Questions Asked on
April 21, 2014

  1. Math

    A basket contains the following pieces of fruit: 3 apples 2 oranges, 2 bannans, 2 pears, and 5 peaches. Jonas picks a fruit at random and does not replace it. Then beth picks a fruit at random. What is the probability that jonas gets a peach and beth gets

    asked by Alexander
  2. statistics

    A simple random sample of 40 items resulted in a sample mean of 25. The population standard deviation is 5. a. What is the standard error of the mean (to 2 decimals)? b. At 95% confidence, what is the margin of error (to 2 decimals)?

    asked by Vanessa
  3. math (check answer plz)

    Carol has a collection of 100 stamps the graph below shows the percentage of stamps she has from each country how many more of Carols stamps are from france than from england? France: 24%, England:22%, Norway:29%, Italy:25%.

    asked by person
  4. 7 th Math

    During exercise, the recommended maximum heart rate in beats per minute is modeled by the formula, M = 176 – 0.8A, where M is the maximum heart rate and A is the person’s age. Solve the formula for A. At what age would you have a recommended maximum

    asked by Moby
  5. English

    Indicate where each aspect of an index card should be placed when researching. Match the letter that corresponds to one of the items below to the correct location (1, 2, 3, 4, or 5) on an index card A.) Page number B.) Title of card (aspect of subject) C.)

    asked by Cassie
  6. Math ~ Check Answers ~

    1. There are 35 marbles in a bag: 9 blue marbles, 8 green marbles, 4 red marbles, 8 white marbles, and 6 yellow marbles. Find P (red). Write the probability as a fraction in simplest form, a decimal, and a percent. a.) 4/31, 0.129, 12.9% b.) 4/35, 0.114,

    asked by Chloé
  7. Math

    Which situation could you graph without connecting the points? the height of a hot-air balloon as it climbs the amount of electricity used by a refrigerator over time

    asked by Anonymous
  8. Inverse Trig

    What is the general solution to y = arcsin 0?

    asked by Annabelle
  9. math

    Jose invests $3, 250 at 6% interest compounded annually. What will be the balance in the account after 3.5 years?

    asked by Moby
  10. social studies (check answers)--Mrs.Sue

    1.D---B 2.D---C Economic globalization has had what negative impact on the Andes and the Pampas? A. increase in food production B. diversification of economies C. overfishing and more land clearing D. more job creation Brazil is best known for the A. Andes

    asked by matt
  11. Inverse Trig

    What is the general solution to y = arcsin 1?

    asked by Annabelle
  12. statistics

    How large a sample should be selected to provide a 95% confidence interval with a margin of error of 10 (to the nearest whole number)? Assume that the population standard deviation is 40.

    asked by Vanessa
  13. Science

    How many cell divisions would it take to produce at least 1,000 cells from one cell? (When one cell splits in half during cell division, the result is two new cells. Each of those cells can divide into two more and so on.) Answer (256?)

    asked by Anonymous
  14. Chemistry

    Prior to their phaseout in the 1980s, chemicals containing lead were commonly added to gasoline as anti-knocking agents. A 3.279 g sample of one such additive containing only lead, carbon, and hydrogen was burned in an oxygen rich environment. The products

    asked by Annabelle
  15. Evolution question part 2 - help!! THANK YOU!

    Narwhals are aquatic mammals known for the giant tusk that protrudes from their upper lip. These mammals live in artic waters and can spend more than three hours at a time underwater at great depths that would crush other animals. The narwhal's ability to

    asked by Sdog
  16. social studies (check answers)

    1.B 2.D 3.B 4.C 5.D 11.What contribution did Simón Bolivar and José de San Martín make to the history of the region? A. They served as prominent criollo leaders. B. They led the revolutions for independence. C. They instituted the first republican

    asked by matt
  17. Physics

    A playful college student tosses a water balloon out of his dorm window at a speed of 6.2 m/s at an angle of 10° above the horizontal. The dorm window is 11 m above ground level. 1)What is the maximum height above the ground of the balloon? 2) At what

    asked by Corey Brown
  18. Inverse Trig

    How do I simplify arcsin (sin 6 pi) given the interval 0 ≤ theta < 2pi

    asked by Annabelle
  19. geography

    what is the value of igneous rocks to humankind?

    asked by justin
  20. Computer Literacy

    1. Which vendor did IBM select to create the operating system for the IBM PC? (A) Microsoft Macintosh DEC Dell 2. Which of the following components was a significant development featured in the Macintosh LISA computer? (A) C Prompt Disk Operating System

    asked by Mariah
  21. Precalculus

    The quarterback of a football team releases a pass at a height of 7 feet above the playing field, and the football is caught at a height of 4 feet, 30 yards directly downfield. The pass is released at an angle of 35 degrees with the horizontal. The

    asked by Brittany
  22. statistics

    For a t distribution with 16 degrees of freedom, find the area, or probability, in each region. a. To the right of 2.120. (Use 3 decimals.) b. To the left of 1.337. (Use 2 decimals.) c. To the left of -1.746. (Use 2 decimals.) d. To the right of 2.583.

    asked by Vanessa
  23. Probability

    Let Sn be the number of successes in n independent Bernoulli trials, where the probability of success for each trial is 1/2 . Provide a numerical value, to a precision of 3 decimal places, for each of the following limits. 1. lim P (n/2 - 20 < Sn < n/2 +

    asked by qwerty
  24. social studies (check answers)

