Questions Asked on
April 29, 2014

  1. science

    Running the dishwasher only when it is completely full is an example of? A. recycling resources B. using nonrenewable resources C. reusing resources D. reducing resource use

    asked by CIERRA
  2. English - Help!!

    1. The sharp rock LACERATED her side as she climbed the side of the cliff. bruised sliced scratched wounded I think it's B? Can someone help?

    asked by Sandy East Ward
  3. science

    which of the following is used to make biomass fuel? A. coal B. natural gas C. plants and animals waste D. petroleum

    asked by help plzz
  4. nursing/dosage

    The health care provider prescribed the adjustment of the IV hourly rate based on the nasogastric tube (NGT) output q4h (every 4 hours) for a client who had abdominal surgery yesterday. From 12:00pm to 4:00pm the NGT output was 240ml and the IV was infused

    asked by Stephanie
  5. grade 3 math

    1) what is the greates perimeter of a rectangle with an area of 39 square feet? 2) What is the least perimeter of a rectangle with an area of 32 square feet? 3) A rectangle has an area of 42 square inches. Which has a greater perimeter, the rectangle with

    asked by mimi
  6. math

    Which is M=300J/P solved for J? A. J=300PM B. J=300M/P C. J=300PM D. J=PM/300

    asked by brianna
  7. Physical Science

    Which of these cannot increase the strength of an electromagnet? a. making the loops smaller in the coil b. placing an iron bar in the coil c. winding more loops in the coil d. increasing the current in the coil

    asked by Alex
  8. Maths

    Max pack cereal boxes into a larger box the volume of each wreak box is 175 cubic inches which is the best estimate for the volume of the large box 210,420,2,100 4,200 I pick 2,100 is that correct

    asked by Pinks
  9. grade 3 math

    two rectangles have an area of 36 square inches. Name two possible perimeters for the rectangles.

    asked by mimi
  10. Math

    There are 3,000 people at a concert. You survey a random sample of 200 people and find that for 35 of them this is the first concert they have ever attended. Estimate how many people are attending their first concert that night.

    asked by Gwen
  11. Calculus Help and Check

    The marginal cost of manufacturing x yards of a certain fabric is C'(x) = 3 − 0.01x + 0.000012x2 (in dollars per yard). Find the increase in cost if the production level is raised from 2000 yards to 4000 yards. $186,000

    asked by Tenshi
  12. social studies

    1. How does the Israeli-Palestinian conflict most directly affect the daily lives of young people in Jerusalem

    asked by lena sulhoff
  13. Math

    You want to conduct a survey to find out what sport the students at your school prefer to play. a) You interview 20 boys playing football at lunch. Is this a random sample? explain b) The survey question you ask is, ''What is your favorite sport to play?''

    asked by Liv
  14. Physics

    In the afternoon, the decibel level of a busy freeway is 80 dB with 100 cars passing a given point every minute. Late at night, the traffic flow is only 5 cars per minute. What is the late-night decibel level?

    asked by Georgey
  15. Chemistry

    Calculate [H3O+] in the following aqueous solution at 25 ∘C: [OH−]= 1.9×10−9M Calculate [H3O+] in the following aqueous solution at 25 ∘C: [OH−]= 2.1×10−2M Calculate [H3O+] in the following aqueous solution at 25 ∘C: [OH−]= 6.1×10−12M

    asked by Brandon
  16. Probability

    In parts 1, 3, 4, and 5 below, your answers will be algebraic expressions. Enter 'lambda' for and 'mu' for . Follow standard notation. 1. Shuttles bound for Boston depart from New York every hour on the hour (e.g., at exactly one o'clock, two o'clock,

    asked by qwerty
  17. Chemistry

    Would it take more 0.1 M HCl or 0.1 M H2SO4 to neutralize 30 ml of NaOH?

    asked by Anonymous
  18. Math

    A manufacturer samples 100 wires for quality testing. Four of the wires are found to be defective. If 750 wires are produced in one hour, how many should the manufacturer expect to be defective? A.30 B.60 C.75 D.96

    asked by Candy
  19. Math

    In a sample of 50 museum visitors one afternoon, 22 were female and 28 were male. If there were 800 museum visitors that afternoon, estimate the number of visitors who were female. A.220 B.352 C.448 D.700 Is the answer C?

    asked by Carol
  20. English

    Identify the correct sentence. A. In order to assess you're level of improvement in the course, you need to take both the pre-test and the post-test. B. In order to assess your level of improvement in the course, you need to take both the pre-test and the

    asked by Angela
  21. chemistry

    pure water has a hydrogen ion concentration of 1 x 10-7 m and a ph of 7. a student measures a basic solution and finds that it has a hydrogen ion (H+) concentration of 1 x 10-3. explain why the student must have an error in her statement

    asked by didisilver
  22. CALCULUS

    The region R is bounded by the x-axis, y-axis, x = 3 and y = 1/(sqrt(x+1)) A. Find the area of region R. B. Find the volume of the solid formed when the region R is revolved about the x-axis. C. The solid formed in part B is divided into two solids of

    asked by Anon
  23. Algebra

    89, 88, 78, 95, 92 Sadye has the Algebra test scores shown. If her goal is to have a test average of 90 or higher what is the lowest score she can make on her next test and still achieve her goal? Note: scores are not rounded.

