Calculus (Answer Check)

71,347 results, page 63
  1. math

    Did i do these problems correctly? 1. 39*(-43)= -1677 I multiply 39 and -43 and the answer was -1677 2. Find absolute value of |-7| and the answer is 7. It is the opposite of what it is. 3. Add. -24 + (-17) The answer is -41. They both are negative so you
  2. geometry

    I have a circle with a radius of 20in. Arc mEGF = 235(not shaded part of circle) find the area of arc EF (shaded sector of circle). My answer was 82.3 in^2 correct answer is 436.3 in^2 I need disrection on this one- I was really off on my answer.
  3. Physics

    Part 1: A car accelerates uniformly in a straight line from rest at the rate of 2.2 m/s2. What is the speed of the car after it has traveled 52 m? Answer in units of m/s. the answer is 15.126 Part 2: How long does it take the car to travel 52 m? Answer in
  4. Chemistry

    A material exhibits an optical band edge at ν=5∗1014 Hz (s-1). a) What is the band edge (in eV) of this material? Answer:2.07; E=hc Above what wavelength do you expect the material to be transparent? Express your answer in nm. Answer: 599.6: landa= C/V
  5. Math

    On a multiple choice exam with 25 questions, the instructor scored the exams as follows: 4 points for each correct answer, -1 for each blank answer, and -6 for each wrong answer. What was the score of a student who had 14 correct answers, 3 blank answers,
  6. SraJMcGin spanish HELP

    a few more spanish questions ahora escribe frases donde expresas una condicion con si 1. Si manana cancelamos la escuela my answer viajre a Estados Unidas. 2. Si el ano proximo me dan un carro nuevo my answer viajare a Santa Maria. 3. Si tengo que mudarme
  7. Inequality quiz help CHECK ANSWERS

    1. Gavin needs to read at least 150 pages of his book this week. He has already read 82 pages. How many more pages A. 82 + p >= 150; p >= 68 B. p + 82 = 222 D. p - 82 60 B. x > -60*** MY ANSWER C. x < -60 D. x < -4 3. Solve the inequality. Explain each
  8. Math

    On a true-false test, each question has exactly one correct answer: true, or false. A student knows the correct answer to 70% of the questions on the test. Each of the remaining answers she guesses at random, independently of all other answers. After the
  9. 7th Grade Science Regents - Homework Check!

    15. Which type of reproduction leads to daugther cells that are identical to the parent cell? Cloning? My Answer: Asexual Reporduction 16. Is this process called mitosis or meiosis? My Answer (that I think): Mitosis 17. Which type leads to a mix of genetic
  10. math - please check me

    Identify the amount in the following application In a shipment if 1200 parts, 60 were found to be detective. What percent of the parts were faulty? a. 60 b. 1200 c. what percent d. shipment answer: c Write the following in the standard form of a number.
  11. 3 grade english

    when you read you can somethimes make a general statement, or generalization,about inividual ideas in the text. a generalization tells how ideas are mostly alike or all alike. directions read the following passage. people of all ages can play basketball
  12. Math - Algebra 2

    A chemical compound evaporates in a predictable way. In the first hour 1/2 of the amoun in the jar at the beginning of the hour evaporates. In the second hour 1/3 of the amount in the jar at the beginning of the second hour evaporates. In the third hour
  13. math

    A test had 200 questions .Each correct answer carried 2 marks.Each wrong answer carried -1/2 marks and unanswered question fetched no marks .Ajay attempted all the question in the test and he scored 360 marks.What would his marks be, if for each correct
  14. Math Check

    Solve the inequality. So i have done this problem at least three times and I keep getting the same answer. But in the back of the book the correct answer for this problem is x
  15. Algebra

    I'm studying for a test so I want to make sure I'm doing these problems right. Numerator (-5a exponent -2) Denominator b3 All to the -1 exponent For a= -4. And b=2 My answer I get is 1/10 is the right ? -16 with -1/2 exponent Would the answer be -4? 2-3
  16. govenment

    1)In what ways does the existence of minor parties also work to strengthen the United States' two-party system? 2)What does the fact that aliens generally are not allowed to vote show about American beliefs? It shows that Americans believe that no one
  17. Physics

    Calculate the answer for the following question and state the answer with the correct certainty and units. Given the values of b and h, find A. b=3.2 cm, h=10.1 cm A=1/2bh The answer is 16 cm^2, which was rounded to two significant digits from 16.16
  18. SS7R - HW Check

    I'm going to repost my homework questions because now I'm all over the place and confusing you. Please delete my other posts. 1. The ___________ states the responsibilities of the government and protects the rights of states and citisens answer -
  19. Chem, Oxidation

