Questions Asked on
April 2, 2011

  1. chemistry

    when ammonia is added to Zn(NO3)2 solution, a white precipitate forms, which dissolves on the addition of excess ammonia. But when ammonia is added to a mixture of Zn(NO3)2 and NH4NO3, no precipitate forms at any time. Suggest an explanation for this

    asked by Ana
  2. math

    Why did the sea monster eat 27 ships carrying potatoes?

    asked by keana
  3. math

    The windows of a downtown office building are arranged so that each floor has six fewer windows than the floor below it. If the ground floor has 52 windows, how many total windows are on the first eight floors?

    asked by matt
  4. math

    I have 14 questions and I was wondering if someone could check my answers. This is a do or die situation. If I don't get an A, I may not get to graduate. I really appreciate you taking your time to double check theses for me. Thanks if you do. I know its a

    asked by Brittany
  5. Human Growth and Development

    According to Erikson, the stage of intimacy versus isolation: a. Is followed by the search for identity b. Is characterized by a need for generativity c. Involves the need to share one’s personal life with someone else d. Occurs only if one avoids

    asked by Megan :)
  6. chemistry

    calculate the OH- concentration in (a) 1.0M NH3 and (b) a solution that is 1.0M in NH3 and also 1.0M in NH4Cl. (Kb = 1.8 x 10^-5 for NH3)

    asked by Ana
  7. math

    Freitas Corporation was organized early in 2009. The following expenditures were made during the first few months of the year: Attorneys' fees in connection with the organization of the corporation $12,000 State filing fees and other incorporation costs

    asked by Bobbi Loffredo
  8. PHYSICS

    A space station consists of two donut-shaped living chambers, A and B, that have the radii shown in the drawing. As the station rotates, an astronaut in chamber A is moved 3.18 102 m along a circular arc. How far along a circular arc is an astronaut in

    asked by Jacob
  9. accouting

    Nancy Company has budgeted sales of $300,000 with the following budgeted costs: Direct materials $60,000 Direct manufacturing labor 40,000 Factory overhead Variable 30,000 Fixed 50,000 Selling and administrative expenses Variable 20,000 Fixed 30,000

    asked by eric
  10. Math

    Oaktree Company purchased a new machine and made the following expenditures: Purchase price $45,000 Sales tax 2,200 Freight charges for shipment of machine 700 Insurance on the machine for the first year 900 Installation of machine 1,000 The machine,

    asked by Bobbi Loffredo
  11. finance

    You were hired as a consultant to Giambono Company, whose target capital structure is 40% debt, 15% preferred, and 45% common equity. The after-tax cost of debt is 6.00%, the cost of preferred is 7.50%, and the cost of retained earnings is 12.75%. The firm

    asked by adam
  12. Chemistry

    If 111.70 g of iron react with oxygen gas to produce iron (III) oxide, how many moles of oxygen gas will be needed?

    asked by Heyyy
  13. chemistry

    if air bubbles remain in the burette during the titration, what will the effect be on the calculated values of :: a- the concentration of NaOh b- the molarity of H2SO4 ??

    asked by Huda
  14. Physics

    Two identical pucks are on an air table. Puck A has an initial velocity of 2.0m/s in the +x-direction. Puck B is at rest. Puck A collides elastically with Puck B and A moves off at 1.0m/s at an angle of 60 degrees above the x-axis. What is the speed and

    asked by Help!
  15. Chemistry: Answer check please!

    1. Reactions follow the law of conservation of mass. a.) True b.) False Answer: True 2. Reactants are the materials used in a chemical reaction. a.) True b.) False Answer: True 3. In a chemical equation, the mass on the left of the arrow equals the mass on

    asked by Cheryl
  16. chemistry

    suppose you are given the following experimentally observed facts regarding the reactions of silver ion. (a) Ag+ reacts w/ Cl- to give white AgCl (s) (b) Ag+ reacts with ammonia to give a quite stable complex ion, Ag(NH3)2+ (c) a black suspension of solid

    asked by Ana
  17. algebra

    A pair of emirps consists of two prime numbers such that reversing the digits of one number gives the other. How many pairs of two-digit emirps exist such that each number in the pair is greater than 11?

