1. College-Chemistry

    NaOH(s)+ H2SO4(aq)=Na2SO4(aq) + H2O(l) Consider the unbalanced equation above.A 0.900 g sample of impure NaOH was dissolved in water and required 37.0 mL of 0.145 M H2SO4 solution to react with the NaOH in the sample. What was the mass percent of NaOH in

    asked by Tiffany on February 26, 2010
  2. Math

    A piece of cardboard has a length of 60cm and a width of 40cm. In order to make the cardboard into an open box, a box with no lid), a piece of length x must be cut out of each corner. Write an equation to represent each dimension of the box.

    asked by Kate on July 26, 2011
  3. math

    Jewel uses 1/8 lb of cheese to make a sandwich in the cafeteria where she works.She purchased a 5 lb block of cheese earlier this week and has already used 1 3/4 lb from the block.Which equation could be used to find n, the number of sandwiches that jewel

    asked by thmas on February 20, 2014
  4. electrical technology

    A battery of 9 V charges a capacitor of 47 ìF through a resistor. What resistor value needs to be used to obtain a voltage across the capacitor of 8 V when 10 seconds have elapsed ? You will need to obtain the standard equation for the voltage across the

    asked by john on March 7, 2016
  5. Chemistry

    The balanced net ionic equation resulting from addition of aqueous hydrochloric acid to solid chromium(III) hydroxide is: A. Cr(OH)3 (s) + 3 HCl (aq) 3 H2O (l) + CrCl3 (aq) B. Cr(OH)3 (s) + 3 Cl- (aq) 3 OH- (l) + CrCl3 (aq) C. Cr(OH)3 (s) + 3 H+ (aq) + 3

    asked by Morgan on February 20, 2015
  6. Math

    We have 48$ to spend on soda and chips for a party. A six-pack of soda cost $6 and a bag of chips cost $4. The number of six-packs we can afford, y, is a function of the number of bags of chips we decide to buy,x. Find an equation relating x and y.

    asked by George Carl on January 30, 2018
  7. MATHh

    Include the LET statement for the equation below: An art dealer advises that, for the best display of a painting, the area of the frame should be 1/5 the area of the painting. Determine the best width of the frame for a painting 20-cm by 20-cm, if the

    asked by T on April 9, 2018
  8. Need help fast on calc

    original curve: 2y^3+6(x^2)y-12x^2+6y=1 dy/dx=(4x-2xy)/(x^2+y^2+1) a) write an equation of each horizontal tangent line to the curve b) the line through the origin with the slope .1 is tangent to the curve at P. Find x and y of point P. -when plugging y as

    asked by Craig on November 12, 2008
  9. Physics

    The equation of a transverse wave travelling wave on a string is: Y=3 cos[3.14(0.5x-200t)] Where x and y in cm and t is in second. a)find the amplitude, wave length,frequency period,velocity of propagation. b)if the mass per unit length of the string is

    asked by Megha on March 3, 2016
  10. math

    In vanessa's coin bank there are 4 times as many quaters as nickels, 2 fewer dimes than nickels, and 15 pennies. the total amount in the bank is $5.80. How many of each coin are in the bank? assign a variable to unknown and write an equation to find

    asked by Niki on July 24, 2012
  11. Chemistry

    A handbook gives the heat of combustion of liquid carbon disulfide as -3.42 kcal/g of the liquid. Write the equation representing the combustion of 1 mol of carbon disufide and the accompanying ΔH value. (hint: the sulfur containing combustion product is

    asked by Anonymous on October 1, 2016
  12. algebra

    hi can someone help me with this problem. i cant figure out which equation to use. thanks a full-price ticket for a college basketball game costs $2.50, and a student ticket costs $1.75. if 585 tickets were sold , and the total reciepts were $1,217,25, how

    asked by ramla on February 2, 2009
  13. Statistics

    Age at onset of dementia was determined for a sample of adults between the ages of 60 and 75. For 15 subjects, the results were SumX=1008, and Sum(X-M)^2=140.4. Use this information to answer the following: a. What is the mean and SD for this data? b.

    asked by daniel on February 10, 2014
  14. Statistics

    Age at onset of dementia was determined for a sample pf adults between the ages of 60 and 75. For 15 subjects, the results were SumX=1008, and Sum(X-M)^2=140.4. Use this information to answer the following: a. What is the mean and SD for this data? b.

