Questions Asked on
May 3, 2014

  1. Algebra

    Bob drove 120 miles on his vacation. He drove an average of 1.2 times faster on the 2nd 60 miles of his trip than he did on the first half of the trip. Which expression represents the time he spend driving? Let x=his speed on the first half of the trip.

    asked by Sandra
  2. math check probability

    A number cube with the numbers 1 through 6 is rolled. Find the given probability. ---------------------------------------- 2. P(number ≥ 3) A. 4/6 B. 1/6***** C. 2/6 D. 5/6

    asked by me
  3. Algebra

    A catering company charges a $300.00 set up fee and $10.00 per person for a lunch buffet. Approximately how many people must attend the lunch so that the total cost per person is $14.00? (1 point) • 75 people • 30 people • 214 people • 440 people

    asked by Sandra
  4. Chemistry - Science (Dr. Bob222)

    Ammonium metavanadate reacts with sulfur dioxide in acidic solution as follows (hydrogen ions and H2O omitted): xVO3^–^ + ySO2 → xVO^2+^ + ySO4^2–^ What is the ratio of x : y? A. 1 : 1 B. 1 : 2 C. 2 : 1 D. 1 : 3 E. 3 : 1

    asked by Ana
  5. speech

    Give me a persuasive speech on the topic that says that "traditional healers should be allowed to practise and prescribe medicine in hospital and clinics."

    asked by Zethembiso
  6. Calculus Help

    Set up an integral for the volume a solid torus (the donut-shaped solid shown in the figure) with radii br and aR. (Let a = 6 and b = 4.) By interpreting the integral as an area, find the volume V of the torus.

    asked by Kimberly :(
  7. Algebra

    Dorothy and Rosanne are baking cookies for a party. Working alone, Rosanne can finish the cookies in 6 hours. Dorothy can finish them in 8 hours if she is working alone. How long will it take them to bake the cookies if they are working together? Round

    asked by Sandra
  8. chemistry - Science

    A zinc-copper battery is constructed as follows (standard reduction potentials given below): Zn | Zn2+ (0.10 M) || Cu2+ (2.50 M) | Cu Zn2+ + 2 e- → Zn(s) Eº = -0.76 V Cu2+ + 2 e- → Cu(s) Eº = 0.34 V The mass of each electrode is 200 g. Each half-cell

    asked by Ana
  9. Chemistry - Science

    A fuel cell designed to react grain alcohol with oxygen has the following net reaction: C2H5OH(l) + 3O2(g) → 2CO2(g) + 3H2O(l) The maximum work that 1 mol of alcohol can yield by this process is 1320 kJ. What is the theoretical maximum voltage this cell

    asked by Ana
  10. PLEASE HELP!! Org. & Admin. of Sports & Recreation

    The least valid qualification in hiring a coach is: (A) A College superstar B Thorough knowledge of rules and techniques C Ability to teach D Understanding of players E Desirable personality The interests of all athletes participating are best served if:

    asked by Patti
  11. General Chem 2

    Given: Al3+(aq) + 3e– --> Al(s); E° = –1.66 V I2(s) + 2e– --> 2I–(aq); E° = 0.54 V What is ∆G° for the following cell reaction? 2AlI3(aq) --> 2Al(s) + 3I2(s) A) 4.2 × 105 J B) –6.5 × 105 J C) –1.3 × 106 J D) 1.3 × 106 J E) –4.2 ×

    asked by Katie
  12. hostos

    the average math sat score is 500 with a standard deviation of 100. a particular high school claims that its students have usually high math SAT scores a random sampel of 50 students from this school was selected, and the mean math sat score was 530 . Is

    asked by tina
  13. chemistry - Science

    A zinc-copper battery is constructed as follows (standard reduction potentials given below): Zn | Zn2+ (0.10 M) || Cu2+ (2.50 M) | Cu Zn2+ + 2 e- → Zn(s) Eº = -0.76 V Cu2+ + 2 e- → Cu(s) Eº = 0.34 V The mass of each electrode is 200 g. Each half-cell

    asked by Ana
  14. math

    calculate the area of a rectangle which measures 21m by 7m.

