Questions Asked on
May 12, 2011

  1. Trig

    How can I find the exact value of Sin 480 degrees? Thanks

    asked by Rachal
  2. Chemistry

    How do you draw the lewis strusture for Cyanogen(C2N2)

    asked by Annie
  3. chemistry

    If you accidentally spill phosphorus-32 onto your shoe, how long would it take before 99.9 of the radioactive material has decayed so that you can safely wear the shoes again?

    asked by brittany
  4. Chemistry

    A water solution containing an unknown quantity of an unknown nonelectrolyte solute has a freezing point of -0.21 Celsius. What is the molality of the solution? Kf=-1.86C/m

    asked by Anonymous
  5. Chemistry

    What is the pH and pOH of a solution that was made by adding 400mL of water to 350mL of 5.0x10^-3 M NaOH solution?

    asked by Jackie
  6. Algebra

    Owners of a recreation area are filling a small pond with water. They are adding water at a rate of 25 liters per minute. There are 700 liters in the pond to start. Let W represent the amount of water in the pond (in liters), and let T represent the number

    asked by Rachal
  7. physics

    A 70 kg person sits on a 3.6 kg chair. Each leg of the chair makes contact with the floor in a circle that is 1.5 cm in diameter. Find the pressure exerted on the floor by each leg of the chair, assuming the weight is evenly distributed.

    asked by Alan
  8. Physics

    I've tried a bunch, have no idea. Got the first part, no idea on the second one. A basketball, of mass m = 0.45 kg is dropped, from rest, from a stationary hellicopter at a high altitude. Use g = 9.81 N/kg. (a) If air resistance is negligible, using energy

    asked by John
  9. Geometry

    Determine the slant height of a right pyramid whose lateral area is 90 ft^2 and whose base is a regular hexagon with a 3 ft side.

    asked by JOY
  10. IPC

    Ampere showed that parallel wires carrying current in opposite directions would ____ each other. a)attract b)repel i think its repel.. but not sure. help me understand please! thanks

    asked by help me...
  11. World Geography

    What words best describe the Baltic landscape?(there can be more then one answer) a. desert b. flat c. lowland d. marshland e. mountainous f. tropical I think its B E and F Can someone please help?

    asked by Courtney
  12. solid mensuration

    A parabolic trough is 3 meters long, one foot across the top and one foot deep. Find the volume of water in the trough in liters if it is filled to a depth of 6inches.

    asked by tommy
  13. science

    the moon's gravity is about one-sixth the gravity on earth. mar's gravity is about one half the gravity on earth. make a bar graph that shows your weight (95 lbs) in newtons on earth, moon, and on mars. A newton is equal to about one quarter of a pound.

    asked by nikki
  14. physics help!

    An electron enters the region of a uniform electric field between two oppositely charged parallel plates as shown, with an initial velocity of 3 x 106 m/s. The electric field between the plates is measured to be E = 200N/C. The horizontal length of the

    asked by UnKnown
  15. honors geometry

    a rectangle picture measures 12 cm by 30 cm. it is mounted in a frame 2 cm wide. fin the area of the frame.

    asked by kourtney
  16. Grammar-Capitalization

    True or False 1. A direct quote never begins with a capital letter. Answer: False 2. You should capitalize proper names only if they are part of a quotation. Answer: False 3. Familiar titles, such as uncle, are capitalized when used with a proper name.

    asked by Leslie
  17. physics

    An inflated basketball has a gauge pressure of 9.0 lb/in^2. What is the actual pressure inside the ball?

    asked by Alan
  18. solid mensuration

    A cylindrical tin can holding 2 gal.has its height equal to the diameter of its base.Another cylindrical tin can with the same capacity has its height equal to twice the diameter of its base. Find the ratio of the amount of tin required for making the two

    asked by jan
  19. Algebra 2

    If log10^9=0.95 and log10^2=0.30, find the following: 1. log10^9/2 2. log10^3 3. log10^36 4. log10^20/9 5. log10^900 6. log10^1/9 7. log10^1/2000 8. log10^162 I need to see all of the steps. Thanks

    asked by Brandon
  20. help help physics

    An electron enters the region of a uniform electric field between two oppositely charged parallel plates as shown, with an initial velocity of 3 x 106 m/s. The electric field between the plates is measured to be E = 200N/C. The horizontal length of the

    asked by H.T
  21. physics

    An electron enters the region of a uniform electric field between two oppositely charged parallel plates as shown, with an initial velocity of 3 x 106 m/s. The electric field between the plates is measured to be E = 200N/C. The horizontal length of the

    asked by H.T ( helppppppp)
  22. Grammar-Capitalization

    What should be capitalized. the child rode his bicycle to delaware street where an old model ford ran a stop sign and hit him. the accident occurred on may 8, last friday. Answer: The child rode his bicycle to Delaware Street where an old model ford ran a

    asked by Leslie
  23. grammar

    Choose the best answer: 1. The L-1, along with the L-3 and L-4, ( show, shows, showing ) some sign of degeneration. Answer: show 2. She did not know (whom, who, whomever) to see about the recurrent congestion. Answer: who 3. The patient's physician

