Questions Asked on
March 26, 2015


    A diver leaves a 3-m board on a trajectory that takes her 2.7m above the board and then into the water 2.9m horizontally from the end of the board.At what speed did she leave the board?At what angle did she leave the board?

    asked by PLS HELP!!
  2. Physics

    A diver leaves a 3-m board on a trajectory that takes her 2.8m above the board and then into the water 2.7m horizontally from the end of the board.At what speed and angle did she leave the board?

    asked by Sarah
  3. Math

    An experiment consists of rolling two fair number cubes. What is the probability that the sum of the two numbers will be 4?

    asked by z.m
  4. Algebra

    If a quadratic equation with real coefficients has a discriminant of 225, the what type of roots does it have?

    asked by Zayn
  5. Math

    A 40-foot by 10-foot rectangular garden is enclosed by a fence. To make the garden larger, while using the same amount of fencing, its shape is changed to a square. How many square feet larger than the old garden is the new garden?

    asked by Jenna
  6. chemistry

    7. Calculate the density of hydrogen sulfide, H2S, at 56 ºC and 967 mmHg. (Express density in g/L)

    asked by nona
  7. Geometry

    A rectangular quilt's length is twice the length of a rectangular picture, and the quilt's width is three times the width of the same picture. The area of the picture is 2 square feet. What is the area of the quilt, in square feet?

    asked by Liv
  8. math

    The function f(x) = cx/2x+3 satisfies f(f(x))=x for all real numbers x\= -3/2. Find c.

    asked by Will
  9. math

    There are 20 bikes in spinning class, the bikes are arranged 4 rows, with 5 bikes in each row. They hope to be in the same row, but cannot request specific bike. Determine the probability that all 5 friends will be in same row with Jeff and dariya at

    asked by sakura
  10. algebra

    if a quadratic equation with real coefficents has a discriminant of 10, then what type of roots does it have? A-2 real, rational roots B-2 real, irrational roots C-1 real, irrational roots D-2 imaginary roots

    asked by brroooee
  11. Astronomy

    Imagine that the asteroid A that has an escape velocity of 50m/s. If asteroid B has twice the mass and twice the radius it would have an escape velocity _______ the escape velocity of asteroid A

    asked by Ellie
  12. us history

    Which of these actions did President Lincoln take at the beginning of the Civil War? He declared martial law throughout the nation. He imprisoned congressional representatives from the South. He issued a declaration of war without the consent of Congress.

    asked by Oscar
  13. goverment

    Do you think that the compromise creating a two-house chamber to balance the needs of smaller and larger states was the best solution? Explain.

    asked by jimm
  14. us history

    John Brown, supported by abolitionists and Republicans, tried to start a slave revolt. Therefore be it resolved that the defense of slavery is a common cause to all Southern states. At the call of any Southern state, we are authorized to send troops and

    asked by Oscar
  15. us history

    How did the Union benefit from holding Maryland? Maryland had a well-trained militia and officers Maryland had more railroads than any other state at the time The Confederate capital was bordered by Union territory The Union capital was not surrounded by

    asked by Oscar
  16. Madison

    Elliot put 7 cups of tea into the pitcher shown. How many more cups of tea does he need to fill the pitcher? (1 quart = 4 cups)

    asked by lena
  17. math

    The area of a circle is given by the formula A = ðr2, where r is the radius. If increasing the radius of a circle by 1 inch gives the resulting circle an area of 100ð square inches, what is the radius of the original circle?

    asked by Anna
  18. physics

    You're in an airplane that flies horizontally with speed 830km/h (230m/s ) when an engine falls off. Neglecting air resistance, assume it takes 35s for the engine to hit the ground. Find the height of airplane. Find the horizontal distance that the

    asked by Maria
  19. math

    At a lumber company, shelves are sold in 3 types of wood, 2 different widths and 5 different lengths. How many different types of shelves could be ordered?

    asked by yancy
  20. geometry

    In quadrilateral QRTS, we have QR = 11, QS = 9, and ST=2. Sides line RQ and line ST are extended past Q and S, respectively, to meet at point P. If PS = 8 and PQ = 5, then what is RT?

    asked by Jill
  21. Algebra

    Solve the system by substitution. -5x + y = -3 3x - 8y = 24 I'm not sure which equation to choose as I begin to find the y value. Some assistance would be greatly appreciated! Thank you!

    asked by Kylie
  22. Math

    Shonetta Woods has a limited payment insurance policy with an annual premium of $1,125.00 until age 65. She pays the premium quarterly at an increased rate of 26.2 percent per quarter. How much money can Shonetta save in one year by paying the premium

    asked by Lynn.
  23. 7th grade math (probability)

    Can you check these, please? Ten cards numbered 1 through 10 are mixed together and then one card is drawn. Find the probability of each event. Write each answer as a fraction, percent, and decimal. 14. P(less than 5) = 4/10 = 2/5 Ans: 2/5, 40%, 0.4 15.

    asked by Alexis
  24. goverment

    Why did some people want representation to be based on population?

    asked by jimm
  25. algebra

    The product of two positive consecutive numbers is 42. What is the smaller number?

    asked by sadeek
  26. Algebra

    Some functions that aren't invertible can be made invertible by restricting their domains. For example, the function x^2 is invertible if we restrict x to the interval [0,inf), or to any subset of that interval. In that case, the inverse function is \sqrt

    asked by Mark
  27. Chemistry

    8. A chemist vaporized a liquid compound and determined its density. If the density of the vapor at 90 ºC and 753 mmHg is 1.585 g/L, what is the molecular weight of the compound?

