Calculus (Answer Check)

88,560 results, page 94

  1. Calculus

    How do we integrate [(cosx)^2(nx)(sin(nx))]/[a-(cos(nx))] dx?
  2. calculus

    Find the derivatives of the following function: i)y=-3x^-3 +2x^-2 + x-2
  3. Calculus

    Find the limit lim tan^2(7x)/9x x-> 0
  4. Pre-Calculus

    If w varies directly as z and w = 9 when z = -6, find w when z = 3. a) 0 b) -4.5 c) -2 d) 4.5
  5. Pre-Calculus 12

    Solve using logarithm: 2^(4x+1)=3^x
  6. Math/calculus

    Graph f (x) = 3cos (4pix -pi/2) -2
  7. Calculus help

    Lim(x>inf)=2000x^4/200x^4= 10
  8. Calculus -- Identity crisis

    A function has f''(x) = 10 and has f'(4) = 0 and f(2) = 4. Find f(x).
  9. Calculus

    what is average value of cos(x) on the interval [-3,5]?
  10. AP Calculus AB

    Hi. Please help me with the following question: lim x-->1 (x)/(ln(x))
  11. Calculus

    What is the area of the inner loop of r = 3+6sinΘ?
  12. Calculus

    Suppose y = sqrt(2x + 1), where x and y are functions of t. (a) If dx/dt = 15, find dy/dt when x = 4. dy/dt = ?
  13. chemistry

    In the chemical plating experiment zinc powder is dissolved in a hot NaOH solution to form sodium zincate according to the following reacton: Zn(s) + 2NaOH(aq) Na2ZnO2(aq) + H2(g) Answer true or false for each of the following statements regarding the reaction above. Zn(s) is ...
  14. Math -algebra (check plz)

    ok say i was trying to find y in this equation 2x + 3y + 6z =4392. I was given x=3789-1.5y , and z = -531. so i did the working and ended up with 7578-3y+3y=7578 . If i do the math correctly ill end up with 0y = 7578 :S im pretty confused, can someone clarify if that would be ...
  15. English

    Could you check this exercise, I had to complete the text. I wrote my answer with capital letters. Thanks so much When I first met Steve, our senior manager, he seemed to me rather PATIENLY and somewhat DECISIVE especially when it was necessary to take some serious decisions ...
  16. accounting

    CHOI ENTERPRISES Inv. No. Check Date Description Name or Date No. Terms Amount Dec. 16 Merchandise sold (cost $4,600) Hanna Seppa 916 2/10, n/30 $7,700 17 Received credit memo on returned merch. Funk Company Dec. 15 1,040 17 Purchased office supplies KK's Supply Company Dec. ...
  17. math (double checking)

    I've posted this question before but I forgot to say that I was dealing with polynomial inequalities (not sure if that makes a difference) The question is: Solve the following polynomial inequalities. (9 marks) 4x - 5 ≤ 2(x - 7) x^3 - 5x^2 + 2x ≥ -8 2(x^3 - 2x^2 + ...
  18. MATH

    WHY IS IT I NEVER GET AN ANSWER TO A QUESTION? IT SAYS I HAVE SUCCESSFULLY SUBMITTED THE QUESTION, BUT NEVER RECEIVE AN ANSWER. HOW DO I ACCESS AND ANSWER IF IN FACT, ONE IS POSTED?
  19. Differentiation

    for the curve x^2+z^2+2gx+2hy=0 value of dy/dx at(0,0) is A. -g/h B. g/h C. h/g D. None Please help me. In the answer page it shows option A as answer. I don't know deeply of differentiation . Please could you help me by explain how the answer is A
  20. English

    Have a question on Simple Verb Tenses. Need to reswrite each sentence, using the correct form of the verb in parentheses with s,ed,or will.. Thank for looking and helping me~~ 1. Long ago Plutarch___ stories of Greeks and Romans. (RELATE) Answer=related 2. Today we___a person'...
  21. Math

    2. Rename .709 as a percent. a. 709% b. 70.9% * c. 79% d. 7.09% 4. Alice plays basketball. In one game she shoots 21 free throws and makes 81.25% of them. Estimate how many free throws she makes. a. about 16 b. about 2 c. about 20 d. about 14 5. Estimate 48% of $20.00. a. ...
  22. Physical Science

