1. Algebra 2

    1.What is the vertex from the equation? Y=x^2+12x=4 (Please show your work to show me the steps to get to the right answer.) 2. Use the quadratic formula to solve the equation. x^2-7x-6=0 (Please show your work to show me the steps to get to the right

    asked by Sam on November 27, 2018
  2. Math - algebraish

    hey how do we convert y=mx+b to standard form? the standard form of the equation of a straight line is usually considered to take this form Ax + By = C, where A,B, and C are integers and A is positive. So if your equation is in the slope-yintercept form

    asked by gorden on April 9, 2007
  3. URGENT ALGEBRA 2

    identify the vertex and the axis of symmetry of the graph for the function y=3(x+2)^2 a.vertex(2,-3 axis of symmetry x=2 b.vertex(-2,-3) axis of symmetry x=-2 c.vertex(2,3) axis of symmetry x=2 d.vertex(-2,3) axis of symmetry x=-2 identify the maximum or

    asked by ray on October 4, 2013
  4. Algebra 1

    Two students are absent. This is 1/8 of the entire class. How many students are in the entire class? Write the equation: How would you write an equation?

    asked by Bob on January 22, 2014
  5. algebra

    4)Write the equation x^2-2x+y^2+4y=11 in standard form. answer= (x-1)^2+(y+2)^2=16 5)Write the equation 4x^2+24x-y+34=0 in standard form answer= y= 4(x-3)^2+2

    asked by Marissa on August 21, 2007
  6. Math

    These are two equations: 1)y=|x|-3 2)y=|x|+3 a. Which equation translates the parent graph _ units up? b. Which equation translates the parent graph _ units down?

    asked by Angie on March 26, 2009
  7. Algebra 1

    Two students are absent. This is 1/8 of the entire class. How many students are in the entire class? Write the equation: How would you write an equation?

    asked by Bob on January 22, 2014
  8. Algebra

    I have a few questions I need help with. They are to help review for our exam. 4) Without graphing, is each system independent, dependent, or inconsistent? -x-3y=0 x-y=4 (i believe dependent) dependent independent inconsistent 6) Which matrix represents

    asked by lila on January 2, 2013
  9. calculus

    Consider line segments which are tangent to a point on the right half (x>0) of the curve y = x^2 + 1 and connect the tangent point to the x-axis. If the tangent point is close to the y-axis, the line segment is long. If the tangent point is far from the

    asked by Hal on November 14, 2009
  10. Math calculus 2

    A propane tank is in the shape generated by revolving the region enclosed by the right half of the graph of (4*x^2)+(64*y^2)=144 and the y-axis about the y-axis. If x and y are measured in meters find the depth of the propane in the tank when it is filled

    asked by Anonymous on February 15, 2018
  11. Chemistry

    'A solution is prepared by titrating a 100.0 mL sample of 0.10 M HF (Ka = 7.2 x 10^-4) with 0.1 M NaOH. What is the pH after 20.0 mL of the 0.10 M NaOH is added?' I'm a little bit confused but here's my ICE chart (in moles): HF________OH-_____F-

    asked by SarahF275 on February 21, 2018
  12. Math - Algebra 2

    In a certain math class, each student has a text book, every 2 students share a book of tables, every 3 students share a problem book, and every 4 students share a mathematics dictionary. If the total number of books is 75.. how many students are in a

    asked by AS on December 2, 2006
  13. Math

    Dominic earns $18 an hour plus $25 an hour for every hour of overtime. Overtime hours are any hours more than 35 hours for the week. Part A: Create an equation that shows the amount of money earned, E, for working x hours in a week when there is no

    asked by B&PT on May 16, 2017
  14. Chemistry

    Good morning. I need help solving 2 problems for chemistry. For #1 I need someone to check my work and tell me if I did it wrong and show me how and where I went wrong. And for #2 I need someone to help me figure out how to solve it and explain. 1. With

    asked by Samantha on November 26, 2017
  15. trig

    2. Determine the amplitude of: y= cos x 3. Determine the domain of: y= 4 sin x 4. Determine the range of: y= - sin x 5. Determine the period of: y= 3 sin ðx 6. Determine the phase shift of: y= 3 cos (2x -1) 7. Solve the following equation for indicated

