Most popular questions and responses by Manny
  1. Please help me with this question.!!!!!!

    Ms. Alison drew a box-and-whisker plot to represent her students’ scores on a mid-term test. box-and-whisker plot Josh received 72 on the test. Describe how his score compared to those of his classmates. (1 point) About 25% scored higher; about 75%

    asked on June 10, 2014
  2. Please help me with this question.!!!!!!

    A recording artist released a compilation of songs on the Internet. The scatter plot below shows the number of downloads for her album, in the thousands, over the course of nine days. scatter plot If this trend continues, approximately how many thousands

    asked on June 11, 2014
  3. Math

    Yolanda buys two types of flowering plants. She buys 36 geraniums and 63 marigolds she wants to plant an eeach row will contain only one type of flowering each row will contain only one type of flowering plant Yolanda uses all the plants she bought in her

    asked on February 15, 2017
  4. chem

    Hi the following comes from my first homework assignment in AP Chemistry. I am totally lost on this question and don't know where to start. Thanks a lot in advance!!!!! A 0.1247 g sample of ascorbic acid, Vitamin C, was burned in a carbon-hydrogen

    asked on September 26, 2007
  5. Physics

    A child goes down a playground slide that is inclined at an angle of 24.5° below the horizontal. Find the acceleration of the child given that the coefficient of kinetic friction between the child and the slide is 0.305.

    asked on October 5, 2010
  6. physics

    a dog runs back and forth between its two owners, who are walking toward one another. the dog starts running when the owners are 10 m apart. if the dog runs with a speed of 3 m/s and the owners each walk with a speed of 1.3 m/s how far has the dog traveled

    asked on August 26, 2007
  7. science

    When salt (NaCI) is added to water, it disassociates into Na and Cl-ions. Which of the following types of chemical bond is present in a salt molecule? A. Covalent bond B. Ionic bond C. Hydrogen bond D. Disulfide bond i think its B An example of active

    asked on October 25, 2015
  8. chem

    Are these correct? Rank the following species in order of increasing acidity. Explain your reasons of ordering them as you do. NH3 ,H2SO4, CH3OH, CH3COOH CH3COOH > H2SO4> CH3OH >NH3 Rank the following species in order of increasing basicity. Explain your

    asked on August 20, 2007
  9. Math

    The random variable X has the following density function: f(x) = { x^2 if 0 < x < 3 { 0 otherwise a) Find the distribution function F(x) of X b) Draw the distribution function c) Calculate the following probabilities: P(X > 1.5) = P(1/2 ≤ X < 3/2) = P(-2

    asked on March 31, 2019
  10. math

    A student says that the solution of 375 = x – 28 is 347. Explain the student’s error and find the correct answer

    asked on April 12, 2013
  11. Astronomy

    Calculate the ratio of the escape velocities from the moon and Earth. Calculate the ratio of the escape velocities from the moon and Earth In order to escape the gravitaional pull exerted by a central body on an orbiting object, it must must achieve a

    asked on April 10, 2007
  12. Math

    A 5-pound bag of potatoes costs$3.40 what is the cost per pound

    asked on December 30, 2016
  13. Statistics

    Jane Blaylock joined the Ladies Professional Golf Association (LPGA) in 1969 and by 1972 had become the leading money winner on the tour. During the Bluegrass Invitational Tournament, she was disqualified for an alleged rules infraction. The LPGA appointed

    asked on November 21, 2018
  14. math

    Suppose a code consist of two letters followed by a digit. Find the number of (a) Codes (b) Codes with distinct letters (c) Codes with the same letters

    asked on September 4, 2007
  15. Calc 2

    Compute the total area of the (infinitely many) triangles in the Figure In the image, the height of all the triangles is 6/7. The x-values for the bases of the triangles from left to right are as follows: 27/64 , 9/16 , 3/4 , 1 Using the formula for the

    asked on March 30, 2018
  16. Math

    In the last basketball game, Kevin scored 2 less than a third of his team's points. Part A: Let n represent the number of points Kevin's team scored. Write an expression for the number of points Kevin scored. Part B: Kevin scored 14 points. How many points

    asked on February 10, 2017
  17. physics

    A child on a sled (total mass 41 kg) slides down a hill inclined at an angle θ = 22° at a constant speed 3.5 m/s. (a) How long does it take the child to travel 40 meters down the slope? (b) What is the frictional force on the sled? (c) What is the

    asked on September 18, 2015
  18. english

    “There is little reason to fear that women will acquire too much courage or fortitude, for their apparent inferiority…” What choice most closely defines the underlined word?