    asked by Daizha
  24. precalc

    The wheels of a car have a radius of 11 inches and are rotating at 600 revolutions per minute, find the speed of car in mileage per hour.

    asked by Andy G
  25. probability

    All ships travel at the same speed through a wide canal. Each ship takes t days to traverse the length of the canal. Eastbound ships (i.e., ships traveling east) arrive as a Poisson process with an arrival rate of λE ships per day. Westbound ships (i.e.,

    asked by JuanPro
  26. science

    solar,wind,nuclear,and hydroelectric energy sources are similar in which of the following ways? A. they are all nonrenewable energy sources B. they all require an indirect use of sunlight in order to make electricity C. they are all considered alternative

    asked by help plzz
  27. college chem

    A sample of methane gas CH4, occupies a volume (L) of 58.2 L at a pressure of 7.25 atm. What volume will the gas occupy if the pressure is lowered to 2.03 atm

    asked by ashley
  28. English

    When addresses appear within the text of a document,: A. always abbreviate the street, city, and state. B. it is optional to abbreviate the parts of the address. C. spell out the parts of the address. D. always abbreviate the street and city and spell out

    asked by Angela
  29. math (5)

    Country Workshop manufactures both finished and unfinished furniture for the home. The estimated quantities demanded each week of its rolltop desks in the finished and unfinished versions are x and y units when the corresponding unit prices, in dollars,

    asked by Mia
  30. Probability

    All ships travel at the same speed through a wide canal. Each ship takes days to traverse the length of the canal. Eastbound ships (i.e., ships traveling east) arrive as a Poisson process with an arrival rate of ships per day. Westbound ships (i.e., ships

    asked by qwerty
  31. Physics

    At the Earth's surface, a projectile is launched straight up at a speed of 9.9 km/s. To what height will it rise? Ignore air resistance and the rotation of the Earth. _____m

    asked by Joe
  32. college chem

    A mixture contains H2 at 600 torr pressure, N2 at 200 torr pressure and O2 at 300 pressure. what is the total pressure of the gases in the system?

    asked by ashley
  33. college chem

    a sample of a gas occupies a volume of 1025 mL at 75 degrees Celsius and 0.75 atm. What will be the new volume if temperature decreases to 35 degrees Celsius and pressure increases to 1.25 atm

    asked by ashley
  34. Math

    Wildlife biologists catch, tag, and release 32 bears at a game reserve. Later,10 bears are caught and 4 of them have tags. Estimate the total number of bears at the game reserve. A.320 B.316 C.128 D.80 Is the answer D?

    asked by Beau
  35. probability

    PROBLEM 7: SAMPLING FAMILIES (3 points possible) We are given the following statistics about the number of children in the families of a small village. There are 100 families: 10 families have no children, 40 families have 1 child each, 30 families have 2

    asked by JuanPro
  36. Math

    A fish and game worker catches, tags, and releases 120 trout in a lake. Later, she catches 84 trout and finds tags on 30 of them. Estimate the number of trout in the lake. A.43 B.234 C.336 D.3600 Is it C?

    asked by Kayla
  37. probability

    In parts 1, 3, 4, and 5 below, your answers will be algebraic expressions. Enter 'lambda' for λ and 'mu' for μ. Follow standard notation. Shuttles bound for Boston depart from New York every hour on the hour (e.g., at exactly one o'clock, two o'clock,

    asked by JuanPro
  38. social studies 9

    Why do you think the government has downplayed the Royal Proclamation in regard to land claims? I don't understand the question.

    asked by kim
  39. Chemistry

    If a plant has 88.0 g carbon dioxide and 64.0g water available for photosynthesis determine: a the limiting reactant b. the excess reactant and the mass in excess c. the mass of glucose produced

    asked by Lou
  40. precalc

    A celing fan with 16 inch blades rotates at 45 revolutions per minute. Find angular speed of fan in radians per minute. Find linear speed of the tips of blades in inches per minute.

    asked by Andy G
  41. English

    Identify the sentence that is punctuated correctly. A. Here is our check, Mr. Vons, for $7.35. B. Here is our check Mr. Vons, for $7.35. C. Here is our check, Mr. Vons for $7.35. D. Here is our check Mr. Vons for $7.35. D

    asked by Angela
  42. trig

    On a typical day at an ocean port, the water has a maximum depth of 18m at 6:00 am. The minimum depth of 9m occurs 6.8 hours later. Write an equation to describe the relationship between the depth and time.

    asked by Sam
  43. Astronomy

    The luminosity of the Sun is 4*10^33 erg/s, and its radius is 7*10^10 cm. What is the Sun's effective temperature? Please enter your answer in units of Kelvin. What is the Sun's effective temperature? Please enter your answer in units of Kelvin. -

    asked by qwerty
  44. A.P English

    Would an example of parallelism in "Beloved" be the mention of the "chokecherry tree" on her back, since it's mentioned a couple of times? Or would parallelism be more like the dog leaving and not coming back to the house twice because of the ghost? (I'm

    asked by Me
  45. math 109

    Charlie wants to buy a $500 TV in 8 months. How much should he invest now at 4% simple interest to have the money in 8 months?