    asked by Anonymous
  15. Calc

    The volume of the solid obtained by rotating the region enclosed by y=e^(5x)+2 y=0 x=0 x=0.7 about the x-axis can be computed using the method of disks or washers via an integral A=? b=? V=?

    asked by Josh
  16. Ethics in Criminal Justice

    The argument that aiding or assisting others might be degrading to them, implying that they are incapable of helping themselves, is an argument commonly used to support: A. Qualitative varieties of utilitarianism. B. Hedonism. C. Ethical egoism D. Plea

    asked by Erica
  17. Math

    A patio was to be laid in a design with one tile in the first row,two tiles in the second row,three tiles in the third row, and so on. Mr Tong had 60 tiles to use. How tiles should be placed in the bottom row to use the most tiles?

    asked by Pam
  18. Spanish

    1. Los sábados nosotras no estudiamos. Maribel _____ salsa y yo _____ opera. Question 4 options: baila, canto bailas, canto bailan, canto bailamos, cantamos is it A 2. Erica: "¡Hola! ¿Cómo se llama usted?" Carolina: "_________ Erica. ¿Y usted?"

    asked by Amy
  19. managerial accounting

    Scott Manufacturing Co.’s static budget at 10,000 units of production includes $40,000 for direct labor and $4,000 for electric power. Total fixed costs are $23,000. At 12,000 units of production, a flexible budget would show:

    asked by Anonymous
  20. Chem Check Please!!!

    1) Calculate the cell potential, at 25 C, based upon the overall reaction Zn2+(aq) + 2 Fe2+(aq) -> Zn(s) + 2 Fe3+(aq) if [Zn2+] = 1.50 x 10^-4 M, [Fe3+] = 0.0200 M, and [Fe2+] = 0.0100 M. The standard reduction potentials are as follows: Zn2+(aq) + 2

    asked by Chris
  21. economics (7)

    Assume that a $1,000 bond issued in 2012 pays $100 in interest each year. What is the current yield on the bond if it can be purchased for Instructions: Enter your responses as a percent rounded to one decimal place. (a) $1,200? Yield on $1,200 bond is =

    asked by Mia
  22. Eco

    In January 2012, one US dollar was worth 50.0 Indian rupees. Suppose that over the next year the value of the Indian rupee decreases to 59.0 Indian rupees to one US dollar. Suppose also that the price level of all goods and services in India, as measured

    asked by Anna
  23. Math

    Jeff has 12 coins that have a total value of $2.25.If there are only quarters and dimes, how many of each kinds are there?

    asked by Pam
  24. physics

    A proton is suspended at rest in a uniform field E.Take into account gravity and determine E.

    asked by javen kenso
  25. Spanish

    En este momento, mis hermanos __________ el sol y mi madre ____________ un libro. Question 14 options: a. está tomando, está leyendo b. están tomando, está durmiendo c. estamos tomando, estás leyendo d. están tomando, está leyendo im confused

    asked by Amy
  26. math

    A company's sales revenue decreased by 15% from one operating period to the next. Assuming no change in the prices of its inputs and outputs, by what percentage did: Fixed costs change? Unit variable costs change? Total variable costs change?

    asked by Di
  27. physics

    If a particle has kinetic energy K = 60 MeV when its momentum magnitude p = 100 MeV/c, what is the ratio m/me of its mass to the electron mass?

    asked by joshua
  28. economics

    are there any welsfare or subsidy payments that shoud be reviewed or added?

    asked by simamkele
  29. Math

    The book shelly is reading has 235pages. She has already read 110 pages. If she reads 25 pages a day from now on, how many more days will it take her to complete the book?

    asked by Pam
  30. Chemistry

    The heat released from the combustion of 0.05 g of white phosphorus increases the temperature if 150g of water from 25 C to 31.5 C. Calculate the enthalpy change for the reaction.

    asked by Heidy
  31. math

    The retail price of a pair of skis consists of the wholesale cost to the retailer plus the retailer's markup. If skis retailing for $712 are marked up by 60% of the wholesale cost, what is that wholesale cost?