    Hello! Thanks for checking my question out! ____ 4. Water is a compound because it (1 point) a) can be broken down into simpler substances. b) always has two hydrogen atoms for each oxygen atom. c) is made of water atoms joined together. d) both the first and second choices ...
  23. Calculus-Rationalizing Denominator

    I am very confused on how to rationalize a denominator, it just gets harder and harder.*will be using the V symbol again as a square root symbol.* I get how to rationalize something simple as V2/V7, I would get V14/7 as the answer, but I get confused on how to solve 1/V6 +2, ...
  24. Calculus

    The tank shown is full of water. Given that water weighs 62.5 lb/ft3, find the work required to pump the water out of the tank. The tank shown is a hemisphere with r = 5 ft. The water is to be pumped out at the top. First I solved for ri, ri / (5 - xi) = 5 / 5 ri = 5 - xi Vi...
  25. Math

    So she saw 461 dolphins that are 5 year so we don't need to estimate on this problem. So I did 461/5 is 92 is the answer. Then the said how many did he spot per summer in the 5 summers he worked so I think we need to divide the answer which is 92 and the 5. 92/5 18 is your ...
  26. maths

    a mathematics question contained 20 items. every wrong answer scores -2marks, every correct answer scores 4marks and no mark for no answer. find the maximum possible score
  27. calculus

    Find complete length of curve r=a sin^3(theta/3). I have gone thus- (theta written as t) r^2= a^2 sin^6 t/3 and (dr/dt)^2=a^2 sin^4(t/3)cos^2(t/3) s=Int Sqrt[a^2 sin^6 t/3+a^2 sin^4(t/3)cos^2(t/3)]dt =a Int Sqrt[sin^4(t/3){(sin^2(t/3)+cos^2(t/3)}]dt=a Int Sqrt[sin^4(t/3)dt =a ...
  28. english

    Could someone check mty work? Which of the following would not be a good strategy for delivering a speech? Make sure your presentation is running properly Start talking over the audience to quiet them down (anser) Use correct grammar and well formed sentences Look directly at ...
  29. algebra can somecheck my answers

    please check my answer thank you Write the phrase “the quotient of 3 more than a number, and 3 less than that same number. “ (x+3/(x-3) . It is estimated that the Earth is losing 4000 species of plants and animals every year. If S represents the number of species living ...
  30. Physics

    I have these two equations that I'm supposed to set equal to each other and find the answer for h which is height for this problem. But I don't think I'm solving it correctly. 0 - (h/5) = -1.1(v0) - (1/2)(-9.8)(1.1)^2 (v0)^2 = 2(-9.8)(h/5 - h) My final answer was h = 412.90 to...
  31. Calculus

    I have two problems that I can't figure out for my test review... 1. Productivity: Because a new employee must learn an assigned task, production will increase with time. Suppose that for the average new employee, the rate of performance is given by dN/dt=1/2?(t+1) where N is ...
  32. Chem Check

    Can someone verify my answers please? convert the folowing into a pressure reading expressed in torr A. 1.25atm * 760torr/1.0atm = 950. torr B. 2.48 x 10^-3 atm * 760torr/1.0atm = 1.88 torr C. 4.75 x 10^4 atm* 760torr/1.0atm = 3.61 x 10^7 torr D. 7.60 x 10^6atm * 760torr/1....
  33. math check my answer ?

    What is the range of f(x)=−3x−1? the set of real numbers less than 0 the set of real numbers greater than 0 the set of real numbers greater than −1 the set of real numbers less than −1 <my choice
  34. Grammar

    Can someone please help me check these for me.And help me correct them the correct way. I'LL APPRECIATED YOUR HELP :) I have to rewrite the sentences under the grammar rule of "Punctuating Sentences" if they need no change i have to write no change. (1) The goose bit the ...
  35. Gr.12 Chem - PLEASE CHECK MY ANSWER

    Hi, Im learning about polymers. I did a lab to make slime where I mixed PVA glue & water. I then added borax to some water in another container, and the poured off the water from the wet borax. I then added the borax to the glue/water solution. I have to make a procedure that ...
  36. Check Business Law

    (TCO 4) State court jurisdiction can be established in all of the following ways EXCEPT: a)when the defendant is a resident of the state, a summons may be served at that residence. b)cases involving more than $75,000 where the plaintiff and the defendant are citizens of ...
  37. Physics

    The patient in the figure below is to receive an intravenous injection of medication. In order to work properly, the pressure of fluid containing the medication must be 108 kPa at the injection point. (a) If the fluid has a density of 1024 kg/m3, find the height at which the ...
  38. linear algebra- check question