    asked by Bernice on December 17, 2009
  16. Math

    Assume that f is a continuous function from the real numbers to the real numbers such that for all numbers x,y, and a it is true that f(x+y)=f(x) + f(y) and that f(ax)=af(x). Further assume that f(1) = pi. Find f'(-1). Please explain your reasoning. I am

    asked by Leah on October 6, 2014
  17. math

    Write an equation relating the number of questions I get right on a test to the total score I will get if the test has 20 questions each with the same point value and the test is worth 100 points total. I know each question is worth 5 points so I would

    asked by Ashley on September 17, 2014
  18. physics

    "A 3.5 kg monket is suspended motionless 35 meter above the ground by holding two vines (a vertical vine and a diagonal vine)" We need to find the tension force in the diagonal vine as well as the angle of the diagonal vine with respect to the y axis. I'm

    asked by ana on October 11, 2015
  19. Chemistry

    What volume of O2 is required to react with excess CS2 to produce 4.0L of CO2 Assume all gases at STP. Not sure what I am doing wrong, but the answer I am getting is not one of the answers. 4L/X mole=22.4 L/1 mole ===>.1786 mols Balanced equation: O2 + CS2

    asked by T on December 13, 2007
  20. Math

    Which equation represents the solution to the following? I have some lemons. Jill has two more limes than five times the number of lemons that I have. Emma has one-third as many limes as Jill. Emma has 4 limes. How many lemons do I have?

    asked by Anonymous on June 26, 2015
  21. Math Modeling

    How is the number of cars and other vehicles changing over time? You may need to model these using different types of vehicles. i'm suppose to develop an equation for the number of cars being produced over time. i found out the number of cars that was

    asked by Anonymous on April 3, 2010
  22. Physics

    A)What is the equation for equivalent resistance for resistors wired in series? What about series wiring makes resistors in series add the way they do? B)What is the equation for capacitors wired in parallel? What about parallel wiring makes capacitors add

    asked by Luke on July 27, 2012
  23. Algebra

    Consider the line =y+76x2 . Find the equation of the line that is parallel to this line and passes through the point , −7 4 . Find the equation of the line that is perpendicular to this line and passes through the point , −7 4 .

    asked by Krista on April 10, 2017
  24. Instantaneous rate of change

    Please help.. Joe is investigating the rate of change of the function y=cos x on the interval xE[0,2π]. He notices that the graph of y=cos x passes through the x-axis at 45°. He also determines the instantaneous rate of change at x = 0, π, and 2π by

    asked by Kjd on May 23, 2012
  25. Chemistry

    in an experiment, ammonia gas, NH3(g) was bubbled through distilled water. Some of the dissolved ammonia gas, NH3, reacted with the water to form the aqueous ammonia ions, NH4. When red litmus paper was placed in contact with the aqueous solution, the

    asked by Joe on March 4, 2013
  26. Algebra

    f) Suppose you started with 100 bacteria, but they still grew by the same growth factor. Explain how your exponential equation in (b) would change. y=1*3x**** b) is Bacteria name: Staphylococcus aureus Generation Time: 30 minutes *Note: The generation time

    asked by BUBBLES on May 20, 2016
  27. science

    The acceleration due to gravity calculated this way works well for objects near the Earth’s surface. How would you have to change the above equation if the object was 100,000 meters above the ground? (Note: this question refers to Newton’s equation for

    asked by ThuyD on January 22, 2012
  28. Chemistry------DrBobb..

