Questions Asked on
March 17, 2014

  1. Math

    a citizens group wants to determine people's opinions about a new road. The members of the group conduct a survey at the largest part of the mall in the city. Which best describes the sampling method used by the citizens' group? A.) convenience sample B.)

    asked by Cassie
  2. Physics

    A pump is required to lift a mass of 750kg of water per minute from a well of depth 13.2m and eject it with a speed of 17.4m/s. A) How much work is done per minute in lifting the water? B) How much in giving the water the kinetic energy it has when

    asked by Garrett
  3. Physics

    A basketball player is running at 5.00 m/s directly toward the basket when he jumps into the air to dunk the ball. He maintains his horizontal velocity. (a) What vertical velocity does he need to rise 0.750 meters above the floor? (b) How far from the

    asked by Sam
  4. Physics

    An automobile with 0.310 m radius tires travels 85,000 km before wearing them out. How many revolutions do the tires make, neglecting any backing up and any change in radius due to wear?

    asked by Sam
  5. Physics

    At the point of fission, a nucleus of 235U that has 92 protons is divided into two smaller spheres, each of which has 46 protons and a radius of 5.11 ✕ 10-15 m. What is the magnitude of the repulsive force pushing these two spheres apart?

    asked by bro
  6. intro to comp

    You need to install an operating system on a computer that will be sharing files for the company employees. You estimate there will be as many as 15 users accessing these files at one time. Which operating system below is ideally suited for this machine?

    asked by sj
  7. math

    The box-and-whisker plots show data for the test scores of four groups of students in the same class. Which plot represents a group with a median grade below 65?

    asked by Kyla
  8. Physics

    In lacrosse, a ball is thrown from a net on the end of a stick by rotating the stick and forearm about the elbow. If the angular velocity of the ball about the elbow joint is 30.0 rad/s and the ball is 1.05 m from the elbow joint, what is the velocity of

    asked by Sam
  9. Science asap

    Which organisms are capable of converting gaseous nitrogen in the air into a form that other living organisms can use? nitrogen-fixing bacteria denitrifying bacteria decomposers producers Which step in the nitrogen cycle is accelerated at the beginning of

    asked by anonymous
  10. Science

    There is a theoretical protein called largeX that helps to stimulate growth of the body during adolescence. The promoter on the lrgX gene that codes for it is normally able to have a protein bind to it that promotes transcription called largene. Largene,

    asked by Science
  11. algebra 1

    During the lunch rush, the "catch of the day" is ordered 24 times. If the number of "catch of the day" orders represents 2/9 of the total lunch orders x, which equation could be used to determine the number of lunch orders taken that day?

    asked by Alissa the great
  12. English

    Which literary writing style uses humor to comment on serious subject matter? Answers are Satire Essay Tragedy Allegory Thanks

    asked by snow
  13. 4th Grade Math

    Mike drank more than half the juice in his glass. What fraction of the juice could Mike have drunk?

    asked by Kianie
  14. social studies

    1.why must omar and his brothers work in the mines? A.they cannot attend school B.their mother cannot support them C.they have no other job prospects D.they do not know another trade

    asked by dalia
  15. chemistry

    8.22 g of CuNO3 is dissolved in water to make a 0.590M solution,what is the volume of the solution

    asked by Nicholas
  16. Physics

    A factory worker pushes a 29.2kg crate a distance of 4.1m along a level floor at constant velocity by pushing downward at an angle of 28 degrees below the horizontal. The coefficient of kinetic friction between the crate and floor is 0.25. (a) What

    asked by Garrett
  17. physics

    A potter's wheel is rotating around a vertical axis through its center at a frequency of 1.8rev/s . The wheel can be considered a uniform disk of mass 4.7kg and diameter 0.34m . The potter then throws a 3.1kg chunk of clay, approximately shaped as a flat

    asked by Joe
  18. Physics

    Suppose you pluck a string on a guitar and it produces the note A at a frequency of 440 Hz. Now, you press your finger down on the string against one of the frets, making this point the new end of the string. The newly shortened string has 4/5 the length

    asked by Erin
  19. chemistry

    The Henry's law constant for CO2 at 20°C is 3.7*10^-2 M/atm. What mass of CO2 (in grams) is present in 355 mL of soda drink if the pressure of CO2 in the can is 2.5 atmospheres at 20°C? (Assume the solubility of CO2 in the soda is the same as water)

    asked by Ellen
  20. geometry

    If the width and height of a rectangular prism are each shrunk to one seventh of the original size but the length remains the same, what is the formula to find the modified surface area?

    asked by khun
  21. Physics

    An archer shoots an arrow at a 78.0 m distant target, the bull's-eye of which is at same height as the release height of the arrow. (a) At what angle must the arrow be released to hit the bull's-eye if its initial speed is 34.0 m/s? (Although neglected

    asked by Sam
  22. Physical Science

    A sample of gas has its number of molecules halved, its Kelvin temperature doubled, and its volume halved. What is the new pressure, relative to the original pressure?

    asked by jasmine
  23. Chemistry

    Dissolving solid CaCl2 H2O in a large volume of water is endothermic to the extent of 14.6 kj/mol. Also given: CaCl2(s)+6H2O(l)->CaCl2* 6H2O(s) delta H = -97.0 kj what is the heat of solution of anhydrous CaCl2 in a large volume of water?

