1. Physics

    A speed trap is set up with two pressure-activated strips placed across a highway, 110 m apart. A car is speeding along at 33 m/s, while the speed limit is 21 m/s. At the instant the car activates the first strip, the driver begins slowing down. What

    asked by Sara on December 19, 2008
  2. Math

    What is the value of the missing angle? 720 120 128 138 There's a hexagon and the angles are 152 degrees 85 degrees 125 degrees 135 degrees and another 85 degrees

    asked by MyNameIsNunya on April 12, 2018
  3. maths

    Compass bearings of a carin are taken from two points A and B, 400 m apart, along a strsight north-south path, A being due north of B. the bearings of the carin from A and B are 110 degrees and 80 degrees, respectively. choose the two options which give

    asked by claire philips on May 12, 2007
  4. physics

    If instead, the swimmer makes 30.5 laps in the same pool in 3 h, determine the total distance the swimmer traveled, the swimmer's total displacement, the swimmer's average velocity, and the swimmer's average speed. -answer in km

    asked by lauren on January 21, 2012
  5. psy - revise please

    By the time people reach young adulthood, they have an idea of what causes them stress. The text discusses several sources of stress. What sources of stress did the text identify of which you were previously unaware? Has your reading helped you identify

    asked by rose-Ms. Sue on April 21, 2008
  6. Social studies

    Does having an unusual name, such as Chastity, Englebert or Moon unit, have an effect on how a child develops? The results of some previous studies agrees with the commonsense idea that such as name could cause a child to be rejected or ridiculed and thus

    asked by anonymous on April 12, 2017
  7. stats

    Education 25 t0 34 35 t0 54 55+ Total Did not complete high school 4,474 9,155 14,224 27,853 Completed high school 11,546 26,481 20,060 58,087 1-3 years of college 10,700 22,618 11,127 44,445 4 or more years of college 11,066 23,183 10,596 44,845 Total

    asked by Anonymous on February 6, 2009
  8. maths

    by selling at 77% some 9/4%shares of face value 100 and investing the proceeds in 6% shares of face value 100, selling at 110 a person got profit of 117. how many shares did he sell?

    asked by aarathy on February 27, 2016
  9. physics/calc

    An anchor weighing 110 lb in water is attached to a chain weighing 2 lb/ft in water. Find the work done to haul the anchor and chain to the surface of the water from a depth of 35 ft.

    asked by j on March 21, 2014
  10. Statistics

    Profitability remains a challenge for banks and thrifts with less than $2 billion of assets. The business problem facing a bank analyst relates to the factors that affect return on assets(ROA), an indicator of how profitable a company is relative to its

    asked by Julie Nessa on December 8, 2016
  11. Biology

    If two people with normal vision have a daughter can she be colorblind? I tought that the answer would be no because it is sex linked and the second X in women makes up for the X that is colorblind that she might have but what if they are both carriers of

    asked by Ayeisha on May 10, 2007
  12. Statistics

    In the following problem, check that it is appropriate to use the normal approximation to the binomial. Then use the normal distribution to estimate the requested probabilities. More than a decade ago, high levels of lead in the blood put 87% of children

    asked by Leatha on March 10, 2015
  13. geometry

    Please refer to the following photo to answer this question: screenshotsfirefoxcom/0F0pXhMjyyk0fnnP/brilliantorg A kite is divided into four regions by two line segments that connect the midpoints of opposite sides. Is the total blue area equal to the

    asked by unowen on November 22, 2017
  14. math

    Quadrilateral PQRS is a parallelogram. If adjacent angles are congruent, which statement must be true? A. PQRS is a square. B. PQRS is a rectangle. C. PQRS is an isosceles trapezoid. D. PQRS is a rhombus

    asked by y.m. on June 8, 2010
  15. Physics

    In a game of American football, a quarterback takes the ball from the line of scrimmage and runs backwards for 10 yards, and then sideways to the left, parallel to the line of scrimmage for 15 yards. At this point, he throws a forward pass at the angle of

    asked by John on February 2, 2012
  16. Chemistry

    Sorry for postiong twice. But I really need to know if the answers I am getting are correct; Nitrogen and oxygen react to produce nitric oxide according to the following equation: N2 (g) + O2 (g) → 2 NO (g) The equilibrium constant for this reaction is

    asked by John on March 10, 2018
  17. physics

    A football kicker can give the ball an initial speed of 25m/s. What are the greatest and least elevation angles at which he can kick the ball to score a field goal from a point 50m in front of goalposts whose horizontal bar is 3.44m above the ground?