    asked by gates
  46. Science

    in a cladogram, a branch point represents a(n)____________ and a branch that ens without leading to living species represents___________. a. common ancestor,;extinction b.mutation; punctuated equilibrium c.extinct species: common ancestor D.common

    asked by Leo
  47. probability

    Fred is giving away samples of dog food. He makes visits door to door, but he gives a sample away (one can of dog food) only on those visits for which the door is answered and a dog is in residence. On any visit, the probability of the door being answered

    asked by JuanPro
  48. algebra 1

    Mrs. Hernandez owns a computer training business. She charges a lab fee plus an hourly fee to train office workers on various software programs. It costs $265.00 to attend a 6-hour course and $345.00 for an 8-hour course. Which equation relates x, the

    asked by Anonymous
  49. probability

    Consider a Poisson process with rate λ. Let N be the number of arrivals in (0,t] and M be the number of arrivals in (0,t+s], where t>0,s≥0. In each part below, your answers will be algebraic expressions in terms of λ,t,s,m and/or n. Enter 'lambda' for

    asked by JuanPro
  50. chemistry

    How many minutes are needed to plate out 29.00g Mg from molten MgCl2, using 2.70A of current?

    asked by joe
  51. Govt college of technology

    A fly wheel rotates at 300 rev/min.if the radius is 6cm through what total distance does a point on the rim travel in 30 sec.

    asked by shoaib
  52. Physics

    On the Apollo 14 mission to the moon, astronaut Alan Shepard hit a golf ball. The acceleration due to gravity on the moon is 1/6 of its value on the earth (gravity on moon -1.633m/s2). On earth, golf balls are driven at about 70 m/s with a loft angle of

    asked by Arr-chan
  53. chemistry

    How many kilograms of H2O must be added to 76.0 g of Ca(NO3)2 to form a 0.509 m solution?

    asked by Cece
  54. probability

    lengths of the different pieces are independent, and the length of each piece is distributed according to the same PDF fX(x). Let R be the length of the piece that includes the dot. Determine the expected value of R in each of the following cases. In each

    asked by JuanPro
  55. Trig

    Find the 6th term of the arithmetic sequence with a9=120 and a14=195

    asked by Kiki
  56. Probability

    We are given the following statistics about the number of children in the families of a small village. There are 100 families: 10 families have no children, 40 families have 1 child each, 30 families have 2 children each, 10 families have 3 each, and 10

    asked by qwerty
  57. probability

    Suppose that you have two laptops, both of which you begin using at time 0. Each laptop will eventually fail, and we model each one's lifetime as exponentially distributed with the same parameter λ. The lifetimes of the two laptops are independent. One of

    asked by JuanPro
  58. chem

    How many grams of NH3 are present in 725 mL of gas at STP?

    asked by haley
  59. statistics

    1000 raffle tickets are sold and the winner is chosen at random there is only one prize $500 in cash you buy one ticket(a) what is the probability you will win the prize of $500 (b) your expected earnings can be found by multiplying the value of the prize

    asked by Doris
  60. science

    How does using coal to generate electricity A. using more coal reduces the amount of pollution from using oil

    asked by help plzz
  61. Chem

    Please help how to set up How many grams of CuSO4 * 5H2O are needed to prepare 100.ml of a 0.10 M solution?

    asked by Nicholas
  62. Chemistry

    If you measured vitamin C in the solution prepared from a vitamin C tablet, calculate how much vitamin C was in the tablet (show your work) and compare that with the amount claimed to be in the tablet given on the label. [Note: You dissolved the tablet in

    asked by SS
  63. statistics

    A researcher is testing the effect of a new cold and flu medication on mental alertness. A sample of n=9 college students is obtained and each student is given the normal dose of the medicine. Thirty minutes later, each students performance is measured on

    asked by ed
  64. Science

    What is the force that results from a 3,000 kg car accelerating at 20.00 m/s^2

    asked by Anonymous
  65. Science

    a 5 kg skateboard moves at 7 m/s^2 . What is the force of the skateboard? 35 N

    asked by Anonymous
  66. Physics

    An artificial satellite circles the Earth in a circular orbit at a location where the acceleration due to gravity is 8.26 m/s2. Determine the orbital period of the satellite.

    asked by Joe
  67. math

    A clerk is packing cubes into a box each cube has edges of 6 inches the dimensions of the box are 15 inches by 30 i.ches by 18 inches find how many cubes will fit in the box ? I don't know how to solve and explain how i found my answer please

    asked by mark
  68. chemistry

    At 22 degrees Celsius and 729 torr pressure, what will be the volume of 75 mol of NH3 gas?

    asked by Anonymous
  69. math

    Sarah's parents are filling their swimming pool. She wants to know how long it will take. What unit is best used to give the rate of the water flowing into the pool? Her pool is 22,000 gallons. What unit will the answer to her question be answered in?

