1. Calculus

    Find the limit x->pi/2^+ tan(x) I know the answer is -∞, but I don't understand why. When I simplify to sin(x)/cos(x), I get 1/0^+.
  2. Sex Ed

    Which factors influence teens to be interested in sexuality? I don't really understand this question, can someone simplify this for me? Thanks.
  3. math analysis

    ((x+3)/(x-5))+(5/(x-3)) Simplify I've done this twice and got it wrong both times I have two more problems similar to this and don't want to continue until I understand how to do it.
  4. Math (Proportions)

    Simplify each expression if possible by combining like terms. If not possible, write simplified 2x+9x I don't understand what to do
  5. ELA

    Paired Passages: Sympathy, and An Account of an Experience with Discrimination Paul Laurence Dunbar and Sojourner Truth Sympathy by Paul Laurence Dunbar I KNOW what the caged bird feels, alas! When the sun is bright on the upland slopes; When the wind
  6. Algebra

    The sum of two numbers is fourteen. Using x to represent the larger of the two numbers, translate "the difference between five more than the larger number and three times the smaller number" into a variable expression. Then simplify.
  7. Physics

    A box of books weighing 303 N moves with a constant velocity across the floor when it is pushed with a force of 400 N exerted down-ward at an angle of 38.6 degrees below the horizontal. Find ìk between the box and the floor. Well I know that I have to use
  8. drwl please check

    A shot-putter puts a shot (weight = 70.1 N) that leaves his hand at distance of 1.53 m above the ground. (a) Find the work done by the gravitation force when the shot has risen to a height of 2.18 m above the ground. Include the correct sign for work. (b)
  9. English

    1.Susan made small and cute teddy bears. (In this sentence, what is the meaning of 'teddy'?) 2. I like both Tom and Don. 2-1. I like Tom and Don. 2-2. I want to marry Tom or Don. 2-3. I like neither Tom nor Don. 2-4. I don't like Tom, and I don't like Don,
  10. Math (dont want ans just help figuring this out)

    Length of one Total # of # of side of pattern triangular white (in cm) Shapes used triang- to make pattern ular shapes used 2 4 3 3 9 6 4 16 10 ? ? ? 6 ? ? ? ? ? ? ? ? 20 ? ? Number of gray triangular shapes used 1, 3,6,? ? ? ? ?
  11. Statistics

    For the following set of scores: X Y 6 4 3 1 5 0 6 7 4 2 6 4 a) Compute the Pearson correlation. b) Add 2 points to each X value and compute the correlation for the modified scores. How does adding a constant to every score affect the value of the
  12. Pre-Algebra

    A 5-foot parking meter has a 4-foot shadow from a nearby streetlight. The streetlight is 15 feet tall. How far is the streetlight from the parking meter? Don't want answer, just want formula for figuring out
  13. Stats

    The director of admissions at Kinzua University in Nova Scotia estimated the distribution of student admissions for the fall semester on the basis of past experience. Admissions Probability 1,080 0.5 1,340 0.2 1,660 0.3
  14. math

    HELP! I have a question , and i need it to be where i can understand it. why is a number, any number, is 1 when raised to the 0 power. i need it for an assessment. and i can't find a site that explains anything to me to where i can understand it enough to
  15. Spanish

    For a presentation, I am trying to say "These works of art are no longer made." I'm having trouble figuring out what verb tense I should use, though. So far I have: "Estas obras ya no..." but I don't know how to finish the sentence. Son hecho? Fueron
  16. Precalc

    I am having trouble figuring out this question Jan observes a buoy bobbing up and down through a total amplitude of 8 feet. Beginning at the top of the wave, if the buoy completes a full cycle every 8 seconds, what is the height of the buoy relative to its
  17. Chem Help Please!

    You are carrying out a chemical process according to the equation below. If product C, which is the desired product can decompose to product F, how might you ensure that you stopped the reaction at the optimum point to ensure the maximum yield of C.
  18. Chemistry

    Suppose I put 1 billion bacteria in a 10 ml tube of saline, mix well, and label this tube A. Answer the following questions: 1. Take 1 ml from tube A and put it in an empty tube B. What is the concentration and number of bacteria in tube B?
  19. Chemistry

    Suppose I put 1 billion bacteria in a 10 ml tube of saline, mix well, and label this tube A. Answer the following questions: 1. Take 1 ml from tube A and put it in an empty tube B. What is the concentration and number of bacteria in tube B?
  20. Algebra

    Need help plz. Don't really get this "reversing the digits" What is this really called in math language? Prob:Find the product of 32 and 46. Now reverse the digits and find the product of 23 an 64. The products are the same. Does this happen with any pair
  21. Algebra

    i am having problems understanding.... i don't know how to put it so i will just put what the problem is Write the slope-intercept form of an equation of the line that passes through the given point and is parallel to the graph of each equation 13. (2,-7)
  22. What is the meaning?