    asked by Sara
  18. Physics

    A car with a mass of 1700 kg is traveling directly northeast (45 degrees between north and east) at a speed of 14m/s (31mph), and collides with a smaller car with a mass of 1300kg that is traveling directly south at a speed of 18m/s (40mph). The two cars

    asked by Anonymous
  19. Physics

    If a rock is dropped from a height of 64 feet, how long does it take to hit the ground? How fast is it going when it hits the ground?

    asked by Ann
  20. calculus(work)

    a rectangular water tank has a length 20 ft, width 10 ft , and depth 15 ft . if the tank is full , how much work does it take to pump all the water out (using calculus)?

    asked by tony
  21. chemistry

    If the end point in the titration of oxalic acid with NaOH solution is super-passed (too pink), will the molar concentration of NaOH be hiegher or lower than the actual value ? Explain ..

    asked by Huda
  22. Chemistry

    I am having trouble figuring out the calculations for osmotic pressure. This is what I need to do. Indicate whether the osmotic pressure of a 0.1M NaNO3 solution will be less than , the same as , or greater than that each of the following solutions a. 0.1M

    asked by allison
  23. URGENT - Trigonometry - Identities and Proofs

    Okay, today, I find myself utterly dumbfounded by these three questions - Write a proof for - 2/(sqrt(3)cos(x) + sin(x))= sec((pi/6)-x) Solve the following equation - 2sin(2x) - 2sin(x) + 2(sqrt(3)cos(x)) - sqrt(3) = 0 Find all solutions (exact) to the

    asked by Veronica
  24. physics

    A car traveling at 22.1 m/s honks its horn as it directly approaches the side of a large building. The horn produces a long sustained note of frequency f0 = 235 Hz. The sound is reflected

    asked by help me
  25. algebra

    A parent raises a child's allowance by 12% each year. If the allowance is $3.50 now, when will it reach $18?

    asked by Beverly
  26. Chemistry

    Balanced ionic equation for ClO + Fe(OH)3 = Cl + FeO4. Show electron balance and work

    asked by BJ
  27. chemistry

    calculate the work done (in joules) when 50.5g of tin dissolves in excess acid at 1.08 atm and 27 degrees Celsius

    asked by Anonymous
  28. Chemistry

    What is the molarity of the solution prepared by diluting 25.0ml of 0.220M NaCl to 75.0ml of final volume?( explain your steps)

    asked by Sara
  29. English

    In paragrpahs 2-4 the article Public Statement by Eight Clergymen why does King use narrative in paragraph 2 and why does King use refutation. In paragraph 3 why does King use allusion.

    asked by Anonymous
  30. chem

    calculate the work done (in joules) when 50.5g of tin dissolves in excess acid at 1.08 atm and 27 degrees Celsius. Assume ideal gas behavior. Sn(s)+2H+(aq) ---> Sn2+(aq)+H2(g)

    asked by Anonymous
  31. Chem

    net ionic equation of aluminum hydroxide + sodium hydroxide

    asked by Adrianna
  32. Math

    On March 31, 2009, Wolfson Corporation acquired all of the outstanding common stock of barney Corporation for $17,000,000 in cash. The book values and fair values of barney's assets and liabilities were as follows: Book value Fair value current assets

    asked by Bobbi Loffredo
  33. chemistry

    can someone please explain to me in dummy language this question... Why is the graph of transmittance versus concentration not linear?... Thankyou very much

    asked by jen
  34. Chemistry 105

    The molar heat capacity of silver is 25.35 J/mol*C. How much energy would it take to raise the temperature of 12.0 g of silver by 14.6 degrees Celsius?

    asked by Katherine
  35. Chemistry

    Determine the final concentration of 20ml of 5M NaCl of solutions after 30ml of water has been added.

    asked by Kate
  36. Social Studies/World History

    hi I was doing a study guide for a big test I'm having in my World History class and I was wondering if anyone can help me answer this question... -what trends in political organization and economic development can be identified in 20th century world

    asked by Amanda
  37. Math(Please check)

    Find the x coordinates of all relative extreme points of f(x)=1/4x^4 + 2/3x^3- 3/2x^2 + 4 f'(x)=x^3 + 2x^2 - 3x = 0 (x^2 + 3)(x-1) = 0 x=-3 x=1 x=0 Is this correct?