    asked by daniel on February 10, 2014
  15. BCIS

    You need to use the help section in your Excel program (press the F1 key and then use the search feature). If you need additional information about Excel, you can use your textbook or go to http://support.microsoft.com/search/, select the particluar

    asked by Writeacher on May 21, 2007
  16. SCI230 UOP

    Can someone give me an idea on how my outline should look? I have a checkpoint due tomorrow titled: Article Critique Outline. I chose the topic: Thousands of Undiscovered Plant Species Face Extinction. Guidelines: - Introduction to paper and chosen topic -

    asked by Interprize on November 1, 2010
  17. chemistry

    The energy levels the electron can occupy in the He+ ion can be calculated using the energy level equation. Calculate the frequency (Hz) of the photon emitted when the electron goes from a n= 4.00 energy level to a n= 3 energy level. Express answer in

    asked by tammy on January 31, 2012
  18. Algebra

    Hello there! I just want to know how to solve this! Question: A train travels 250 miles at a constant speed (x), in miles per hour. Write an equation that can be used to find the speed of the train, if the time to travel 250 miles is 5 hours. Thank you in

    asked by Naeun on February 26, 2019
  19. Math

    Lenlen cut a rectangular block of cheese into cubes with an edge of 3cm each. The base area of the block is 36 cm squared. If the block is 6 cm high, how many cubes of cheese did Lenlen get in all? That is my math hw It needs an equation solution and

    asked by Lol im a 10 y.o. Girl on January 18, 2016
  20. chemistry

    1.2 mol HCl and 3.9 mol NaOH react to this equation, HCl + NaOH=NaCl + H20 If the limited reactant id HCl, calculate the amount of NaCl formed in moles. Please help and explain how to solve this so I may understand it better please and thank you.

    asked by Javier on March 14, 2017
  21. Math

    For each function, i) determine the corresponding reciprocal function, y =1/f(x) ii) state the non-permissible values of x and the equation(s) of the vertical asymptote(s) of the reciprocal function iii) determine the x-intercepts and the y-intercept of

    asked by Patricia on January 1, 2016
  22. Algebra II Honors

    A rectangular garden is 25 feet long by 10 feet wide. You have enough mulch to cover 1000 square feet. You would like to extend both the length and the width of the garden by x feet to use up all of the mulch. Write an equation to represent the area of the

    asked by Pooh on December 18, 2016
  23. Calculus

    Suppose an E. coli culture is growing exponentially at 37 ◦C. After 20 minutes at that temperature, there are 1.28×10^7 E. coli cells. After 60 minutes, there are 2.4×10^7 cells. How long does it take for the culture to have double the amount of cells

    asked by Annie on October 30, 2014
  24. significant figures- chemistry

    I'm having trouble understanding significant figures. If a problem is requires two equations to finish, which of the original measurements do I use to figure out the significant figure? For ex. 3.001+4.32= 7.321. Then I use this answer for a different

    asked by mae on September 13, 2013
  25. Math

    The phone company charges a flat rate of $2.50 plus and additional $0.50 each minute for a long-distance phone call. Write an equation to represent the total cost of making a long-distance phone call.

    asked by Yasmen on June 18, 2013
  26. Chemistry

    Inflating a balloon requires more pressure than the pressure of the atmosphere outside of the balloon, in order to compensate for the stretchiness of the balloon’s material. Would you need more or less gas to compensate? (Hint: Consider the ideal gas law

    asked by Anonymous on May 16, 2016
  27. Math

    Two small arrays have neen conbined to make a big arraay. What are the dimensions and product of the big array? Fill in the equation that shows this big array broken into two small arrays. 10x6 10x5 ?

