Pam

Popular questions and responses by Pam
  1. math

    A 10 foot ladder is placed against a vertical wall of a building, with the bottom of the ladder standing on level ground 8 feet from the base of the building. How high up the wall does the ladder reach.

    asked on March 15, 2014
  2. Physics

    A butterfly at eye level is 20 cm in front of a plane mirror. You are behind the butterfly, 50 cm from the mirror. What is the distance between your eye and the image of the butterfly in the mirror? Explain your reasoning. We also have to make a sketch. I

    asked on March 8, 2008
  3. Math

    A model rocket is launched with an initial velocity of 164ft/sec. It's height h, in feet, after t seconds is given by the formula h=164t-16t^2. After how many seconds will the rocket first reach a height of 400ft?

    asked on August 2, 2014
  4. Algebra

    The accompanying bar graph shows the milk fat percentages in three dairy products. A=whole milk @4%. B= milk for cream cheese @8%, and C= cream @30%. How many pounds each of whole milk and cream should be mixed to form 200 lb of milk for cream cheese? How

    asked on April 13, 2014
  5. Physics

    If you hold a pocket mirror almost at arm's length from your face,and note how much of your face you can see; to see more of your face, should you hold the mirror closer or farther away , or would you have to get a larger mirror? I tried this, but I could

    asked on March 8, 2008
  6. Math

    Evaluate the expression. P(9,4) A.1512 B.240 c.3024 D.15,120 (9) (4) the 4 is underneath the 9 in the parathesis with it A. 15,120 B.126 C.1512 D.240

    asked on May 30, 2017
  7. math

    a 13 ft ladder is placed against a vertical wall of a building, with the bottom of the ladder stand on level ground 5ft from the base of the building. how high up the wall does the ladder reach.

    asked on November 1, 2013
  8. 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 on May 3, 2014
  9. Algebra

    A scientist wants to research the potential spread of germs by contact. She knows that the number of possible handshakes within a group of n people is given by the equation N=1/2(n^2-n). Everyone at a party shook hands. There were 253 handshakes in all.

    asked on April 30, 2014
  10. Math

    The first term is 23, and the common difference is 4 ; n= 5

    asked on May 30, 2017
  11. Math

    A train leaves a station and travels north at a speed of 45mph. Four hours later, a second train leaves on a parallel track and travels north at 105 mph. How far from the station will they meet? The trains will meet ________ miles away from the station

    asked on March 5, 2014
  12. Chemistry

    1) Determine the equilibrium constant, Keq, at 25°C for the reaction 2Br– (aq) + I2(s) ⇌ Br2(l) + 2I– (aq) My wrong answer: 7.6e-10 2) Aluminum metal is formed by the electrolysis of Al2O3 in molten cryolite. How many minutes are required to form

    asked on May 17, 2011
  13. Algebra

    In 1991, the life expectancy of males in a certain country was 67.2 years. In 1995, it was 71.1 years. Let E represent the life expectancy in year t and let t represent the number of years since 1990. The linear function E(t) that fits the data is E(t) =?t

    asked on February 13, 2014
  14. chemistry

    if .500 mol of copper combines with .250 mol of sulfur what is the empirical formula of copper sulfide?

    asked on November 29, 2010
  15. Physical Science

    How much heat is necessary to change 20 g of ice at 0 degrees C into water at 0 degrees C?

    asked on July 12, 2010
  16. Enlish-College

    Why could one say that "Shall I Compare Thee to a Summer's Day"? presents contrast rather than comparison? The poem I am referencing in quotations is by Shakespeare.

    asked on October 14, 2008
  17. Math

    A basketball player scored 18 times during one game. He scored a total of 35 points, two for each two point shot and one. For each free throw. How many two point shots did he make? How many free throws?

    asked on August 12, 2014
  18. Chemistry

    A solution of ammonia and water contains 2.90×1025 water molecules and 9.00×1024 ammonia molecules. How many total hydrogen atoms are in this solution? any help would be great.