    asked on April 27, 2016
  19. Physics-HELP

    An airplane is traveling 775 km/h in a direction 42.5° west of north (Figure 3-31). (a) Find the components of the velocity vector in the northerly and westerly directions. northerly km/h westerly km/h (b) How far north and how far west has the plane

    asked on September 20, 2015
  20. Calculus

    Find the point on the line 6x + y = 9 that is closest to the point (-3,1). Solution: We need to minimize the function d =

    asked on December 9, 2009
  21. chem

    Hi, I need help with this problem--- I have no idea how to go about it _______________________________________________________________ An average adult breathes about 8.5 x 10^3 L of air per day. The concentration of lead in higly polluted urban air is 7.0

    asked on September 4, 2007
  22. chem

    Hello, I need help solving this problem on intermolecular dispersion forces. Can you explain how I go about finding the answer? Which member of the following has the stronger intermolecular dispersion forces? a. CO CO2 neither of these b. CH3CH2CH2CH2Br

    asked on August 23, 2007
  23. physics

    A bicycle chain is wrapped around a rear sprocket (r = 0.039m) and a front sprocket (r = 0.10m). The chain moves with a speed of 1.4m/s around the sprockets, while the bike moves at a constant velocity. Find the magnitude of the acceleration of a chainlink

    asked on August 18, 2007
  24. math

    During a sale, a store offered a 40% discount on a particular camera that was originally priced at $450. After the sale, the discounted price of the camera was increased by 40%. What was the price of the camera after this increase?

    asked on November 29, 2015

    A bicyclist can coast down a 5° hill at a constant 6.0 km/h. Assume the force of friction (air resistance) is proportional to the speed v so that Ffr = cv. (a) Calculate the value of the constant c. (b) What is the average force that must be applied in

    asked on October 22, 2015
  26. chemistry

    -2.60- Hi here is a question I am having trouble with. I need help only on part c. ____________________________________________________________________________________________________________________________________________________________ Each time you

    asked on September 16, 2007
  27. finance management

    Explain how efficient inventory management affects the liquidity and profitability of the firm.

    asked on September 13, 2007
  28. Math

    how do i solve for b, when: (2pi/b)=8pi

    asked on March 2, 2016
  29. chem- molar weight

    I worked this problem, I would like to know if I did it correctly, I think I missed something, I'm not sure..... When a 20.0 gram sample of an unknown compound is dissolved in 500 grams of benzene, the freezing pointof the resulting solution was observed

    asked on September 7, 2007
  30. Economics

    n auto-service establishment has estimated its monthly cost function as follows: TC = 6000 + 10 Q where Q is the number of cars it services each months and TC represents its total cost. The firm is targeting 35,000 net monthly profit servicing 2000 cars.

    asked on December 9, 2012
  31. Chem

    When crude caffeine is isolated from tea, why does it often have a green tinge?

    asked on September 18, 2007
  32. math

    One number is four times another. the greater number is x. write an ecpression for the lesser number.

