate of 3 cm^2/min, find the rate at which the diameter decreases when the diameter is 8 cm.

    asked by Nykie
  140. For Hm

    http://www.jiskha.com/display.cgi?id=1322675851

    asked by Writeacher
  141. Math

    Could someone answer this question so I understand it. The answer is 28.0, but i'd like to know how to do it. Thanks Randomly selected cars were weighed, and the highway fuel consumption amounts (in miles/gal) were determined. For 20 cars, the linear

    asked by JAY
  142. microeconomics

    Many factors determine the supply and demand for labor. Identify and explain two factors that would increase or decrease the demand for labor. Identify and explain two factors that would increase or decrease the supply of labor. Use the readings and/or the

    asked by keith
  143. Chemistry

    List the sets of quantum numbers which describe all of the electrons possible in a 6p wave function (orbital): I'm really having trouble figuring this out!

    asked by Nicole
  144. math

    An ice cream shop is changing the size of their ice cream cone. The volume of a cone is . How much will the ice cream cone hold if the radius is 4 inches and the height is 3 inches? Round your answer to the nearest hundredth place.

    asked by chelsea brown
  145. science

    Why is the helium spectrum have so many more lines than the hydrogen spectrum?

    asked by hewitt
  146. To Mohammad

    Please try to post again. I may have corrected the problem. Also, see my last response to your sister's posting.

    asked by Ms. Sue
  147. Geometry

    I need some help with this question. I need to find the measurement of M

    asked by Allyson
  148. chemistry

    cold water mass of calimeter+ water: 68.66g mass of calimeter: 19.19g mass of water: 49.47g final temperature of water: 39.1C initial temperature of water: 25.5C delta(T) of water: 13.6C hot water mass of calimeter+ water: 79.55g mass of calimeter: 20.61g

    asked by Yuli
  149. trig

    I need to count this: a) 1-tg^2a/1+ctg^2a, when sina =2/3 b) 1-tg^2a/1-ctg^2a, when cosa= -1/3 c) tga * cos^2a, when sina + cosa=5/7 d) tg^2a + 1/sina * 1/cosa + ctg^2a, when tga + ctga =5

    asked by Evelina
  150. research & Evaluation II

    The F test is used to compare the variances of two samples

    asked by Sam
  151. Physics

    In 0.780 s, a 6.50-kg block is pulled through a distance of 3.85 m on a frictionless horizontal surface, starting from rest. The block has a constant acceleration and is pulled by means of a horizontal spring that is attached to the block. The spring

    asked by Anne
  152. Chemistry

    How do I find the POtential Energy for a reaction from strontium chloride and potassium carbonate? and what is the chemical reactions for the above

    asked by SBB
  153. government

    How do the senate and the house of representatives work together to pass bills into laws?

    asked by andrew
  154. microeconomics

    Immigration is a major topic of concern in today’s economy. What are the possible problems and solutions for these concerns? What could happen to the U.S. labor markets if immigration is not controlled?

    asked by keith
  155. English

    I urgenlty need your help to express a few things. Thank you 1)Before starting the e-mail partnership I'd like to know if we could choose a topic concerning history and art for our Comenius project, in which the lingua franca will be English. 2)We know you

    asked by Henry2
  156. science

    an oil tanker has a mass of 100 000 tonnes. its kinetic energy is 200 MJ.Calculate its speed. (1Tonne=1000kg, 1 MJ= 1 Megajoule= 1 000 000 J) PLEASE HELP

    asked by jessy
  157. Physics

    Your swimming pool is square and 6.1 m on a side. It is 1.4 m deep in the morning. If the temperature changes by 19°C during the afternoon, how much does the depth of the water increase?

    asked by Jon
  158. history

    The Liberator was to William Lloyd Garrison as the North Star was to [ A. Frederick Douglass.] B. the Grimke sisters. C. Harriet Tubman. D. Theodore Dwight Weld. is my answer in brackets correct

    asked by jake
  159. calculus

    If f(x) is odd and the integral from -3 to 7 of f(x) dx is 11, then the integral from 3 to 7 of f(x) dx is __

    asked by bobby
  160. english

    can i get help on a Question?

    asked by amber
  161. English

    I urgently need your help to find the proper words. Thank you. 1) Thank you very much for answering my email. I hope you don't mind me writing in English (to you) instead of German. Feel free to answer in German. 2)I'm very pleased to start working with

    asked by Henry2
  162. SS

    Write a position paper on how British policies spurred the growth of representative government during the colonial period. American history 1700's. After the French Indian war.