    asked on September 8, 2012
  19. physics

    An iron wire has a cross-sectional area equal to 1.20 10-5 m2. Carry out the following steps to determine the drift speed of the conduction electrons in the wire if it carries a current of 34.0 A. (a) How many kilograms are there in 1.00 mole of iron? 1

    asked on March 10, 2012
  20. Anatomy

    Why is feedback and homeostasis so important? How do they connecf? What would be the consequence if the homeostasis was not stable.

    asked on June 9, 2017
  21. math

    a 20-foot ladder is placed against a vertical wall of a building, with the bottom of the ladder standing on level ground 16ft from the base of the building. how high up the wall does the ladder reach?

    asked on October 31, 2013
  22. Math

    A lamppost is 20 feet tall and a man is standing 30 feet away casting a 10 foot shadow. How tall is the man?

    asked on June 9, 2019
  23. Math

    In how many ways can 4 people be chosen and arranged in a straight line, if there are 5 people from whom to choose? A shirt company has 3 designs that can be made with short or long sleeves. There are 5 color patterns available. How many different types of

    asked on May 30, 2017
  24. calculus

    find volumes of solids generated by revolving the regions bounded by the graphs of the equations about the given lines. y=square root of x y=0 x=3

    asked on July 22, 2015
  25. Algebra

    Two angles are complementary. Their difference is 50^*. Find the angles.

    asked on August 12, 2014
  26. Math

    The number of tickets sold each day for an upcoming performance is given by N(x)=-0.3x^2+9x+15, where x is the number of days since the concert was first announced. When will daily ticket sales peak and how many tickets will be sold that day?

    asked on March 18, 2014
  27. Math

    An architect has allocated a rectangular space of 264ft^2 for a square dining room and a 10ft wide kitchen. What is both the width of the square dining room and the length of entire space.

    asked on March 15, 2014
  28. Algebra

    Could someone help me with finding an equation of the line containing the given pair of points (3,2) and (9,7)

    asked on January 26, 2014
  29. Math

    Lisa attended 72% of 32 school events. How many schol events did Lisa not attend? my answer is 8

    asked on September 12, 2012
  30. English 1

    Revise the following paragraph, improving it without changing its overall meaning. Pay particular attention to any potential sentence fragments. Cooking is not as easy as it looks. For example, the terminology. Selecting the freshest ingredients for

    asked on March 14, 2010
  31. Math

    The leaning tower of Pisa is 55.9 m tall and leans 5.5 degrees from the vertical. If its shadow is 90 m long, what is the distance from the top of the tower to the top of the edge of its shadow, assuming the ground around the tower is level?

    asked on December 19, 2008
  32. Math

    8 students share 5 square pieces of cake equally. Draw to show how much each person gets.

    asked on September 22, 2015
  33. TRIG

    5. A wheel 5.00 ft in diameter rolls up a 15.0° incline. How far above the base of the incline is the top of the wheel after the wheel has completed one revolution? A. 4.07 ft B. 13.1 ft C. 8.13 ft D. 9.07 ft

    asked on April 28, 2012
  34. math

    A 4 ft spring measures 8 ft long after a mass weighing 8 pounds is attached to it. the medium through which the mass moves offers a damping force numerically equal to sqrt.2 times the instantaneous velocity. Find the equation of motion if the mass is

    asked on February 26, 2012
  35. 3rd Grade Math

    "Tommy has 16 toy trucks. How many different arrays can he make with all the trucks?What are the arrays?"

    asked on December 15, 2011
  36. chemistry

    A 1.20-L container contains 1.10 g of unknown gas at STP.What is the molecular weight of the unknown gas?

    asked on November 13, 2010
  37. SCIENCE

    The smallest of the earth's oceans is the _______ Ocean a) Pacific b) arctic c) indian d) atlantic e)lagon B

    asked on September 2, 2010
  38. Grammar

    Which sentence does the verb have a direct object? She is insecure. or They won the game. I cannot tell which is correct.

    asked on November 11, 2009
  39. English-College

    I guess I don't understand the question(why the quote presents contrast rather than comparison) my book is asking. I'm new to this poetry thing, please help!

