1. Social Studies

    Hi, I'm having a really hard time understanding this concept. I know the answers because my teacher told us them but I don't know why they are the answers. Could you explain them please? 1. Professor Roth's rule is that any student who uses a cell phone in
  2. Chemistry

    how to determine the change in the number of moles of gas in the reaction 2H2 g + O2 g= 2H2Ol i thought it was 2 because the product is a liquid but that isn't correct
  3. Math

    2x^3+3x^2-120x to find the critical numbers I took the derivative which is 6x^2+6x-120 so divide by 6 to simplify x^2+x-20=0 so the critical numbers will be (4,0) and (-5,0) but its wrong I don't know y?
  4. Algebra

    How can you factor? 1. x^4 - 4x^2 + 3 2. x^3 - 2x^2 - 4x + 8 Thanks 1. set a = x^2 this should simplify your problem once you've factored the expression, substitute x^2 back in for a 2. For our purposes I don't think this expression can be factored.
  5. math

    simplify and state any restrictions: 1. x+3/x^2+11x+24 - 2x+10/x^2+11x+30 answer: -x-10/(x+8)(x+6) 2. x-4/x^2-8x+16 + 3x+21/x^2+12x+35 answer: 4x-7/(x-4)(x+5) i don't uderstand how to do it. can you please show me the steps. thanks
  6. English

    The following sentence contains a dangling or misplaced modifier. Rewrite the sentence so that its meaning is clear. 7. Walking the dogs in the park on Sunday afternoon, it began to rain hard. I totally don't understand how to rewrite this sentence :( Any
  7. Statistic

    You are the microbiologist at a national food processing chain. Two independent subcontractors are bidding to produce your latest food item that should really boost sales. It is your job to determine which plant should get the bid based on their microbial
  8. math

    Find the entries of the following matrices: (a) the 2 ×2 matrix M for the reflection across the line y = x. (b) the 2 ×2 matrix N for the 90 degree counterclockwise rotation about the origin. (c) the product MN;what transformation does this represent?
  9. Math

    State the number of positive real zeros, negative real zeros, and imaginary zeros for g(x)= 9x^3 - 7x^2 + 10x - 4. The only thing I know is that there are 3 sign changes.
  10. poetry/The Planet on the Table

    what is the meaning of the poem "Planet on the Table" by Wallace Stevens i've asked this a lot of times but no one gives me the meaning. this poem is so confusing
  11. Math

    Let AB be taken as unity, and let it be required to multiply BD by BC. I have only to join the points A and C, and draw DE parallel to CA; then BE is the product of BD and BC. Show that the length of BE is the product of the lengths BD and BC.
  12. economics

    when you are given the units of resource, total product, and marginal product, what do you need to find to determine how many resources the firm will employ, what the MRP would be etc...
  13. college maths

    Write as a product of factors; then find the product. (Points: 5) 0 90 675 150 I think the answer is C but im confuse any other opinions please?
  14. chem

    I have a question that say 2-butyne reacts with hydrogen and butane is the product. Wouldn't 2-butene be the product because there are only 2 hydrogens and therefore they can only break one bond not 2.
  15. Law & Ethics

    . Dr. Bremer opens an office for business and puts up a sign advertising his services. Ingrid, an interested client, sees the sign, phones, and makes an appointment. Which of the following is true? A. No contract has been created. B. An express contract
  16. Physics

    (a)A car travels exactly once around a circle of radius 5.0 m at constant speed of 3.0 m/s. What is the car’s average velocity (magnitude and direction) during this interval? Explain/justify. (b)Repeat the calculation of average velocity if the car
  17. Government

    The Principle of self-government emphasizes majority rule whereas the principle of liberty emphasizes individual rights. There principles A. are universal and are the foundation of all legitimate governments. B. have no real meaning in practice. C. have
  18. math

    how could you use the product 108 and 4 to find the product of 324 and 4?
  19. math

    how could you use the product of 108 and 4 to find the product of 324 and 4?
  20. Algebra

    Need to find the sizes of the product AB and the product BA whenever these exist. We are given A and B A is 4 x 3, B is 3 x 6
  21. Math

    How could you use the product of 108 and 4 to find the product of 324 and 4
  22. math

    To multiply 5 by 3, you can find the product of 2 and 5 and the product of 1 and 5 and ________them.
  23. eXpOnEnT mAtH

    write each product as the product of the same factor: 1.)5 Ex:3 2.)a Ex:5 3.)(-j) Ex:2
  24. math

    how can you use the product of 108 and 4 to find the product of 324 and 4?
  25. math