    asked by Ann
  24. physical science

    Green light has a frequency of about 5.3Hz~10Green light has a frequency of about 5.3Hz~ 10^{14}. Using the relationship speed of light (c)=fƒÉ find its wavelength in air.

    asked by ashley
  25. Trigg

    In a predator/prey model the predator population is modeled by the function y=1000 sin (2t) +400. What is the smallest population according to this model?

    asked by Jenny
  26. English

    The literary device of foreshadowing is used in which of the following excerpts ? Answers are They're spoiled and we're spoiled Those screams and they sound familiar I have a feeling it'll be africa again before then They're not old enough to do that alone

    asked by snow
  27. Physics

    A hammer of mass M is moving at speed v0 when it strikes a nail of negligible mass that is stuck in a wooden block. The hammer is observed to drive the nail a distance L deeper into the block. A) Find the magnitude F of the force that the wooden block

    asked by Garrett
  28. statistics

    a machine has 0.04 probability of producing a defective item. If it produces 6 items find: a. probability none is defective b. at least one is defective c. all are defective

    asked by tiffany
  29. John

    Are these correct? My answers are marked with *** Thank you. 1. ¿Qué han hecho Uds. hoy? ***Han trabajado en la oficina. Hemos caminado al parque. No lo hemos hecho. Sí, lo han hecho. 2. ¿Habéis vuelto de vacaciones? No, hemos decidido quedarnos una

    asked by Spanish
  30. social studies(updated answers)---Mrs.Sue

    1.A 2.C 3.A 6.D 9.B 1. why do most people live in the western part of colombia? A. to enjoy the cooler climate of the mountains B. to be closer to the border with venezuela C. to live along the pacific coast D. to benefit from the country's lush rain

    asked by Kayla
  31. Dynamics

    The man slides the 100-kg crate across force of 200 N. If the crate was initially at rest, how far will the crate move before its speed is 1 m/s? The coefficient of kinetic friction between the crate and the floor is 0.18. The man is pulling the crate at a

    asked by Ivan
  32. English

    What does the balded word mean? The PORTENTOUS actor stood up to receive the award, even though his name hadn't yet been called. A.) arrogant************************* B.) confident C.) excited Answer: 1.) A

    asked by Cassie
  33. help ASAP Statistic

    The tests done to determine if someone is HIV positive are called Enzyme immunoassay or EIA tests. The test screens a blood sample for the presence of antibodies to HIV. Like most tests, this test is not perfect. The table below shows the approximate

    asked by helen
  34. math

    An isosceles triangle of sides 13cm, 13cm, 10cm is inscribed in a circle. What is the radius of the circle?

    asked by abigail
  35. Math

    1. Suppose you want to buy concrete for a 36ft by 24 ft by 9 in. patio. If concrete costs $55/yd^3, how much will the concrete for the patio cost? 2. A cylinder has a volume of about 500 cm^3 and a height of 10 cm. What is the lenght of the radius to the

    asked by Gavin
  36. Physical Science

    An ice tray with 175 g of water at 30°C is placed in a freezer at –9°C. How much energy must be removed from the water to lower its temperature to the freezing point?

    asked by jasmine
  37. physics

    the frequency of wave A is 250 hertz and the wavelength is 30 cm. the frequency of wave B is 260 hertz and the wavelength is 25 cm. which is a faster wave?

    asked by sara
  38. math

    Calculate the slant height for the given cone. Round to the nearest tenth. Diameter = 8cm height = 9 cm 10.2 cm 11.4 cm 9.8 cm 12.0 cm****

    asked by person
  39. Physics

    A truck with 0.100 m radius tires travels at 24.0 m/s. At how many radians per second are the tires rotating? What is this in rpm?

    asked by Sam
  40. Spelling

    What does VCCV and VCV mean in 4th grade words?

    asked by Melissa
  41. help ms sue lang arts

    For Questions 1–6, read the play excerpt below and answer the questions that follow. Jaws of the Water ACT TWO At rise we see DAD, TINA, and MARK rushing in and out of the living room. Each enters carrying important items—such as sleeping bags, rain

    asked by josh
  42. Dynamics

    A linear spring of stiffness k is designed to stop the 20-Mg railroad car traveling at 8 km/h within 400mm after impact. Find the smallest value of k that will produce the desired result.

    asked by Ivan
  43. math

    The tail of neil's dog is 5 1/4 inches long. This length is between which two inch marks on a ruler?

    asked by Anonymous
  44. Science

    A factory worker pushes a 29.2kg crate a distance of 4.1m along a level floor at constant velocity by pushing downward at an angle of 28* below the horizontal. The coefficient of kinetic friction between the crate and floor is 0.25.

    asked by Garrett
  45. Science

    Which of the following happens when a low-mass star runs out of fuel? Choose all that apply. A. Its core becomes a white dwarf B. Its outer layers form a nebula, or vast cloud of gas and dust C. its outer layers expand, and the star becomes a red giant D.

