Questions Asked on
November 17, 2013

  1. Algebra

    What is the riddle to Algebra with Pizzazz worksheet number7?

    asked by Anonymous
  2. Calculus - Optimization

    A fence is to be built to enclose a rectangular area of 800 square feet. The fence along 3 sides is to be made of material $4 per foot. The material for the fourth side costs $12 per foot. Find the dimensions of the rectangle that will allow for the most

    asked by Jess
  3. Help with Science

    1. Which of the following is an example of an environmental pressure? A. The air pressure in the atmosphere. B. A lake that is gradually running out of water. C. A fight between two members of the same species. D. Breeding between two members of the same

    asked by Lilstar
  4. grammar

    Which part of speech is the capitalized words in this sentence? Four score and seven years ago our fathers brought forth on this continent, a NEW nation, conceived in Liberty, and DEDICATED to the proposition that all men are created equal. Now we are

    asked by Danny
  5. college algebra

    An isotope of lead, 201Pb, has a half-life of 8.4 hours. How many hours ago was there 40% more of the substance? (Round your answer to one decimal place.) ____hr

    asked by Dee
  6. Chemistry

    Buffer capacity is a measure of a buffer solution\'s resistance to changes in pH as strong acid or base is added. Suppose that you have 165 mL of a buffer that is 0.360 M in both benzoic acid (C6H5COOH) and its conjugate base (C6H5COO–). Calculate the

    asked by Brody
  7. physics

    A rock is suspended by a light string. When the rock is in air, the tension in the string is 38.2 N. When the rock is totally immersed in water, the tension is 28.9 N. When the rock is totally immersed in an unknown liquid, the tension is 17.4 N. What is

    asked by Kyleigh
  8. Business 101

    1. Carmen Santiago works for a number of businesses as a “consultant.” She has helped design accounting systems, provided accounting services, and analyzed the financial strength of her clients’ businesses. Carmen is working as a A. public

    asked by Catherine
  9. Math

    Suppose the first Friday of a new year is the fourth day of that year. Will the year have 53 Fridays regardless of whether or not it is a leap year? What is a rule that represents the sequence of the days in the year that are Fridays? How many full weeks

    asked by Anonymous
  10. math- please help

    What is the best sequence of names to identify this set of numbers? (1 3/5,-10, 0.51(the one is repeating), TT,17) 1.(rational,integer,irrational,irrational,natural) 2. (rational,irrational,rational, irrational, whole) 3.rational,real,rational,real,

    asked by B8
  11. Finance

    You have just purchased a new warehouse. To finance the purchase, you have arranged for a 30-year mortgage loan for 80 percent of the $2,800,000 purchase price. The monthly payment on the loan will be $22,000. a. What is the effective annual rate (EAR) on

    asked by lp
  12. college algebra

    In 4 years, 30% of a radioactive element decays. Find its half-life. (Round your answer to one decimal place.) _____ yr

    asked by Dee
  13. Math

    There are about 7 billion people on Earth. Suppose that they all lined up and held hands, each person taking about 2 yards of space. a. How long a line would the people form? b. The circumference of the Earth is about 25,000 miles at the equator. How many

    asked by Brandon
  14. Density Problem

    The moon has radius 1740 km and mass 7.35x10^22? kg.What is its average density?

    asked by xavier
  15. physics

    Suzie (of mass 58 kg) is roller-blading down the sidewalk going 36 miles per hour. She notices a group of workers down the walkway who have unexpectedly blocked her path, and she makes a quick stop in 2 . 4 seconds. What is Suzie’s average acceleration?

    asked by jay
  16. geometry easy

    The sides of a triangle are 8,15 and 18 the shortest side of a similar triangle is 10 how long are the other sides? Find the scale factor of similar triangles whose sides are 4,12,20 and 5,15,25 Assume that traingle xyz is similar to triangle rpn with

    asked by barbie lee
  17. wlac

    Kit borrowed $15,500 at 11% ordinary interest for 120 days. After 70 days, she made a partial payment of $3,000. What is the final amount due on the loan?

    asked by oscar
  18. introduction to health care

    coders play an important role in a.reimbursement and research b.managing release of patient information c.health record documentation d.denying medical claims my answer is a

    asked by susue
  19. Math

    Tell whether the sequence is arithmetic. If it is, write a function rule to represent it. 0.2, -0.6, -1.4, -2.2 This is an arithmetic sequence, but I do not understand the function rule of A(n) = 0.2 - 0.8(n-1), which is the given answer.