    HELP ! I just don't get this. The perimeter of a rectangle is 40 m. The length is 5m more than twice the width. Find the dimensions. What is the length? What is the width? I need to simplify my answer... PLEASE HELP ME>
  26. Urgent math

    so I tried to expand this question and I got x^3 *x2, i don't know if it's right but if not can I get a step by step explanation please, Expand (2x + y^2)^5. (Simplify your answer completely.)
  27. English

    Did I do this correctly?? Select the correctly written sentence in this group. A. Spending way too much money on his old car, Fred's salary just wasn't enough. B. Spending way too much money on his old car, Fred soon found he'd used up his salary. (my
  28. Chemistry! Test tomorrow, pls help !

    we're given the equation: C6H6(l)+Br2(l) --> C6H5Br(l)+HBr(g) you need to prepare 50.0g pf bromobenzene and you expect no more than a 75% yield. How much benzene should you begin with if the yield is 75%. i know that % yield = (actual/theoretical) * 100
  29. Presidents

    Can someone please find me a powerpoint presentation over President Andrew Johnson? Thanks I put "Powerpoint, Pres. Andrew Johnson" into Google and got a number of presentations. Here is the result.
  30. microeconomics

    Hi, I have to answer the following question: A person with the utility function U(x, y) = y + x^2 has convex preferences, true or false? I don't know how to do it, do I put U(x,y) = to a K and make up some bundles? Can someone please explains the step to
  31. History Paper

    What impact have the following conflicts had upon the US? (WWII, Korea, Vietnam, the Wars in Gulf, Iraq, and Afghanistan.) I have an outline of what I'm going to write but I just don't where to start, how to put it in words.
  32. Grammar Check

    Firstly My teacher has said no "you or yous" in the whole of the essay. So if I put "Keep Your Mind on the Road" as a title.. is it appropriate? Should I put "Keep the Mind on the Road" instead? Moreover, my friend says they are some grammar mistakes in my
  33. Pre-algebra

    Solve. 29x – 2(9x – 0.455) = 10x + 0.525 Give us you thinking on this so we can help you solve the equation. What is it you don't understand about solving this eqution? 29x –2(9x – 0.455) = 10x + 0.525 29x – 18x – 0.91 = 10x + 0.525 11x –
  34. math

    a triangular road sign has a height of 8 feet and a base of 16.5 feet. How much larger in ares is this sign than one with a height of 4 feet and a base of 8.25 feet? Please explain fully and show how you got the answer.
  35. Chemistry

    Consider a saturated solution of calcium fluoride in 0.086 M potassium nitrate. Complete the following tasks, and then answer the question. a) Write the chemical equation corresponding to Ksp. b) Write the defining expression for the thermodynamic
  36. Grade 12 Calculus

    For an outdoor concert, a ticket price of $30 typically attracts 5000 people. For each $1 increase in the ticket price, 100 fewer people will attend. The revenue, R, is the product of the number of people attending and the price per ticket. a) Let x
  37. pre-Calculus

    Make a conjeture about the symmetry of a) a product of two odd functions b) a product of two even functions c) a product of an odd function and an even function
  38. Math quick question!

    A rectangular garden has an area if 12a^2-5a-2m^2 A.) Write the area as the product of two binomials with integer coefficients B.) the garden is to be completely enclosed by a path 1 m wide. find and simplify an expression for the area of the path C.) the
  39. Mathematics

    Don is planting flowers in the school garden's planter box. The planting are is five and one-half feet long and 10 inches wide. Each plant is 2 inches wide. There must be 8 inches of space between the flowers. What is the largest number of plants he can
  40. chemistry

    Magnesium can be produced by reaction of magnesium oxide (MgO) with silicon (Si). The by-product of the reaction is magnesium orthosilicate (Mg2SiO4). A reactor is charged with 183.0 kg of MgO and 116.0 kg Si. Assume the reaction goes to completion.
  41. Precalculus

    You are given the dollar value of a product in 2013 and the rate at which the value of the product is expected to change during the next 5 years. Use this information to write a linear equation that gives the dollar value V of the product in terms of the
  42. math

    simplify: -8+c+(-10) simplify: -12-w+20 simplify: -3(2y-9)+y
  43. Math, Help Please IF you can

    Chapter 6, Section 6.1, Question 036 The function g(x) is obtained by shifting the graph of y=x^2 If g(3) = 25 (a) g is the result of applying only a horizontal shift to y=x^2 g(x) = (b) g is the result of applying only a vertical shift to y=x^2 g(x) = g
  44. vertical bar graoh