    asked by nona
  28. us history

    How did the Compromise of 1877 affect the political participation of African Americans? Southern legislatures, which were given power in the compromise, failed to persecute the Ku Klux Klan. The Freedmen's Bureau, which encouraged civic programs for freed

    asked by Oscar
  29. MATH

    Sam invested part of his 36,000 bonus in a fund that paid an 8% profit and invested the rest in stock that suffered a 5% loss find the amount of each investment if his overall net profit was 2,750

    asked by MIKE
  30. Business

    19. The price for predictability is often A. long hours. B. long-term boredom. C. stress and insecurity. D. increased self-confidence. I think D or a

    asked by Jay
  31. Business

    14. When you first started your new business, you were so excited about the large volume of orders you had. One year later, you find that your orders are less than half of what they were in the beginning. What is the most probably cause of this decrease in

    asked by Jay
  32. Electric Heating Appliances and fans

    A fan equipped with a gearbox is capable of

    asked by Tony Lopez
  33. Physics

    You can run 8.8m/s,20% faster than your brother. How much head start should you give him in order to have a tie race over 110m?please help:(

    asked by Sarah
  34. Chemistry

    2zN reacts with O2 to produce 2ZnO, HOW MANY GRAMS OF ZINC OXIDE CAN BE PRODUCED FROM 2.75 G OF OXYGEN?

    asked by Ashten
  35. chemistry

    17. Calculate ƒ´H of strontium carbonate using Hess law Sr + C (graphite) + 3/2 O2 ¡÷ SrCO3 Experimental information SrO ¡÷ Sr + 1/2 O2 ƒ´H 592 kJ SrO + CO2 ¡÷ SrCO3 ƒ´H -234 kJ 2 C (graphite) + 2 O2 ¡÷ 2 CO2 ƒ´H -788 kJ .

    asked by nona
  36. Math

    Fidel Baez has a health insurance plan with a $150.00 deductible. The plan covers 80 percent of his hospital charges. Fidel's recent health care costs include $300.00 in co-payments and a hospital bill of $2,300.00. What amount did he pay? Is it $910.00?

    asked by Lynn.
  37. biology

    EVOLUTION (fill in the blanks) Natural selection is the BLANK for evolution As a result of natural selection, organisms with more BLANK traits are more likely to BLANK, BLANK, and BLANK on the favorable traits to their offspring. These traits are passed on

    asked by Lana
  38. us history

    How did Floridians vote during the presidential election of 1860? They voted for the pro-slavery Southern Democrat. They voted for the moderate Republican.. They were split between Republicans and Southern Democrats. Their votes went uncounted due to

    asked by Oscar
  39. History

    Which term is applied to a legislator who introduces a bill? president pro tempore sponsor of the bill < ? proponent of the bill director of the bill Who carries out the roles of chief diplomat, commander in chief, and chief executive in the United States?

    asked by Lia
  40. science

    If 23 g of ethanol (c2h5oh) is dissolved in 60 g of ethenoic acid (ch3cooh). Then find out the mole fraction of each component?

    asked by Ras
  41. math

    what is the volume of a cylinder with a radius of inches and a height of 6 inches ?

    asked by Brooke
  42. English

    Can someone give me some good character traits about Friar Lawrence from Romeo and Juliet? I know he was trustworthy and friendly/

    asked by Thi
  43. Math

    Which is the best buy? a $19.25 for 11 candy bars b $15.39 for 9 candy bars c $17.30 for 10 candy bars d $22.62 for 13 candy bars I chose b.

    asked by Earl
  44. math

    Don't laugh at me says Jamal is 5 feet tall. One sunny morning he notices that he casts a shadow that is 2 feet long. If the school building casts a shadow that is 7 feet long at the same time, what is the height of the building?

    asked by timothy
  45. chem

    When 0.5mol of a certain ionic substance is dissolved in 1.0kg of water, the freezing point of the resulting solution is -3.72 ∘ C .(Freezing point depression of water is -1.86 kgwater molsoluteparticles ). How many ions does the substance give when it

    asked by dakota
  46. Chemistry

    I need help with how to do this! -If a 7.0mL sample of vinegar was titrated to the stoichiometric equivalence point with 7.5mL of 1.5M NaOH, what is the mass percent of CH3COOH in the vinegar sample?

    asked by Debbie
  47. chemistry

    What is the theoretical yield of H[2]O (in grams) if 8.3 mol H[2]S were consumed in the above reaction? If 137.1g of water was actually collected after the reaction, what is the percent yield? I have no idea to do this problem. I am not good in math at all

    asked by Ty
  48. Science

    A basketball is dropped from a height of 2m and has a rebound of only 1.5m. what happened to that energy that was lost?

    asked by Bianca
  49. Math

    Ricky needs 3 1/4 cups of sugar to make candy. He already has 2 1/2 cups. How many more cups of sugar does he need? Do you add for this question or subtract? That's all that I need to know.

    asked by Zoe
  50. Math 115

    The revenue from selling q items is R(q)=475q−q2, and the total cost is C(q)=175+6q. Write a function that gives the total profit earned, and find the quantity which maximizes the profit.

    asked by Zack
  51. Math

    For what values of k does the line y= x + k pass through the circle defined by x^2 + y^2 = 25 at: 2 points? 1 point? 0 points? I found the discriminant: 100- 4k^2 but i don't know how to find for each of the points

    asked by Ruth
  52. Math 115

    A fence is to be built to enclose a rectangular area of 320 square feet. The fence along three sides is to be made of material that costs 6 dollars per foot, and the material for the fourth side costs 14 dollars per foot. Find the dimensions of the

    asked by Zack
  53. practical chemistry

    perform a qualitative analysis test on ZnSO4 showing ur observations and inference

    asked by augustine eze
  54. algebra

    if a quadratic equation with real coefficients has a discrimiant of 225, then what type of roots doe it have? imaginary, rational or irrational?