    asked by Anonymous
  20. Chemistry

    Buffer capacity is a measure of a buffer solution\'s resistance to changes in pH as strong acid or base is added. Suppose that you have 165 mL of a buffer that is 0.360 M in both benzoic acid (C6H5COOH) and its conjugate base (C6H5COO–). Calculate the

    asked by Brody
  21. geometry

    A monument in the form of a marble cylinder has a circular base with a radius of 1.5 meters. The altitude of the monument is 3.5 meters. How many cubic meters of marble does this monument contain? A. 7.07 m^3 B. 21.21 m^3 C. 24.74 m^3 D. 6.19 m^3

    asked by lauren
  22. physic

    Suzie (of mass 58 kg) is roller-blading down the sidewalk going 36 miles per hour. She notices a group of workers down the walkway who have unexpectedly blocked her path, and she makes a quick stop in 2 . 4 seconds. What is Suzie’s average acceleration?

    asked by jay
  23. geometry

    What is the altitude of a rhombus if its area is 50 square meters and the length on one side is 12.5 meters? A. 10 m B. 4 m C. 7.5 m D. 12.5 m

    asked by lauren
  24. geometry

    If a decorative sign in the form of a circle has a diameter of 10 feet, what it the area of the sign, to the nearest square foot? A. 79 ft2 B. 16 ft2 C. 157 ft2 D. 31 ft2

    asked by lauren
  25. Statistics

    Of 500 randomly selected people in new york city, 210 people had O+ blood. "58 percent of the people in NYC do not have type O+ blood" Is the statement descriptive statistics or inferential statistics?

    asked by kitty
  26. Physics

    A uniform solid ball rolls smoothly along a floor, then up a ramp inclined at 13.5 degrees. It momentarily stops when it has rolled 1.65 m along the ramp. What was its initial speed?

    asked by Kelsey
  27. Business math

    Find the installment price of a recliner bought on the installment plan with a down payment of $90 and six payments of $109.86

    asked by Anonymous
  28. Calculus

    Suppose that a population develops according to the logistic equation dP/dt = 0.06P−0.0001P^2 where t is measured in weeks. 1) The carrying capacity is . 2) The growth rate k is . Use your calculator to sketch a direction field for this equation. Sketch

    asked by Sarah
  29. algebra

    Remove the parentheses from the following expression, and combine like terms: (2x + 3y – 4z) – (x – y – z) A. 3x + 4y + 5z B. 3x + 4y – 3z C. x + 4y – 3z D. x + 2y – 5z

    asked by amanda
  30. Algebra

    Concrete forming tubes are used as molds for cylindrical concrete supports. The volume V of a tube is the product of its length l and the area A of its circular base. You can make 2/3 ft^3 of cement per bag. Write a rule to find the number of bags of

    asked by Anonymous
  31. math

    What is the best sequence of names to identify this set of numbers? (1 3/5,-10, 0.51(the one is repeating), TT,17) 1.(rational,integer,irrational,irrational,natural) 2. (rational,irrational,rational, irrational, whole) 3.rational,real,rational,real,

    asked by B8
  32. geometry

    The sides of a triangle are 8,15 and 18 the shortest side of a similar triangle is 10 how long are the other sides? Find the scale factor of similar triangles whose sides are 4,12,20 and 5,15,25 Assume that traingle xyz is similar to triangle rpn with

    asked by barbie lee
  33. Chemistry

    Calculate the pH for each of the following points in the titration of 50.0 mL of a 2.7 M H3PO3(aq) with 2.7 M KOH(aq). (a) before addition of any KOH (b) after addition of 25.0 mL of KOH (c) after addition of 50.0 mL of KOH (d) after addition of 75.0 mL of

    asked by Brody
  34. Precalculus

    Solve the equation for the indicated domain. sec(theta+81 degrees)=2 Theta E[0,360)

    asked by Anonymous
  35. accounting

    Exercise 5-3 Analyzing and recording merchandise transactions-both buyer and seller LO P1, P2 Santa Fe Company purchased merchandise for resale from Mesa Company with an invoice price of $16,000 and credit terms of 3/10, n/60. The merchandise had cost Mesa

    asked by sally
  36. statistics

    Randomly selected students participated in an experiment to test their ability to determine when one minute(or sixty seconds) has passed. Forty students yielded a sample mean of 61.8 seconds. Assuming that o= 11.7 seconds, Construct and interpret a 99%

    asked by anonymous
  37. Math

    Write a function rule for a sequence that has 25 as the sixth term. How do I do this while starting the function with A(n)?

    asked by Anonymous
  38. Math-Algebra

    Given the table with values for A and r, answer the folowing: r 2 3 4 5 A 12.57 11.31 50.28 78.56 a. What equation represtnts the relationship of the values in the table above? b. Find the constant of variation. c. If r = 8, what would be A?