    asked on September 25, 2012
  33. art/science

    here is a hypothetical question I am an art teacher and craft writer. I need to know if fabric that has been rusted (by choice), or stained from coming in contact with rust, will continue to rust and destroy the fabric. If yes, is it possible to neutralize

    asked on August 17, 2007
  34. math

    Which of the following is the number of milliliters in 2 gallons? (Note: 1 gallon = 4.4 liters; 1 liter= 1,000 milliliters) A. 440 B. 880 C. 4,400 D. 8,800 i think its D The hypotenuse (side C) of a triangle is 13 inches long. Which of the following pairs

    asked on October 25, 2015
  35. Astronomy

    Given that the mass of the Milky Way galaxy is 10^11 times that of the Sun and that the sun is 2.6x10^20 meters from its center, what is the Sun's orbital speed around the center of the galaxy? How long does it take the Sun to orbit the Milky Way? (In this

    asked on April 10, 2007
  36. Economics

    Ben deposits $5000 now into an account that earns 7.5 percent interest compounded annually. He then deposits $1000 per year at the end of the first and second years. How much will the account contain 10 years after the initial deposit?

    asked on February 21, 2013
  37. science

    Plant~Deer~Tiger The first step in the energy chain that created the bonds of proteins in the tiger's muscle cells in the food chain shown above is the A. deer the tiger ate. B. plant the deer ate. C. photons the sun made. D. carbohydrates the plant made.

    asked on October 25, 2015
  38. Math

    Find the point on the line 6x + y = 9 that is closest to the point (-3,1). Solution: We need to minimize the function d =

    asked on December 9, 2009
  39. physics

    1:Negative clipping of an output signal occurs when the A. output impedance is too high. B. input impedance is too high. C. input amplitude is too high. D. power supply voltage is too high. 2: Which of the following is essential for the operation of an

    asked on August 31, 2007
  40. help with math

    Which would represent proof of the Pythagorean Theorem? A. Right triangle with legs of 36 and 9, as well as the hypotenuse as 64. B. Right triangle with legs of 144 and 25, as well as the hypotenuse as 169. Is it B? I don't know...

    asked on December 1, 2016

    Which of the following tissues would send a message to the brain indicating that someone has touched something hot? A. Epithelial tissue B. Nervous tissue C. Muscle tissue D. Connective tissue i think its B Which of the following describes the

    asked on October 25, 2015
  42. Math

    square root of (1-cosx/1+cosx) = cscx - cotx prove the identity

    asked on February 11, 2014
  43. Biochem

    You wish to measure the ∆G°' for the hydrolysis of ATP: ATP --->ADP + Pi But the equilibrium for the hydrolysis lies so far toward products that analysis of the ATP concentration at equilibrium is neither practical or accurate. However, you have the

    asked on September 14, 2009
  44. english

    Hi, I'm looking for the following poem. I need a version that has it divided into three parts. I couldn't find it online. If anybody could help that would be great!

    asked on September 15, 2007
  45. Help Math

    Duncan wants to make an aquarium. The aquariums are available in two shapes, spherical (S) or cubical ©. He can choose either goldfish (G) or fantails (F) to keep in his aquarium. Which list shows the different combinations of aquariums and fish from

    asked on January 28, 2016
  46. algebra

    Daniel can plant an acre of corn in 6 hours. Working with Amanda, they can plant an acre of corn in 2 hours. How long would it take in hours for Amanda to plant an acre of corn by herself?

    asked on June 22, 2012
  47. physics II

    There is a pulse returns 3.0x10^-4 seconds after it is sent out, having been reflected by an object. What is needed is the distance between the radar antenna and the object? (c = 3x10^8 m/s)

    asked on August 1, 2010
  48. trig

    Find two standard position primary angles in radians by solving for the unknown. "Primary angles" are those angles which exist between 0 and 2pi. As usual, use exact values in your calculations. cotx + 1 = 0

    asked on April 28, 2008


    asked on June 15, 2006
  50. Physics-HELP

    An Olympic long jumper is capable of jumping 7.5 m. Assume that his horizontal speed is 8.8 m/s as he leaves the ground. How long is he in the air? How high does he go? Assume that he lands standing upright, that is, the same way he left the ground.