    Lead metal is added to 0.140 Cr^3+(aq). Pb(s)+ 2Cr^3(aq) Pb^2+(aq)+2Cr^2+(aq) KC=3.2*10^{-10} A. What is Pb^2+ when equilibrium is established in the reaction? B. What is Cr^2+ when equilibrium is established in the reaction? C. What is Cr^3+ when

    asked by Saira on February 7, 2009
  29. Equation of Time

    Found a site containing a graph of the equation of time. If the graph was from yr 1998 will it still be OK to use today. Does the equation of time vary much from year to year? Thank you Mike I'm not quite sure about what you are asking. Since this is not

    asked by MIKE on October 19, 2006
  30. Algebra

    I don't even know where to start, teacher gave us this with no direction. Suppose the polynomial R(x)=a9x^9+a8x^8+...+a,x+a0 has real coefficients with a9 cannot equal 0. Suppose also that R(x)has the following zeros: 5, 6, 5+5i. Using this information,

    asked by Rachal on February 4, 2011
  31. Math Help!!!

    1. Which of these numbers can be classified as both real and rational? ½ -1.016879413894 Square root of 5 0.89089908999 2. Which is both a real number and an integer? Square root of 7 0.15 -15 1/3 3. Which is an example of an irrational number? Square

    asked by math help asap on November 12, 2014
  32. physics

    A bead on a fixed ring and a spring A ring fixed to a support at the top is hanging vertically. A bead of mass m slides through the ring and is connected to the support through a spring of stiffness k as shown in the figure-1. The length of the unstretched

    asked by arslan on December 29, 2011
  33. math

    1. Samuel is 2/3 as old as his brother. In five years, he will be 3/4 as old as his brother will be. Find their present ages. a. If x = the brother’s age now, write an expression for Samuel’s present age in terms of x. b. Write an expression for the

    asked by Morgan S on December 19, 2012
  34. Plant Physiology

    Hey i have a mid term today at 3 , and this one sample question my prof posted online. If someone can please show me how to get the answers i would really appreciate it: A plant cell is found to have a Ψs = - 0.7 MPa and a Ψp = 0.5 MPa. Is this cell

    asked by Saira on February 13, 2009
  35. algebra

    1. - 5(2x+2)is greater than or equal to -10x - 17 (1 point) a)x is greater than or equal to 7 b)x is less than or equal to 19 c)all real numbers d)no solution

    asked by Emily on October 27, 2011
  36. Chemistry

    If you can show me an example of one problem, I have no idea how to approach this. Calculate where the number 40.67 came from. Use the Clapeyron-Clausisus equation. Assuming that delta H vap does not change with temperature, this equation relates the

    asked by Angel on February 26, 2012
  37. macroeconomics

    should we care more about nominal GDP or real GDP?? Thank you for using the Jiskha Homework Help Forum. Here is a link that discusses that very question: http://economics.about.com/cs/macrohelp/a/nominal_vs_real.htm A GDP based on the prices that prevailed

    asked by jenna on March 13, 2007
  38. The Nature of Chemical Reactions

    1. Molarity is to moles of solute over liters of solution as molality is to A. molar concentration over molal concentration. B. moles of solute over kilograms of solvent. C. molal concentration over molar concentration. D. moles of solute over moles of

    asked by Anonymous on October 23, 2011
  39. Algebra

    A zero of a polynomial is: A. A real number that makes f(x) = 0 B. A real number that makes x = 0 C.A real or complex number that makes f(x) = 0 D. A real or complex number that makes x = 0 Is the answer A?

    asked by Jason on February 18, 2015
  40. math check my answer ?

    What is the range of f(x)=−3x−1? the set of real numbers less than 0 the set of real numbers greater than 0 the set of real numbers greater than −1 the set of real numbers less than −1

    asked by Vicky on January 5, 2017
  41. Math

    find f(-3) for f(x)= 3x-x^2 f(-3)=0 f(-3)=18 f(-3)=-18

    asked by Dee on November 7, 2016
  42. Algebra 2

    1)Write an equation for the parabola with focus (4,0) and directrix y=2 4c(y - k) = (x - h)^2 4(-1)(y - 1) = (x - 4)^2 -4y + 4 = (x - 4)^2 -4y = (x - 4)^2 - 4 y = (-1/4)(x - 4)^2 + 1 2)Write an equation for the ellipse with end points of the major axis at

    asked by Jon on May 20, 2008
  43. Math

    1. What is the equation in standard form of a perpendicular line that passes through (5,1)? 2. What is the x-intercept of the perpendicular line? 3. What is the equation in standard form of a parallel line that passes through (0,-2)? 4. On the parallel