    asked by Michael
  163. calculus

    Evaluate the integral. Express your answer using words or symbols. ç(-2sin x) dx

    asked by Courtney
  164. maths

    Solve the following differential equation: (1 + x)*(dy/dx) = y where y is a funtion of X solve by the following: A)series expansion B) elemantary method please show working

    asked by ryan
  165. Chemistry

    A solution is prepared by dissolving NH3(g) in water according to the following equation. NH3(g) + H2O(l)=NH4^+(aq)+ OH^-(aq) If the pH= 9.60 what is the [OH-] in the solution.

    asked by Julia
  166. algebra

    -5k squared + 125=0 use the square root properly to slove the equation

    asked by stella
  167. geography

    How did the geographic features of ancient egypt provide the people with protection, help with trade, and make them excellent farmers ?

    asked by jaquan brown
  168. math

    List at least one way in which a scalene triangle and equilateral triangle are the same.

    asked by tom
  169. English

    I urgently need you to check these sentences. Thank you. 1) My village is a ten-minute drive from Milan. 2) It's ten minutes' drive from Milan. 3) I like living here because I don't have to watch out for traffic all the time. 4) There are only two hundred

    asked by Henry2
  170. history

    Which of the following was true of the Judiciary Act of 1801? A. It packed the Supreme Court with Democratic Republicans. [B. It expanded the federal court system.] C. It was opposed by the Federalists. D. It reduced the power of the federal courts is my

    asked by jake
  171. ENGLISH-HELP!!!!

    Anyone know where I can find a good detailed summary of the ramayana by narayan?

    asked by Rebecca
  172. english

    I have to write a paper on "The Namesake" about an important theme. What are some ideas I can possibly write about?

    asked by jon
  173. Spanish-Please check

    1.¿Comó te sentiste ayer? Yo sentí muy bien. 2. ¿Adonde fuiste ayer? Yo fui al cine. 3. ¿Adonde fue tu mama ayer? Mi mama fue a la tienda. 4. ¿Visitaste a tu familia la semana pasada? Sí, yo visité mi familia la semana pasada. 5. ¿Donde estudiaste

    asked by Mia
  174. mathematics

    Solve the following differential equation: (1 + x)*(dy/dx) = y where y is a funtion of X solve by the following by: A)series expansion B) elemantary method please show working

    asked by ryan
  175. statistics

    determine the probability that a sample of 49 boxes will have a mean weight below 365 grams. past records show that the population mean is 368 grams and the population standard deviation is 7. the probability will be between.

    asked by wanda
  176. physics

    Please help. Thanks! A car/truck with an initial displacement of 10.0 m and an initial velocity of 16.0 m/s accelerates at an average rate of 0.50 m/s2 for 4.0 s. What is the vehicle's displacement after 4.0 s?

    asked by kristi
  177. statistics

    Measures of Central Tendency,variability, and postion 12th Grade math class. organize the data 78,67,95,85,84,86,82,75,85,94,91,57,78,77,88,90,91,86,84,82,75,58,73,75. Then do 4 columns of Grades,Deviations,Squares,and Z-Scores

    asked by Lisa
  178. calculus

    Approximate the area in the first quadrant between the x-axis, the y-axis, the line x = 3, and the function f(x) = x^2+1 For this approximation, you must use 6 rectangles of equal width, and this must be a lower sum. In your answer, you must include

    asked by Courtney
  179. Spanish-SraJMcGin please check

    1.¿Comó te sentiste ayer? Yo sentí muy bien. 2. ¿Adonde fuiste ayer? Yo fui al cine. 3. ¿Adonde fue tu mama ayer? Mi mama fue a la tienda. 4. ¿Visitaste a tu familia la semana pasada? Sí, yo visité mi familia la semana pasada. 5. . ¿Donde

    asked by Mia
  180. math

    Danielle has 4 hundreds,3 tens, and 6 ones blocks. Identify the greatest and the least possible 3-digit numbers she could subtract from that number. Then give the greatestand least possible 2-digit numbers she could subtract.