    asked by Marie Pierre
  39. History Quote

    “Man is not made better by being degraded; he is seldom restrained from crime by harsh measures, except the principle of fear predominates in his character; and then he is never made radically better for its influence.” - Dorothea Dix What exactly does

    asked by K
  40. physics

    A wrecking ball (weight = 4880 N) is supported by a boom, which may be assumed to be uniform and has a weight of 3520 N. As the drawing below shows, a support cable runs from the top of the boom to the tractor. The angle between the support cable and the

    asked by ERsa
  41. Math

    The Pioneer 10 spacecraft passed the planet Jupiter on December 12, 1973, and exited the solar system on June 14, 1983. The craft traveled from Mars to Jupiter, a distance of approximately 1 billion kilometers, in one year and nine months. a.Calculate the

    asked by Aubrey
  42. chemistry

    1. A website promoting the use of alternative energy vehicles and hybrid technologies claims that, \"A typical automobile in the USA uses about 40 gallons of gasoline every month, producing about 750 lbs of carbon dioxide.\" To determine the truth of this

    asked by Claire
  43. internet basics

    seeing an error message on the screen after you click on a link or icon may indicate that your pc doesn't have the correct ? to view the information your looking for a.ISP b.plug ins my answer is a

    asked by susue
  44. chemistry

    which of the following alkane names is correct? a)2-methyl-3-propylhexane b)1-methylnonane c)1,2-dimethylhexane d)4,5-dimethylpentane e)all of the above names are correct PLEASE HELP!!!!GOT STUCK ON IT

    asked by lima
  45. Math

    A pair of newborn male and female rabbits is placed in an enclosure to breed. The rabbits start to bear young ONE MONTH after their own birth. At the end of each month, they have another male-female pair, which in turn mature and start to bear young ONE

    asked by Tracy
  46. physics

    A man seeking to set a world record wants to tow a 104,000-kg airplane along a runway by pulling horizontally on a cable attached to the airplane. The mass of the man is 93 kg, and the coefficient of static friction between his shoes and the runway is

    asked by Hanna
  47. chemisty

    When magnesium metal and an aqueous solution of hydrochloric acid combine, they produce an aqueous solution of magnesium chloride and hydrogen gas. Using the equation, Mg (s) + 2HCl (aq) MgCl2 (aq) + H2 (g), if 24.3 g of Mg and 75.0 g of HCl are allowed to

    asked by kim
  48. Social Studies (History)

    What dived the Federalists and hurt John Adams chance for reelection? a) states rights b) a treaty with France c) Neutrality Act d) war with France my answer is a treaty with Franc

    asked by Steve
  49. Chemistry

    Hi I need help with these following questions. I have all of the data needed. Calculate the enthalpy change of the reaction for each trial (in kJ) 3. Calculate the heat released by the reaction for each trial (in J): 2. Calculate the heat absorbed by the

    asked by Matt
  50. science

    How much heat is gained (in Joules) by the water (qwater) when a chemical reaction takes place in 100.0 mL aqueous solution and has a temperature increase of 13.26 °C? (Remember cwater = 4.180 J/°Cg)

    asked by brittany sheats
  51. statistics

    A random sample of 100 students from a high school was selected. If a 98% confidence interval estimate for the mean age of students is calculated to be 14.2511 to 14.9489, then the standard deviation of the sample mean is?

    asked by zac
  52. Math

    An irrigation pump can pump 250 liters of water per minute. How many hours should the system work to water a rectangular field 75 m by 135 m to a depth of 3 cm?

    asked by Brandon
  53. Math

    A pair of newborn male and female rabbits is placed in an enclosure to breed. The rabbits start to bear young one month after their own birth. At the end of each month, they have another male-female pair, which in turn mature and start to bear young one

    asked by Tracy
  54. chemistry

    ok so you have 1.76g of salicyic acid(138.12 g/mol) and with 1.11 g of acetic anhydride(102.10 g/mol) a student obtained 1.12g of acetylsalicylic acid( 180.17 g/mol) what is the percentage yield?

    asked by samm
  55. CHEMISTRY

    In a study of the reaction of magnesium with hydrochloric acid, two experiments were carried out. Each uses 1 g of magnesium ribbon, and 50 mL of hydrochloric acid was added to each reaction flask. One of the hydrochloric acid solutions added was more

    asked by Anonymous
  56. Please finish this:)

    This homework question was removed due to a copyright claim submitted by the National Network of Digital Schools Management Foundation (NNDS).

    asked by Megan
  57. Social Studies (History)

    federalists believed in a) free trade b) state banks c) a national bank d) rule by the people my answer is C

    asked by Steve
  58. Physics

    two hundred fifty grams of iron is heated from 27 degree Celsius to 300 degree Celsius . how much ice can be melted and raised to a temperature of 27 degree Celsius by hot iron?