    asked by Elizabeth on January 23, 2014
  44. AP CHEM

    It was found that 39.9 mL of this diluted solution solution was needed to reach the stoichiometric point in a titration of 7 mL of a phosphoric acid solution according to the reaction 3KOH(aq) + H3PO4(aq) ! K3PO4(aq) + 3H2O(L) Calculate the molarity of the

    asked by Ankit on September 26, 2013
  45. Algebra

    A total of $7000 is invested in three accounts. Some was invested at 6%, some at 8%, and the rest at 9%. find the amount invested at each rate if the total interest for one year was $555 and the amount invested at 8% was three times the amount invested at

    asked by Diego on December 4, 2014
  46. Physics

    A solenoid with 200 turns and a cross sectional area of 60 cm^2 has a magnetic field of .60 T along its axis. If the field is confined within the solenoid and changes at a rate of .20 T/s, the magnitude of the induced potential difference in the solenoid

    asked by Jasmine on November 13, 2011
  47. college algebra

    use the rational zeros theorem to find all the real zeros of the polynomial function,. use the zeros to factor f over the real numbers. f(x)=11x^3-x^2+11x-1 please show all work

    asked by ladybug on November 19, 2012
  48. fractions

    If a scaled building is 672ft in real life, and you need to scale it to 1/320th size, how tall would it be if 1ft real size = 1inch scaled size? Please show how this done

    asked by Anonymous on June 1, 2012
  49. geology / science

    the age of granite can be determind using radiometric dating, explain the basis for the determination of a 238 U- Pb radiometric date of 1120 Ma for a granite. I have as the answer 238 U decays to Pb with an experimental law, that is the amount of U and Pb

    asked by bex on April 18, 2007
  50. Physics

    A 5.00-kg box is suspended from the ceiling by a cord that is 50.0 cm long. A 10.0-g bullet was fired horizontally with speed at 350 m/s into the box. By how much will the vertical height of the pendulum change? Clue: To get the speed of bullet and box

    asked by Candu on October 5, 2017
  51. Mathematics

    A space camera circles the Earth at a height of h miles above the surface. Suppose that d distance, IN MILES, on the surface of the Earth can be seen from the camera. (a) Find an equation that relates the central angle theta to the height h. (b) Find an

    asked by Javier on February 22, 2008
  52. Calculus

    Could someone help me setup an equation for this equation? --------------------------------- A city bus system carries 4000 passengers a day throughout a large city. The cost to ride the bus is $1.50/person. The owner realizes that 100 fewer people would

    asked by Jake on March 7, 2012
  53. statistics

    One method for estimating the availability of office space in large cities is to conduct a random sample of offices, and calculate the proportion of offices currently being used. Suppose that real estate agents believe that of all offices are currently

    asked by tea on March 26, 2012
  54. math

    Please check answers 1. Maria has a 25-page manuscript. The equation below shows the relationship between the total cost of editing 25 pages, T, and the cost per page, c, if she gets the 5% discount. 25c - 0.05(25c) = T Using the equation, what is the best

    asked by Please Need Help Quickly on October 13, 2015
  55. Algebra

    Greta invests $10,000 in an investment that pays 3% interest, compounded annually, for the first three years, then 9% interest, compounded annually, for the last three years. Rui invests $10,000 in an investment that pays r% for all six years. The two

    asked by Cassie on April 2, 2009
  56. math

    Please explain in detail how to solve each question: At a certain high school, 350 students are taking an algebra course. The ratio of boys to girls taking algebra is 33:37. How many more girls are taking algebra than boys? How can you write a system of

    asked by Jane on January 4, 2012
  57. math

    1)The area A of a triangle varies jointly as the lengths of its base b and height h. If A is 75 when b=15 and h=10,find A when b=8 and h=6 2)Determine the equation of any vertical asymtotes of the graph of f(x)=2x+3/x^2+2x-3 1) Area of a triangle is 1/2