    asked by Alaska
  46. physics

    A convex spherical mirror has a focal length of -20 cm. An object is placed 30 cm in front of the mirror on the mirror's axis. Where is the image located? Answer 12 cm in front of the mirror 60 cm behind the mirror 60 cm in front of the mirror none of the

    asked by shirly
  47. social studies(updated answers)---Mrs.Sue

    6.C 6.How did European rule in South America change the people of the continent? A. European missionaries introduced religion. B. European colonists brought diseases that killed millions of natives. C. European conquistadors incited conflict on the

    asked by Kayla
  48. algebra

    Forest ranger measure depth of 82 inches of snow on a mountain peak at 8am. Snow is expected to fall at a steady rate of 3/4 inch per hour. write an equation that approximates the depth "y" of snow on the mountain peak "x" hours after 8am.

    asked by stephen
  49. language arts

    Need to confirm if the verbs in the sentences are physical or mental actions: 1. Other Americans in the Olympics challenged their opponents, too. Mental 2. Wilma dazzled the crowds in the track & field competition. physical 3. Al Oerter, an American discus

    asked by cee
  50. English: Ms. Sue

    Ms. Sue, these are the only 3 possible choices. What does the balded word mean? The PORTENTOUS actor stood up to receive the award, even though his name hadn't yet been called. A.) arrogant************************* B.) confident C.) excited Answer: 1.) A

    asked by Cassie
  51. math

    An isoscelless triangle of sides of 13cm, 13cm, 10cm is inscribed in a circle is inscribed in a circle. What is the radius of the circle?

    asked by abigail
  52. Chem.

    To standardize a solution of NaOH, one uses a primary standard called potassium hydrogen phthalate (KHP). It is a monoprotic acid. It has a molar mass of 204.33g/mol. Suppose you weigh out .556g of KHP and dissolve it in water. It requires 14.48 mL of NaOH

    asked by Anonymous!
  53. math

    a 15 foot ladder is placed against a vertical wall of a building with the bottom of the ladder stand on level ground 12 feet from the base of the building. How high up the wall does the ladder reach?

    asked by anonymous
  54. statistics

    A clinical trial test a method designed to increase probability of conceiving a girl.In study 375 were born and 300 were girls Use sample data to construct 99%confidence interval of percentage girls born

    asked by Martha
  55. Physics

    You throw a 20-N rock vertically into the air from ground level. You observe that when it is a height 14.8m above the ground, it is traveling at a speed of 25.0m/s upward. A) Use the work-energy theorem to find its speed just as it left the ground. What is

    asked by Garrett
  56. math

    In a recent poll of 2000 households, 29% had pets. How many households did not have pets?

    asked by sam
  57. physics

    What is the ratio of the speed of sound in air at 0°C to the speed at 100°C?

    asked by shirly
  58. Chem

    A balloonist is preparing to make a trip in a helium-filled balloon. The trip begins in early morning at a temperature of 15 degrees C. By midafternoon, the temperature has increased to 30. degrees C. Assuming the pressure remains constant at 1.00atm, for

    asked by Amber
  59. math

    When you round 94,872 to the nearest ten thousand = 90,000, then round to the nearest thousand = 95,000. What do you notice about your answers ? Explain

    asked by gabe
  60. algebra 1

    On a restaurant sign, 14 light bulbs must be replaced. These light bulbs represent 3/8 of the total number of light bulbs on the sign. If b represents the total number of light bulbs, which equation could be used to determine the value of b?

    asked by alibaba
  61. 2 LA questions pls help!!!

    1. Which words clue the reader about the compare-and-contrast organization in the opening paragraph of "The Next Big Thing"? (1 point) "pros and cons" "for example" "what it led to" 2. Which of the following notes in the section titled "Television" is the

    asked by sonamy4eva
  62. Chemistry

    What is the percent KCL by mass in a 3.00 molal solution?

    asked by Ann
  63. dynamics of catering

    It's sometimes permissible to eat _____ with your fingers. A.fried clams B.soft boiled eggs C.hot dogs D.asparagus

    asked by val
  64. Physical Science

    On a winter day the temperature drops from –5°C to –15°C overnight. If a pan sitting outside contains 0.49 kg of ice, how much heat is removed from the ice for this temperature change?

    asked by jasmine
  65. math

    how many bows can you make from 3 and 2/3 meters of ribbon if 1/4 th of ribbon makes one bow?

    asked by nessy
  66. language arts

    Need to confirm if the verbs in the sentences are physical or mental actions: 1. However he won only 2 medals --Physical 2. Spitz also teamed with three other Americans in 3 relay races - Physical 3. In total, Spitz won s7 gold medals in a single

    asked by cee
  67. PHYSICS

    You throw a 20-N rock vertically into the air from ground level. You observe that when it is a height 14.8m above the ground, it is traveling at a speed of 25.0m/s upward. A) Use the work-energy theorem to find its speed just as it left the ground. What is

    asked by Garrett
  68. Statistic help ASAP Please

    The tests done to determine if someone is HIV positive are called Enzyme immunoassay or EIA tests. The test screens a blood sample for the presence of antibodies to HIV. Like most tests, this test is not perfect. The table below shows the approximate

    asked by Helen
  69. Chemistry

    Dissolving solid CaCl2 H2O in a large volume of water is endothermic to the extent of 14.6 kj/mol. Also given: CaCl2(s)+6H2O(l)->CaCl2* 6H2O(s) delta H = -97.0 kj what is the heat of solution of anhydrous CaCl2 in a large volume of water?