    asked by roberto
  70. 4 the grade math

    What's 3/4 of blank=75

    asked by Elsana
  71. Probability

    Fred is giving away samples of dog food. He makes visits door to door, but he gives a sample away (one can of dog food) only on those visits for which the door is answered and a dog is in residence. On any visit, the probability of the door being answered

    asked by qwerty
  72. Chemistry URGENT

    Could someone let me know if I answered these questions? 1. How do you classify the liquid pair mineral oil -- H2O, miscible or immiscible? I believe the answer is immiscible because oil and water do not mix. 2. what would be the Molarity of a solution

    asked by jazz
  73. algebra 1

    The Ricco family filled the gasoline tank of their car at the beginning of a long trip. Their car used gasoline at the rate of 1 gallon every 21 miles. When they stopped for lunch, they had driven 315 miles, and there were 9 gallons of gasoline left in the

    asked by Anonymous
  74. home ecoecnomicsnomics

    what are costs and consequences of providing the subsidies and welfare

    asked by sipho prince
  75. college chem

    A sample of O2 gas was collected over water at 23 degrees celsius and 772 torr. what is the partial pressure of the O2?

    asked by ashley
  76. physics

    A 1500-kg car coast in neutral down a 2.0degrees hill. The car attains a terminal speed of 20.0 m/s. The question is:how much power must the engine deliver to drive the car on a level road at 20.0 m/s?? Help me out please!!

    asked by Anonymous
  77. Cost Accounting

    The accounting records of Nu-tonics Inc., include the following information for the year ended December 31, 2013: Materials Inventory as at 1 January 2013 $ 20,000 Materials Inventory as at 31 December 2013 $ 24,000 Work in process Inventory as at 1

    asked by Candy
  78. math

    a coding supervisor must determine the number of full-time equivalents (FTEs) needed to code 500 discharges per week. If it takes an average of 20 minutes to code each record and each coder works 7.5 productive hours per day, how many FTEs will the coding

    asked by Anonymous
  79. Statistic in Social Science

    The verbal part of the Graduate Record Exam (GRE) has a mean of 500 and a standard deviation of 100. Use the normal distribution to answer the following questions: a. If you wanted to select only student at or above the 90th percentile, what verbal GRE

    asked by Rhea
  80. math

    You are buying tickets for rides at a carnival. Tickets cost $2 each. You want to spend no more than $30 on tickets. Write an inequality to represent this situation.

    asked by Anonymous
  81. social studies 9

    Pros and cons of the Quebec Act

    asked by kim
  82. Trigonometry

    An observer (0) spots a plane flying at a 55 degree angle to his horizontal line of sight.If the plane is flying at an altitude of 21,000 ft., what is the distance (x) from the plane (P) to the observer (0)

    asked by Angelica
  83. aptitude

    Three individuals form a partnership and agree to divide the profits equally. X invests $4,500, Y invests $3,500 and Z invests $2,000. If the profits are $1,500, how much less does X receive than if the profits were divided in proportion to the amount

    asked by Anonymous
  84. math:mensuration plane shapes

    a cone that has a base diameter-8cm and height-3cm is cut into a circle's sector, what is the angle of the sector

    asked by shegster
  85. Physics

    The maximum kinetic energy of a mass-spring system in SHM is equal to

    asked by Spaceman
  86. Information Literacy

    Study the following citation: "LONDON 2012 OLYMPIC PARK: Making the most of London's landmarks." Building Design 27 July 2012: 19. Penn Foster. Web. 2 Aug. 2012. What is the title of the journal in which the article is published? A. Penn Foster B. LONDON

    asked by Shamille
  87. CALCULUS HELP PLZ

    The region R is bounded by the x-axis, y-axis, x = 3 and y = 1/(sqrt(x+1)) A. Find the area of region R. B. Find the volume of the solid formed when the region R is revolved about the x-axis. C. The solid formed in part B is divided into two solids of

    asked by Anon
  88. Chemistry

    Classify each of the compounds below as strong or weak acids, strong or weak bases, or salts: A. HCl B. KOH C. NH4NO3 D. H2SO4 E. NH4OH F. H3PO4 G. NaOH H. HClO4 i. Mg(OH)2 J. H2CO3 K. BaSO4 l. HC2H3O2 The numbers are sub(little numbers

    asked by ASAP!!
  89. math (4)

    Country Workshop manufactures both finished and unfinished furniture for the home. The estimated quantities demanded each week of its rolltop desks in the finished and unfinished versions are x and y units when the corresponding unit prices, in dollars,

    asked by Mia
  90. History help

    1. The U.S. Supreme Court Decision in Plessy v. Ferguson said that Louisiana's Separate-But-Equal laws were unconstitutional. True False 2. Redeemer Democrats were often called Bourbons. True False 3. What term describes the Louisiana Bourbons? Enlightened

    asked by Golden Star
  91. Algebra

    Simplifing rational expressions Simplify the expression & state any excluded values: (2s^2 - 5s - 12) / (2s^2 - 9s + 4)

    asked by Sandra
  92. Chemistry

    The following two solutions were combined and mixed well: 150.00 mL of a 3.500 M iron(¡¡¡) nitrate solution and 760.00mL of a 1.600M magnesium nitrate solution. 20.00mL of the final solution was transferred with a pipette into an empty 250.00mL

    asked by Mantsha
  93. Algebra 1 math

    Deborah rolls two fair dice. What is the probability that the sum of the numbers rolled is 7?