    asked by Nj
  32. math

    Econocar offers two plans for one-week rentals of a compact car. A rate of $295 per week includes the first 1000 km. Extra distance costs 15 cents per kilometre. A weekly rate of $389 allows unlimited driving. Rounded to the nearest kilometre, beyond what

    asked by Nj
  33. Math (check)

    Which of the following is an example of a dependent event? 1 flipping two coins 2 rolling a number cube and spinning a spinner 3 choosing two scoops of ice cream 4 choosing a cookie at random, eating it, and then choosing another at random****?

    asked by me
  34. chemistry

    From the reaction below, calculate the free energy of formation for CH4(g) at 25°C, if ΔGfo(C8H8(g)) is 214.417 kJ/mol. 8CH4(g) ↔ C8H8(g) + 12H2(g) ΔGo = 620.735 kJ/mol I don't understand what equation to use. I thought it was dGfo-dGo but that

    asked by erica
  35. Chemistry - Science (Dr. Bob222)

    Use the following information to answer this question: Cu+(aq) + e- → Cu(s) E° = 0.521V Cu2+ (aq) + e- → Cu+ (aq) E° = 0.153 V. Given these half cell reactions, an aqueous solution of Cu+ ion in the absence of O2(g) : A. will be thermodynamically

    asked by Ana
  36. VOCABULARY

    WRITE A BRIEF SPEECH IN WHICH YOU SUMMARIZE THE STORY OF RINGL AND PIT, USING IT AS AN INSPIRING ANECDOTE TO SHOW YOUR AUDIENCE THAT THEY TOO CAN OVERCOME DIFFICULT CIRCUMSTANCES . USE AT LEAST TWO DETAILS FROM THE PASSAGE AND THEREE UNIT WORDS TO SUPPORT

    asked by EMMA
  37. Spanish

    Mi amigo Pedro ____ al fútbol todos los sábados y los domingos nosotros _____ en nuestro restaurante favorito. Question 11 options: jugamos, almuerza juegan, almuerzan juegas, almorzamos juega, almorzamos is it D 2. Los miércoles mi novia ______

    asked by Amy
  38. Criminal Justice

    Which of the following principles approves or disapproves of an action according to its tendency to promote happiness for the greatest number of people? A. Altruism B. Utility C. Hedonism D. Egoism I am stuck between B and C, but leaning towards B. Please

    asked by Erica
  39. business

    Keeping your purpose and desired outcome in mind as you write your message is most likely to help you evaluate whether your content:

    asked by Anonymous
  40. statistics

    It has been suggested that the rate of forgetting (coded as normal vs. fast) for word lists often used in psychological experiments may depend on the type of memory test employed, either free-recall or recognition. What is the best way to test this

    asked by June
  41. math

    The surface area of this rectangular prism is 38 square millimeters. What is the volume?

    asked by Scarlet
  42. mathss

    If x thousand dollars is spent on labor and y thousand dollars is spent on euqpment,The output of a certain factory will be Q(x,y)=2x^2+y^2+6y units.If 120,000 dollars is available,how should this be allocated between labor and equipment to generate the

    asked by tolasa
  43. chemistry

    The enthalpy of solution of nitrous oxide (N2O) in water is -12 kJ/mol and its solubility at 20 oC and 1.00 atm is 0.121 g per 100. g of water. Calculate the molal solubility of nitrous oxide in water at 1.600 atm and 20 oC. Hint, first find Henry's law

    asked by Raoul
  44. Ethics in Criminal Justice

    The rational, overriding principle promoted by utilitarianism is the: A. Greatest number principle. B. Greatest happiness principle. C. Greatest utility principle. D. None of the above. Now my textbook mentions two in this sentence: "The rational,

    asked by Erica
  45. FLUID MECHANICS

    For oil (SG =0.86 and μ = 0.025 Ns/m2) flow of 0.5 m3/s through a round pipe with diameter of 500 mm, determine the Reynolds Number. Determine also whether the flow is laminar or turbulent.