    asked by Ann
  70. English

    1. May I have a glass of water? 2. May I drink a glass of water? 3. May I take a glass of water? (Does #1 mean #2 or #3?)

    asked by rfvv
  71. Business Algebra

    You invest $20,000 in two accounts. Account A earned 4.5% annual simple interest and Account B earned 6% annual simple interest. the total amount of interest earned for 1 year was $987.50, how much was invested into each account?

    asked by Josh
  72. Statistics

    A standard pack of 52 cards consists of 4 suits, hearts, diamonds, clubs and spades. Each suit has 13 cards, from Ace to King. We deal randomly 5 cards from the deck of 52. 2 deals differing only by the order are considered the same. How many different

    asked by Please Help
  73. chemistry

    Combustion analysis of a hydrocarbon produced 33.01 g {\rm CO}_2 and 27.04 g {\rm H}_2{\rm O}. Calculate the empirical formula of the hydrocarbon. Express your answer as a chemical formula.

    asked by david
  74. math

    Suppose that people's heights (in centimeters) are normally distributed, with a mean of 170 and a standard deviation of 5. We find the heights of 80 people. (You may need to use the standard normal distribution table. Round your answers to the nearest

    asked by wanda
  75. chemistry

    A laboratory instructor gives you a test tube containing Ag+ ,Ba 2+ , and Cu 2+ ions. Devise a reaction scheme that would allow you to selectively precipitate each of these ions. Write a balanced net ionic equation for each precipitation reaction.

    asked by steven
  76. PreCalculus

    The half life of Carbon-14 is 5730 years. a. find the rule of the function that gives the amount remaining from an initial quantity of 100 milligrams of carbon14 after t years. b. the burial cloth of an egyptian mummy i sestimated to contain 59% of the

    asked by Andy G
  77. Spanish2

    Está prohibido fumar. (Write advertisements or signs for the situations described. Use impersonal constructions with se.)

    asked by Christina
  78. Science -Check Answers-

    1. In the following diagram, the green ball changes direction after colliding with the red ball because the red ball has more momentum. True

    asked by Chloé
  79. FIN/370

    To what amount will $ 4,800 invested for ten years at 9% compounded annually accumulate?

    asked by Terrell Reid
  80. Chemistry Check Please!!!

    Using a table of standard electrode potentials (as in Appendix M of your text), calculate the standard cell potential, Eo, for: 2 Fe2+(aq) + Cl2(g) 2 Fe3+(aq) + 2 Cl(aq). Answer: Anode: 2 Fe2+ 2 Fe3+ + 2 e Eox = 0.771 V Cathode: Cl2 + 2 e 2 Cl Ered = +1.36

    asked by Maho
  81. math

    A rectangle is 7 feet longer than it is wide. If its area is 120 square feet, find its length and width. Represent this situation as an equation and solve.

    asked by amy
  82. PreCalc

    A weekly census of the tree frog in a park is given week population 1 18 2 54 3 162 4 486 5 1458 6 4374 a. find the function of the form f(x)=Pa^x that describes the frog population at time x weeks. b. what's the growth factor in this situation? (that is,

    asked by Andy G
  83. Social studies***help***

    2.what makes mining in cerro rico mountain so hard? A.distance from the city of potosi B.isolation from other workers C.dangerous working conditions and low pay D.lack of job security my answer is D.

    asked by Anonymous
  84. language arts -

    Need to confirm if the verbs in the sentences are physical or mental actions: 1..Owens strong performance angered Adolf Hitler - Physical

    asked by cee
  85. algebra 1

    The sum of two consecutive integers is 183. What is the smaller integer?

    asked by alibaba
  86. PHS 105

    At a particular instant, two asteroids in inter-stellar space are a distance r = 20 km apart. Asteroid 2 has 10 times the mass of asteroid 1, m2 = 10 m1. 1. If the acceleration of the asteroid 1 toward the asteroid 2 is 1.0 m/s2 , what is the acceleration

    asked by Mel
  87. algebra 1

    Eight times the sum of 11 and a number is 123. Which equation below can be used to find the unknown number?

    asked by Alex
  88. Music help

    what is the quality of the triad of the bottom third is minor and the top third is major

    asked by #1Student
  89. English

    1. Recite the reading text out loud. 2. Remember the reading text and tell the reading text to your friends out loud, 3. Say what you have memorized loudly. 4. Tell the reading text in front of the class. (Which ones are grammatical? They have to recall

    asked by rfvv
  90. Algebra

    Daniel has a piece of wire that is a fifth of a yard long. He cuts the wire into three equal pieces. What fraction of a yard is each piece?

    asked by Alexis
  91. Statistics

    Determine the minimum sample size required in order to be 95% confident that our estimate is within 4% of the true percent of all US households using e-mail. Assume no prior estimate available.

    asked by mary
  92. Math

    Explain why 0.4 divided by 0.2 has the same answer as 4 divided by 2. (Hint: Convert the decimals into fractions with a denominator of 10.)