    I had to measure students in my class. I measured their hieghts in inchs but converted the numbers to centimeters and meters. Now i have to construct a vertical bar graph showing height on the X axis and number of people on the Y axis. I have a blank
  45. Business Mathematics

    A local travel agent is organizing a charter ride to a well known resort. The agent has quoted a price of $30 per person if 100 or fewer sign up for the ride. For every person over the 100, the price of the ticket for all will decrease by $2.50. For
  46. Math

    Simplify Completely: 1260/4410 How is this process accomplished? I spend 1 hour trying each number trying to factor the numerator and denominator squared or cubed and get too frustrated, resulting in no answer at all Thanks for your help!
  47. chemistry

    A unknown piece of metal is placed into a container of acid. Hydrogen gas was produced as a result. The unknown metal could have been ? Ti is the answer, but I don't understand why.
  48. Marketing Management

    Describe a product that entered the market over the past two to three years and succeeded. Why did it succeed? Describe a product or service that you saw (or experienced) fail over the past five years. What factors influenced the failure? How did the
  49. math

    Pregnancy Test Results Positive Test Result (Pregnancy is indicated) Negative Test Result (Pregnancy is not indicated) Subject is pregnant 80 5 Subject is not pregnant 3 11 a) Based on the results in the table, what is the probability of a women being
  50. Algebra

    5. Find the x and y intercepts of each linear equation. Be sure to write your answers as ordered pairs. y = 3x - 6 6y = -x + 2 The y intercepts is when x=0 So put in x=0 in each, and solve for y. The x intercepts is when y=0, put in y=0 and solve for x. I
  51. ALGEBRA

    The costs of doing business for a company can be found by adding fixed costs, such as rent, insurance, and wages, and variable costs, which are the costs to purchase the product you are selling. The portion of the company’s fixed costs allotted to this
  52. english writing

    how would you say "as a result" in other words? Im writing a report and I cant repeat all the time as a result of the meeting...
  53. Psychology Question-DESPERATE FOR HELP!!!

    People typically adjust to a group's social norms by: 1.paying attention to the negative consequences that result when someone violates one of those norms. 2.noticing the differences among group members' behaviors. 3.asking a group leader to explain why
  54. Algebra

    I don't understand how to do the folliwing problems. Find and simplify the difference quotient f(x+h) -f(x)/h, h cannot equal 0 for the given formula. 1. f(x)=5x^2 options: a. 5, b.5(2x+h), c. 10/h +x+5h, d. 5(2x^2+2xh+h^2)/h 2. f(x)=x^2+3x+9 options: a.
  55. Algebra

    I don't understand how to do the folliwing problems. Find and simplify the difference quotient f(x+h) -f(x)/h, h cannot equal 0 for the given formula. 1. f(x)=5x^2 options: a. 5, b.5(2x+h), c. 10/h +x+5h, d. 5(2x^2+2xh+h^2)/h 2. f(x)=x^2+3x+9 options: a.
  56. anyone plz check if its right

    (4q+2)-(2q-3) if i simplify it will it be 2q+5? correct You can drop the parentheses and rearrange the terms to get (4q+2)-(2q-3)=4q-2q + 2-(-3)=2q+5 definately correct! i don't think that it is that hard if you drop the brackets you can't doubt it!
  57. Math

    Can someone please help me? I have to turn in this homework really soon and I'm only stuck on this last question. "Describe how you would use the distributive property to simplify 39 x 5" I don't know how Distributive property works and if somebody could
  58. Managerial Economics

    This is some HW for a Managerial Econ class. I've got what I think are the answers, and I'd just like someone to read over my reasoning & check my answers. Any assistance is appreciated. Thanks! 2.) A recent study of the Madison, Wisconsin market by
  59. Research Paper

    WHat do I do if I have a a source but I don't have the authors name and I have to put it in the paper...?understand.? Many internet sources don't list the author. You can use the URL and title of the site. oh ok thank you...so for example: blah blah
  60. math

    The formula for the surface area of a cylinder is A=2πr^2+2πrh. (A)Solve for r and simplify the result, if possible. (B) If the surface area of a cylinder is 100 square feet and the height is 40 inches, what is the radius of the cylinder in units of
  61. The Hunger Games

    Has anyone read the Book "The Hunger Games", I needed a little bit of information on it. I've read it as well and am trying to point out Peeta and Katniss's skills during the hunting games, but I don't really know how to do that in point form. I am
  62. English

    I forgot to include the following sentences. 1)1)About half an hour before take-off you go to your gate number, where you wait before you get on the plane. Finally, you board the plane and find your seat. 2)If you have a hand luggage, you can put it under
  63. Calculus - Second Order Differential Equations

