Questions Asked on
September 6, 2013

  1. Physics

    Which of the following describe possible scenarios? A) An object has zero instantaneous velocity and non-zero acceleration. B) An object has negative acceleration and is speeding up. C) An object has positive acceleration and constant velocity. D) An

    asked by Branden
  2. physics

    Two resistors connected in series have an equivalent resistance of 783.4 Ω. When they are connected in parallel, their equivalent resistance is 171.3 Ω. Find the resistance of each resistor. Ω (small resistance) Ω (large resistance

    asked by priya
  3. PHYSICS

    An automobile battery has an emf of 12.6 V and an internal resistance of 0.0500 . The headlights together present equivalent resistance 5.60 (assumed constant). (a) What is the potential difference across the headlight bulbs when they are the only load on

    asked by priya
  4. math

    suppose that a, b, c ,and d are positive integers whose sum is 100 and a-c=5.What is the greatest possible value of ab-cd answers

    asked by noah
  5. geometry

    how to solve angle numbers?

    asked by Zackary
  6. Statistics

    The average life of Canadian women is 73.75 years and the standard deviation of the women's life expectancy in Canada is 6.5 years. Using the Chebyshev's theorem, determine the minimum percentage of women in Canada whose life expectancy is between 64 and

    asked by G.C.
  7. precalc

    Suppose the value of quantity A changes from a starting value of x to a final value of y. Write an expression using x and y that computes the resulting change of quantity A.

    asked by BeeBee
  8. macroeconomics

    Assume Felix is willing to par $8 for a Star Trek pizza cutter. Tim also wants one but would only be willing to pay $6 for it. At a Star Trek convention,Felix manages to buy the last pizza cutter at the market price. In a strange twist of fate, however,

    asked by jay
  9. 7th grade Math

    If there is a population of 800 deer what would be a good sample size and why.

    asked by Brandi
  10. science

    vector A has a magnitude of 12 units and makes an angle of 30 with the positive x-axis.vector b has a magnitude of 8 units and makes an angle of 80 with the positive x-axis.using a graphical method , find the magnitude and direction of vectors A-B

    asked by arvind
  11. geography

    write short note watercycle

    asked by gaurav
  12. Statistics (Please help!!!)

    Are there tables comparing and contrasting the following or how would you write these up? 1. Ecological Studies and Cross-Sectional Studies 2. Case control studies and Cohort studies 3. Measurement bias (aka information bias) and selection bias 4.

    asked by Joy
  13. physics

    a thin square homogeneous plate, AB=BC=CD=DA=2 m density 78 kn/m2 and thickness 10mm is suspended. A and B is fixed. if support a breaks suddenly calculate (1)instaneneous accelration of D,(2) instataneous angular acceleration op plate and (3) instateneous

    asked by sarsi
  14. STATISTICS

    True or False? A researcher is interested in studying whether there is a correlation of IQ with health. For this purpose he selected a sample of 261 people and asked them to complete two questionnaires: one for IQ and one for health. After evaluating the

    asked by Marian
  15. STATISTICS

    Researchers asked questions in 1001 randomly selected adults in Russia. We found a statistically significant, strong positive correlation between income and the number of recycling bins filled their houses per week (r = 0,77). Choose the best

    asked by Marian
  16. calculus

    int x^2/(x-2)(x^2+1)dx

    asked by grace
  17. calculus

    int e^5xsin3xdx =

    asked by favour
  18. calculus

    int cos6xcos4xdx =

    asked by favour
  19. history

    in what ways did Neolithic people dramatically improve their lives

    asked by ayan
  20. algebra

    you buy a storage rack that holds 40 cds. you have 27 cds. write an inequality that describes how many more cds you can hold. you buy 15 cds. will they all still fit?