    asked by Leslie
  24. comper science

    write a program that accept the name of a student score obtained in 5 courses and compute the average score of the student.your program must display the name of that student on tab 5

    asked by martin
  25. Grammar

    Choose the best answer: 1.The number of spurs ( 'is', 'are', 'am') not identifiable. Answer: are 2. One of the injection sites on the biceps ( seem, seems, seeming) inflamed. ANSWER: seems 3. Digital examination of the lungs ( reveals, reveal, revealing)

    asked by Leslie
  26. math

    Because of the prevailing winds, a tree grew so that it was leaning 6° from the vertical. At a point 100 feet away from the tree, the angle of elevation to the top of the tree is 22°55'

    asked by Anonymous
  27. Grammar-Capitalization

    What should be capitalized. the child was picked up by jefferson ambulance company and taken to general hospital emergency room. dr. hank was the first to see him. Answer: The child was picked up by Jefferson Ambulance Company and taken to General Hospital

    asked by Leslie
  28. chemistry

    Do strong acid strong base titrations have a buffer region?

    asked by jam
  29. geometry

    How do you find the lateral and surface area of a right triangular right prism. Base 8in by 6in by 10in and height 9 in.

    asked by JOY
  30. Finance, Economics

    A small vessel (this means 10 year life) was purchased by a chemical company for $55,000 and is to be depreciated by MACRS depreciation. When its requirements changed suddenly, the chemical company leased the vessel to an oil company for 6 years at $10,000

    asked by Katy Marshall
  31. Math

    Triangle ABC is circumscribed about circle O and D,E, and F are points of tangency. If AD= 5, EB= 5 and CF= 10, find the lengths of the sides of the triangle and show that the triangle is isosceles

    asked by Brianne
  32. geometry

    A cone is topped with a hemisphere. Calculate the total surface area if the radius of the cone and hemisphere is 10 cm and the height of the cone is 24 cm.

    asked by JOY
  33. Grammar-Capitalization

    True or False 1. The sord South is always capitalized. Answer: False 2. The word doctor is capitalized if you are addressing the doctor as such, as in "Hello Doctor." Answer: True

    asked by Leslie
  34. Grammar

    Good morning Example: re: word work up The doctor will *work up* the cause of her abnormal hear rhythm. (verb) During his *workup* for this tumor, he was found to have an abdominal aortic aneurysm. (noun) Question: The work up revealed the surface was of

    asked by Leslie
  35. Grammar-Capitalization

    What should be capitalized? we sent him immediately to radiology and will speak with mrs. farrel when she arrives. Answer: We sent him immediately to Radiology and will speak with Mrs. Farrel when she arrives. Note: there is a rule related to departments

    asked by Leslie
  36. Algebra 2

    Express as a logarithm of a single number or expression: 1. 5log4^p+log4^q 2. log10^x-4 log10^y 3. 4log3^A-1/2 log3^B 4. log5^M+1/4 log5^N 5. log2^M+log2^N+3 6. log5^x-log5^y+2 7. 1-3 log5^x 8. (1+log9^x)/2 I need to see all of the steps. Thanks

    asked by Brandon
  37. English

    1. Select the letter that indicated the correct modifier in the following sentence. A. The young Arnold Schwarzenegger may have been one of the ________ people in the U.S. A. strongest B. most stronger C. stronger D. most strongest I think it's D? 2.

    asked by anthony
  38. Grammar-Capitalization

    What should be capitalized? this patient is a black female of canadian descent who would like to be tested for human immunodeficiency virus. Answer: This patient is a black female of Canadian descent who would like to be tested for Human Immunodeficiency

    asked by Leslie
  39. Grammar

    Choose the best answer. 1. Histologic sections of the appendix (show, shows, showing) acute and chronic periappendicitis charaterized by a mixed acute and chronic inflammatory infiltrate on the serosal surface associated with hemorrhage, vascular

    asked by Leslie
  40. chemistry

    Calculate the pH of the solute in an aqueous solution of 0.0047 M codeine, if the pKa of itsconjugate acid is 8.21. What is the percentage protonation of the solute?

    asked by vivian
  41. Algebra 2

    Identifying Conics. Put equation in standard form and graph. 9x^2-4y^2-90x+189=0

    asked by Marie
  42. physics

    How will changing charge change the equipotential at a distance of 2 meters?

    asked by ashley --- HELP PLEASEE!!!
  43. pre cal

    can someone please show me how to verify this identity? (sec x/csc x minus cot x) minus (sec x/csc x + cot x)= 2 csc x

    asked by Vania
  44. math

    Given: ; CE=CA ,EB AND AD are medians Prove: EB=AD 2.)Write a paragraph proof. Given: AC bisects

    asked by Anonymous
  45. grammar

    Select the sentence that does NOT have an agreement error. a. Patient has had no loss of consciousness, has no headache, and there is no pain in neck. b. Patient has had no loss of consciousness, has no headache, and has no pain in neck. c. Patient has had

    asked by Leslie
  46. honors geometry

    Find the area of the shaded region. diagram is a rectangle with 10 height and 17 base. there is a triangle inscribed that is not shaded. its a little confusing and im supposed to assume 30-60 -90 triangles??