    asked on September 20, 2015
  51. chemistry

    Can somebody point out the step i have to take to solve this problem. It would be much appreciated. Thanks a lot!!!! _____________________________________________________________________________________________________________________ Asprin, C9H8O4, is

    asked on September 16, 2007
  52. chem

    Hers's a question im not sure how to do Write a mechanism for the acid-catalyzed transesterification reaction of ethyl acetate with 1-butanol, which gives butyl acetate. Thank you soo much!!!!!!!!!!!!!!!!!!!!!!

    asked on August 25, 2007
  53. A fun one-math

    i am a four -digit number with no two digits the same. my ones digit is twice my thousands digit and one less than my tens digit. my hundreds digit is the difference between my tens digit and my thousands digit. my thousands digit is an odd number less

    asked on August 20, 2007
  54. algebra

    1.)correct 2.)wrong---> the first term is wrong 4(3a^2)^2 = 36a^4 3.) not sure on this one 4.) wrong---> - square root of six is not a solution Hope this Helps! 1)find p(-3)if p(x)=4x^3-5x^2+7x-10 =-184 2)If r(x)=4x^2-3x+7,find r(3a^2) =12a^4-9a^2+7

    asked on August 16, 2007
  55. Calculus 2

    Convert r = 1 / (6cos(θ)+8sin(θ)) to an equation in rectangular coordinates (i.e., in terms of x and y). A similar example I found, where r = 1 / (cos (θ) − sin (θ)), found the rectangular equation to be y = x - 1. How would this answer change for my

    asked on May 10, 2018
  56. math

    Barry's Blueberry Patch Come and pick your own blueberries for $3.00/lb Purchase prepackaged blueberries for $3.50/lb A family picks 1.7 lb of blueberries and purchases an additional 0.5 lb of prepackaged blueberries. Using the pricing displayed above,

    asked on October 25, 2015
  57. physics

    A swimmer, capable of swimming at a speed of 1.3 m/s in still water (i.e., the swimmer can swim with a speed of 1.3 m/s relative to the water), starts to swim directly across a 2.2-km-wide river. However, the current is 0.91 m/s, and it carries the swimmer

    asked on September 18, 2012
  58. business

    1. The employees of Abs “R” Us, which includes 12 fitness parlors in and around the metro area, feel they can improve the performance of the company. They decide to pool their resources to purchase the company. This would be called a _______ buyout. A.

    asked on March 7, 2012
  59. physics

    An inquisitive physics student, wishing to combine pleasure with scientific inquiry, rides on a rollercoaster sitting on a bathroom scale. (Do not try this yourself on a rollercoaster that forbids loose heavy packages.) The bottom of the seat in the

    asked on September 19, 2010
  60. English

    I would like to see what other modifications (what should I include, remove, make more presentable, recommend a particular font style, etc) I need to make on my resume per your opinions. Any help is greatly appreciated. I removed my personal information

    asked on January 14, 2008
  61. chemistry

    Why is caffeine only soluble in water that is strongly acidic? Is that true? I think the solubility of caffeine is about 180 mg/L in water @ 100 Celsius. I guess it depends upon your definition of solubility. At any rate, look at the structure of caffeine.

    asked on August 18, 2007
  62. science

    In pea plants, the allele for tall (T) is dominant to the allele for short (t). Which of the following is the percent of offspring that will be tall if a heterozygous plant (Tt) is crossed with a homozygous tall plant? A. 100% B. 75% C. 50% D. 25% i think

    asked on October 25, 2015
  63. math

    17. Which of the following is the correct simplified fractional representation of 0.03030? A. 303/1,000 B. 303/10,000 C. 3,030/1,000 D. 3,030/10,000 i think its B

    asked on October 25, 2015
  64. Calc

    A rectangle is inscribed with its base on the x-axis and its upper corners on the parabola y= 1-x^2. What are the dimensions of such a rectangle with the greatest possible area?

    asked on April 5, 2009
  65. English/Grammar (please... extremely important)