    asked by Taylor
  21. history

    why do you think the development of agriculture ocurred around the same time in different parts

    asked by ayan
  22. calculus

    int dx/3sinx+4cosx dx =

    asked by grace
  23. calculus

    int e^5xsin3xdx =

    asked by grace
  24. calculus

    intergal xcosax^2dx =

    asked by bless
  25. calculus

    int 0^1e^2edx =

    asked by bless
  26. Geometry..... reposted ques by me

    in the diagram AB=20 cm, BC=21 cm, AD=10 cm and DE= 10.5 cm. Angles ABC and ADE are right angles. if triangle ADE is removed from triangle ABC.What is the area of shaded region that remains?

    asked by leena
  27. chemistry

    What volume of a 2.5 M stock solution of acetic acid (HC2H3O2) is required to prepare 100.0 milliliters of a 0.50 M acetic acid solution?

    asked by delacia
  28. history

    In What ways did Neolitic People Dramatically improve their lives? Please check my answer.. the change over from hunting and gathering to farming and herding took place not once but many times. Neolithic people in many parts of the world independently

    asked by ayan
  29. Physics

    how long will it take a bobsled with a velocity of 6 meters a second o stop if it decelerates at a rate of 3 meters per second?

    asked by Tiffany
  30. math

    the courier service company has found that their time of parcels to client is normally distributed with a mean of 45 minutes and a standard deviation of 8 minutes. the probability that a randomly selected parcel will take less than 48 minutes to deliver is

    asked by Anonymous
  31. physics pls help!

    1.) water is flowing through a horizontal pipe of varying crosection, the diameter is 12.0 cm at a pressure of 8.0x10^4 Pa. at section 2, the pipe has a diameter of 6.0 cm and the pressure is 6.0x10^4 Pa. find the speed of water through section 1 and 2

    asked by erjee
  32. algebra 1

    A college student is looking at her monthly checking account records. On September 1, 2008, her checking account held a balance of $1,050. At the end of March 2009, her checking account held a balance of $800. What is the monthly rate of change for the

    asked by sabina brown
  33. precalc

    A group of students drove from Lawrence, KS to Denver, CO. They passed a restaurant 111 miles from Lawrence at 10 pm and stopped at a gas station 370 miles from Lawrence at 1:45 am. Using cruise control, they maintained a constant speed driving from the

    asked by BeeBee
  34. Physics

    In the flying ski jump, a skier acquires a speed of about 62 mph (this ended up being 27.7 m/s) by racing down a steep hill and then lifts off into the air off of a horizontal ramp. Beyond the ramp, the ground slopes at an angle of 45 degrees. a) Predict

    asked by Lawon
  35. precalc

    This question is from the previous question. What was the change in distance in miles?

    asked by BeeBee
  36. math

    Why is an idea like the pacific?

    asked by luckers
  37. social

    what do the migration routes of homo sapiens reveal about their survival skills and ability to adapt

    asked by ayan
  38. precalc

    Same question from previous problem. b. As the car traveled from 309 miles from Lawrence to 352 miles from Lawrence, what was the change in time in hours? c. Define a formula that determines the distance from Lawrence in miles, d , in terms of the number

    asked by BeeBee
  39. chemistry

    An experiment requires 13.0\({\rm g}\) of cyclohexane, whose density at 25 \(^\circ {\rm C}\) is 0.7781 \({\rm g/mL}\). What volume of cyclohexane should be used?

    asked by taylor
  40. Math

    Arturo Muina is the captain of a charter fishing boat. He is paid a salary of $140 per day. He also averages tips amounting to 12% of a $475 daily charter rate. Last month during a fishing tournament, Arturo worked 22 days. What were his total gross

    asked by Kim
  41. Geometry

    Paragraph proof: in the figure AC and BD LIE IN PLANE j and BY AND CX lie on k C and D are collinear. 2.) points a c and x are coplanar. 3.) X and Y are collinear

    asked by CASSIE
  42. COMM100

    Which of the following would be an appropriate way to use the DECIDE tool in response to research suggesting that there are differences between the way men and women communicate?

    asked by Martin
  43. econ

    Assume Felix is willing to par $8 for a Star Trek pizza cutter. Tim also wants one but would only be willing to pay $6 for it. At a Star Trek convention,Felix manages to buy the last pizza cutter at the market price. In a strange twist of fate, however,

    asked by jay
  44. education

    What can you major if you have associate degree in science. What is difference between associate in science and Associate of Applied Science?