    asked by Lala
  59. Math

    Concrete forming tubes are used as molds for cylindrical concrete supports. The volume V of a tube is the product of its length l and the area A of its circular base. You can make 2/3 ft^3 of cement per bag. Write a rule to find the number of bags of

    asked by Anonymous
  60. math urgent

    what number has the prime factorization of 2 to the 6th power and 5 to the 6th power

    asked by Skylar
  61. statistics

    A fertilizer mixing machine is set to give 4 kg of nitrate for every quintal bag of fertilizers. Five 100 kg bags are examined. The percentages of nitrate are: 2, 6, 4, 3, 1. is there reason to believe that the machine is defective?

    asked by nidhi
  62. math check

    what unit of measure would you use to describe the distance from your house to school? D. Meters a.grams b. kilometers c. liters d. meters

    asked by nina
  63. Math

    An irrigation pump can pump 250 liters of water per minute. How many hours should the system work to water a rectangular field 75 m by 135 m to a depth of 3 cm?

    asked by Jason
  64. introduction to health care

    the reasonable person is a concept found in a.biometrics b.PIPEDA c.IDS d.tort law my answer is d

    asked by susue
  65. Math

    A pair of newborn male and female rabbits is placed in an enclosure to breed. The rabbits start to bear young TWO MONTH after their own birth. At the end of each month, they have another male-female pair, which in turn mature and start to bear young ONE

    asked by Tracy
  66. Economics

    A supply curve does all of the following, except: Answer Uses the ceteris paribus assumption. Holds constant time, place, income, costs of inputs, costs of substitutes, and suppliers' expectations about future prices. Shows the quantity producers are

    asked by Anonymous
  67. English

    There is a placement test for Writing 121 and I need to earn a certain score as a prerequisite. What is the placement test like? Is it time?Can you give me a sample and grade it? We may have to keep track of each other posts.

    asked by Anonymous
  68. business Calc

    A real estate developer would like to analyze his revenue,cost and profit for a specific hosing project that is under construction.last month he sold 20 large houses for m$ 250000 and 10 small houses for $150000.The cost build large houses was

    asked by joe
  69. CHEMISTRY

    The temperature at which molarity of pure water is equal to its molality

    asked by Monika
  70. Math

    With these ideas in mind, evaluate—in a paragraph each—the following data depictions. U.S. Federal Budget Policy Outlays by Category for 2015. (U.S. Federal Budget for 2011.) p. 153. This display shows expected expenditures of the federal government in

    asked by Tracy
  71. chemistry

    I have been having a problem with solving a chemistry problem. The problem requires finding the density in copper at 1305K (the temperature changes when you reset the problem). I think I am using the proper formula, (N_v/N_s=Ae^-changeH_v/kT). My results

    asked by Al
  72. chemistry

    I have been having a problem with solving a chemistry problem. The problem requires finding the density in copper at 1305K (the temperature changes when you reset the problem). I think I am using the proper formula, (N_v/N_s=Ae^-changeH_v/kT). My results

    asked by Al
  73. Science

    A pelican flying along a horizontal path drops a fish from a height of 125 m while traveling 40 m/s. How far does the fish travel horizontally before it hits the water below?

    asked by John
  74. Algebra! any kind of help on this question!

    Larsen’s Sharpening Shop, specializes in sharpening saws. Terry Larsen has determined that the cost of operating the shop is given by the function: C(x) = x^2 – 40x + 430, where x is the number of saws sharpened daily. a. Write C(x) = x^2 - 40x + 430 =

    asked by Dele
  75. Math:)

    This homework question was removed due to a copyright claim submitted by the National Network of Digital Schools Management Foundation (NNDS). Thank you!:)

    asked by Megan
  76. Question About Math

    Hello! I have two math questions: 1.) Marcos has 28 coins that are all nickels (n) and dimes (d). The value of the coins is $2.05. Which system of equations can be used to find the number of nickels and the number the dimes? A. n + d = 28 5n + 10d = 205 B.

    asked by Abby
  77. Physics

    In the figure, a small 0.458 kg block slides down a frictionless surface through height h = 1.05 m and then sticks to a uniform vertical rod of mass M = 0.458 kg and length d = 2.70 m. The rod pivots about point O through angle θ before momentarily

    asked by Jezz
  78. Science

    Consider a c-Si solar cell whose fingers have a resistance R=10ohms. Which would be the finger´s resistance (in ohms) if the finger´s width is doubled and the finger´s height is one third of its initial value

    asked by Maxima
  79. Business math

    John has found a short-term investment opportunity. He can invest $9,000 at 0.75% interest for 21 days. How much interest will he earn on this investment if the interest is compounded daily?

