Questions Asked on
February 11, 2013

  1. Math Help Please!!!!

    Natalie picked 135 berries in 15 minutes. If she continues picking at that rate, how long will it take her to pick 486 berries? Explain.

    asked by Bell
  2. calculus

    Consider the given function and the given interval. f(x) = 4 sin x − 2 sin 2x, [0, π] (a) Find the average value fave of f on the given interval. fave = (b) Find c such that fave = f(c). (Round your answers to three decimal places.) c = (smaller value)

    asked by James
  3. Soc. Studies

    How did President Jackson respond to the Supreme Court's ruling in Worcester v. Georgia that Georgia had no right to interfere with the Cherokee? A. He asked Congress to revoke the Indian Removal Act of 1830. B. He appealed the decision on the grounds that

    asked by Cassie
  4. Physics

    A person has a reasonable chance of surviving an automobile crash if the deceleration is no more than 30 "'s." What distance is traveled if the person is brought to rest at this rate from 115 ?

    asked by Daniel Limon
  5. math

    Sally spent $36 and had $12 left. What percent of her money did she spent?

    asked by minecraft
  6. math

    Brent has #3.35 in quarters and dimes. He has 23 coins in all. How many quarters and dimes does he have? Write a system of equations to solve

    asked by Brenna
  7. math

    Write 0.026 As a sum using powers of 10 to show place value

    asked by kim
  8. physics

    A string has a linear density of 8.1 x 10-3 kg/m and is under a tension of 200 N. The string is 2.9 m long, is fixed at both ends, and is vibrating in the standing wave pattern shown in the drawing. Determine the (a) speed, (b) wavelength, and (c)

    asked by natasha
  9. Math

    Number Sense Fabio said that there are 3 times as many people on a basketball team as on a tennis team. Is he correct? Explain why or why not. Tennis--2 players Basketball--5 players Softball--10 players

    asked by Samantha
  10. Math Help Plaese!!!!!!

    Calculate the final price you would pay to buy jacket that originally sells for $65, but is discounted by 40%; you also have to pay 5% sales tax. Explain.

    asked by Bell
  11. geometry

    In the English alphabet, there are 7 capital letters that look the same after being rotated 180∘. Those letters are H, I, N, O, S, X, and Z. How many different 3 letter "words" can be made from these letters such that when the word is rotated 180∘, the

    asked by please help me out!!! please
  12. Math

    A community center has 3 tennis teams and 5 basketball teams. No one is on both teams. How many athletes are there? Tennis---2 players Basketball---5 players Softball---10 players

    asked by Lee
  13. Chemistry

    CONCENTRATION OF NaClO IN COMMERCIAL BLEACH. Bleach comes as 6%(mass/volume) solution of NaClO. Calculate the Molarity of NaClO in bleach to three significant figures ( you need molar mass of NaClO)

    asked by Jessica
  14. chemistry

    a student dissolves 80 mg of a crude product in 4.5 mL( the minimum required) of methanol at 25 deg C . She cools the solution in an ice bath and obtains crystals. The crystals are recovered by filtration and rinsed with 0.5 mL of ice-cold methanol. After

    asked by sara
  15. Chemistry

    Naphthalene combustion can be used to calibrate the heat capacity of a bomb calorimeter. The heat of combustion of naphthalene is -40.1 kJ/g. When 0.8210 g of naphthalene was burned in a calorimeter containing 1,000. g of water, a temperature rise of

    asked by John
  16. Physics

    Which of the following statements about emission spectra is correct? All the lines are evenly spaced. All noble gases have the same spectra. Each line corresponds to a series of wavelengths. All the lines result from discrete energy differences

    asked by physics student
  17. Calculus

    The population of bacteria in one cubic centimeter of the blood of a sick person has been modeled by the function P(t) = 80t(0.86^t) where t is the time, in days, since the person became ill. I was able to answer all of the questions besides, Estimate how

    asked by Jessie
  18. MATH

    Where are the functions f1(x)=|sin(x)| and f2(x) = sin(|x|) differentiable? Use n as an arbitrary integer constant.) f1(x) = |sin(x)| is differentiable for all x ≠______________ f2(x) = sin(|x|) is differentiable for all x ≠______________ No one has

    asked by Selma
  19. math

    the two-way table shows the number of students that do or do not do chores at home and whether they receive an allowance or not. find and interpret the relative frequencies of students in the survey by columns. allowance no allowance total chores-

    asked by Alexius
  20. PHYSICS 2 !!!

    At its normal operating speed, an electric fan motor draws only 10.9% of the current it draws when it just begins to turn the fan blade. The fan is plugged into a 120.0-V socket. What back emf does the motor generate at its normal operating speed?

    asked by HELP !!!!
  21. Statistics- HELP!

    2. The Rathburn Manufacturing Company makes electric wiring, which it sells to contractors in the construction industry. Approximately 900 electric contractors purchase wire from Rathburn annually. Rathburn's director of marketing wants to determine

    asked by Betty
  22. Pre cal

    From a point A is 8.20 meters above level ground,the angle of elevation of the top of a building is 31degrees 20 min and the angle of depression of the base of the building is 12degree 50 min. Approximate the heighth of the building

    asked by john
  23. math

    what is expression 5 factorial equal

    asked by matt
  24. science

    1. Scientists hypothesize that the sun formed ____. (1 point) less than a billion years ago from a cloud of gas and dust less than a million years ago from a chunk of Jupiter 2. Two of the inner planets are ____. (1 point) Venus and Saturn Mars and Venus

    asked by jessie
  25. trig

    As a hot-air balloon rises vertically, its angle of elevation from a point P on level ground d = 140 kilometers from the point Q directly underneath the balloon changes from 15°10' to 29°30' (see the figure). Approximately how far does the balloon rise

    asked by soul pancake
  26. Math

    If 15 baseballs weigh 75 ounces, how many baseballs weigh 15 ounces?

    asked by Wyatt
  27. physics

    The wavelength of the electromagnetic waves is 200 nm. Which of following regions does it belong to? visible light region ultra violet light infrared region x-ray region

    asked by help?
  28. math

    Ms. shoemaker has 35 students in her classroom. Of those students 6/7 are right handed and 4/5 of te right handed students have brown eyes. How many right handed brown eyed students are in the class.

    asked by Jared
  29. standard deviation

    If Professor Wilson found that the test scores of his students had a variance of 4.4, what is the standard deviation? Type a numerical answer in the space provided. Round your answer to the nearest tenth and do not type spaces in your answer.

    asked by racquel
  30. geometry

    Missy and Mussy are very messy sisters. Their dresser drawer consists of 43 white socks, 2 black socks, 23 blue socks and 8 red socks. What is the minimum number of socks they must remove from the drawer to be certain they have four socks of the same

    asked by ARIRIRI
  31. Math

    Josh borrows some money on which he makes monthly payments of $125.43 for 3 years. If the interest rate is 5.4%/a compounded monthly, what will be the total amount of all of the payments at the end of the 3 years?

    asked by Mark
  32. Physics

    A conductor of length 2m carrying a 1.5A current experiences a force of 2.2 N. What is the magnitude of the magnetic field that acts perpendicular to the flow of current in the conductor?

    asked by physics student
  33. - English

    The Arctic region, where winters are long and cold, is home to more than 400 species of flowering plants. Which group of words is an adjective clause in the sentence? of flowering plants where winters are long and cold is home to more than 400 species of

    asked by Anonymous
  34. math

    jewelry marked 14 karat gold is 14/24 pure gold. what is the percent

    asked by Joseph
  35. mathematics

    a boat sails 150km on a bearing of 42 degree and then 250km due east.how far is the boat from the starting point.