    asked by kourtney
  47. Grammar-Capitalization

    What should be capitalized? she had a test sometime in november at a walk-in clinic and it was negative. Answer: She had a test sometime in November at a walk-in clinic and it was negative.

    asked by Leslie
  48. Grammar-Capitalization

    What should be capitalized? we will send her to hematology so a full blood screen can be done, and then we will follow up with her next thursday. Answer: We will send her to Hematology so a full blood screen can be done, and then we will follow up with her

    asked by Leslie
  49. Algebra 2

    Simplify: 1. 2log10^5+log10^4 2. 2log3^6-log3^4 3. log4^40-log4^5 4. log4^3-log4^48 I need to see all of the steps. Thanks

    asked by Brandon
  50. art

    Toward the end of the twelfth century, the Japanese emperor and his court were supplanted by a warrior society in Japan. This Shogunate governance period was also marked by the rise of the Zen Buddhist religion. These developments, especially the power

    asked by n gibs
  51. comm 155

    In the article that we read on page 37, the author was trying to explain how everyday life can be stressful. As far as meeting his goal, I think that he could have done a much better job. They did give a few examples of everyday annoyances, but not of how

    asked by worm
  52. Chemistry

    why is a weak acid weak base titration different from strong acid strong base/ weak acid strong base/strong acid weak base?

    asked by lucia
  53. chemistry

    What is the pH of 8.94 × 10−6 M HCN(aq), ignoring the effect of the autoprotolysis of water? 1. 7.17923 (basic; thus not reasonable) 2. 6.03594 3. 7.30027 (basic; thus not reasonable) 4. 5.50032 5. 7.38101 (basic; thus not reasonable) 6. 5.18207 7. None

    asked by vivian
  54. Grammar-Capitalization

    What should be capitalized? she was in the south helping rebuild grace community center when a man cut his hand with a saw and she helped him stem the bleeding. Answer: She was in the South helping rebuild Grace Community Center when a man cut his hand

    asked by Leslie
  55. Maths,Science,Life science,Agri science.LO & Langu

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

    asked by Mixo
  56. Chemistry

    Calculate the molarity (M) of a solution of the strong acid HNO3 if the hydroxide ion concentration is 2.17E-12 M.

    asked by Anonymous
  57. statistics in psychology

    An analysis of the combined SAT scores (Verbal + Math) of a sample of psychology majors at one school indicated that the mean was 939 and the standard deviation was 166. Show your calculations used the answer the following two questions. a. A special

    asked by freddy
  58. stat

    If you test the (one sample) null hypothesis that the population proportion p ¡Ü 0.3 and you get the test statistic value of z = -0.98, then using a 5% ignificance level, Question 18 options: the alternative hypothesis looks believable. the null

    asked by Anonymous
  59. Astronomy

    In what ways do Earth and the moon move through space? How do these motions produce such phenomena as day and night, the seasons, phases of the moon, and eclipse?

    asked by Peter
  60. Grammar

    Select the sentence that does NOT have an agreement error. a. The thumb was initially casted for 3 days and then has been splinted for 3 weeks. b. The thumb was initially casted for 3 days and then splinted for 3 weeks. c. The thumb was initially casted

    asked by Leslie
  61. Grammar-Capitalization

    What should be capitalized? the child's mother was immediately contacted at general licensing, inc,. where she is employed. Answer: The child's mother was immediately contacted at General Licensing, Inc., where she is employed. thanks

    asked by Leslie
  62. help fast ,( physics)

    What is the net electrostatic force on the charge q3 (-48ìC), due to charges q1(+78ìC) and q2 (+50ìC)?

    asked by UnKnown
  63. Chemistry

    A 1.00 L sample of a pure gas weighs 0.785 g and is at 733.4 torr and 29.2 degree celcius. a) what is the molar mass of the gas? b) if the volume of the temperature are kept constant while 0.400 g of the same gas are added to that already in the container,

    asked by Lauren
  64. College Chemistry

    What mass of ice, at 0.00 C can be converted to steam, at 100 degrees C, if it absorbs 1.00 x 10 (to the 6th power) Jules of heat energy? How do you find the mass of ice?

    asked by Eileen
  65. Life orientation

    Describe the life style disease/behaviour and explain 5(or more) factors that contribute to the disease.

    asked by Judith
  66. English

    1. Which sentence is NOT correct? A. Wishing he were someplace else, he walked to the podium to give his speech. B. Having listened to the weather report, the principal will decide when to close the school. C. The new French restaurant, with its fine

    asked by anthony
  67. geometry

    find the angle of wlevation of the sun when a 12.5 meter tall telephone pole casts an 18 meter long shadow?

    asked by Alma
  68. solid mensuration

    The base of a right prism is a rhombus whose sides are 20cm and the shorter diagonal is 24in..find the area pls.

    asked by leo
  69. chemistry

    From the indicated voltages for the voltaic cell pictured, determine the standard electrode potential, E°M3+/M, if the metal, M, is each of the following. description on the image: in the left beaker there is one Cr3+ and one Cr2+ on the right beaker

    asked by Hannah
  70. calculus

    a.) Given y=square root of (x) and y= (x) Find the area between two curves from x=0 to x=1 by integrating with respect to x (top-bottom) I'm more concerned about this one though: b.) Now integrate with respect to y given between y=0 and y=1 Do I just graph

    asked by Jill
  71. chemistry(Acid&Base)