    asked by Kenneth on January 29, 2010
  28. Science

    When water is electrolyzed, two gases ar produced. As indicated in the chemical equation, twice the volume of one gas is produced compared to the other. a) Which gas is produced in larger quantities? Explain * I think it's hydrogen, but i am not sure why

    asked by Sam on April 10, 2008
  29. chemistry

    Aluminum reacts with hydrochloric acid to produce aluminum chloride and hydrogen gas. What mass of hydrochloric acid reacts when 87.7 grams of aluminum dissolves? The equation is 2Al+6HCl=2AlCl3+3H2

    asked by Kendall on January 31, 2012
  30. Physics

    A mass (0.5 kg) and spring (k = 250 N/m) system oscillates with an amplitude of 3.5 cm. a) What is the total mechanical energy of the system? b) What is the maximum speed of the mass? c) What is the maximum acceleration of the mass? I need help please! Do

    asked by Anonymous on December 2, 2016
  31. college math

    please help me write the equation and solve for it. 1).in a basketball game, eric made half as many free throws as dan. if the total number of free throws made by both men was 18, how many free theows did eric make?

    asked by erin on September 27, 2011
  32. Math

    Manuel bought 9 pounds of apples. He has eaten three fourths of a pound so far and has​ $15 worth of apples left. Write and solve an equation to find the cost of the apples per pound to the nearest dollar. How much did the apples cost per​ pound?

    asked by Kyle on November 14, 2016
  33. Math

    An initial deposit of $35,000 grows at an annual rate of 7% for 23 years. Compare the final balances resulting from continuous compounding and annual compounding. We're supposed to use the equation A=P(1+r/k)^kt but I don't know what I'm supposed to use

    asked by anonymous on November 8, 2010
  34. UA

    Consider the folllowing chemical equation TiCL4(g) + @Mg(i) --- Ti(s) + 2MgCl(i) 3.54 x 10 to powerof 7g of TiCl4(g) were reacted completely and 7.91 x 10 to pwer of 10 of Ti(s) was obtained in the experiment, A) Calculate the theoretical yield of Ti(s) b)

    asked by Zaza on September 29, 2016
  35. algebra

    As a diver descends into fresh water we have determined that for every 10 meters of depth the pressure on the diver increases by one atmosphere. Find the equation of the line representing this relationship if we know that when the diver is at a depth of 25

    asked by Anonymous on December 19, 2012
  36. rubidoux high school

    Susan is putting money into a checking account. Let y represent the total amount of money in the account (in dollars). Let x represent the number of weeks Susan has been adding money. Suppose that x and y are related by the equation = + 30 x 350 y

    asked by jessica mendez on February 11, 2015
  37. Algebra

    An object which is dropped from 100 feet above ground falls according to the formula s = -16t^2 + 100, where s is the distance from ground level at time t. Which equation is equivalent to this formula? S-100 = t^2 ------- -16 S-100 = t^2 ------ 16 s - 100

    asked by mary on April 26, 2011
  38. Chemistry

    The equation for the reaction of sucrose(sugar)with oxygen is C12H22O11+12O2--->12CO2+11H2O how many g of co2 is produced per g of sucrose used?how many mol of oxygen gas is needed to react with 1.0g sucrose?(C12H22O11=342g/mol)

    asked by akhmal on June 22, 2014
  39. Factor completely

    I am to factor this completely and I am stuck. 2r^3 + 8r^2 +6r Note: x^2 is x-squared (that is, x with the superscript 2), etc. 2 is a factor and r is a factor so the equation becomes 2r(r^2 + 4r + 3) then we can factor the term in parentheses. To do that,

    asked by Bekki on June 12, 2006
  40. phyiscs

    A 14.5 kg toy car is driving around a horizontal circular track with a period of 8.0 seconds. The radius of the circular track is 1.1 meters. What is the force of friction in Newtons between the car and the track that is necessary for the car to remain on

    asked by zach on May 7, 2018
  41. Math

    The half life of plutonium is 250 years. If the starting mass is 750g find; An equation that models the mass of plutonium P(t) for t years from now. And find the amount of time required to reduce the plutonium to 200g

    asked by Micheal on June 3, 2017
  42. Math

    During softball practice, a softball pitcher throws a ball whose height can be modeled by the equation h = -16t^2 (

    asked by Waleed on May 9, 2012
  43. Algebra 1

    Lopez spent 1/3 of his vacation money for travel and 2/5 for lodging. He spent $1100 for travel and lodging. What is the total amount of money spent? Directions: Write an equation to model the situation -------------------------- >< I am so sad. Plz help.