    asked by victoria
  36. Biochemistry

    The Go’ value for the hydrolysis of glucose-6-phosphate is -13.8 kJ/mol. Assuming a concentration of 4 mM for this molecule, what would the phosphate concentration be at equilibrium (G = 0). Remember to convert kJ to J.

    asked by Lena
  37. physics

    A particle with a charge of -5.0 μC and a mass of 4.3 x 10-6 kg is released from rest at point A and accelerates toward point B, arriving there with a speed of 18 m/s. The only force acting on the particle is the electric force. What is the potential

    asked by Anonymous
  38. physics

    A basketball player can leap upward 0.69 m. What is his initial velocity at the start of the leap?

    asked by
  39. Analytic Geometry

    Find the equation of the parabola through (-15/4 ,2) and (0,-1) whose axis is parallel to the x-axis and the latus rectum equal to 4

    asked by xavier
  40. Physics

    A freight train has a mass of 1.2 107 kg. If the locomotive can exert a constant pull of 8.4 105 N, how long does it take to increase the speed of the train from rest to 88 km/h?

    asked by Kayka
  41. Abnormal Psychology

    Who was the founder of the Psychoanalytic paradigm? Freud or Kraepelin?

    asked by Amy
  42. Lang. Arts

    Based on what you have read so far, what is the one thing that always changes when a scene changes in The Diary of Anne Frank? A.the Franks’ reason for hiding B.the passage of time C.the use of voiceover for Anne’s diary I think it is B...? Thanks

    asked by Cassie
  43. physics

    Can someone please explain to me why or how this statement is true? I don't understand it.. Two events that are simultaneous in one inertial frame of reference will not necessarily be simultaneous in any other inertial frame of reference. Thank you

    asked by kayla
  44. physics

    what frequency and period would be required for sally and her hard-working partner to produce a standing wave with three nodes?

    asked by Anonymous
  45. Finance

    You (or your parents) plan to pay $1,275.00/month for a mortgage. How much is the minimum realized income per month to the nearest penny

    asked by samantha
  46. World history; Check:P

    What is the significance of the twelve tablets The Twelve TABLES were significant because they were an early example of written law displayed publicly for all who could read them, another example being Hammurabi's Code What measures did the government take

    asked by Unknown
  47. Physics

    A feather is dropped onto the surface of the moon. How far will the feather have fallen if it reaches the surface in 9.00 seconds? Given: g on moon = -1.63 meters/second2

    asked by Moriah
  48. Algebra

    Find the degree of each monomial -3

    asked by Candy
  49. Math rem

    2.Find the length of the arc in a circle if the radius of the circle is 24cm and the degree of the arc is 90o 3.Find the length of the arc if a circle if the degree if the arc is 120o and the length of the radius is 8cm. 4. A circle has a radius of 7. Find

    asked by bs
  50. science helppp.

    4. Small pieces of rock that enter Earth's atmosphere at speeds of 15 to 70 km/s and burn up are called ____. (1 point) stars meteors meteorites asteroids

    asked by jessie
  51. geometry

    Missy and Mussy are very messy sisters. Their dresser drawer consists of 43 white socks, 2 black socks, 23 blue socks and 8 red socks. What is the minimum number of socks they must remove from the drawer to be certain they have four socks of the same

    asked by ARIRIRI
  52. physics

    A swimmer is capable of swimming at 1.4m/s in still water. Calculate the following. i. How far downstream will he land if he swims directly across 180m wide river? ii. How long will it take him to the other side.

    asked by Ashman
  53. math

    describe a model that represents 3/3 x 4/4 I need to explain this

    asked by Jared
  54. Biochemistry

    1. Given the following equation: Glycerol-3-phosphate glycerol + Pi Go’ = -9.7 kJ/mol At equilibrium the concentrations of both glycerol and inorganic phosphate are 1 mM. Under these conditions, calculate the final concentration of glycerol-3-phosphate.

    asked by Angela
  55. Physics

    The maximum current in an AC circuit is 3.0 Amperes. What is the rms value of the current in the AC circuit? ...Thanks!

    asked by Physics fail
  56. Math

    Josh has a job walking dog.he walks a total of 18 dogs each week. Today,he is walking one third of the dogs.how many dogs is josh walking today?

    asked by Pietro
  57. english

    What is the adjective in the sentence "The red truck was parked behind the garage"? A. red B. truck C. behind D. parked

    asked by amanda
  58. physics

    charge A has a charge of 2C, Charge B has a charge of -3C and is located 1 meter to the right of A. Charge C is located 1 meter to the right of charge B and has a charge of -1C. if a fourth charge (charge D) is placed 4 meters to the right of charge B, how

    asked by chris
  59. World history; Check:P

    What contributions did Solon and Cleisthenes make to the development of Athenian democracy?Solon let all Athenian citizens participate in the Assembly and Cleisthenes created the Council of Five Hundred. What steps did Pericles take to strengthen democracy

    asked by Unknown
  60. Chem Help!!!!!

    The angle iron pictured here is made of steel with a density of 7.78g/cm^3. (Figure 1) measurements are: 12.78cm 10.26cm 1.35cm 2.75cm 1.35cm

    asked by Lisa
  61. Math

    Tricia spent $12 to rent ice skates. She rented them for 4 hours. Which number sentence can you write to find how much it costs to rent skates for one hour?

    asked by Jaylen
  62. math

    Each of two observers 475 feet apart measures the angle of elevation to the top of a tree that sits on the straight line between them. These angles are 55° and 59°, for observers A and B, respectively. How tall is the tree? How far is the base of its

    asked by rachel
  63. Chemistry

    A solution contains a mixture of pentane and hexane at room temperature. The solution has a vapor pressure of 235 torr. Pure pentane and hexane have vapor pressures of 425 torr and 151 torr, respectively, at room temperature. What is the mole fraction

    asked by Emma
  64. physiiics

    Which of the following is correct for the two coherent light waves to produce zero light? The light waves should travel in perpendicular directions. The light waves are in phase with each other The light waves are out of phase with each other. The light

    asked by ooommgggg
  65. math

    A water system of 2 in.(inside diameter) pipe, having a length of 1/4 mile, is to be flushed with a volume of water equal to twice that contained in the system. how much water (gallons) must be flushed through the system? (note: one cubic foot=7.481gal.)

    asked by Wilfredo
  66. Geometry...

