Questions Asked on
March 11, 2013

  1. Math

    13. A catapult launches a boulder with an upward velocity of 148 ft/s. The height of the boulder (h) in feet after t seconds is given by the function h = –16t² + 148t + 30. How long does it take the boulder to reach its maximum height? What is the

    asked by Jim
  2. Algebra

    Which kind of function best models the data in the table? Use differences or ratios. x y 0 1.7 1 6.8 2 27.2 3 108.8 4 435.2 A.linear B.quadratic C.exponential D.none of the above I think it is C...?

    asked by Cassie
  3. Physics 11th grade 2

    1) A 20 kg rock is on the edge of a 100 m cliff. a. What potential energy does the rock possess relative to the base of the cliff? b. The rock falls from the cliff. What is the kinetic energy just before it strikes the ground? c. What speed does the rock

    asked by Isis
  4. Chemistry

    Calculate the pH for each of the following points in the titration of 50.0 mL of a 2.7 M H3PO3(aq) with 2.7 M KOH(aq). pKa1 = 1.3 and pKa2 = 6.7 a) before addition of any KOH b) after addition of 25.0 mL of KOH c) after addition of 50.0 mL of KOH d) after

    asked by KB
  5. math

    Given the following values, which number would be considered an outlier? 0.9, 2.1, 3.2, 3.9, 7.4, 5.8, 7.2, 8, 9.1 2.1 9.1 8 7.4 ________________________________________ I'm not sure because I was taught that an outlier is either too high or too low so it

    asked by Not Sure
  6. math

    A pyramid has a height of 5 in. and a surface area of 90 in2. Find the surface area of a similar pyramid with a height of 10 in. Round to the nearest tenth, if necessary?

    asked by peanut
  7. Social Studies

    1) Which U.S. region has the smallest states by land area? a. West b. Midwest c. Northeast d. South My Answer: 1) C NORTHEAST

    asked by Wendy
  8. chemistry

    A saline solution contains 1.1% NaCl by mass. How much NaCl is present in 87.2 g of this solution?

    asked by Amee
  9. math

    Eric plays piano and guitar. He practiced on both instruments for a total of 8 hours this week. He practiced the piano for 3/4 of that time. For how many hours did Eric practice the piano this week?

    asked by Ms.Vargas
  10. Social Studies

    1) The South is an excellent place to grow such crops as cotton, rice, tobacco, and sugar cane. Which of the following is NOT part of the South's excellent farming conditions? a. The warm climate is suitable for agriculture. b. There are no bugs. c. The

    asked by Dianna
  11. Chemistry

    Calculate the pH at the equivalence point for the titration of 0.200 M methylamine (CH3NH2) with 0.200 M HCl. The Kb of methylamine is 5.0× 10–4.

    asked by KB
  12. algebra

    The length of a piece of fabric is 8y yards. Landon cuts 7 yards from it to make some cushion covers. He then cuts another 3y yards to make a curtain. The remaining material is cut into 4 equal pieces. How long is each piece?

    asked by TB
  13. Math

    4. Landon is standing in a hole that is 6.5 ft deep. He throws a rock, and it goes up into the air, out of the hole, and then lands on the ground above. The path of the rock can be modeled by the equation y = 0.005x² + 0.45x – 6.5, where x is the

    asked by Jim
  14. physics

    A student throws two beanbags in the air, one straight up and the other one at a 30° angle from the vertical. Both beanbags are thrown with the same initial velocity and from the same height. In your own words, explain which one will come back and hit the

    asked by ella
  15. History

    Imagine you are one of the factory workers at Lowell Mills tasked with creating the headline story for this month’s factory newspaper. Factory Workers—Factory Worker Template 1. First paragraph: Hook your reader into wanting to read your article.

    asked by Anonymous
  16. Math

    Hello! I am here because I have a question. In math we are starting a new unit: Probability. One of the questions on my homework are "A number cube with the numbers 1 through 6 is rolled. Find the probability of rolling a complement of 4." I have no idea

    asked by Curious
  17. Algebra

    A model rocket is launched from a roof into a large field. The path of the rocket can be modeled by the equation y = –0.04x2 + 8.3x + 4.3 , where x is the horizontal distance, in meters, from the starting point on the roof and y is the height, in meters,

    asked by Cassie
  18. Math

    Jim made a down payment of 1000 dollars toward the purchase of a car. To pay the balance of the purchase price, he has secured a loan from his bank at the nominal rate of 5.1 percent per year compounded monthly. Under the terms of his finance agreement, he

    asked by Sarah
  19. Chemistry

    An equilibrium mixture of the following reaction was found to have [SO3] = 0.391 M and [O2] = 0.125 M at 600 °C. What is the concentration of SO2? 2 SO2 (g) + O2 (g) ====== 2 SO3 (g) Keq = 4.34 at 600 °C

    asked by Amee
  20. maths

    the longer side of a parallelogram is 54cm and the corresponding altitude is 16cm. if the altitude corresponding to the shorter side is 32cm, find the length of the shorter side.

    asked by sa
  21. Math

    Which of the following DOES NOT have any rectangular faces? A. pentagonal prism B. hexagonal pyramid C. rectangular prism D. square pyramid

    asked by Anonymous
  22. Algebra

    If an object is dropped from a height of 144 ft, the function h(t) = –16t² + 144 gives the height of the object after t seconds. When will the object hit the ground? 1.5 s 3 s 6 s 9 s I think it is 3s...?

    asked by Cassie
  23. social studies

    Compare and contrast how the United States and Canada achieved independence. Why do you think the United States has 10 times more people than Canada? Explain one way that ethnic groups in the U.S. and Canada are similar and one way that they are different.

    asked by Sammy
  24. Calculus

    The area of a wetland drops by 1/4 every 8 years. What percent of its total area disappears after 40 years? Percent lost %?

    asked by Orla
  25. Chemistry

    What is the oxidation state of Cr in each of the following compounds? (a) CrO (b) CrO3 (c) Cr2 O3

    asked by Amee
  26. math

    melinda charges $4 per hour for babysitting. Mrs Garden does not want to spend more than $25 for babysitting. what is the maximum number of hours that she can have melinda babysit. the answer is $24. solve the inequality

    asked by haley
  27. Chemistry I

    Determine the hydronium ion concentration in a solution that is 0.00018 M Ca(OH)2. Answer in units of M

    asked by Ashleigh
  28. chemistry

    please help and explain. At a certain temperature, Keq = 10.5 for the equilibrium below. CO(g) + 2 H2(g) equilibrium reaction arrow CH3OH(g) Calculate the following concentrations. (b) [H2] in an equilibrium mixture containing 1.01 mol/L CO and 0.335 mol/L

    asked by Julia
  29. ....