    asked by liz
  181. Physics

    Please guide me in the right direction, am so confused with this problem. A pendulum of length L is caused to swing by releasing it at an initial angle theta0 from the vertical. Because of air drag and friction in the mounting, the pendulum will

    asked by Angel
  182. PHYSICS

    a) How much energy is required to evaporate all the water in a swimming pool of area 158 m2 and depth 4.1 m (b) The intensity of sunlight is about 1080 W/m2. If all of this energy is absorbed by the water in the pool, how long will it take for take the

    asked by anon
  183. algebra

    write the equation for this situation the population, p, in thousands,can be approximated by the sum of 4 and one-half times the years since 1985,d. Then graph the equation and use the graph to determine the population in the town in 1995.

    asked by Angela
  184. CIVIL WAR, RECONSTRUCTION, ANDINDUSTRIAL-URBAN SOC

    Which country lawyer from Ashtabula, Ohio, argued that criminals are not born, but are made by the unjust condition of human life

    asked by Anonymous
  185. 3rd Grade Math

    Why is this statement wrong? The greater number of counters, the greater the number of arrays you can form.

    asked by Emily
  186. History

    I need to list 3 problems of the colony that Stephen Fuller Austin founded. I have two of the three- -no food -bad indian relations I need one more!

    asked by Anna
  187. Language Arts

    Hello, I have been searching the web for any info on author James B Garfield, he wrote Follow My Leader. I have to create a book jacket for my lit circle group and info on the author is needed. I have checked every site and NOTHING!! Can you help???

    asked by Gina
  188. trig

    Patients with acute or serious infections, such as Salmonella typhi or gram-negative bacteria causing meningitis, can be successfully treated with regular doses of Chloramphenicol. A patient weighing 150 pounds requires a dose of 850 milligrams, while a

    asked by brit
  189. english

    i am writing an essay on texting conversation i also need to write about texting could you write some bullet points for the plan please

    asked by anabel
  190. statistics

    the mean of all possible means(when dealing with a sampling distribution) will be equal to the population mean.

    asked by wanda
  191. physics

    A fire hose can fill a certain tank with water during 1 hour. A 2nd fire hose can fill the same tank in half hour. A 3rd fire hose can fill the same tank in quarter hour. find the time necessary to fill the same tank by the 3 fire hoses together

    asked by amal
  192. science

    Why is oxygen important for life? Why is Nitrogen important for life? please help me :D

    asked by Anonymous
  193. physics

    It takes 175 kJ of work to accelerate a car from 23.9 m/s to 27.7 m/s. What is the car's mass?

    asked by Al
  194. spanish

    How do I use the cue to write sentence with the ver gustar for: Roberto/los libros de misterio/no

    asked by Tina
  195. English

    I rethought them all. Thank you very much. 1)The following morning he is very polite to the old man and continues to carry out his duty asking the man how he has spent the night. 2)At 4 a.m., just when he has finished his work, the narrator answers a knock

    asked by Henry2
  196. history

    In the Old South, the majority of slaves [A. lived on plantations with 20 or more slaves.] B. lived on plantations with 100 or more slaves. C. worked under a task system. D. lived on small farms. is my answwer correct in brackets

    asked by jake
  197. geometry

    The sides of a parallelogram are 25 cms and 15 cms.The height to the 25 cms side is 15 cms.What is the speciality of this parallelogram ?

    asked by ash
  198. math

    if 1 glass of orange juice has 120ml how much will be left in raj drinks half of it

    asked by musu
  199. calculus

    Find the integral of x^3 + [(x^4)(tanx)] from -pi/4 to pi/4

    asked by Gabe
  200. statistics am i right so far

    SO FAR I HAVE 9.63 FOR THE 1ST 2 COLUMNS AND 7.56 FOR LAST COLUMN FOR THE VARIANCES. I GOT Z= .0875 SEDIFF =1.2364 SEm=.6019 for 1st set of #s and SEm=1.08 for 2nd set of #s is that correct and now what? A total of 23 High School students were admitted to

    asked by jabrony
  201. physics

    tow horizontal forces, one 180.0 N and the other 200.0 N, are exerted in opposite directions on a boat on a lake. What is the net horizontal force on the boat? Thanks for your help.

    asked by julie
  202. math

    Part 1 In your own words, define the word “function.” Give your own example of a function using a set of at least 4 ordered pairs. The domain will be any four integers between 0 and +10. The range will be any four integers between -12 and 5.Explain why

    asked by king
  203. Alg2

    what is the # of possibilities of buying 2 CD's from 10 that are on sale?