    asked by Marissa on August 21, 2007
  58. CALCULUS

    Using separation of variables technique, solve the following differential equation with initial condition dy/dx = (yx + 5x) / (x^2 + 1) and y(3) = 5. The solution is: a.) y^2 = ln(x^2 + 1) + 25 - ln10 b.) ln(abs(y+5)) = ln(x^2 + 1) c.) ln(abs(y+5)) =

    asked by Anonymous on May 26, 2012
  59. Chemistry URGENT

    Could someone let me know if I have balanced these equations correctly. balanced equation of the reaction of iron and oxygen to produce iron(ii)oxide. 2Fe + O2 = 2FeO Also if the balanced equation of the reaction of iron and oxygen to produce

    asked by linda on March 27, 2014
  60. another A.P Chemistry Question

    A different rigid 5.00L cylinder contains 0.176mol of NO(g) at 298 k. A 0.176mol sample of 02(g) is added to the cylinder, where a reaction occurs to produce NO2(g) (d) write the balanced equation for the reaction. (e) calculate the total pressure, in atm,

    asked by T-Baby on October 23, 2006
  61. Algebra

    Prada Sport 02LS Gloss Black 02LS 1AB1A1 £132.30 My equation is as follow: S=C(1+r/100)^5. This is to determine the inflated cost S, in five years, of an item, good and service, where C is the current price of that item in that country currency and where

    asked by Mayl on June 23, 2010
  62. history

    who where the moors? And if you are a real teacher, dont give me wikipedia because a real teacher knows wikipedia is not a reliable source.

    asked by andrew on May 14, 2019
  63. math

    An artisan can sell 120 garden ornaments per week at $4 per ornament. For each $0.50 decrease in price, he can sell 20 more ornaments. a) determine algebraic expressions for the price of a garden ornament and the number of ornaments sold. b) write an

    asked by Gianluca on November 20, 2010
  64. algebra

    In your post, include the height, the width, and the calculations needed to determine the length of the diagonal of your computer monitor. After you have calculated the approximate length using the Pythagorean theorem, use a measuring device to measure the

    asked by Patrick on November 22, 2007
  65. Math...PLEASE

    I need help to see if I did these steps and problems right before I hand this in…I am stuck, and cannot figure out question three part b and H…I just need help with the proper function of b and h part. 1. An anthropologist drives a car at a speed of 30

    asked by Holly on December 3, 2009
  66. Algebra

    I need help to see if I did these steps and problems right before I hand this in…I am stuck, and cannot figure out question three part b and H…I just need help with the proper function of b and h part. 1. An anthropologist drives a car at a speed of 30

    asked by Holly on December 4, 2009
  67. C programming, not C++

    design and implement such a function and use it in a program called part3.c that allows someone to enter two real numbers and an epsilon value (also a real number) and reports if the two numbers are equal (+/- epsilon) or not. If you were asked this

    asked by apoorva on April 16, 2008
  68. how to understand this

    design and implement such a function and use it in a program called part3.c that allows someone to enter two real numbers and an epsilon value (also a real number) and reports if the two numbers are equal (+/- epsilon) or not. If you were asked this

    asked by apoorva on April 16, 2008
  69. Chemistry

    How is the law of conservation used to balance a chemical equation? In a chemical equation, the products formed have the same atoms as the original reactants; however, the atoms may be rearranged with different subscripts. The law of conservation of mass

    asked by Quinn on November 30, 2018
  70. calculus

    hi! just needed help on an FRQ for ap calculus ab. let me know if you have any questions for me. I'm just really confused as far as what I am meant to do. If you could walk me through it that would be amazing. THANKS!! A population is modeled by a function

    asked by phoebe on February 16, 2015
  71. Math

    4.Longview is located between Tyler and Marshall on the state highway. THe distance between Tyler and Longview is 45 miles. THe distance between Longview and Marshall is 25 miles. Which equation could be used to find d, the round trip between Tyler and

    asked by Jerald on April 3, 2013
  72. AP Chemistry

    1. Equilibrium 2SO3(g) O2(g) + 2SO2(g) A 3.21g sample of sulfur trioxide is placed in a 2.25 L cylinder and allowed to reach equilibrium at a constant temperature of 500 , as shown in the above equation. Analysis shows 1.23 X 10^-2 mol of sulfur dioxide at

