Most popular questions and responses by tay
  1. science

    Which of the following is something you should do after severe weather occurs? - clean up flood waters *** - stay away from windows - create a family safety plan - invite friends to see the damage

    asked on April 13, 2016
  2. Physics

    The displacement of a standing wave on a string is given by D=3.6sin(.54x)cos(37t), where x and D are in centimeters and t is in seconds. What is the distance in cm between the nodes in centimeters? Give the amplitude of each of the component waves,

    asked on November 17, 2009
  3. Math

    Use Stokes' Theorem to evaluate S curl F · dS. F(x, y, z) = 2y cos z i + ex sin z j + xey k, S is the hemisphere x2 + y2 + z2 = 49, z ≥ 0, oriented upward.

    asked on November 22, 2016
  4. math

    a particle moves along the curve y= sqrt 1+x cubed. As it reaches the point (2,3) the y-corrdinate is increasing at a rate of 4cm/s. How fast is the x-coordinate of the point changing at that instant?

    asked on January 17, 2012
  5. Math

    A science class has 3 girls and 7 boys in the seventh grade and 5 girls and 5 boysin the eighth grade. The teacher randomly selects a seventh grader and an eighth grader from the class for a competition. What is the probability that the students she

    asked on December 12, 2016
  6. Math

    A bank offers two interest account plans. Plan A gives you 6% interest compound annually. Plan B gives you 13% annual simple interest. You plan to invest $2,000 for the next 4 years. Which account earns you the most interest (in dollars) after 4 years? How

    asked on June 10, 2015
  7. Math

    Leila's bookshelf has 4 shelves. Each shelf has 9 books. Write a multiplication sentence to tell about the books. Explain what each number in the multiplication sentence means.

    asked on December 2, 2015
  8. Statistics

    the heights of young women are approximately Normal with 65 inches and standard deviation 2.5 inches. The heights of men in the same age group have mean 70 inches standard deviation 2 inches. What percentage of women are taller than a man of average (mean)

    asked on October 21, 2015
  9. social studies

    What was the effect of discovering oil at spindletop?(1Point) A The stast stufferes economically because the supply wasnt as much as people expected B The supply at spindletop was not enough to economicallyy support the exploration of nearby sources for

    asked on September 26, 2017
  10. Calculus

    For the following demand equation compute the elasticity of demand and determine whether the demand is elastic, unitary, or inelastic at the indicated price. (Round your answer to three decimal places.) x + (1/9)p - 27 =0 ; p=23

    asked on March 11, 2013
  11. Chemistry

    if 130 g of KNO3 are added to 100 g of water at 40 degrees Celsius.How many grams do not dissolve?

    asked on April 13, 2011
  12. AP US History

    I am writing an APUSH DBQ and I have what I think is a pretty winning thesis but I am having problems coming up with a good, interesting opening sentence. I figure once I have the first paragraph figured out the rest will flow rather easily. I also need to

    asked on October 22, 2011
  13. Math

    Juan's company spent $2350 on an event. They spent about $1500 on food and about $900 on entertainment. What could the actual cost of the food and entertainment be?

    asked on November 5, 2015
  14. algebra

    You have fifty feet of fencing to use to create a new pen for your dog. Describe three differently-shaped pens you could create.

    asked on May 13, 2019

    A plane is flying due South (270º) at 474.8 km/h. A wind blows from West to East (0°) at 46 km/h. Find the direction of the plane's travel. Report your answer in degrees from 0° as a reference.

    asked on October 26, 2014
  16. Algebra

    A whole number is added to a number with two didgets after the decimal point. To make sure the answer is reasonable, how many didgets should the sum have after the decimal point ? A - none B - 1 C- 2 D- infinitely many

    asked on September 11, 2015
  17. chemistry

    How many moles of O are needed to combine with 0.223 mole of C to form the following compounds? CO CO2

    asked on September 15, 2011
  18. Math

    A cashier has 25 coins consisting of nickels, dimes, and quarters with a value of $4.10. If the number of dimes is 1 more than twice the number of nickels, how many of each type of coin does he have?

    asked on April 30, 2017
  19. Math

    A theater has tickets for $6 for adults, $3.50 for students, and $2.50 for pre-school children. A total of 238 tickets were sold for one showing with a total revenue of $1142. If the number of adult tickets sold was 10 more than twice the number of student

    asked on April 30, 2017
  20. MATH

    Explain why the digits in a place value system with base, b, are 0,1,... b-1 and why no digits for numbers greater than b-1 are needed

    asked on September 12, 2014
  21. math

    A particular model of walkie-talkie can broadcast in a circular area. The radius of the broadcast area is 10,000 feet. Find the area of this circle to the nearest square foot. Use 3.14 for pi.