    I just want to make sure my reasoning is correct. Let A be a 7X3 matrix whose rank is 3 a)are the rows of A linearly dependent or independent? I said dependent because a matrix whose rank is 3 means the row rank is 3, but if there are 7 rows then they have to be dependent on ...
  39. Chemistry-check answer please

    I am given a question where I have to state which combination of electrodes will result in the greatest voltage and which will result in the lowest voltage. The metals given are Zinc, Copper, Silver and Hydrogen I think that silver and copper would give the greatest voltage ...
  40. Physics

    A sphere of radius R has inhomogeneous charge distribution on its surface. Its surface charge density is σ = σ0 cos θ, where σ0 is a positive constant, and θ is the angle from the “north pole” to the point of interest and satisfies 0 ≤ θ...
  41. Please HElp CHemistry MIDTERM

    A 2.00 ml sample of an aqueous solution of hydrogen peroxide, H2O2 (aq) is treated with an excess of Kl (aq). The liberated I2 requires 12.40 mL of 0.1025 M Na2S2O3, for its titration. Is the H2O2 up to the full strength (3% H2O2 by mass) as an antiseptic solution? Assume the ...
  42. calculus II

    (A) 2 students are sharing a loaf of bread. Student A eats half of the loaf, then student B eats half of what remains, then student A eats half of what remains, and so on. How much of the loaf will each student eat? (B) 2 students are sharing a loaf of bread. Student A eats 2/...
  43. World History Answer Check (Ms.

    Why does Plato believe that philosophers would make the best rulers? What men would make poor ruler? A: Plato believe that philosophers would make the best rulers because, according to Plato, they have knowledge of truth that others do not and only they can make crucial ...
  44. Math

    Look at the given triangles. Large triangle left side says 4x+2 top says 7x+7 bottom days 5x-4. Small triangle left side says x+3 top says 2x-5 and bottom says X+7. a. Write an expression in simplest form for the perimeter of each triangle. b. Write another expression in ...
  45. Math(Check Please)

    1. Which line is the flattest (or is less steep)? Why? a.
  46. More Math To Check Please

    4c^2 - 12c + 9 This is what I got: (2c+3)(2c-3) *Is that correct.? No, it is (2c-3)^2.
  47. word unscramble

    xhfzhgzhoita Check the spelling. I found no matches.
  48. English

    Could someone check my answers for this exercise. Dangling Modifiers
  49. computers

    What is the main disadvantage of relying on spell check on your computer?
  50. algebra

    what does it mean to solve and check for extraneous solutions for sqry+9=1
  51. algebra

    I need help with: solving and check for extraneous solutions. sqrt y+9=1
  52. for bobpursley please check

    ok So The American Association of Labor legislation did what then n
  53. algebra

    When solving a rational equation, why is it necessary to perform a check?
  54. algebra

    graph and check to solve the linear system. problem: 2x-3y=-3 x+6y=6
  55. english

    i had a parargrahp writen i want you to check if its right orno t.
  56. pre-algebra

    can someone check if this inequality is solve right 5x + 3 >= 28 -3 -3 5x >= 25 5 5 x <= 5
  57. Math 116 algebra please check

    Solve -0.8x < -56 The solution is x<70
  58. Math 116 algebra please check

    Solve 8x - (5x + 7)= 17 The solution is x= 8
  59. Math 116 algebra please check

    Solve 5/2x + 1/4x = 9/4 + x The solution is x 9/10
  60. math - scientific notation

    please check. thanks. (8.3 x 10^-15) (7.7 x 10^4) = 6.391 x 10^-10 Is that right?
  61. science

    i need help making a catapult. im gonna check my pc tomorrow
  62. Math check

    Find the y-intercepts for the function given by: f(x)= 4/(x+5)-1/(x-4)/2/(x-3)+3/(x+2) I am stuck
  63. Math check

    express in terms of i and simplify: srqt-54 is it -3isqrt6?
  64. college

    What is the ICD-9-CM code for a routine infant health check?
  65. math

    Could someone please check these for me? 1. Find the function value if x=2 f(x)=x^3 F(2)=8
  66. 7th grade

    how do check to see if your caluator does order of opreations
  67. math

    can someone check this please find indicated outputs for f(x)= 4x^2 - 2x f(0)=0 f(-1)=6 f(2)=14
  68. science

    what is radiation? What are some good sites that I could check out? Thank you!!:)
  69. To:Sabrina