    asked by john on April 30, 2015
  18. Physics

    If five forces act towards the same point on a body at angles of 60, 120, 180, 240 and 270 degrees and their respective magnitudes are 60N, 40N, 30N, 25N and 20N. Determine whether this system of forces is in equilibrium; find the resultant.

    asked by Chinedu on March 3, 2010
  19. Microeconomics

    When agricultural production increases , the total amount paid for agricultural products tends to a. increase because demand is price elastic b. decrease becasue deamn is price elastic c. increase because demand is price inelastic d. decrease because

    asked by Karinna on March 14, 2009
  20. math plz

    A sales manager was given a bonus of $6,350 on the year's sales of $440,000. When answering the following questions, please make sure your final answers are in percentage form and are accurate to 2 decimal places. For example 34.56%. a) What was the bonus

    asked by suvi on February 7, 2010
  21. Chemistry

    Need help with #2 & # 3 1. Record the pairs of data for pressure (atm) and volume (mL). Pressure(atm) Volume(mL) 1.000 150 mL 1.154 130 mL 1.364 110 mL 1.667 90 mL 2. Does your experimental data verify Boyle's Law? Explain. 3. What pressure would the gas

    asked by Ashley on May 14, 2010
  22. math

    An observer in a lighthouse 48.8 m above sea level saw two vessels moving directly towards the lighthouse. He observed that the angles of depression are 42 and 35 degrees. Find the distance between the two vessels, assuming that they are coming from the

    asked by Daniela on February 20, 2017
  23. Physics

    Two vectors F1 and F2 with magnitude F1=42N and F2=70N and where angle1=83 and angle2= 300. The angles are measures from the positive x axis with the counter-clockwise angular direction as positive. What is the magnitude of the resultant vector where

    asked by Melissa on November 18, 2015
  24. alg 2

    evaluate cot 11 pie/6 to the nearest hundred angle given in radians.. is there a way to put this in calculator. another ? use a calculator and inverse function to find radian measures of the given angle angles whose tangent is 4.21 is that 1.34 the answer?

    asked by jerson on June 9, 2008
  25. Math

    Determine how many triangles can be drawn. Calculate, then label, all side lengths to the nearest tenth and all interior angles to the nearest degree. a= 2.1 cm, c= 6.1 cm,

    asked by Jeremy on March 29, 2015
  26. Geometry

    A child on top of a lighthouse observes two ships that are 90 ft apart from each other. The angles of the depression of the two ships are 34º and 20º. How far is the closest ship from the base of the lighthouse? I'm sorry, I would show my work, I just

    asked by Katie on February 2, 2015
  27. geometry

    A child on top of a lighthouse observes two ships that are 90 ft apart from each other. The angles of the depression of the two ships are 34º and 20º. How far is the closest ship from the base of the lighthouse? I'm sorry, I would show my work, I just

    asked by Katie on February 2, 2015
  28. Trigonometry

    A triangle has two angles, one 90 degrees, the other (between adjacent and hypotamuse) 26 degrees, and a hypotamuse of 10ft. Find the opposite side's length. Hint: use sine. I think I'm supposed to do 10(sine26), but the answer isn't right. What am I

    asked by DeeDee on September 6, 2013
  29. physics

    A race car, starting from rest, travels around a circular turn of radius 20.8 m. At a certain instant, the car is still accelerating, and its angular speed is 0.515 rad/s. At this time, the total acceleration (centripetal plus tangential) makes an angle of

    asked by Katie on March 16, 2012
  30. chemistry

    The total acidity in water samples can be determined by neutralization with standard sodium hydroxide solution. What is the total concentration of hydrogen ion, H+, present in a water sample if 300. mL of the sample requires 7.5 mL of 2.8 10-3 M NaOH to be