    The angle of elevation of the sun at 10:00 a.m. is 29 degree. At this point, a tree shadow's is 32 feet long. How tall is the tree? IS THE ANSWER 15.5 FT?

    asked by Anonymous
  67. math

    A certain sweepstakes ticket has four categories of prizes with the following probabilities of being won: Prize Probability $100,000 1/500,000 $50,000 1/250,000 $20,000 1/200,000 $10,000 1/100,000 What is the expected value of buying these sweepstakes

    asked by Tina
  68. math

    The perimeter of a rectangular playground is 40 yards. It is 1.5 yards longer that it is wide. What is area of playground?

    asked by Zoe
  69. Math

    How could I find the volume of a bowling pin using geometry and or calculus?

    asked by Anonymous
  70. CIS logic and design

    pseudocode that requests and receives student names and an exam score for each

    asked by dddiii
  71. Math

    Maria bought 5 cans of tennis balls. Each can contained 3 tennis balls. How many tennis balls did Maria buy altogether?

    asked by Mark
  72. College Physics 2

    A parallel-plate air capacitor is made from two plates 0.250 m square, spaced 0.70 cm apart. It is connected to a 140 V battery. a) What is the capacitance? C = 7.90×10−11 F b) What is the charge on each plate? Enter your answer as an absolute value of

    asked by Lisa
  73. life orientation

    what according to the basic condition of employment Act applies with regard to the contravetion tha i identified?

    asked by nolwazi
  74. Math

    Number Sense Fabio said that there are 3 times as many people on a basketball team as on a tennis team. Is he correct? Explain why or why not. Tennis--2 players Basketball--5 players Softball--10 players

    asked by Ann
  75. physics

    A proton and an electron enter perpendicular to the direction of the magnetic field. The speed of the proton is twice the speed of the electron. What is the ratio of the force experienced by the proton to the electron?

    asked by kayla
  76. World History- (Ms. Sue).

    What is the significance of the Hudson River school?

    asked by Victoria
  77. chemistry

    A 0.10-mol sample of H2(g) and a 0.10-mol sample of Br2(g) are placed in a 2.0-L container. The reaction H2(g) + Br2(g) 2 HBr(g) is then allowed to come to equilibrium. A 0.20 mol sample of HBr is placed into a second 2.0-L sealed container at the same

    asked by Adam
  78. math

    the volume of a triangular prism is 226.08 cubic inches. if the area of the base is 28.26 square inches, what is the height of the triangular prism?

    asked by kassie
  79. Anonymous

    A motorboat whose speed in still water is 2.86 m/s must aim upstream at an angle of 25.4 degrees (with respect to a line perpendicular to the shore) in order to travel directly across the stream.What is the resultant speed of the boat with respect to the

    asked by Anonymous
  80. Math

    A person jumps off a 20m high cliff into the water below. The height of the person above the ground at t time seconds is given by the equation h=-5t^2+30. How long does it take the person to reach the half way mark to the water?

    asked by Anonymous
  81. Business Math

    Last week, Laurie Golson packaged 289 boxes Holiday Cheese Assortment. Find her gross weekly earnings if she is paid at the following differential piece rate. Boxes packaged Pay per package per week 1-100 $1.88 101-300 $2.08 301 and over $2.18 I don't know

    asked by tmouery
  82. World History- (Ms. Sue).

    What is the significance of nativists?

    asked by Victoria
  83. Chemistry

    C6H14 + 19/2 O2 -> 6 CO2 + 7H2O delta H = -4163 kJ What mass of hexane is required to produce 1.0E5 kJ of heat by complete combustion? -4163 kJ/mol x mol C6H14 = 1E5/-4163 kJ/mol Mol = 1E5/-4163 kJ/mol Mol = -24 mol I know I can do m=n x MM now, but

    asked by A Canadian
  84. math

    adam read a 360 page book in 3 days. he read twice as many pages on the middle day as he did on the first day or the last day. how many pages did he read on the last day.

    asked by reece
  85. Science!

    How many grams of NH3 gas can be made if 42.0 g of N2 gas and 12.0 g of H2 gas react with each other? N2 + 3 H2 ↔ 2 NH3

    asked by Jacob
  86. math

    Brittany is making trays of fudge. her recipe calls for 2/3 cup of walnuts for each batch of fudge. How many cups of walnuts does she need to make 27 batches of fudge I need to show how I got this answer

    asked by Judy
  87. chemistry

    what volume of a concentrated HCl solution which is 36% HCl by mass and has a density of 1.179g/ml should be used to make 5.30L of an HCl solution with a pH of 1.8?

    asked by Anonymous
  88. Physics

    A lamp hangs vertically from a cord in a descending elevator with a constant deceleration a. If the tension in the cord is T0, answer the following. (Use any variable or symbol stated above along with the following as necessary: g.) (a) What is the lamp's

    asked by Rachel
  89. intro to physical science

    the specific heat of granite is 0.80 KJ/kg . c. I f 1.6 MJ of heat are added to a 100-kg granite statue of James Precott Joule that is originally at 18 C, what is the finale temperature of the statue

    asked by Chris
  90. Chemistry

    Determine the boiling point(bp)of 0.44 m Naphthalene, C10H8, in Benzene, C6H6. kb(C6H6)=2.53, bp(C6H6)=80.1

    asked by Shelly
  91. A2 Chemistry

    This question is about the unnecessary production of carbon dioxide Outdoor flames, such as patio heaters and the Olympic flame, contribute to global warming. This is not only due to the heat released, but also due to the carbon dioxide produced from the

    asked by Chris
  92. math

    sarah has a bag of mixed lollies.T?he bag contains toffees,mints,fruit drops,smarties,jelly beans,candies and licorice.She allows everyone in her class to choose 3 lollies,but they must not choose more than one of each kind.How many different combinations

    asked by karen
  93. math

    A certain sweepstakes ticket has four categories of prizes with the following probabilities of being won: Prize Probability $100,000 1/500,000 $50,000 1/250,000 $20,000 1/200,000 $10,000 1/100,000 If each ticket costs $1.00, what is the expected gain or

    asked by Tina
  94. Math Word Problem Help

    Your high school is having a spring carnival. Admission into the carnival is $3 and each game inside the carnival costs $.50. Write an inequality that represents the possible number of games that can be played having $20. What is the maximum number of

    asked by Betty Anne
  95. math

    A model of a boat is 1 3/8 feet long. How long is the model of a ship that is 3 times as long, I'd the models are made to the same scale?

    asked by Alison
  96. Lang. Arts Help

    What do you learn from the dialogue between Mr. Frank and Miep at the beginning of Scene 1? A.Miep wants to show Mr. Frank something in the building. B.Mr. Frank wants to live in this building to hold on to his memories. C.The war has ended, but Mr. Frank

    asked by Cassie
  97. math

    What is the compound amount and compound interest of $15,000 invested at 6% compounded quarterly for 27 months?

    asked by YOU
  98. maths

    from a point R,300M north of P, a man walks eastwards to a place Q which is 600m from P. find the bearing of P from Q correct to the nearest degree

    asked by favs
  99. Business Calculus

    Pam and Tim decide to start saving money for their daughter's college education. They open a college savings plan (529) with a 500 dollars initial investment and next month start to make monthly deposits of 120 dollars. If the account pays 8% compounded

    asked by cs94
  100. Math

    Where are the functions f1(x)=|sin(x)| and f2(x) = sin(|x|) differentiable? Use n as an arbitrary integer constant.) f1(x) = |sin(x)| is differentiable for all x ≠______________ f2(x) = sin(|x|) is differentiable for all x ≠______________

    asked by Amka
  101. Math

    The diameter is 9.3 meters what is the circumference and area?

    asked by Nicole
  102. World history; Check:P

    I can't seem to understand what this question is asking, but I have tried to answer it. Can someone check it please? :) Why were the epics of importance to the Greeks of the Dorian period? Answer: The Dorians were far less advanced than the Mycenaeans. The

    asked by Unknown
  103. 7th Grade Math

    The area of a certain rectangle is 288yd^2.the perimeter is 68yd.if you double the lengths and widths,what will be the new area and perimeter of the new rectangle be?

    asked by Alayah
  104. Physics

    A thin 5.4-m metal rod sustanins a longitudinal standing wave with vibration antinodes at each end of the rod. There are no other antinodes. The density and Young's modulus of this metal are, respectively, 5200 kg/m^3 and 7.9x10^10 N/m2. What is the

    asked by Patrick
  105. business

    How does managers benefit from developing three different budget estimates for the same time period?