    asked by brroooee
  55. please help Chemistry

    Zn(OH)2 was saturated in a solution of sodium hydroxide. The following equilibra exist under these conditions Zn(OH)2 -> Zn2+ +2OH- Ksp Zn2+ +OH- -> Zn(OH)+ K1 Zn(OH)- + OH- -> Zn(OH)2 K2 Zn(OH)2 + OH- -> Zn(OH)3- K3 Zn(OH)3- +OH- -> Zn(OH)42- K4 a) Sum of

    asked by george
  56. Physics

    A 1500kg car is travelling around a large roundabout of radius 40m at a constant speed of 50kmh-1. Calculate the time it takes to go halfway aound the roundabout. Just wondering which equation I should use. Thanks

    asked by Mandy
  57. statistics

    a local content center reports that it has been experiencing a 15% rate of no shows on advanced reservations. Among 150 advanced reservations find the probability that there will be fewer than 20 no shows round the standard deviation to three decimal to

    asked by Anonymous
  58. art

    How does Roger Fenton use visual composition in "Valley of the Shadow of Death" to depict loss of war? A.Cannonballs in a barren landscape hint a powerful destruction B.Cannonballs are a reminder of a victorious battle C. Cannonballs in the barren

    asked by Brighton
  59. chemistry

    15. How much heat energy (in kJ) is evolved by a reaction in a bomb calorimeter in which the temperature of the bomb and water increased from 19.5 to 22.83 ºC? The bomb has a heat capacity of 650 J/C; the calorimeter contains 320 g of water.

    asked by nona
  60. Health P.2

    ________ has often been called "the great imitator" because so many of the signs and symptoms are indistinguishable from those of other diseases. A. Chlamydia B. Syphilis C. Herpes D. Gonorrhea I really don't know this one please help.

    asked by Dalton Please Help
  61. math

    You build an architectural model of a new office complex using a scale factor of 75. Suppose you wanted to fill both the scale model office complex and the actual office complex with marbles. How many times the number of marbles required for the model

    asked by yancy
  62. geometry

    A parallelogram with sides of length of 4.5 feet and 9 feet, and a distance between the 9-foot sides of 0.8 foot.

    asked by yancy
  63. Math

    Suppose you have a cache of radium, which has a half-life of approximately 1590 years. How long would you have to wait for 1/5 of it to disappear?

    asked by Will
  64. Math

    Sarah was trying to figure out her grades for her math course. She only knew the grade of 4 of the tests she had taken, however the class had taken 5 tests total. She scored a 94, 67, 83, and 93. If Sarah ended up with a grade of 90, what did she get on

    asked by Bella
  65. Math

    Hi! I need help with these two questions. Thanks! :) 1.) Can we multiply the Matrix A (which is 3 x 4 matrix) by the other matrix, Matrix B (which is 3 x 4 matrix)? True Or False? 2.) When we multiply the 6 x 3 matrix by the 3 x 1 matrix, the final matrix

    asked by Emily
  66. chemistry

    A mixture og gases has a total pressure off 28.3 atm, it is made of: 5.8 atm of hydrogen gas, 7.2 atm of nitrogen gas, 3.5 atm of oxygen gas and some amount of methane. What is the pressure of methane? what is the pressure of methane in kPa?

    asked by Anonymous

    What does headstrong mean as it is used in the following lines from Act IV, scene 2 of Romeo and Juliet [ Enter Juliet ] Capulet : How now , my headstrong! Where have you been gadding?” Juliet: Where I have learn’d me to repent the sin Of disobedient

    asked by HELLO WORLD<>!!!!!!!!!!!
  68. us history

    How did the presence of the border states illustrate a difference between the Union and Confederacy? The Confederacy had more internal political disagreements than the Union. The Confederacy had more states on its side than the Union. The Union's

    asked by Oscar
  69. Geometry

    The length of a rectangle is 3x+10 feet and its width is x+12 feet. If the perimeter of the rectangle is 76 feet, how many square feet are in the area of the rectangle?

    asked by Mark
  70. math

    A model rocket is shot straight up into the air. The table shows its height, h(t), at time t. Graph the table below and determine a function, in standard form, that estimates the height of the rocket at any given time. Time(s) Height (m) 0 0.0 1 25.1 2

    asked by Genny
  71. math

    A rectangle has an area of 400 cm^2. If the rectangle is a square, what is its perimeter?

    asked by Will
  72. calculus

    A particle moves on a line so that its position at time t seconds is p(t)=3t3 meters to the right of the origin. Find the time c in the interval (4,8) for which the velocity of the particle at time c is equal to the average velocity on the interval [4,8].

    asked by Ella
  73. 5th grade math

    Find the value of 'n' to make each statment true. 1.22 x n is between 80 and 85

    asked by mythreyee
  74. Math

    Manyatta Village is 74 km North West of Nyangata Village. Chamwe village is 42 km west of Nyangata. find the bearing of Chamwe from Manyatta

    asked by kudu
  75. math

    What is the missing exponent? (106) = 10 -18

    asked by billy bob
  76. math

    Is there some other way I can explain this to my 8th grader. Five editors finish a project in 3 1/2 weeks. How many editors are needed to complete the same project in 1 1/6 weeks

    asked by Maria
  77. math

    if a 3-foot -tall child casts a shadow that is 2 feet long, how tall is a telephone pole that casts a shadow that is 40 feet long?