    p w s a f m i x copy the letters above on a piece of paper. cross out the second and last letters. replace all vowels with letters. double the second letter which letter sequence remains on your page? a. ssfmoi b.cffmmc c.sffmoc d.fscfmc

    asked by mary
  30. 3rd grade math

    1/3 2-fracture each third, what does it mean.

    asked by Lilly
  31. Physics

    A sound of constant frequency is produced by the si-ren on top of a firehouse. Compared to the frequen-cy produced by the siren, what is the frequency heard by a firefighter approaching the firehouse? What if the firefighter is driving away?

    asked by Iris
  32. Chem

    How many grams of KO2 are needed to produce 370.0 L of O2 at 20.0 degrees Celsius and 1.00 atm? 4KO2(s) +2CO2(g) --> 2K2CO3(s)+ 3O2(g)

    asked by Anonymous
  33. Chem

    The density of gas containing chlorine and oxygen has density of 2.875 g/l at 756.0 mm Hg and 11 degrees Celsius what is the most likely molecular formula of the gas?

    asked by Anonymous
  34. Chemistry

    The pH of a 1 .00 x 10-2 M solution of cyanic acid(HOCN) is 2.77 at 25 degrees. Calculate Ka and pKa for HOCN from this result.

    asked by Annie
  35. Calculus

    For the following demand equation compute the elasticity of demand and determine whether the demand is elastic, unitary, or inelastic at the indicated price. (Round your answer to three decimal places.) x + (1/9)p - 27 =0 ; p=23

    asked by Tay
  36. accounting please help

    Phil Phoenix is paid monthly. For the month of January of the current year, he earned a total of $8,288. The FICA tax rate for social security is 6.2% and the FICA tax rate for Medicare is 1.45%. The FUTA tax rate is 0.8%, and the SUTA tax rate is 5.4%.

    asked by heaven
  37. Math - Probabilities

    There are a total of 116 foreign language students in a high school where they offer Spanish, French, and German. There are 22 students who take at least 2 languages at once. If there are 47 Spanish students, 45 French students, and 49 German students, how

    asked by Sarah
  38. Math

    Minh is covering a necklace box with gift wrap. The necklace box is 15 centimeters long, 8 centimeters wide, and 2 centimeters high. What is the minimum surface area of the paper that will cover the necklace box?

    asked by Math lady
  39. Chemistry

    Zinc metal reacts with hydrochloric acid according to the following equation: Zn + 2HCl yields ZnCl2 + H2. How many grams of hydrogen gas can be obtained if 50.0 g of zinc react completely?

    asked by Raymond
  40. chemistry

    Calculate the temperature (K) at which the equation as written is at equilibrium. Express your answer to three significant figures. CaO(s) + CO2(g) → CaCO3(s) ∆G°!@#$%^&J/mol) CaO(s)-604.0 CO2(g)-394.4 CaCO3(s)-1128.8 ∆H°!@#$%^&J/mol) CaO(s)-635.1

    asked by Penny
  41. physics

    if Royce was 10 years old and he had a mass of 30kg. but by the time he turned 16 his mass has grown to 60kg. how much larger is the gravitational force between Royce and earth at age 16 compared to age 10

    asked by krystal
  42. math

    Write about how you would compute this problem. 432 - 49 I need some suggestions because I do not know what to write.

    asked by Anonymous
  43. Physics

    A bead slides without friction around a loop–the–loop (see figure below). The bead is released from rest at a height h = 3.60R. (a) What is its speed at point ? (Use the following as necessary: the acceleration due to gravity g, and R.) v = So I can't

    asked by Anonymous
  44. science

    state Newton's law of cooling.express it mathmatically.

    asked by shubhakar jha
  45. Physics

    A bead slides without friction around a loop–the–loop (see figure below). The bead is released from rest at a height h = 3.60R. (a) What is its speed at point ? (Use the following as necessary: the acceleration due to gravity g, and R.) v = So I can't

    asked by Anonymous
  46. Chemistry

    What is the silver ion concentration in a solution prepared by mixing 345 mL of 0.352 M silver nitrate with 443 mL of 0.511 M sodium carbonate? The Ksp of silver carbonate is 8.1 × 10-12

    asked by CP
  47. biology

    How might the damming of an river affect an estuary at the river's mouth

    asked by Anonymous
  48. Social Studies

    1) From 1892 to 1954, millions of immigrants entered the United States through an immigration station in the Northeast called a. Empire State Station. b. Big Apple Harbor. c. Manhattan Port. d. Ellis Island. 2) Northeastern cities are important trade

    asked by Sandy
  49. Chemistry

    Compare the g/L solubility of CaCO3 in pure water, a H3O+ (aq) solution with a PH of 3.00 and a H30+(aq) solution with a pH of 1.00. Ksp for CaCO3 is 3.36 x 10^-9 CaCO3 (s) + H3O (aq) = Ca (aq) + HCO3 (aq) + H2O (l) (equilibrium equation) Keq= 71 I knew

    asked by Andrew
  50. math

    castor brought 6 3/4 carat cakes to share with 26 students. did castor bring enough for each student to have 1/4 of cake?

    asked by dee
  51. Math

    someone can mow his lawn in 48 minutes. if his daughter helps, they can do it in 40 minutes, how long would it take for his daughter to mow the lawn by herself?

    asked by Megan
  52. Quantitative Methods

    The reorder point [see equation 14.6] is defined as the lead-time demand for an item. In cases of long lead times, the lead tie demand and thus the reorder point may exceed the economic order quantity Q*. In such cases, the inventory position will not

    asked by Anonymous
  53. Calc

    nadia is pulling a tarp along level ground with a force of 25 pounds directed along the tarp. If the tarp makes an angle of 50 degrees with the ground, find the horizontal component of the force.

    asked by Tori
  54. chemistry

    20mL ethanol(density=o.789g/mol) is dissolved in sufficient water to produce a 200mL solution. the density of the solution is 0.982g/mL. what is the molarity?

    asked by mj
  55. Finance

    1. The present value of a cash flow stream is $11,958.20. Using a discount rate of 12% what would be the missing cash flow in year 2? Year Cash Flow 1 $2,000 2 ??? 3 $4,000 4 $4,000 a. $4000 b. $4500 c. $5000 d. $5500 e. $6000

    asked by Mya
  56. Chemistry

    A 5.00-mL sample of an H3 PO4 solution of unknown concentration is titrated with a 0.1003 M NaOH solution. A volume of 6.55 mL of the NaOH solution was required to reach the endpoint. What is the concentration of the unknown H3 PO4 solution?

    asked by Amee
  57. Microbiology

    if the original concentration of phage was markedly increased from the concentration that you received, how could you ensure that you had between 30-300 plaques on your plate? (instead of TNTC)

    asked by Melissa
  58. physics

    A Chinook salmon has a maximum underwater speed of 3.0 m/s, and can jump out of the water vertically with a speed of 4.8 m/s. A record salmon has a length of 1.5 m and a mass of 62 kg. When swimming upward at constant speed, and neglecting buoyancy, the

    asked by Anonymous
  59. economics?