    asked by Lorexi on September 26, 2007
  44. Pre-calc

    a driver averaged 50 miles per hour on the round trip between akron, oh and Columbus, oh, 100 miles away. The average speeds for going and returning were x and y miles per hour, respectively. a. show that y=25x/x-25 b. determine the vertical and horizontal

    asked by Andy G on January 23, 2014
  45. Pre-Calc

    a driver averaged 50 miles per hour on the round trip between akron, oh and Columbus, oh, 100 miles away. The average speeds for going and returning were x and y miles per hour, respectively. a. show that y=25x/x-25 b. determine the vertical and horizontal

    asked by Andy G on January 22, 2014
  46. Probability

    Let θ be an unknown constant. Let W1,…,Wn be independent exponential random variables each with parameter 1. Let Xi=θ+Wi. What is the maximum likelihood estimate of θ based on a single observation X1=x1? Enter your answer in terms of x1 (enter as x_1)

    asked by Fire on May 25, 2015
  47. EARLY CHILDHOOD EDUCATION

    The infusion approach in the culturally appropriate curriculum calls into question which? 1. integrating the pluralistic nature of our society in all aspects of the learning enviroment 2. incorporating many perspectives and content from various groups into

    asked by Rhonda on November 25, 2006
  48. Accounting

    ══════════════════════ Memo: Whomever Date: A few minutes ago … From: Marie, Advanced Federal Taxation P.C. Re: 2007 Tax Return for New Client I received a call late last night from a prospective new client:

    asked by marie on February 17, 2008
  49. Math

    Can somebody please explain to me how to factor trinomials that contain two unknown variables and are complex sum & product?? Examples: 2x^2 + 13xy + 15y^2 11x^2 + 14xy + 3y^2 I understand how to factor trinomials that only have x as the variable, but

    asked by Danielle on April 4, 2007
  50. chemisty help

    for the reaction shown, compute the theoretical yield of the product in grams for each of the following initial amounts of reactants. Ti + 2F2 to make TiF4 There are 3 sub questions for this. Help me out with one, then I'll try to figure out the rest.

    asked by Becky on March 1, 2007
  51. math

    A class survey in a large class for first-year college students asked, “About how many minutes do you study on a typical weeknight?” The mean response of the 463 students was = 118 minutes. Suppose that we know that the study time follows a Normal

    asked by jordon on March 27, 2015
  52. STATISTICS

    The manager of an accounting office is studying the problem of incorrect account numbers being entered into the computer system and wishes to produce a p chart. A subgroup of 200 account numbers is selected from each day's enteries and checked to determine

    asked by Bettie on April 16, 2013
  53. Physics

    The drawing shows a model for the motion of the human forearm in throwing a dart. Because of the force applied by the triceps muscle, the forearm can rotate about an axis at the elbow joint. Assume that the forearm has the dimensions shown in the drawing

    asked by Anne on November 22, 2011
  54. Calculus

    f(x)= (-5x^3 + 3x^2 + 3x -5)/(-8x^2 +2x + 7) Find the equation of the non-vertical asymptote. y = ? Does f(x) intersect its non-vertical asymptote? (yes or no) If yes, what is the smallest value of x at which f(x) intersects its non-vertical asymptote?

    asked by gloria on June 3, 2012
  55. Calculus

    Find the range of y = (3x-1)/(2x^2 + x - 6) I was going to take the derivative of the numerator and denomenator and then use the quotent rule to find the derivative of the function and find the critical values but I ran into the imaginary number during the

    asked by Kate on July 25, 2010
  56. Physics

    1. Consider four vectors ~F1, ~F2, ~F3, and ~F4, where their magnitudes are F1= 57 N, F2= 38 N, F3= 25 N, and F4= 67 N. Let θ1= 130◦, θ2=−130◦, θ3= 29◦, and θ4=−64◦, measured from the positive x axis with the counter-clockwise angular

    asked by Fabricus on February 14, 2014
  57. Microeconomics

    Lisa needs to buy a textbook for the next economics class. The price at the bookstore is $65. One online site offers the same book for $55 and another site for $57. All prices include sales tax. The following table indicates the typical shipping and

    asked by Sarah on March 4, 2009
  58. Algrebra and Math

    Can you help me answer this question? I'm confused, and show me how you did it, that way I can understand on how to solve it more? The total number of students in 8th Grade is 32, including Fran and Billy, Who are one of the female and male students