    asked by Mari
  93. Physical Science

    The second law of thermodynamics forbids a heat engine to have thermal efficiency of what?

    asked by jasmine
  94. math

    a company makes and sells sailboats. The company's cost function in thousands of dollars is C(x)=2x+20, and the revenue function in thousands of dollars is R(x)=4x, where x is the number of sailboats. Find and simplify the profit function, P(x). How many

    asked by amy
  95. language arts -

    Need to confirm if the verbs in the sentences are physical or mental actions: 1. Other Americans in the Olympics challenged their opponents, too. --physics 2. Wilma dazzled the crowds in the track & field competition. --physical 3. Al Oerter, an American

    asked by cee
  96. Precalculus

    a culture starts with 10000 and the number doubles every 40 mins. a. find the function that models the number of bacteria at time t.

    asked by Andy G
  97. math

    Eddie walked 3/4 miles from his home to the park then walked 2/4 miles from the park to the library which distances is shorter

    asked by Lisa
  98. economics

    The Law of Large Numbers explains why it is unlikely that the actuarially fair premium for an insurance policy will be the same for a small start-up firm as it will be for a large employer such as a university. True or False

    asked by Dolly
  99. Algebra

    Compute and write your answer in scientific notation. (4.3x10-8thpwr)(1.5x10 9thpwr)

    asked by WillyB
  100. AP Calc

    The base of a solid is the region in the first quadrant bounded by the ellipse x^2/a^2 + y^2/b^2 = 1. Each cross-section perpendicular to the x-axis is an isosceles right triangle with the hypotenuse as the base. Find the volume of the solid in terms of a

    asked by Anon
  101. physics

    The drawing shows a skateboarder moving at 7.59 m/s along a horizontal section of a track that is slanted upward by 55.0 ° above the horizontal at its end, which is 0.741 m above the ground. When she leaves the track, she follows the characteristic path

    asked by Catalina
  102. Uninhibited Growth

    In 1992, Chad and Denmark each had a population of about 5.2 million. However, the relative growth rate for Chad was 2.5% per year, which Denmark was 0.1% per year. a. assuming exponential growth and the given growth rate, make projections for the

    asked by Andy G
  103. math

    Mike drank more than half the juice in his glass. What fraction of the juice could Mike have drunk?

    asked by Kianie
  104. College math

    Which statement describes the quadratic equation 6x^2-4x+1=0,correctly? A. it is one completed real root? B. It is two complete complex roots? C. It is two unequal real roots? Please help me with this

    asked by Cassandra
  105. ãåîìåòðèÿ

    Cos 600º + sin 600º -?

    asked by Àëåêñàíäð
  106. anatomy

    For my anatomy class, I need a to make a human bone such as a femur or any other bones in the human body. Any suggestions on a website?

    asked by Vicky
  107. Anatomy & Physiology

    For my class, I need a to make a human bone such as a femur or any other bones in the human body. Any suggestions on a website?

    asked by Gabby
  108. Math

    The rectangle shape in a set of blocks comes in two sizes(small and large), three colors (yellow, red, and blue), and have two thicknesses, (thick and thin). 1. Draw a tree diagram to find the total number of outcomes. 2. How many outcomes are possible? 3.

    asked by Matt
  109. Social studies***help***

    what makes mining in cerro rico mountain so hard? A.distance from the city of potosi B.isolation from other workers C.dangerous working conditions and low pay D.lack of job security

    asked by Anonymous
  110. MS.SUE

    thats my other 2 sisters we go to the same school in the same grade and how do u know our current location

    asked by dalia
  111. algebra 1

    The sum of three consecutive integers is -204 . What is the largest integer?

    asked by Alex
  112. Science

    1. In the following diagram, the green ball changes direction after colliding with the red ball because the red ball has more momentum. True

    asked by Chloé
  113. Chem Check Please!!!

    Using standard thermodynamic data from Appendix L of your text, calculate the equilibrium constant at 298 K for the following chemical reaction: CO(g) + H2O(l) CO2(g) + H2(g). Answer: CO(g) + H2O(l) CO2(g) + H2(g) G = (394.359 + 0) (137.168 237.15) =

    asked by Maho
  114. Physical Science 9

    how did chadwicks discovery of nutrons change the atomic model

    asked by Steve
  115. Social studies***help***

    what makes mining in cerro rico mountain so hard? A.distance from the city of potosi B.isolation from other workers C.dangerous working conditions and low pay D.lack of job security i pick B.

    asked by Anonymous
  116. statistics

    a quiz had 6 questions, each with 4 possible answers (only one of which is correct). If you answer them at random, find the probability that all are correct and at least one is wrong.

    asked by tiffany
  117. Physics

    Neglecting the pressure drop due to resistance, calculate the blood pressure in mmHg in an artery in the brain 32 cm above the heart. The pressure at the heart is 120mmHg and the density of blood is 1.05g/cm3.

    asked by Paul
  118. Math

    state the A value of each quadratic equation 1. Y=2x^2-4x+1 Please help

    asked by Anonymous
  119. Algebra

    Compute and write your answer in scientific notation. 8.2x10 5thpwr / 2.75x10 -3rdpwr

    asked by WillyB
  120. Mensuratin

    The barrel of an ink pen cylinders in shape is 7cm long and 5mm in diameter.A child filled up the ink in this pen from 1 line ink bottle. How may times a child will filled his ink pen.