    Calculate the solubility product of calcium hydroxide if the solubility of Ca(OH)2(s) in water at 25◦C is 0.011 M. Choices: 1. 1.1 × 10−5 2. 5.3 × 10−6 3. 2.7 × 10−6 4. 1.5 × 10−8 5. 1.2 × 10−4

    asked by vivian
  72. maths

    The variation in size from year to year of a particular population can be modelled by an exponential model with annual proportionate growth rate 0.1246. The size of the population at the start of the initial year is 360. Choose the TWO options that give,

    asked by albert
  73. Grammar-Capitalization

    Determine if the following words are capitalized correctly. If the capitalization and presentation is correct, leave the word as it is. If incorrect retype the word correctly. 1. cherokee 2. pepsi-cola 3. American dental association 4. ADA 5. wednesday 6.

    asked by Leslie
  74. math

    Given the plane 2x-3y+7z=4, a) Find the equation for the line perpendicular to the plane that intersects the plane at the point P=(6,5,1). b) How far is it from the point (4,-2,3) to the plane?

    asked by sophie
  75. Grammar

    Select the sentence that does NOT have an agreement error. a. Improving balance and coordination of the lower extremities, I gave him some exercises. b. These treatments consisted of balance and coordination exercises to improve balance and coordination of

    asked by Leslie
  76. Grammar-Capitalization

    What should be capitalized? she fears she may have come in contact with hiv last fall when she was on a mission with her friend, reverend miller. Answer: She fears she may have come in contact with HIV last fall when she was on a mission with her friend,

    asked by Leslie
  77. Astronomy

    Only one side of the moon is visible from Earth because... A. the moon does not rotate on its axis. B. the moon does not revolve around Earth. C. the moon rotates faster than it revolves. D. the moon revolves once and rotates once in the same period of

    asked by James
  78. Math

    Help to solve problem A cube has an edge length of d. Point C is at the center of the top face of the cube. express the length of the path from vertez to vertex B to the center point C in terms of d. Use the idea that the square root of (N X N). Estimate

    asked by Ale
  79. honors geometry

    find the area of a triangle where sides are 25, 25 and 14

    asked by kourtney
  80. Math

    A bag contains forty coins, all of them either 2c or 5c coins. Let there be x 2c coins and y 5c coins. If the value of money in the bag is $1.55, find the number of each kind.

    asked by AJ
  81. physics

    a positive charge of 4x10^6c experiences a force of 2n acting to the right.what is the magnitude and direction of the eletric field at this point?

    asked by Anonymous
  82. Organic Chem

    what is the product when 2-methylbutanal is treated with cold base?

    asked by Adam
  83. Physical Science

    when you operate a machine, is often easy to observe cause and effect. for example, when you turn a doorknob, the latch in the door moves. give five examples of machines and describe one cause-and-effect pair in the action of each machine.

    asked by Rodolfo
  84. trigonometry

    Find the sum of all of the solutions to the equation cos(2x) - sin2(x) - 1 = 0 in the interval 0 < x < 5 pi. (Use radian measure for x.) (A) 15pi (B) 0 (C) pi (D) 10pi (E) None of the above.

    asked by lan
  85. Calculus

    Find the centroid of the region bounded by the curve sin x on the interval (0, pi) and the x-axis. Please help

    asked by AJ
  86. Grammar

    Select the sentence that does NOT have an agreement error. 1.a. After the walk he developed some sharp chest pains and was helped with a nitroglycerin tablet. b. After the walk he developed some sharp chest pains and apparently were with a nitroglycerin

    asked by Leslie
  87. Eglish

    I forgot to include these sentences on the same theme. I hope you can check them too. Thank you. 1) At the school of languages he meets three professors who are meditating on how to improve their own country. 2) The first project they are working on is

    asked by Henry1
  88. Grammar

    Select the sentence that does NOT have an agreement error. a. Presently he reports he is pain free and they deny any tingling or numbness in the right lower extremity. b. Presently he reports he is pain free and denies any tingling or numbness in her right

    asked by Leslie
  89. Grammar-Capitalization

    What should be capitalized? she was able to take him home but should make an appointment with bethel pediatric group as soon as possible. Answer: She was able to take him home but should make an appointment with Bethel Pediatric Group as soon as possible.

    asked by Leslie
  90. Physics

    Helium is supplied in pressure tanks. If I have a 10 liter tank at 200 atmospheres of pressure, how many 3 liter balloons can I fill? (Assume the balloons are at one atmosphere)

    asked by maggie
  91. Emily

    Iddetifying Adverbs, need to find all adverbs in the sentences below some might not have any. 1. There is a big sale at the mall. Is no adverb 2. She fells happy when she finds a real deal. Is no adverb 3. If you want a good deal, stay close to Denicece.

    asked by English
  92. english

    Can you check my grammar? should I remove the apostrophies in the following sentences? " The apostrophies in Gloria's name" Q1.Gloria has paid more than half of the cost of keeping up on her home, and her qualifying dependent. Q2.Gloria benefits by having

    asked by icelocsgirl
  93. Physics

    A Saturn V rocket with an Apollo spacecraft attached has a combined mass of 2.1 105 kg and will reach a speed of 11.2 km/s. How much kinetic energy will it then have?