    asked by zohdi
  106. Physics Help

    Charge is distributed uniformly along the x axis with density ßx and uniformly along the y axis with density ßy. Calculate the electric field at the points (a) r = a i + b j, and (b) r = c k.

    asked by Lindsey
  107. accounting

    Suppose that two years after the bonds were issued, the required interest rate fell to 7 percent. What would be the bonds’ value?

    asked by lisa
  108. Math

    A survey reported that out of 50 teenagers, 9 said they get their news from a newspaper. At this rate, how many out of 300 teenagers would you expect to get their news from a newspaper?

    asked by jenn
  109. auditing

    Bill Jensen, a staff member of Zhan & Co., CPAs, has given you the following list of what he refers to as “internal control deficiencies” for the Zabling Co. audit and has asked you to review each point and make certain that you agree that each is an

    asked by Anonymous
  110. Math

    Nata spent $28 on 2 DVDs. At this rate, how much would 5 DVDs cost?

    asked by jenn
  111. chemistry

    The volume of a gas at 23◦C and 0.13 atm is 73 mL. What volume will the same gas sample occupy at standard conditions? Answer in units of mL

    asked by Anonymous
  112. math

    Andrea buys four shirts and three pairs of pants for $85.50. She returns the next day and buys three shirts and five pairs of pants for $115.00. What is the price of each shirt and each pair of pants? How would I solve this? I need to show my work...

    asked by ki
  113. Physics HELP PLEASE

    If 10-kg of ice at 0 degrees Celsius is added to 2-kg of steam at 100 degrees Celsius, the temperature of the resulting mixture is? Use Joules. ANSWER: 40 Specific Heats: Ice = 2060 Steam = 2020 Latent Heats: Water melting = 3.33x10^5 Water boiling =

    asked by Max
  114. Chemistry

    CHemical equation showing how NH3 behaves as a base when dissolved in water

    asked by Ken
  115. Lang. Arts

    Which sentence is punctuated correctly? A.Greg’s family adopted a young active puppy. B.Lisa filmed two, dramatic movies this year. C.Meg heard there is an unusual, exciting show tonight. I think it is A or C...leaning towards A?

    asked by Cassie
  116. Analytic Geometry

    A parabola has a directrix y=-3, axis =4 and latus rectum equal to 2. find its equation. Please help me its for my homework

    asked by Lance
  117. math

    d equals 4 and 5 eighths inches where 1 half inch equals 355 miles

    asked by jerri
  118. Math

    Find the values of the six trigonometric functions for ∠A in standard position determined by the point (63, 280). Enter your answers as fractions.

    asked by Anonymous
  119. english

    More than a thousand people are killed in road accidents during the december hoildaeys how can this carnage on our road be stopped?

    asked by refilwe rere
  120. World History- (Ms. Sue).

    What is the significance of steerage?

    asked by Victoria
  121. clackamas

    Consider a $100 investment earning 12% compounded quarterly. How long will it take to triple your money? Round your answer to the nearest tenth of a year.

    asked by Anonymous
  122. maths

    A coin is tossed M+N times,M>N,then the chance of getting at least consecutive head is

    asked by Anonymous
  123. Math

    Jake ate seven times more jelly beans as Sam. Together they ate 128 jelly beans. How many jelly beans did each person eat?

    asked by Tanya
  124. math

    diane works at a public university and contributes $625 per month in her retirement fund. the fund returns 3.84% a year, compounded monthly. how much will she have in her account after 15 years. b. the economy gets better and the return is 7.72%. So now

    asked by ken
  125. math

    study the function table below vases flowers 4 12 7 21 8 24 11 33 v f which expression could be used to find the number of flowers (f) in (v) vases? my answer is a. is that correct

    asked by vera
  126. Probability Word Problem

    Julie has three choices of a lunch and 4 choices of a drink. How many different ways can she choose a lunch and a drink?

    asked by Betty Anne
  127. calculus

    Find the Derivative y=(t^2+3)e^t

    asked by Mike
  128. chemistry

    help please, have no clue how to solve this. (a) you are given a mixture containing two compounds, A and B. both compounds have a solubility of 1g/100mL of solvent at 20 deg C and 16g/100mL of solvent at 100 deg C. The sample is composed of 3.5 g of A and

    asked by shelby
  129. Science

    which of the following is a function of DNA 1)controlling the production of proteins in the cell 2)breaking down proteins in the cell 3)producing energy from food molecules inside the cell 4)controlling substances that enter and leave the cell 5)joining

    asked by Freeman
  130. Maths Percentage

    After spending 30% of his money, John had $140 left. How much did he have at first. Siti and Ali saved $4500. Ali and Jim saved $2950. Siti saved thrice as much as Jim. How much did Ali save? At a concert, there were 15 more children than adults. Each

    asked by Zayn
  131. Physics

    Situation: While holding his rifle at shoulder-level, a 1.8 meter tall hunter accidentally discharges it straight up into the air. Questions: 1) If the bullet exits the barrel of the rifel at 200 meters per second squared, how many seconds does the hunter

    asked by Krishen
  132. math

    (1)Robert is thinking of two numbers. Their greatest common factor is 6. Their least common multiple is 36. One of the numbers is 12. What is the other number Answer: 18 please help Ms.Sue I think the answer is right not sure how I got it please explain or

    asked by Camile
  133. maths

    What is the value of 321 rounded up to the nearest 10?

    asked by please help me out!!! please
  134. Math

    Because of an anticipated rainstorm, the water level in a reservoir must be lowered by 1 foot. Opening spillway A lowers the level by this amount in 4 hours, whereas Opening spillway B does the job in 6 hours. How long will it take to lower the water level

    asked by Beth
  135. Chem help

    Radiowaves travel at the speed of light, which is 3 X 10^8 m/s. If a certain radio station broadcasts at a frequency of 1191 kHz, what is the wavelength of these waves? in meters? C=lamda V lamda= v/c so 1191/3e8 but it doesnt work..?

    asked by Thad
  136. maths-urgently needed

    If in a triangle ABC, c(a+b) Cos B/2 =b(c+a) Cos C/2 then the triangle is :- 1. isosceles 2. Right angled 3. isosceles or right angled 4. none of these I want the explanation

    asked by Anonymous
  137. Java progamming 1

    I want the program to ask for and get the price of a book from a user. The program will then multiply the price by 7% sales tax and display both the sales tax and final price of the book (price + sales tax) on the screen. using Netbeans

    asked by newton
  138. Chem

    What mass of protons would be required to just neutralize the charge of 3.5 of electrons?

    asked by Brandi
  139. Chem

    What mass of protons would be required to just neutralize the charge of 3.5 of electrons?

    asked by Brandi
  140. physics

    Imagine a spring floating in space. This spring has a very small length when it is unstretched. The spring constant for this spring is 4.2 N/m. Now place 2.6 μC charges on each end of the spring, and allow it to stretch until it reaches a new equilibrium.

    asked by Noah
  141. Math Word Problem

    Tristen mixes nuts that cost $2.00 per pond with nuts that cost $4.00 per pound. He buys triple as much of the $2.00 per pound nut than he buys of the $4.00 per pound nut. If he spent a total of $32.00, how many pounds of the $2.00 per pound nut did he

    asked by Betty
  142. Math

    Write a number sentence. Marshall sleeps 8 hours each day. How many hours does Marshall sleep in one week? How many hours is Marshall awake each day?