    asked by lyne on March 26, 2009
  31. physics

    A racing car, starting from rest, travels around a circular turn of radius 28.9 m. At a certain instant, the car is still accelerating, and its angular speed is 0.421 rad/s. At this time, the total acceleration (centripetal plus tangential) makes an angle

    asked by LostInLouisiana on October 25, 2010
  32. chemistry

    at standard pressure, which has the highest average kinetic energy? a)H20(g) at 110 oC b)H20(s) at -10 oC c)H20(l) at 25 oC d)H20(l)(arrows going opposite directions)H20(g) at 70 oC e)H20(s)( arrows going opposite direction)H20(l) at 0 oC

    asked by Anonymous on September 26, 2011
  33. chemistry

    Copper can be determined gravimetrically by precipitation as copper(I)thiocyanate, CuSCN. A wrought aluminum-copper sample(4.5167 g) was dissolved in a minimum amount of concentrated HCl followd by the additon of 25 ml of sulfurous acid to reduced the

    asked by WILL on December 22, 2012
  34. algebra

    1. Suppose Mary deposits $200 at the end of each month for 30 years into an account that pays 5% interest compounded monthly. a. How much total money will she have in the account at the end? b. How much total money did Mary actually deposit? c. How much

    asked by beech on October 11, 2011
  35. Geometry

    Help! I'm so confused :( 1. Supply the missing reasons to complete the proof. Given: angle Q is congruent to angle T and line QR is congruent to line TR Prove: line PR is congruent to line SR Statement | Proof 1. angle Q is congruent| 1. Given to angle T

    asked by Anonymous on December 17, 2017
  36. statistics

    {Exercise 3.55} Morningstar tracks the total return for a large number of mutual funds. The following table shows the total return and the number of funds for four categories of mutual funds (Morningstar Funds500, 2008). a. Using the number of funds as

    asked by abdull on October 16, 2011
  37. Algebra 116

    1. Solve using the Elimination Method. 2r - 7s = -57 7r %2B 2s = 39 What is the solution set ______? 2. Simplify -8[-90-(-60-14)]= ______ 3. Solve using the Substition Method. 5x %2B 7y = 41 x = 61 - 8y What is the solution _______? 4. On three consecutive

    asked by MzMaria on September 30, 2008
  38. Science

    A car is traveling at 65 km/hr. The brakes are applied and the car stops in 3 seconds. What is the car's acceleration?

    asked by Lana on December 1, 2015
  39. science

    Part I: Units of Measurement for Gas Laws For the following questions, use the following answer choices to indicate what each unit of measurement is used to measure (pressure, volume, or temperature). 1. atm 2. kPa 3. L 4. oC 5. torr 6. K 7. mL 8. cubic

    asked by Alex on March 2, 2015
  40. Chemistry

    In a study of the following reaction at 1200K it was observed that when the equilibrium partial pressure of water vapor is 15.0 torr, the total pressure at equilibrium is 36.3 torr. 3Fe(s)+4H2O(g) (reversible arrows) Fe3O4(s)+4H2(g) Calculate the value of

    asked by Taasha on July 30, 2007
  41. Math sin/cos

    On a piece of paper draw and label a right triangle using the given sides, solve for the unknown side and write the trigonometric functions for angles A and B, if a=5 and c=7. I already found side b which equals 2 sqrts of 6. Now I need to find the sin/cos

    asked by Anonymous on March 10, 2007
  42. ECON

    I am working on this but, if I have part a and b wrong, all of the following question related will be wrong. Can you help me out? The market for product A has the following functions: Market demand Q=1,000-4P Market supply Q=1/2P Inverse market demand

    asked by Trisha on June 24, 2005
  43. Geometry/Algebra

    Two opposite angles of a parallelogram are (5x-2)degree and (40-x)degree. Find the measure of each angle of a parallelogram.

    asked by Anonymous on June 13, 2012
  44. Math

    The area of a triangle is 75 sq in. Calculate the possible angles formed by the triangle's 12-inch and 15-inch side.