    asked by Ashley
  94. geometry

    Calculate the lateral and surface areas of a prism whose height is 12 cm and whose base is a rectangle with dimensions 5 cm by 7 cm.

    asked by JOY
  95. teacher aide

    Children with a language or speech disorder are A sometimes suffering from an aphasia B always learning challenged C able to receive special help only after the third grade D unable to use communication boards I need help

    asked by Karrie
  96. geometry

    ABCD is an isosceles trapezoid. mAngle SymbolABC= 3x+10 and mAngle SymbolBAD=4x-5. Solve for x.

    asked by benajmin
  97. geometry

    Calculate the lateral area and surface area of a pyramid whose height is 8 ft and whose base is square with 12 ft sides.

    asked by JOY
  98. math

    Barb has twice as many books as Lisa. Mike has 25 more books than Lisa, but 15 fewer than Barb. How many books each student has?

    asked by kim
  99. physics

    If an equal force acts on the following objects, which will have the greatest acceleration: 1) a golf ball 2) a football 3) a soccer ball 4) a baseball

    asked by Nancy
  100. Government

    Authority possessed by both the state and national government that may be exercised separately and simultaneously are called...... powers. These powers may not be exclusively within the scope of the national power or in conflict with the national law.

    asked by Ed
  101. plagiarism workshop

    Now that you have developed an in-text citation for a summary, paraphrase, and a direct quote, and created a reference for the paragraph provided in Exercise 2, reflect on the thought processes you used for each aspect. How did your approach differ when

    asked by bb
  102. pre calc

    write the form of the partial decomposition for the given rational expression. Don't solve for constants: 8x+10/x^2+7x-18 please show work!

    asked by esora
  103. Life orientaion

    Two institution / community organisation that are involved in surpporting or giving redress to these disaster

    asked by Mbilwi
  104. calculus

    The distribution of the time taken to run 1000 metres by users of a treadmill in a sports centre has mean 7.2 minutes and standard deviation 2.045 minutes. 1 Choose the option that is closest to the probability that the mean time taken to run 1000 metres

    asked by peter
  105. solid mensuration

    Find the volume of water in the horizontal tank if it is 7/8 full. Radius of the tank is 600mm. and the lenght of the tank is 5m. If the tank is place in a vertical position, what is the depth of water inside the tank?

    asked by leo
  106. research paper

    • Write a 1,050- to 1,400-word research paper in which you identify the linguistic, political, social, economic, religious, and familial conventions or statuses of four Hispanic groups living in the United States. Your paper must address Mexican

    asked by Cheryl
  107. Math

    Expand (2x+5y)^6

    asked by Megan
  108. physics

    A red car with a 70kW engine and a mass of 1335kg accelerates at full power for 2s from rest along a level stretch of road heading east before going down a 3m high hill. The driver puts the car in neutral to accelerate as they coast down the hill. Some

    asked by Hadeel
  109. accouting

    5. Compute the price of $3,461,181 received for the bonds by using the tables of present value in Appendix A. (Round to the nearest dollar.) Your total may vary slightly from the price given due to rounding differences. Present value of the face amount $

    asked by johnetta
  110. Geometry

    Find the measure of each angle. Sin B=0.7245 Could anyone give me the step to solve these type of problems? Thanks

    asked by Shadow
  111. English

    I really need you to check this sentence. I included a few examples on phrasal verbs I'm not sure of. 1) The projector complains that it had been a very dear season (the stock was low/there had been a shortage of cucumbars/ in the growth??? of cucumbers)

    asked by Henry1
  112. Algebra 2

    Show that the following numbers are irrational: 1. sqrt3 2. sqrt6

    asked by Brandon
  113. physics

    The change in electrostatic potential energy at a point when an electron is brought from infinity to that point is deltaE.What is the change in electrostatic potential energy if the electron is moved through a distance d from this point?

    asked by Sandhya
  114. Reading

    5 things to tell a 4 grade about math mcas?*2 pieces o advice for getting ready?

    asked by Frances
  115. Current Issue

    Post a summary of a current issue between Native Americans and the federal government. Identify the legislation that you think is linked to the issue and explain why you think there is a connection

    asked by Cheryl
  116. photography

    proporton

    asked by c.f
  117. Physics

    Two students are on a balcony 20.5 m above the street. One student throws a ball (ball 1) vertically downward at 11.1 m/s; at the same instant, the other student throws a ball (ball 2) vertically upward at the same speed. The second ball just misses the

    asked by Rachel
  118. Government

    What are three powers found in the executive branch and three powers found in the legislative branch? Using the concept of checks and balance describe how the branches interact. Use a current event to illustrate that interaction.

    asked by Olivia
  119. Chemistry

    Argon-39 decays to become Potassium-39. write the nuclear equation.

    asked by John D
  120. geometry

    find the area of a triangle where sides are 25, 25 and 14

    asked by kourtney
  121. Chemistry

    what is the pH range of the buffering region? is that when ph=pKa?