    I don't understand this quote "There are decades where nothing happensl and there are weeks where decades happen."?????

    HOW DO U COMPUTE g USING THE EQUATION g=GM/r^2 WHEN GIVEN THE QUESTION IN THIS FORM: "COMPUTE g AT A HEIGHT OF 4 RE ABOVE THE SURFACE OF EARTH" -basically how can i find the answer to a question given in this form
  24. algebra homework help

    Let x be the unknown number. If a number divided by −42 is increased by −89, the result is −87. 8/-42-89=-87
  25. algebra homework help

    Let x be the unknown number. If a number divided by −42 is increased by −89, the result is −87. n/-42-89=-87 or is it n/-42+-89=-87
  26. math

    the cost of painting the circular traffic sign shown below is $3.50 per square foot.how much,to the nearest dollar,will it cost to paint the sign if its diameter measures 36 inches?
  27. english

    I'm having trouble with identifying the word in parathesis in the sentence- The Puritans considered buttons a (sign) of vanity.I think buttons is the direct object and sign a predicate adjective.
  28. Sign Language

    One of the norms shared by all members of Deaf Culture is Cued Speech*** American Sign Language Rochester Method Signed Exact English
  29. English

    1. He saw most of the boys. 2. He saw most of his boys. 3. He saw most of these boys. 4. He saw most of some boys. 5. He saw most of ____ boys. ------------------------------------ Q1: Are the sentences all grammatical? What about #4? Can we use #4? Q2:
  30. physics

    A sign is held in position by 3 cables sign weight 215N, what is the tension in each of the 3 cables
  31. religious education

    i need to design and create a tourist poster for palestines in jesus`s time. im having problems with it because i have googled it and it shows a poster with a black tree on the left hand side and buildings in the middle of the poster. im a bit confused i
  32. English

    Hello. Do you think it's possible to use the phrase "as long as" in the meaning "because", for example: "I can't help him as long as (because) I don't know his problem." Or will it be understood as "while"? Thank you for your help.
  33. Math

    How do you find the percentage of a number? I have no clue how you do that. An example I have is 850 students are attending a camp, 38% of them play musical instruments. What number of people play instruments? I don't get how to solve that and here's
  34. math short response

    i need to write a short response: a number is divided by 2, then is subtracted from the result. what operations are needed to return to the original number? i wrote division and subtraction n/2 - N = ? im not sure how to answer this can you help[
  35. chemistry

    what product is obtained by reacting methylamine with salicylaldehyde in a 1:1 ratio? This is related to your other about salicylaldehyde. The product is an imine and the other product is water.
  36. calculus

    A magician writes a list of numbers, 1 through 10, on the board then turns his back to the board. Two audience members are asked to write different numbers from 1-10 in the first two spaces. One of the spectators adds the two numbers and places the result
  37. English

    Can someone please tell me the format of a COVER page in MLA. I'm looking in my 6th edition book and I find title page but not cover page. I beleive the title goes 1/3 page down, then may 10 lines or so your name, then at the bottom the class, teacher, and
  38. math

    what numbers when you multiply together give you a product of -3 and a sum of 0? if you don't know, just tell me
  39. polynomials

    Can someone check my answer please i don't know if I am doing this right x^ (2):x= sum (x^2 )+ (x)=x^2+x diff (x^2 )-(x)= (x^2-x) Product (¡¼x)¡½^2 (x)=x^2^x
  40. MATH

    THIS IS THE TABLE FORMAT - SUM PRODUCT 3 2 5 6 7 12 15 50 13 36 7 11 8 32 i DON'T UNDERSTAND WHAT TO DO?
  41. algebra

    Can someone please check my work on this problem? For some reason, I get the feeling that I did it wrong. sqrt=square root (by the way) 3-sqrt10 sqrt5+sqrt2 -------- * ---------- sqrt5-sqrt2 sqrt5+sqrt2 (3-sqrt10)(sqrt5+sqrt2) = ----------------------- 5-2
  42. Probability

    The number from 1-100 are written on pieces of paper and put into a box.a number is chosen at random,write down the probability of choosing a factor 24.
  43. English

    I need someone to check my paragraph and tell me if I did it correctly or if I missed something. My assignment was to highlight all of the pronouns, and make sure they agree with their antecedents in number, gender, and person. I put quotation marks around
  44. Psy285