    asked by ANNA
  46. FLUID MECHANICS

    Water flows at a rate of 0.040 m3/s in a 0.15 m diameter pipe that contains a sudden contraction section to a 0.06 m diameter pipe. Determine the pressure drop across the contraction section. Determine also the pressure difference due to the losses.

    asked by ANNA
  47. Physics

    A construction worker is standing in a 2.6 m deep well, 3.1 m from the side of the well's wall. He tosses a hammer to a companion outside the well. If the hammer leaves his hand 1.0 m above the bottom of the well, at an angle of 35 degrees to the

    asked by Punisher_131
  48. Science

    Some teachers explain that meiosis is actually mitosis happening twice. Is this a correct assumption?Why might teachers say this and is it a true statement?

    asked by Zari
  49. math

    A college student wishes to compare tuition fee increases during the period 1999 to 2009 to the general increase in the cost of living. Tuition increased from $350 per course in the 1999/2000 academic year to $495 per course in the 2009/10 academic year.

    asked by Cheri
  50. add maths

    Given that log2 3=h and log2 5=k, express log2 0.45 in terms of h and k.

    asked by mandy
  51. Calculus Help Please Urgent!!!

    Find the volume V of the solid obtained by rotating the region bounded by the given curves about the specified line. y = 5x^2, y = 5x, x ≥ 0; about the x-axis V = ??? Sketch the region

    asked by Top
  52. physics

    An engine manufacturer makes the following claims: The heat input per second of the engine is 90.0 kJ at 375 K. The heat output per second is 4.0 kJ at 225 K. Do you believe these claims?

    asked by sero
  53. Chemistry

    Having trouble with this question on my homework =/ 200mL of 0.5M H2SO4 is combined with 500mL of 0.1M NaHCO3. List the physical states of all products, give molarity of aqueous ions and grams of gases and solids. Thanks alot guys!! Any help is awesome

    asked by Greg
  54. reading

    how and when does Shakespeare use a specific conflict in Act 1 to introduce or develop the theme of forbidden love? Romeo tells Benvolio that he is in love with Rosaline, but that she does not return his feelings and has in fact sworn to live a life of

    asked by yasminb
  55. reading

    how and when does shakespeare use foreshadowing to introduce a revenge theme The combination of forced patience and pure rage is making my body tremble. I’ll leave here now, but Romeo’s prank, which seems so sweet to him now, will turn bitter to him

    asked by yasminb
  56. spanish

    I haven't had a chance to meet with my Spanish professor about my composition and I need to turn it in soon. It's basically just a short past narration (15 sentences) using only the preterite and imperfect. If someone could read through it and let me know

    asked by Kate
  57. math

    how can i plot values in a parabola graph if the values are fractions. it's my first time with this things so i don't understand

    asked by aj
  58. FLUID MECHANICS

    Air under standard conditions flows through a 5.0 mm-diameter drawn tubing with an average velocity of V = 55 m/s. Assume that the tube is smooth, the air is incompressible and no shear stress occur in the tube. Determine i. the pressure drop in 0.1 m

    asked by ANNA
  59. Chemistry

    How many moles of H2O are in 254 milligrams of water?

    asked by Emily
  60. Algebra

    A moving picture theater usually took in $220 an evening on ticket sales. The manager found out that by reducing the price of tickets by 5 cents, 200 more persons attended, and the box office receipts were $80 more an evening. How many persons attended

    asked by Laura
  61. Spanish

    1. ___ hermanas son ____. Question 7 options: Su, bonitas Sus, bonita Tu, bonitas Sus, bonitas is it C 2. Por las tardes, mis padres siempre _____ en el jardín (garden). Mi abuela está en su cuarto (room) porque ______ descansar mucho. Question 8

    asked by Amy
  62. business

    Within an organization, the first step in human resources planning is?

    asked by star
  63. Please help with Calc!