    asked by Hannah
  38. ALGEBRA

    A magazine advertises its $12 annual subscription price as 70% off the newsstand price. What is the number of dollars per year a reader would spend if the magazine were purchased at the newsstand price?

    asked by kasey
  39. English

    1. The President is to visit China next month. 2. The President is going to visit China next month. 3. The President is due to visit China next month. 4. The President is scheduled to visit China next month. (Does #1 mean #2, #3,and #4? Is #1 commonly used

    asked by rfvv
  40. Business Communication

    1. Identify the sentence that contains the correct form ( the contraction or the possessive word). a. As the saying goes, "Its hard to say goodbye." b. As the saying goes, "It's hard to say goodbye." c. As the saying goes, "Its' hard to say goodbye." d. As

    asked by Shauny
  41. English

    Can anyone summarize acts II and III of Romeo and Juliet into two separate paragraphs? I can't seem to put the scenes into detail for my upcoming play. Something detailed please and thank you!

    asked by micah
  42. Urgent Math please check

    Very Important I can get someone to check these for me... I have to get an A, and I was wondering if someone could double check these for me. I am about 95% sure they are right, but just need a fresh set of eyes. I know I've been sending alot, but I really

    asked by Brittany
  43. Math(Please check)

    Find the x coordinates of all relative extreme points of f(x)=1/4x^4 + 2/3x^3- 3/2x^2 + 4 f'(x)=x^3 + 2x^2 - 3x = 0 (x^2 + 3)(x-1) = 0 x=-3 x=1 x=0 Is this correct?

    asked by Hannah
  44. physics

    If 4.5 L of antifreeze solution (specific gravity = 0.80) is added to 4.5 L of water to make a 9 L mixture, what is the specific gravity of the mixture?

    asked by Anonymous
  45. Chemistry: Answers please check

    1. The kinetic-molecular theory states that all particles of matter are always in motion. a.) True b.) False Answer: True 2. Gases have molecules in rapid random motion. a.) T

    asked by Cheryl
  46. algebra

    What is the 100th term of the arithmetic sequence 3/4, 5.25, 39/4, 14.25,...? Express answer as a decimal to the nearest hundredth.

    asked by kasey
  47. Math

    A can has a diameter of 9 inches and a height of 11 inches. What is the area of a label that goes around a can?

    asked by Reneisha
  48. Algebra

    what is the positive difference in the sums of the letters in the words MATH and COUNTS, if each letter is assigned a value as follows: A=1, B=-2, C=3, D=-4, ..., Y=25, Z=-26?

    asked by Jack
  49. physics

    A 33kg traffic light hangs from a vertical beam by two wires. The wire on the left side of the light has an angle of 53 degrees to the beam and the right side wire has an angle of 37 degrees with the beam. Calculate the tension in each of the wires. Would

    asked by Mark
  50. Chem: Two questions

    Identify the two types of reactions: 1. A+B--> Answer: Synthesis Reaction 2. A+BC-->AC+B Answer: Single Replacement or Substitution Reaction THANK YOU !

    asked by Cheryl
  51. Math

    Find the slope of the tangent line to the curve y= 4 / 3(x^3 - 2x^2 + 3x -5) at (2, 4/3) the answer choices are 1) 2/3 2) 4/3 3) -28/3 4) -8/3 5) 8/3 My answer was 4/3 but this is wrong.

    asked by Hannah
  52. physics

    Why is it impossible for a material to have an index of refraction less than one

    asked by iqra
  53. Chemistry: Check please, these are hw assignments

    1. Gases can be considered fluids. a.) True b.) False Answer: False 2.Gases are not easily compressed. a.) True b.) False Answer: True 3. Gases spread to fill out space. a.) True b.) False Answer: True 4. Increased pressure on a gas at constant temperature

    asked by Cheryl
  54. English

    1. What do you have to do in an emergency? 2. What do you have to do in emergency? (Which one is correct? Are both OK? Do we have to use 'a'?)

    asked by rfvv
  55. Algebra

    A three-digit number has the same hundreds, tens and units digit. The sum of the prime factors of the number is 47. What is the three-digit number?

    asked by Jon
  56. physical science

    Compare the amount of heat required to change the temperature of 150 kg of copper from 12 degrees celcius to 56 degrees celcius to the amount of heat required to change the temperature of 150 kg of gold from 12 degrees celcius to 56 degees celcius.