    Complete and balance the following half-reactions. In each case indicate whether the half-reaction is an oxidation or reduction. (Use the lowest possible coefficients. Include states-of-matter under SATP conditions in your answer.) OH ‾(aq) ¨ O2(g) I
  20. physics

    a 700 N man stands on a scale on the floor of an elevator. The scare records the force it exerts on whatever is on it. What is the scale reading if the elevator has an acceleration of 1.8 m/s squared up ? I need help with what formula (s) to use to get the
  21. verbs

    While he was biking this morning, Zach had seen a small accident. A huge SUV ran a red light, and the oncoming sedan was unable to stop. Driving on Portland's narrow streets was dangerous and expensive. the small dent in the sedan would cost hundreds to
  22. body science

    I have to do this for an open ended question on my unit test and i am not sure if i did it right can you please check my answers? It is fill in the blank. And the choices are: Arteries,Artium,Body,Carbon Dioxide,Lungs,Veins,Ventricle. You may youse these
  23. SS Statistics

    Hello. Does anyone have any statistic graphs of the Chinese and or Mexican Immigrants? Thx, Dallas Check the graphs at the bottom of the article. http://www.uagrad.org/Alumnus/im/
  24. Career Planning

    What is a form of payment that orders the issuing agency to pay the amount printed on the form to another party? And what is the type of check that a bank draws on its own in-house funds? Thank you!!
  25. Finance

    Determine the annual net cost of these checking accounts: a. Monthly fee $4, check-processing fee of 20 cents, average of 23 checks written per month
  26. spanish

    please check: "¿Dóonde está mi chandal azul?" "Creo que está en _____." a. el catálogo b. el vendedor c. el cesto de la ropa sucia d. el suéter de cuello alto C?
  27. Spanish-Please check my work

    Could someone please check this for me. I had to rewrite the following sentence using a direct object pronoun in two different ways. I wrote: Nosotros queremos leerlos. Los hosotros queremos leer. Thank you for checking
  28. early childhood literacy

    If mrs green read "little pig,little pig" & the children said "let me come in" then they were using a memorization b. completion c.story retelling d. fill-in-the blank reading I chose "b" is this correct.can someone please check it
  29. history #4

    Check please?~?~ i think its C. or A. 1.Which is an example of place? A. the Pacific Northwest B. a town with a big-box store C. Washington state's Mount Rainier D. the states and parts of states known as Appalachia
  30. Business Communications - English 101

    Should the sentence containing the word three be 3 instead. The rules states to use numbers that follow an identifying noun. I don't quite understand if "these" is considered identifying but I believe two or three should be written in words. If I should
  31. Science

    Which of the following is NOT a function of the skeletal system? 1)supports the body 2)works with other body systems to allow movement 3)manufactures new blood cells 4)sends signals to the brain I think #3. Can you check? Thanks
  32. Data Manag. [Probability]

    Some1 owns a chocolate shop. A popular product is a box of 40chocs. 5 of which are nuts. if u pick 2 out, randomly, What is the probability that both chocolates are nuts Pr = 5/40 * 4/39 check my thinking.
  33. U,S, History (please help)

    Who was responsible for writing the amendments that later became the bill of rights?? A) George Washington** B) Patrick Henry C) George Mason B) James Madison I think it's A, but I'm not sure, it would mean the world if someone could please check my
  34. physics

    please check this one question: Which interaction of nature binds atoms and molecules by attracting unlike charges and repulsing like charges? a. strong b. weak c. electromagnetic d. gravitational A
  35. English

    1. Tell me where she lives. 2. He asked me how she should do. 3. He showed them how to open the bottle. 4. Do you know why he was late? 5. I don't remember when she arrived. 6. I wonder how he open the door. 7. I doubt why he didn't come here.
  36. Business Math

    Check My Work (7 remaining) What payment should be made on an invoice in the amount of $3,400 dated August 7 if the terms of sale are 3/15, 2/30, n/45 and the bill is paid on ... a. ... August 19? $ b. ... September 3? $
  37. Language Arts

    Five themes of geography as they relate to A Light in the Forest. I haven't read this book, but you might check on the themes section in here: http://www.sparknotes.com/lit/lightforest/ =)
  38. Trig

    I need help solving the two problems below. Thanks For each equation, determine whether its graph is symmetric with respect to the -axis, the -axis, and the origin. Check all symmetries that apply. 1. y=-sqrt(4-x^(2)) 2. 34x^(2)+12y^(2)=18
  39. Foreign languages