    asked by Tom
  122. Math

    What is the area of a square with a diagonal length of 15 times the square root of 2?

    asked by Britt
  123. Maths

    A psychological test was given to 92 teenage boys and 68 teenage girls. The test was used to assign a score to each teenager, measured on the ‘worry scale’ – 0 (not worried) to 100 (very worried). A summary of the results is given in the table below.

    asked by Tony
  124. honors geometry

    find the area of a triangle whose sides are 25,25, and 14

    asked by kourtney
  125. honors geometry

    find the area of an isosceles triangel with hypothenues 18

    asked by kourtney
  126. health

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

    asked by Ndivhuwo
  127. maths

    A sequence is defined by un = 2×(−0.5)n + 3 (n = 1,2,3, . . .). Choose the option that best describes the long-term behaviour of the sequence. Options A un becomes arbitrarily small (that is, un → 0 as n→∞). B un becomes arbitrarily large and

    asked by albert
  128. English

    1. Which sentence is NOT correct? A. Anita would rather spend time with her daughter than with anyone else. B. My little brother told me that North Dakota is less densely populated than any other state. C. Jaime had more fun in Los Angeles than anywhere

    asked by anthony
  129. MAth

    I am working a percent change word problem- 340 employees total and 56 laid off.? percent of decrease in employees. 340-56= 284 284 divided by 340 = 0.835 = 83% the book has an answer of 16% what am I missing or is the book incorrect?

    asked by Caroline
  130. Physics

    Explain why objects experience a buoyant force when immersed in a fluid. How can you find the value of the buoyant force?

    asked by Peter
  131. Algebra

    Please help-What is the equation of the ellipse with foci (0,6), (0,-6) and co-vertices (2,0),(-2,0) Please explain the steps because I have 5 to do for homework-Thank you-I'm really stuck on this

    asked by Jodi
  132. honors geometry

    find the area of an eqilateral triangle with perimeter 45m

    asked by kourtney
  133. Math

    When estimating 4,629 + 6,331 do I round up the thousands to 5,000 + 6,000 or do i round to the hundreds, 4,600 + 6,300? Thank you in advance.

    asked by Renee
  134. References

    Select the letter of the source one could use to locate the answer to the following question. What offices, elected or appointed, were held by John Quincy Adams before he became president? A. Dictionary of American Biography B. Americana Annual C. The

    asked by anthony
  135. Organizational Ethics and Social Responsibility

    Does organizational culture influence organizational values more than organizational values influence organizational culture?

    asked by Anita fields
  136. Chemistry

    what is the relative humidity if there is .5 moles of water vapor per 100 liters of air at 40 degrees celcius?

    asked by Amy
  137. Geometry

    how do you find the surface are of a cone whose radius is 10cm and height 24 cm.

    asked by Mary
  138. History

    I need to write a one page extended response for the supporters of the Vietnam War. I was wondering if you could give me an idea of how to start it and a "guideline" becaseu I am really desperate

    asked by Jason
  139. math

    what is correcting quotients

    asked by kaylee
  140. biology

    can alcohol go through a visking tubing?

    asked by anne
  141. english

    what are 5 ways portia and calpurnia are alike and 5 ways they are different from each other. the story is the tragedy of julius caesar.

    asked by randi jo
  142. math

    what is the area of a circle if the raduis is 39 cm long?

    asked by shania
  143. maths

    The variation in size from year to year of a particular population can be modelled by an exponential model with annual proportionate growth rate 0.1246. The size of the population at the start of the initial year is 360. Choose the TWO options that give,

    asked by albert
  144. English

    Hello. I want to ask if "to end the peace process" is the same as "to stop the peace process". Thank you.

    asked by Ilma
  145. Algebra

    This equation is incorrect because when we multiply an exponent into a bracket we multiply it with the exponents of the terms inside the bracket. The correct equation should be: (xy)^3 = x^3y^3

    asked by shelly
  146. Calculus

    Using 3(x-3)(x^2-6x+23)^1/2, as the chain rule differentiation of f(x)=(x^2-6x+23). Please explain how I find the general solution to the differential equation dy/dx= 2/27(x-3)SQUARE ROOT BEGINS (x^2-6x+23)/y SQUARE ROOT ENDS (y>0). In implicit form I have

    asked by Tony
  147. maths

    give the solution of the initial-value problem dx/dy=(1+2cos^2(x))/y, (y > 0), y= 1 when x = 0. Thanks.

    asked by olek
  148. Statistics

    Suppose I reported the length f a book shelf to be 2.12 meters. What range would you expect the actual length of the bookshelf to lie in?

    asked by robert
  149. Chemistry

    Determine the solubility of FeS at 25 degrees Celsius

    asked by Evie
  150. English

    I'm sending you the sentences I'm most doubtful about. Thank you. I included my doubts in parentheses. 1) At the school of languages he meets three professors who are meditating on how to (?) improve their own country. 2) The first project they are working

    asked by Henry1
  151. chemistry

    if you have a gas sample that has a mass of .993g occupying .570L. Given the temperature is 281K and the pressuere is 1.44 atm, what is the molar mass of the gas?

    asked by Haleigh
  152. Chemistry

    Will CuCI2+Na2SO4->CuSO4=NaCI2 precipitate and how can you determine this?