    asked by bikram
  121. Physics

    A full term fetus may have a mass of 3.3 kg . If the entire weight of the fetus rests momentarily on the mother's bladder, supported on an area of 78.8 cm2 calculate the pressure exerted in mmHg.

    asked by Paul
  122. Math

    This number is less than 200. The ones digit is 5 less than 10. The tens digit is 2 more than the ones digit. What is the number?

    asked by Shawn
  123. Algebra

    Fiona and camila took a load of peaches to the farmers market. During the first hour , they sold 1/2 of the peaches plus 1/2 of a peach. In the second hour, they sold 1/3 of the remaining peaches plus 1/3 of a peach. In the third hour , they so,d 1/4 of

    asked by Kristen
  124. math

    Fabric costs14.00 per yard. If you buy 5 yards or more ,you can get 20% off. how much would 5 yards cost on sale?

    asked by sam
  125. Physics

    An artery supplying heat muscle with blood is occluded to 13.9% of its original radius by a clot. By what percent is the blood flow through this artery reduced.

    asked by Paul
  126. physics

    Complete the following nuclear reaction: ^16,v8 O + ^4, v2 He → ________ + ^19, v10 Ne 1p 1n 2H 3H

    asked by Anonymous
  127. Trigg

    How do I find a rectangular-coordinate equation for the curve by elimination the parameter? x=2 sin t, y= 4 cos t so far I have x= r cos(theta) and y= r sin (theta) but, it's the opposite. please help.

    asked by Jenny
  128. math

    Calculate the slant height for the given cone. Round to the nearest tenth. (explain?) 10.2 cm 11.4 cm 9.8 cm 12.0 cm (I picked this one)

    asked by luna
  129. French school

    How many days do students go to school in France? On which days do they not go to school?

    asked by rfvv
  130. Physics

    A linear spring of stiffness k is designed to stop the 20-Mg railroad car traveling at 8 km/h within 400mm after impact. Find the smallest value of k that will produce the desired result.

    asked by Ivan
  131. mathematics

    which planet has the fastest moon with a speed of 113300km/h?

    asked by Minenhle
  132. Environmental Concern Speech

    I am struggling to prepare a environmental concern speech that must consist of 2-minutes' worth of writing. In fact, I am torn and conflicted about which concern to chose: deforestation, pollution, or neglect of nature. What do you think? Which do you

    asked by Anonymous
  133. math

    0.9-2(3r+0.2)

    asked by Anonymous
  134. Math

    Explain how to calculate 1/4 divided by 1/8 using reciprocal fractions

    asked by Mari
  135. chemistry

    Determine the specific heat of a material if a 27.3 g sample absorbed 44.2 J as it was heated from 293 K to 336 K.

    asked by Bubba
  136. uninhibited growth

    In 1992, Chad and Denmark each had a population of about 5.2 million. However, the relative groth reate for Chad was 2.5% per year and Denmark was 0.1% per year. a. assuming that exponential groth and the given groth rate, make projections for the

    asked by Andy G
  137. Math

    A private plane traveled from Seattle to a rugged wilderness at an average speed of 180 mph. The return trip speed s 225 mph. If the total travelling time was 7 hours, how far is Seattle from the wilderness

    asked by Trying to make it in life
  138. filipino

    halimbaw ng antithesis(patatambis)

    asked by jnky
  139. History

    I need help on a few questions.. Full sentences would be nice. 1. When was Rupert's Land given to Prince Rupert? 2.What areas of land does Rupert's land cover? 3.What is called Rupert's Land now?

    asked by Mari
  140. 2 LA questions pls help!!!

    Question 1 corresponds to "Fireproofing the Forests." Question 3 corresponds to "Birdfoot's Grampa." 1. Which of these is NOT a goal of thinning the forest? (1 point) creating open spaces*** protecting older trees increasing the amount of fuel available

    asked by sonamy4eva
  141. Biology

    My AP Biology class is exploring alpha amylase production in germinating barley seeds. There are three treatments the seeds, or more specifically the half-grains, are put in. 1) half grains with no embryo and no GA 2) half grains with an embryo present 3)

    asked by Mia
  142. Physical Science

    If the volume and the number of molecules remain constant for a gas, a temperature increase causes the pressure to do what?

    asked by jasmine
  143. Chemistry

    If 0.75 g of a gas dissolves in 1.0 L of water at 20.0 kPa of pressure, how much will dissolve at 105.4 kPa of pressure?