    asked on March 13, 2017
  22. chemistry

    Glycerin, C3H8O3, is a nonvolatile liquid. What is the vapor pressure of a solution made by adding 164 g of glycerin to 325 mL of H2O at 39.8°C? The vapor pressure of pure water at 39.8°C is 54.74 torr and its density is 0.992 g/cm3.

    asked on February 12, 2011
  23. physics

    A solid block of mass m2 = 1.0 $kg$, at rest on a horizontal frictionless surface, is connected to a relaxed spring (with spring constant k = 260 N/m whose other end is fixed. Another solid block of mass m1 = 2.4 kg and speed v1 = 3.3 m/s collides with the

    asked on March 21, 2014
  24. Probability

    There are 9 marbles if 3 different colors where 2 marbles are selected at random without replacement and the probability is 1/6

    asked on May 5, 2015
  25. english

    In " At the Tourist Center in Boston," the speakers tone can best be identified as?

    asked on September 6, 2013
  26. Math

    For the following demand equation compute the elasticity of demand and determine whether the demand is elastic, unitary, or inelastic at the indicated price. (Round your answer to three decimal places.) x + (1/9)p - 27 =0 ; p=23

    asked on March 10, 2013
  27. chemistry

    Which would produce greater number of moles of product: a certain amount of hydrogen gas reacting with oxygen gas to make water, or the same amount of hydrogen gas reacting with nitrogen gas to make ammonia? Why?

    asked on April 11, 2010
  28. english

    In " At the Tourist Center in Boston," the speakers tone can best be identified as?

    asked on September 6, 2013
  29. college chem

    How many moles of O are needed to combine with 0.223 mole of C to form the following compounds? CO CO2

    asked on September 15, 2011
  30. physics

    A vector representing 140 N is oriented at 42◦ with the horizontal. What is the magnitude of its horizontal component?

    asked on October 10, 2011
  31. physics

    A helicopter is rising at 4.7 m/s when a bag is dropped from it. (Assume that the positive direction is upward.) (a) After 2.0 s, what is the bag's velocity? (b) How far has the bag fallen? (c) How far below the helicopter is the bag?

    asked on October 26, 2009
  32. Texas State History

    Plzzz Help!!!!! If you answer plz be right!!!! The Caddos were an American Indian group in Texas that practiced agriculture and built permanent houses. What can be inferred about the group? (1point) A it created large populations . Bit formed a small and

    asked on October 2, 2017
  33. English

    I was supposed to make a connection between the Adichie Ted talk and the benefit of reading through black spruce. I have read this paragraph many times but I am not sure if it will make sense to others. Adichie uses different stories to share the core

    asked on April 10, 2019
  34. algebra 2

    You and your friend are both knitting scarves for charity. You knit 8 rows each minute and already have knitted 10 rows.Your friend knits 5 rows each minute and has already knitted 19 rows. When will you both have knitted the same number of rows?

    asked on May 18, 2012
  35. trig

    what is the angle of elevation of a 15 foot ladder leaning 12 feet up a building?

    asked on October 3, 2014
  36. math

    Adrian has $12,000 invested in a savings account which pays 5%, a time deposit paying 7% and a bond that pays 10%. He has $1000 less invested in the bond than in his savings account, and he earned $860 in annual interest. How much money is in each account?

    asked on April 30, 2017
  37. college algebra

    If there are 400 cubic centimeters of a chemical in 1 liter of solution (1000 cc=1 liter), how many cubic centimeters of water must be added to dilute it to a 25% solution?

    asked on October 3, 2017

    which of the following factors most contributed to the flourishing of great civilization in Africa between 400-1600 a) the spread of Christianity to sub- Saharan nations b)extensive trade with north Africa, Arabic, and Portuguese trading partners c) the

    asked on September 18, 2015
  39. math

    what is tan(A-B) if SinA=1/2, cosA>0, tanB=3/4 and sinB

    asked on April 13, 2014
  40. chemistry

    Pressure cooker is 1.3atm what is the temperature of water that boils

    asked on October 25, 2011
  41. chemistry

    What does the statement" The properties of salt are different from the properties of the elements that go into making them" mean?

    asked on October 13, 2008
  42. accounting

    At the end of the current year, $19,900 of fees have been earned but not billed to clients. a.What is the adjustment to record the accrued fees? Indicate each account affected, whether the account is increased or decreased, and the amount of the increase

    asked on August 2, 2016
  43. math

    Video games are on sale for 25% off. If a particular game regularly sells for $59.50, what is the sale price?

    asked on June 10, 2013
  44. physics

    if i throw a 2kg glob of clay and hit a wall at 3 m/s, how much momentum do i impact to the clay/wall? why?