    asked by Judy
  57. physics

    A car is travelling at 42.4 km/h on a flat highway. The acceleration of gravity is 9.81 m/s^2. If the coefficient of friction between the road and the tires on a rainy day is 0.125 what is the minimum distance for the car to stop? Answer is metres

    asked by grace
  58. physics

    Explain how you can tell the following statement is false A neutron was moving in a circle while speeding up. As a result, gamma rays were emitted.

    asked by iqra
  59. physics

    Explain how you can tell the following statement is false A neutron was moving in a circle while speeding up. As a result, gamma rays were emitted.

    asked by iqra
  60. Chemistry

    If 31.00 mL of a dilute solution of lime water (calcium hydroxide) required 10.10 mL of 0.246 M hydrochloric acid solution for neutralization to a methyl red end point, calculate the molarity of the lime water. Can you please explain how to do it? Do I use

    asked by Lara
  61. Early Childhood Education

    1. The purpose of program planning is to A. keep children safe and healthy. B. provide routines to keep children busy. C. organize experiences that support growth and nurture development. D. let children do what they want to do. 2. The term used to

    asked by Heather
  62. calculus

    6. A parabaloid with height h and radius r has volume 1/2 pieR^2H. Consider a parabaloid-shaped water tank with height of 7m and radius of 4m. If V is the volme of water in the tank and h is the depth of water, find the relationship between dV/dt and

    asked by andrew
  63. calculus

    1. Consider a projectile, say a frictionless teddy bear, which is thrown at an angle of theta with an initial velocity of v0.  a) For a fi xed angle, and the maximum height of the teddy bear.  b) Calculate the distance that the teddy bear travels before

    asked by andrew
  64. SCI 275

    . Final Project: Mitigation Strategies and Solutions • Resource: Appendix A • Use the topic you chose for the Capstone Discussion Question or choose another topic you have learned about over the past 8 weeks. • Focus on a specific environmental

    asked by Mary
  65. Math

    Find the relative minimum point(s) of f(x)=x^4/4 - x^3 -5x^2 - 10 I know you have to take the derivative but I am not sure how to do that for this problem.

    asked by Hannah
  66. Geometry

    The scale factor of two similar triangles is 2/5. if the perimeter of the small triangles is 80 cm, what is the perimeter of the large triangle?

    asked by Amanda
  67. math

    The scale factor of two similar triangles is 2/5. if the perimeter of the small triangles is 80 cm, what is the perimeter of the large triangle?

    asked by Anonymous
  68. Social Studies

    Both Stalin in the Soviet Union and Hitler in Germany instituted ruthless campaigns against supposed enemies of the state. Why do you think dictators need to find scapegoats for their nations ill? (PLEASE ANSWER THE QUESTION IN ONE BIG PARGRAPH AND THAN I

    asked by Hannah
  69. Early Childhood Education

    The purpose of a home visit is to: A. see if the child's family lives in an acceptable neighborhood. B. understand the interactions that go on at home between the child and the family. C. compare the child's actions with those of brothers and sisters. D.

    asked by Heather
  70. math

    Provide an example of an arithmetic series which totals zero. Using complete sentences, explain how you created the example.

    asked by matt
  71. Early Childhood Education

    An activity that would support small muscle development is A. riding a tricycle. B. dress-up. C. jump rope. D. bubble blowing. I can't choose between A or C

    asked by Heather
  72. Math

    Differentiate: f(x) = 2x-(x^2+1)^7 / 3 2-(2x)^6 Would it be 2-x / 3(x^2+1)^6 ?

    asked by Hannah
  73. Math(Please check)

    Determine whether on not the following limit exists. If, so compute the limit. lim x->3 of sqrtx - 4 / x^3 +27 sqrt 3 - 4 / x^3 + 27 = sqrt 3 -4 / 54 Is this correct?

    asked by Hannah
  74. Early Childhood Education

    An appropriate sensory-motor activity for a child up to eight months of age is A. touching toys of different shapes, sizes, and textures. B. playing with puzzles with a few large pieces. C. drawing with crayons or markers. D. stringing large beads on a

    asked by Heather
  75. English

    1. Tell me when to meet. 2. Tell me when I should meet. 3. Tell me when you should meet. (What does #1 mean, #2 or #3?) 4.She hurried up only to be late for school. 5. She hurried up, but she was late for school. 6. She hurried up, but was late for school.