    asked by anonymous on April 10, 2007
  73. Calc 3

    A cooling tower for a nuclear reactor is to be constructed in the shape of a hyperboloid of one sheet. The diameter at the base is 300 m and the minimum diameter, 500 m above the base, is 200 m. Find an equation describing the shape of the tower in the

    asked by Becky on September 12, 2012
  74. pre-algebra

    You are working on a polynomials problem with algebra tiles. You have five big squares, seven rectangles, and eight small squares on your desk. your classmate leans over and borrows three big squares, one rectangle, and five small squares. Write an

    asked by Dj on March 17, 2008
  75. Chemistry

    Diethyl ether (also known as “ether”), C4H10O (l), is an organic compound that has long been used as a surgical anesthetic. The complete combustion of 1 mol of C4H10O (l) to CO2 (g) and H2O (l) yields ΔH °=-2723.7 kJ. a) Write a balanced equation for

    asked by Feufolia on March 10, 2016
  76. Hydrodynamics, Fluid Mechanics

    Assume δxi, δzi

    asked by Johan on March 5, 2019
  77. psychology

    how can we know that the world around us is real and what do we mean by real?

    asked by abigael gamboa on September 20, 2011
  78. Statification in Sociology

    White Trash author Isenberg has a very pessimistic view of American ideal( real vs ideal culture) Do you think she's right that these are more ideal than real from a historical perspective? Poverty, who is poor, what the working people look like, racial

    asked by Penny on February 7, 2017
  79. Chemistry Check

    The Synthesis of hydrogen chloride is written H2+Cl2==>2HCl. 3L of hydrogen are used and all gasses are at STP. The volume of HCL produced in the reaction would be _______ L. would the answer be 5.96? Three liters of H2 yields six liters of HCl, from the

    asked by Briana on January 19, 2007
  80. physics

    TRUE OR FALSE The virtual image formed by a convex mirror is always enlarged. A convex mirror never forms a real image of a real object. When the object of a concave mirror is inside the focal point, the image is virtual. The image produced by a convex

    asked by help? on May 24, 2008
  81. Algebra

    Need help with two questions. I've been stuck on them for a while now. 1) Find a general form of an equation of the line through the point A that satisfies the given condition. A(−2, 5) slope 3/4 2)Find a general form of an equation of the line through

    asked by Jim on February 25, 2013
  82. calculus

    A research chemist has two different salt water solutions. Solution 1 is 25% salt and solution 2 is 20% salt. She wants to have 1 liter of 22% solution. How much of each solution should she mix together to get the desired solution?

    asked by Anonymous on January 25, 2018
  83. Algebra

    Can you please help me with this problem: The x-intercept of a line has a value of -3/2 and a y intercept of 3. Another line has a slope that is three times the slope of the first line and has a y-intercept that is 28 more than the first line's

    asked by Lucille on December 11, 2016
  84. science

    For a machine with an efficiency of 80%, what is the work output of the machine if its work input is 2,000 joules? would i divide 2000/.80? which gives me 2500? Also, If a machine requires an effort force of 750 newtons applied over a distance of 2 meters,

    asked by please help(: on November 4, 2009
  85. Physics

    I solved the following question: "A ball is launched from the top of a 320 m high building at 50 m/s at an angle of 37 degrees to the horizontal. For the first 10 seconds of flight, make a table of the vertical position from the ground versus time similar

    asked by Joe on November 1, 2010
  86. Physics

    The equation describing the (r, \theta ) coordinates of points along a single field line of a magnetic dipole is r=R_0 \sin ^2(\theta ) where \theta =0 is in the direction of the dipole moment and R_0 is a constant which is different for each field line.