    Dear _______________: I attempted to contact ____________ to call out and the line was occupied. My phone service was interrupted later on that day, and therefore. I was unable to speak to a member of management regarding my situation. Without a valid

    asked on February 4, 2009
  66. math-calculus

    Hi i've been struggling over this question for a while. Can anybody help me with this? A body's velocity at the time t sec is v = 2t^3 - 9t^2 +12t - 5 m/sec. Find the body's speed each time the acceleration is zero. ________________________________ What i

    asked on October 1, 2007
  67. science

    Scientist call a theory that unites many ideas in a simple way "beautiful". Are unity and simplicity among the criteria of beauty outside of science?

    asked on September 4, 2007
  68. science

    I have no idea on this one A man put a goldfish into recently boiled water that had been cooled quickly, and it died. Explain what happened to the goldfish. Thanks! The dissolved oxygen in the water was driven out when the water was boiled. The fish died

    asked on August 16, 2007
  69. physics

    if an object is pushed along a rough horizontal surface and moves at a constant velocity, then...

    asked on December 30, 2017
  70. Calculus

    Find the point on the line 6x + y = 9 that is closest to the point (-3,1). Solution: We need to minimize the function d = sqrt((x − (−3))^2 + (y − 1)^2) = sqrt((x + 3)^2 + (y − 1) ^2 ) and, since the point (x, y) lies on the line 6x + y = 9, we can

    asked on December 9, 2009
  71. Ms, Sue please respond

    I had posted a serious letter of a real situation that happenned. I sm trying to write this letter for that reason. I am not sure where it will seem like an excuse if i bring the forms. please suggest a better way of writing the letter.

    asked on February 4, 2009
  72. trig

    Find two standard position primary angles in radians by solving for the unknown. "Primary angles" are those angles which exist between 0 and 2pi. As usual, use exact values in your calculations. cosx - 2cos^2x = 0

    asked on April 28, 2008
  73. chemistry

    what is the importance of obtaining the percent yield of a product. for instance i had to do steam distillation to obtain eugenol benzoate. once i calculate the % yield what could be the importance apart from that's the amount of product obtained

    asked on October 7, 2007
  74. spanish

    what does "los famas" mean in spanish i looked it up and i get fame for "fama" but it does not make sense in this particular context Context: "Cuando los famas salen de viaje..."

    asked on October 2, 2007
  75. math- mean value theorem

    Hi I am having some trouble with these few quetions I would appreciate some help so that I can understand them better. 1) What, if anything, does the mean value theorem guarantee for the given function on this interval? a) f(x) = x^2 - 2x + 5 on [1,4] --I

    asked on September 7, 2007
  76. math

    two 22.5 degree cast iron bend are offset by 3 feet 5 inches, so the diagonal that joins them must have one hub. you need to measure a 10 foot length of 3 inch pipe and cut it for the diagonal. if you measure from the extreme end of the hub, at what

    asked on August 23, 2007
  77. electric engineering - bobpursley

    Hi bob: I have a follow up question fo my previous post under heading electrical engineering If you could help me that would be great! :-) see the other post which briefly explains the drawings here:

    asked on August 21, 2007
  78. physics

    hey guys i'm stuck on this one question and i need some help!! thanks, appreciate it..... one gallon of paint (volume=3.786 X 10^-3 m^3) covers an area of 25.0 m^2. what is the thickness of the paint on the wall?? could anybody please help guide me through

    asked on August 19, 2007
  79. chemistry

    The percent composition of iron in a sample of steel can be determined by dissolving a sample of steel in concentrated acid. The resulting solution is then titrated with a permanganate solution. When all of the iron has reacted with the permanganate, the

    asked on August 19, 2007
  80. physics

    How do i go about this question? Suppose a car is traveling at 20.0m/s, and the driver sees a traffic light turn red, After 0.530s has elapsed (the reaction time), the driver applies the brakes, and the car accelerates at 7.00m/s2. What is the stopping

    asked on August 16, 2007
  81. Economics-please

    Getting back in time, when Nancy wa just about to open her account, and assuming she could choose among credit sources that offered differednt monthly balance determinations, and assunming further that Nancy would increase her outstanding balance over

    asked on June 15, 2006
  82. math

    what is the expression for 8 less than the product of 5 and -4

    asked on November 8, 2016
  83. Social studies

    Nation states arguing over immigration polices?