    asked by Rock
  204. Comprehensive English

    Writeacher please check my last post, you never replied.. it kind of left me wondering.. you said you would give me some ideas.

    asked by Hm
  205. Business

    Explain the Fortune 500 business's "love affair" with quality standards such as Six-Sigma, ISO 9000 and the Baldridge Awards - what is the "big deal?" Can you please help me with this one or Do have any links that can guide me to answer this question?

    asked by Bella C.
  206. Chemistry

    When 25.0g of Zn reacts, how many L of H2 gas are formed at 298K abd a oressure of 854mmHg?

    asked by Marie
  207. English

    In my original version I had the simple past and past perfect. I tried to use the simple present (in place of the simple past) and nearly always the present perfect (in place of the past perfect). However, I’m still unsure. Could you please check them

    asked by Henry2
  208. arithmetic

    whats the first term if the third term is 21 and the eighth term is 56?

    asked by reba
  209. french

    I have a project where I have to make a video about the differences between arts in USA and in Alsace, France. Arts meaning painting, sculpture, music that kind of thing. I have been try to research but have not come up with much. I don't really know what

    asked by Hannah
  210. COMPUTER HARDWARE MANAGEMENT

    how can you obtain real-time ,current information in Windows NT /200/xp about the 1)number of memory pages per second 2) average disk quee length and 3) percentage of processor time being utilized a) type perform in the run dialog box and click OK b)go to

    asked by vedrana
  211. Aztecs

    could someone tell me more about the Aztecs. (Yes, I have checked google and I have some information). -Thanks, w/apprecation Shay

    asked by Shay
  212. physics

    A ball is dropped from a roof to the ground 4.00 m below. Exactly 0.400 s later, a rock is thrown downwards with some initial velocity. If the two objects hit the ground at exactly the same time, what was the initial speed of the rock?

    asked by Charles
  213. Algebra 2

    Show that for any complex number z, |z| = |-z|. (Hint: Let z = a + bi.)

    asked by Peter
  214. Math

    Please help ms on this problem 74% of 99

    asked by Lee
  215. government

    I have to make a chart that shows five interests that are affected by public policy decisions. I am not 100% sure on this and did post earlier to which Ms. Sue graciously told me my 2 originals were ok. I have figured out these 5 but want to make sure they

    asked by m
  216. irish

    25 sentences on how you WILL SPEND! a day either at the weekend or tomorrow, a school day, or any piece of writing in the future tense. in irish can you help with a couple of them please!

    asked by chloe
  217. math

    A Banana Has 27 Grams Of Carbohydrates. It Has A Total Of 121 Calories. How Many Of Its Calories Come From Sources Other Than Carbohydrates?

    asked by Hong
  218. Chemistry

    What is wrong with these sets? Fix what's wrong: n=4, l=3, ml=4 n=2,l=-1, ml=1 I don't exactly even know what the question is asking!

    asked by Maggie
  219. STATISTICS HELP PLEASE

    Gender Math M 690 M 550 F 800 F 610 M 540 F 660 M 700 M 560 F 560 M 390 F 530 M 560 F 590 F 520 M 740 F 560 M 620 M 700 M 620 F 500 M 760 F 710 M 590 M 670 M 670 a. Determine whether the sample provides statistical evidence that males have higher Math

    asked by jabrony
  220. maths

    Solve the following 2nd order differential equation explicitly by expanding up to order x5, y''(x) = (1 + x^2)*y(x) pls show working y =f(x)

    asked by ryan
  221. physics

    how can projectile motion be applied in porkour?

    asked by sami
  222. Animal Science

    I need a statistic of how many dogs and cats are currently in a foster home in the us. Does anyone know a website that has this credible statistic? thanks

    asked by hannah
  223. statistics

    Find the value of z such that approximately 20.88% of the distribution lies between it and the mean.

    asked by tina
  224. math

    How do u put 180 words in a 3 minutes

    asked by santana
  225. physics

    Give an account of Neil's Bohr and it's limitation

    asked by Shamsuddeen
  226. Math/Algebra

    Bob's Job Shop used one solvent that is 25% acid and a second that is 50% acid. How many liters of each should be mixed to get 10L of a solution that is 40% acid?