    1.B 2.D 3.B 4.C 5.D 11.What contribution did Simón Bolivar and José de San Martín make to the history of the region? A. They served as prominent criollo leaders. B. They led the revolutions for independence. C. They instituted the first republican

    asked by matt
  25. Probability

    For any given flight, an airline tries to sell as many tickets as possible. Suppose that on average, 10% of ticket holders fail to show up, all independent of one another. Knowing this, an airline will sell more tickets than there are seats available

    asked by qwerty
  26. maths

    laura rode her bike for 3/5/8 hours on Saturday and for 4/1/4 hours on sunday which is the best estimate of the time laura spent riding her bike on Saturday and sunday

    asked by pinks
  27. statistics

    The International Air Transport Association surveys business travelers to develop quality ratings for transatlantic gateway airports. The maximum possible rating is 10. Suppose a simple random sample of 50 business travelers is selected and each traveler

    asked by Vanessa
  28. English

    Why traditional african marriage is an advantage for men only not, women

    asked by Samuel
  29. Romeo and Juliet--Please, help me!

    Shakespeare also deviates from Aristotle's idea about the hero's recognition of the whole tragic situation. In Romeo and Juliet, it is not the hero Romeo who experiences recognition, both other characters in the play. Who are they and when does the

    asked by Victoria
  30. Physics waves- check answers please

    I am not too sure if my answers are correct. Here are the questions: 1. A student standing near a brick wall claps her hands and hears the echo 0.250 s later. If the speed of sound was 340.0 m/s, how far from the wall was she? For this question I got 85 m.

    asked by Liz
  31. MATH

    ABOUT,THE GHANA NATIONAL WEEKLY LOTTO,THE LAST TWO WEEKS RESULTS ARE

    asked by FITINI
  32. Math question

    Identify the sequence as arithmetic. geometric, or neither.. explain your answer 1.6, 0.8, 0.4, 0.2

    asked by Blake Seaborn
  33. Chemistry

    Hydrogen peroxide(H2O2) slowly decomposes to form water and oxygen gas. Calculate the mass of Hydrogen peroxide needed to obtain 0.460L of oxygen gas at STP

    asked by Madison
  34. physics

    A 0.250-kg aluminum bowl holding 0.800 kg of soup at 27.0°C is placed in a freezer. What is the final temperature if 430 kJ of energy is transferred from the bowl and soup? Assume the soup has the same thermal properties as that of water, the specific

    asked by logan
  35. Probability

    Let X be a continuous random variable. We know that it takes values between 0 and 3 , but we do not know its distribution or its mean and variance. We are interested in estimating the mean of X, which we denote by h . We will use as a conservative value

    asked by qwerty
  36. Evolution question - HELP!

    Niles Eldredge found evidence in trilobite fossils of a pattern of evolution in which short periods of large change are mixed in with longer periods of little or no change. This pattern is called_____??

    asked by Sdog
  37. Math

    Kelly borrows $5,200 on 4% interest rate for 6 months. What will that total principal+interest payment be?

    asked by INeedHelp
  38. social studies

    1. What was the Supreme Court's ruling on the Dred Scott case? (1 point)D red Scott should be considered free since he had lived in many states where slavery was banned. Dred Scott could be free if he paid a fee. Dred Scott was still a slave and not a

    asked by TTR+S<3
  39. Computer Literacy

    2. Which of the following components was a significant development featured in the Macintosh LISA computer? (C) C Prompt Disk Operating System Graphical User Interface) Memory 4. Which is NOT a function associated with a motherboard? (D) Expansion slot

    asked by Mariah
  40. Probability

    The random variables X1,..,Xn are independent Poisson random variables with a common parameter Lambda . Find the maximum likelihood estimate of Lambda based on observed values x1,...,xn.

    asked by qwerty
  41. Physics waves- check answer please

    I would like to know if my answer is correct. Thanks in advanced! A person with their head sideways in the water sees a beaver slap its tail on the lake surface 1.2 km away. What is the time difference between the sound heard in the ear listening in the

    asked by Liz
  42. Ethics in Criminal Justice

    Which of the following might help us develop open-mindedness and the virtue of tolerance? A. Recognizing that people have free will. B. Recognizing that moral norms can and often do vary by time and place. C. Developing our own sense of egoism. D. All of

    asked by Erica
  43. Math

    The quarterback of a football team releases a pass at a heights of 7 feet above the playing field, and the football is caught at a height of 4 feet, 30 yards directly downfield. The pass is released at an angle of 35 degrees with the horizontal. The

    asked by Brittany
  44. Calc

    A particle is moving along the curve y= 4 sqrt{2 x + 2}. As the particle passes through the point (1, 8), its x-coordinate increases at a rate of 5 units per second. Find the rate of change of the distance from the particle to the origin at this instant.

    asked by Lucy
  45. Math

    The minute hand of a clock is 6 inches long and moves from 3 o clock to 5 o clock. how far does the tip of the minute hand move. Express your answer round to two decimal places. Can you solve this?

    asked by Deborah
  46. 3 physics question please help quick

    Two point charges of opposite sign are brought close together. Which statement best describes the field lines of the combined point charges? (Points : 1) The field lines from the positive charge point toward the negative charge. The field lines from the

    asked by Sara
  47. physics

    A spring has a length of 0.248 m when a 0.300 kg mass hangs from it, and a length of 0.750 m when a 2.42 kg mass hangs from it. (a) What is the force constant of the spring? (b) What is the unloaded length of the spring?

    asked by bails
  48. social studies (check answers)--Mrs.Sue

    Im a little rusty on these but please bare with me and check them thanks so much 1.B 2.B 3.C 4.A 5.D Wealth disparity in Brazil results mostly from A. unequal land distribution. B. insufficient arable land. C. lack of oil and mineral resources. D. emphasis

    asked by matt
  49. Physics

    A pilot is flying from City A to City B which is 300 km [NW]. If the plane will encounter a constant wind of 80 km/h from the north and the schedule insists that he complete his trip in 0.75 h, what air speed and heading should the plane have?