    If you were president, would you be more interested in your economic advisors' positive views or their normative views ? Why ?

    asked by roger
  60. geometry

    If ABCDE and LMNOP are similar polygons, then the ratio of AB to LM must be equal to the ratio of CD to NO. (Assume and are corresponding sides, as are and .)

    asked by Anonymous
  61. math

    UGH! The human population of the world is over 6 billion. The increase of the human population P (in billions) can be approximated using the following formula: P = 0.073t + 6.08, where t is the number of years after the year 2000. Use the formula to

    asked by Linda
  62. math

    JOHN is planting a garden. He wants to put a fence around it. If the garden is 3,000cm wide and 6,500 cm long, how much fence does he need? What will the cost be if fence is 15.25 per meter

    asked by sam
  63. Chem

    Which substances are not ionized in a aqueous solution? Hi, KBr, H2SO4, HON2, AgCl, Ca(NO3)2

    asked by Perla
  64. math

    suppose that oil spilled from a tanker and spreads in a circular pattern whose radius increases at a constant rate of .5 feet per second. -find a function f that models the radius of the oil spill as a function of time r=f(t) with t measured in seconds.

    asked by Crystal
  65. Calc

    nadia is pulling a tarp along level ground with a force of 25 pounds directed along the tarp. If the tarp makes an angle of 50 degrees with the ground, find the horizontal component of the force.

    asked by Tori
  66. College Mathematics

    (odds) Playing Bingo:When playing bingo, 75 balls are placed in a bin and balls are selected at random. Each ball is marked with a letter and a number as indicated in the following chart: B: 1-15 I: 16-30 N:31-45 G:46-60 O:61-75. For example there are

    asked by slomomo
  67. Math

    Richard borrowed 180000 dollars from his bank to help finance the purchase of a house. The bank charges interest a rate of 5.9 percent per year compounded monthly. Richard has agreed to repay the loan in equal monthly installments over 25 years. How much

    asked by Sarah
  68. Chemistry

    Iodine is mainly found in water in the trioxide ion, I3 which is formed by the combination of molecular iodine, I2 and Iodide, I-, according to the equation: I2(aq) +I-(aq) I3(aq) QUESTION: how does the system in the equilibrium seem to respond to the

    asked by Annie
  69. Chemistry

    I had to find the root mean square velocity of a gas using the only formula KE=1/2MV^2 . Is this even possible using only this formula?

    asked by Shadow
  70. algebra

    Graph the solutions of each linear inequality. y≥4x-3 where would i start on the graph and where would i go ? BIG test tomorrow need help asap :) thx

    asked by DARIAN :)
  71. Math

    Which of the following has exactly four faces? A. cone B. square C. triangular prism D. triangular pyramid

    asked by Anonymous
  72. Statistic HELPPPPPP

    A linear model can be used to describe the relationship between fuel economy(mpg) and horsepower (hp) for certain automobile models. mpg=46.868-0.0838 hp R^2=75.5% 1) Give the symbol and the value of the correlation coefficient. 2)What would the gas

    asked by Melissa
  73. Bioprocessing

    A continuously operated 1000 liter CSTR is used for production of biomass from glucose provided by the feed (feed rate of 100l/h and glucose concentration of 10 g/l). The bacteria show Monod type growth with a maximal specific growth rate of 0.4/h and an

    asked by Emily
  74. English

    Aboard at a ship’s helm, A young steersman steering with care. Through fog on a sea-coast dolefully ringing, An ocean-bell—O a warning bell, rock’d by the waves. O you give good notice indeed, you bell by the sea-reefs ringing, Ringing, ringing, to

    asked by Cheryl
  75. MATH

    A ladder is 25 ft long. The ladder needs to reach to a window that is 24 ft above the ground. How far away from the building should the bottom of the ladder be placed? Please show work.

    asked by Annie
  76. Astronomy

    Which of the following can be considered evidence of galaxy evolution observed in the Milky Way? - differential rotation of the galactic disk - existence of different populations of stars - existence of hot gas in the interstellar medium - the rotational

    asked by qwerty
  77. chemistry

    Chlorine gas is collected in a gas collecting tube above water. The gas is at 20oC and the total pressure in the tube is 755 mmHg. What is the pressure (in mmHg) of chlorine gas in the tube?

    asked by andrew
  78. math

    Maria gave a store clerk $10.00 for a purchase that cost $9.19. Part A What is the total amount of change Maria should have received from the clerk? Part B How would Maria receive her change using the least number of coins possible? Part C Show 1 way Maria

    asked by mat
  79. social studies

    Please check:( these came from a word bank) wanted the united states to have a port on the gulf of mexico: Thomas Jefferson needed money to fight a war: William Clark? leaders of the Corps of Discovery: Meriwether Lewis, William Clark, Thomas Jefferson

    asked by Celest
  80. Health Ms. Sue please

    1. What occurs in a woman's body during a menstrual cycle? (1 point) The egg matures in the ovary. The uterine lining builds up. The egg releases from the ovary. all of the above 2. The _______ produces the hormone that develops the reproductive system,

    asked by Delilah
  81. Lang. Arts

    Identify the participle and the word it modifies in the following sentence. The boy’s hateful words caused the girl so much pain. A.The; boy’s B.hateful; words C.words; cause D.so; much I think it is C...?

    asked by Cassie
  82. chemistry

    a 2.50mL sample of dry air in a cylinder exerts a pressure of3.00atm at room temperature. without changing the temperature, a piston is moved until the pressure in the cylinder is reduced to 1.00atm. what is the final volume of the gas?

    asked by jm
  83. physics

    We know how to calculate the total resistance of the cylindrical conductor given its length, radius, and resistivity. But how do we calculate the equivalent resistance when the resistivity is not constant? For example, say the resistivity at a particular

    asked by abcd
  84. maths-probabilty

    find the no. of ways in which letters of the word ARRANGEMENT can be arranged so that 2A's and 2R's do not occur together?

    asked by anoynomous
  85. English

    i have a hard time calculating my grade & am in college. Please tell me the grade I have so far & will have, thank you!365 points in the course is needed. Lecture exams and quizzes are worth about 60% of the total grade &90 ≤ A 80 ≤ B < 90 70 ≤ C <

    asked by jessica
  86. Science

    Describe the apparent motion of the stars and planets that is caused by the revolution and rotation of the earth.