    Solve the boundary-value problem. y''+5y'-6y=0, y(0)=0, y(2)=1 r^2+5r-6=0, r1=1, r2=-6 y=c1*e^x + c2*e^-6x y(x)=c1*e^x+c2*e^-6x y'(x)=c1*e^x-6*c2*e^-6x y(0)=c1+c2=0, c1=-c2 y(2)=c1*e^2+c2*e^(-12)=1 -c2*e^2-6c2*e^(-12)=1 -c2(e^2-6*e^-12)=1
  64. Algebra

    Simplify the expression (3y+1)^2 + (2y-4)^2 I would start by expanding the two sets of parentheses, then combining like terms. Then take a look at the results and see if it can be factored or otherwise simplified. For example, the first one is 9y^2 + 6y
  65. math,help

    can someone help me plz...last problem simplify (7 + radical (5))(7- radical (5)) for this one i have no idea (a+b)*(a-b)= a^2 - b^2 memorize that, it is the factors of the difference of squares. In this case, a=7, b= sqrt5 so, it simplifies to 49-5=44 So
  66. Intermediate Algebra Simplify

    Simplify: this is a triple decker fraction 1/a + 1/c divided by a^2 - c^2 divided by ac I am stuck on this one please help.
  67. College Math II

    Rationalize the denominator and simplify. sqrt(6)/4srqrt(3) + sqrt(2) = I cannot figure out how to do this and simplify. Can someone help me. Thanks.
  68. Hate Math

    Consider the expression: (28/4). 5-6 + 4square. Explain the order of operations you would use to simplify this expression. then simplify it.
  69. algebra

    How do you simplify [2/(x+4)]+2 ----------- [3/(x+4)]+1 I know the answer is 2(x+5)/(x+7), but I have little idea how to get there! Please help?! multiply your fraction by (x+4)/(x+4) you end up with [2 + 2(x+4)]/[3 + (x+4)] simplify and you will get your
  70. math

    I don't understand how to simplify this. Please help! (1-2cos^2ө)/ (sin ө-cosө) + cotө
  71. Math

    I really need help solving this! For questions 6-7, simplify the expression. 6. -6 - 7(c + 10)(1 point) A. 64 - 7c B. -76 - 7c C. 4 - 13c D. -16 - 13c I don't know which to choose, I need help solving this!
  72. Math - Complex Numbers

    Could someone show me how to get the work for: 3/4 (sqrt)-16/25 ? The answer says 3/5i. Could anybody tell me how to get there and work with complex fractions and simplify them? Thanks! 3/4 SQRT(-16/25) 3/4 SQRT( 16/25*-1) 3/4 *4/5 *SQRT( -1) but the sqrt
  73. Philosophy

    What is the meaning of validity, truth, and soundness as they relate to the area of logical syllogisms? What are the two formal fallacies deductive and inductive What is the meaning of validity, truth, and soundness as they relate to the area of logical
  74. Economics

    A newspaper story on the effect of higher milk prices on the market for ice cream contained the following: "as a result (of the increase in milk prices), retail prices for ice cream are up 4 percent from last year... and ice cream consumption is down 3
  75. MATH

    1. Evaluate. 54 divied (42 + 2) 2. Evaluate 120 cal/g x 4 g. Be sure to use the proper units. A) 480 g B) 480 g/cal C) 480 cal D) 480 cal/g 3. Prime numbers that differ by 2 are called twin primes. Examples are 3 and 5, 5 and 7, and so on. Which pair of
  76. Mircoeconomics

    Figure 3-1 ____ 2. Refer to Figure 3-1. Assume that Cliff and Paul were both producing wheat and corn, and each were dividing their time equally between the two. Then they decide to specialize in the product they have a comparative advantage in. As a
  77. statistics

    When you add the values 3, 5, 8,12, and 20 and then divide by the number of values, the result is 9.6. Which term best describes this value: average, mean, median, mode, or standard deviation?
  78. statistics

    When you add the values 3, 5, 8, 12, and 20 and then divide by the number of values, the result is 9.6. Which term best describes this value: average, mean, median, mode, or standard deviation?
  79. phsyics

    The x and y components of a certain force are measured and found to be Fx = (68 ± 3)N and Fy =(42 ± 2) N, respectively. Calculate the magnitude of this force? expressing your result to the proper number of significant figures.
  80. staticis

    3. When you add the values 3, 5, 8, 12, and 20 and then divide by the number of values, the result is 9.6. Which term best describes this value: average, mean, median, mode, or standard deviation
  81. statistics