    asked by Corey Brown
  50. statistics

    The Wall Street Journal reported that automobile crashes cost the United States $162 billion annually (The Wall Street Journal, March 5, 2008). The average cost per person for crashes in the Tampa, Florida, area was reported to be $1599. Suppose this

    asked by Vanessa
  51. maths

    luke rode his bicycle 2/5 of a mile from his house to the library. He then rode 1/2 of a mile from the library to the mall. Sketch a visual model to find the total distance that luke rode

    asked by pinks
  52. history

    if a positive factor for harvesting trees is encouraging local industry, a negative could be A. loss of habitat B. mining accidents C. unemployment D. water pollution I think A

    asked by Ms.sue HELP PLEASE!!!
  53. statistics

    If an instrument requires some professional judgments in scoring, then the manual should also include information on a. Interrater RELIABILITY b. Corrections of the reliability coefficients using the Spearman-Brown formula c, Both KR 20s and KR 21s d. Test

    asked by Natalie
  54. physics

    he sun radiates like a perfect blackbody with an emissivity of exactly 1. (a) Calculate the surface temperature of the sun, given it is a sphere with a 7.00 ✕ 108 m radius that radiates 3.80 ✕ 1026 W into 3 K space. K (b) How much power does the sun

    asked by epi
  55. Pre Chem

    A gas occupies a volume of exactly 500 mL at STP. What volume would it occupy at exactly 70°C and 400 mm of pressure?

    asked by Anonymous
  56. statistics

    The average cost per night of a hotel room in New York City is $273 (SmartMoney, March 2009). Assume this estimate is based on a sample of 45 hotels and that the sample standard deviation is $65. a. With 95% confidence, what is the margin of error (to 2

    asked by Vanessa
  57. URGENT Physics help

    Positively charged Object A is brought close to neutral Object B but does not touch it. The two objects begin to attract each other. What is this process called? (Points : 1) grounding charge polarization conduction repulsion 4. How many coulombs could be

    asked by Hannah
  58. Physics waves- help please

    1. A person is listening to a new instrument capable of sounds ranging from 10 dB to 150 dB and with frequencies from 12 Hz to 30,000 Hz. Comment on the suitability of this instrument for the musician or audience. 2. A guitar emits a 440 Hz tone. How far

    asked by Liz
  59. Math

    A person wants to establish an annuity for retirement purposes. He wants to make quarterly deposits for 20 years so that he can then make quarterly withdrawals of $5,000 for 10 years. The annuity earns 7.32% interest compounded quarterly. A. How much will

    asked by Anonymous
  60. chemistry - (Dr. Bob222)

    A student attempted to synthesize malonic acid which has a molecular weight of 104 g/mol by the same method used to synthesize aspirin. A titration was performed to find the equivalent weight. 0.125 g of malonic acid product was used for a titration that

    asked by Ana
  61. physics

    Two speakers are both emitting sounds, the first with an intensity level of 1 x 10^{-11} \frac{W}{m^2} and the second with an intensity of 1 x 10^{-8} \frac{W}{m^2}. What is the db level of the first? \beta = What is the difference in the decibel (db)

    asked by Anonymous
  62. physics

    a steel aircraft carrier is 370 meter long when moving through the icy north atlantic at a temperature of 2.0 degrees celsius. by how much the carrier lengthen when it is travelling in the warm mediterranean sea at a temperature of 21 degrees celsius?

    asked by sayla
  63. geometry

    Given points J (1,4), A (3,5), and R(2,1), graph JAR and its reflection image across each line `1) the x-axis 2) the y-axis 3) y = 2 I need help finding what to graph!

    asked by Clea
  64. Math

    Starting on her 21st birthday and continuing on every birthday up to and including her 65th, Jessie deposits $2,000 a year into an IRA. How much (to the nearest tenth) will be in the account on Jessie's 65th birthday if the account earns: A. 7% compounded

    asked by Anonymous
  65. Physics

    An airplane needs to fly due south. The plane can fly at a speed of 720.0 km/hr in still air. If there is a wind blowing to the northeast at 70.0 km/hr, in what direction should the plane fly to maintain its heading of due south? How long will it take to

    asked by Tyler
  66. Algebra help PLEASE?

    14, 8, -16, 32... Arithmatic. 64, 128, 256 geometric, -64, 128, -256 geometric, -48, 64, -80*** the sequence is neither geometric nor arithmatic 81, 27, 9, 3.. aruthmatic , 0,-3,-6 geometric, 0,-3,-6 geometric, 1, 1/3, 1/9

    asked by Aniston
  67. Chemistry

    using a coffee calorimeter, it is found that when an ice cube weighing 24.6g melts, it absorbs 8.19kJ of heat. calculate delta H for the phase change represented by the thermochemical equation: H2O(s) ->H2O(l)

    asked by Kera
  68. Physics waves- check answers please

    1. In a standing wave, the medium at the tip of a loop is a) showing destructive interference b) not moving c) at the original amplitude of the wave d) showing constructive interference my answer: b 2. If a motorcycle is travelling toward an observer the

    asked by Liz
  69. social studies

    1. The admission of Missouri as a slave state was controversial in the Senate because the Senate was pro-slavery. it would create sectionalism. it would upset the balance.*** the Senate was anti-slavery. 2. The main topic of the Lincoln-Douglas debates was

    asked by TTR+S<3
  70. chemistry

    How much energy is needed to melt 25.4 grams od I2?

    asked by jordan
  71. English Help Please!!! Check!!