    asked by HELP PLEASE
  94. Astronomy

    Choose one answer for each question How old is the universe? 6,000 years old 380,000 years old 13.8 billion years old 13.8 million years old A parsec is: Longer than a light year The distance between the Earth and the Sun Approximately 3x10^24 cm None of

    asked by qwerty
  95. Chem.

    in the equation Ba(NO3)2(aq)+Na2SO4 (aq) →BaSO4(s) + Na2(NO3)2 .......is Na2(NO3)2 aqueous?

    asked by Anonymous.
  96. Chemistry

    Did I ionize Mn2(CO3)3 correctly? Mn2(CO3)3 --> 2Mn^(3+) + 3CO3^(2-)

    asked by James
  97. college chemistry

    Consider the following equation: 4 NH3(g) + 5 O2(g)= 4 NO(g) + 6 H2O(s) a) HOw many liters of oxygen are required to react with 205 L NH3? Both gases are STP. b)How many grams of water vapor can be produced from 25 L NH3 if both gases are STP? c) How many

    asked by la fonda
  98. social studies 9

    Why do you think the government has downplayed the Royal Proclamation in regard to land claims?

    asked by kim
  99. chem

    calculate the density of each of the following gases: a)NH3 at 25 Degrees Celsius and 1.2 atm b)Ar at 75 Degrees Celsius and 745 torr

    asked by Ashley
  100. Chemìstry

    The following two solutions were combined and mixed well: 150.00 mL of a 3.500 M iron(¡¡¡) nitrate solution and 760.00mL of a 1.600M magnesium nitrate solution. 20.00mL of the final solution was transferred with a pipette into an empty 250.00mL

    asked by Anonymous
  101. statistics

    A professor is interested in the relationship between the number of hours students study for a quiz and their quiz grades. She asked each student to record the number of hours that he/she studied for the final exam. She also recorded the students’ grades

    asked by April
  102. math

    Hello there, im doing an equation and its mind boggling me badly so i want to see if im doing something wrong or not. It goes like this: sinx - Squareroot of 3/2 > 0 x € [0,2pi) i start by moving the sqroot of 3.. so i have sinx >sq3/2. as of that my

    asked by paul
  103. Math! Helppppp

    Two poles are place 15 feet apart. One pole is 8 ft high and the other pole is 16 ft high. The top of each pole is attached to the base of the other by cable which run in a straight line. -Find the slopes of the lines defined by the two ropes. -How high

    asked by Kim
  104. Helpppp Math!!!

    The market value (in thousands of dollars)of a certain home is a linear function of t, the time in years since 1990. In 1992 the market value was 68 thousand dollars, while in 1997 the market value was 79 thousand dollars -Find the slope of V as a linear

    asked by Kim
  105. physiology and health

    True or false I realy need help!!!!!! 1) A relationship is a bond between people. 2) Citizenship is the way you conduct yourself as a member of the community. 4) Communication involves only sending messages to others. 5) Passive communicators always stand

    asked by rana
  106. Cost Accounting

    The accounting records of Nu-tonics Inc., include the following information for the year ended December 31, 2013: Materials Inventory as at 1 January 2013 $ 20,000 Materials Inventory as at 31 December 2013 $ 24,000 Work in process Inventory as at 1

    asked by Tami
  107. geometry

    concrete can be purchased by the cubic yard. how much will it cost to pour a slab 17 feet by 17 feet by 2 inches for a patio of the concrete cost $ 40 per cubic yard

    asked by joe
  108. introduction to finance

    mary watson is 24 years old and single, lives in an apartment, and has no dependents. Last year she earned $45,000 as a sales assistant for focused business analytics: $3,910 of her wages was withheld for federal income taxes. In addition, she had interest

    asked by quez
  109. Chemistry

    Provide equations for each of the following: a. Dissociation of a strong base in water solution b. Ionization of a strong acid in water solution: c. Ionization of a weak acid in water solution: d. Ionization of a weak base in water solution: e.

    asked by ASAP!!
  110. physics

    Which of the following situations represents a negative displacement? (Assume positive position is measured vertically upward along a y-axis.)

    asked by valerie
  111. math

    Sara has x ribbons and 4 extra ribbons. Jill has 12 ribbons. Express the number of ribbons that Sara has in terms of x.

    asked by Anonymous
  112. maths

    1234567 x 7654321

    asked by ann
  113. Cost Accounting

    The accounting records of Nu-tonics Inc., include the following information for the year ended December 31, 2013: Materials Inventory as at 1 January 2013 $ 20,000 Materials Inventory as at 31 December 2013 $ 24,000 Work in process Inventory as at 1

    asked by Candy
  114. grammar

    If you try hard enough, you will surely succeed.

    asked by Mohamed
  115. Math

    Find the domain of the function. Write your answer in interval notation. (If you need to enter ∞ or -∞, type INFINITY or -INFINITY.) h(u,v) = sqrt(4-u^2-v^2) u^2+v^2 = ?