    asked by marija
  45. Geometry

    How do you segment postulates to determine congruent segments

    asked by Stephanie
  46. HELP! Geometry

    Part I 1. Why is the word coplanar included in the definition for parallel lines? 2. Explain why you think the angle pairs formed by two lines and a transversal are related. Why might it be helpful to identify them as angles that go together instead of

    asked by Unknown
  47. American Gov

    What is the primary claim made by those who oppose hate crimes legislation?

    asked by sara
  48. Algebra

    Rod and reel inc. manufactures and sells fishing rods. The company uses the equation P= 25r - 12,500 to estimate its profit P on the sale on the fishing rods. How many fishing rods were sold if the company made a profit of 125,000? Please help. Thank you

    asked by Kiki
  49. Algebra 1

    William, a logistician, needs to route a freight train that is 20 feet at its tallest point and 10 feet at its widest point within 3 days. The most direct path includes a single-track tunnel that needs 24 hour notice prior to use. If the tunnel is roughly

    asked by Taylor
  50. Physics

    A particle starts at the origin at t=0 with an intial velocity of 5.0m/s along the positive x axis. If the acceleration is (-3.0,4.5) m/s^2, determine the velocity and position of the particle at the moment it reaches its maximum x coordinate. You can't

    asked by Rebecca
  51. algebra

    1. Are the rotations of figures always congruent? Why are or why not? 2. A car tire rotates when you drive. How is this type of rotation different from a rotation in Geometry? What other type of transformation is happening to the car tire? Explain.

    asked by Unknown
  52. Math

    Simplify (tan 4X+tan 2x)/(1-(tan 4X)(tan2X))

    asked by Jackson
  53. Physics

    The drawing shows a positive point charge +q1, a second point charge q2 that may be positive or negative, and a spot labeled P, all on the same straight line. The distance d between the two charges is the same as the distance between q1 and the spot P.

    asked by Sarah
  54. Physics

    A circular surface with a radius of 0.058 m is exposed to a uniform external electric field of magnitude 1.49 104 N/C. The electric flux through the surface is 74 N · m2/C. What is the angle between the direction of the electric field and the normal to

    asked by Sarah
  55. Ancient World History

    Why did the development of agriculture ocurred around the same time in several different places

    asked by Anonymous
  56. Geography

    What is significant about the location of California and Ontario of Canada?

    asked by Anonymous
  57. health

    You can find ways to manage stress by ________. A. Getting active and eating healthy B. Pushing yourself to work harder C. Dismissing any signs of stress D. Keeping what’s causing your stress to yourself is it A??????????

    asked by vickie
  58. main ideas

    Scientists generally agree that Earth is getting warmer due to what's called the greenhouse effect. A greenhouse used for plants stays warm because sunlight and heat coming through the glass roof are mostly trapped. The heat doesn't radiate back into the

    asked by bob
  59. chemistry

    Convert 34.5 in2 to cm2. Report the answer to the correct number of significant figures. (1 inch = 2.54 cm is an exact or defined conversion.)

    asked by lisa
  60. english

    . Use two commas around “extra information” in a sentence to show that it is not important to the meaning of that sentence if taken out. For example: “The hardware store down the street, which had been paved recently, is open until midnight five days

    asked by Anonymous
  61. physics

    A ball thrown straight up from the ground passes a window 5.6 m up. An observer looking out the window sees the ball pass the window again, going down, 3.4s later. Find the velocity with which the ball was initially thrown.

    asked by Amy
  62. World History

    What do the dates reveal about the chronology of early human migration?

    asked by Anonymous
  63. Physics

    A circular surface with a radius of 0.058 m is exposed to a uniform external electric field of magnitude 1.49 104 N/C. The electric flux through the surface is 74 N · m2/C. What is the angle between the direction of the electric field and the normal to

    asked by Sarah
  64. Algebra

    Quick q if I have 2x^2+x=6 and I want to isolate x^2 would it be x^2+x/2=3 or x^2+1/2x=3?

