Calculus (Answer Check)

89,119 results, page 21

    Write an equation that would have a hole at x = 4 and a vertical asympote at x = -2. My answer was f(x)= (x-4)/(x+2) If it is not correct can someone please help me solve it and explain it to me? Thanks!
  2. Algebra 2 Answer Check

    If the rise and run are reversed for the linear equation y = 8x + 4, what is the slope of the new line? A: 0.125 or -1/8?
  3. Algebra 1B

    I can not figure out the answer to this problem. (^6)(-7^6+5) I'm not sure if that sign is correct. It's suppose to be the symbol that looks like a check mark and goes over the 6 on left and over the 6+5 on right. Please help

    Factor each expression completely. show some sort of check to confirm your answer. (hint: think FOIL) x^2+11+30 x^2-5x-14 9x-16
  5. P.E. help please

    It is important to(blank) thr victim before calling 911 A. Call B. Care C. Check D. Catch Is the answer C?
  6. MATH

  7. Science check answer

    1. Acceleration involves a change in ____. speed velocity displacement direction I think its b.
  8. Chemistry Check?

    1. _____C2H6(g) + _____O2(g) ---> _____H2O(g) + _____CO2(g) Is my answer right? = 2C2H12(g)+2O7---> H12O6+2C2O8
  9. Algebra

    Could someone please help me figure out this question. If I paid $76.08 for something that was 40% off, what was the regular price? I got $127.98 but when I check my answer I am off by 2 cents. What am I doing wrong?
  10. Enghish

    Please check my answer thanks :) In the sentence "Although the book was more than 50 years old, it still contained helpful information", the word although is what. I said it's adjective
  11. Math

    Please check my answer: Multiply and simplify (8a^7)/(11p^3) * (121p^8)/(64a) I got (968a^7p^8)/(704ap^3) Is this correct?
  12. Math

    1. When their child was born, Elaine and Mike Porter deposited $5,000 in a savings account. The money ears interest at 6 percent compounded quarterly. How much will the account be worth when their child celebrates her second birthday? My answer= $5,632.46
  13. Calculus

    Water is drained out of tank, shaped as an inverted right circular cone that has a radius of 16cm and a height of 8cm, at the rate of 4 cm^3/min. At what rate is the depth of the water changing at the instant when the water in the tank is 6 cm deep? Show
  14. pre Calculus

    how do you find additional points on a line with a slope of 1/2 and a given point of (7,-2)? im sorry but i still cant get an answer for this question.
  15. Calculus

    use implicit differentiation to find dy/dx if 5xy+x^2y=10 Is this correct answer for this question (-5y-2xy)/(12x)
  16. Calculus Help

    Use f(x)= 1/(square root(x)+1) to answer the following; -- Use the difference quotient f'(x)=lim z->x (f(x)-f(z))/ (x-z) to find f'(x)! Please show steps!!! Thank you!!!
  17. pre-calculus

    find the cube roots of -216 answer in polar form and complex
  18. 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^+.
  19. calculus

    hi i am having trouble solving this example of finding the derivate using the quotient rule? y=(-4x^2+8)/(x^2+2)^2 what do u do with the (x^2+2)^2. please i get the wrong answer while factoring thanks.
  20. Calculus

    Given that f is a differentiable function with f(2,5) = 6, fx(2,5) = 1, and fy(2,5) = -1, use a linear approximation to estimate f(2.2,4.9). The answer is supposed to be 6.3. Here's what I've done so far: L(x,y) = f(2,5) + fx(2,5)(x) + fy(2,5)(y) L(x,y) =
  21. Calculus

    Determine an expression, in simplified form, for the slope of the secant PQ. Given: P(1,3) , Q(1+h, f(1+h)) , where f(x) = 3x^2 PQ=Y2-Y1/X2-X1 I keep getting wrong answer, arghhh.
  22. Calculus I

    Hi, I'm trying to figure this out, but the answer I keep coming up with is incorrect. Can anyone help me out? Thanks. Problem: y=2(6-x^2)^5 I know I'm supposed to use the chain rule, but I'm getting confused.
  23. calculus

    solve the following exponential equation 9^x=6 I get In6/In9 what is the answer approximated three decimal places?
  24. Calculus

    Use integration by parts to find the given integral: ∫_9^1 (7t - 42)e^(7 - t) = [-28(1 + e^8)] / e^2 Is my answer correct? or... is it.. = -70e^(-2) + 14e^6
  25. calculus

    Solve the differential equation below, given the initial condition f(0) = 3. Express your answer using words or symbols. y=-5x^2
  26. Calculus

    t 3 5 7 9 11 13 V(t) 0 30 23 19 12 6 A. What is the largest number of subdivisions that can be used to estimate the definite integral ∫3-13V(t)dt? Answer: n=
  27. AP Calculus

    In the answer space below, provide the larger of the two positive integers that add up to 60 and have the largest possible product.
  28. Pre-Calculus

    Simplifying Complex Fractions [(x+3)/12] / [(4x-5)/15] [(x+3)/12] x [15/(4x-5)] (x+3)5/4(3x-5) (5x+15/12x-20)<-- final answer Did I do this right. If not could you please explain how to do it correctly
  29. calculus