    asked by Mattie
  78. Math

    A box of Cereal X contains 36 ounces and costs $ 4.99. A box of Cereal Z contains 30 ounces and costs $ 4.50. Which cereal is the better buy ?

    asked by Brooke
  79. 5th grade math

    Find the value of 'n' to make each statement true. 1. 22 times n is between 80 and 85

    asked by mythreyee
  80. goverment

    Why did some people want all states to have the same number of votes in the federal legislature? What did they fea

    asked by jimm
  81. math

    Why wasn't cross multiplication used. Five editors finish a project in 3 1/2 weeks. How many editors are needed to complete the same project in 1 1/6 weeks 5/3.5= x/1.16

    asked by Maria
  82. Math

    What ratio is equivalent to 3/20? a 5 to 100 b 100 to 5 c 140 to 21 d 21 to 140 I picked d is this correct?

    asked by Sam
  83. algebra

    true or false interest is an example of a linear equation

    asked by Meredith Grey
  84. Math

    The sum of any two consecutive integers is a composite number. A. 16 + 17 = 33 B. 10 + 11 = 21 C. 6 + 7 = 13 D. 7 + 8 = 15

    asked by britney
  85. Math

    A printing company makes plastic banners 15 feet long by 6 feet wide. An overseas customer wants to know about how many square meters the banner is. Use 1 foot = 0.305 meter. a 8.37 square meters b 27.5 square meter c 90.0 square meter d 900 square meter

    asked by Mia
  86. Math

    Choose all measurements that are equivalent to 45 meters. a 450 centimeters b 4500 centimeters c 0.045 kilometer d 0.45 kilometer e 4500 millimeters I pick b, d, e is this correct.

    asked by Sam
  87. Math

    Choose all statements that are true? a 15% of 15 is 1 b 5% of 50 is 10 c 10% of 100 is 10 d 2% of 100 is 5 e 3 % of 200 is 6 I picked a, c and e.

    asked by Jack
  88. Calc

    A model for the food-price index (the price of a representative "basket" of foods) between 1984 and 1994 is given by the function I(t)=0.00009045t5+0.001438t4−0.06561t3+0.4598t2−.6270t+99.33 Where t is measured in years since midyear 1984, so

    asked by Anonymous
  89. Business

    Several employees have been handing out union pamphlets in the parking lot of the hospital. Employees are talking about whether to join the union or not. Some of the managers have joined together and fired employees who were interested in the union to keep

    asked by studious
  90. Measurement&Formulas

    Maria works out for 150 minutes every Saturday.How many hours is this?

    asked by Kenneth
  91. 6 grade math

    Choose all statements that are not true. a 20% of 20 is 4 b 30% of 30 is 9 c 40% of 50 is 15 d 50% of 110 is 60 e 60% of 60 is 360 The answer I choose is all of them. Is this correct.

    asked by Jack
  92. journalism check answers

    A kicker is the last sentence in a news article that leaves an impression with your reader. true or false false _______________ refers to opinion, travel, style, reviews and sports stories that are less reliant on breaking news or factual information. Soft

    asked by jimm
  93. chemistry

    11. Calculate the total pressure of a mixture of 0.02 mol He and 0.01 mol H2 in a 5.0 L flask at 10 ºC.

    asked by nona
  94. Math

    Samantha has 2 meters of ribbon for wrapping packages She uses 15 centimeters of ribbon on first package how much ribbon is left

    asked by Anonymous
  95. Business

    12. You start a new business selling a product that's the best of its kind on the market. In addition to this product, what must you have to be successful? A. Good marketing B. Sales experience C. A large staff D. A franchise license I think b or a

    asked by Jay
  96. Math

    A set of trading cards sells for $12.00. After sales tax, it costs $12.60. what is the sales tax rate? Do I divide to get this answer? Please help.

    asked by Sharon
  97. Math

    Wong ran for 45 minutes in a marathon without stopping.How many seconds Wong run without stopping?

    asked by Kenneth
  98. calc

    Verify that the function satisfies the three hypotheses of Rolle's Theorem on the given interval. Then find all numbers c that satisfy the conclusion of Rolle's Theorem. (Enter your answers as a comma-separated list.) f(x) = x^3 − x^2 − 12x + 8, [0, 4]

    asked by sam
  99. astronomy

    The distance from Earth of the red supergiant Betelgeuse is approximately 643 light-years. If it were to explode as a supernova, it would be one of the brightest stars in the sky. Right now, the brightest star other than the Sun is Sirius, with a

    asked by Anonymous
  100. math

    What is the least common denominator for the fractions and ? A. 14 B. 18 C. 24 D. 48

    asked by Anonymous
  101. algebra

    how to factor the quadratic :12x^2+11x-12?

    asked by ho
  102. math

    A box contained some red, blue, and green markers. For every 5 red markers, there were 2 blue markers. For every 3 blue markers, there were 5 green markers. a. Find the ratio of red markers to blue markers to green markers. b. When 6 red markers were

    asked by austin
  103. algebra

    please factor this quadratic eaquation thanks

    asked by ho
  104. journalism check answers

    Pictures can be used to add aesthetics to news stories and....? show emotion illustrate action Both A and B C Videos are beneficial to news stories because they provide visuals and ________. sound (audio) action scenes anchors A All of the following would

    asked by jimm
  105. thermodynamics statistical machenics

    For copper, take N/V =8.5×10^28m^-3, h=6.62×10^-34Js, and me =9.1×10^-31kg to calculate Fermi energy.

    asked by gourav
  106. Math

    Convert 22 miles to yards. Use a proportion to solve. Show your work. Where do I start with this problem?