    I left out this short paragraph. Could you please check it? 1) I really hope everthing is Ok with you. My students are really looking forward to starting the email partnership. I would be therefore be extremely grateful to you if you could let me have all
  40. physical science

    we have a whole list and I am confused and can someone help me with the first 2 as a reference to use. substance O substance O2 **these are both separate lines** name = under the rest we check appropriate box element compound symbol formula atom molecule
  41. English

    I vary the last sentence. Could you check it please? In conclusion, he says that though the populations of many marine species are decreasing very quickly, people have not been aware of the problems with ocean wildlife because these species are not
  42. englsih

    As my english is not good, could you please check the grammar of the following sentence. Thank you!!! What they care about most are money, stock prices and problems concerning about finance. They may never notice that there are lots of social problems
  43. math

    two cereal boxes have corresponding edges in a ratio of 2:3 If the smaller box sells for $2.50 and the larger box for $4.00, which is the better buy? Why? What assumption(s) do you have to make when solving the problem? Estimate, then check.
  44. English

    I left out this last sentence I would really like you to check. Thank you 1) I use the net to do (carry out) school research, look up information I need for school, keep up to date on what happens in the world and finally, to chat with my friends through
  45. Writing

    Can you please check my citation? I'm trying to find out if it's correct. "How Deforestation Affects Us." Edu.udym. 11 Aug. 2008.web. 23 Oct. 2010. (I'd put the url if jishka would let me)
  46. Accounting

    Rented an office and paid three months rent in advance to property Management check #001 $4,500. How would this journal entry be posted to the general journal.
  47. Grammar

    Please check these- 1.Of the three brothers Jason drives ________. A.more carefuller B.most carefully C.most carefullest D.the carefullest B? 2.Rick is the _______ tennis player of the twins. A.better B.best C.gooder D.goodest A Thanks -MC
  48. English

    The classroom has 10 short/low chirs, 10 tall/high chairs, 10 small desks, 10 big desks, 5 windows, and 20 lockers. (Did I use correct adjectives? Would you check them?)
  49. MC...novel idea

    Check out this posting... http://www.jiskha.com/display.cgi?id=1235232399#1235232399.1235237861 It doesn't have to be a doll...It could be her cat... or a bird on the tree by her window.
  50. Math

    You invested $1000 in a savings account in 6th grade. The account pays 5% annual interest. How much money will be in the account after 6 years? I understand how to set the equation up, but I'm not sure how to get the final answer. This is a question from
  51. Algebra

    Factor m^2-k^2+6k-9 ^2 means squared. I don't know any other way to type it. Thanks. Seems to me you can only do this in 2 pieces...factor the first 2, then the last 2... (m+k)(m-k) + 3(2k+3) Whadya think? hmmm... I looked in the back of the book and it
  52. Math

    You invested $1000 in a savings account in 6th grade. The account pays 5% annual interest. How much money will be in the account after 6 years? I understand how to set the equation up, but I'm not sure how to get the final answer. This is a question from
  53. English- please help

    Need help with the following questions: Q1) Mrs Chen ________ for the doctor's clinic already. 1) left 2) has left 3) had left 4) was leaving Is the answer (1) or (2)? Q2) John ______ to the library since nine o'clock this morning, he should be back soon.
  54. physics

    A boat moves through the water with two forces acting on it. One is a 2.80×10 3 N forward push by the motor, and the other is a 1.56×10 3 N resistive force due to the water. a)What is the acceleration of the 1312.6 kg boat? Answer in units of m/s^2 b)If
  55. Algebra

    Solve the equation and check the solution: -4(t+7)-(t+6)=10 the solution t is:
  56. Lisa

    2/3 to the second power divided by 4/5 divided by 1/3. Can you help me solve this? Thank you! (2/3)^2/(1/3)^1= (2/3)^2 * 3^1 = 2^2 * 3/9= 4/3 check that.
  57. Algebra2

    Check Please? Determine if the given function is even, odd or neither. 1. f(x) = 3x^4 - 2x^2 =Even. 2. f(x) = x^3 + x = Odd.
  58. algebra

    -12X^6+24x^5-18x^2/-6x^2=2x^4+24x^3-3x could some one check this for me please
  59. math

    7 – 4(x + y) + 2(x – 3y) A 7 – 2x – 7y B.7 – 2x – 10y(*) C.7 + 2x – 7y d.7 + 2x – 10y i think its be im not aure can some one check my ansswer
  60. alegebra

    4m^+20m+25= 4(m+20m+25) over the 4 is two square could you check this problem
  61. math

    24x^4-12x^3+48x^2/-4x=6x^3+3x^2+12x check this for me.
  62. chemistry

    1 km = ? cm. I was thinking 1,000,000. Could someone double check that?
  63. Math

    1. 45 x 3 = _ A. 130 B. 135** C. 109 D. 135 Check
  64. Science

    Could someone please check me previous before previous Science post, thanks
  65. 9th grade Math

    (7n-1)/(8)=6 Okay, I think I add 1 to both sides, so now I have.. (7n)/(8)=7 And then, to get n by itself I divide 7 into both sides, so now I have.. n/8=1 n=1 is what I get, but I'm not sure, could someone please check this for me?
  66. Help!