    asked by Anonymous
  80. mth

    Calculate the maturity value of a simple interest, eight-month loan of $15,000 if the interest rate is 4.5%.

    asked by liza
  81. understanding and managing money

    Carmen Santiago works for a number of businesses as a consultant. She has helped design accounting systems,provided accounting services,and analyzed the financial strength of her clients'businesses. Carmen is working as a?

    asked by yusuf
  82. math

    judy is planning a party for her young sister. she has 36 prizes and 24 balloons. what is the greatest number of children that can attend the party so that each child gets an equal number of prizes and its equal number of Balloons

    asked by Skylar
  83. Pre-Calculus

    Find the slope of the tangent line to the curve 2(x^2+y^2)^2=25(x^2−y^2) at the point (−3,−1)? Here's what I did: 2(x^4 + y^4) = 25(x^2-y^2) 2x^4 + 2y^4 = 25x^2 - 25y^2 8x^3 + 8y^3(dy/dx) = 50x - 50y(dy/dx) d/dx(8y^3 + 50y) = 50x - 8x^3 d/dx =

    asked by Ann
  84. Physics

    An electric heater warms a large 0 degree Celsius block of ice at the rate of 200J/s . calculate the mass of the ice that melts in 10 minutes

    asked by Lala
  85. Algebra please help

    Larsen’s Sharpening Shop, specializes in sharpening saws. Terry Larsen has determined that the cost of operating the shop is given by the function: C(x) = x^2 – 40x + 430, where x is the number of saws sharpened daily. a. Write C(x) = x^2 - 40x + 430 =

    asked by Dele
  86. math check

    how much time elapsed from 4:43am unto 12:04 pm? 7hrs 21 mins

    asked by joe
  87. internet basics

    the characteristics of an istant message include all the following except a.its more structured b.it contain abbrevations c.occurs between pc's my answer is c

    asked by susue
  88. introduction to health care

    court awarded compensation for humiliation suffered through professional negligence is an example of a ? damage a.pecuniary b.general c.non pecuniary d.punitive my answer is a

    asked by susue
  89. Chemistry

    I posted a question earlier today to determine the vacancy density in copper. The formation of 1 mole in Cu is 104kJ. Temperature is 1305K. My result is -2.19*10^-22. This does not look right to me. Any ideas. Thanks.

    asked by Al
  90. Math - Alg

    1. The volume V of a right circular cylinder is given as V = pir^2h, where r is the radius of the base and h is the height of the cylinder. a. Express the height of the cylinder in terms of iuts volume and radius of the base. b. Translate the equation

    asked by Marie Pierre
  91. math

    John took out a loan for 51 months but paid it in full after 31 months. Find the refund fraction he should use to calculate the amount of his refund. would it be 51/31?

    asked by Marshall
  92. hvac

    what is the difference between fall-prevention and fall-arresting equipment?

    asked by antonio
  93. Math

    Solve -4x is less then equal to -16. I got x is less then equal to 4. Is this correct I'm kind of confused with this question.

    asked by Alan
  94. English

    1. If I should win the lottery, I will buy everything. 1-2. Should I win the lottery, I will buy everything. 2. If I were rich, I could buy Glalaxy 4. 2-2. Were I rich, I could buy Galaxy 4. 3. If I had studied harder, I would have got better grades. 3-2.

    asked by rfvv
  95. English

    1. If he should go there, he would be killed. 2. Should he go there, he would be killed. 3. If you would try harder, you would surely succeed. 4. Would you try harder, you would surely succeed. 5. If I were to be young again, I would marry her. 6. Were I

    asked by rfvv
  96. English

    1. If I were to be young again, I would marry her. 2. If I were to be young again, I will marry her. (Is #2 grammatical?) 3. If he should go there, he would be welcomed. 4. If he should go there, he will be welcomed. (Are these two sentences grammatical?

    asked by rfvv
  97. Please check if these math questions are correct

    8 = p - 5 Answer: p = 13 21 + y = 35 Answer: y = 14 6x = 54 Answer: x = 9

    asked by Alan
  98. chemistry

    determine the density in copper at 1305K. 1 mole of vacancies in copper is 104kJ. The answer I calculated this time is 8.4572*10^22. I am not sure if this correct. Thanks.

    asked by Al
  99. chemistry

    A p-n junction is obtained at a depth of 3 x 10-3 cm below the surface by diffusion of antimony (Sb) into p-type germanium. What is the donor concentration in the bulk germanium if the diffusion is carried out for three hours at 790 C? Express your answer

    asked by abc
  100. Algerba!