    asked by Steve
  107. AP Chemistry

    A buffered solution was created by mixing solutions of NH4Cl and NH3 at 25 C. Which species, NH4+ or NH3, has the highest concentration in this buffered solution?. Justify your answer.

    asked by Sara
  108. chem

    How many milliliters of 0.170M BaCl 2 are needed to react completely with 45.0mL of 0.260M Na 2 SO 4 ?

    asked by dakota
  109. chem

    How many grams of BaSO 4 will be formed?

    asked by dakota
  110. History

    what 3 or 4 political changes were the most important in the U.S., circa 1890s – 1910s? what were the 3 most important impacts of increased U.S. involvement in foreign countries, 1890s – 1910s? what were the 3 most important social changes in the

    asked by TayB
  111. chem

    How many milliliters of a 0.82M HCl solution do you need to obtain 0.0038mol of HCl ?

    asked by dakota
  112. chem

    What is the total anion concentration (in mEq/L ) of a solution that contains 4.0mEq/LNa + , 13.0mEq/LCa 2+ , and 3.0mEq/LLi + ?

    asked by dakota
  113. chem

    A solution is prepared by dissolving 0.87mol of MgCl 2 in 0.40kg of water. How many moles of ions are present in solution? What is the change in the boiling point of the aqueous solution?

    asked by dakota
  114. chem

    If concentration of Mg 2+ in blood plasma is 3mEq/L , calculate how many milligrams of Mg 2+ are in 220mL of blood.

    asked by dakota
  115. math

    [2/3 -1/3] times 5/8

    asked by kalyn
  116. algebra


    asked by timothy
  117. math

    Find the missing angle measurement

    asked by Zechariah barbour
  118. reading and literature

    which is hamlet by Shakespeare historical fiction, mystery, myth, science fiction, realistic fiction, allegory, parody, satire, or graphic thinking graphic novels

    asked by aiyanna
  119. algebra

    Suppose g(x)=4x^2+8x+13. Does g have an inverse? If so, find g^{-1}(25)

    asked by Jill
  120. CHE107

    It's a very simple questions but confusing. How many atoms in a mole of NaCl? Is it the avogardo's number *2 or is it 2 atoms....Please clarify answer. Thnx

    asked by azz
  121. Calculus 2 (Differential Equation)

    How would you solve the following problem explicitly? Sqrt(1-y^2) dx - sqrt(1-x^2) dy I separated the x and y terms and got: Integral of 1/sqrt(1-x^2) dx = Integral of 1/sqrt(1-y^2) dy I was wondering how would you take the anti-derivative of each

    asked by Rena
  122. chemestry

    the common isotopes of chlorine weigh 35&37 units A.How many different mass molecules are there for dichlormethane,ch2 cl2? B. Draw and label each molecule C. explain why the ram of chlorine is about 35.5& not a whole number. D. lighter molecules diffuse

    asked by nancy
  123. english

    what is the complements and is it predicate nominative or predicate adjective? 1.Does the lemonade taste too sour? 2.The window washers on the fifteenth floor appeared tiny. 3. Why does he always look so serious? 4. Our candidate for the city council was

    asked by Khoua Yang
  124. ^math^

    ^Pls help^ Question= Evaluate sqrt(19 - 4sqrt21) ...,where sqrt is square root.

    asked by Ekingdeft
  125. math

    Suppose h(x)=1/\sqrt x for x>0. Does h have an inverse? If so, find h^-1(4).

    asked by Jill
  126. thermodynamics and statistical machenics

    A certain mass of a gas at 273k temperature and one atmospheric pressure is expanded to 3 times its original volume under adiabatic conditions.Calculate the resulting temperature and pressure( take the value of (gamma)= 1.4).

    asked by gourav
  127. Physics

    If a ball is launched into the air vertically with a velocity of 20 m/sec, how fast will it be moving after two seconds? (The gravity's acceleration is rounded to 10 m/sec/sec.)

    asked by Tom
  128. math

    This year, Rosa harvested 60 cucumbers, 25 tomatoes, and 15 peppers from her garden. In a circle graph of this data, what angle measure (in degrees) should Rosa use for the peppers section?

    asked by Zarr
  129. goverment

    Which term is applied to a legislator who introduces a bill? president pro tempore sponsor of the bill proponent of the bill director of the bill B OR d

    asked by jimm
  130. English

    There's a volunteer worker who volunteers closely two diff organizations. If one organization receives donations and can't utilize them, he'll bring it over to the other organization that maybe can, and vice versa. Can it be said that he serves as a

    asked by Jen
  131. journalism check answers last ones

    Beat reporting is... Reporting about up and coming music When a reporter focuses on a designated content area The type of reporting done when a journalist is really tired and overworked B All of the following are story structures used in journalism except:

    asked by jimm
  132. delgado

    6. A 2.50 L flask was used to collect a 5.65 g sample of propane gas, C3H8. After the sample was collected, the gas pressure was found to be 956 mmHg. What was the temperature of the propane in the flask?

    asked by nona
  133. Medical billing and Coding

    What is defined as improper behavior or billing practices that result in financial gain? I have looked all through the text and cannot find the answer.

    asked by Paula
  134. math

    Im doing a crossword and it says flip figure (mirror image) what is this?

    asked by ashlynn
  135. chemistry

    Zn(OH)2 was saturated in a solution of sodium hydroxide. The following equilibra exist under these conditions Zn(OH)2 -> Zn2+ +2OH- Ksp Zn2+ +OH- -> Zn(OH)+ K1 Zn(OH)- + OH- -> Zn(OH)2 K2 Zn(OH)2 + OH- -> Zn(OH)3- K3 Zn(OH)3- +OH- -> Zn(OH)42- K4 a) Sum of

    asked by george
  136. government

    what is the connection with mcculloch v maryland and proper clause

    asked by anonymous
  137. math

    What is it callec when you use a compass to find the midpoint of a line segment?