    Memo Edit Today, Rite Properties needs to send a memo to the residents of The Plaza, an apartment complex they own. Review the memo thoroughly, then edit it for writing style (cohesion, concision, clarity, diction, and variety) AND professional tone and

    asked by Anonymous
  72. statistics

    Annual starting salaries for college graduates with degrees in business administration are generally expected to be between $30,000 and $45,000. Assume that a 95% confidence interval estimate of the population mean annual starting salary is desired. What

    asked by Vanessa
  73. Astronomy

    Rank the following hypothetical planets -- all of which have the same total mass and same radius -- from lowest moment of inertia to highest moment of inertia: 1) A uniform sphere of mixed up rock and iron 2) A hollow sphere 3) A rocky planet with an iron

    asked by qwerty
  74. math

    Mike and Teresa Garza have a monthly gross income of $5,000, but they pay $1,000 per month in taxes. They also pay $2,000 per month in various loan payments. What is their debt service ratio?

    asked by tota
  75. Economics

    1) Please provide an explanation on the saying, "Households are demanders but they are also suppliers.” 2)What factors affect an individual’s standard of living?

    asked by Anson
  76. math

    Theresa invested $5,000 in an account she expects will earn 7% annually. Approximately how many years will it take for the account to double in value?

    asked by tota
  77. Precalculus

    Find the exact value of: Cos(inverse tan 4/3 + inverse cos 5/13)

    asked by Thomas
  78. Physics

    The bulk modulus of water is B = 2.2 x 10^9 N/m2. What change in pressure Delta P (in atmospheres) is required to keep water from expanding when it is heated from 12.4 °C to 31.1 °C? I know that the equation for pressure is Delta P = Force / Area but I

    asked by Kace
  79. Radioactivity or science

    A radioactive isotope source has a mass of 120ug. If the isotope had a half life of 20s, what would be the mass if the isotope after 2 mins?

    asked by Jannet
  80. Economics

    1) Please provide an explanation on the saying, "Households are demanders but they are also suppliers.” 2)What factors affect an individual’s standard of living?

    asked by Anson
  81. Physics

    A police car stopped at a set of lights has a speeder pass it at 100 km/h. If the police car can accelerate at 3.6 m/s2, a) how long does it take to catch the speeder? b) how far would the police car have to go before it catches the speeder? c) what would

    asked by Alex
  82. chemistry

    I want to know if someone could let me know if I have written my balanced equations correct for the following questions. Write a balanced equation for the reaction of zinc with sulfuric acid. Zn + H2SO4 >>> Zn(S04) +H2 Write a balanced equation for the

    asked by jazz
  83. physics(please help! please)

    *please help ily*. a fishing pole, 2m long, is pivoted at 50cm from one end. the other end has a line with a 4 kg fish on it. what is the effort force required to land the fish?

    asked by please help
  84. Math

    What is the order of the set a={-1,20,3,17,5}

    asked by Tony
  85. Physics

    A small plane can travel at 200 km/h in still air. If a 50.0 km/h wind is coming from the east, determine the ground velocity of the plane if the pilot keeps the plane pointed [N].

    asked by Corey Brown
  86. Stats

    the typical saturday the oil change facility will perform 40 oil changes between 10 am and 12pm. treating this as a random sample, what mean oil change time would there be a 10% chance of being at or below? There is a 10% chance of being at or below a mean

    asked by Sandra
  87. Ethics in Criminal Justice

    Which of the following might help us develop open-mindedness and the virtue of tolerance? A. Recognizing that people have free will. B. Recognizing that moral norms can and often do vary by time and place. C. Developing our own sense of egoism. D. All of

    asked by Erica
  88. math

    point p and q are respectively 24m north and 7m east of point r.what is the bearing of q and p to the nearest whole number

    asked by smile
  89. physics

    A piece of iron block moves across a rough horizontal surface before coming to rest. The mass of the block is 1.8 kg, and its initial speed is 3.8 m/s. How much does the block's temperature increase, if it absorbs 69% of its initial kinetic energy as

    asked by logan
  90. chemistry

    Find the Qsp when 5 mL of 0.17 M K2 CO3 (aq) and 1 L of 0.013 M AgNO3(aq) are mixed together. The solubility product of Ag2CO3 is 6.2 × 10−12

    asked by Chemistry
  91. Math

    You want to purchase an automobile for $21,600. The dealer offers you 0% financing for 48 months or a $3,000 rebate. You can obtain 4.8% financing for 48 months at the local bank. Which option should you choose and why? (you would use the banks option to

    asked by Anonymous
  92. HISTORY

    With respect to Australia's aboriginal peoples, animistic religious beliefs are characterized by _______ worship.

    asked by Anonymous
  93. social studies 1 question!??