    asked by Aj
  87. Math

    The freezer is always less than 6 degrees Fahrenheit write an inequality for the temperature t in degrees. Graph the inequality

    asked by Jared
  88. Finance

    3. Which of the following results in the creation or accumulation of treasury stock? a. Stock dividends b. Stock repurchases c. Stock splits d. Reverse stock splits

    asked by Mya
  89. science

    the decomposition of h2o2 is first order reation following up the decom position it was found that the remaining h2o2 after 45 min was 15 units from the original concentration57.5 unit calculate the rate constant

    asked by Anonymous
  90. physics

    water is pumped steadily out of a flooded basement at a speed of 4.5 m/s through a uniform house of radius 1.0 cm.the hose passes out through a window 3.5 m above the waterline.what is the power of the pump

    asked by khakan
  91. Science

    Can wood, silver or yarn light up a light bulb? I think wood can carry a current.

    asked by bobby
  92. science

    which rna base sequence would produce the animo acid sequence: Valine ALanine

    asked by mary
  93. science

    which rna basr sequence wod produce the amino acid sequence : Valine Proline Alinine a.GCGCGUUG B. GUGCCUGCG C. GUUCCCACU D. GCUCUUGCU

    asked by mary
  94. physics

    A sinusoidal voltage Δv = (65 V) sin (140t) is applied to a series RLC circuit with L = 100 mH, C = 175 μF, and R = 42 Ω. (a) What is the impedance of the circuit?

    asked by Anonymous
  95. Grammar

    “Her coffee-and-cream neck” is an example of what type of figurative language? personification symbol simile metaphor

    asked by Mr.Brain
  96. Physics

    Two particles each have a mass of 5.5 10-3 kg. One has a charge of +4.8 10-6 C, and the other has a charge of -4.8 10-6 C. They are initially held at rest at a distance of 0.88 m apart. Both are then released and accelerate toward each other. How fast is

    asked by Anonymous
  97. geometry!

    The swimming pool that sunny goes to has dimensions 20 meters long, 8 meters wide and 3 meters deep. What is the volume of water (in m^3) that the swimming pool contains?

    asked by Anonymous...anyone please help!,
  98. math

    Mike says that 2/3 of his class is wearing blue shirts.ryan says that 4/6 of the same class is wearing blue shirts. Are the two fractions equivalent?if so,what is another equivalent fraction?

    asked by Ms.Vargas
  99. Life orientation

    What can i do if i want to be a publisher,engeneering and tour operater?

    asked by Lindani
  100. Gen chem 1

    According to the following reaction, what volume of 0.25 M CaCl2 solution is required to react exactly with 50.0 mL of 0.20 M Pb(NO3)2 solution? CaCl2(aq) + Pb(NO3) (aq)- PbCl2(s) + 2 KNO3(aq).

    asked by jenni
  101. maths-probabilty

    find the no. of ways in which letters of the word ARRANGEMENT can be arranged so that 2A's and 2R's do not occur together?

    asked by anoynomous
  102. physics

    A wire that is 46 cm long is parallel to a 0.54 T uniform magnetic field. The current through the wire is 4.5 A. What force acts on the wire?

    asked by Billy
  103. math

    there are 765 marbles in a in a box. there are twice as many blue marbles as green marbles. there are 3 times as many red marbles as blue marbles, how many red marbles in the box

    asked by Anonymous
  104. Lang. Arts

    In “Cream Puff,” Jen is a dynamic character because she A.shows her active personality in the story. B.is the main character of the story. C.stays the same during the course of the story. D.changes during the course of the story. If you know the story?

    asked by Cassie
  105. Chemistry

    What is the concentration (in M) of an ammonia (NH3) solution if 12.23 grams of ammonia are dissolved to make a 520 mL solution?

    asked by Ashley
  106. math

    Television Jim’s mother watches a lot of TV. The screen is 30 inches tall and the bottom of the screen is 6 inches above her eye level while sitting in her favorite chair. To optimize her viewing experience, Jim wishes to calculate how far from the

    asked by jonh
  107. Microbiology

    Calculate the # of phage present in the original sample. Report the dilution factor used and show calculation. 171*1000=171000 PFU/mL Is this a lytic or lysogenic phage? explain.

    asked by Katy
  108. speech

    You are concerned about the high rate of school droupouts in your community and have recentky addressed the youth at a local secondary school who were thinking of dropping out of school and look for job.please help me its urgent the task is needed tomorrow

    asked by Anikie
  109. Chemistry

    Give a real life scenario in which solubility is important that does NOT involve salt and water.

    asked by Juan
  110. calculus

    Please help . confused here. The rate of change of an investment account earning continuous compound interest is given by dA/dt=kA where k is a positive constant. The initial account value was $2500. At the end of the third year, the account value was

    asked by mikey2
  111. Math

    In right triangle ABC what is the arithmetic mean (average), in degrees, of the measures of the two smallest angles? Explain how the answer is 45 degrees.

    asked by Sally
  112. Trig

    the number of solutions of sin x= -sqrt3/2 for x between 0 and 2pi

    asked by David
  113. geometry

    7 points are placed in a regular hexagon with side length 20. Let m denote the distance between the two closest points. What is the maximum possible value of m?

    asked by J
  114. Geometry

    A 20 foot ladder is leaning aagainst a wall the base of the ladder is 7 feet away from the.wall hkw high up the wall will the ladder reacb

    asked by Alyssa
  115. Chemistry

    I'm working on a problem dealing with calculating the heat of vaporization for vapor pressures problem. By substituting the problems values into the Clausuis-Clapeyron equation I get: .642= (2.28x10-5) x Delta H vap (J/mol) However, from this point I don't

    asked by Marcus
  116. calculus

    Based on data from 1999 to 2001, the rate of change in the annual net sales of Pepsi-Cola North America may be modeled by R(t) = −131t − 749.5 million dollars per year and the rate of change in the annual operating profit may be modeled by P(t) = 12t +

    asked by GERRY
  117. trigonometry

    In triangle cth angle c is 17 and c=12 and h=31 How many distinct triangles CTH are possible? Find all measures of h to the nearest degree find all possible lenghts of CH to the nearest degree

    asked by mirielle
  118. physics

    If you do 110 J of work to elevate a bucket of water, how much energy did you add to the gravitational field?

    asked by George
  119. Geometry

    180° about z takes (x,y,z) -> (-x,-y,z) 90° about x takes (x,y,z) -> (x,z,-y) so, your two rotations take (x,y,z) -> (-x,z,y)... z axis top/bottom, x/y axis right/ left... A dice has 3 on the top, 4 bottom, 1 left, 2 right, 5 left back, 6 right back...

    asked by PLEASE HELP-URGENT!!
  120. physics

    What would the gravitational potential energy be if the bucket were raised six times as high?