    asked by Mia
  116. Chemistry

    1) In the reaction NaOH + H2O --> Na+ + OH-, sodium hydroxide is the: A) Lewis acid B) Brønsted-Lowry acid C) Arrhenius base D) Amphoteric substance E) None of the above (I think it's C) 2) The conjugate acid of the sulfide ion is: A) S^2- B) HS- C) H2S

    asked by Amanda
  117. Language arts plz help

    1. The poet uses all of the following in "Annabel Lee" except (1 point)alliteration. simile. repetition. rhyme. 2. Which of the following best shows that the speaker is still deeply in love with Annabel Lee? (1 point)The speaker explains that he and

    asked by gabe
  118. Statistics

    Tukey's HSD test is used a. prior to performing a one-way ANOVA. b. to determine the amount of difference between group means. c. to determine whether the overall difference among groups means is significant. d. to locate "true" differences after a

    asked by Kevin
  119. Business

    To save on gasoline expenses, Edith and Mathew agreed to carpool together for traveling to and from work. Edith preferred to travel on I-20 highway as it was usually the fastest, taking 25 minutes in the absence of traffic delays. Mathew pointed out that

    asked by Ki
  120. Physics

    A 1.0 m long string is fixed at both ends and has a tension of 80N. The mass of the string is 2 gm. Find the third harmonic of the sound emitted by this string. a. 50 Hz b. 100 Hz c. 200Hz d. 300 Hz

    asked by Freddy
  121. Math

    The length of a rectangle is 11 cm more than its width. The area of the rectangle is 2040 cm^2. Find the dimensions of the rectangle.

    asked by Ara
  122. Math -Help

    you have a space in your garden for 100 small flowering bulbs. Crocus bulbs cost $0.45 each, and daffodil bulbs cost $0.85 each. Your budget allows you to spend $55.80 on bulbs. How many crocus bulbs and how many daffodil bulbs can you buy?

    asked by Sarah
  123. Science

    Which of the following would have the greatest force? an object with low mass accelerating slowly an object with low mass accelerating quickly an object with high mass accelerating quickly

    asked by Anonymous
  124. Physics help

    Let's say you have a plot for Pendulum experiment. Let's assume g for this experiment was measured (from the slope of the plot) to be 9.78 [ms-2. The vertical intercept, however, is 0.011 [s2]. What might this translate to for a measurement of the length

    asked by Anonymous.
  125. chemistry

    How many milliliter of 2.5 M NaOH are neededto neutralize 2.7 ml of a 4.9 M H2SO4 solution?

    asked by kelli
  126. mechanics

    a metal cutting machine has a stroke of 0.7 m. the resistance to cutting varies uniformly from 850N at the beginning of the stroke to 1600N when the cutter has moved 0.5 m. for the last 0.2 m of the stroke the resistance is constant at 1600N. Calculate the

    asked by mayowa
  127. maths

    can some one help me here : if 5 cos x + 3 = 0 and 180 degrees < x < 306 degrees , find the value of 3 tan x + 25 sin^2 x

    asked by nokuphiwa
  128. grammar - conjanction

    Fill in the blanks with the words those given in the brackets. ( though / after / if / so when / while / for / as / but ) 1)....... poor himself, he tried to help others. 2)We must wait........Ali comes, as......he has all your tickets. 3).......it started

    asked by niya
  129. grammar - conjunction

    Fill in the blanks with the words those given in the brackets. ( though / after / if / so / when / while / for / as / but ) 1)(Though) poor himself, he tried to help others. 2)We must wait (until) Ali comes, (as) he has all your tickets. 3)(When) it

    asked by niya
  130. Algebra

    How do I solve: One leg of a right triangle is 4 m longer than the other. If the length of the hypotenuse is 18 m, how long are the other two legs?

    asked by Allen
  131. calculus

    (x^2-1)/5x+5

    asked by bj
  132. calculus

    x^2-9/8x-24

    asked by bj
  133. Math

    What is the product of 659 and 95

    asked by Muff
  134. Math

    Hector has $450 and saves 20 per week. Tim has $1200and spends $30 per week.write a system equation for this situation

    asked by Elena
  135. Statistics

    In one-way ANOVA involving three groups, the alternative hypothesis would be considered correct if, in the population, a. all means were equal. b. two means are equal but the third is different. c. all three means have different values. d. either (b) or

    asked by Kevin
  136. algebra

    Write a ratio in simplified form of the area of the shaded figure to the area of the figure which encloses it. I have a square with height 5w and width 5w. Enclosing it are a right triangle on each side, which have a width of 6 and have the square's height

    asked by Anonymous
  137. algebra

    the pitch of a roof is the ratio of the rise to half span. If a roof has a rise of 6 feet and a span of 20 feet what is the pitch. Thank you

    asked by Mary
  138. Trig

    What is the sum of the arithmetic series where n=100 , t1=7 and t2=205

    asked by Kiki
  139. math

    Terry wants to buy one pair of moccasins. She can choose from some that costs $22.50, $27.00, $20.95, and $24.75. How much will Terry save if she buys the least expensive instead of the most expensive pair?

    asked by Julia
  140. Math11

    You want to buy a used all-terrain vehicle (ATV) that costs $2800.00. You Have $1100.00 in savings and can save $200.00 more a month. Your local credit union offers loans at 6.50% per annum over a term of 12 months. You have a bank credit card with an

    asked by Jerra
  141. Geometry

    Show that each conditional is dales by finding a counterexample. If an animal is a bird, then it is a penguin.