    asked by jess on August 11, 2010
  45. Geometry

    In hexagon ABCDEF, AB = DE = 2, BC = EF = 4, CD = FA = 6, and all the interior angles are equal. Find the area of hexagon ABCDEF.

    asked by Help for this on February 12, 2017
  46. math

    asked by anonymous on October 2, 2011
  47. Mount Carmel

    In a trapezium ABCD , angleA :angleD = 3:2 and angle B : angle C = 4:5 . Find all angles of trapezium .

    asked by Yashvi on September 10, 2015
  48. pre calculus

    A force of 350 lb. is resolved into forces at right angles to one another, the angle of F2 being 67 from the 350 lb. force. Find F2.

    asked by jacob on January 2, 2019
  49. math

    One side of triangle is 10 centimetres, two angles next to that side are 30° and 60°. I need to find all three angle bisectors of triangle.

    asked by eve on January 15, 2012
  50. Math

    The angles opposite the congruent sides of an isosceles triangle are congruent find the value of X in the triangle 70

    asked by Lisa on February 4, 2019
  51. Math

    Sandra was thinking of a quadrilateral. All 4 sides are the same length and are parallel. There are 4 right angles. Which quadrilateral is she thinking of?

    asked by Isabella on February 9, 2012
  52. Math

    One angle of an isosceles triangle measures 80 degrees. Witch other angles could be in that isosceles triangle?

    asked by Courtney0 on April 25, 2018
  53. Geometry

    The m angle A is 30 more than twice angle B. If angle A and angle B form a linear pair, find the measure of both angles.

    asked by Maria on September 8, 2012
  54. college

    The measure of a third angle in an isosceles triangle is 82.5 more than the measure of the two equal angles. whats the angle of the third.

    asked by Anonymous on November 8, 2012
  55. math

    A figure has 2 sets of parallel sides and 4 right angles. All of the sides are the same length. What are the 3 names for the figure?

    asked by mythreyee on November 29, 2012
  56. biology

    Hemoglobin is a critical oxygen-carrying protein. The protein functions as a tetramer with two α-globin subunits and two β-globin subunits. Individuals homozygous for a specific single point mutation in the region that encodes the sixth amino acid in

    asked by Anonymous on May 2, 2013
  57. statistics

    The eruption height and the time interval after eruption of a geyser were measured and shown below. Height(x) 115 120 120 130 140 110 140 100 Interval after(y) 59 64 68 71 75 56 73 54

    asked by anonymous on November 18, 2013
  58. Problem Solving

    Sydnell buys a calculator that's on sale. He paid $90 not including tax. if she had purchased the calculator while it wasn't on sale, he would have paid $110 not including tax. What was the discount he received? Explain. Thanks! (:

    asked by Skyler on January 29, 2010
  59. math

    Assume a 30 month CD purchased for 2000 pay simple interest at an annual rate of 5.5%. How much total interest does it turn what is the balance at maturity. They want to know the total interest and the balance at maturity and they want us to give our

    asked by matt on January 16, 2016
  60. college algebra

    Buying and selling land. Anoa bought two plots of land for a total of $120,000. When she sold the first plot, she made a profit of 15%. When she sold the second, she losT 10%. Her total profit was $5500. How much did she pay for each piece of land.

    asked by crystal on March 22, 2009
  61. linear equation in one variables

    The organisers of an essay competition decide that a winner in the competition gets a prize of Rs 100 and a participant who does not win gets a prize of Rs 25. The total prize money distributed is Rs 3,000. Find the number of winners, if the total number

    asked by sunil on April 8, 2016
  62. math

    one candy bar contains 220 calories. If this represents 10% of the total calories a person consumes in one day, find the total number of calories consumed in a day. 220/x=10/100 cross multiply so x=2200 is this correct? thanks

    asked by Elle on October 29, 2013
  63. English

    1.)my first question is which of the quotes from henry's speech represents an appeal to the head? a. '' we are apt to shut our eyes against a painful truth, and listen to the song of that siren, till she transforms us into beasts.'' b.''has great Britain

    asked by joshua on March 10, 2018
  64. algebra

    Truck Rental Plus charges its customers based on a linear model. the table to the right depicts this data. they charge their customers $95 for using their truck for a total of 100 miles and $140 for using their truck for a total of 200 miles

    asked by Anonymous on November 29, 2017
  65. algebra

    find sales tax in your area --(6%). using tax rate, write a linear equation representing the total with tax for a purchase of x dollars. Using this equation to dtermine what the pretax cost of the item is if the total cost is $10.