    asked by rfvv
  76. english

    It’s time for a road trip! You are going to a major concert festival in another state and have found a lift there on a ride board through the concert web site. There are three other people sharing the ride with you, each from a different background and

    asked by carrie
  77. English

    I went to parent-teacher conferences, and it was not what I expected. I have learned that at parent-teacher conferences not all the parents show up. Are those sentences correct?

    asked by Pete
  78. chemistry

    Predict What would happen if 0.1M NaBr had been added to the solution instead of the Na2S solution

    asked by Anonymous
  79. Algebra II

    if 3x-y= -3 and x+5y = 15, what is the value of y ? lost here, please assist

    asked by anonymous
  80. Chemistry

    What is the concentration of OH- in a solution that contains 0.225g of NaOH in 0.250L of solution?

    asked by allison
  81. Algebra

    36^2-36x+9=0

    asked by Lisa
  82. spanish

    how to make a sentence in spanish and english in these words.La hija/tener hambre

    asked by Jennifer
  83. Calculus

    Use five iterations in Newton’s method to estimate the root of cos(2x)-2x.Use x0 = π/4 and eight decimal places.

    asked by Matt
  84. math

    sandra wrote the sequence below 2,5,10,17,... which equation represents the rule for finding the nth term of this equation

    asked by jayla
  85. english

    when and where did Euclid write the proof of the pythagorean theorem. why did the proof was written.

    asked by 000
  86. physics

    A beam of light makes an angle of θi = 7.0˚ with the normal of a slab of transparent material of t=1.00-mm-thickness. If the index of refraction of the glass is n2 = 1.40 , how far vertically (d) is the point at which the beam leaves the glass surface

    asked by matt
  87. Math- Integrated math 4.

    From the function rule h(t)=60t-16t^2+2. How do we tell from the graph and the table whe h'(t) will be positive, where it will be negative, and where it is zero.

    asked by Jasmine
  88. Phyiscs - Electro static

    Particles 1 and 2 of charge q1 = q2 = +3.20 x 10-19 C are on a y axis at distance d = 22.0 cm from the origin. Particle 3 of charge q3 = +9.60 x 10-19 C is moved gradually along the x axis from x = 0 to x = +5.0 m. At what value of x will the magnitude of

    asked by will
  89. Calculus

    t 0 3 6 9 12 v(t) 32 35 37 38 41 Using the chart above, find an upper estimate for the distance traveled using n=2 and n=4

    asked by Alice
  90. social studies

    Both Stalin in the Soviet Union and Hitler in Germany instituted ruthless campaigns against supposed enemies of the state. Why do you think dictators need to find scapegoats for their nations ill?

    asked by Sally
  91. Spanish

    Could you give me direction about what I am to do here? Am I correct at all? Preterit vs. imperfect- Choose the correct form of the appropriate verb to complete each sentence. dio, daba, tenía, tuvo, conocí, conocía, comprabas, compraba, iba, fui,

    asked by Euphoria
  92. chemistry

    Balanced equation for Oxidation-Reduction reaction for Ho2 + Cr(OH)3 = CrO4 + OH. Please show your work

    asked by Danyelle
  93. Earth Science

    Compare the general temperature and direction of flow of the current that flows off the east coast of the United States with the temperature and direction of flow of the current that flows off the west coast of the United States.

    asked by Danielle
  94. COM/155

    Academic writing standards generally condemn the use of first- and second-person pronouns such as I, me, my, you, and your. Why do you think this is the case?

    asked by Monica
  95. specific heat

    How many joules of heat are needed to raise the temputure of 10.0 g of aliminum from 22 degree C to 55 degree C, if the specific heat of aluminum is 0.90J/g degree C?

    asked by Issis
  96. Canadian

    Who is John A. Macdonald?

    asked by Justin Bieber
  97. i need help i couldnt figure this out...