    asked by Alicia
  142. *math (7)

    Evaluate the first partial derivatives of the function at the given point. f(x, y) = x^2 + xy + y^2 + 2x - y ; at (-5, 4) fx(-5, 4) = ? fy(-5, 4) = ?

    asked by Mia
  143. physiology and health

    True or False???? 1) During mediation, a mediator dose not have to maintain confidentiality. 2) Food, shelter, and clothing are baisc needs that parents are expected to provide for their children. 3) Affirmation is the act of giving positive input that

    asked by rana
  144. Engineering

    Three resistors , 50 ohms, 100 ohms, and r3 are connected in a series to a power source with potential difference 48 volts and a current throughout the circuit. Can anyone help me figure out what r3 is ?

    asked by Ashley
  145. Math

    It takes 5 small fish to make 1 1/4 cup of ice cream. How many fish does it take to make 6 cups of ice cream?

    asked by Becky
  146. precalc

    Find the area of a sector and arc length whose central angle is 0.5 radians and a radius of 10 inches.

    asked by Andy G
  147. science

    why do cells created by meiosis only have half the number of chromosomes from the original cell?

    asked by anabelle
  148. grammar

    Is this sentence is correct? He wanted to polish his shoes, for it were covered with mud. or else replace it with they.

    asked by Mohamed
  149. math (3)

    Find the domain of the function. Write your answer in interval notation. (If you need to enter ∞ or -∞, type INFINITY or -INFINITY.) f(s,t)= sqrt(s^2+t^2) s = ? t = ?

    asked by Mia
  150. economic

    what are welfare payments or consumer subsidies

    asked by anathi
  151. Space Exploration

    List three subsystems of a SARSAT satellite and tell what the function of eCh subsystem is. Please help I can't seem to find them.

    asked by Cherie
  152. Math

    Mack rolls a 15-sided cube 45 times, what would you predict the probability to be of Mack's rolling a number less than 5?

    asked by Neid
  153. Physics

    If it takes a particle in SHM 0.60ss to travel from the equilibrium position to the maximum displacement (amplitude), what is the period of oscillation?

    asked by Spaceman
  154. Math

    What is 4x1 1/2?

    asked by Gage
  155. statistics

    It is known that the population mean for the Quantitative section of the GRE is 500, with a standard deviation of 100. In 2006, a sample of 400 students taking the GRE, whose family income was between $70,000 and $80,000, had a quantitative GRE score of

    asked by Lee
  156. 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
  157. math

    What would the graph look like for the linear function of y = 1/3x -4

    asked by steve
  158. English

    What is 3 point difference between working students vs. non working students?

    asked by Cathy
  159. Math

    If I have 5 yellow marbles and 7 blue marbles, what fraction are yellow?

    asked by Julie
  160. Programming

    Write a function that takes one positive integer value (call it n) as a parameter and produces the sum of the integers between 1 and n. Hint: The sum of the integers from 1 to n is n*(n+1) all over 2 I know this is how the function should look but I am

    asked by Annabelle
  161. french

    unscramble - qobusteiu

    asked by bob
  162. math

    2^x = 0.125

    asked by shegster
  163. Math

    Circle Graphs Month | Snowfall | Percent | Angle Measure November | 1 | ? 1% | ? 3.6 December | 4 | ? 4% | ? 14.4 January | 5 | ? 5% | ? 18 February | 2 | ? 2% | ? 7.2 How would I make a circle graph? Or did I do something wrong? The month and snowfall

    asked by Anonymous
  164. math

    if it takes hannah 6.5 hours to ride moped to gainesville from tamp and dylan travels 30 mph faster and it takes 2.6 to travel same distance how far is gainesville from tampa

    asked by sage
  165. Math

    How long is 3 quarter hours

    asked by Sintia
  166. precalc

    Memphis and New Orleans are approximately on the same meridian. Memphis has a lattitude of 35 degrees north and New Orleans has a lattitude of 30 degrees north. Find distance between them, assuming radius of Earth is 3960 miles.

    asked by Andy G
  167. math

    (x^2-4x+6)(x-3)^-1

    asked by DS
  168. calculus

    9x^3+5x-8 divided by 3x-2

    asked by DS
  169. ap statistics

    Seventy-five (75) people with hypertension were given a new drug for the treatment of their condition. Blood pressure was lowered sufficiently to reduce the risk of serious outcomes in 20 of the 75 patients. 
(B) Calculate a 95% confidence interval for

    asked by emma
  170. calculus

    8x^3 + 27 divided by 4x^2 + 12x +9

    asked by DS
  171. math

    24^2 -10x -21/32^2 -18

    asked by DS
  172. math

    (2y^3 -3y^2 +3y -4)/(y-2)

    asked by DS
  173. math

    what is the volume of a cereal box that is 6.5 inches long 4.25 inches wide and 10 inches tall ?

    asked by evelyn
  174. math

    She also needs three pieces of blue satin that total of 9/4 yards. simplify this sum.