    Solve inequality and put solution set in interval notation. z^2+2z+6>0

    asked by Dele
  101. math

    two of the angels in a triangle measures 48 degrees and 79 degrees. what is the measure of the 3 angle?

    asked by joe
  102. 9th Grade Math

    How to change 84.9% and 88.1% to a decimal? Would it be 0.849 and 0.881?

    asked by Tony
  103. calculus

    A traveller employs a man to drive him from Sydney to Melbourne. Running costs of the car, which are also paid by the traveller, are k*v^3 dollars per hour, v is the speed and k is a constant. Find the uniform speed that will minimize the total cost of the

    asked by jim_segs
  104. calculus

    The cost of running a ship at a constant speed of v km/h is 160 + 1/100*v^3 dollars per hour. a)Find the cost of a journey of 1000km at a speed of v km/h. b)Find the most economical speed for the journey, and the minimum cost. c)If the ship were to have

    asked by jim_segs
  105. Algebra 1 Problem

    This homework question was removed due to a copyright claim submitted by the National Network of Digital Schools Management Foundation (NNDS). Thanks!

    asked by Robert K
  106. 9th Grade Math

    How to write 0.023494751 and 0.040381247 as a percent rounded to one decimal? Would it be 2.3% and 4.0%?

    asked by Tony
  107. Liquid capacity of pitcher

    If a ceramic pitcher is 9.5 inches tall and has a diameter that is 3 3/4 at top and 4 inches at the bottom how many ounces will it hold. There use to be a gallon ratio to inches and you could deduct 30 percent for variating diameters. Do you know the

    asked by Donna
  108. Stats

    A test of hypothesis is performed to determine whether the proportion of Montrealers (population 1) who want the decriminalization of marijuana is greater than the proportion of Torontonians (population 2) who want decriminalization of marijuana. A random

    asked by Emile
  109. Math

    Officer Weihe is in a patrol car sitting 25ft from the highway and observes Jacob in his car approaching. At a particular instant, t seconds, Jacob is x feet down the highway. The line of sight to Jacob makes an angle of theta radians to a perpendicular to

    asked by Crain
  110. iduction to health care

    the overall responsibitity of health information management professionals is a.accurately coding hospital records for reimbursement purposes b.ensuring the quality and accuraxcy of health information c,overseeing the medical transcription process

    asked by susue
  111. stats

    The probability that an individual has hearing loss is .40. The probability that an individual has poor eyesight is .55. If hearing loss and poor eyesight are INDEPENDENT events, what is the probability of a person with hearing loss and poor eyesight?

    asked by lono
  112. Chemistry

    Determine the empirical formula of magnesium oxide. Weight of magnesium, 0.16g, weight of magnesium, 0.24. Please use 24.31g/mol for Mg and 16.00g/mol for O

    asked by Rayman
  113. Chemistry

    Determine the empirical formula of magnesium oxide. Weight of magnesium, 0.16g, weight of magnesium, 0.24. Please use 24.31g/mol for Mg and 16.00g/mol for O

    asked by Rayman
  114. chemistry

    How much energy is given off if 2.5 x 10^5 ml of water is heated from 21c to 40c by burning 10 grams of sugar? What is the fuel value on the sugar?

    asked by Staisha
  115. Math

    A spider and a fly are in a room that has length 8 m, width 4 m, and height 4 m. The spider is on one end wall 1 cm from the floor midway from the two side walls. The fly is caught in the spider’s web on the other end wall 1 cm from the ceiling and

    asked by Jennifer
  116. chemistry

    DDD I may not be using the right formula. I am getting negative answers. Down to last chance.

    asked by Al
  117. college algebra

    Solve the exponential equation using logarithms. Give the answer in decimal form, rounding to four decimal places. (Enter your answers as a comma-separated list.) 4x − 3 = 32x x = _____

    asked by Dee
  118. Chem Lab

    What is the Molar Enthalpy of Neutralization (ÄHn) in kJ/mol if 5.00 moles of HCl(aq) (acid) neutralized 5.00 moles of NaOH(aq) (base) and released 2033 J of heat?

    asked by brittany sheats
  119. BIOLOGY

    b) Make a single base pair substitution mutation in the gene below that results in a protein that is shorter than the protein produce by the original gene. When you are satisfied with your change and its effect, click the "Final Check" button. Note that a

    asked by youlifex
  120. chemistry

    What is the Molar Enthalpy of Neutralization (ÄHn) in kJ/mol if 5.00 moles of HCl(aq) (acid) neutralized 5.00 moles of NaOH(aq) (base) and released 2033 J of heat?