    asked by Tamra
  227. physics

    how long does it take a boy to walk 430 m if he walk at a rate of 40 m/hr ? please answer in minutes

    asked by yani
  228. physics

    how long does it take a boy to walk 430 m if he walk at a rate of 40 m/hr ? please answer in minutes

    asked by yani
  229. history

    Under America's second party system, the Whigs stood for? A. policies that kept government hands off business and industry. B. a "negative liberal state." C. a "liberally negligent" state. [D. policies that directly supported commercial enterprises ] my

    asked by jake
  230. chemistry

    How many atoms are in 95.96 g of molybdenum (Mo)

    asked by christine
  231. ALGEBRA

    Andy draws the question card, “How many 7s do you see?” He answers, “one,” because he cannot see the 7 on his own head; he sees only the 7 on Belle's head. Next Belle draws the question card, “ Of the four even numbers, how many different even

    asked by Daniel
  232. language arts

    What is a good website that would tell me literary facts/vocab, ways to identify it, and the purpose of the literature genre mystery?

    asked by cowgirl
  233. math

    simplify 5square root symbol -1/1024

    asked by Allison Anderson
  234. math

    3(x+ -5)+7(x+2)

    asked by cassandra
  235. Quick ? Geography check

    Is Nicaragua a latin american country? I think so, but I just wanted to make sure.

    asked by Samantha
  236. calculus

    Find the integral of x^3 + [(x^4)(tanx)] from -pi/4 to pi/4

    asked by Gabe
  237. science

    sample of gas at 17°C from a volume of 5.68 L and 1.10 atm to a container at 37°C that has a pressure of 1.10 atm. What is the new volume of gas?

    asked by Anonymous
  238. Math

    subtractand simplify 7-x/x-9-7x-8/9-x. I got (6x-1)/(x-9) Is this correct?

    asked by Allison Anderson
  239. english-URGENT NEED OF HELP!

    I need the format of a business letter, and a friendly letter! P.S: also need the spacings if they are any. I mean like the spacings(No. of lines) between ______ and _______.

    asked by Howler
  240. Composition and Communication I

    Explain how purpose, audience, tone, and content impact academic writing.

    asked by NeeCee
  241. English

    1. Oh, it¡¯s on aisle 6, next to the coffee. 2. Oh, it¡¯s in aisle 6, next to the coffee. 3. Where can I find a dark chocolate bar? It's in Aisle 3. 4. Where can I find a dark chocolate bar? It's on Aisle 3. (Do we have to use 'in' or 'on' before

    asked by rfvv
  242. algebra

    evaluate 15^(2log base15(9))

    asked by molly
  243. english

    how to write a formal letter about declining population of animals in the hills

    asked by talati
  244. physics

    How much work must be done on a 8.0 kg ball to give it a velocity of 36 m/s?

    asked by Anonymous
  245. calculus

    ç(3x+2) dx

    asked by Courtney
  246. SS

    Hi sue, I need idea on how to answer question. What exactly are they looking. Do I take sides saying how the British ruled?

    asked by Michael
  247. biology

    a disease caused by a bb gene is said to be?

    asked by denis
  248. physics

    how long does it take a boy to walk 430 m if he walk at a rate of 40 m/hr ? please answer in minutes

    asked by yani
  249. math calculus module 4

    in this question paranthases are correct,just in this 10 has power 4.please i neede this early.its frm combination and permutation of probability. 10^4C(25,5) ____________ 7!P(30,4)

    asked by Furzeen
  250. Chemistry

    why is oxygen important for life? Why is Nitrogen important for life? please help me :D

    asked by please help please
  251. arithmetic

    the sum of the first 8 term of an arithmetic progresion is 220,if the third term is 17.Find the sum of the first 6 items

    asked by mike
  252. physics

    Two rocks sitting in the field are 200m apart. If the two rocks have a mass of 75Kg and 100Kg respectively, what is the gravitional force between them? Answer now pls!!

    asked by Kayla
  253. maths

    Solve the following 2nd order differential equation explicitly by expanding up to order x5, y''(x) = (1 + x^2)*y(x) pls show working y =f(x)

    asked by ryan j
  254. 3rd grade math

    We have figured out answer BUT we cant figure out the steps to get it During gym class, the teacher gave students a number as they stood in line she counted 1, 2 and 3 then 1, 2 and 3 ...... What number did 22 second person get?