    10. ". . . I need not tell the brave survivors of so many hardfought battles, who have remained steadfast to the last, that I have consented to the result from no distrust of them. But, feeling that valor and devotion could accomplish nothing that could

    asked by TTR+S<3
  94. Calculus

    Limit as x approaches (pi/2)^- of (x-pi/2)*secx

    asked by T.J
  95. mathematics

    find the mean and RMS of v=25sin50πt over the range t=0 to t=20ms using integration. i have integrated to: v=-cos(50πt)/2π+c but i don't know how to get the mean and rms.

    asked by jerome
  96. Radioactivity

    A bone fragment has lost 75% of its original carbon-14. What is the age of the bone fragment? My answer is about 11 000 years but I don't know if its right

    asked by Aditya
  97. physics

    A vibrating stretched string has length 139 cm, mass 38 grams and is under a tension of 38 newtons. What is the frequency of its 5th overtone? f_{6} = If the source of the wave is an open organ pipe of the same length as the wire and the temperature of the

    asked by pauletta
  98. Chemistry

    If a balloon filled with carbon dioxide has occupies a volume of 31 L at STP, what is the mass of the gas?

    asked by Madison
  99. parallel structures

    how can i correct this sentece to parallel structute? When the movie Star Wars premiered in 1977, it was both surprising and a revolution in its special effects.

    asked by liza
  100. College Algebra

    Find an exponential growth model n(t) = Cat for the population t years since the bullfrogs were put into the pond with coordinates (0,148) (2,333)

    asked by Cameron
  101. math

    michael purchased a certain number of one stock for a total of $176. the second stock was selling for $5 less per share. michael could have bough 5 more shares of the second stock for the same amount of money. how many shares of the first stock did michael

    asked by mary
  102. math

    If a person standing 5 feet tall casts a shadow 12 feet long, then how long is a tree's shadow if a tree stands 17.5 feet tall?

    asked by anonymus
  103. physics

    What is the change in internal energy of a system that takes in 2.40 ✕ 106 J of heat, and does 4.50 ✕ 105 J of work while dissipating 9.00 ✕ 106 J of heat?

    asked by bails
  104. PHYSICS

    A point source of a wave emits 195 watts. What is the intensity at a distance of 4.56 meters? I =

    asked by joe
  105. math

    maths (integ) voltage v=25sin50πt is applied on a circuit. using integration, find mean and RMS over range t=0 to 10ms . i got it to 25/2πt^2 cos(2π/9)+c but im not sure that im going the righ way.

    asked by not a lemon
  106. Algebra

    Ramona divided his 35,000 inheritance between two investments, one paying 9% and the other 12% simple interest. is total annual income on the interest alone was 3,000. How much did he invest at 9%?

    asked by Alicia
  107. physics

    A body of mass m is suspended by two strings (right strings equals an angle a with horizontal and left an angle B with vertical. Dra the figure.

    asked by rupesh
  108. Math

    A student purchased a box of green tea mints. The nutrition label on the box stated that a serving of 3 mints contains a total of 10 calories. A) Graph the function C, where C(x) represents the number of calories in x mints. B)Write an equation that

    asked by Gabby
  109. Law

    1. What legislation provides the legal basis for today’s employment practices? A. Affirmative Action B. The Bill of Rights C. The Civil Rights Act D. The Equal Opportunity Act is it C

    asked by Amy
  110. Physics

    A catapult launches its payload at a 50.0degrees angle and the payload leaves the catapult 3.00 meters off the ground. If the payload travels 300.0 meters in the horizontal direction, what was the launch speed? At what speed does the payload hit the

    asked by TP
  111. Physics waves- check answers please

    1. In a standing wave, the medium at the tip of a loop is a) showing destructive interference b) not moving c) at the original amplitude of the wave d) showing constructive interference my answer: b 2. If a motorcycle is travelling toward an observer the

    asked by Liz
  112. physics

    Two speakers emit sounds, the one with an intensity of 3.19 x 10^{7} \frac{W}{m^2} and the other 8.64 x 10^{8} \frac{W}{m^2}. What is the difference in their intensity level? \Delta \beta =

    asked by Anonymous
  113. maths

    displacement (s) of a spring is given as s=ae^(-kt)sin2pi*f*t where t is time. determine velocity and acceleration affter 2seconds if: a=3, k=0.75 and f=20. i think im supposed to integrate but cant think how to do this one.

    asked by frederiser
  114. English

    Tom's school will have a parade for its anniversary celebration. ----------------- Is this sentence grammatical? Thank you.

    asked by rfvv
  115. Math

    The population of some countries has a relative growth rate of 2.75% per year. At this rate, how many years (to the nearest tenth of a year) will it take the population to double?

    asked by Anonymous
  116. alg.

    Find the coordinates of the vertex and the equation of the axis of symmetry of the parabola with the given equation. y = 8x2 + 48x − 3 vertex (x, y) = _____________ axis of symmetry _____________

    asked by KMILLhelp
  117. introduction to programming

    Write a program to find the sum of the series: 1/12+1/22+1/32+…..1/n2.

    asked by jamshaid
  118. ALG. REPOST TYPO

    Find the coordinates of the vertex and the equation of the axis of symmetry of the parabola given by the equation. x = −1/3y^2+4 vertex (x, y) = axis of symmetry Sketch the graph.

    asked by KELLY
  119. Language Arts

    Which of the following would most likely connect with the speaker of "Growing Pains"? A) a teen whose parents are going through a difficult divorce B) a teen who has let down one of her best friends C) a teen whose mother is often too busy to spend time

    asked by Blaire
  120. math

    Based on estimates, the town of wayne has a population of 54,000 people. Wayne has an area of approximately 25 square miles. What is the population density of wayne?

    asked by anonymus
  121. english

    What are the characteristics of an effective television newscaster? Explain.

    asked by EMMA
  122. probability

    Find the probability of seeing at most 5 dots, but also an odd number of dots when 2 fair dice are rolled.

    asked by heny
  123. trigonometry

    3 sin theta = 1.5 when 0 is less than or equal to theta is less than or equal to 4 radians

    asked by Anonymous
  124. Calculus

    Evaluate limit as x approaches 0 of: csc^2(7x)tan(2x^2)

    asked by Tim
  125. music

    Smooth, stepwise movement within a melodic phrase, subphrase, or statement is known as _______ motion

    asked by magenamanda
  126. calculus help

    Suppose that f'(x)= (2x^2-5x-12)/(3x^2-7x+2) and that f(x) is continuous for all real numbers x. a) Do a sign diagram to list the values of x where f(x) has local maximums and local minimums. In addition, list the intervals where f(x) is increasing and

    asked by Anonymous
  127. ALG.