    asked by ashlynn
  138. math

    Complete the standard form of the equation –3y = 8 – 4x

    asked by brodi
  139. social studies

    In a famous speech, William Jennings Bryan A. declared his staunch support of the gold standard. B. refused his nomination as the presidential candidate of the Populist Party. C. refused to be allied with the so-called "silverists." D. declared that

    asked by Sarah
  140. Physics

    An 78.9 kg person carries a 23 N package up a flight of stairs. The vertical height of the stairs is 23.8 m. How much work is done?

    asked by Anonymous
  141. grammar

    if there is a split quotation what do i do if the first part is a question but the other half is not do I put a question mark?

    asked by ?
  142. Math 115

    The manager of a large apartment complex knows from experience that 90 units will be occupied if the rent is 444 dollars per month. A market survey suggests that, on the average, one additional unit will remain vacant for each 6 dollar increase in rent.

    asked by Zack
  143. probability

    The PDF of exp(X) Let X be a random variable with PDF f_X. Find the PDF of the random variable Y=e^X for each of the following cases: For general f_X, when y>0, f_Y(y)= f_X(ln y) --------- y When f_X(x) = {1/3,0,if −2

    asked by RVE
  144. Math

    Suppose she cut the cake into 8 equal size pieces and 6 people ate all the pieces. Explain how they could have divided the pieces so that everyone ate the same amount of cake. Show work in a drawing

    asked by Kaylee
  145. Math 115

    A manufacture has been selling 1400 television sets a week at $480 each. A market survey indicates that for each $24 rebate offered to a buyer, the number of sets sold will increase by 240 per week. a) Find the price p(x) of each television as a function

    asked by Zack
  146. math

    A swimming pool is 50 meters long. Jamie swam 60 lengths of the pool in one week. How many kilometers did she swim?I'm not sure how to do this. 50 x 60 = 3,000

    asked by Whitt
  147. goverment

    "Many forms of government have been tried, and will be tried in this world of sin and woe. No one pretends that democracy is perfect or all-wise. Indeed, it has been said that democracy is the worst form of government except all those other forms that have

    asked by jimm
  148. Math

    How do you figure out the dimensions of a flower pot that has 300 cubic inches of soil?

    asked by Alina
  149. chemistry

    value and formula Ksp Of : -PbI2 -CdS -Ca(OH)2 -Ag2CrO4 -Cu2S

    asked by ahmad
  150. Chemistry

    How many kg of Glaubers salt (Na2SO4. 10 H2O) will be obtained from 250 kg of Na2SO4

    asked by Man Singh Chouhan
  151. Science

    A Portland cement sample contained 20% SiO2 by weight derived from two silicate compounds. SiO2.2 CaO and SiO2. 3CaO that are present in the cement in the mole ratio 3:4. Determine the percent by weight of each silicate compound in the cement.

    asked by Man Singh Chouhan
  152. Physics

    You drop a rock from a 300-meter cliff. How long will it take to reach the ground? Assume it has no significant air resistance

    asked by Matt
  153. Science

    1 kg of Nitrogen is mixed with 3.5 m3 of hydrogen at 300 K and 101.3 kPa and sent to ammonia converter. The product leaving the converted analyzed 13.7% ammonia, 70.32% hydrogen and 15.98% nitrogen. (a) Identify the limiting reactant? (b) What is the

    asked by Man Singh Chouhan
  154. Science

    The pressure guage on the steam condenser for a turbine indicates 26.2 in. Hg of vacuum. The barometer reading is 30.4 in. What the absolute pressure in the condenser in psia?

    asked by Man Singh Chouhan
  155. Math Check

    1.) Find 1/2([5 -2 4 0]+[14 6 -18 9]) A. [19/2 2 -7 9/2] B. [-9/2 -4 -11 9/2] C. [ 19/2 2 -7 9] D. [19 4 -14 9] My answer: C. 2.) Is it possible to find AB when you are give A= [3 2 1] and B= [2 3 0]? (this 2, 3, 0 is suppose to line up like up and down.)

    asked by Giselle
  156. Science

    Find the density and specific gravity of the following (a) SO2 at 700F and 1 atm (b) Mixture of 10 mole% CH4 and 90 mole% argon at 5400C and 28.9 inch Hg (c) Air containing 0.045 lbm H2O per pound mass of dry air at 2000F and 29.7 in Hg absolute pressure

    asked by Man Singh Chouhan
  157. Physics

    It took a force of 262. N to pull a crate weighing 765 N across the floor. The work done was 3500. J. How far was the crate moved?

    asked by Anonymous
  158. Science

    A cellulose solution contains 5% cellulose by weight in water. It is to be diluted to 4.0 % using a 1% solution of cellulose in water. Determine the kilograms of 1% solution required to dilute 100 kg of the 5% solution.

    asked by Man Singh Chouhan
  159. math

    Terry, Corey, and Chris together made 20 baskets in a basketball game. Terry made 5 more than Corey. Chris made 3 times as many as Corey. How many baskets did they all have?

    asked by susan
  160. Science

    10. You analyze the gas in 100 kg of gas in a tank at atmospheric pressure, and find the Following : CO2;19.3%, N2;72.1%, O2;6.5%, H2O;2.1% What is the average molecular weight of the gas?