    Evaluate the indefinite integral. integral 2e^(2x)sin(e^2x) Note: Use an upper-case "C" for the constant of integration.

    asked by Josh
  64. Math

    1) Last year, Harjap spent a total of $11,348 on gasoline, oil, repairs and maintenance, and insurance. His travel log shows that he drove 14,488 km on business and 8329 km on personal use. What vehicle expense can Harjap report for the year? 2)Mr.

    asked by Amy
  65. Math

    A basket of goods and services representative of the CPI cost $2750 when the CPI stood at 118.3. What did the basket of goods cost 10 years earlier, when the CPI was at 93.1? What was the overall percent inflation experienced by consumers for the entire

    asked by Rick
  66. Math

    Caroline says to Jed, "If you insult me one more time, I am going to slap you!" Jed replies, "That's OK, Caroline. If I don't insult you, you will be able to slap me anyway." If p=you insult me one more time and q=I am going to slap you Explain briefly,

    asked by Lucas
  67. math

    Claire wants to determine how brightly to illuminate her stage. stage width (in metres) x stage length (in metres) x 0.14 = total watts for stage If her stage is 7.25 metros wide and 11.5 metres long, a) calculate the exact number of watts needid to

    asked by Lucas
  68. MGT211

    five solid shifting sloe proprietorship to partnership

    asked by ahsan
  69. it

    Assume you have a computer that contains 1GB of memory.It contains four memory slots. Two of the slots contain 512MB,memory modules.What memory chip(s) would you buy to increase the memory on the computer to 4GB? What is the maximum memory on the computer?

    asked by acap
  70. physics

    A 9.0 §Ù resistor and a 53.0 §Ù resistor are connected in parallel to a battery, and the current in the 9.0 §Ù resistor is found to be 1.41 A. Find the potential difference across the bat- tery.

    asked by Anonymous
  71. Criminal Justice - Ethics

    According to Kohlberg, which of the following can provide worthwhile ocasions for moral development by inviting us to reflect on the views of others? A. Role-taking opportunities B. Reading books about ethics C. Love and respect within the family D. Social

    asked by Pat
  72. Chemistry

    Im not exactly sure what how to solve this with the way my teacher asked this question. "For hydrogen atom transitions calculate E, v, and wavelength:" Ni= 1 li= 0 Mli= 0 Msi= -1/2 Nf= 2 Lf= 0 Mlf= 0 Msf= -1/2 E(kj)= ? v(Hz)= ? wavelength(m)= ?

    asked by Mary
  73. Chemistry

    How many grams of lithium fluoride must be added to 3.5 kg of water to make a solution with a molality of 2.0 molal?

    asked by Anonymous
  74. reading

    what is a conflict in literature? how and when does Shakespeare use a specific conflict in Act 1 to introduce or develop the theme of revenge? when Tybalt recognizes romeo?

    asked by yasminb
  75. reading

    how and when does Shakespeare use a specific conflict in Act 1 to introduce or develop the impulsive decision-making theme? Benvolio tells Romeo that the feast will be the perfect opportunity to compare Rosaline with the other beautiful women of Verona.

    asked by yasminb
  76. statistics

    It has been suggested that the rate of forgetting (coded as normal vs. fast) for word lists often used in psychological experiments may depend on the type of memory test employed, either free-recall or recognition. What is the best way to test this

    asked by Lisa
  77. mat117

    f(x) = 0, where f(x) = -5x2 + 8x + 9

    asked by lacrisa
  78. Science

    Some teachers explain that meiosis is actually mitosis happening twice. Is this a correct assumption?Why might teachers say this and is it a true statement? ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

    asked by Susan
  79. Trig

    Given sin θ = −1/2 and sec θ > 0, find the exact value of tan 2θ. Radical 3 Radical 3/2 Negative radical 3 Negative radical 3/2

    asked by Kiki
  80. Statistics

    Im using this equation to complete this question: So for this question, I want to determine how many people like Pepsi and how many people like Coca-Cola. Then I want to determine how many people like X over Y. For example, if 35 out of 50 people prefer

    asked by Nikki
  81. add maths

    calculate the value of log square root p p^2.

    asked by mandy
  82. math

    The terms of payment on an invoice for $2835.49 are 2/15, n/45. The balance owed after a payment within the discount period is $1135.49. What was the amount of the payment?