    When you add the values 3, 5, 8, 12, and 20 and then divide by the number of values, the result is 9.6. Which term best describes this value: average, mean, median, mode, or standard deviation?
  82. Taylor seires

    f(x) =ln (1-x) a) Compute f'(x), f''(x), f'''(x). Spot the pattern and give an expression for f ^(n) (x) [the n-th derivative of f(x)] b) Compute the MacLaurin series of f(x) (i.e. the Taylor series of f(x) around x=0) c) Compute the radius of convergence
  83. American History

    3. In dissent, Justice Harlan wrote the "real meaning" of the railcar segregation law was to suggest that "colored citizens are so inferior and degraded that they cannot be allowed to sit in the public coaches occupied by white citizens." How might we
  84. Algebra: Help Please

    For the given function, compute the missing values in the following table. f(x) = 8x i got the negatives wrong, but I know how to solve for it. Is there a reason it is wrong? -3: -1/512 -2: -1/64 -1: -1/8 (^These were wrong, but I don't know how to solve
  85. Math

    A cold yam is put into a hot oven, the temperature of the yam begins to rise. The rate R in degrees per minute at which the temperature rises is governed by Newton's Law of Heating, which says that the rate is proportional to the temperature different
  86. HELP! MATH

    cold yam is put into a hot oven, the temperature of the yam begins to rise. The rate R in degrees per minute at which the temperature rises is governed by Newton's Law of Heating, which says that the rate is proportional to the temperature different
  87. Calculus

    A cold yam is put into a hot oven, the temperature of the yam begins to rise. The rate R in degrees per minute at which the temperature rises is governed by Newton's Law of Heating, which says that the rate is proportional to the temperature different
  88. pre-calculus

    given x = 1,110 degrees Find sinx, cosx, tanx, cotx, secx, cscx, without using a calculator. Each result should be a fraction. No decimals involved... I don't even know where to begin, i missed a class, so please explain the work fully, Thanks kenny
  89. Algebra 1 Foundation Concepts rewrite

    1. Write an algebraic expression for the following word phrase: the quotient of r and 12. (1 point) A)r • 12 B)r + 12 C)r ÷ 12 F)r – 12 2. Write a word phrase for the algebraic expression 3x - 7. (1 point) A)the difference of three times a number x
  90. PROBATION and PAROLE

    1) Sigmund Freud: A. is considered the father of behaviorism. B. stressed the importance of the unconscious. C. considered crime as essentially an environmental failure. D. developed reality therapy as a mode of rehabilitation. 2) According to
  91. Science (Chemistry)

    Hello DrBob222 Regarding the answer you gave me thank you very much. However when you expand the denominator, I don't get -0.14 but I get -0.28. I get that because when I first expand I get 0.0049 - 0.14x - 0.14x + 4x^2. So when I simplify that I get
  92. MATH

    Give the number whose hundreds place is one-third of the greatest one-digit number, the tens place is twice the hundreds place divided by 2, and the three digits in the thousands period is the product of the digits in the units period.
  93. algebra

    the winninq three-digit number in a drawing for a door prize had the same units and hundreds digit. the product of its units and tens digits was 5 less than twice the sum of its digits. its middle digit was one more than twice its units digit. What was the
  94. math

    express this in binomial: 2 4ez (4e-z) the 2 is the square.. can anyone teach me how to do this??? I'm a little unsure what your question is asking for here. Ordinarily, a binomial is an expression with two variables and some positive power, e.g. (x+y)^2
  95. Calculus

    I don't know limits fairly well. The problem is prove the limit using definition 6, lim x -> -3, 1 / (x+3)^4 = infinity. The books definition for definition 6 is, let f be a function defined on some open interval that contains a, except possibly at a
  96. PreCalc

    1) Determine the value of r (put this number in the first blank) and then determine the value of the 10th term of the geometric sequence. Do not use any decimals or mixed numbers in your answers. Reduce all fractions to lowest terms. a1 = 2 and a4 =
  97. Business/ social studies

    _______ is when a product is included in a show or movie. a.product placement b.a commercial c.promotion d. institutional advertising
  98. multiple choice economics

    Milk is considered a commodity because it is which of the following? A. bought in many different ways B. an inexpensive product C. the same no matter who sells it D. an agricultural product I think C..?
  99. English

    They are the definitions of 'another' 1. one more person or thing of the same type 2. DIFFERENT a different one not the same thing, person etc, but a different one =================================== 3. One man said, "Yesterday, I killed a big dragon with
  100. English

    I included my doubts in short sentences. Thank you. 1) What/how do you call a woman's suit made up of a jacket and a pair of trousers? I don't really know. 2) How do you call very short socks, which are completely hidden by the shoes and are usually worn