    asked by Man Singh Chouhan
  161. Science

    When the energy of a sound wave is transferred to a particle of a medium and causes it to vibrate and generate heat, the sound wave is......

    asked by Mark Ronson
  162. Math

    Find the co-ordinates where f(x)intersects f'(x). f(x)= ln(x+3) f'(x)= -3+e^x I rewrote f(x) so that it looks like: e^y=x+3 then I inserted f'(x): y=-3+e^x into f(x) and after a bit of working I got x=-10.6 which is not possible because ln of something

    asked by Tibor
  163. Physics

    Cart A has a mass of 10kg and is moving towards cart B at a speed of 15 m/s. If cart B is moving towards cart A with a speed of 5 m/s, what mass must Cart B have to stop both carts upon collision?

    asked by Danielle
  164. law

    How does the law in Malaysia treat illegitimate children in the context of their status, maintenance, custody and succession?

    asked by jika
  165. Math

    Kelly has 40 hours of work to do on her fair project . she has 5 weeks to complete it on time?

    asked by Jyron
  166. algebra II


    asked by Andrew
  167. books

    I need help with this question, I have to write a paragraph to support an opinion and I don't understand this question. When Scrooge tells Marley that Marley was always a good man of business. In Act 1 scene 3 of a Christmas Carol Scrooge and Marley,

    asked by caleb
  168. chemistry

    14. Calculate the amount of heat liberated (in kJ) from 350 g mercury when it cools from 77.0 oC to 12oC. (The specific heat of mercury is 0.139 J/g oC)

    asked by nona
  169. math

    At a local high school,560 out of 1060 students voted to support a community fund drive. What percent of the students did not support the fund drive?

    asked by paulette
  170. Pre-Calculus

    Solve 0 = 3x^2 + 5x -1 by completing the square. Express your answer as exact roots. 3(x^2 + 5/3 + 25/36) = -1 (x+ 5/6)^2 = 37/36 sq root( x + 5/6)^2 = sq root (37/36) x + 5/6 = +- sq root 37/6 x = -5/6 +- square root 37 /6

    asked by Lucina
  171. physics

    a force of 150N does 3.40kj of work over a displacement of 25.0m. what is the angle between the force vector and the displacement vector?

    asked by ben
  172. chemistry

    16. From the standard enthalpies of formation, calculate the ƒ´Horxn for the reaction: (ƒ´Hof = -151.9 kJ/mol for C6H12.) C6H12(l) + 9 O2(g) „³ 6 CO2 (g) + 6 H2O(l)

    asked by nona
  173. us history

    Which statement best explains how Ralph Waldo Emerson, Harriet Beecher Stowe, and Ned Buntline were similar? They all attempted to revive traditional religious values. They were all founders of influential social-reform movements. They all shaped the

    asked by Oscar
  174. History

    I Need help with this social studies! 1. when the roman government began to persecute christens under Nero, A.Christianity almost disappeared. B. Christians had to cremate their dead.***** C. Jews hid Christianity was outlawed 2. which roman emperor ended

    asked by Megan Trainor
  175. chemistry

    18. Calculate ƒ´H for the following reaction using Hess law H2 (g) + Br2 (g) ¡÷ 2 HBr (g) Experimental information 2 H+ ¡÷ H2 ƒ´H -436.4 kJ 2 Br- ¡÷ Br2 ƒ´H -192.5 kJ 2 H+ + 2 Br- ¡÷2 HBr ƒ´H -144.8 kJ

    asked by nona
  176. phy

    Tin melts at 232 under standard atmospheric pressure. Express this temperature in kelvin

    asked by Anonymous
  177. pre algebra

    Mike placed $750 in a CD of deposit with an annual interest Raye of 3.5%.How much money will there be after 5 interest payments?

    asked by Domenica
  178. math

    For what values of k does the line y= x + k pass through the circle defined by x^2 + y^2 = 25 at: 2 points? 1 point? 0 points? I found the discriminant: 100- 4k^2 but i don't know how to find for each of the points

    asked by Fred
  179. Algebra 1

    Okay so I have 2 problems that i cannot figure out. I have called several people to help but they cant figure it out. Here are the problems. By using only four 6's make an equation that equals 10. Using only four 7's make an equation that equals 10.

    asked by Lawyer
  180. chemistry

    Calculate the pH at the stoichiometric point of a titration of 25.0 mL of 0.120 M benzoic acid with 0.0230 M NaOH

    asked by lawerence

    What weight of O is produced when 3.00 g of KClO3 (s) is decomposed according to the reaction 2KClO3(s) 2KCl(s)+ 3O2(g)? A. 0.392g B. 0.587g C. 0.783g D. 1.17g add a quick explanation, thnx

    asked by azz
  182. Health P.2

    People living with HIV can have a longer and healthier life by ________. A. Joining a support group B. Taking their medicines C. Learning as much as possible about HIV and available treatments D. All of the above I'm guessing D?

    asked by Dalton Please Help

    Suppose the aliens watching the show are on the surface of Mars. Mass of Mars: 6.42 x 10^23 kg Radius of Mars: 3.394 x 10^6 m Calculate; A) the weight of a 40.0 kg alien on Mars B) the weight of 40.0kg alien on earh Earth-sun distance:1.50x10^11m Mars-sun

    asked by Maddie
  184. Math

    If a wheel turns 9 revolutions per minute and its circumference is 3.77 what speed must a mouse run to stay on top

    asked by Anonymous
  185. us history

    Which set of issues led to the Civil War? Economics, religion, boundaries Politics, education, voting rights Slavery, politics, economics Voting rights, slavery, politics is it c pls help me

    asked by Oscar
  186. HealthP.2

    ________ is a medicine used to fight HIV infection. A. Protease Inhibitors B. Fusion Inhibitors C. Reverse Transcriptase Inhibitors D. All of the above I truly don't know this. Please help!!!!!!