    MS. Sue, to the other civics questions can u please check my other questions????
  67. algebra &lt;&gt;+ complete each statement

    can you check if these are right (24 -8) / 4 ? 24 -8 /4 i got < 3 x (4-2)x5 ? 3 x 4 -2x5 i got: > (22+8) /2 ? 22 + 8 /2 i got: < 20 /2 + 8 x 2 ? 20 / (2+8) x 2 i got : > 11 x 4 -2 ? 11 x (4-2) i got : > (7x3) - (4x2) ? 7x3 - 4 x 2 i got: =
  68. Math

    Rational Equation, how do you work it out I need to check my work. x 1 x — - — = — 2 3 4 I got 4 — 3
  69. Math

    y + 5 is equal to or greater than 7 Is y less than or greater than 12? Please check, and help correct.
  70. Math!!!!

    13.75 is the same as 12.5 plus a fraction of 12.5. What is the fraction? HELP. THANK YOU!! I would do this. 13.75 - 12.5 = 1.25 difference. 1.25 is 1-1/4 (one and one-fourth) and that is the same as 5/4. So 13.75 = 12.5 + 5/4. Check this out. 6=7\3=14
  71. calculus

    the second number is the reciprocal of the fist and the sm is a minimum. this is my my work and i got stuck x=first number y=second number so y=1/x then what. i know the answer is 1 and 1. also can you explain why the answer is 1 and 1 and not just one. it
  72. Principles of Management - Effective Management

    Please double check my answers please! 1. a team manager is resolving the conflicts that exist among the members of his team in an organization. this is an example of: a. planning b. organizing c. leading d. controlling answer C 2. a manager at a grocery
  73. English

    How can readers distinguish between prejudicial and non-prejudicial use of rhetorical devices? Here's a previous answer to this question. Posted by Ms. Sue on Tuesday, June 27, 2006 at 6:03pm in response to CREATIVE WRITING. This question has been asked
  74. MATH -BRAIN TEASER- PLEASE HELP

    page # D-76 What Relation Is a Doorstep to a Doormat? Both are stepped on. no You didn't put any parameters on this and I think its a great answer. How bout the relation being a stepson (steps on) I got astearther.... No wait it's A Step Farther eh....??
  75. Algebra 2

    1. Solve the following for x. 3-(x+(-4))= 2x-6+5x I figured that the answer is no solution. Is this correct? I have been working with my friend on this next problem and neither of us know which is correct. 2. Solve for r. I=P(1+rt) The first answer is
  76. calculus

    Let f(t)=2t²+3t-4 f(t+1)=f(t)+4t+5 TRUE or FALSE answer is true, but i don't know how to get it, please help :( re-arrange your answer to fit their answer. I hope you had f(t+1) = 2t² + 4t + 2 + 3t + 3 - 4 after you expanded which is f(t+1) = (2t² + 3t
  77. Calculus

    For the parabola given by (y – 3)^2 = 8(x + 5), find the following: (a) direction parabola opens (to the left, right, up, or down) Answer: ___________ (b) vertex Answer: ___________ (c) focus Answer: ___________
  78. CE: re ART

    Finally heard from my son; he wanted to check the answer to your ART question "The first american painting to reach the million mark was "Three Flags" by Jasper Johns. It was purchased by the Whitney under the director Tom Armstrong (worked with him). It
  79. Physics

    A weight suspended from a spring is seen to bob up and down over a distance of 11 cm twice each second. What is its frequency? Answer in units of Hz. 002 (part 2 of 3) 10.0 points What is its period? Answer in units of s. 003 (part 3 of 3) 10.0 points What
  80. Science 7R

    15. Which type of reproduction leads to daugther cells that are identical to the parent cell? Cloning? My Answer: Asexual Reporduction 16. Is this process called mitosis or meiosis? My Answer (that I think): Mitosis 17. Which type leads to a mix of genetic
  81. Chemistry