    asked by Phy on April 6, 2013
  87. chemistry

    Oxalic acid (H2C2O4) can be used to remove rust according to the following balanced equation: Fe2O3 + 6H2C2O4 --> 2Fe(C2O4)33- +3H2O + 6H+ Calculate the number of grams of rust that can be removed by 5.00 x 102 ml of a 0.122M solution of oxalic acid. I

    asked by amber on October 4, 2010
  88. Chemistry

    A 1.50-g mixture of the solid salts Na2SO4(molar mass 142.04 g/mol) and Pb(NO3)2(molar mass 331.20 g/mol) forms an aqueous solution with the precipitation of PbSO4 molar mass 303.26 g mol The precipitate was filtered and dried, and its mass was determined

    asked by Anwa on March 20, 2017
  89. math

    60 ml of solution A is mixed with 120 ml of solution B to produce solution C which contains 8% of pure acid. If 80ml of solution A is mixed with 40ml of solution B, a solution D containing 10% of pure acid can be produced. find the percentage of pure acid

    asked by anjan on July 5, 2011
  90. chemistry - Dr.Bob222 please help

    Hi Everyone, Anyone want to try giving these a shot? The right electrode in a cell is a piece of copper immersed in a 1.00 L solution of 0.0701 F copper sulfate. The left electrode is a galvanized nail (i.e., an iron nail that is completely coated with a

    asked by ajones51 on November 7, 2006
  91. Big review 4 finals (2 posts in 1) check my work

    A 7.58 gram sample of benzoic acid, C6H5CO2H, is dissolved in 100 mL of benzene. The density of benzene is 0.879 g/mL. What is the molality of the benzoic acid? Sol: Convert mL to grams benzene. 100 mL * (0.879g benzene/1 mL) = 87.9 g Molality = #

    asked by Kizner (chem) on June 14, 2006
  92. Physics

    One object is thrown straight up at 54.9 m/s from the ground at the base of a building with is 157.9 meters tall. At the same time the object is thrown up at the bottom of the building, another object is thrown straight down at the top of the building. If

    asked by Kimmy on September 24, 2014
  93. poiseuille's law

    GIVEN: L = 3.0 cm = 0.03 m r = 0.3 mm = 0.0003 m (delta) y = 1.0 m 1 pint = 500 cm^3 [approx.] given a) Find the rate of flow, F = ? b) How long will it taken to inject 1 point of blood, t = ? a & b) I know we need to find the pressure or speed. F = (P at)

    asked by Sarah on November 26, 2013
  94. Chemistry

    A 35.00 mL sample of water at 30.0°C is placed in an open container with an external pressure of 1.00 atm. 30.0 kJ of heat is added to the water sample. The density of water is 1 g/mL. (a) How many grams of liquid water remain at the end of the process?

    asked by N on February 11, 2015
  95. Math

    people located less than 10 km from the hospital are judged to have excellent access to the hospital, those located exactly 10 km away have acceptable access, any anyone living further than 10 km away has poor access. a) If the hospital is located at

    asked by 786 on March 8, 2016
  96. maths

    please help im quite stuck with this question a boat sails in a straight line, its position at time t is (-t+600,2t-300). a man stands on a small island, at position (200,100). due to fog, he can see objects of radius 200m centred at his position. a) find

    asked by braidy on May 21, 2007
  97. math

    1. In this problem, we analyze the profit found for sales of decorative tiles. A demand equation (sometimes called a demand curve) shows how much money people would pay for a product depending on how much of that product is available on the open market.

    asked by Jesse on June 25, 2010
  98. Chemistry

    Each of the following mixtures is placed in a dialyzing bag and immersed in distilled water. Circle the substances that will be found outside the bag in the distilled water. a. KCl solution and glucose solution b. albumin solution (colloid) c. albumin

    asked by porsha on June 13, 2017
  99. college algebra--please help

    what does Descartes rule of signs tell you about the possible number of positive real number zeros and the possible number of negative real zeros of the function? 1. f(x)=2x^5-5x^2+x-1 2. f(x)=5x^6+7x^4-x-6 please show work

    asked by ladybug on November 19, 2012
  100. math

    let line A be the graph of the equation x+7y = 3 and let line B be given by the equation 2x + 15y = 6. Use an augmented matrix to determine if the two lines meet and if so at which point. Graph the two lines and indicate their meeting point if it exists.

    asked by Lisa on July 1, 2017

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