    asked by Anonymous on October 5, 2016
  59. physics

    1.A motorist drive along a straight road at a constant speed of 15.0 m/s.Just as she passes a parked motorcycle police officer,the officer starts to accelerate at 2.0 m/s^2 to overtake her. Assuming the officer maintains this acceleration, a) determine the

    asked by Anonymous on September 9, 2014
  60. physics

    1.A motorist drive along a straight road at a constant speed of 15.0 m/s.Just as she passes a parked motorcycle police officer,the officer starts to accelerate at 2.0 m/s^2 to overtake her. Assuming the officer maintains this acceleration, a) determine the

    asked by Anonymous on September 9, 2014
  61. Physics Help

    a) On the Acme W&W company production line, parts have to be transported 100 m by conveyor belt to a machine area. The parts move at a constant speed of 2.5 m/s. How much time does it take to move a part 100 m? On the same conveyor belt as described in

    asked by Tim on September 11, 2014
  62. Chemistry

    These are all review questions for my summer assignment. Do not know: !) Explain what an ionic lattice is and include a diagram. 2)Draw a diagram to show how Na and CL2 combine to form NaCl Unsure: !)Select two compounds and explain when Roman numerals are

    asked by Issac on July 4, 2015
  63. chemistry

    How many grams of O_2(g) are needed to react completely with 3.95 g of H_2(g) according to the following balanced chemical equation: 2H_2(g) + O_2(g)--> 2H_2_O(g) Molarity (M) is the number of moles of a solute per 1 L of solution--> M= (mol solute)/(L

    asked by Kane on October 3, 2017
  64. Chemistry

    If 10.5 g of hydrogen, H2, were mixed with 6.51 g of acetylene, C2H2, and allowed to react according to the following equation, what is the theoretical yield of ethane,C2H6 produced? If 7.00g of ethane, C2H6 were recovered at the end of the reaction , what

    asked by Anonymous on April 24, 2013
  65. Pre-Calculus

    Not sure what to solve... I tried to solve it but i ended up proving that it worked. a. Find the equations of the tangents at C (-2,1) and D (1,2) on the circle x^2+y^2=5 b. Find the point of intersection of the tangents. ~What I did was find the slope and

    asked by Anonymous on October 4, 2015
  66. Algebra

    A jet leaves the Charlotte, North Carolina, airport traveling at an average rate of 564 km/h. Another jet leaves the airport one half hour later traveling at 744km/h in the same direction. Use an equation to find how long the second jet will take to

    asked by Brianna on October 13, 2011
  67. Math

    Describe in words, a situation involving this equation that could be represented 4t+8=3(3.5t). t= miles Mark and Sandy wanted to have a race. Mark has an 8 mile head start and goes 4 miles per hour. Sandy decides to go 3 times as fast and goes 3.5 miles

    asked by Jerald on November 12, 2013
  68. Calculus

    If the equation of motion of a particle is given by s = A cos(ωt + δ), the particle is said to undergo simple harmonic motion. (a) Find the velocity of the particle at time t. s'(t) = - A ω sin(ωt + δ) I figured out how to do part a, but I don't know

    asked by nyk on November 8, 2011
  69. Proportions

    A 130 lbs man burned 194 calories during a 30 minute tennis session. How many calories would a 250 lbs man burn in the same time frame doing the same activity(assuming they burn calories at the same rate)? I just need help figuring out what the equation

    asked by Elizabeth on September 26, 2015
  70. statistics

    An appliance repair shop owner has fitted the quadratic trend equation ŷ = 90 + 0.9x + 3x² to a time series of annual repair orders, with y= the number of repair orders and x= 1 for 2000. Forecast the number of repair orders for 2008; for 2010

    asked by Yadira M on August 16, 2009
  71. algebra

    Samantha's homework is to determine the dimensions of her rectangular backyard. She knows that the length is 10 feet more than the width, and the total area is 144 square feet. Write an equation that Samantha could use to solve this problem. Then find the

    asked by Anonymous on February 10, 2011
  72. chemistry

    Sodium carbonate reacts with nitric acid according to the following equation: Na2CO3+2HNO3-->2NaNO3+CO2+H2O a. how many moles of Na2CO3 are required to produce 100.0 g of NaNO3? b. if 7.50g of Na2CO3 reacts, how many moles of CO2 are produced?