    asked on November 7, 2010
  45. pre alg

    How do u find the GCF with exponets in a 7th gr. pre alg. class?

    asked on January 11, 2009
  46. Math

    The sum of digits of a three-digit number is 14, and the ten's digit of the number is one more than the unit's digit. If the digits were reversed in order, the new number is 198 more than the original. What is the original number?

    asked on April 30, 2017
  47. Math

    Two competing construction companies summit the following bids: Bill Quik: $7,500 plus $15 per square foot of the building. Shut Bild: $10,000 plus $12.50 per square foot of the building. For what number of square feet of building will competing bids be

    asked on April 30, 2017
  48. math

    The distance to the nearest 100,000 km from the earth to the moon is given as 400,000 km. The average speed to the Nearest 500km/h is 3500km/h. Calculate the least and greatest time it takes the rocket to reach the moon I figured out the formula speed =

    asked on March 31, 2015
  49. physics

    The drawing shows a person looking at a building on top of which an antenna is mounted. The horizontal distance between the person's eyes and the building is d = 83.0 m. In part a the person is looking at the base of the antenna, and his line of sight

    asked on August 23, 2012
  50. Math

    A triangular garden plot has one 16 foot side. The height perpindicular to that side is 12 feet 6 inches. If each plant requires 36 sq. in. of space, how many plants can be placed in the plot? Divide the area of the triangle by the area required per plant.

    asked on March 5, 2007
  51. Math

    Cheryl has $2000 less invested in a money market account paying 10% than in a bond paying 7%. If she received $820 in interest for a year how much did she have in the two accounts?

    asked on April 30, 2017
  52. math

    Find the sum of the squares of the deviations from the mean of a series of ACT scores: 24,17,27,25,22

    asked on October 20, 2013
  53. science

    A rectangular brick measures 6cm by 9cm by 20cm and has a mass of 2.563 kilograms. Calculate the bricks volume in cubic centimeters, and cubic milimeters

    asked on September 16, 2009
  54. algebra 1

    what is the area of the largest circle that will fit in a square with area 64cm squared? EXPLAIN. please help this stumped me

    asked on September 9, 2008
  55. Science

    What's the number of stage micrometer units in 10 ocular units using 4x, 10x, and 43x objectives ?

    asked on February 7, 2007
  56. Math Pre Algebra

    evaluate 5(14-2^3)+ 8/2 =

    asked on September 12, 2015
  57. Number Theory

    Can someone help me with this question How many integers from 1 to 10000 inclusive, are multiples of 2 and 5?

    asked on May 2, 2010
  58. math

    Helppp me! Need this in about 10 min. earlier the better!!!! pleaseee:) anyways... neg. 9/10 plus neg. 1/6 =?

    asked on November 5, 2009
  59. English

    I need help on formulating this into a paper that has to be 1500 words: I.Being a strong supportive parent can become tough especially if you’re a single parent. A.Some parents may have to work long late hours. 1.The obese children will eat whatever they

    asked on July 28, 2009
  60. chem

    what is the spdf electron configuration for s? i got [NE]3s23sp4 as an answer is this correct?

    asked on September 27, 2007
  61. computer science

    anyone know any new software capability in computer science that came out this year?

    asked on June 13, 2018
  62. Math

    Darryl used a total of 715.75 kilograms of flour to fill bags at a ocal flour mill. HE used 22.68 kilograms of flour to completely fill each nag. What is the greatest number of bags Darryl completely filled? A 33 B 32 C 31 D 30 My answer C am i correct?

    asked on November 23, 2017
  63. physical science

    A baseball is thrown a distance of 20 meters from the outfield to 3rd base. What is the baseball's velocity if it takes2.3 seconds to get to the third basemen? How would I solve this?

    asked on October 11, 2016
  64. Chemistry

    If I have 4.53*10^-15 moles of tantalum atoms, how many tantalum atoms do I have?

    asked on November 12, 2015
  65. math

    IT took me a while to learn how to flip flapjacks. In fact, a+1/a=6, then the value of a^2 + 1/a^2 is the number of attempts it took me. How many attempts did it take me? A. 34 B. 35 C. 36 D. 38 I don't know how to do it, I'm assuming that 1 1/a =6, but

    asked on August 6, 2015
  66. Chemistry

    A solution of an unknown base has a concentration of 0.250M, and a pH of 12.72. Calculate Kb for this base.

    asked on September 5, 2013
  67. life orientation

    Ways in which one can take responsibility to provide safe and healthy living environment?

    asked on April 30, 2013
  68. science

    HOw would you attempt to isolate and identify a bacterial infection acquired on another planet

    asked on April 29, 2013
  69. science

    Which cavity consists of the cranial cavity and vertebral canal? the dorsal or the ventral?