    Is there really such a thing as altruism? Why or why not? What motivates people to help? please help me answer this question I don't know the meaning of Altruism?
  45. economics

    Suppose that a business has developed a very high-quality product and operates more efficiently in producing that product than any other potential competitor. As a consequence, at present it is the only seller of this product, for which there are few close
  46. Math - Exponential Notion

    Can someone explain this to me please, I cannot help my son with his homework Do you mean exponential notation? y ^ x = "y raised to the x power" Yep - sorry what do u need help with? Yes - I am not remembering how to do powers - etc. can their be a number
  47. Algebra 2

    I have a question... I have no idea how to turn this into SRform 2187^(1/3) - 2(24)^(1/3) I saw I could do this 2187^(1/3) - 2(4*6)^(1/3) 2187^(1/3) - 4(6)^(1/3) then I do this 2187^(1/3)/ (6)^(1/3) and I don't get a whole number so I can conclude that...
  48. math

    a designer creates a drawing of a triangular sign on centimeter grid paper for a new business. the drawing has sides measuring 6 cm, 8 cm, and 10 cm, and angles measuring 37°, 53°, and 90°. to create the actual sign shown, the drawing must be dilated
  49. English

    No wonder can last more than three days All good things are three are the same statements ? The meaning of proverbs are same. conquer is opposite of overpower 2 submit 3 subject 4 vanquish 5 master . Piteous and pitiable are the same meaning words?
  50. 4th grade New

    Jason is thinking of a number. He adds 8, multiplies by 2, subtracts 4,and then divides by 2. The result is twenty-four. What number is Jason thinking of?
  51. ps 27

    The sum of two numbers is 120. If four times four times the smaller number is subtracted from the larger​ number, the result is 15. Find the two numbers.
  52. Stats

    2. The population standard deviation for the number of rolls before a 1 is observed. Use this result to construct a 90% Z-interval for the mean number of rolls required before a 1 is observed.
  53. math

    a pet shop owner had an equal number of hamster and puppies for sale. the hamster were put equally int o 4 cages and the puppies were put equally into 12 cages. at the end of the day, he had sold 3 cages of hamsters and 6 cages of puppies. if the total
  54. Geometry

    I'm so confused on distance formula, I know how to calculate it, but getting the final simplified answer is so confusing. Like so on some equations the final answer is just a regular whole number, others is a number with a square root like 3 -/2, or a
  55. again english help

    Ondaatje’s work in “The English Patient is so beautiful and absolute that every sentence in his book has a sense of power in its meaning. His novel gives us mysterious and memorable tales of his characters’ lives. Instead of presenting the story in
  56. chemistry

    does the number 340 have the same meaning as the number 340.0??
  57. English

    The most effective way of controlling the quality of a product is by _______________________________. controlling the processes that make the product disciplining workers for less-than-excellent output examining the end product and correcting any flaws A?
  58. math

    a florist has 20 daisies and 36 carnations. She wants to put the same number of each type of flower into vases. what are the possible number of vases she can use?
  59. Lang. Arts Ms. Sue

    Ms. Sue I don't know if you remember this question, but I got it wrong and I need to know the rule why. I put ...Please come with me, Sarah, and Tom, to pick up Mom's birthday present. He said there is no comma after Tom. I need to know the rule to why you
  60. algebra 1

    Which statement about the product is true? 5.5 square root of 5 A. The product is rational B.the product is irrational** C.the product is neither rational or irrational D.there is not enough information provided to answer the question Which of the
  61. accounting

    Assume that the following transactions affected owners' equity for De Soto Inc. during 2011. Feb. 1- Sold 40,000 shares of common stock in the market. Apr. 1- Purchased 3,000 shares of common stock to be held as treasury stock. Paid cash dividends of $0.50
  62. Math

    I don't know how to answer this. If 10% of a number is 2 less than 20% of the same number, then 80% of the number equals_______.
  63. accounting

    PA11-4 Comparing Stock and Cash Dividends [LO2, LO3, LO4] Ritz Company had the following stock outstanding and Retained earnings at December 31, 2010: Common stock (par $1; outstanding, 500,000 shares) $ 500,000 Preferred stock, 8% (par $10; outstanding,
  64. Chemistry

    If 325mL of a 0.58 M solution of a propanoic acid (a fatty acid) was mixed with excess glycerol what is, the maximum number of molecules of fat or oil that could result?(you will need Avogadros number = 6.022 X 10 to the 23rd power)....I need to show all
  65. Microeconomis

    Why is much more profitable for a company to bring to market a new product than secon? While your statement is generally true, it is not always true. The producer of a new product MAY enjoy some monopoly power for a time. Makers of an existing product are,
  66. Math ms sue please please please help!!!!!!