    asked by George
  121. math

    Kylee bought a pack of 12 cookies. Two thirds of the cookies are peanut butter. How many of the cookies in the pack are peanut butter?

    asked by Ms.Vargas
  122. Ss

    Information on Patrick Henry his role in revolution, Information on George Washington his role in revolution Information on John Adams his role in revolution Website that is not Wikipedia.

    asked by Anonymous
  123. Physics

    how far from the center of the earth would a person with a weight of 469N on earth have to be to have a weight off 55.4N?

    asked by nick
  124. chemistry

    does Adding A increased Q, so the net reaction proceeds to the left to decrease Q. a+b=ab

    asked by andrea
  125. Biology

    A series of laboratory experiments are set up to investigate various aspects of the photosynthetic process in Elodea canadensis, a common species of pond weed which lives underwater. In the experiment a fixed quantity of Elodea canadensis is incubated

    asked by Anonymous
  126. physics

    at highway speeds, a particular automobile is capable of an acceleration of about 2.6 m/s^2. at this rate, how long does it take to accelerate from 60 km/h to 110 km/h?

    asked by samantha
  127. algebra

    factor (1-y)^8

    asked by Ree
  128. Statistics

    what is the probability that your second card is heart in general regardless of the card you drew first?

    asked by Anonymous
  129. Microbiology

    What are the original color of these agar plates? Eosine Methylene Blue Mannitol Salt Agar Phenylethyl Alcohol Agar Mueller Hinton Agar

    asked by Katy
  130. English

    I need to come up with a new character for Disneyland for my english homework. Does anyone have any good ideas

    asked by Paula
  131. maths-parallelogram

    A farmer had a plot in the shape of a parallelogram. He divided into three equal parts, each of which was a separate parallelogram. He then gave his son one-third of the land. The son, who realized that the district in which he lived had no school, decided

    asked by anoynomous
  132. math

    -2/3x+5

    asked by Anonymous
  133. English Rewites

    Most of you know the condition as a stroke. Begin:Having Spent

    asked by Roma
  134. Math

    Write the following decimals as fractions and find the Quotients. 4.5 divided by 0.9= 0.6 divided by 0.12= 1.2 divided by 0.5= 22.5 divided by 0.5= 0.18 divided by 0.03=

    asked by Gabriel
  135. Geometry

    ABC is a triangle with area equal to 20 . The incircle of triangle ABC has radius equal to 2 and the circumcircle of triangle ABC has radius equal to 6 . If sinA+sinB+sinC=a/b , where a and b are coprime positive integers, what is the value of a+b ?

    asked by Tony
  136. Science

    If one light bulb was removed in a circuit I think the others will go out because it is incomplete is this right? I will the remaining lights powered by a 9 volt be dim? I am not sure? I think go black dark because its incomplete.

    asked by bobby
  137. General Chem

    At a given temperature and pressure, the volume of a gaseous sample is directly proportional to the moles of gas (volume = C * moles, where C is a constant). Assuming that the tempreature and pressure is the same for the reaction of magnesium with HCl(aq)

    asked by Amy
  138. Physical Science

    How do you calculate the number of grams of ice at 32 degrees celsius that can be melted by 1g of steam?

    asked by Bella
  139. Math

    Could someone please help me with this problem I just do not get it. Arrange the numerals 1 to 9 (1, 2, 3, 4, 5, 6, 7, 8 and 9) in a single fraction that equals exactly 1/3 (one third)? Example that doesn't work: 7192/38456 = 0.187

    asked by Kammi
  140. calculus

    Find the general solution to the differential equation: yy’ – x2 = 3.

    asked by beth49
  141. math

    How many distinct 3 digit odd integers are there? Distinct meaning none of the digits repeat.

    asked by Anonymous
  142. Geometry

    A 20 foot ladder is leaning aagainst a wall the base of the ladder is 7 feet away from the.wall hkw high up the wall will the ladder reacb

    asked by Alyssa
  143. geometry

    7 points are placed in a regular hexagon with side length 20. Let m denote the distance between the two closest points. What is the maximum possible value of m?

    asked by Anonymous...please help!
  144. geometry!

    ABCD is a square with AB=25. P is a point within ABCD such that PA=24 and PB=7. What is the value of PD^2?

    asked by Anonymous...please help!
  145. geometry!

    ABCD is a square with AB=25. P is a point within ABCD such that PA=24 and PB=7. What is the value of PD^2?

    asked by Anonymous...please help!,
  146. math

    graham divided his garden into 16 sections so far he has planted 3 of the sections. What fraction of the garden has been planted

    asked by tye
  147. simple geometry

    How many numbers from 1 to 100 are multiples of 3 but not 5?

    asked by Anonymous...anyone please help!,
  148. physics

    Calculate the work done when a 18 N force pushes a cart 2.5 m.

    asked by George
  149. algebra!

    How many positive integers, a, are there such that 2027 divided by a leaves a remainder of 7?

    asked by SOMEONE HELP ME!!
  150. physics

    A boulder is raised above the ground so that the gravitational potential energy relative to the ground is 360 J. Then it is dropped. What is its kinetic energy just before it hits the ground?

    asked by George
  151. english

    Which sentence uses italics, quotation marks, and punctuation correctly? The lesson titled “Quotation Marks” in the book WRITEING WITH POWER explains the many uses of quotation marks when writing. The lesson titled QUOTATION MARKS in the book WRITEING

    asked by Nisabel
  152. Life orientation 2013 March assignment

    Im need you to help im need info. About my career selecting

    asked by Lindani
  153. Grammar

    Whom can you believe? Now if I change this into a statement You can believe whom. Whom is an object of the verb correct?

    asked by Dakota
  154. Lang. Arts

    From the story "Cream Puff" Jen resolves her conflict by learning how to A.follow the coach’s advice. B.play according to her strength. C.learn from her father’s example. D.take a hit on the court. I think it is B...?

    asked by Cassie
  155. maths-parallelogram

    A farmer had a plot in the shape of a parallelogram. He divided into three equal parts, each of which was a separate parallelogram. He then gave his son one-third of the land. The son, who realized that the district in which he lived had no school, decided

    asked by anoynomous
  156. College Math

    Find the area of a triangular piece of carpet that has a 12-inch base and is 18 inches high.

    asked by Linda
  157. social studies

    Explain the effect of social studies in solving environmental problems.

    asked by hauwa
  158. math

    Louis and his friends shared an equal amount of money between them. They each got $1.20. How much money was there? How many friends did Louis have

    asked by Arianna
  159. chemistry

    a 2.50mL sample of dry air in a cylinder exerts a pressure of3.00atm at room temperature. without changing the temperature, a piston is moved until the pressure in the cylinder is reduced to 1.00atm. what is the final volume of the gas?