    asked by Anonymous
  144. 6th grade - Lang Arts

    Can you check the following? Find the verb phrase 1. Will you buy me a drink? ans: will buy 2. Sam is not going to the dance. ans: is going 3. Al should have mowed the lawn today. ans: should have mowed 4. Theresa will be playing her clarinet at the

    asked by Alexis
  145. math

    Jackie is purchasing a $200 coat at 15% off. There is a $5.00 shipping charge to have the item shipped to her house. What is the total amount that Jackie must pay? A. $170 B. $175 C. $205 D. $220

    asked by ★★ PLEASE HELP ★★
  146. Algebra

    Solve using FOIL (y-2) (3y3-5y+7)

    asked by billy
  147. human resources

    ABC science, concerned about higher and higher health care costs has decided to implement the following changes in their employment relationships with ABC employees: 1. Employees must stop using tobacco products and the company will immediately prohibit on

    asked by studious
  148. College math

    Help me The product of 4 and y is the sum of 3 and 9

    asked by Cassandra
  149. Physics

    I need help with my lab, it's telling me to measure the mass of cup 1, but i don't understand how to measure it... I have a digital scale does that measure mass? or is there a certain equation to measure it?

    asked by Me and I
  150. Life orientation

    Identify and write down one medium term and one long term goal you have set for yourself

    asked by Slow jace
  151. Physical Science

    When 8 kcal of heat is added to 2.4 kg of a substance, its temperature increases 23 C°. What is the specific heat of the substance?

    asked by jasmine
  152. English

    If you drop your cell phone in water, it is no longer covered by the warranty. a. Adjective b. Adverb c. Noun

    asked by Mary
  153. Government

    What is the name for any country that provides extensive social services at little or no direct cost to consumers? A. a welfare state B. a socialist state C. a communist state D. a collective state

    asked by mollz
  154. algebra 1

    The sum of three consecutive integers is -204 . What is the largest integer?

    asked by jessica
  155. AP Calculus

    Approximating the integral from 0 to 6 of (e^x dx) by 3 circumscribed rectangles of equal width on the x-axis yields ____. a) 2e^2 + 4e^4 + 6e^6 b) 2(e^2 + e^4 + e^6) c) 2(e + e^3 + e^5) d) e + 3e^3 + 5e^5 e) e^2 + 3e^4 + 5e^6

    asked by Anon
  156. math

    (4.3 x 10-8) (1.5 x 109) Compute and write in scientific notation

    asked by Derek
  157. physics

    The magnitude of the magnetic field produced by a long straight current-carrying wire is: proportional to both the current in the wire and the distance from the wire proportional to the current in the wire and inversely proportional to the distance from

    asked by lilly
  158. algebra

    How would you solve polynomial equation for, a to the 8th power minus a to the 2nd power and b to the 6th power?

    asked by Amy
  159. math

    Tell which operation you would use for each word phrase. P people increased by two

    asked by Emily
  160. math

    xy = 5 a) Identify each relationship as direct or inverse variation. b) Calculate the constant of each relationship and explain how you arrived at your answer. c) Using complete sentences, explain how the two relationships are different, and how they are

    asked by bobby
  161. math

    The height h in feet reached by a golf ball after t seconds is given by h(t)=-16t squared+120t, After how many seconds does the golf ball strike the ground?

    asked by amy
  162. College Algebra

    Please, I need your help!How much water must be evaporated from 16oz of a 2% salt solution to make a 4% salt solution?

    asked by Cassandra
  163. chemistry

    34.0g of NaOH in 500.mL of NaOH solution

    asked by faiza
  164. Computers

    System A consists of a single ring with 100 stations, one per repeater. System B consists of four 25 stations rings linked by a bridge. If the probability of a link failure is , a repeater failure is , and a bridge failure is , derive an expression for

    asked by Bob
  165. Physical Science

    The entropy of an isolated system always do what when natural processes occur?

    asked by jasmine
  166. Math

    Need help on the problem below with 4 coordinate points. "compute the round trip distance from your house (-2,5), then to your friends house (8,-1), to your uncle's house (2,-1), and then back to your house (-2,5) Thanks....

    asked by Brandi
  167. College math

    the lengths of the legs of a right triangle are given: a=10 b=24 c=____? Thank you so much

    asked by Cassandra
  168. Physics

    (30)(Cm)Δ+(335.5)(4.18)Δ(21)=0 I need to find the specific heat of the masses, but i don't know how to, i'm currently doing a lab and these are the mass and temp. numbers that i plugged in...

    asked by Me and I
  169. Physics

    Smoking causes blood vessels to constrict. If the average blood vessel radius of a smoker decreases 7.6% and the body increases blood pressure to maintain a constant flow. Calculate the needed percent increase in pressure.

    asked by Paul
  170. Chemistry HELP URGENT PLEASE!!!

    what current (in amperes) is required to plate out 2.85 g of Cr from a Cr^3+ solution in a period of 2.50 hr?

    asked by Maho
  171. algebra

    (4a2+9b5) - (-2a2-6b5)

    asked by billy
  172. Math

    Square on top 3x+12 sides 5x-3 and 7 on bottom 18

    asked by Anonymous
  173. statistics

    a resturant must choose 5 employees from 12 applicants. in how many ways can they do that?

    asked by tiffany
  174. Algerbra

    How to solve the compound inequalities of. -1< 3+2x-3 or 5x-1>19

    asked by Mica
  175. chemistry

    How many grams of CL2 are needed to produce 7.20 moles of chloroform?

    asked by Anonymous
  176. algebra

    kaylas cell phone plan as a fixed fee of $45

    asked by linda
  177. Math

    Find the product. Write the product in simples form. 2/3 x 8 = 2/3 x 8/1

    asked by Alex
  178. Physical Science 9

    In an ionoic bond how many valence electrons would an atom have?