    asked by Taylor95
  65. Physics

    Two point charges are fixed on the y axis: a negative point charge q1 = -26 µC at y1 = +0.21 m and a positive point charge q2 at y2 = +0.30 m. A third point charge q = +8.5 µC is fixed at the origin. The net electrostatic force exerted on the charge q by

    asked by Sarah
  66. social problems

    1. A researcher who wishes to become familiar with a new area of interest should use an explanatory approach.

    asked by Darlene
  67. physics

    biogy

    asked by 9876
  68. English

    1. Identify the sentences in which antecedents are used correctly. Choose several. a) We can’t go to the game on Friday because you must be a sophomore. b) I missed the bus because I woke up late. (This is my choice) c) The store hours can be obtained by

    asked by Anonymous
  69. Geography

    What factors might account for the per capita incomes of Colorado, Delaware, Maryland, Massachusetts, New Jersey, and New York of the United States and Yukon Territory, Ontario, and Northwest Territories of Canada? My answer: The factors which may account

    asked by Anonymous
  70. MATH I NEED HELP PLEASE

    1. Which of the following conclusions is true about the statement below? A. The statement is never true. B. the statement is true when x =0. C. The statement is true when x is negative. D. The statement is always true. My answer was B. 2. Solve for x in

    asked by Queta
  71. math 4th grade

    I have to follow the pattern .125, .25, .375, .5 ?

    asked by judy
  72. physics

    During the second stage of a rocket launch the rockets upward velocity increases from 980 m/s to 9000 m/s with an average acceleration of 33 m/s*. How long did the acceleration last??

    asked by Kenny
  73. budgeting and forecasting

    Paint Sales Time Series Week Sales (000’s of gallons) 1 6 2 8 3 10 4 9 5 11 6 12 7 10 8 8 9 7 10 9

    asked by jr
  74. World History

    How did Neanderthals and Cro-Magnons differ from earlier people?

    asked by Anonymous
  75. English

    1. What type of context clue is provided for the italicized word in the following sentence? "The ice, snow, freezing wind, deep ice cracks, called crevasses (this is italicized), and lack of oxygen are constant threats to climbers’ safety and health." a)

    asked by Anonymous
  76. Physics

    A police radar has an effective range of 1.0 km, and a motorist's radar detector has a range of 1.9 km. The motorist is going 100km/h in a 80km/h zone when the radar detector beeps. At what rate must the motorist decelerate to avoid a speeding ticket?

    asked by Amber
  77. Algebra

    Factor x^4+64

    asked by Marina
  78. literature

    HELP PLEASE!!! Can you state the aspect of style revealed in this quote so I can write a paper? "Clyde if I could only die. That would solve all this. And I have prayed and prayed that I would lately, yes I have. For life does not mean as much to me now as

    asked by Mark
  79. Algebra

    x-2/3 + x-3/2 Please help. Thank you

    asked by Kiki
  80. physics

    In a game against the White Sox, baseball pitcher Nolan Ryan threw a pitch measured at 34.4 m/s. If it was 18.4 m from Nolan's position on the pitcher's mound to home plate, how long did it take the ball to get to the batter waiting at home plate? Treat

    asked by chris
  81. Literature

    HELP PLEASE!!! Can you state the aspect of style revealed in this quote so I can write a paper? "Clyde if I could only die. That would solve all this. And I have prayed and prayed that I would lately, yes I have. For life does not mean as much to me now as

    asked by Mark
  82. biology

    Methyl mercury is a toxic substance that can harm the nervous system. Some fish are contaminated with high levels of methyl mercury. In many places, these fish are an important food source. Experiments are being conducted to determine how many meals of

    asked by loli
  83. History (Western Civilization)

    Explain the importance of the Hebrews to the development of western civilization including the ideas of monotheism, the covenant, the Torah and Christianity. - Can someone briefy explain to me? I am searching through goggle but can not find the right

    asked by C.J
  84. Algebra 1 (Steve)