    asked by Kay on May 28, 2012
  73. Chemistry

    Question: if 10.0 mg of Mg(OH)2 is placed in 100 ml of pure water, will all of the sample dissolve before equilibrium can become established, or will some sample remain undissolved? i got the Molarity of Mg(OH)2 to be .00172 M. Where does that exactly go

    asked by Eliz on May 11, 2009
  74. Math

    A deer population was measured to be 4000. Two years later , it was measured to be 4300. assume the population grows exponentially. A). Write an equation describe this situation. Find values of all constants. b) What will the population be four years after

    asked by George on June 17, 2018
  75. Chemistry

    Use Equation 7.1 and assuming that core electrons contribute 1.00 and valence electrons contribute nothing to the screening constant, S, calculate Zeff} for these two ions. Express your answers as integers. Enter your answers numerically separated by a

    asked by Caitlin on September 17, 2011
  76. Science

    trying to work out the angular size of Saturn I know the equation is 57degrees times (actual size divide distance) = Angular size so I have the following: 57deg times (120535 div 1195772020) = 0.005745.... it goes on a fair way. 0.005745 degrees... is this

    asked by Paul on October 22, 2008
  77. chemistry... HELPP

    Chemistry Equilibrium Constant PLEASE Help!? In an experiment, equal volumes of 0.00150 M FeCl3 and 0.00150 M NaSCN were mixed together and reacted according to the equation: Fe3+ (aq) + SCN– (aq) Fe(SCN)2+ (aq) The equilibrium concentration of FeSCN

    asked by LS on October 16, 2012
  78. Math

    During her holiday, hannah rent a bike She pays a fixed cost of $8 and then a cost of $4.50 per day Hannah pays with a $50 note and receives $10.50 change. Calculate for how many days Hannah rents the bike ( simultaneous equation ) plz explain also

    asked by Janet on September 22, 2018
  79. Physics

    A single conservative force acts on a 5.00 kg particle. The equation Fx = (2x + 4) N describes this force, where x is in meters. As the particle moves along the x axis from x = 1.40 m to x = 5.80 m, calculate the following. (a) the work done by this force

    asked by ucieng on February 6, 2010
  80. Algebra

    For each diagram find the relationship between the number of shapes and the perimeter of the figure they form. Represent this relationship using a table, words, an equation, and a graph. Below there are 3 sets of Pentagon's there is one by itself with the

    asked by Anonymous on November 20, 2017
  81. Math

    Use integer values of x from -3 to graph the equation. y = -|x| 1. pic with 2 lines forming a v coming down from the top and ending at the origin. Very wide line. 2. pic with that image just upside down 3. pic with 3. but a thinner line range 4. Pretty

    asked by Anonymous on May 11, 2018
  82. physics helpt please?

    A copper wire or length 2.0M, with cross-sectional area 7.1x10^-6 m^2 and youngs modulus of 11x10^10 N/m^2 has a 200 kg load hung on it. what is its increase in length? F/A=Y* change in L/Length = (200*9.8)/7.1x10^-6=11x10^10* delta L/2m? am i even setting

    asked by natali on November 13, 2007
  83. Math Algebra 1

    Suppose you and your friends form a band and you want to record a demo. Studio A rents $125 plus $50 an hour Studio B rents for $200 and $25 and hour. Let t=the number of hours and c = cost. Solve/Write and equation to represent the cost of each studio

    asked by Carlos on December 20, 2017
  84. Math

    At a club play, 117 tickets were sold. Adults' tickets cost $1.25 and children's tickets cost $0.75. In all, $129.75 was taken in. How many of each kind of ticket were sold? I don't know how to set up the equation. Work Done Is it: 1.25x + 0.75y=129.75

    asked by Esther on October 26, 2009
  85. Algebra

    How would I work this? The equation h= -16t^2 +112t gives the height of an arrow shot upward from the ground with an initial velocity of 112 ft/s, where t is the time after the arrow leaves the ground. Find the time it takes for the arrow to reach a height

    asked by TJ on October 17, 2007
  86. Chemistry

    I am translating the sentence "HF can be added to calcium carbonate to produce aqueous calcium fluoride carbon dioxide (CO2) and liquid water" into a chemical equation. I'm not sure how you write out Calcium Carbonate symbolically, or how you write clacium

    asked by Gwen on April 2, 2009
  87. Algebra 1- Math

    A software company started with 2 employees. In 6 months, the company had 14 employees. The number of employees increased at a steady rate. a. create 2 ordered pairs. b. find the slope. c. Interpret the meaning of the slope. d. Find the prediction

    asked by Tony on December 14, 2012
  88. Induced current.