    Find the coordinates of the vertex and the equation of the axis of symmetry of the parabola given by the equation. x = − 1-3y^2 + 4 vertex (x, y) = axis of symmetry ____ Sketch the graph

    asked by KELLYM
  128. Criminal Justice - Ethics

    When we claim that certain moral values or principles (e.g., do not steal) apply or should apply to all people, everywhere, we are saying that some values or principles are: A. descriptive B. relative C. universal D. pragmatic I think it's C Which of the

    asked by Pat
  129. Math

    Identify the solution of the system of equations -3x-4y=2 8y=6x-4

    asked by Felicia Chase
  130. math

    Mark and Juanita want to tile their kitchen floor. If the kitchen floor is shaped like a rectangle and measures 11 feet × 14 feet, how many square tiles will they need to cover the floor is each square tile measures 4 inches × 4 inches?

    asked by anonymus
  131. math

    Identify the solution of the system of equations 3x+2y=4 5x-4y=3

    asked by Felicia Chase
  132. math

    the first three terms of a GP are the first, fourth and tenth terms of an AP. given that the first term is 6 and that all the terms of a GP are different, find the common ratio.

    asked by Robert
  133. Astronomy

    Which of the following statements is correct? (check all that apply) If liquid water is not stable on the surface of Mars, liquid CO2 is definitely not stable. If liquid CO2 is not stable on the surface of Mars, liquid water is definitely not stable. If

    asked by qwerty
  134. Social Studies

    2. Pretend you're a follower of Gandhi is India under British rule. Express your desire for home rule. (Your writing must be two paragraphs.) What could I include?

    asked by Anonymous
  135. Grammar

    Since I am supposed to write in MLA format, must I underline or italicize a movie title as a title for my essay?

    asked by Victoria
  136. Moms day question

    Hi so this isn't school, but my mom and dad looks at my history, so i cannot Google this question. I am 14, and I need cheap easy mothers day ideas... Thanks, and if y'all don't wanna answer, ya don't have to.

    asked by imissbobby♥
  137. math

    Mark and Juanita want to tile their kitchen floor. If the kitchen floor is shaped like a rectangle and measures 11 feet × 14 feet, how many square tiles will they need to cover the floor is each square tile measures 4 inches × 4 inches?

    asked by anonymus
  138. Math

    What does "Larger number exceeds three times the smaller number by four" mean?

    asked by Mathew
  139. Social Studies (History)

    Why did Germany, Japan, Italy, and Soviet Union all move to dictatorship?

    asked by Natalie
  140. GEOGRAPHY 9

    6) This was issued in 1635, forbidding anyone to leave or enter Japan. a. Tang Shogunate b. Edit of Milan c. Edit of Nantes d. Edit of Japan my answer --- d am I correct?

    asked by Gen
  141. GRAPHING HELP

    Find the coordinates of the vertex and the equation of the axis of symmetry of the parabola given by the equation. x = − 1/3^2+4 vertex (x, y) = axis of symmetry Sketch the graph.

    asked by KMILLhelp
  142. algebra

    Find the equation of the circle for which a diameter has endpoints P1(-1, 4) and P2(-5, 2).

    asked by KMILLhelp
  143. Calculus

    Determine the behavior of limits A. Limit as x approaches 1 of: (log x)/((x-1)^2) B. Limit as x approaches infinity of: ((x-1)^2)/(log x))

    asked by Tim
  144. Math

    In a sliding scale of 1 ticket cost $1.00 and 6 tickets cost $5.00 and 20 tickets cost $10.00, how many tickets should you get for $100.00?

    asked by Mary
  145. English

    What kind of dash/hyphen am I supposed to use in a title like this? Hammurabi - a Person of One of the World's Oldest Civilizations

    asked by Anonymous
  146. Calculus

    What is limit as x approaches 0 of x*(2^x)/((2^x)-1))

    asked by T.J
  147. ALG

    Find the coordinates of the vertex and the equation of the axis of symmetry of the parabola with the given equation. y = 8x^2 + 48x − 3 vertex (x, y) = axis of symmetry ________

    asked by KELLY
  148. physics

    How fast does water flow from a hole at the bottom of a very wide, 7.9m deep storage tank filled with water? Ignore viscosity

    asked by bibi fathima
  149. math

    if hallie ran 1.2 miles on the school track and that is 5/8nof the distance of the track how long is the track?

    asked by Hallie
  150. math

    mr.musial traveled by car to a destination that is 1150 miles from hishome. it took him 3 days to drive to this destination. if mr.musial traveled the same distance each day, about how many miles did he travel each day? use estimation

    asked by Bella
  151. math

    If your _________, your net worth on the balance sheet would have increased from one period to the next

    asked by tota
  152. English

    What would be 3 good guide questions for The Bermuda Triangle? 1. Where do people disappear in the triangle? 2. 3.

    asked by Anonymous
  153. statistics

    Using the 95% level of confidence, what is the confidence interval for the proportion of households represented at a town meeting

    asked by Jay
  154. algebra

    What is 84 feet per hour converted into inches per minute?

    asked by kidshelp
  155. math

    At a local restaurant, you order a cheesburger that costs $3.75, an order of french fries that cost $2.95, and a small drink that costs $1.30. There is 7% sales tax added to the order. What is the total cost of your meal?