    A block of mass m = 3 kg is attached to a spring (k = 35 N/m) by a rope that hangs over a pulley of mass M = 6 kg and radius R = 6 cm, as shown in the figure. Treating the pulley as a solid homogeneous disk, neglecting friction at the axle of the pulley,

    asked by samJoint
  98. Early Childhood Education

    If you accept children into your day care program at any point that room becomes available, you're implementing a(n) _______ enrollment policy. A. open B. deferred C. unorganized D. restricted I'm thinking this one is A let me know please

    asked by Heather
  99. math

    if your are going down a highway at 30 mph for 20 min how far have you gone?

    asked by tonya brockenberry
  100. Early Childhood Education

    Which of the following evaluations is most likely to be made by the director alone? A. Evaluation of the facility B. Evaluation of the caregivers C. Evaluation of the program D. Evaluation of the enrolled children I'm thinking C

    asked by Heather
  101. Math

    I need to figure out what the graph of f(x)= 1 / (2-3x)^3 near x=2/3 would look like.

    asked by Hannah
  102. Marketing

    The emergency room staff in Houston's largest hospital is surprised and pleased when a four-day Fourth of July weekend brings fewer accident victims in for treatment. They know from experience that such public holidays have high rates of accidents. For the

    asked by Ami
  103. Marketing

    Which of the following are high in search properties? clothing TV repair legal services auto repair medical diagnosis I think it is legal services i am unsure.

    asked by Ami
  104. ESL English

    What does "strike your fortune" mean?

    asked by Amanda E.
  105. Early Childhood Education

    Which of the following statements should not be included in the general principles of self-evaluation in a child care facility? A. The knowledge that a self-evaluation is taking place should be restricted to the program director. B. Self-evaluation should

    asked by Heather
  106. Algebra

    A 5 digit positive integer is a "mountain number" if the first 3 digits are in ascending order and the last 3 digits are in descending order. For example, 35 761 is a mountain number, but 32 323 and 35 655 are not. How many 5 digit numbers greater than 70

    asked by Jack
  107. Early Childhood Education

    An appropriate art activity for children 18 to 36 months of age is A. making a spatter painting. B. finger painting with shaving cream. C. doing embroidery. D. looking at a mobile. I am thinking it's B

    asked by Heather
  108. physics

    A car traveling at 22.1 m/s honks its horn as it directly approaches the side of a large building. The horn produces a long sustained note of frequency f0 = 235 Hz. The sound is reflected off the building back to the car's driver. The sound wave from the

    asked by help me
  109. Algebra II

    what is the equation for the line that passes through the point (3,5) and has slope of -3 ? can some assist me with this.? I'm having trouble figuring this out

    asked by anonymous
  110. education

    One of the aspects of instructional scaffolding is ownership which values the students own interpretations and requires them to argue for what they are saying. How does this aspect impact the teachers choices and decisions?

    asked by Nada
  111. Math

    the graph of y=10e^2k It is concave up correct? Does it have a minimum at x=o?

    asked by Hannah
  112. Macdonald

    I don't understand this He was the dominant creative mind which produced the BRITISH NORTH AMERICA ACT and the union of provinces which became Canada. As the first prime minister of Canada, he oversaw the expansion of the Dominion from sea to sea. His

    asked by Aby
  113. grammar

    Can someone please help me in figuring out how to write adjectives and adverbs in a sentence. I do not know why this is so difficult for me.... I know what each means, yet I am having trouble identifying them in sentences. Any advice is appreciated :\

    asked by Chris
  114. Chemistry

    What are the products of KOH + SO2?

    asked by Emily
  115. math

    what is the percent of 405,000 over 16,300,000

    asked by pj
  116. mythology

    do the ancient myths provide us with any clues to the rise and fall of large companies such as Enron, Exxon and BP.

    asked by Tammy
  117. Algebra

    what kind of solution does ax^2 -bx + c = 0 have if b^2 - 4ac < 0 I think an ellipse.. is this correct?

    asked by anonymous
  118. VOCABULARY STUDIES

    WHICH LATIN BASE MEANS HEAD?

    asked by AMY
  119. Math

    Find the relative minimum point(s) of f(x)=x^4/4 - x^3 -5x^2 - 10 I know you have to take the derivative but I am not sure how to do that for this problem.

    asked by Hannah
  120. algebra

    What is the positive difference in the sums of the letters in the words MATH and COUNTS, if each letter is assigned a value as folows: A=1, B=-2, C=3, D=-4,..., Y=25, Z=-26?