    asked by sally on May 13, 2010
  66. math

    A bag of buttons contains 3 red, 4 orange, 7 green and 10 blue battens. How many orange buttons should be added so that makes up 1/4 of the total? (Remember, if you add more orange buttons, your total buttons will also increase.) Pla help due tomorrow

    asked by anne on February 9, 2014
  67. statistics

    Use the normal dist to approx the desired prob. Find the prob of getting at most 30 fives in 200 tosses of a fair 6 sided die

    asked by Sandra on October 4, 2013
  68. Science

    Why does the downhill-race bike look the way it does, what stuff does it have which normal bikes don't and what magnitude of force and dynamic loads effect the bike. please help

    asked by Bill Nye The Science Guy on March 3, 2013
  69. Algebra

    Scores on a test have a mean of 66 and Q3 is 80. The scores have a distribution that is approximately normal. Find the standard deviation. Round your answer to the nearest tenth. 10.5 18.7 20.9 9.4

    asked by Leozap on May 1, 2015
  70. biology

    Colour blindness is a recessive disorder. If a colour blind male is crossed with a normal female, what are the possible genotypes and phenotypes of the offspring

    asked by Cathy on November 6, 2014
  71. statistics

    True or False If one score is randomly selected from a normal distribution with  = 100 and  = 20, the probability of obtaining a score between X = 80 and X = 120 is 0.3413.

    asked by Lyndyc on January 6, 2014
  72. Math

    A fossilized leaf contains 21% of its normal amount of carbon 14. How old is the fossil (to the nearest year)? Use 5600 years as the half-life of carbon 14.

    asked by james on August 3, 2016
  73. stats

    the distribution of IQscores forms a normal distribution with a mean of 100 and a standard deviation of 15. what is the proportion of the population that has an IQscore greater than 130?

    asked by Anonymous on April 11, 2011
  74. Biology

    1. Why are cells from a blastula used to examine mitosis? 2. How fast do you think cells divide when an embryo is developing compared to the normal growth of an animal?

    asked by Mely on July 19, 2010
  75. statistics

    Build a 95% confidence interval for the mean of the population from the given sample data. Assume that the population has a normal distribution. 16.4, 15.7, 16.2, 15.8 17.1 15.8, 15.9, 16.0, 16.4 15.0 *please help me solve this! I have no clue what I am

    asked by Sarah on April 29, 2014
  76. statistics

    Consider a normal distribution with mean 30 and standard deviation 6. What is the probability a value selected at random from this distribution is greater than 30? (Round your answer to two decimal places.)

    asked by Anonymous on October 22, 2010
  77. statistics

    Use of normal distribution to approximate the desired probability. Find the probability of getting at least 30 fives in 200 tosses of a fair 6 sided die.

    asked by Lori on October 8, 2010
  78. statistics

    For a hypothetical normal distribution of test scores, approximately 95% fall between 38 and 62, 2.5% are below 38, and 2.5% are above 62. Given this information, (a) the mode=_____ and (b) the standard deviation=_____.

    asked by Scott F on October 26, 2011
  79. 12th grade calculus

    find the lines that are tangent and normal to th ecurve at the point given 1. 2xy+piesiny=2pie (1, pie/2) 2. x^2cos^2y-siny=0 (0, pie)

    asked by elley on October 19, 2008
  80. Statistics

    The retail price of 12-pack soda can be characterized as having a normal distribution with a mean of 3 dollars and a standard deviation of .25. Below what price do you find 30 % of all 12 packs?

    asked by Christine on September 22, 2012
  81. Vapor pressure of liquids

    benzaldehyde has a normal boiling point of 179 C and a critical point at 422C and 45.9 atm. estimate its vapor pressure at 139C.