    asked by anonymus
  156. math

    If the kitchen floor is shaped like a rectangle and measures 11 feet × 14 feet, how many square tiles will they need to cover the floor if each square tile measures 4 inches × 4 inches?

    asked by anonymus
  157. Language Arts

    The measure of how much we understood and learned in a college course is referred to as:

    asked by Jackie
  158. Astronomy

    The northern plains of Mars have many characteristics that you would expect from their being an ancient ocean floor. Probably true Maybe Probably false

    asked by qwerty
  159. Astronomy

    Sometimes a crater from the Noachian period can be found inside of a crater from the Amazonian period. Probably true Maybe Probably false.

    asked by qwerty
  160. Science

    Plant Cell Analogy Cell Membrane: Security Nucleus: Boss Mitochondira: Food court Cytoplasm: Chromosomes: Vacuole: Water Ribosomes: Food Cell wall: Endoplasmic Reticulum: Chloroplasts: Golgi Appartuas: Packer What could the others be?

    asked by Anonymous
  161. english

    i have an assignment and i have already finished it. which is on writing a film review and there are 5 paragraphs to it so i already wrote the 4 paras but in the last paragraph it says you have to write two sub points and 2 descriptive evidences on how

    asked by lisa
  162. Biology

    undigested food enters the intestine called the ? chyme is this answers right

    asked by EMMA
  163. Chemistry_DRBob222! Thanks

    Thank you very much indeed for your attention and regard to my solution. Bye

    asked by Ramtin
  164. ENGish

    1. What are the characteristics of an effective television newscaster? Explain. 2. Why are so many people over the age of twenty-one entering college? Discuss. 3. What could be done to make the public less hesitant to report crime? 4. Do Americans seem

    asked by DYLAN
  165. Math

    Identify the solution of the system of equations 9x+2y=8 8x-2y=8

    asked by Felicia Chase
  166. english

    EXPLAIN WHAT YOU WANT TO BE WHEN YOU GROW UP ? THEN WRITE A LOVE SONG ABOUT SOMEONE YOU HAVE A CRUSH ON PLEASE HELP ME I DO NOT UNDERSTAND THIS I DO NOT KNOW WHAT DO TO NOW

    asked by EMMA
  167. physics

    A bullet of mass 100g is fired at avelocity 100m/s into a wooden block of mass 900g.If the bullet gets embeded into the block,then what would be the velocity of the system?

    asked by meenu
  168. math

    What is the 40th digit in the pattern 0.142857?

    asked by anonymus
  169. Calc

    When a certain type of ball falls froma height of h onto a hard level surface, it bounce straight back up to a height of kh, where k is constant with 0

    asked by Stuck in Math
  170. physics

    A sound wave has a frequency of 1640 Hz. The air temperature is 46 degress F. What is the speed? v = What is the wavelenght of the sound? lambda =

    asked by sean
  171. Inverse Trig

    Using -pi/2 ≤ y ≤ pi/2, what are the following solutions? y=arcsin root3/2 y=arcsin 1/2

    asked by Annabelle
  172. Social Studies (History)

    What were three effects of World War 2

    asked by Natalie
  173. physics

    Use the diagram below. Click to view larger size. Taking right to be positive, the speaker is moving at a velocity of 27 \frac{m}{s} while emitting a sound of frequency 1094 Hz. If the temperature of the air is ^oF, what will be the frequency that you

    asked by Anonymous
  174. physics

    A stationary speaker is emitting a sound of frequency 1330 Hz. The air has a temperature of ^oF. Taking right to be positive, a person is moving toward the source (to the left) at 8.2 \frac{m}{s}. The person will hear a frequency of ... f =

    asked by pamela
  175. math

    the equation is y=2exponent(x)+2 determine the input value if y=34

    asked by lola
  176. math

    What is the mean of the following set? 134, 298, 328, 95, 119

    asked by elizabeth
  177. Social Studies (History)

    How can Fred Korematsu be compared to Homer Plessy?

    asked by Natalie
  178. math

    input:0;1;2;3 outpu2:4;2;0;-2 wht is the formula#stressed:|

    asked by lola
  179. BIOLOGY

    undigested food enters the intestine called the ? chyme is this answers right ? PLEASE HELP ME

    asked by EMMA
  180. Science

    Plant Cell Analogy Cell Membrane: Security Nucleus: Boss Mitochondria: Food court Cytoplasm: Chromosomes: Vacuole: Water Ribosomes: Food Cell wall: Endoplasmic Reticulum: Chloroplasts: Golgi Appartuas: Packer What could the others be?

    asked by Anonymous
  181. To Drbob222

    I don't get how to get N, please show me cause I don't understand

    asked by Jannet
  182. accounting

    Cartwright inc has $1,000,000 of 10% bonds outstanding on December 31, 20x8. On January 1, 20x9 adams corp and 80% owned subsidiary of Cartright, inc purchases a $250,000 part of cartwrights inc's outstanding bonds in the market for $245,000. Interest

    asked by belinda
  183. math

    3/10 of the land is forest and wood what is the percent?

    asked by me
  184. Calculus

    Limit as x approaches 0 of x(1-cosx)/t-sinx. Confused on how to get this answer.

    asked by Tim
  185. 4th grade math

    unleaded regular - $1.89 per gallon unleaded premium - $1.94 pr gallon diesel - $2.10 per gallon Micah nows that their flower shop's delivery van uses 50 gallon of diesel a week. she estimates to the nearest dollor that they spend $600.00 on diesel each

    asked by mythreyee
  186. chemistry

    If a patient.is asministered 255ml of iv sokution how many moles of K+ do the receive

    asked by josb
  187. 4th grade math

    Bart rates to and from San Francisco international Airport from the Embarcadero hotel - $5.15 from Daly city - $4.50 from oakland airport - $5.80 from San leandro - $6.05 from richmond - $6.15 The price of BART tickets is based on the distance traveled.