    In a diving siblings showcase, 11yr old Hannah takes off from a 24.61 foot platform with an initial velocity of 9.7 ft/sec at the same time that her brother Tyler, who is older takes off from a 32.81 foot platform with an initial velocity of 4.51ft/sec.

    asked by Taylor95
  85. gg

    you need 50 pounds of two commodities costing $1.25 and $1.26 per pound,verify that the total cost is y=1.25x+1.60(50-x),where x is the number of pounds of the less expensive commodity.

    asked by Anonymous
  86. Math

    3^4 /3^3 + 4^2 *4^0/2^4 Please help and explains how you got the answer. I have been stuck on this for awhile and am not sure how to do this. Thank you!

    asked by Cherie
  87. english

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

    asked by Tay
  88. physics

    A stone is dropped from the roof of a building; 1.60s after that, a second stone is thrown straight down with an initial speed of 26.0m/s , and the two stones land at the same time. part a. How long did it take the first stone to reach the ground? part

    asked by alison
  89. Algebra

    Please help with this factoring problem: 2x^3/2 − 6x^1/2 + 4x^−1/2 what i did first was make all the exponents whole numbers, so I got: 4x^3-36x+16x^-1 I don't know what to do from there.

    asked by Maria
  90. english

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

    asked by Tay
  91. math

    Pat worked 43 hours and received $7.25 per hour for regular pay and time-and-a-half for all hours over 40 hours. What were her weekly earnings?

    asked by aj
  92. Geography

    What relationship do these figures, states and provinces or territories with high mortality rates, appear to have to the urban/rural population ratio?

    asked by Anonymous
  93. health 5 grade

    i need help in health subject for my son 5 grade Question 1- connect suppose you have a cold. this affects your physical health. does if affect your mental,emotional,family, and social health, too? explain why or why not. Question 2- practice healthful

    asked by niki
  94. Accounting

    Annual interest of 5% paid if balance exceeds 800, $7 monthly fee if account falls below minimum balance, average monthly balance $1,160, account falls below $800 during 5 months. What is the annual net cost of this checking account?

    asked by Tiffany
  95. math

    Fran Mallory is married, claims five withholding allowances, and earns $3,500 (gross) per month. In addition to Federal income tax (FIT), social security, and Medicare withholding, Fran pays 2.1% state income tax, and ½% for state disability insurance

    asked by need help!!!!
  96. Science

    You walk into the kitchen and see a broken egg on the floor. Which of the following is an inference you can make based on this observation? a) The egg rolled off the kitchen counter b) the dog will eat the egg off the floor c) there are pieces of broken

    asked by Anonymous
  97. algebra

    Please help me figure this out: consider f(x) = -6x -1 and g (x) = 4x^2 solution for (f+g)(x)

    asked by Alaska Diamond
  98. 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
  99. algebra

    please help me: consider f(x) = -6x-1 and g(x) = 4x^2 figure the solution for (fg)(x)

    asked by Alaska Diamond
  100. algebra

    please help me figure this select x-coordinate of the vertex of the parabola defined by the function f(x) = -5x^2 + 9x + 2

    asked by Alaska Diamond
  101. algebra

    please help me determine the equation of g(x) that results from translating the function f(x) = x^2 + 3 upward 7 units

    asked by Alaska Diamond
  102. algebra

    please help me determine this the equation of g(x) that results from translating the function f(x) = (x+8)^2 to the right 9 units.

    asked by Alaska Diamond
  103. Science

    A chemist notes that a solution turns blue when a chemical reaction takes place. Which of the following correctly describes the chemist's data? a) it is a qualitative observation. b) is is a quantitative observation. c) it is a prediction. d) it is a

    asked by Anonymous
  104. calculus 2

    Integral of 63x(cos(x))^2 dx I got: 63x^2/4 +63sin(2x)/4 +63cos(2x)/8 +C I keep getting this answer but the online site says it's wrong.