    asked by Steve
  143. math

    Flag question Question text A fair coin is tossed 6 times. What is the probability to the nearest hundredth of obtaining at least one head? Select one: a. .08 b. .98 c. .50 d. .02

    asked by Tina
  144. Math

    How would I solve equations with variables on both sides? Please help!

    asked by Tanner
  145. math

    The perimeter of a rectangular playground is 40 yards. It is 1.5 yards longer that it is wide. What is area of playground?

    asked by Zoe
  146. English/Lang. Arts

    Many Jewish people, like Anne’s family, hid to escape Nazi persecution during World War II. In what other way did people attempt to save themselves?A.They asked the Nazi party for protection. B.They fled to North and South America. C.They signed

    asked by Cassie
  147. Statistics

    Research design is an area where researchers collect various data to address important questions. For example, if researchers wish to find characteristics of people most likely to develop lung cancer, they will have to collect appropriate data first.

    asked by Betty Anne
  148. org. chem

    Draw the acetal obtanined from 1-propanol and benzaldehyde Draw the ketal obtained from 2-propanol and 3-methylcyclpentanone Can someone tell me where the actal/ketal comes from or do I just add it to the equation. Not sure how to start this. Thanks :)

    asked by meghan
  149. geometry

    A semicircle has AB as the endpoints of its diameter, and AB=80. Points C and D are on the circumference of the semicircle such that AD=BC=40. What is the length of DC?

    asked by ARI33
  150. English

    Hello. I'll be very grateful for some help again. Do you think it's OK to use "resolve" in the present perfect continuous tense, for example: "they have been resolving the problem for several weeks"? Thank you very much for all your answers.

    asked by Ilma
  151. Gen Chem II

    Thanks for the information Dr. Bob. Would you be able to work it out so that I can actually see the steps with the numbers and follow from there. The question was on Vitamin K from Sunday at 2:44pm which you answered at 3:45pm. Thanks again. I am looking

    asked by Nefret
  152. algebra

    Sort these numbers describe your sort rule 5, 10, 16, 19, 24, 37, 40

    asked by rayan
  153. Chemistry

    Consider 54.0 mL of a solution of weak acid HA (Ka = 1.00 10-6), which has a pH of 4.200. What volume of water must be added to make the pH = 5.500? I found HA for both and then I used C1V1 = C2V2 plugging in the concentrations of HA in C1 and C2 and 0.054

    asked by Ter
  154. math

    a ribbon is 45 cm long is cut into 2 pieces one piece is 4 times longer then the other find the length in cm of both ribbons

    asked by chris
  155. maths-urgently needed

    If in a triangle ABC, c(a+b) Cos B/2 =b(c+a) Cos C/2 then the triangle is :- 1. isosceles 2. Right angled 3. isosceles or right angled 4. none of these I want the explanation

    asked by Anonymous
  156. business

    how does the term balance sheet reflects the organization of information in the financial statements?

    asked by zohdi
  157. World History- (Ms. Sue).

    Prejudice is significant because it was what immigrants had to face due to the native-born Americans' fears?

    asked by Victoria
  158. business finance

    If i invested 10,000.00 in a bank CD that pays a 6% annual interest. How much will the CD be worth at the end of five years

    asked by elh009
  159. World History- (Ms. Sue).

    What is the significance of the push-pull factor?

    asked by Victoria
  160. World History- (Ms. Sue).

    What is the significance of transcendentalism?

    asked by Victoria
  161. english

    Which is the correct MLA citation for a magazine article? (1 point) Brian Carson. “The Real Story Behind Bigfoot.” Myths and Legends Mar. 2010: 20. Print. Carson, Brian. “The Real Story Behind Bigfoot.” Myths and Legends Mar. 2010: 20. Print. Brian

    asked by qasw
  162. math

    Peter wants to wear a 3 piece outfit .In the wardrobe he has a white shirt and a blue shirt,a pair of brown trousers,a pair of black trousers and some blue jeans.He has a cashmere coat and a windcheater.How many different 3 piece outfits can he wear? Is it

    asked by karen
  163. PHYSICS

    At its normal operating speed, an electric fan motor draws only 10.9% of the current it draws when it just begins to turn the fan blade. The fan is plugged into a 120.0-V socket. What back emf does the motor generate at its normal operating speed?

    asked by PLEASE HELP
  164. Math

    Write a number sentence. Marshall sleeps 8 hours each day. How manu hours does Marshall sleep in one week? How many hours is Marshall awake each day?

    asked by Princess
  165. journalism

    I'm using a source, can you see if this makes sense.. It's just a piece of my report I'm writing According to Deisinger, at the last two Project Connect events, KCPRI provided services to over 1,500 participants. The racial breakdown for their November,

    asked by Blaze
  166. Chemistry

    What is sigma framework?

    asked by Linda
  167. Math

    Write a number sentence. Marshall sleeps 8 hours each day. How many hours does Marshall sleep in one week? How many hours is Marshall awake each day

    asked by Sam
  168. org. chem

    The question asks, "draw the hemiacetal obtained by addition of ethanol 2-methylpentanal" My question is how to do this problem? I know you can't actually draw it out on this site. However so I know how to do it on the upcoming test. Thanks :)

    asked by meghan
  169. Calculus

    Find the derivatives of the function k(x)=sqrt(sin(2x))^3 I think I have the answer and was wondering if i had it correct k'(x)=2sin(x)^3+8sin(x)

    asked by Joe
  170. Math

    two sides of a triangle have the ratio of 3:4. The hypotenuse is 20. What are the measures of the two other sides?

    asked by John
  171. MATH

    A camping store put in an order for flashlights and sleeping bags. The number of flashlights ordered was 3 times the number of sleeping bags. The flashlights cost $12.00 each, and the sleeping bags cost $45.00 each. If the total cost for the flashlights

    asked by Betty
  172. engineering

    Anybody knows the quiz3 of coursera "control of mobile robots"?

    asked by asha
  173. MATH

    Posted by xavier on Monday, February 11, 2013 at 8:28pm. Hello... Asking for help with this one math question to understand how to do the rest of related question? thank you in advance.... shape 1 (3.5,-8.5) ,(3.5,-9) , (3,-10.5) , (2,-12)

    asked by xavier
  174. Math

    Next door neighbors Moe and Larry are using hoses from each of their houses to fill Moe's pool. They know it takes 12 hours using both hoses. They also know that Moe's hose, used alone, takes 40% less time than using Larry's hose alone. How much time is

    asked by Beth
  175. Science

    Pluto alters the orbit of which planet? Uranus Saturn Neptune * Jupiter My guess is Neptune? There is not alo of info. that said the word "alters"? Help please....

    asked by Cassie
  176. calculus

    Find the integral of: dx/(x^2-4x)

    asked by Sara
  177. Math (Pre-Cal)

    There is exactly one triangle the length of whose sides are integers in arithmetic progression and whose area is 156 square units. Find the perimeter of this triangle.

    asked by Dan
  178. Math (Pre-Cal)

    The infinite series S = 1/5 + 3/5^3 + 5/5^5 + 7/5^7 + 9/5^9 + ... converges. Find S.