    asked on October 14, 2008
  40. Math

    If 4X + Y =H, Then X is equal to? 4X + Y =H Move Y to other side by subtracting Y from both sides. 4X + Y - Y = H - Y Combine terms. 4X = H - Y Now divide both sides by 4 to get 1X. 4X/4 = (H - Y)/4 X = (H-Y)4 or (1/4)(H-Y)

    asked on April 16, 2007
  41. science

    A pipe of diameter 80mm is fitted with a branch section into which fit two pipes of equal diameter. If it is desired that the velocity remain constant throughout, determine the required diameter of each of the branch pipes.

    asked on September 13, 2016
  42. Math

    One day 3/8 of the students in Jack's class ate toast for breakfast. Another 1/8 of the students ate oatmeal. Jack added the fractions and found the sum was 7/8. Which statement best describes the sum 7/8? A) It is reasonable because 1/2 + 0 = 1/2. B) It

    asked on July 21, 2016
  43. Math

    Pen has 1/2 cup and 1/8 cup measuring cups. What are two ways he could measure out 1 3/4 cups of flour? Plz help thanks!

    asked on July 5, 2016
  44. Chemistry

    How do I prepare 1liter of a 93.1% w/w solution of sulfuric acid using 98% sulfuric acid and water?

    asked on March 14, 2016
  45. Math

    On what day in the year 1943 was the year 300 000 minutes old?

    asked on September 7, 2015
  46. Chemistry

    Nitrogen dioxide reacts with carbon monoxide to produce nitrogen monoxide and carbon dioxide in the reaction, . The first step in the reaction is proposed to be two NO2 molecules colliding to form NO3 and NO. The NO3 intermediate then reacts with CO to

    asked on February 16, 2015
  47. Math

    Write the opposite of 0 Celsius and 32f temperature as integer. Plz help

    asked on September 6, 2014
  48. Math

    The number of tickets sold each day for an upcoming performance of Handel,s Messiah is given by N(x)=-0.4^2+8.8x+10, where x is the number of days since the concert was first announced. When will daily ticket sales peak and how many tickets will be sold

    asked on August 5, 2014
  49. math

    As a fundraiser a school club is sellin posters. The printer charges a $24 set up fee plus $o.20 for each poster. Then the cost y in dollars to print is given by the linear equation y=0.20x+24 A. The printing of 50 posters cost? The printing cost of 100

    asked on April 7, 2014
  50. math

    north avenue is 36ft wide when it ends at main st. a 45 foot long diagonal crosswal allows pedestrians to cross main st to or from either corner of north ave. determine the width of main st.

    asked on October 31, 2013
  51. math

    a triangular traffic island has a base half as long as its height. the island has an area of 121m^2. find the base and the height.

    asked on October 31, 2013
  52. statistics - conditional probability

    Event A has probability 0.9 of occurring. Event B has 0.2 chance of occurring if, and only if, event A has occurred. What is the overall probability that event B will occur? I'm so confused. This seems so simple, I'm not sure why I can't reason through it.

    asked on September 25, 2013
  53. Math

    What is an equation of the line having the given slope and containing the given point M = -8,(4,6)

    asked on September 13, 2013
  54. Chemistry Honors

    Hydrogen burns to give water. If 200cm3 of H2 reacts with 150cm3 of O2 what volume of water vapor is produced

    asked on May 29, 2013
  55. math

    To determine the number of trout in a lake, conservationist catches 161 trout, tags them and throuws them back into the lake. Later, 39 trout are caught: 13 of them are tagged. How many trout would the conservationist expect to be in the lake?

    asked on April 26, 2013
  56. chemistry

    calculating the molarity of acetic acid in a vinegar sample given that 5.00 of vinegar required 43.50 mL of 0.1050 M NaOH to just reach the methyl red endpoint.