    asked by daniel's mom
  255. Math equation

    y = -1/2 x-4 Complete the table for this equation. x y (x,y) -1 -2 -4 2 8

    asked by Dennis
  256. Algebra

    In January sales were 2.08 million. Write the sales for January in standard notation and scientific notation. please help

    asked by chelsea brown
  257. physics

    What is centripetal force

    asked by Shamsuddeen
  258. 5TH GRADE MATH

    I NEED HELP FINDING THE VARIABLE FOR THE FOLLOWING:57-BLANK-BLANK-33-BLANK-17

    asked by MAYA
  259. math

    List at least one way in which an acute triangle and an obtuse triangle are different.

    asked by tom
  260. algebra

    write an expression that givs the total cost to test x animals. the problem is the cost for a station is $1675 for set up costs and 4.00 to adminmister each test

    asked by Anonymous
  261. English

    I left out a few more sentences I'm really doubful about. Thank you very much for helping me. 1) In the summer my village is very lively. There are a lot of tourists who spend their holiday in bed and breakfasts and go to restaurants. 2) You didn't vary a

    asked by Henry2
  262. 3 grade math

    if a man cut grass in 6 hour , another man cut in 12 hour , how many hour ther were both spend if they cut grass toghter. answer 9 hour or 4 hour

    asked by hiba
  263. ss

    write a pisition paper explaingin how british policies spurred the growth of represenative governement during the colonial period

    asked by michael
  264. physiology

    if the isotonic solution in our body reduces like near to negligible then what would be the effect will it make on hematocrit concentration will it also become low and why?? please answer fast

    asked by harry
  265. world history

    compare&contrast the present day law with the previous law of hammurabi

    asked by Anonymous
  266. math

    how do u do lost digits?? my son has to do this for homework and we are both stuck on how to do this.

    asked by melissa
  267. physics

    what is the force of gravity on a mass of o.5kg hanging by a string in a beaker of water

    asked by kendra
  268. Math

    what is a example of interest?

    asked by amber
  269. English

    Hello. I'll really appreciate some help. Do you think it's possible (and natural) to use "declaim" in the sentence "Thousands of people were declaiming in support of the incumbent president"? Thank you.

    asked by Ilma
  270. england history

    how affective were mediaeval doctors?

    asked by Anonymous
  271. math

    okay a rectangular garden is 10 feet long and 3 feet wide . what is the area of the garden include units

    asked by jerri
  272. social studies

    in what ways do the senate an house of representatives work together to pass bills into laws?

    asked by andrew
  273. math

    Find the mean ( average) of these numbers: 800, 540, 400

    asked by jemeia
  274. Geography

    What latin american country is labor intensive and why? I already used Mexico and colombia for a differnt question. Thank you :)

    asked by Samantha
  275. Math

    What is 21% of 41? I think it is 10 but I'm not for sure.

    asked by Lisa
  276. math 3rd grade

    We have figured out answer 1 BUT we cant figure out the steps to get it During gym class, the teacher gave students a number as they stood in line she counted 1, 2 and 3 then 1, 2 and 3 ...... What number did 22 second person get?

    asked by daniel's mom
  277. math

    list the factors of 24

    asked by cheyenne
  278. math

    if 1 glass of orange juice has 120ml how much will be left in raj drinks half of it

    asked by musu
  279. Science

    What mass of potassium iodine should be dissolved in 200 grams of water to make a 3.0 percent solution?

    asked by Jessie
  280. math

    2(9w^2+12wt+4t^2) can you help me factor this?

    asked by Allison Anderson
  281. science

    what is oxegen

    asked by Anonymous
  282. math

    if 16 tablespoons = 1 cup how many tablespoons 3/4 of a cup

    asked by nick
  283. 3rd grade math

    pattern for 2, 6, 5, 9, 8 extended by three numbers 12, 11, 15 is this correct

    asked by daniel's mom
  284. math

    4+9c+3(c+2)

    asked by cassandra
  285. math

    help with M.S. C-31/30

    asked by The Diego
  286. hadith

    Q16:125 “Invite to the Way of your Lord with hikmah & fair preaching & argue with them in a way that is better….” Would not the action of the sahabah potray a dogmatic view of Islam?

    asked by fidah
  287. math

    how do you do one third (h) is less than or equal to 7? do you need to reciprocate the fraction?

    asked by Jay
  288. ordered fields

    prove (3x^2 + 4x-1)/(7x^5+5)>0 is field. can you just prove one of the addition axioms?

    asked by julia
  289. math

    6 x 3/4 =

    asked by james
  290. math

    there are 16 ounces in one pound. how man ounces in 8 lbs

    asked by JUNIOR C