    asked by brittany sheats
  121. science

    Calculate the Molar Enthalpy of Neutralization (ÄHn) in kJ/mol of the reaction between a monoprotic acid and a monoprotic base, given the following information: The temperature change equals 5.30°C, 50.0 mL of 1.00 M concentration of Acid 50.0 mL of 1.00

    asked by brittany sheats
  122. Precalculus

    Solve for the equation in the given domain. (tan theta)(sec theta)=tan theta theta E{real numbers of degrees} BY THE WAY, REMIND ME IF THIS IS THE CORRECT WAY TO FIND THE ANGLE OF... sec theta=2 To find the angle do you set it up like this?? 1/(cos^-1)(2)

    asked by Anonymous
  123. statistics

    A management consultant has analysed a random sample of 40 large firms in order to investigate the mean annual salary of sales managers. She has constructed the following 90% confidence interval for the population mean annual salary: $45,382 to $48,618. In

    asked by zac
  124. English

    1. I don't have to hurry, and neither does she. 2. I don't have to hurry, and nor does she. 3. I don't have to hurry, neither does she. 4. I don't have to hurry, nor does she. (Which ones are grammatical?)

    asked by rfvv
  125. Calculus

    ohaganbooks is offering a wide range of online books, including current best-sellers. a colleague has determined that the demand for the latest best selling book is given by q=(-p^2)+33p+9 (18

    asked by Landon
  126. Marketing

    Discuss in detail several psychological purchasing variables and why they are important to marketers

    asked by Anonymous
  127. Math- urgent

    X-30=14-3x What does x equal? Please show your work.

    asked by Sarah
  128. chemistry

    How many moles of sodium chloride are in 711 mL of a 2.01 M solution of sodium chloride

    asked by Anonymous
  129. Math- urgent

    X+4÷7=-2 What does x equal? Please show your work.

    asked by Sarah
  130. math

    If anyone has "For All Practical Purposes" I am stuck on page 680, Writing Project # 2. It is just to long to post.

    asked by Tracy
  131. Math- urgent

    -3 (x-8)+7x=12 What does x equal? Please show your work.

    asked by Sarah
  132. chemistry

    Knowing that the energy associated with the formation of 1 mole of vacancies in copper (Cu) is 104 kJ, determine the vacancy density (nv/cm3) in Cu at 1284 K. Assume the pre-exponential factor is one. unanswered

    asked by abc
  133. chemistry

    The Young's modulus for a material is 15.0 x 1010 N/m2. The material is stretched to a strain of 6.0 x 10-3. How much elastic energy will be expended? (Express your answer in J/m3)

    asked by abc
  134. chemistry

    The Young's modulus for a material is 15.0 x 10^10 N/m2. The material is stretched to a strain of 6.0 x 10^-3. How much elastic energy will be expended? (Express your answer in J/m3)

    asked by abc
  135. math check

    what is half the difference between 187 and 49? 187-49= 138/2 answer is 69?

    asked by gio
  136. algebra

    Solve. 9 = 2y - 1 = 7y the way to solve this is right on the tip of my tongue but i can't remember exactly how to do it.

    asked by orpheus
  137. Chemistry

    The Young's modulus for a material is 2.0 x 1010 N/m2. The material is stretched to a strain of 5.0 x 10-3. How much elastic energy will be expended? (Express your answer in J/m3)

    asked by youlifex
  138. understanding and managing money

    Guaranteed replacement cost in a homeowner's insurance policy means that the insurance company?

    asked by yusuf
  139. chemistry

    Knowing that the energy associated with the formation of 1 mole of vacancies in copper (Cu) is 104 kJ, determine the vacancy density (nv/cm3) in Cu at 1085 K. Assume the pre-exponential factor is one. unanswered

    asked by abc
  140. calculus

    Find a function f from R to R such that f is continuous at only one point?

    asked by koram
  141. science

    what is the reason for building ponds the internet not saying

    asked by Anonymous
  142. algebra

    Solve. -1 = 1/2h - 7 - 3/4h what's the easiest way to get the answer to this? :o

    asked by orpheus
  143. science

    Balancing equations a) Mg + HCl --> MgCl2 + H2  b) K + H2O --> KOH + H2  c) Li + H2O --> LiOH + H2  d) Fe + O2 --> Fe2O3  Please help

    asked by anonymous
  144. Math

    Write this statement out as an equation and solve. If you multiply a number by 5 and then add 8, the result is 68.

    asked by Davina
  145. Algebra

    –2x(–3x ^2y)(2y) = ? A. 12x^3y^2 B. –3xy^2 C. 3xy^2 D. –12x^3y^2

    asked by amanda
  146. physics

    a wooding block of mass 7.6kg rest on a rough horizontal surface if the surface is 8N calculate the coefficient of friction

    asked by Allison
  147. Statistics

    A credit manager has chosen a sample of size 2,164 to estimate the mean balance of credit accounts to within $0.50. A pilot study of 50 accounts had a mean of $1,219 and a variance of 100. The level of confidence of the interval is: 90% ? 95% ? 98% ? 99% ?