    asked on April 24, 2013
  57. Statistics

    4. The data below are from an independent-measures experiment comparing three different treatment conditions. Treat. 1 Treat 2 Treat 3 0 1 4 0 4 3 G=24 0 1 6 2 1 3 Σ X² = 92 T=2 T=6 T=16 SS=3 SS=9 SS=6 Use an analysis of variance with α of .05 to

    asked on March 25, 2013
  58. science

    A pyramid of numbers demonstrates that a community has a) producers who depend on consumers for food b) more producers than primary consumers c) the same number of organisms at each level d) more consumers than producers e) no loss of usable energy B

    asked on September 9, 2010
  59. science

    The following statement is a vaild scientific theory. If Watson and Crick had not discovered the structure of DNA, bio - technology would be 20 years behind where it is today. TRUE FALSE true

    asked on September 6, 2010
  60. Introduction to health care

    what are some advantages and disadvantages of TRICARE?

    asked on December 6, 2009
  61. Run-on Sentences

    Is this a run-on sentence? "I thought about what he'd said soon I realized he was right." I think it is. Just want to be sure.

    asked on November 11, 2009
  62. Language Arts

    Could you give me examples of action verbs, linking verbs and helping verbs?

    asked on January 12, 2009
  63. calculus

    Please help, my live tutor and I could spent 2 hours trying to solve these two: find an equation for tangent line y=-1-8^2@ (-4,-129) find the derivative of the function:----we both kept getting the same answer, but Mathlab kept saying that it was wrong:

    asked on April 25, 2008
  64. trigonometry

    find soultuion in degree, use exact value 1. cos2xcosx+sin2xsinx=-1/2

    asked on December 4, 2007
  65. Biology

    How are sperm cells specialized to carry out their functions in penetration and fertilization of an egg? Explain with the help of a diagram. could anyone please help me with this question? any sources cited would be appreciated, especially sources for

    asked on November 5, 2019
  66. Math

    If f (x)= x^2-1 and f(2a)=35, then what could be the value of a ?

    asked on August 1, 2017
  67. Anatomy

    What is the the muscles nervous systems ? Muscles are: Smooth muscle Skeletal muscle Cardiac muscle

    asked on June 9, 2017
  68. English

    3 quotes for fiction signposts. For the book called Bird by bird by anne lamott

    asked on May 16, 2017
  69. Chemistry

    I have asked this question before but I was not clear enough. I want to prepare a 37% w/w solution (in water)of sulfuric acid from 96% sulfuric acid. I need around 500ml, I know it won't be exactly that, I want to know how to use the conversion using

    asked on December 22, 2016
  70. algebra

    solve for x Inx-In5=0 x=5 n=0

    asked on June 20, 2016
  71. statistics

    1. What two aspects of data determine which measure of central tendency to use? 2. Why is it best to use the mean with a normal distribution ?

    asked on January 19, 2016
  72. algebra

    In mixing a weed killing chemical a 40% solution of the chemical is mixed with an 85% solution to get 20 L of a 60% solution. How much of each solution is needed?

    asked on May 9, 2015
  73. Math

    If a spherical tanl 4m in diameter can be fillef with a liquid for $900, find the cost to fill a tank 12m in diameter. The cost to fill the 12m tank is $__.

    asked on January 22, 2015
  74. math

    At which grade level is it most appropriate for children to group by more than one attribute?

    asked on October 19, 2014
  75. Algebra

    The sum of two numbers is 9. Four times the larger number plus three times the smaller number is 48. Find the numbers. Thank you

    asked on August 12, 2014
  76. Algebra

    $5400 is invested, part of it at 10%, and part of it at6%. For a certain year, the total yield is $444.00. How much was invested at each rate?

    asked on April 30, 2014
  77. Algebra

    $6300 is invested, part of it at 11% and part of it at 8%. For a certain year, the total yield is $597.00. How much was invested at each rate?

    asked on April 17, 2014
  78. Algebra

    $6300 is invested, part of it at 11% and part of it at 8%. For a certain year, the total yield is $597.00. How much was invested at each rate?

    asked on April 13, 2014
  79. Algebra

    The formula r =2 sqrt.5L can be used to approximate the speed r, in miles per hour, of a car that has left skid marks of length L, in feet. How far will a car skid at 60 mph?