    asked by mythreyee
  188. calc

    The altitude of a triangle is increasing at a rate of 1.000 centimeters/minute while the area of the triangle is increasing at a rate of 3.000 square centimeters/minute. At what rate is the base of the triangle changing when the altitude is 11.500

    asked by Lauren
  189. physics

    In the Millikan experiemnt, what error might result if only a few oil drops were used, or if all the oil drops contained an even number of charges.

    asked by Tristan
  190. Math

    A tree is 18 feet tall and casts a shadow that is 22 feet long. How fat is it from the end of the shadow to the top of the tree

    asked by Tristan
  191. Math

    Rational Equation, how do you work it out I need to check my work. x 1 x — - — = — 2 3 4 I got 4 — 3

    asked by Sadie
  192. science

    If and iron block had a lenght of 2 cm, a width of 3 cm, and a height of 1 cm and a mass of 33 g between what two liquids would it float?

    asked by Anonymous
  193. math

    The rule of 78s requires the larger amount of the interest be paid with the early payments.

    asked by blh
  194. calc

    If y^3 = 16x^2 Determine dx/dt When x= 4 and dy/dt= -1

    asked by Lucy
  195. Math

    What is S[1] for 6 – 24 + 96 – 384 + ...?

    asked by 4
  196. physics

    why salt mixed in water before keeping egg and boil it?

    asked by brb
  197. Math

    Rational Equation solve: x/2 - 1/3 = x/4 I got 4/3

    asked by Sadie
  198. math

    The box shown does not have a top. What is the surface area of the box if its length measures 12 cm, its width is 9 cm, and it has a height of 15 cm?

    asked by anonymus
  199. math

    What number can be expressed as 2cubed × 3 × 5squared?

    asked by anonymus
  200. social st

    The need for budget adjustments is indicated when

    asked by tota
  201. Math (Number Theory)

    the following two lines indicate another way to derive the formula for the sum of the first n integers by rearranging the terms in the sum. Fill in the details. 1+2+3+...+n=(1+n)+(2+(n-1))+(3+(n-2))+... =(1+n)+(1+n)+(1+n)+...

    asked by Tiff
  202. math

    Is it reasonable to state that the ratio of 8 male students to 16 female students is the same as the the ratio of 8 male students to 24 students?explain.

    asked by me
  203. finance

    On an income statement covering January 1 to June 30, _________ would not be included as income

    asked by tota
  204. maths

    howto write a problem that can be solved with the equation 5 divide 3 = x

    asked by pinks
  205. To Drbob222

    Please check my post again

    asked by Jannet
  206. math

    If a person standing 5 feet tall casts a shadow 12 feet long, then how long is a tree's shadow if a tree stands 17.5 feet tall?

    asked by anonymus
  207. Chemistry

    Use intermolecular forces to explain why alkanes with 1-4 C are gases; 5-16 C are liquids; and greater than 16 C is solid

    asked by Maria
  208. math

    What is the 40th digit in the pattern 0.142857?

    asked by anonymus
  209. math

    Point R located at (-3,4) and the point is trandlated +4 units horizontally. Where will the translated point be located?

    asked by anonymus
  210. math

    use inverse operation to solve b-16=4

    asked by Mia
  211. math

    use inverse operation to solve h/5 = 500

    asked by Mia
  212. math

    If 3x + 7 = 34, what is the value of 5x?

    asked by anonymus
  213. Physics

    An airplane needs to drop a package at a specified drop site. The airplane cruises 5.00 x 10^3 meters above the ground at 350.0 km/hr. Assuming that there is no wind blowing and that the plane is flying in a direction that will take it exactly over the

    asked by TLP
  214. Math

    How many roots does x to the 3rd power -2x to the 2nd power-13x-10=0 have

    asked by Matthew
  215. maths

    Ali went to the store to buy vegetables .He bought 16 ounce of potatoes,1.5 pounds of onions, 4 ounce of celery 1 pound of tomatoes ,and 4 ounce of garlic what is the total weight of the vegetables in pounds help me please

    asked by pinks
  216. Astronomy

    Rain was once common on Mars. Probably true Maybe/unclear Probably false

    asked by qwerty
  217. Astronomy

    In the past few million years of Mars the main source of climate variation has been the slow escape of the atmosphere. Probably true Maybe Probably false

    asked by qwerty
  218. math

    b - 16 > 4 true or false

    asked by Mia
  219. 6th grade Lang Arts

    Can you explain why the comma used in sentence 1 is not correct as compared to the comma used in sentence 2? (from homework) 1. The stadium, that my favorite team plays in, seats over 81,000 people. 2. My father, who is an excellent reader, finished a 500

    asked by Alexis
  220. "Romeo and Juliet" Summary Evaluation (Writeacher)

    You probably haven't watch the 2013 version of Romeo and Juliet, but I would like your opinions about the the writing aspect of my summary. "Directed by Carlo Carlei, the latest movie adaptation of Shakespeare's Romeo & Juliet (2013) begins with a scene of

    asked by Victoria
  221. writers craft

    this question is on writing a film review. i have to write a weakness in cinematography/story element from the movie finding forrester?

    asked by nisha
  222. Precalculus

    Sin - cos = - radical 2 I don't understand this. It wants you to make the right side equal to zero and solve

    asked by Anonymous
  223. Precalculus

    Show: sin(a-b) sin(a+b) = sin^2 a - sin^2 b

    asked by Nicole