    asked by thomas
  83. add maths

    Given that x=a^m and y=a^n.Express log^a(3 square root x over ay^2) in terms of m and n.

    asked by mandy
  84. calculus help

    Find the volume V of the solid obtained by rotating the region bounded by the given curves about the specified line. x = 4(square root of (3y)), x = 0, y = 3; about the y-axis V=?????

    asked by Christine
  85. Math

    Two vehicles are moving at a velocity of 100km/hr and 60km/hr the magnitude along the road is 500km and the vehicle with a vehicle with a velocity of 100km/hr began the journey 2.5 hrs ealier.CALCULATE the distance the vehicle with 60km/hr travelled to

    asked by Robert
  86. Math

    Find y intercept for (-2,4)(6,4) then (0,6) and (8,6). It it possible

    asked by Mom
  87. physics

    Consider a rectangular swimming pool of depth 2.3 m with a width and length of 13 m. What is the force exerted by the water on one of the sidewalls of the pool?

    asked by Sarah
  88. physics

    Two inelastic balls of masses 2 and 3 kg are moving at the velocities 8 and 4 m/s. Find the increase of the internal energy if the first ball catches up the second one.

    asked by aslam
  89. Math

    two functions are defined as follows: f(x)=3/x+1 and g(x)=x-6 a) Write the equations of the vertical and horizonal asymptotes of f. b) Determine the coordinates of the points where f(x) = g(x) Thank you so much for huge help Is ti correct please? answer

    asked by Lucas
  90. math

    If an item is sold for $450 but thf the person who sold it wants $ r 75 what % is that person taki ng out of that $450?

    asked by celeste
  91. FLUID MECHANICS

    Air at 45°C is flowing steadily in a 25 cm-diameter horizontal pipe made of plastic at a rate of 900 l/min. Determine the head loss, and the required pumping power input for flow over a 175m-long section of the pipe.

    asked by ANNA
  92. statistics

    A researcher was interested in assessing the effectiveness of the Statistics Diet as compared to a regular low calorie diet on weight loss. In the study, obese participants were randomly assigned to one of two groups: (1) the Statistics Diet, which

    asked by Matt
  93. Science

    Can someone help me answer some questions. Homes near warm climate get a) colder winters b)warmer winters c) cold and warm winters d) none of the above When there is moisture in the air from a hot shower, the water is in which form: a) solid b) liquid c)

    asked by Anna
  94. statistics

    A researcher was interested in assessing the effectiveness of the Statistics Diet as compared to a regular low calorie diet on weight loss. In the study, obese participants were randomly assigned to one of two groups: (1) the Statistics Diet, which

    asked by Matt
  95. accounts

    People from all over the world moving from sole proprietorship to partnerships due to the numerous benefits they get. You are required to tell why the focus is shifting from sole proprietorship to partnership? Explain your answer with the help of at least

    asked by fatima
  96. Pre Calculus

    Solve the inequality sinx>square root x.

    asked by Hanu
  97. Pre Calculus

    Determine an approximate solution to the inequality 2^x=x^2.

    asked by Hanu
  98. Chemistry

    Please help me solve this empirical formula.Im so confused C=58.5% H=4.1% N=11.4% and O=26.0% Thank you so much

    asked by Roger
  99. reading

    two elements in literary settings what are they?

    asked by yasminb
  100. Calc 2

    a. Integral (x^2)/(sqrt(1+(x^2))) Would I separate these two into 2 separate integrals? Like: Integral of x^2 and the other integral of 1/sqrt(1+(x^2)) b. Integral (x^7)/(ln(x^4))dx Do I use integration by parts for this? I put u= lnx du = 1/x dv = x^7 v =

    asked by Bae
  101. Science

    I need help answering the questions below : Homes near warm climate get a) colder winters b)warmer winters c) cold and warm winters d) none of the above When there is moisture in the air from a hot shower, the water is in which form: a) solid b) liquid c)

    asked by Annadona
  102. statistics

    17. A newspaper article reported that the typical American family spent an average of $75 for Easter candy last year. A sample of N=16 families this year reported spending a mean of $85, with a standard deviation of $20. What hypothesis testing technique

    asked by Matt
  103. reading

    what is foil? how does shakespeare use character foils to introduce or develop the theme of revenge? what is situational irony? how does shakespeare use situation irony in act 1 to introduce or develop the forbidden love theme

    asked by yasminb
  104. mat117

    f(x) = 0, where f(x) = -9x2 + 7x + 2.