    asked by Dalton Please Help
  187. Math question

    Of 100 students surveyed, 33 like orange soda, 55 like cola, and 14 like both. How many students do NOT like orange soda? My answer=67. Am I correct?

    asked by Lynn.
  188. Math

    Jane will receive 18% less of her regular pay when she retires. Her regular pay is $500 per week. a How much would she receive per week if she retires today? answer: 500/18% = 90 500-90= $410 b. Explain how you can make this same calculation using

    asked by John
  189. ELA

    "I THINK I CORRECT ANSWER IS D " can someone please check ......... Which of the following quotes spoken by Romeo shows the strongest example of how he changes over the course of Romeo and Juliet? A . “Sleep dwell upon thine eyes , peace in thy breast! /

    asked by HELLO WORLD<>!!!!!!!!!!!
  190. French help (:

    Which is the correct form of the adjective? les grandes arbres < ? les grands arbres les grand arbres Which is the correct form of the adjective? les nouvelles classes les nouvel classes les nouvelle classes < Which shows the correct form of the adjective?

    asked by Lia
  191. math


    asked by jason
  192. chemistry

    If you used different branded of tea beg what is the expected % of coffeine you will isolated. Why?

    asked by mino
  193. College Algebra

    A rectangular garden next to a building is to be fenced on three sides. Fencing for the side parallel to the building costs $60 per foot, and material for the other two sides costs $20 per foot. If $1,500 is to be spent on fencing, what are the dimensions

    asked by Zach
  194. Chemistry

    A 101 mL flask contains argon at 1.4 atm and 85◦C. What amount of Ar is present? Answer in units of mol.

    asked by Taylor Hall
  195. Life oriantation

    To what extent can intrapersonal conflict affect choice of a career

    asked by Collate
  196. Math

    a cylinder with base area 24π cm2 and height 16 cm

    asked by Angie Delgado
  197. Math

    amy said there are three cubic feet in a cubic yard explain why amy is incorrect

    asked by Cindy
  198. History

    1. Equality of sexes ; 7 letters 2. To bring slavery into politics 12 letters 3. Unionism with politics; 16 letters 4.Put in here if you could not pay your debts ; 11 letters 5. Considered all men to be married to all women; 6 letters

    asked by Jamie
  199. math

    A brick making company manufactures bricks with the same height and width. the volume of each brick is 108 cubic inches and the base area of each brick is 36 square inches. If the length of a brick is denoted as x and the height and width of the brick is

    asked by Nat
  200. Math

    how do i solve: 200 = 1.862t^2 - 50t - 2

    asked by Jackie
  201. Math

    A wheel turns 9times per minute its diameter is1.2 at what speed must I run to stay on top

    asked by Anonymous
  202. Math

    A building has 2 floors. Each floor has 4 rooms. Each room has 6 tables. Each table has 5 typewriters. How many typewriters would have to be taken off each table so that the number of typewriters on the tables on one floor would be the same as the number

    asked by Roopa
  203. biology (fill in the blanks)

    Big picture of natural selection/ keep in mind… Natural selection doesn’t move in a BLANK BLANK Natural selection is not a BLANK process Natural selection isn't BLANK; Its all relative to the BLANK. Its from a study form. These are the ones I don't

    asked by Lana

    What weight of NH4Cl(s) is produced by the reaction of 17.0 g of NH3(g)with 60.0 g of HCl(g). A.34.0g B53.5g, C60.0g, D94.0g add explanation thanks!

    asked by azz
  205. math

    1 3 − x 4 = 7 12 find x

    asked by Timothy B 12
  206. Math-Lit 143

    Suppose you buy a two-year CD for $50,000 from First Command Bank. Use the APY from the First Command Bank table to determine how much interest it earns for you at maturity.

    asked by Jade
  207. Math Venn Diagram

    I need help with these questions: A survey of 115 children found that 39 liked The Little Mermaid 43 liked 101 Dalmatians 56 liked Mickey Mouse 7 liked The Little Mermaid and 101 Dalmatians 10 liked The Little Mermaid and Mickey Mouse 16 liked 101

    asked by Nadia
  208. math

    An equilateral triangle and a square both have perimeters of 48 inches. What is the ratio of the length of the side of the triangle to the length of the side of the square? Express your answer as a common fraction.

    asked by G
  209. Math

    a cylinder with base area 24π cm2 and height 16 cm

    asked by Angie Delgado
  210. algebra

    Show how you would solve by Substitution: 2x + y = 0 x – 3y = -7 Show how you would solve by Elimination: 3x + 4y = 1 5x – 3y = 21

    asked by jay
  211. math

    The area of a triangle is 600 square feet. Find the altitude, in feet, of the triangle if the length of the corresponding base is 30 feet.

    asked by Sean
  212. geo

    A square has an area of 25. A rectangle has the same width as the square. The length of the rectangle is double its width. What is the area of the rectangle?

    asked by Sarah
  213. computer programming

    a car rental company uses the following table to help compute rental fees . Chevrolet $50.00 , corvette 85.00 , Pontiac 53.00 , Buick 60.00 , Oldsmobile 60.00 , Cadillac 70.00 (Rate per Day) . Rate per Mile .27 , .45 , .32 , .32 , .35 , .40 . It have to be

    asked by Marsha
  214. Science

    I need to write 10 sentences to this question: what do u think caused the little puddle of water to appear under the syringe! Please help to find 10 sentences on what caused the puddle

    asked by Dray