    asked on August 22, 2016
  84. math

    there are 4 quarters in a dollar. Steven earned 3 dollars last month. How many quarters did he earn?

    asked on November 2, 2014
  85. paramount

    Can you help me with a short interpretation for this poem? "A Voice" by Pat Mora.

    asked on March 12, 2013
  86. PreCalculus

    I'm trying to find the x-intercepts of a polynomial function = 4x^4-3x^3-6x^2+2x+6. I don't want anyone to solve it, could someone please just tell me how to start factoring this so I can find the x-intercepts, I'm lost.

    asked on November 15, 2011
  87. physics

    a snowboarder moves down a slope for which theta= 22 degrees. the coefficient of kinetic friction between the board and the snow is 0.21 and her velocity is a constant 8.3 m/s. what will her speed 100 meters past the end of the slope? how far will she

    asked on November 24, 2010
  88. physics

    SOMEBODY ANSWER THIS PLEASE, Two people pull as hard as they can on ropes attached to a 170 kg boat. If they pull in the same direction, the boat has an acceleration of 1.59 m/s2 to the right. If they pull in opposite directions, the boat has an

    asked on September 19, 2010
  89. math calc

    The equation of the tangent line to f(x) =sqrt{x} at x = 25 can be written in the form y = mx+b where m =.1 b =? i don't know how to find the value of b

    asked on March 27, 2009
  90. AP Physics

    Could you please explain to me these problems, I don't understand them. Do 100 J of work in 50 s and your power output is? A bow is drawn so that it has 40 J of potential energy. When fired, the arrow will ideally have a kinetic energy of ? A diver who

    asked on October 13, 2007
  91. chem- balancing equations

    May i pls have some help balancing this equation Al + NH4ClO4 ---> Al2O3 + AlCl3 + NO + H20 Thanks, manny

    asked on September 16, 2007
  92. Physics

    fire places are usually built so has to be very shallow with high backs. often they have structures to hold the burning logs apart. in a wood stove, the fire is inside a box that sits in the middle of the room. describe the heating mechanisms used by each.

    asked on September 16, 2007
  93. English

    Hi, I am reading the following two books for my AP English class; "All the king's men" -- Robert Penn Warren "Their eyes were watching god" -- Zora Neale Hurston

    asked on September 5, 2007
  94. math

    a 10 inch flanged cast- iron spool connects two 90 degree elbows. the elbow center lines are separated by a distance of 6 feet. each joint incorporates a 5/16 inch gasket. what would be the length of the spools face to face dimension?

    asked on August 25, 2007
  95. math

    The probability that a person has immunity to a particular disease is 0.3. Find the mean and standard deviation for the random variable x, the number of people who have immunity in samples of size 28. This is a binomial distribution. mean= 28*.3 standard

    asked on August 18, 2007
  96. Math

    The area of a certain rectangle is 288 yd2 the perimeter is 68 yd. if you double the length and the width what will be the area and perimeter of a new rectangle?

    asked on March 7, 2013
  97. Engineering Econonmy

    You decide to open an IRS-approved retirement account at your local brokerage firm. Your best estimate is that it will earn 9 percent. At the end of each year for the next 25 years, you will deposit $4000 per year into the account (25 total deposits). 3

    asked on February 23, 2013
  98. algebra

    Find the number of ways the top four can finish in a race of nine people.

    asked on June 22, 2012
  99. physics II

    sUPPOSE YOU HAVE A square coil and a triangular coil each have sides of length L. The triangular coil has twice as many turns as the square coil. If a the same current is sent through each coil, when the coils are placed in the same uniform magnetic field

    asked on August 1, 2010
  100. math./algebra

    Simplify. 3 square root2(5square root 2 - 6 square root 12)

    asked on April 29, 2009


  1. 1
  2. 2