    asked by Sara
  121. physics

    A beam of light makes an angle of 13.0° with the normal of a mirror made of 4.70-mm-thick glass silvered on the back. If the index of refraction of the glass is 1.30, how far is the point at which the beam leaves the glass surface (after being reflected

    asked by matt
  122. math

    (-4)(5)=

    asked by davis
  123. Math

    Differentiate: f(x) = 2x-(x^2+1)^7 / 3 the answer choices are 1) f'(x) = 2-x / 3(x^2+1)^6 2) f'(x) = 2/3 - 14/3 x(x^2+1)^6 3) None of the above so the answer would number 1 correct?

    asked by Hannah
  124. statics

    A manufacturer of golf equipment wishes to estimate the number of left-handed golfers. How large a sample is needed in order to be 90% confident that the sample proportion will not differ from the true proportion by more than 2%? A previous study indicates

    asked by gg
  125. math

    express the fraction as a decimal, round to decimal place52/9

    asked by jim
  126. CALC

    f(x)= −10.4sin(3x)+8.5cos(3x) find max and min on interval ( -0.81, 1.27 )

    asked by Nicky
  127. science

    your mass is 90 kilograms. you are on the earth where the acceleration of gravity is measured at 9.8 meters/sec sec. What is your weight in Newton?

    asked by Ann
  128. Spanish

    70. Me gustan los programas de hechos de la vida real porque on muy _______. a. cariñosos b. realistas c. aburridos d. perezosos B? Thanks -MC

    asked by mysterychicken
  129. geometry

    If MN=8 and m

    asked by Anonymous
  130. grammar

    is this sentence right? Money does not bring happiness nor does material objects

    asked by Sara!
  131. Math

    I need to figure out what the graph of f(x)= 1 / (2-3x)^3 near x=2/3 would look like.

    asked by Hannah
  132. Math

    Suppose that x and y are related by the equation x^2/4 + y^3/2 = 4. Use implicit differentiation to determine dy/dx. My answer was 1/3y^2, y cannot = 0 but this is wrong.

    asked by Hannah
  133. math

    What is the sum of a 10–term arithmetic sequence where the first term is 3 and the last term is 75?

    asked by matt
  134. math

    What is the sum of a 12–term arithmetic sequence where the last term is 13 and the common difference is –10?

    asked by matt
  135. math

    What is the sum of the arithmetic sequence 22, 13, 4 … if there are 28 terms?

    asked by matt
  136. math

    What is the common difference of a 43–term arithmetic sequence where the first term is –13 and the sum is 9,374?

    asked by matt
  137. math

    When finding the sum of the arithmetic sequence 4 + 1 + –2 + –5 + –8 + –11, you will have a step of work that contains the number –3. Use complete sentences to describe how the –3 was calculated and what it means.

    asked by matt
  138. Early Chilldhood Education

    Information provided by a parent on an enrollment form can be shared with unauthorized persons only if _______ gives written consent. A. the program director B. the parent C. a staff member D. an agent from the state licensing agency I'm thinking its B i

    asked by Heather
  139. Chemistry

    How many moles of CO2can be formed from 0.045 moles of H3PO4

    asked by Shauna
  140. math

    Triangle MNO ~ Triangle MLK with LK= 3cm, NO= 12cm, LM= 6cm, and LN= 18cm Find the scale factor of the two triangles. F. 4 to 1 G. 3 to 5 H. 3 to 4 J. 1 to 5

    asked by Sommer
  141. Early Childhood Education

    The purpose of evaluating children in a day care program is to A. compare them with the other children in the program. B. have a basis for communicating with parents, schools, and professionals on children's progress. C. see how the children in your

    asked by Heather
  142. Discrete Math

    Why use mathematical induction to get the sum of a sequence? Also, if there are any websites you can recommend that will be a help too. However, I need an explanation rather than examples. Thank you for any helpful replies.

    asked by Francesca
  143. literature

    Compare various types of Realistic writing. Consider the "West" in the works of Twain, Harte, Red Cloud, and Hopkins. How do they see it differently and similarly? How do they see its potential in terms of the "American Dream"?

    asked by mallaliya
  144. math 20

    please explain how to identifyspace value given digit 4,892,736.105.