    asked by Tiana
  153. physics

    What is the Bragg Scattering angle (i.e. the angle, in degrees, between the incoming incident beam and the reflected beam) for electrons scattered from a nickel crystal if their energy is 85 eV? The spacing between Ni Bragg planes is 0.215 nm. Give your

    asked by kaka
  154. Government

    Authority possessed by both the state and national government that may be exercised separately and simultaneously are called________ powers. These powers may not be exclusively within the scope of the national power or in conflict with the national law.

    asked by Ed
  155. Organizational Ethics and Social Responsibility

    analyze the following ethical scenario: You are attending a National Covention in San Luis Opisbo for work. This is a convention that is annually attended by representatives from your employer and this is your first time attending. The convention

    asked by Anita fields
  156. Life orientation

    Way in which the human or environment problem impact on the community.provide relevant sources to support your claims

    asked by Judith
  157. physics

    How will changing the charge change the electric field strength at a distance?

    asked by ashley --- HELP PLEASEE!!!
  158. physics

    How are electric potential and electric field strength related?

    asked by ashley --- HELP PLEASEE!!!
  159. economics

    what cause the financial crisis that occurred in 2008

    asked by lina
  160. math

    5m = ? km

    asked by katherine
  161. maths

    solve 4x-3y-6=0; x+3y-9=0 graphically

    asked by kirthana
  162. chemistry

    how do you calculate grams of KCL in 3 litres of a 5% solution? (scientific notation)

    asked by Denise
  163. geometry

    Determine the surface area of a label that covers the lateral surface of a cylindrical can with height 40 mm and diameter 24 mm.

    asked by JOY
  164. science

    What is the average force given to an object by the current of bangladeshi rivers?

    asked by Shuhan mirza
  165. geometry

    How do you calculate the lateral and surface areas of a cone whose height is 12 in and whose slant height is 15 in.

    asked by JOY
  166. science

    What is the average force given to an object by the current of bangladeshi rivers?

    asked by Shuhan mirza
  167. english

    how make a tepee

    asked by rod
  168. math

    how i draw the tessellating pattern using a rhombus

    asked by rod
  169. english

    can u make me sentences use the word of send

    asked by rod
  170. geometry

    Calculate the surface area of a sphere whose diameter is 50 cm.

    asked by JOY
  171. Sociology

    Hi This is my essay question and I don't know how to start this essay I am not sure what is required of me, Please help. "Durkheim argues that society is held together by sets of norms which are transmitted to us by social institutions like the family and

    asked by Jane
  172. CHEMISTRY

    HOW MANY MOLECULES OF CARBO DIOXIDE CO2 WILL BE PRODUCED WHEN 75 GRAMS OF GLUCOSE C6H12O6 ARE COMPLETELY OXIDIZED

    asked by RT
  173. math

    write the decimal for the fraction 6/12?

    asked by sam
  174. chemistry

    AQUEOUS SODIUM HYDROXIDE IS ADDED TO SAMPLE X AND IS WARMED A GAS EVOLVES HCL WHAT IS THE EQUATION

    asked by Anonymous
  175. algebra data analysis

    kenneth has a mean score of 8 points in the first three quarters of a basketball game. how many points must he score in the last quarter of the game to raise his mean score to 10 points?

    asked by tiara
  176. algebra

    5|2x-5|=15

    asked by Z
  177. algebra

    8^(x+5)=32^(x-9)

    asked by Z
  178. math

    5-m=3 1/8 how do I work this problem out?

    asked by Rebecca
  179. science

    Whats a good reason for dissecting a heart and what would be the purpose?

    asked by Ben
  180. math

    convert 56.7 into degrees, minutes and seconds

    asked by jess
  181. English

    Can you check these two sentences , please? I teach (German) to students who specialize in applied sciences. She requested me to print the document. They feared ther father would scold them if he found (caught) them playing in that field. She promised (to

    asked by Henry1
  182. Algebra 2

    Use the factor theorem to determine whether the binomial is a factor of the given polynomial. 1. t+sqrt2; P(t)=t^5+t^4+4t+4 2. z-i; P(z)=z^7+z^6+z^5+z^4+z^3+z^2+z+1 3. z+2i; P(z)=z^3+z^2+4z+4 Thanks

    asked by Brandon
  183. Algebra 2

    Find the number of times r is a root of P(x)=0. 1. P(x)=x^4+4x^3-16x-16; r=-2 2. P(x)=x^5+3x^4+2x^3-2x^2-3x-1; r=-1 3. When x^3-5x^2+4x+5 is divided by x-c, the quotient is x^2-3x-2 and the remainder is 1. Find c. Thanks

    asked by Brandon
  184. science

    what about a type of solution got when 185gm sodium iodide dissolved in 100ml of water

    asked by suda
  185. English

    I have a last doubt. Thank you I taught to my students (or my students?) how to speak? I'll write to you soon. I can't understand why in English the indirect object is not always preceded by "to". Can you give me examples? Thank you. He gave his life to