    asked by lacrisa
  105. science

    Homes near warm climate get a) colder winters b)warmer winters c) cold and warm winters d) none of the above When there is moisture in the air from a hot shower, the water is in which form: a) solid b) liquid c) gas d) all of the above

    asked by Annadona
  106. english

    why am i black? please explain that to me.

    asked by tom
  107. Trig

    Given sin x = 5/13 and 0 < x < pi/2 find the value of sin(π − x). 12/13 5/13 -12/13 -5/13

    asked by Kiki
  108. math

    5x-3y=3 2x-4y=-10 3x+y=(?) a. -30 b. -13 c. -7 d. 7 e. 13 please answer and explain

    asked by thomas
  109. math

    Simply the unknowns variables 5(2-c)=10(2c-4)-6(3c+1) 1.25y-20.5=0.5y-11.5 (3) 7p-3q=23(3)

    asked by Mike
  110. math

    Which of the following is equal to (9^-2)+(9^-1)/(81^0)(9^-2) a. 0 b. 1/10 c. 1/9 d. 3/2 e. 10 please answer and explain

    asked by thomas
  111. Math

    Determine the slope and y-intercepts 2x = 3y + 4 8x − 2y − 3 = 0

    asked by Di
  112. add maths

    Find the value of logb square root b - loga(1/a)

    asked by mandy
  113. calculus help

    Find the volume V of the solid obtained by rotating the region bounded by the given curves about the specified line. y = 4 − 1/2x, y = 0, x = 0, x = 1; about the x-axis V = ????

    asked by Anonymous
  114. statistics

    A researcher was interested in assessing the effectiveness of the Statistics Diet as compared to a regular low calorie diet on weight loss. In the study, obese participants were randomly assigned to one of two groups: (1) the Statistics Diet, which

    asked by Matt
  115. Accounting Questions

    NOTE: I NEED HELP WITH THESE 10 QUESTIONS,IT IS AN EMERGENCY PLEASE! Use the following information to answer questions 1-4. The Bayside Company uses the LIFO cost flow method to value inventory. In the current year, profit at Bayside is running unusually

    asked by Mia
  116. physics

    What is the magnitude of the acceleration of anelectron in a 2200 N/C electric field?I want the solution to this problem.

    asked by javen kenso
  117. FLUID MECHANICS

    Water at temperature of 15°C flows through a pipe of diameter D = 2 cm and into a glass. Determine i. The minimum time taken to fill in a 0.5 L glass full with water if the flow in the pipe is to be laminar. ii. The maximum time taken to fill the glass if

    asked by ANNA
  118. math

    What is the slope for the following set of data? x 2 4 6 8 y 1 -2 -5 -8

    asked by steve
  119. Math word problem

    A dealer bought some grapefruits for $1.04. After throwing away 4 bad ones, he sold the other ones at 6 cents apiece more than he had paid for them and made a profit of $0.22. How many did he buy?

    asked by Erica
  120. math

    Is the following a linear function? x -2 0 2 4 y -4 0 4 8 My answer is yes.

    asked by steve
  121. Chemistry

    Fuel pellets are replaced in a nuclear reactor when the U-238 content drops to A. 4% B. 6% C. 50% d. 94%

    asked by Hannah
  122. math

    1)5 [19+ (5^2-16) ^2] ^2 2)(7m^3-m-6m^2+10)-(5m^3-9+3m-2m^2) 3) 3 (a-2)(4a+1)-5(2a+3)(a-7) 4)6a^2b/-2ab^2 5) 120(1+i) ^2+180(1+i) ^3 /360(1+i)

    asked by Rick