    asked by jm
  160. chemistry

    Calculate mole fraction of solution made by mixing 46gram alkohol in 360 gram water at given temperature?

    asked by Parmvir khipal
  161. maths-linear equation

    Draw the graph of the linear equation whose solutions are represented by the points having the sum of the coordinates as 10 units.

    asked by anoynomous
  162. chemistry

    Calculate mole fraction of solution made by mixing 46gram alkohol in 360 gram water at given temperature?

    asked by Parmvir khipal
  163. Algebra-Ms. Sue

    Please answer my questions....

    asked by Cassie
  164. Math

    Find the area of a circle with a radius of 4 meters (use 3.14 for PI)

    asked by Linda
  165. math

    if the angle of a triangle are in a ratoi 5:5:8 what is the triangle

    asked by khanyisile
  166. Maths

    From a point on a lighthouse 76 metres above sea level,the angle of depression of a fishing boat 28 degrees.How far is the boat from the foot of the lighthouse?

    asked by Shane
  167. math

    Brett was at bat 16 times in today's baseball game. He got 4 hits. Brett says that he got a hit 4/16 of the time. His coach says he got a hit 1/4 of the time. Are the two fractions equivalent? If so, what is another equivalent fraction?

    asked by Ms.Vargas
  168. Physics

    James Bond is trying to jump from a bridge and land on the first car of a moving train that is going to pass under the bridge. The train moves at 85 km/h and the vertical height between the bridge and the top of the carriage is 15 m. if Bond gets a running

    asked by Eduardo
  169. geometry

    A cylindrical water tower with a conical top and hemispheric bottom needs to be painted. If the cost is 2.19 per square foot, how much does it cost (to the nearest dollar) to paint the tank?

    asked by tmouery
  170. Englis

    Which two words contain the same constant blend? 1. sailor and found 2. belly and stumped 3. thumped and bumped 4. soon and jumped #3

    asked by Hayden
  171. math

    A nurse needs to make 30 ml of 5% solution of glucose. She has available bottles containing 5 ml of 7% solution and bottles containing 10 ml of 1% solution. How many 5 ml bottles and 10 ml bottles will she need to make the solution? Bottles of 5 ml of 7%

    asked by Josh
  172. Science

    How do you do a Leg table in science?

    asked by Kayla
  173. math

    factorise 15x -6x+5y-2

    asked by diya
  174. analogy

    After is to before as death is to?

    asked by Anonymous
  175. math

    If i have a figure that has 4 inches for the base and height and 12.56 for my total circumference. My total is28.56 feet am i correct . Thanks.

    asked by Americal
  176. maths-probabilty

    A man has brought tomota and five fruits from market. How many ways he can prepare mixed jam by selecting any 3 fruits excluding tomato

    asked by anoynomous
  177. Algebra

    9x^3+36x^2+36

    asked by Steve
  178. math

    Marks: 6 If in a triangle ABC, m

    asked by Linda
  179. MATH

    CONVERT 1/8 TO A DECIMAL. WHAT TYPE OF DECIMAL IS YOUR ANSWER?

    asked by TALLEEM
  180. Math

    A pole has a shadow that is 5 feet long. Jackie's shadow is 3 feet long, and she is 6 feet tall. How tall is the ladder?

    asked by Brittany
  181. history

    Who were the early settelers of virginia in the 1600's.

    asked by math brain
  182. math

    A pad of loose-leaf paper is $0.40 less than a notebook. Together they cost $1.80. How much does the loose-leaf paper cost?? The notebook?

    asked by Tim
  183. math

    simplify each expression. write your answer with positive exponents assume that all variables represent positive real numbers.find the decimal value of each expression round approximate answer to four decimal places (a^^1/2b)^1/2(ab^1/2)

    asked by Anonymous
  184. eng1511

    The sure solution of unemployment is a better quality of education

    asked by amanda
  185. math super urgent

    Louis and his friends shared an equal amount of money between them. They each got $1.20. How much money was there? How many friends did Louis have? also please explain answer.

    asked by Arianna
  186. Chemistry

    I was given extra credit to find who Le Châtelier's High School Principal was. Not his PrincipLE, but his PrincipAL. My chemistry teacher told us only one student of his out of all these years came with the answer. Think outside of the box. Thanks.

    asked by John
  187. Algebra

    Please look at the following simplification of an algebraic expression. Which line contains the mistake and why? Line 1: (2x + 6x) + 4y + 3x - 2xy Line 2: (8x) + 4y + 3x - 2xy Line 3: 8x + 3x + 4y - 2xy Line 4: 11x + 4y - 2xy Line 5: 13xy

    asked by Linda
  188. ENG1511

    WHAT TYPE OF TEXT IS THE ABOVE PASSEAGE? WHY YOU SAY SO?

    asked by ACE
  189. history

    Which of the following labor activists founded the American Federation of Labor? A. Samuel Gompers B. William Sylvis C. Uriah Stephens D. Terence Powderly

    asked by juan
  190. math

    find the inverse of each function. is the inverse a function? 1) f(x)=-2x+9 2) f(x) x^2+2

    asked by lisa
  191. Astronomy

    At what cosmic time was/is star formation density at its peak? -At present time. -Within the first billion years after the Big Bang. -At about few billion years after the Big Bang. -About few billion years ago.

    asked by qwerty
  192. Account

    I need to ask some opinion about this question. determine whether the description refers to solo proprietorship, partnership or corporation. 1. Jo Chen & Al Fitch own Financial services provider. Neither Chen nor Fitch has personal responsibility for the

    asked by ifi
  193. SCIENCE

    when a diorite partially melts, which element(1)............ decreases in the melt as a(2).......... magma forms. I have few options to choose from a)iron b)andesite c)rhyolite d)potassium f)basalt

    asked by john
  194. Math

    A ladder has a shadow 3.5 meters long. Marlowe’s shadow is .75 meters long. If Marlowe is 1.5 meters tall, how tall is the ladder?

    asked by Brittany
  195. Astronomy

    What causes the ionization of the Intergalactic Medium (IGM)? - radiation from star-forming galaxies and quasars - residual radiation from inflation - heat generated from combustion in the IGM - the baryon density of the IGM

    asked by qwerty
  196. Organic 1

    what orbital overlaps in butene

    asked by J
  197. Algebra II

    Find the Linear function with the following properties: f(-9)=-0 and the slope of f equals 3/4

    asked by Jeannie
  198. Science

    When you run around a track at 5 km/h, your velocity is accelerating. true false I think it is true...?