    asked by eddie narayan
  145. Math

    if f(x) = 2x^2 + 5x, find f(x+h) - f(x) / h and simplify. I started to do this but then got lost. 2(x+h)^2 + 5x + 2x^2 + 5x all over h 4x^2 + 4xh + h^2 + 5x + 2x^2 + 5x

    asked by Hannah
  146. Early Childhood Education

    Parents' feelings of guilt and anxiety about placing a child in a day care program can be relieved by A. the self-evaluation process. B. the personal interview. C. filling out enrollment forms. D. receiving a deferred enrollment. A?

    asked by Heather
  147. Accounting

    This spreadsheet assignment will require you to use multiple approaches to estimating manufacturing overhead costs for a fictitious company, including the high-low method and regression analysis This exercise will require you to perform regression analysis

    asked by jim1
  148. inorgani chemistry

    what is the limiting reagent in a mixture of 1g of Fe(NH4)2(SO2)2.6H20 and 5ml of 1M H2C2O4?

    asked by thembeka
  149. Early Childhood Education

    Role playing would be an appropriate social studies activity for A. school-agers. B. preschoolers. C. toddlers. D. infants.

    asked by Heather
  150. Math

    Each number in this sepuence is -2 times the number before. write the missing numbers: -1, 2, -4, ....., ....., 32

    asked by Emily
  151. Algebra

    What is the remainder when the sum of the first 102 counting numbers is divided by 5250?

    asked by George
  152. math

    If A = {a, b, c, d} and B = {-1, 0, 1} which of the following relations is a function from A to B. a.(i) {(a, 0), (c, 1), (d, -1)} b.(ii) {(a, -1), (b, -1), (c, 0), (d, 1)} c.(iii) {(a, 1), (b, 1), (c, 0), (d, O)} d.(iv) ({a, 1), (b, 0), (c, -1), (o.O),

    asked by michele
  153. religion

    The Middle East is the spiritual homeland for all of the following world religions EXCEPT

    asked by william
  154. Prealgebra

    What is the slope of the line, 3y=3x+21?

    asked by Mady
  155. Math

    Find the slope of e^x at x=0. The slope is 1 correct? e^0=1

    asked by Hannah
  156. Math

    find relative max or min point of 1+x+x/x My answer was 1 but I am not sure this is correct.

    asked by Hannah
  157. Algebra II

    Which of the following is a relation but not a function a)( -10,1)(1,8)(-4, 2) b) (-4, 1)(1,1)(-2,-2) c) (-5,1)(1, -7)(21, -2) d) none of these?

    asked by anonymous
  158. social studies

    When did the Civil War begin and end?

    asked by Chinomso M.
  159. spanish

    What does primos mean and what is the correct thing to put in front?un,una,une,unas,one,unos

    asked by Jennifer
  160. Physics

    In the design of a passenger bus, it is proposed to derive the motive power from the energy stored in a flywheel. The flywheel, which has a moment of inertia of 4.0 x 102 kgm2, is accelerated to its maximum rate of rotation of 3.0 x 103 revolutions per

    asked by Vertrex
  161. Ap physics

    Electric plates are 1.25cm apart, An o drop that weighs 1.1968x10^13 N is suspended between the plates when the potential differences across them is 550.0 volts. What is the electric field intensity between the plates?

    asked by Estefany
  162. Business

    Define Investment banker,stock market finacial mangement and risk finacing in your own words the idetify your preferred source of funds. Describe your decision for chosing this form of funding,

    asked by Linda
  163. science

    does LTE uses more closely spaced carriers than do both Wi-Fi and mobile WiMAX 2.0 ?

    asked by subash
  164. VOCABULARY STUDIES

    WHICH SENTENCE IS AN EXAMPLE OF HYPERBOLE?

    asked by AMY
  165. math

    -2-6

    asked by davis
  166. VOCABULARY

    WHICH LATIN SUFFIX HAS THE MEANING RESULT OF?

    asked by AMY
  167. geography

    The only other climate type besides Mediterranean that is characterized by 6 months of rain and 6 months of drought is? Having trouble finding the answer to this question.

    asked by sono
  168. Graphing

    I am plotting V/Vo vs 1/[C] and am asked to extrapolate to infinite concentration to obtain b/Vo, the intercept. How would I go about doing this?

    asked by Hank