    asked by Henry1
  186. maths

    Choose the THREE options that define sequences that do not converge. Options A P0 = 40, Pn+1 − Pn = 2.8 Pn (1− Pn/300) (n = 0,1,2, . . .) B P0 = 100, Pn+1 − Pn = 0.7Pn (1− Pn/480) (n = 0,1,2, . . .) C P0 = 250, Pn+1 − Pn = 2.4Pn (1− Pn/420) (n

    asked by albert
  187. acrostic poem

    i need a arostic poem for my name. Can u help me . My name is SATNAM. Can u finish the poem up thanks S - Sad A T N A M

    asked by Satnam
  188. Algebra

    what does the sigma notation look like for the sequence 1/4,-1/9,1/16,-1/25

    asked by Dan
  189. math

    convert 56.7 into degrees, minutes and seconds

    asked by jess
  190. English

    I have a last doubt. According to your exlanations: I gave him the book/or the book to him. BUT I wrote him the letter(or the letter to him. BUT I wrote to him. (is also possible) She explained to me how to get there.

    asked by Henry1
  191. maths

    The variation in a population is modelled by the recurrence relation (Jn+1 0.9257 0.0208) (Jn) + (0.014) (An+1 0.0661 0.9767) (An) (0.056) where Jn and An are the sizes, in millions, of the subpopulations of juveniles and adults, respectively, n years

    asked by albert
  192. Teacher

    I'm having problems with this question. In a regular school, the mainstreaming\inclusion technique is A used only with visually impaired students B often impossible with behavior disordered students C frequently a positive experience for regular students D

    asked by Rosie
  193. English

    Which is correct.. Who does the play have as its star? or Whom does the play have as its star? Thank you.

    asked by dee
  194. pirate history

    What weapons did the Barbary Corsairs use?

    asked by liz
  195. statistics

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

    asked by Mae
  196. maths

    The function f is given by ln(e^x − e ^−x) (x > 0). By applying in turn the Composite and Quotient Rules, calculate that gives an expression for each of the following. 1. f!(x) 2. f!!(x)

    asked by olek
  197. statistics

    what is the critical value of this statistic at 0.05 significance.....z=1.64

    asked by scott
  198. statistics

    what is the critical value of this statistic z=1.64 at 0.05 significance?

    asked by scott
  199. math

    If a test has ninety questions on it what percentage must be correct to past?

    asked by 00katt
  200. english

    what are 6 reasons why bullying is a problem?

    asked by majenta
  201. education

    what are strategies that a concerned parent can us to help improve his or her child's reading and writing skills

    asked by dj
  202. English

    A question on my previous post: is that a mistake to say "he requested me to leave" Can't "request" be followed by "someone to do something"? Can I write the summary below in the present tense though the chapter is in the simple past? 1)The first person

    asked by Henry1
  203. Algebra

    Find the domain and range of the relation and state whether or not it is a function. {(1,3) (2,3)(3,3) (4,3)}

    asked by Michael
  204. english

    compare the twp wives , portia and calpurnia in the tragedy of julius caesar?

    asked by randi jo
  205. chemistry

    Calculate the E° for each of the following reaction. Decide whether each is product-favored in the direction written 2 Cl-(aq) + Cu2+(aq) --> Cu(s) + Cl2(g) i got -1.020 but its wrong and i do not know why.

    asked by Hannah
  206. English

    Hello. Will you please tell me if it is possible (and natural) to say: 1) The UN put into effect sanctions against Iran. 2) The UN put sanctions into effect against Iran. 3) The UN put sanctions aganist Iran into effect. 4) The UN brought sanctions against

    asked by Ilma
  207. science

    What is the role of detritovores in food webs and are they important? What are some examples of detritovores?

    asked by Anonymous
  208. Physical science

    Why each of the above components is necessary to construct a circuit in which charge flows

    asked by Electricity:providing energy
  209. math

    Would you measure the length of a stapler in inches or in feet? Explain your answer

    asked by antoy
  210. grammar

    i like chocalate she likes butterscotch

    asked by Anonymous
  211. trigonometry

    what is the value of x in the equation x= 3sqrt root (-245)-1/5 to the nearest hundreds

    asked by lan
  212. science

    The enzyme that opens up the DNA double helix during replication.?

    asked by madi
  213. english

    please help me to write an assey on family's promblems.

    asked by Myk
  214. Ann

    Need to correct the punctuation for each sentence. then right if it is declarative, interrogative, imperateive, or exclamatory. 1. What a strang name that is. Answer=dec 2. Some mushrooms are very poisonous! Answer=exclamatory 3. Don't eat that mushroom!

    asked by English
  215. pysical science

    how do you find the density of a solution where the mass=60.75gms and the volume=45ml

    asked by len
  216. Math

    Rectangle with a diagonal length oh 26m and height of 10m

    asked by Britt
  217. chem

    how many moles of ca are needed to neutralize 8.87moles of H3po4

    asked by Anonymous
  218. science

    DNA is copied during a process called.?

    asked by madi
  219. physics

    How will changing the distance change the electric field strength for a given charge?

    asked by ashley --- HELP PLEASEE!!!
  220. criminal justice

    waht type of interview structure would you use?

    asked by reyna
  221. calculus

    Let f be the function defined by f(x)=x^3+x. If g(x)=inverse function of x and g(2)=1, what is the value of g'(2)?

    asked by Anonymous