    asked by Andy
  179. Statistics

    Each of 4 people is presented with gourmet coffee and ordinary coffee and asked to identify the gourmet coffee. None of the 4 can really tell the difference and are merely guessing. a.What is the probability that exactly 2 of the 4 correctly identify the

    asked by Steven
  180. geometry

    Three circles, each with a radius of 10, are mutually tangent to each other. The area enclosed by the three circles can be written as ab√−cπ, where a, b and c are positive integers, and b is not divisible by a square of a prime. What is the value of

    asked by ARIRIRI
  181. geometry

    ABCD is a rectangle. On line segment AB, E is a point such that ∠ADE=17∘ and ∠BCE=29∘. What is the measure of ∠DEC (in degrees)?

    asked by emergency!!! 33
  182. englis

    One of the most commonly known_____________ which also happens to be a top favorite of mine is____________. do i need a comma's in this sentence?

    asked by jakey
  183. math

    shape 1 (3.5,-8.5) ,(3.5,-9) , (3,-10.5) , (2,-12)

    asked by xavier
  184. physics

    If a 0.5kg toy car is rolling down a hill with a velocity of 0.8m.s, what is the car's momentum?

    asked by Sarah
  185. Lang. Arts

    Which sentence is punctuated correctly? A.Greg’s family adopted a young active puppy. B.Lisa filmed two, dramatic movies this year. C.Meg heard there is an unusual, exciting show tonight. I think it is A or C...leaning towards A?

    asked by Cassie
  186. college chemistry

    How will the Rf values be affected if i use a highly polar mobile phase instead of one that has intermediate polarity?

    asked by Anonymous
  187. science

    a poem on cell division

    asked by Anonymous
  188. Chemistry

    Someone said, "Calculate the total delta H of the reaction and subtract the total delta H of the product from it. If you get a positive value, it radiates heat which means it's exothermic. If it is negative, heat is needed to get a reaction so it is

    asked by A Canadian
  189. social studies

    after the treaty of paris how long were the Spanish in charge of FL

    asked by brian kolker
  190. Math112

    Perform the indicated operation (8t^2-4+2)-(5t^2-5t+7)

    asked by corinne
  191. math

    Anny is having a party .The first guest arrived by himself.3 guests then arrive together,each successive group arrives with 2 more guests than the group that entered previously.How many guests will have arrived when the twentieth group enters the room ?

    asked by karen
  192. social studies

    what are the main functions of chief minister

    asked by nazia
  193. maths

    Q:20 A clock was 4 minutes slow at noon on Friday and 4 minutes 36 seconds fast on the following Friday at 4 P.M. If the clock gains uniformly, when does it show the correct time? A:8 P.M. on Monday (after second Friday) B:8 P.M. on Monday (between two

    asked by ujjval
  194. Physics

    Two blocks of lead, one twice as heavy as the other, are both at 50 degrees Celsius. The ratio of internal energy of the heavier block to that of the lighter block is? A)1:2 B)2:1 C)1:1 D)4:1

    asked by Cory
  195. Finance

    A rich man has 1 million dollars in the bank earning 7% interest. He plans to give away $100,000 at the end of the year and to increase his gifting by 10% per year thereafter. How long will the million dollars last?

    asked by Anonymous
  196. Lang. Arts

    We hung makeshift curtains in our room using? A.bed sheets. B.old curtains. C.new curtains I think it is A?

    asked by Cassie
  197. Calculus

    A deposit of $1000 is made at the beginning of each month in an account at an annual interest rate of 3% compounded monthly. The balance in the account after n months is An = 1,000(401)(1.0025^n - 1). (a) Compute the first six terms of the sequence {An}.

    asked by Jenny
  198. algebra!

    x is a number such that x2+3x+9=0. What is the value of x3?

    asked by please help me out!!! please
  199. Calculus

    Determine the following about the series. Indicate the test that was used and justify your answer. Sigma (lower index n = 1; upper index infinity) [sin((2n-1)pi/2)]/n A. The series diverges B. The series converges conditionally. C. The series converges

    asked by Jenny
  200. Calculus

    Test for convergence or divergence. Indicate the test that was used and justify your answer. Sigma (lower index n = 4; upper index infinity) 1/(3n^2-2n-15)

    asked by Jenny
  201. pre calc

    How long would it take from 3000 to get to 8000 at 8% interest at compounded quarterly?

    asked by Anthony
  202. Calculus

    Test for convergence or divergence. Indicate the test that was used and justify your answer. Sigma (lower index n = 2; upper index infinity) [ln(n)]/n

    asked by Jenny
  203. arithmetic

    A group of friends are planning a road trip. If they all contributed $24, then they would be $6 short of the total. If they all contributed $25, then they would have $3 more than needed. What is the total cost of the trip?

    asked by please help me out!!! please
  204. Calculus

    Find the values of x for which the series converges. Sigma (lower index n = 0; upper index infinity) [(x+1)/4]^n

    asked by Jenny
  205. Lead

    Hi i'm trying to write a lead for my Journalism class, tell me which works best. If they both need revised can you point it out? In Kalamazoo County unemployment for white people is at 10.2 percent, whereas for black people it is at 21.2 percent, according

    asked by Blaze
  206. Calculus

    Identify the two series that are the same. a. Sigma (lower n = 4; upper infinity) n(3/4)^n b. Sigma (lower n = 0; upper infinity) (n+1)(3/4)^n c. Sigma (lower n = 1; upper infinity) n(3/4)^(n-1)

    asked by Jenny
  207. Calculus

    Find the sum of the convergent series. Sigma (lower n = 0; upper infinity) 8*(4/5)^n

    asked by Jenny
  208. Physics Help

    Charge Q is uniformly distributed around the perimeter of a semicircle of radius R. What is the electric field at the circle's center?

    asked by Lindsey
  209. physics

    The waterfall "Angel Falls" in Venezuela is the world's tallest at h=979 m. Assume that the water's velocity on the top of the falls and on the bottom of the falls (after it hits the ground and begins to flow away) is equal, and that no total energy is

    asked by please help me out!!! please
  210. calculus

    Find the derivatives of the functions k(x)=(x^3+e^x)^4

    asked by Joe
  211. Accounting

    What affect can the incorrect (intentional or unintentional) posting, journalizing, and reporting of financial data have on a company, an accountant, or a company's stakeholders?

    asked by Kathleen
  212. Calculus

    Approximate the sum Sigma (lower n = 0; upper infinity) (17/3)*(-1/2)^n

    asked by Jenny
  213. maths!!!!!!!!!

    If a and b are coprime positive integers such that 1/2+1/3+1/4+1/5=ab, what is the value of a+b?

    asked by please help me out!!! please
  214. chemistry

    what is the specific heat of copper if the temperature of a 100g sample of copper is increased by 23C when 886J of heat is added ?

    asked by Alice
  215. Math

    What are the steps to solve for n?: 50000 = 1000(1 + 0.8)^n

    asked by Jess
  216. World History- (Ms. Sue).

    What is the significance of emigrants?

    asked by Victoria
  217. Pre-Calculus

    Sue is building a triangle out of sticks. The length of the first side is "a" and the second side is of length "b". The length of the third side must be between 8 and 26 units. Find the product of "a" and "b".

    asked by Hannah
  218. math

    what is 3z-5+2z=25-5z

    asked by matt
  219. math

    If the digits of a number may be any one of 0 through 9 (except the first digit cannot be zero), and the system of alternating signs of coefficients is used to create a polynomial, what is the least number m of real zeros the polynomial can have? What is

    asked by Tom
  220. World History- (Ms. Sue).