    1)a bag contains five red marbles and seven blue marbles. you pull one marble out of the bag and replace it before putting out a second marble. what kind of event is this? independent, dependent, or both? 2) A bag contains 5 marbles. Without looking, you
  67. English

    1. He took the watch apart. 2. He disassembled the watch. 3. He broke up the watch. (Are the three the same?) 4. He put the watch together. 5. He assembled the watch. 6. He fabricated the watch. (Do the three have the same meaning?)
  68. probability

    Consider n independent rolls of a k-sided fair die with k≥2: the sides of the die are labelled 1,2,…,k and each side has probability 1/k of facing up after a roll. Let the random variable Xi denote the number of rolls that result in side i facing
  69. Math/Stats

    In the last senatorial election in New Jersey, the republican candidate got 48% of the vote. During the election an exit poll was conducted by radio station WSTAT. Ten voters selected at random where asked if they voted for the republican candidate. (a)
  70. Math

    2. Anita multiplies a number by 2 and then adds her starting number to the product. Amit adds this same original number to itself and then multiplies that sum by 2. The difference between Anita’s and Amit’s results is 9. What is their starting
  71. Final Exam- Honors Physical Science

    how can you determine the number of protons, electrons,neutrons, atomic number, and the atomic mass of an element using the periodic table? Atomic mass is given in the table, as well as the atomic number and atomic mass number. Atomic number is the number
  72. Math - Help!

    The sample space for a roll of two number cubes is shown in the table. (1,1)|(1,2)|(1,3)|(1,4)|(1,5),(1,6) (2,1)|(2,2)|(2,3)|(2,4)|(2,5)|(2,6) (3,1)|(3,2)|(3,3)|(3,4)|(3,5)|(3,6) (4,1)|(4,2)|(4,3)|(4,4)|(4,5)|(4,6) (5,1)|(5,2)|(5,3)|(5,4)|(5,5)|(5,6)
  73. Are all answers right?

    The sample space for a roll of two number cubes is shown in the table. (1,1)|(1,2)|(1,3)|(1,4)|(1,5),(1,6) (2,1)|(2,2)|(2,3)|(2,4)|(2,5)|(2,6) (3,1)|(3,2)|(3,3)|(3,4)|(3,5)|(3,6) (4,1)|(4,2)|(4,3)|(4,4)|(4,5)|(4,6) (5,1)|(5,2)|(5,3)|(5,4)|(5,5)|(5,6)
  74. to SraJMcGin,

    Hello, we are on the next play in english The playboy of seville? Our question is what does Don Juan stand for? Would I put for the answer he seduces women. Also, another question we have is how does the playwright molina portray Don Juan as a hero of
  75. literature

    Why do authors use rhetorical devices in essays? a) to simplify the meaning of the main idea B)to increase the credibility of the essay C)to evoke a personal response from readers E)to show their skill as diverse writers F)to compare two or more essays
  76. MATH

    What are the 3 property names of addition? 1. The Zero Property of Addition- Adding 0 to a number leaves it unchanged. We call 0 the additive identity. 2.Commutative Property of Addition- switching the order of two numbers being added does not change the
  77. Math

    What is the result if you multiply a number of cups by 8 fluid ounces over 1 cup and then multiply the result by 1 cup over 8 fluid ounces?Give an example.
  78. 8th Grade Algebra

    Find each product. { this means the square root sign. 1. (3+2{20)(5+3{45) 2. The length and width of the rectangle are x-5 and 2x-6 a. Write a trinomial that represents that area of the rectangle. b. What is the smallest integer value of x that will give
  79. java

    writ a program that ask a user to inter three integer number and type them to the screen and also print them in different lines .the out put should look like this one . enter a three integer number:123 1 2 3
  80. social studies

    Put each word into a meaningful sentence. Tariff, quota, supply, demand, currency, entrepreneur, human capita, capital goods, gross domestic product. Thank you1 :)
  81. English

    I don't quite understand the meaning of the story "Score/Score" by Phyllis Gotlieb. I can't seem to find much about it on the internet.
  82. Writing an essay, help please?