    asked by Cassie
  199. Geometry

    Given: segment AB is congruent to segment BC; angle 1 is congruent to angle 2 Prove: triangle ABC is congruent to triangle DEC

    asked by Constance
  200. science

    To find acceleration, subtract the final velocity from the initial velocity and divide by the time. true false I think this is false...?

    asked by Cassie
  201. Math

    An architect is drawing a scale model of a new mall. The real mall will be 1800 feet long. The scale the architect is using is 1 inch is equal to 100 feet. How long will the model be?

    asked by Brittany
  202. physics

    a car traveling 41.6 m/s is 190 m behind a truck traveling 19.4 m/s. how long will it take the car to reach the truck?

    asked by samantha
  203. Math

    What is the value of x x/60 = 1/2/1/6

    asked by Brittany
  204. Business English

    Which of the following statements is essential about how the standard pattern for informative and posiive messgaes should be applied? Use all five of the elements of the basic organizational pattern present each element in a separate paragraph of its own

    asked by Lori
  205. math

    I am beginning to feel stupid here! Twelve more than twice a number is 22. Find the number

    asked by Linda
  206. life orientation

    Hiv and aids life style disease/behaviour and explain 5 factors that contribute to the disease

    asked by tshotlego
  207. Math

    Can you show 1 3/5, 1.3, and 1 1/10 on a number line?

    asked by Ann
  208. spanish

    what does ella mean

    asked by jeff
  209. Computers

    Select the first step in the Informative Processing cycle. storage output input processing

    asked by Lori
  210. Physics

    A microscope is focused on a mark a table, when the mark is covered by a glass 3.00cm thick. Tthe microscope has to be raised 1.1cm for the mark to be once more in focus. Calculate the refractive index of the glass.

    asked by Ihekweazu kingsley
  211. math

    Sqaure root 3-2root2??

    asked by tuhituhi
  212. Algebra

    Express in a different or equivalent form. - 11x + 3 / 4x - 3

    asked by Terry
  213. Algebra

    Tell whether the graph opens up or down. Find the coordinates of the vertex. Write an equation of the axis of symmetry. Y=3x^2 The graph opens up but I don't get how you would find the coordinates of vertex and how to write the equation of axis of

    asked by Emma
  214. Chemistry

    I don't really know how to go about this, Please help 1. Calculate the number of moles of the gas. Calculate the volume the gas would occupy at 100.0 C and 15.0 atm. 10.8 g He 2. Given the volume of 54.0 C and 790 torr, calculate the number of moles and

    asked by Geoffrey
  215. Accounting

    She deferred the current year depreciation of $49,000 to the following year in order to present in higher profit. My answer is the violation in conservatism bcuz she should calculate the current profit for every year.

    asked by ifi
  216. us history

    i got a project and i'm having trouble. its abc's revolutionary war. i got hae a important thing in the war and it has to start with that letter. I'm stumped on I,N,O, Q,R,U,V,W,X,Z. Help!!!!!

    asked by nyamka
  217. Math

    Can in a Cone Find the volume of the largest can that can fit entirely under a cone with volume 900 cubic cm. 1.draw pictures of at least THREE different cases (including the endpoints if any). 2. define all variables CLEARLY (with words) and then use

    asked by jonh
  218. Math

    Television Jim’s mother watches a lot of TV. The screen is 30 inches tall and the bottom of the screen is 6 inches above her eye level while sitting in her favorite chair. To optimize her viewing experience, Jim wishes to calculate how far from the

    asked by jonh
  219. Organic chem 1

    What is cyclopentane with a butane called?

    asked by Jenni
  220. Quantum Physics

    Let |ψ> = a|0>+b|1> where a and b are nonnegative real numbers. We know that if we apply H to this qubit and then measure the resulting state in the sign basis, the probability of getting a + is 1/4 (a) What is |ψ> in the standard basis? |0> = |1> = (b)

    asked by qwerty
  221. biology

    what is deep time?

    asked by emily
  222. algebra

    I have to find the x and y intercepts of -128 = 52x + 88y

    asked by DJDiamond
  223. math

    How many distinct 3 digit odd integers are there? Distinct meaning none of the digits repeat.

    asked by Anonymous
  224. chemistry

    how do you convert .99grams of copper to moles using the atomiuc weight

    asked by erika
  225. Quantum Physics

    I) Provide a unitary that maps |+> to |1> and |-> to |0> . Enter 0 in all boxes if no such unitary exists. a b c d II)Provide a unitary that maps |+> to |0> and |-> to |+> . Enter 0 in all boxes if no such unitary exists. a b c d III)Provide a unitary that

    asked by qwerty
  226. math

    there are 5 pieces of pie. liz, zach, and dan each have a pieces. what fraction of the pie is left?

    asked by jhoven
  227. math

    there are 5 pieces of pie. liz, zach, and dan each have a pieces. what fraction of the pie is left?

    asked by jhoven
  228. Trigonometry

    Let è be the angle between the x-axis and the line connecting the origin O(0,0) and the point P(−3,−4) , where 180

    asked by Tony
  229. math

    simplify each expression write your answers with positive exponents (a^1/2 b) 1/2 (ab^1/2)

    asked by Anonymous
  230. Quantum Physics

    Suppose we are given a single qubit which is either in the state |u> = cos(pi/8) |0> + sin(pi/8) |1> or |v> = cos(3pi/8) |0> + sin(3pi/8) |1>. We measure this qubit in the standard basis and guess u if the outcome is 0 and guess v if the outcome is 1. (a)

    asked by qwerty
  231. Geometry

    ƒ¡ is a circle with center O . A and B are points on ƒ¡ such that the sector AOB has perimeter 40 . What is the measure of ÚAOB (in radians) when the area of the sector AOB is maximized

    asked by Tony
  232. math

    Consider all three-digit numbers that are greater than the sum of the squares of their digits by exactly 543. What are the last three digits of the sum of these numbers?

    asked by Jacobb
  233. math

    There was a car accident. The first car was going 50 mph before the accident occurred, and the second car was going 60 mph. When the cars were at this speed, they were 40 feet away from each other. They were accelerating 2 mph per foot. How fast were they

    asked by Kaytlynn
  234. social studies

    the scale on a map states that 1/2 in equals 350 yards it is 1,925 yards from your house to the store. how many in apart are your house and the store on the map.

    asked by Anonymous
  235. University English 101

    Society often forces individuals to act a certain way. The manipulation of blending into the masses in order to follow the standards of society during the civil rights era is the main point of "The Library Card" by Richard Wright. In the fourth paragraph

    asked by Peter
  236. maths

    What is the value of whole root 3+2 root 2 equals to ????

    asked by tuhituhi
  237. Math

    How do u graph an inequality

    asked by Jared
  238. grammar help

    Aunt Dessie unfolded out of the car like a carpenter’s ruler” is an example of personification. symbol. simile. metaphor.