    asked by Anonymous
  105. Science

    On a hot summer day, you notice a line of dark clouds forming. Based on this observation, you go back inside and get an umbrella. What scientific skill have you used? a) classification b) prediction c) communication d) quantitative observation I think it

    asked by Anonymous
  106. Science

    A biologist determines that a lizard's body temperature is 29 degrees C. Which of the following correctly describes the biologist's data? a) it is a qualitative observation b) it is a quantitative observation c) it is a prediction d) it is a classification

    asked by Anonymous
  107. Psychology

    1.Do axons and dendrites meet at synapses? True 2. Does perception take place in the corpus callosum? False 3. One of the drawbacks of breast feeding is that the quantity of breast milk produced is not adjustable. for example it may be difficult for a

    asked by Lisa
  108. chem

    Suppose you have two 100mL graduated cylinders. In each cylinder, there is 36.0mL of water. You also have two cubes: one is lead, and the other is aluminum. Each cube measures 3.00cm on each side. After you carefully lower each cube into the water of its

    asked by Debby
  109. calculus

    int -1,0x^3dx =

    asked by bless
  110. calculus

    int 7/(2x-5)dx =

    asked by bless
  111. calculus

    Determine l= 2e^xdx, given that l=50.2, when x=3

    asked by grace
  112. computer science

    Write the " 7−2" expression so that no answer includes negative exponents. Assume the variables are nonzero

    asked by bob
  113. calculus

    find the area enclosed between the x-axis and the curve, if y=x^3+2x^2+x+1 between x=-1 and x=2

    asked by grace
  114. calculus

    find the area enclosed between the x-axis and the curve, if y=x^3 and the straight line y=x

    asked by grace
  115. calculus

    find the area enclosed between the x-axis and the curve, if y=x^2-25 for (-5) is less than or equal to x less than or equal to 5

    asked by grace
  116. math

    what is the net price factor for trade discounts of 25/15/10? using the net price factor you found in the previous question to find the net price of a couch listed for $800.

    asked by chell
  117. algebra 2

    a bag of fertilizer claims that it will cover 5000 square feet of grass if you front yard is 1450- feet wide and 65 feet deep and you back yard is 150 feet wide and 225 feet deep how many bags of fertilizer will you nee to fertilize your entire back yard?

    asked by jordyn
  118. algebra 2

    a bag of fertilizer claims that it will cover 5000 square feet of grass if you front yard is 150 feet wide and 65 feet deep and you back yard is 150 feet wide and 225 feet deep how many bags of fertilizer will you need to fertilize your entire back yard?

    asked by jordyn
  119. math

    A professor wants to supplement her pension with investment interest. If she invests $26,000 at 7% interest, how much more would she have to invest at 9% to achieve a goal of $4,160 per year in supplemental income?

    asked by lori
  120. physics

    In the rectangle in the drawing, a charge is to be placed at the empty corner to make the net force on the charge at corner A point along the vertical direction. What charge (magnitude and algebraic sign) must be placed at the empty corner? (the rectangle

    asked by Sarah
  121. Math

    A rectangular rice land is to be fenced along 4 sides and in the middle to divide it into to 2 equal areas. If 200m of fencing is available, what is the maximum area to be fenced?

    asked by Khelany
  122. Physics

    A circular surface with a radius of 0.058 m is exposed to a uniform external electric field of magnitude 1.49 104 N/C. The electric flux through the surface is 74 N · m2/C. What is the angle between the direction of the electric field and the normal to

    asked by Sarah
  123. Math

    The length of a piece of cardboard is two inches more than its width. an open box is formed by cutting out 4 inch squares from each corner and folding the sides. If the volume of the box is 672 cubic inches, find the dimensions.

    asked by Khelany
  124. Physics

    Suppose a single electron orbits about a nucleus containing two protons (+2e), as would be the case for a helium atom from which one of the two naturally occurring electrons is removed. The radius of the orbit is 2.65 10-11 m. Determine the magnitude of

    asked by Sarah
  125. math probability

    you roll 2 dice. what is the probability that at least one of them is a 6.

    asked by Bec
  126. calculus

    integrating e^1/3dx i got 3e1/3 +c pls am i right

    asked by Jane
  127. English

    What is the simple subject of the following sentence: A large number of swimmers competed in the race.

    asked by Kathy