    asked on March 31, 2014
  80. Math

    An architect has allocated a rectangular space of 589ft^2 for a square dining room and a 12ft wide kitchen. Find both the width of the square dining room and the length of the entire rectangular space. The width of the square dining room is _____ft The

    asked on February 23, 2014
  81. algebra

    explain to me why the first coordinate of the y intercept is always 0 please.

    asked on February 1, 2014
  82. math

    explain to me why the slant of a line with slope 5/3 is steeper than the slant of a line with slope 4/3

    asked on February 1, 2014
  83. Algebra

    Find a slope if it exists, please. 9x-y=9

    asked on February 1, 2014
  84. Math

    Find the slope, if it exists, of the following line. X=2/15

    asked on January 30, 2014
  85. Math

    Find an equation of the line having the given slope and containing the point. M=-8,(1,8)

    asked on January 30, 2014
  86. Math

    What's an equation containing the given pair of points. Express in the form of x=a, y=b, or y=mx+b. (-5,-5) and (3,3)

    asked on January 26, 2014
  87. Math

    An architect has allocated a rectangular space of 666ft^2 for a square dining room and a 19ft wide kitchen. Find the width of the square dining room and the length of the entire rectangular space.

    asked on November 2, 2013
  88. Math

    A 26ft ladder is placed against a vertical wall of a building, with the bottom of the ladder standing on level ground 24ft from the base of the building. How high up the wall does the ladder reach?

    asked on November 2, 2013
  89. Math

    Find the vertex of the parabola. Sketch the graph. Y=x^2+2x-3

    asked on November 1, 2013
  90. Math

    The base of a triangle is 8cm greater than the height . The area is 24cm^2. The height is what and the base is what?

    asked on November 1, 2013
  91. statistics - conditional probability

    Event A has probability 0.9 of occurring. Event B has 0.2 chance of occurring if, and only if, event A has occurred. What is the overall probability that event B will occur? I'm so confused. This seems so simple, I'm not sure why I can't reason through it.

    asked on September 25, 2013
  92. Science/Biology

    Pick the correct answer to the following question. Write a brief statement explaining why each choice of answers is correct or incorrect. In diabetes mellitus, because of insufficient insulin production, glucose cannot enter cells. instead it accumulates

    asked on September 3, 2013
  93. Please Help Biology Question

    Pick the correct answer to the following question. Write a brief statement explaining why each choice of answers is correct or incorrect. In diabetes mellitus, because of insufficient insulin production, glucose cannot enter cells. instead it accumulates

    asked on September 3, 2013
  94. physics

    A man is 3/8th of the way across a railroad bridge when he hears a train coming. He knows that this passenger train cruises along at 60 MPH in this area. It turns out that he can run to either end of the bridge and jump off just ahead of the train.

    asked on April 29, 2013
  95. math

    a sameple of 137 firecrackers contained 6 duds. how many duds would you expect in a sample of 2466 firecrackers?

    asked on April 11, 2013
  96. Statistics

    4. The data below are from an independent-measures experiment comparing three different treatment conditions. Treat. 1 Treat 2 Treat 3 0 1 4 0 4 3 G=24 0 1 6 2 1 3 Ó X² = 92 T=2 T=6 T=16 SS=3 SS=9 SS=6 Use an analysis of variance with á of .05 to

    asked on March 19, 2013
  97. graphs in math

    C varies inversely as J. If C = 7 when J = 0.7, determine C when J = 12

    asked on January 20, 2013
  98. math

    substract; than reduce answer to lowest terms 5/22- 1/41

    asked on January 18, 2013
  99. algebra

    the speed of train A is 8 mph slower than the speed of train B. Train A travels 220 miles in the same time it takes train B to travel 260 miles. Find the speed of both trains. Speed of train A = Speed of train B =

    asked on November 12, 2012
  100. Fin

    A $50,000 loan is to be amortized over 7 years, with annual end-of-year payments.

    asked on November 8, 2012

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