    asked by Steve
  179. Chemistry

    find the freezing point of a solution containing 3 grams of a compound of molar mass 125 g/mol in 45 g of camphor

    asked by Ann
  180. Physics

    A high efficiency natural gas furnace is 92% efficient. How many joules of output energy will 750kJ of input fuel provide? Please help! Thank you.

    asked by Cherie
  181. Grammar

    Us or we? "Our characteristics make us/we and friends go to the movies."

    asked by Anonymous
  182. Precalculus

    The population of the US in 1850 was 23191876. In 1900, the population was 62947714. a. assuming that the population grew exponentially, compute the grownth constant. b. assuming continued growth at a constant rate, predict the population in 1950.

    asked by Andy G
  183. Chemistry Help Please

    Each of the following statements is false. Rewrite each so that it makes a correct statement about free energy. a. ΔGuniverse > 0 for any spontaneous process. b. ΔH = ΔG TΔS.

    asked by Tenshi
  184. Personal Improvement

    What are some examples of values that one could stand up to?

    asked by Anonymous
  185. interest

    In a savings account, a principal of $1000 is deposited at 5% per annum. In the second account a principal of $500 is deposited at 10% per annum. Both accounts are compounded continuously. a. estimate the doubling time for each

    asked by Andy G
  186. English

    1. I live in Texas, U.S.A. 2. I live in Texas, the U.S.A. -------------------------------- Which one is correct?

    asked by rfvv
  187. math

    how do you do 33 1/3% of 200.oo? the 1/3 is throwing me off. Thank you

    asked by sam
  188. algebra 1

    The sum of two consecutive even integers is -34 . What is the smaller integer?

    asked by Alex
  189. math

    WHAT DOES G EQUAL IN 20 TIMES G= 6

    asked by JESSIE
  190. accounting-fory

    On January 1, 2012, Bartell Company sold its idle plant facility to Cooper Inc. for $1,050000. On this date, the plant had a depreciated cost of $735,000. Cooper paid $150,000 cash on January 1, 2012, and signed a $900,000 note bearing interest at 10%. The

    asked by alex
  191. Algebra

    Compute and write your answer in scientific notation. 6.3x 10 -7thpwr/ 3.25 x 10 -12thpwr

    asked by WillyB
  192. chmistry

    a aqueous solution of hydrochloric acid has concentration of 37. wt % convert in concentration value to molar concentration if the density of the solution is 1.19g/ml molar mass of Hcl=36.46g/mol t

    asked by dahat
  193. chemistry

    How many grams of CL2 are needed to produce 7.20 moles of chloroform?

    asked by Anonymous
  194. math

    Are interior angles on the same side of the transversal always, sometimes or never supplementary?

    asked by Cindy
  195. chem

    which of the following compound contain more than 10 atoms per formula: a)ammonium phosphate, b) aluminium carbonate, C)iron(III) cyanide,

    asked by anna
  196. Physical Science 9

    what type of bond is a metal cation likely to form?

    asked by Steve
  197. English ms sue

    Ms Sue could you please edit my English proposal? I've been going through it and fixing lots of things.

    asked by Mohammad
  198. history

    How did the telegraph change people's lives..

    asked by 🙅
  199. AED

    I need help in trying to figure out why teachers in the Northern states are being paid more then those in the South? And also why more money is being spent on student's education in the North. Thank you!

    asked by Sarah
  200. life orientation

    what is taxation?

    asked by nthabiseng
  201. Linear Algebra

    Fnd the left null space of matrix A = [5 -3 1] [-2 4 -6] [11 -8 5]

    asked by Sharon
  202. POL201

    Originalists often hold that it is incorrect to use the Equal Protection Clause of the Fourteenth Amendment to strike down laws that discriminate because

    asked by missy
  203. algebra

    (-2x)-6

    asked by Please help me
  204. English

    All the best, Bill ------------------------------ We can see 'All the vest' at the end of a letter. What is the meaning of it? Which one is similar to 'All the best'?

    asked by rfvv
  205. math

    2/3(6+3x)-7x

    asked by Anonymous
  206. AP Calc

    The coordinates of the point on the curve cos(y)=x-y, -pi

    asked by Anon
  207. AP Calc

    If x=e^t and y=t^2-3, then for what values of t, t>=0, is the function y=f(x) concave up?

    asked by Anon
  208. math

    subsititude 9 for x 123x^2-492x+813

    asked by WINSTON
  209. Environmental Concern Speech

    Can someone give their opinion about the beginning of my speech? "A few short days ago, my mother and I left our house to journey to the local grocery store. While my mother veered onto the highway, I quickly glanced over at the side of the road, only for

    asked by Anonymous
  210. Grade 10 English

    Based on the movie, The Red Violin what are 3 ways it differs from most Hollywood blockbusters?

    asked by Anonymous
  211. math

    4(5x+2)-6

    asked by Anonymous
  212. scince i try i have no idea

    definitions for force, mass, inertia and friction

    asked by eduarda
  213. math

    2(15+5w)-w

    asked by Anonymous
  214. math

    6(1y+2)-6+5y

    asked by Anonymous