    What is the significance of famine?

    asked by Victoria
  221. Applied Calculus

    Find the derivative of the function f by using the rules of differentiation. f(x)=340

    asked by Jacob
  222. Physics

    A car travells 20 km due north and then on a bearing of 90 degrees for 12km. Use a scale drawing.

    asked by Kuhle
  223. math

    what is 9/5x20)+32

    asked by matt
  224. English/Lang. Arts

    Which of the following sentences from the article is an example of hyperbole? Here are the examples... A. Ivory-billed woodpeckers still graced the planet. B.According to experts, they need large areas of old-growth forest, including many big, dead trees,

    asked by Cassie
  225. math

    Suppose 8 out of every 20 students are absent from school less than five days a year. Predict how many students would be absent from school less than five days a year out of 40,000 students.

    asked by jenn
  226. math

    jason has 12 coins in his pocket ,he has twice as many nickles as he has quarters how many nickles does jason have

    asked by mahayla
  227. physics

    A crane is used to hoist a 500kg crate vertically at a constant velocity of 4 meters per second. Ignore the effects of friction. a) calculate the magnitude of the net force experienced by the crate b) calculate the magnitude of the force applied by the

    asked by sam
  228. Precalc

    1. Find the exact value 3sin(invertangent (-1)) I got 0. Given 0

    asked by Rebekah
  229. Chemistry

    Someone said, "Calculate the total delta H of the reaction and subtract the total delta H of the product from it. If you get a positive value, it radiates heat which means it's exothermic. If it is negative, heat is needed to get a reaction so it is

    asked by A Canadian
  230. 3rd grade math

    enzo and eric are a sharing a pie. if enzo eats 1/3 of the pie and eric eats 1/5 of the pie, is there more than 1/2 of the pie remaining.

    asked by mythreyee
  231. math

    I need help solving this problem -x-7x=

    asked by Dee Dee
  232. math

    jewelry marked 14 karat gold is 14/25 pure gold. what is the percent

    asked by anynomous
  233. English

    Hello. Please help me with a few questions. 1)Do you think it's possible to use "as expected" in reference to the future, for example: "As expected, they will arrive next week"? 2)Do you think the word combination "to gain a historic triumph over someone"

    asked by Ilma
  234. english

    What does Mrs. Frank think of the idea of Peter being Anne’s boyfriend? She is thrilled that Anne will finally have a boyfriend. She doesn’t really care if Anne has a boyfriend. She is uncomfortable with idea that Anne might have a boyfriend.

    asked by hi
  235. organic chem

    Draw the hemiketal obtained by addition of methanol to 3-methyl-2-hexanone This is what I got: 3-methyl-2-hexanone + CH3OH CH3CH2CH(CH3)CH2C(OH)(CH3). But my answer is line angle formula because that's what the professor wants here's my line formula CH3

    asked by meghan
  236. org. chem

    Can someone explain in simple terms the difference between hemiketal and hemiacetal? Just curious

    asked by meghan
  237. Algebra

    A function is given. Determine the average rate of change of the function between the given values of the variable. f(x) = 6 − x2; x = 2, x = 2 + h

    asked by Jazzy
  238. math

    Englewood averaged 17 problems right on the math decathlon. Avalon park elementary scored an average of 14 problems right. Which equation shows the difference, (d), between the average points scored by gthe englewood and avalon park? a. d=17 x 14 b.

    asked by vera
  239. maths

    What is the vector equation of the line joining the points (5; 0; 1) and (7; 4; 7)?

    asked by Jenny
  240. math

    Decimal numbers with digits both before and after the decimal point, such as 16.75, are referred to as: A. the quotient. B. the remainder. C. mixed decimal numbers. D. decimal point numbers.

    asked by Anonymous
  241. 5ht grade math word problems

    sue baked chocolate chip cookies. although the recipe said it would make 5 dozen, she actually made 4 less than that. if there were slightly more than 500 chips in the package what is the average number of chips for each cookie?

    asked by reeve
  242. english

    In the play Antigone Which character do you think is wholly right in their actions? Wholly wrong? Partially right or wrong? Give reasons for your judgement.

    asked by answerman
  243. calculus

    Find the integral of (tan x)^2 sec(x)dx

    asked by Sara
  244. Math

    4 friends share 3 melons.

    asked by Pietro
  245. Math

    3 classmate share 5 sandwich

    asked by Pietro
  246. math

    I have a piece of rope 3 1/2 ft long. I use 3/4 on a project. How much I have left?

    asked by Anonymous
  247. math

    7/8 x 4/5 = I got 28/40 so is it 7/10

    asked by Judy
  248. Lang. Arts

    Choose the sentence that is punctuated correctly. A.I would like to eat a big breakfast, watch a movie, and lounge on the sofa this Sunday. B.I would like to eat a big breakfast, watch a movie, and lounge on the sofa, this Sunday. C.I would like, to eat a

    asked by Cassie
  249. math

    In how many ways can the grand prize ticket and second prize ticket be selected from 400 tickets?

    asked by joy
  250. gr12 math

    how do you know which face is the base of a triangular prism?

    asked by anonymous
  251. Statistics

    Each of 4 people is presented with gourmet coffee and ordinary coffee and asked to identify the gourmet coffee. None of the 4 can really tell the difference and are merely guessing. a.What is the probability that exactly 2 of the 4 correctly identify the

    asked by Steven
  252. math

    2/3 x 5/6 x 14 =

    asked by Judy
  253. physics

    list and explain 5 locking devices

    asked by favs
  254. Math

    1/3 of 6= 2/5 of 10= 5/5 of 5=

    asked by Pietro
  255. Math

    Beatriz has 8 turtles.two fourths of them are. Box turtles.how many of the turtles are box turtle?

    asked by Pietro
  256. trigonometry

    It is given that sin(θ)=15√. In addition, a and b are coprime positive integers such that cos(2θ)=ab. What is the value of a+b?

    asked by emergency!!! please help!
  257. algebra

    The variables x and y satisfy the equations 2/x−24/y=−1 and 6/x+33/y=2. Find the product xy.

    asked by please help me out!!!
  258. Statistics

    Each of 4 people is presented with gourmet coffee and ordinary coffee and asked to identify the gourmet coffee. None of the 4 can really tell the difference and are merely guessing. a. What is the probability that exactly 2 of the 4 correctly identify the

    asked by Steven
  259. Net ionic reaction

    What is the net ionic equation of MgS04 with Sr(N03)2? I get most of the equation right but i think im missing something...

    asked by Rick
  260. Pre Algebra

    I have to design new dice for a board game. I have to use two standard cubes each with six faces and number then in such a way the the probability of rolling the numbers 1-12 are the same

    asked by SAm
  261. maths

    Two trains A and B 50kms apartare approaching each ather at 30km/hr and 20km/hr respectively. A bee travelling at 80km/hr hovers between d two trains. How many km will d bee cover before d two trains collide

    asked by very urgent please
  262. maths (trig)

    how would you work out tan 50=27/x please help

    asked by random name
  263. math

    how would you figure this problem how much fencing to the nearest foot is neeeded to enclose an area of 350ft2

    asked by jill
  264. chemistry

    a container holds 200 pounds of water or 132 pounds of gasoline. what is the density of gasoline in g/mL? (hint; the density of water was calculated in the early experiment to be 0.962g/mL)

    asked by curious
  265. geometry

    A rectangle has length and width in the ratio of 5:9. If the perimeter is 280, what is the length of the rectangle?

    asked by Anonymous
  266. maths-urgently needed

    If in a triangle ABC, c(a+b) Cos B/2 =b(c+a) Cos C/2 then the triangle is :- 1. isosceles 2. Right angled 3. isosceles or right angled 4. none of these I want the explanation

    asked by Anonymous
  267. science

    a planet has a radius of 5950 km and a value of g at the surface of 8 m/s2. If the planet decides to put a satellite into citcular orbit, what horizontal (orbital) speed must the satellite achieve?

    asked by limeandmango
  268. math

    If x = 15 units, y = 7 units, and h = 4 units, then what is the area of the trapezoid

    asked by Maddie
  269. math

    what kind of book can help me understand about propabilities,please let me know,i am not lazy,but i am really not understand,many thanks

    asked by karen
  270. STATISTICS

    ASSUME THE THE MEAN WEIGHT OF CHILDREN AGES 7 IS 50 POUNDS AND A STANDARD DEVIATION OF 10. wHAT IS THE PROBABLITY THAT A RANDOM SELECTED 7 YEAR OLD WILL HAVE A WEIGHT THAT IS LESS THAT 65

    asked by SONIA GOVAN
  271. Physical Science Help!