    (c) Find an expression for the magnitude of the induced current in the loop at time t, in terms of the symbols above and appropriate constants. What is the maximum magnitude of the induced current in mA and how many times does this occur per second?

    asked by Anon on February 3, 2018
  89. Algebra

    A jet leaves the Charlotte, North Carolina, airport traveling at an average rate of 564 km/h. Another jet leaves the airport one half hour later traveling at 744km/h in the same direction. Use an equation to find how long the second jet will take to

    asked by Joy on October 14, 2011
  90. ALGEBRA

    Solve by setting up the proper equation to describe the facts given and then carrying out the mathematical calculations to solve for the unknown variable(s). The length of a rectangle is 3 times the width. The difference between the length and the width is

    asked by ALISON15 on July 5, 2012
  91. math

    a company will make $150000 profit if it manufactures 1000000 items and $1750000 profit if it manufactures 500000 items. the relationship bewteen the number of drives manuactured and the profit is a linear. write an equation that gives the profit P when n

    asked by Anonymous on February 2, 2012
  92. chemistry

    The compound PtCl2(NH3)2 is effective as a treatment for some cancers. It is synthesized by the reaction shown in the equation K2PtCl4(aq) + 2 NH3(aq) → 2 KCl(aq) + PtCl2(NH3)2(aq). How much K2PtCl4 must react in order to produce 64.1 g of PtCl2(NH3)2?

    asked by Allan on January 21, 2019
  93. Geology

    If the decay constant for radioactive decay of ^40 K is λ = 5.543*10^(-10) / year, use this equation to calculate ages of the samples in the following table: t(1/2) = 0.693/λ 1)What is the half life of 40K? table -----Np --- Nd---- Nd/Np

    asked by Maura on November 21, 2013
  94. chemistry

    In a certain experiment, the rate constant, k, was measured as a function of the temperature, T.  Two data points were as follows: (A) 25°C, 1.1 x 10–5 min–1, and (B) 225°C, 2.4 x 10-2 min–1. The student who performed the experiment then plotted

    asked by jessica on June 1, 2016
  95. chemistry

    Aluminum metal reacts with oxygen gas (O2) to form aluminum oxide. a. Write a balanced equation for this oxidation-reduction reaction. (In this problem you need not worry about the physical state of the reactants or product.) 2Al+3O2=2Al2O3 b. which

    asked by krystal on February 14, 2012
  96. AP physics

    A 2.10x10^3 kg car starts from rest at the top of a 5.8 m long driveway that is sloped at 25° with the horizontal. If an average friction force of 4.0X10^3 N impedes the motion, find the speed of the car at the bottom of the driveway. im using the

    asked by RNH on November 10, 2010
  97. physics

    A jumbo jet must reach a speed of 360 km/h on the runway for takeoff. What is the least constant acceleration needed for takeoff form a 1.80 km runway? I couldn't figure out which equation to use I think there are a couple of equations involved here.

    asked by sarah on September 11, 2006
  98. Physics

    Your instructor will walk at constant velocity beneath the announcer's booth of the varsity baseball field (a two-story tower). Your teammate will stand tall on top of the announcer booth's steps, with her or his dropping hand raised above his/her head.

    asked by Jeff on September 21, 2014
  99. physics

    i'm having a lot of trouble with these and can't seem to figure them out no matter how many times i replace variables in my equations and write down what i know and need and i don't know what to do about it anymore. The speed of a boat undergoing constant

    asked by orpheus on September 21, 2014
  100. math (5)

    The monthly profit (in dollars) of Bond and Barker Department Store depends on the level of inventory x (in thousands of dollars) and the floor space y (in thousands of square feet) available for display of the merchandise, as given by the equation below.

    asked by Mia on April 30, 2014

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