    asked by Em'
  148. physics

    Calculate how thick an absorber needs to be to absorb 25% of the incoming light using the Lambert-Beer law for absorption. How is the small gain coefficient k of a laser defined in relation to the absorption coefficient ƒÑƒ¯

    asked by sawsan
  149. introduction to health care

    supplementary health expeditures are covered by a.PIPEDA b.the Canada health act c.private insurance d.medicare my answer is c

    asked by susue
  150. statistics

    How large a sample would be needed to form a 90% confidence interval for the mean nicotine content of a brand of cigarettes if the nicotine content has a normal distribution with sigma equal to 8.5 mg and the width of the interval (the length of the

    asked by Alex
  151. PHYSICS HELP

    A pulley of mass mp , radius R , and moment of inertia about its center of mass Ic , is attached to the edge of a table. An inextensible string of negligible mass is wrapped around the pulley and attached on one end to block 1 that hangs over the edge of

    asked by Anonymous
  152. POL 201

    Separation of powers entails three distinct branches of government so that

    asked by dana
  153. solid chemestry

    Knowing that the energy associated with the formation of 1 mole of vacancies in copper (Cu) is 104 kJ, determine the vacancy density (nv/cm3) in Cu at 1197 K. Assume the pre-exponential factor is one.

    asked by juanpro
  154. introduction to health care

    which of the following statements is true a.doctors are held to the same reasonable person standard as the general public b. professional standards cans determine if negligence has occurred my answer is b

    asked by susue
  155. math

    how to convert 5/8 to a decimal

    asked by nora
  156. biology mit

    b) Make a single base pair substitution mutation in the gene below that results in a protein that is shorter than the protein produce by the original gene. When you are satisfied with your change and its effect, click the "Final Check" button. Note that a

    asked by juanpro
  157. stats

    how to find the are for a standard normal curve that cuts off the upper 1.1%

    asked by Anonymous
  158. art

    what type of lines do you see in the art piece Kerry James Marshall 1994?

    asked by sara
  159. Chemistry

    How could 2 molecular compounds react to create a precipitate and an aqueous solution?

    asked by Serena
  160. Biology: Endotoxin

    Does endotoxin refer to the LPS or to lipid A?

    asked by Ano
  161. science

    How many cups of water are needed for a plant to begin germinating?

    asked by Anne
  162. math

    How much should Linda set aside now to buy equipment that costs 6,100 in one year? The current interest rate is 0.7% annually, compounded annually.

    asked by Marshall
  163. science

    How many weeks does it take for a seed to start germinating? Does it depends?

    asked by Anne
  164. Math

    The horsepower is a nonmetric unit of power used in mechanics. It is equal to 746 watts. How many watts of power does a 350-horsepower engine generate?

    asked by Brandon
  165. English

    1. In front of the building was a supermarket. 2. In front of the building, was a supermarket. 3. In front of the building a supermarket was. 4. In front of the building, a supermarket was. (Which ones are grammatical?)

    asked by rfvv
  166. Math

    Solve for X. X/8 = -4/9

    asked by Alan
  167. English

    Near the school there was a clothing store. Near the school, there was a clothing store. Near the school was there a clothing store. Near the school, was there a clothing store. (Which one is correct? Do we have to have inversion when the place adverbial

    asked by rfvv
  168. Math- urgent

    -4x-2+3x=4 What does x equal? Please show all work.

    asked by Sarah
  169. BIOLOGY

    You plan to generate many copies of this gene by PCR. You will then insert the PCR product into the plasmid. d) Which two primers from the list below will allow you to use PCR to amplify this gene? Check the two that apply. 5'-GTGCA-3' 5'-CACGT-3'

    asked by youlifex
  170. science

    What is the Molar Enthalpy of Neutralization (ÄHn) in kJ/mol if 5.00 moles of HCl(aq) (acid) neutralized 5.00 moles of NaOH(aq) (base) and released 2033 J of heat?

    asked by brittany sheats
  171. statistica

    A management consultant has analysed a random sample of 40 large firms in order to investigate the mean annual salary of sales managers. She has constructed the following 90% confidence interval for the population mean annual salary: $45,382 to $48,618. In

    asked by zac
  172. statistics

    Consider an upper-tail test of hypothesis for the difference in two population means. The sample data from the first population is: n = 50, x-bar = 110, s = 10. The sample data from the second population is: n = 75, x-bar = unknown, s = 11. We conclude the

    asked by zac
  173. math

    If today is Thursday, what day of the week was it 1000 days ago

    asked by liza
  174. Math- urgent

    1/2 (8-6h)=h what does h equal? Please show your work.

    asked by Sarah