    asked by alex
  239. algebra URGENT HELP

    analyze the graph of the following function solve R(x)=x(x-16)^2 /(x+11) solve the following inequality write solution in interval notation x+14/x-8 less than or equal to 1

    asked by zachary
  240. science

    the team____ won the game is my favorite a. which b. whom c.who d. that

    asked by mary
  241. Business

    Examples of corporate social responsibity invovement by anglo american,Nedcor and absa

    asked by Anikie
  242. Chem

    a 1.00 vessel at 0 degrees celcius contains 0.17 mols n2 1.0 mols h2 and 1.0 mols CH4 calculate the pressure of the gas mixture and the partial pressure of each constituent gas in the mixture. Ptotal= ? Pn2=? Ph2=? PCH4?

    asked by Anonymous
  243. Chemistry

    A sample of gas weighs 2.832g and has a volume of 1010.0 ML at 775.0 torr and 31.0 degrees Celsius what is its molar mass?

    asked by Anonymous
  244. business math/finance

    1. If you were to place $15,000 in the bank at 3% interest, how much would you have in the bank after one year if the interest were compounded quarterly?

    asked by shaunta
  245. Chemistry

    I had to find the root mean square velocity of a gas using the only formula KE=1/2MV^2 . Is this even possible using only this formula?

    asked by Shadow
  246. physics

    determine the magnitude of the centripetal force that acted on the whirling ball??

    asked by stephie
  247. Physical Science

    How do you get the velocity of a roller coaster when you are only given 250.0kg and 2.000x10^4 Joules

    asked by Bella
  248. math

    16/28 as a percent and round to the nearest percent

    asked by james
  249. Trig

    the height of a flagpole if a student stands 37 feet from it and determines the angle of elevation to be 34 degrees and her eyes are 5.3 feet from the ground.

    asked by David
  250. Physics

    You are standing on top of a building that is 75-m high and you throw a 3-kg stone horizontally at a speed of 5.4-m/s. How far from the base of the building will the stone land? (the ground is flat)

    asked by Josie
  251. english

    When you had a car accident last month,a friend offered to help while you were recovering at home.write informal letter and thank her for her kindness!please its urgent

    asked by Anikie
  252. english

    When you had a car accident last month,a friend offered to help while you were recovering at home.write informal letter and thank her for her kindness!please its urgent

    asked by Anikie
  253. Chemistry

    How much salt could an average person hold? (Ignore safety concerns) Given equation: 0.3x=y 0.3x meaning mass of water y mean mass of salt that could be dissolved in the given mass of water Assuming the average human body has 60-75% of water, let us just

    asked by Juan
  254. math

    purchasing a home taking out a mortgage of $235,000 at 81/2 % for 25 years excluding taxes and insurance, what is the monthly PITI of their loan?

    asked by Anonymous
  255. Calculus

    Find an equation of the tangent line to the given curve at the specified point: y=sqrt(x)/x+1, (4,2/5)

    asked by Amber
  256. Mountain multiplication

    I've been studying per-algebra on my own.. I've been told to use mountain multiplication,but, have never used that tool!

    asked by Fran
  257. Math

    find the average rate of change from 1 to x Find the average rate of change from 1 to 3 Using f(x) = -2x^2+6x

    asked by Olivia
  258. calculus

    Use integration by parts to find ∫ 2x e-x dx.

    asked by mikey2
  259. physics

    James Bond is trying to jump from a bridge and land on the first car of a moving train that is going to pass under the bridge. The train moves at 85 km/h and the vertical height between the bridge and the top of the carriage is 15 m. if Bond gets a running

    asked by Eduardo
  260. Math

    find the average rate of change from 1 to x Find the average rate of change from 1 to 3 Using f(x) = -2x^2+6x

    asked by Olivia
  261. polygon

    the angles of pentagon are(3x+5)(x+16)'(2x+9)'(3x-8) and (4x-15) find the value of x?

    asked by Cabdirizak
  262. math

    if my average is 88 percent. and if another grade is added, is it possible that my average would be the same

    asked by Angela
  263. calculus

    Integrate using the simplest method possible: ∫(t – 1)5(2t – 7)dt

    asked by susan/math
  264. MATH

    Radical equation, with a graphing calculator to the nearest thousandth?? 1 over /pi x-3+ sq2over/ 2.7x = 1.8??

    asked by shelby
  265. polygon

    the angles of pentagon are(3x+5)(x+16)'(2x+9)'(3x-8) and (4x-15) find the value of x? and hence find the measures of all the angles of pentagon?

    asked by Cabdirizak Cabdikarim
  266. valculus

    A new college textbook edition typically generates most of its sales in the year of its publication. Sales drop off in subsequent years as a result of competition from the used book market. Suppose that the annual sales of a particular textbook may be

    asked by clerkbob
  267. Trig

    Whats the height of a flagpole if a student stand 37feet from it and determines the angle of elevation to be 34degrees and her eyes are 5.3 feet from the ground(round to the nearest whole number)

    asked by David
  268. calculus

    Integrate using the simplest method possible: ∫(2t-3) ln⁡ t dt

    asked by susanmath
  269. English

    A worker can hear neighbors tapping on computer keyboards, making telephone calls, and muttering under their breath. Is this right or wrong?

    asked by Anon
  270. Grammar

    Who do the Democrats prefer? Whom do the Democrats prefer? Which sentence is correct ?

    asked by Dakota
  271. Life orientation

    What,according to the basic conditions of employment act applies with regard to the contravention that you have identified?

    asked by johannes
  272. Physics

    Two particles each have a mass of 5.5 10-3 kg. One has a charge of +4.8 10-6 C, and the other has a charge of -4.8 10-6 C. They are initially held at rest at a distance of 0.88 m apart. Both are then released and accelerate toward each other. How fast is

    asked by Anonymous
  273. math

    27b^8c^7 divided by 3bc^5

    asked by wan
  274. Statistics

    I am struggling with how to answer this. It seems not enough information is given so it is really hard to agree or to disagree. (this is uni statistics) Assume you are the Store Manager for Coles in Wagga at the beginning of December 2012. An accountant in

    asked by Lucinda
  275. math

    what is the index notation of 9^6 divided by 9^3

    asked by wan
  276. Algebra

    A ball is thrown into the air with an upward velocity of 28 ft/s. Its height (h) in feet after t seconds is given by the function h = –16t² + 28t + 7. How long does it take the ball to reach its maximum height? What is the ball’s maximum height? Round

    asked by Cassie
  277. algebra!!!

    At a museum, ticket prices are $13 for adults and $11 for children. If a tour group paid $179 for their tickets, how many people were in the tour group?

    asked by please help Ms.Sue!!!!