    asked on August 27, 2010
  70. math


    asked on September 2, 2009
  71. trig

    how do i do this? give the signs of the six trig functions for each angle: 74 degrees?

    asked on December 3, 2008
  72. english 1

    i have to do a paragraph and i have to write bout if i can change one thing wat wood it be and three reason ill take anything

    asked on October 20, 2008
  73. Architecture

    When you draw an elevation from a floorplan, how do you determine the vertical height of windows and doors?

    asked on December 11, 2007
  74. Math

    Kelly likes red marbles. Each of her 12 bags of marbles has 2/7 red marbles. How many separate bags of red marbles can she make? How to I work out this problem? Im not sure how to set it up, thanks!

    asked on April 23, 2018
  75. physical science

    Step by step how would i solve this. A baseball is thrown at a distance of 20 meters from the outfield to the third base. What is the baseball's velocity if it takes 2.3 seconds to get to the third one.

    asked on October 12, 2016
  76. Math

    Solve the following system of equations: −2x + y = 1 −4x + y = −1 (3, 1) (−1, 3) (−1, −3) (1, 3) ***

    asked on July 7, 2016
  77. Pre-Calculus

    Write the standard form of the equation of the line that passes through the point (-4, -2) and is perpendicular to the graph of 3x - 2y + 9 = 0.

    asked on November 5, 2015
  78. Math

    How do I simplify this expression : -12 / 3 * (-8 + (-4)^2 - 6 ) + 2 the answer is -6.

    asked on October 5, 2015
  79. math

    IT took me a while to learn how to flip flapjacks. In fact, a+1/a=6, then the value of a^2 + 1/a^2 is the number of attempts it took me. How many attempts did it take me? A. 34 B. 35 C. 36 D. 38 I don't know how to do it, I'm assuming that 1 1/a =6, but

    asked on August 6, 2015
  80. physics

    A child is pushing a shopping cart at a speed of 0.7 m/s. How long will it take the child to push the cart down an aisle with a length of 17.3 m? (Answer in seconds)

    asked on August 27, 2014
  81. Trig

    Sin^2 b(1 +cot^2 b) =1

    asked on April 3, 2013
  82. Number Theory

    How Do you expand (4x+3y+3z)^6?

    asked on May 2, 2010
  83. matt/116

    two angles are complementary. The sum of the measure of the first and the one-fourth of the second angle is 62.25 degrees find the measures of the angle.

    asked on April 11, 2010
  84. Math

    What is neg. 9/10 + neg. 1/6? Pleaseee help im stuck:/

    asked on November 5, 2009
  85. English

    Here is my thesis can you please help: Even thought childhood obesity is not only the parents' fault but the child's as well, having a strong parent who help promote healthy eating and exercise can help with the health problems that will occur during there

    asked on July 29, 2009
  86. algebra

    how to do unit rate $60 for 8 h there is more like 3/4lb and 861bagels/3d and 850cal/1.25h

    asked on October 20, 2008
  87. language arts

    retribution means the opposite of distribution or collection.

    asked on September 15, 2008
  88. chem

    also what does it mean when they say write the abbreviated notation (based on noble gas) for s? how do i begin to do this

    asked on September 27, 2007
  89. math

    a manufacturer's cost is given by C= 300 cube root of n + 1200, where c is the cost and n is the number of parts produced. find the cost when 8 parts are produced. help please!!!! We have C = 300n1/3 +1200 Substitute 8 for n to get C = 300*81/3 +1200 You

    asked on October 13, 2006

    the rule is y=x-12. fill in blanks are 6 and -22. to get 6 add -6+12 to get 6. to get -22 subtract -10 - -12.

    posted on May 7, 2018
  2. Math

    100% thx

    posted on April 25, 2018
  3. Social

    im in 6th and got it right thxs can

    posted on April 17, 2018
  4. Math(1 question plz help thanks!=D

    thxs so much i go to connections academy and i got it right

    posted on April 17, 2018
  5. Art

    thanks no name

    posted on April 17, 2018
  6. English

    ya its a connections academy quiz

    posted on April 17, 2018
  7. Science

    thx so much idk

    posted on April 17, 2018
  8. Math

    7 10 of your friends prefer to take a math test on Friday. 7 20 prefer Friday and Wednesday. What fraction of those who prefer Friday also prefer Wednesday?

    posted on March 22, 2018
  9. Math, are they all right?

    Killjoy is eight ABBD is correct thanks Take killjoy answers no one elses

    posted on January 8, 2018
  10. artist

    ACA is correct

    posted on January 7, 2018