    asked by Jaedon
  175. Product MGT

    At the grocery store, you buy a pack of 18 eggs and decide that when you get down to only 6 eggs you will buy another 18. In this scenario, what is your re order point? In this situation, what is your order quantity ?

    asked by Alice
  176. chemistry

    How many moles of O2 are contained in 5025 L at 26 degrees Celsius and 1.2 atm

    asked by mario
  177. calculus

    3x^2-75/6x+30

    asked by bj
  178. history

    Which of the following state has the least amount of net farm income Answer Are Texas New Jersey Louisiana California I think New Jersey Thank You

    asked by snow
  179. Statistics

    Professor Casey performs a t test of Ho: u1 - u2=0 using a-.01 and finds a significant difference between Xmean1 and Xmean2. From this we can infer. a. a large difference between u1 and u2. b. an important difference betwee u1 and u2. c. u1 and u2 to be

    asked by Kevin
  180. math

    what percentage more is 2200 than 1725.

    asked by Ellen
  181. Statistics

    In order to critical values of t to be precisely correct for testing Ho: u1-u2=0 using small independent samples, we must assume a. ó1 = ó2 b. normality of populations c. u1 = u2 d. all of the above.

    asked by Kevin
  182. Math Help!

    -If one fish is twice as long as another,how do their weights compare? -If one fish is as heavy as another, how do their lengths compare? L- 31,33,35,37,39 W- 250,308,363,420,520

    asked by Kevin
  183. Physics

    A golf ball struck with an initial speed of 41.8m/s. What is the range of the shot if the launch angle is 30.0º?

    asked by Arr-chan
  184. Math

    Math - Cindy, Tuesday, April 29, 2014 at 8:44pm At Bobs diner, it costs $8.00 to purchase two hamburgers and one order of fries. The "family pack" costs 30.00 and comes with six hamburgers and six orders of fries. If the prices are constant,how much does

    asked by Anonymous
  185. calculus

    24^2-10x-21/32x^2-81

    asked by DEAWN
  186. calculus

    8x^3+27/4x^2+12x+19

    asked by DEAWN
  187. calculus

    x^2+5X/(x^3-25x)(x-5)^-1

    asked by Barbara
  188. calculus

    (2y^3-3y^2+3y-4)/(y-2)

    asked by Barbara
  189. calculus

    9x^3+5x-8/3x-2

    asked by Barbara
  190. calculus

    (x^2-4x+6)(x-3)^-3

    asked by Lewis
  191. calculus

    24x^2-10x-21/32^2-18

    asked by Lewis
  192. English help

    What are some interesting facts about Nikki Giovanni's writing?

    asked by Anonymous
  193. Statistics

    Given: The difference between two dependent means is statistically significant. The reason behind this outcome can be difficult to determine when a. population standard deviations are estimated from samples. b. sample size is large. c. a large value of t

    asked by Kevin
  194. math

    If X = 2 4 6 8 y = 1 -2 -5 -8 What is the slope I know that slope = vertical change over horizontal change and rise over run

    asked by steve
  195. Math

    Two dice are rolled what are the odds of getting a smaller number on the second roll? P ( same number or sum greater than 8)

    asked by Chris
  196. Psychology

    The study of sensation and perception is important to a psychologist perception and sensation are the foundation of:

    asked by Dr.Jay
  197. math

    empirical probability and theoretical probability of 2 tails - 210 1 tail - 480 0 tail - 310

    asked by yamille
  198. Math

    You have to choose a battery brand to use in your smoke alarm. Company A's batteries have a mean lifespan of 1.2 years, with a standard deviation of 0.1 years. Company B's batteries have a mean lifespan of 1.5 years, with a standard deviation of 0.9 years.

    asked by Chloe
  199. math

    Can 3t^2+5t-2 be factored?

    asked by Anonymous
  200. progamming concepts

    Write a program that allows the user to input a total dollar amount for an online shopping order and computes and outputs the shipping cost based on the following schedule: Order Total Ship within USA Ship to Canada Less than $50.00 $6.00 $8.00

    asked by Edgar
  201. Trig

    Find the 20th term of an arithmetic sequence with a=1 and d=1/2

    asked by Kiki
  202. Trig

    What is the sum of the arithmetic series where n=50 , t1=9 and t2=331

    asked by Kiki
  203. math

    Simplify by combining like terms. 9m + 5m - 4

    asked by Anonymous
  204. Science

    If you spin a water-filled cup horizontally on a flat table, did you exert force on the water?

    asked by Kathleen
  205. Italian

    Anybody knows italian and can translate a parahraph.?

    asked by ASAP!!
  206. S.S

    Can someone help me figuire out 4 recomendations to build a stronger cuba?

    asked by matt
  207. algebra

    if you multiply a number by 4 and than subtract negative 10, the difference is a negative 26. what is the number

    asked by Mary
  208. algebra

    a certain test us worth 125 points (rounded to the nearest point are need to obtain a score of 75%

    asked by Mary
  209. solid mensuration

    how to solve ABC is a right triangle with C as the right angle and sides AC=6 cm and BC=8 cm. Line segment CD is drawn perpendicular to both AC and BC at C. If CD=12 cm, find the distance from D to midpoint E of AB.

    asked by john roman