    Do you think you have time to check my french homework. thanks
  70. algebra

    Find the slope, it it exists x+7y=14 x=7y/14=2 check this problem for me please
  71. math

    8x -5y =20 5y -8x=-20 x= -4 Solve the system of equations by graphing. Check this problem for me.
  72. algebra

    Everytime I send a problem for someone to check no one does why!!
  73. social studies

    article on "role of media to check corruption"
  74. Algebra

    When solving a rational equation, why is it necessary to perform a check?
  75. Math

    Can you please check to see if these are right? We have to set each of them to y. Thank You. x-y=-3: y=-3x 2x+y=5: y=5-2x 2x+y=8: y=8-2x
  76. Math Check

    Is this correct we have to set this problem equal to y? 2x-y=4: y=-4+2x
  77. ALGEBRA

    When solving a rational equation, why is it necessary to perform a check?
  78. science

    Dr bob, can you check my reply to chem question from andy thanx
  79. math

    x+4/2x*6x^2/x^-16= (x+4)/2x*6x(x)/(x+8)(X-8) rational expression using factoring could some check this.
  80. Alg 2 Please can Someone Check this???

    1) 8^2y = 52^4y+3 2) 2^3(2y) = 2^26(4y+3) 3) 6y = 104y+78 4) -98y = 78 5) y= -0.796
  81. algebra

    -12x^6+24x^5-18x^2/-6x^2 3x^4+x^3-3x check see if I did it right.
  82. Math

    Why is it necessary to perform a check when solving rational equations?
  83. Math(please check)

    Simplify each expression: 1) (x+8)^2 = x^2 + 64 2) (x-2)^3 = x^3 - 8 3) (x-2y)(x+y) = x^2 - xy -2y^2 4) (x+2)(x^2+3x-2) = x^3 + 5x^2 + 4x-4 Are my answers correct?
  84. Algebra, ( check please)

    A/3+4=6 I subtracted 4 from 4, and 4 from 6. and I got A/3+2= But how do I solve it from here?
  85. Math

    Check please Rewrite using distubutive property 3(x-2) 8(z-3) (t-4)5 -2(x-7) 3x-6 8z-24 5t-20 -2x+14
  86. 5 th math

    what is 1/8= ? Equivalent fraction THIS IS WHAT I GOT ? = 2/16 ,4/32 AND 8/40. CAN YOU PLEASE! CHECK IT FOR ME MS. SUE THANKS!!
  87. Algebra

    solve the eauation check for extraneous solutions. log5 x=4
  88. Math

    Solve each equation by using the properties of equality. Check. 4x – 18 = 65
  89. Basic Algebra

    solve the equation & check your solution: 2/5x-9/25x=5
  90. Basic Algebra

    solve the equation m, and check the solution: 5/6x-1/5x+4=7/10x
  91. Algebra

    Solve the equation 5x+7=13-7x graphically. then check your solution algebraically.
  92. Algebra

    Solve algebraically and check your potential solutions: sqrt((x+2) -x =0
  93. help in math

    solve and check each of the following quadratic equation (1) x^2=6x (2) x^2=3x (3)x^2=17x (4) x^2=5x+6 (5) x^2+9x=10
  94. Lif oritation

    Wht are the check and balance that control the media?
  95. Math

    Solve & check your solution ( if checking isn't possible, explain why ) 5x/4 + 1/2 = x - 1/2
  96. Ms. Sue Help me with my poem

    Please look at my last post, so you can check my answers.
  97. Algebra2

    Check? Give the slope and y-intercept of the given line. 1. 2x-3y=6 = 3y = 2x-6 y = 2/3 x - 2 2. y=-2x = 2/1x + 1 3. y=3 = y=3/1x + 3 3y = 2x-6 y = 2/3 x - 2
  98. Algebra2

    Check? Give the slope and y-intercept of the given line. 1. 2x-3y=6 = 3y = 2x-6 y = 2/3 x - 2 2. y=-2x = 2/1x + 1 3. y=3 = y=3/1x + 3 3y = 2x-6 y = 2/3 x - 2
  99. Grammar

    He came in for his preoperative _____. A) check up B) checkup I answered B
  100. math

    solve 9x<-27 I did 9x/9<-27/9 x<-3 Just a double check. I believe this is right Thanks
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