    asked by Chem 2011 on January 25, 2011
  82. chemistry

    a liquid has an enthalpy of vaporization of 30.8 kg.mol. at 273 K it has a vapor pressure of 102 mmHg. What is the normal boiling point of this liquid

    asked by ella on February 17, 2011
  83. statistics

    a. A random sample of 25 was drawn from a normal distribution with a standard deviation of 5. The sample mean is 80. Determine the 95% confidence interval estimate of the population mean.

    asked by Sally on August 15, 2011
  84. chemistry

    a liquid has an enthalpy of vaporization of 30.8 kg.mol. at 273 K it has a vapor pressure of 102 mmHg. What is the normal boiling point of this liquid

    asked by ella on February 17, 2011
  85. chemistry

    a sample of water under study was found to boil at 102 degree celiceus at normal temperature and pressure . is the water pure

    asked by sanjeed on June 23, 2011
  86. statistics

    Assuming the resting heart rates for a sample of individuals are normal distibuted with a mean of 70 and a standard deviation of 15. Waht percentage of rates less than 70

    asked by Darlene Watson on November 12, 2010
  87. south al

    For a hypothetical normal distribution of test scores, approximately 95% fall between 38 and 62, 2.5% are below 38, and 2.5% are above 62. Given this information, (a) the mode=_____ and (b) the standard deviation=_____.

    asked by victor on March 30, 2013
  88. Chem.

    As a go through my study guide, I'm finding that I'm getting esters and normal stoic acids confused. How can you tell when a stoic acid is an ester and when its not? Or are they always the same thing? Thanks for explaining this.

    asked by Susanne on May 11, 2009
  89. Physics, ray optics

    An astronomical telescope of magnifying power 7, consist of two thin lenses 40 cm apart in normal adjustment. Find the focal length of the lenses.

    asked by Bishmay on October 14, 2016
  90. Maths

    9 is a very strange digit. Try to use four nines 9999 and normal operations plus minus multiply divide brackets etc, use 4 nines to make 100

    asked by Tim on September 13, 2013
  91. statistics

    Scores on a test have a mean of 66 and Q3 of 81. The scores have a distribution that is approximately normal. Find the standard deviation. Round your answer to the nearest tenth.

    asked by Abby on March 29, 2010
  92. chem

    The normal melting point of copper is 1357 K and heat of fusion of Cu is 13.05 KJ. How much heat, in kilojoules, is evolved when a 3.70 kg sample of of molten Cu freezes?

    asked by Joseph on February 11, 2010
  93. English/grammar

    Are the following statements correct. 1. There is/are normal DTRs noted on examination. 2. The prosthetic hardware was/were freed from the surrounding tissues and removed. Is this correct: 1. are 2. was

    asked by Cathy on November 10, 2014
  94. chemistry

    calculate the quantity of energgy required to heat 1.00 mol of aluminum from 25 degrees to its normal melting point of658 degrees

    asked by jules on April 12, 2011
  95. Algebra

    Simplify: (x^n)+(x)/(x^2)-(1) -------------------divide top by bottom (x^n+2)-(x^2)/ (x^2n)-(2x^n)+1 I can do problems similar to this if it has normal numbers but I can't do it because I am confused about the n's and the the numbers added to it. Please

    asked by Sara on July 21, 2007
  96. Chemistry

    Sorry,please ignore my earlier post. Light sensitive materials are sampled in a room with yellow lighting. How is it different from normal white light?

    asked by annie on September 14, 2010
  97. Stats

    A question on a test is answered correctly by 22% of the students find the probability that in the next 150 students there will be more than 40 correct answers use the normal distribution

    asked by Anonymous on February 10, 2014
  98. math

    A normal clock loses 3 minutes per hr and another clock gains 5 min per hr. How many hours after from now, both the clocks will show the correct time simultaneously?

    asked by aman on January 7, 2016
  99. psy- revise please

    Question: By the time people reach young adulthood, they have an idea of what causes them stress. The text discusses several sources of stress. What sources of stress did the text identify of which you were previously unaware? Has your reading helped you

    asked by rose - Ms. Sue on April 22, 2008
  100. statistics

    A normal distribution is any distribution that is not unusual. (True/False)

    asked by ann on August 20, 2011