    Here is what I've done so far: tinyurl(dot)com/25932b5 ( This is a link, so I put spaces there so I could put it) and here are the directions: //tinyurl(Dot)com/243s3q3 I need help filling out the rest of the paper, Can somebody help me fill out the next
  83. English

    1. I totally disagree with you. 2. I totally don't agree with you. (Are both the same? Or are both different in meaning?)
  84. Algebra 2 Answer Check

    Simplify. 1. 5√6 - √24 A: 3√6 2. Evaluate 3y + 5xy - x for x = 4 and y = 2 A: 42 3. Simplify 3x(5y + 4) - 2xy - 10x + 6x^2 A: 3xy + 2x + 6x^2 4. Evaluate 5^-3 A: 1/125 5. Simplify ((-2x^4y^7)/(x^5))^3. Assume all variables are nonzero. A:
  85. chemistry

    Given the reaction: Cu2+(aq) + S2-(aq) CuS(s) What will happen (a) if CuSO4(aq) is added? And (b) if Na2SO4(aq) is added? A. (a) Nothing; (b) Less product will form B. (a) Less product will form; (b) Nothing C. (a) Nothing; (b) More product will form D.
  86. Chemistry

    Given the reaction: Cu2+(aq) + S2-(aq) CuS(s) What will happen (a) if CuSO4(aq) is added? And (b) if Na2SO4(aq) is added? A. (a) Nothing; (b) Less product will form B. (a) Less product will form; (b) Nothing C. (a) Nothing; (b) More product will form D.
  87. chemistry -3.2.4

    Given the reaction: Cu2+(aq) + S2-(aq) CuS(s) What will happen (a) if CuSO4(aq) is added? And (b) if Na2SO4(aq) is added? A. (a) Nothing; (b) Less product will form B. (a) Less product will form; (b) Nothing C. (a) Nothing; (b) More product will form D.
  88. math

    so a=40 and c=35 what is b? of a right triangle. i know you use a^2+b^2=c^2 and i know where to put the information, but i don't know what to do after.
  89. Algebra

    Solve the equation w=Cr^-2 for r. This is what I got so far.... w/C=r^-2 Then I think it's... ok so I don't really know. I want to put w/C=1/r^2 but the r is still not alone and I'm not sure where I'd take it from there. Please help.
  90. Statistics

    I have a problem understanding how to set this problem up and get a solution: Consider a binomial experiment with n = 10 and p = 0.10. a. Compute P(x less than or equal to 2). b. Compute P(x greater than or equal to 1).
  91. Microeconomics

    The president of the United Auto Workers noticed that whenever he negotiates a pay increase for the UAW membership, the number of jobs available for the union membershiop is unaffected for the first few months but over the following months the number of
  92. Math

    How to expand, then evaluate, and simplify this log question: logbase7 (49( 3sqrt x^5)) I put the brackets in myself, I there were originally no brackets nor spaces in the question
  93. Math

    How to expand, then evaluate, and simplify this log question: logbase7 (49( 3sqrt x^5)) I put the brackets in myself, I there were originally no brackets nor spaces in the question
  94. Physics

    A purple beam is hinged to a wall to hold up a blue sign. The beam has a mass of mb = 6.7 kg and the sign has a mass of ms = 17.4 kg. The length of the beam is L = 2.83 m. The sign is attached at the very end of the beam, but the horizontal wire holding up
  95. social studies

    i have a project to do on entrepreneur activity.I have to create a product that people will want to but during the time period of 1400-1600. And create a product product that someone would want to invest in to a joint-stock company. I want to used a
  96. Algebra - Check My Work

    For Question 1-8 Simplify the Radical Expression *** - My Answer 1.√45 3√5*** 2.√180x^2 6x√5*** 3.√150x^3 k^4 5xk^2√6x*** 4.√21y * 5√49y 35y√21*** 5.(The square root sign applies for the whole equation;
  97. Chemistry

    I have spent all afternoon (on Thanksgiving, no less) trying to figure out these post-lab questions. We had to produce a precipitate of a reaction of: 1) 1 ml 1M Na2SO4 + 9mL 1M CaCl2 Our result was .569g 2) 5 ml 1M Na2SO4 + 5 ml 1M CaCl2 Our result was
  98. Probability

    1. The chart below shows the possible options for pants, shirts, and shoes in Tom’s closet. Which tree diagram correctly shows the possible outfits he can wear? Pants- jeans(j) khakis(k) Shirts- yellow(y) blue(b) checked(c) Shoes- sneakers(s) hiking
  99. Chemistry

    When 25.302 is divided by 56.743, the answer should be reported to ____ significant digit(s). The result of the division, 25.302 / 56.743, reported to the correct number of significant digits is _______ When 56.743 is subtracted from 25.302, the result
  100. algebra

    why does the inequality sign change when both sides are multiplied or divided by a negative number? give examples of translate sentences into inequation