    Can someone please help me balance these equations? Thank you for your time!! 1. NO + O2 ¨ NO2 2. NH4Cl + Ca(OH)2 ¨ CaCl2 + NH3 + H2O

    asked by Ella
  272. intro to physical science

    what is the Celsius equival of a temperature of 160 F

    asked by Chris
  273. Math

    A 7 4/5 ounce can of cat food costs 38 cents. What is the unit rate (price per ounce) of the cat food?

    asked by J
  274. Lang. Arts

    Which of the sentences below is punctuated correctly? A. I opened the door and my cat ran outside. B. I opened the door, and my cat ran outside. C.I opened the door, my cat ran outside I think it is A?

    asked by Cassie
  275. Calculus

    Determine the convergence or divergence of the series. Find the limit. Indicate the test that was used and justify your answer by showing evidence why the test succeeds or fails. Sigma (lower index n = 1; upper index infinity) 12/[n(n+3)]

    asked by Jenny
  276. Math

    In Ms.Ramirez's class, there are 28 students. They sit in 4 rows. How many students are in each row?

    asked by Shaun
  277. geometry

    Let O be the center of the circle Γ, and P be a point outside of circle Γ. PA is tangential to Γ at A, and PO intersects Γ at D. If PD=14 and PA=42, what is the radius of Γ.

    asked by please help me out!!! please
  278. Calculus

    Use the Direct Comparison Test to determine the convergence or divergence of the series. Justify your answer and show all of your work. Sigma (lower index n = 1; upper index infinity) 4^n/(3^n-1)

    asked by Jenny
  279. Calculus

    Determine the convergence or divergence of the series. Indicate the test that was used and justify your answer. Sigma (lower index n = 1; upper index infinity) [(-1)^n*3^n]/(n*2^n)

    asked by Jenny
  280. Math

    how to solve polynomiels?

    asked by Sam
  281. nothing

    can anyboby help me with that last question i posted pleaseeeee i really need help!!!

    asked by kassie
  282. Calculus

    Determine whether the sequence with the given nth term is monotonic. Find the boundedness of the sequence. Otherwise, indicate DNE. An = ne^(-n/2)

    asked by Jenny
  283. math

    If x=12 and y=14 .Find the value of (x+y)^x/y ????

    asked by tuhituhi
  284. physics!!!!!

    When the distance between the hole and floor is h1=20 cm, the images's length is l1=20 cm; when the distance between the hole and floor is h2=40 cm, the images's length is l2=36 cm . What is the length L of the ceiling lamp in m?

    asked by please help me out!!! please
  285. math

    1/4x + 13 > .25(2x-32)

    asked by Bob
  286. physics

    A few years ago, a movie came out about a soldier, John Carter, who was transported to Mars and could perform amazing feats of strength and jumping due to the lower Martian gravity. The surface gravity of Mars is 0.38 times that of earth. If John could

    asked by please help me out!!! please
  287. Math

    Please someone help with my pre calc question!

    asked by Anthony
  288. Physics Help

    An electron with velocity v = 2.4 × 106 m/s i encounters an electric field E = 1250 N/C i. How long will it take for the speed to be one fourth its original value?

    asked by Lindsey
  289. Calculus

    What is the graph of the sequence An = (-1)^n?

    asked by Jenny
  290. maths

    how to calculate 36^6/7 ???

    asked by tuhituhi
  291. quick chem

    Which of the following wavelengths of light has the highest energy? 1. 10 mm 2. 650 nm 3. 10 µm 4. 0.1 nm 5. 10 cm

    asked by Thad
  292. Chemistry

    When you have 250. mL of a 2.80 M solution of HCl, how many moles of HCl do you have

    asked by Kay
  293. chem

    Given the following wavelength of light, calculate the energy of one photon in Joules. λ = 1 x 10^0 meters what does it mean? i don't know what to do or how to solve

    asked by will.i.am
  294. World History- (Ms. Sue).

    Famine is significant because it forced several immigrants to emigrant to America and flee their homelands?

    asked by Victoria
  295. World History- (Ms. Sue).

    What is the significance of immigrants?

    asked by Victoria
  296. Math

    Next door neighbors Moe and Larry are using hoses from each of their houses to fill Moe's pool. They know it takes 12 hours using both hoses. They also know that Moe's hose, used alone, takes 40% less time than using Larry's hose alone. How much time is

    asked by Sue
  297. business finance

    Kate Eden received a graduation present of $5,000 that she is planning on investing in a mutual fund that earns 6.00 percent each year. How much money can she collect in three years

    asked by elh009
  298. math

    I need help with 40% equal x/30 what is x.

    asked by matt
  299. Applied Calculus

    Find the derivative of the function: f(x)=(x^2+9)/square roote of x

    asked by Jacob
  300. math

    can someone please explain to me what happens to the mean and standard deviation of the distribution of sample means as the size of the sample decreases?

    asked by kacie
  301. World History- (Ms. Sue).

    What is the significance of prejudice?

    asked by Victoria
  302. bramalea secondary school

    how many ways can you roll a pair of standard dice without getting a double?

    asked by barbara
  303. World History- (Ms. Sue).

    What is the significance of romanticism?

    asked by Victoria
  304. English

    1..He (saw, seen) dozens of beautiful yellow roses. 2. He (saw, seen) a film about safety. 3. They saw a car that (ran, run) a red light. 4. Officer Hill (did, done) a good job at our school. 1. saw 2. saw 3. ran 4. did

    asked by Hayden
  305. World History- (Ms. Sue).

    What is the significance of civil disobedience?

    asked by Victoria
  306. college algebar

    5< x-2/6

    asked by brenda
  307. Chemistry

    Which solution is more concentrated? a) 1.0L of 1.0M aqueous solution, or b) 1.0L of 1.0m aqueous solution

    asked by Jeanelle
  308. mATH

    First graders who misbehave in school may be more likely to be regular smokers as young adults according to a new study presented in the July 2004 issue of the American Journal of Epidemiology. After following a group of U.S. first graders for 15 years, it

    asked by bETTY
  309. maths

    A coin is tossed M+N times,M>N,then the chance of getting at least consecutive head is

    asked by Anonymous
  310. math

    what is 85 nearest tenth

    asked by matt
  311. math

    9/5xC)+32

    asked by matt
  312. english

    A person who is meticulous is likely to make swift decisions live a very chaotic life have a very clean house

    asked by someone unknown