    A gas at 65 degrees Celsius occupies 4.22L. At what Celsius temperature will the volume 3.87L, assuming the same pressure? -kay so ive tried this one like a million times & i cant seem to get the right answer so pls talk me through the steps. like i know
  82. math

    Please help! :) Garden measures 30x20 Border has a width of x (I've already solved the first part of my problem, in that the width is 3) Border needs to be covered to a depth of 3 inches. Pine bark costs $29 per cubic yard. What will the material cost to
  83. math

    Please help! :) Garden measures 30x20 Border has a width of x (I've already solved the first part of my problem, in that the width is 3) Border needs to be covered to a depth of 3 inches. Pine bark costs $29 per cubic yard. What will the material cost to
  84. Personal Fitness (Check answers)

    5: Which of the following shows effective communication? a) A student says " I hear what you are saying, but I don't care." b) A student says " I hope you feel better soon. What can I do to help you?" (~~ MY ANSWER is B. ~~) c) A student says " You make me
  85. algebra

    3/0 =? the answer is 0 but my options are to solve the equation if possible or say the answer is undefined. Is 0 undefined? I have no clue what an undefined answer is
  86. English

    Can you check the grammar in these two sentences, please? Thank you. 1) Best would be to know the name of the principal "and" the teacher who is designated with these programs; if I find that information I post it to you. 2) Addressing both would be
  87. vocab

    i don't know none of this . PLEASE HELP!!! words: attest, attribute, discern, dispatch, enhance, enigma, exemplify, mobile, nocturnal, orient. Sentence check 2 for chapter 8 on improving vocabulary skills fourth edition
  88. precalculus

    Can you please check these answers. In exercises 10-13 , find (a)2v+u, (b)u-3v), and (c)5u-v. 10.u=, v= a) 2v+u =
  89. L.A

    Which sentence contains a participle phrase? A. she wanted to spend time writing. B. her job is giving the attic dwellers their food. C. quickly snatching up the coat, she ran to her room. D. to get along well requires cooperation. C ? please check
  90. Government US

    According to Charles Beard, which of these was NOT an economic group that benefited from specific constitutional provisions? a. Those holding public b. slave owners c. Western land speculators d. Farmers and ranchers e. Merchants and manufacturers I would
  91. English

    Could you please help me check these few sentences? Thank you. 1) I'm happy our head science teacher is so enthusiastic to carry out a project with your and the French school. 2) I read you both agreed to hold the meeting on 27 January and that you are
  92. social

    What are some examples were the u.s has relied on international organizations.. Wat were some situations were the policy was being used? Check United Nations, SEATO, NATO. Here is a good source to begin with.
  93. Chemistry

    Does anyone know where I can get an image of the valence bond model for maleic acid? ie. showing the pi and sigma bonds and indicating the hybridization (sp2, sp3.. ) OR could someone describe these things to me? I'm just trying to check my work and make
  94. English

    Hello. I will highly appreciate some help. Please check the sentences (whether they are natural and grammatically correct): 1) "His life can justifiably be considered exemplary." 2) "I have always acknowledged his intellect and erudition." 3) "He is no
  95. Social Studies grade 7

    hi :D can someone check a few of my answers? will be posting a few.... the firt is: for what main reasons do consumers purchace goods and services? 1.to make money to sae for later 2.to support free trade 3.to help grow the economy 4. to satisfy personal
  96. Social Studies

    The Surpreme Court ruled that slaves were not citizens of the U.S. and had no rights. Answer:Dred Scott decision The number of slave states and free states was kept balanced when Missouri was allowed into the Untion as a slave state and Maine as a free
  97. science

    the oxide formed when selenium burns in air dissolves in water to give a solution of selenious acid,H2SeO3.the solution conducts electricity and turns blue litmus paper identify the positively charged ion present in an aqueous solution of the acid and then
  98. direct variation

    could someone please help me with these problems i am having trouble. If y=36 when x =6 find x when y = 42 If y=-18 when x=6 find x when y=6 If y =12 when x= 15 find x when y =21 If y=-6.6 when x=9.9 find y when x =6.6 If y=6 when x=(2/3)find x when y=12
  99. Chemistry

    Write a balanced equation using the correct formulas and include conditions (s,l,g or aq) for each of the following reactions. 1)Carbon monoxide gas reacts oxygen gas to produce carbon dioxide gas. Express your answer as a chemical equation. Identify all
  100. Math

    The rainbow bridge of Utah is a natural arch that is approximately parabolic in shape. The arch is about 88m high. It is 84m across the base. Determine a quadratic relation, in standard form, that models the shape of the arch My answer was y=-22/441x^2+88