    For the function f(x) = 1 + sin(x) find f(2). Leave your answer rounded to tenths. Assume x is in radians
  30. calculus

    lim as approaches infinity of sin(pie.x/2-3x) i need the work and answer find the limit
  31. calculus

    usethe intermediate theorem to show that the polynomial function has a zero in the given interval f(x)=18x^4-8x^2+9x-1;[0,3) can you please me how you got the answer
  32. Calculus

    Find the absolute maximum & minimum of the function f (x)=e^x for any closed interval [a,b] Justify your answer.
  33. Calculus

    I'm trying to find the integral from -1 to 0 of 1/x^(1/3). Calculators show the answer to be -3/2, but I keep ending up with 0 - (3(-1)^(2/3))/2, which seems to be an irrational number. What am I missing here?
  34. Calculus (Sequences)

    Hello, here is a picture of the question I am trying to solve, I believe the answer to be C, but I would just like some confirmation/correction. goo. gl/gWfhVn
  35. Pre-calculus-chck answers

    Determine the value of w so that the line whose equation is 5x-2y=-w passes through the point at (-1,3). Answer: w=11
  36. Calculus

    [Linear Approximations and Differentials] I tripled checked my work but I'm still not getting the correct answer. y=3x^2 x=3 & delta x =0.2 I get 3(3.2)^2 - 3(3) = 21.72
  37. Calculus

    no one on physics forums seems to know the answer so I was wondering if you guys could help post anser on these forms of course if you can help my question is here h t t p : / / w w w . p h y s i c s f o r u m s . c o m / s h o w t h r e a d . p h p ? t =
  38. calculus

    How do you find the limit of: 1(1 - (1/k))/2! as k increased with no bound? I know the answer is 1/2! But how do you get there? Are you supposed to divide both top and bottom by k?
  39. Pre-calculus

    Use the remainder theorem to find which of the following is not a factor of x3 + 12x2 + 47x + 60 the answer is x-5 but idk why
  40. math-calculus

    15+2y-y^2/3y^2-16y+5 (5-y)(3+y)/(3y-1)(y-5) i factor out a negative one from (5-y) to make it same like (y-5) (-1)(-5+y)(3+y)/(3y-1)(y-5) i cancel off y-5's. and i get (-1)(3+y)/(3y-1) but the real answer have to be 3+y/1-3y what i doing wrong?
  41. calculus

    Explain and show how you would estimate 0.5 x 4.62 . Then justify why this is a good choice for arriving at the correct answer.
  42. calculus

    find the bound on the real zeros of the polynomial function f(x)=x^4+x^3-4x-6 cna you please show me how you got the answer please
  43. pre calculus please help

    Find all solutions of the equation tan^5 x - 9tan x =0. The answer is Ak\pi where k is any integer, the constant A=???
  44. Calculus

    Use the Evaluation Theorem to find the exact value of the integral ç from 1/2 to 0 (a/ã(1−x^2)dx. The answer should involve the parameter a.
  45. Calculus

    Give a Right-hand sum approximation of integral 1 to 4 of x^2 with n=4? I have done this problem alot and my teacher says the answer is 30 but I cant get it. HELP
  46. Calculus Verification

    I just want to make sure im right. Find the derivative if y= arcsec(x+3). I got 1 ======================= |x+3|sqrt(x+3)^(2)-1 Is this the final answer or do you need to solve (x+3)^2 and get (x^(2) + 9x + 9)
  47. Pre-calculus

    The problem is Find the difference quotient and simplify your answer F(x)=5x - x^2, F(5+h) - F(5) over h ^2 this means power of two
  48. pre-calculus 11

    The infinite series 1+3x +9x^2 +27x^3+.. has a sum of 4.The value of x is? so if 1/1-r I substitute 1/1-3x =4 so x=1/4 if someone could confirm that my answer is correct? thanks so much
  49. calculus

    Find all relative extrema of the function. (Enter NONE in any unused answer blanks.) f(x) = x4 – 8x3
  50. math

    I am a little confused on the first question of this problem could someone please check my answers and please explain why and what I need to do to get correct answer thank you Calculate the mean, and write this as a mixed fraction.
  51. Math[PLease Check]

    Problem: 25-x^2 6 ------ * --- 12 5-x What I got: 5-x --- 2 *PLease Check My Work. No. Factor the 25-x^2 into two factors. Then the 5-x in the denominator divides out. So then is it: 5+x --- 2 yes. 12x12
  52. English

    Writeacher, could you please check the last two paragraphs I posted. I need to check everything for tomorrow. There is still one more paragraph after those and then we will have finished! Thank you for your invaluable help!
  53. Vectors, please check drawing

    Could you check to see if Ive done this right? h t t p : // imageshack . us/photo/my-images/269/vectoriz . j p g /
  54. Math 116 algebra please check

    Solve using the multiplication principle. 10x= -90 The solution is x = -9 please check
  55. English

    What are four things to look for when proofreading? My answers: Reading, grammar check, spelling check, and punctuation.
  56. Spanish 7th grade-Please check

    Please check. How would I say "I feel like drawing. Would it be: Yo tengo ganas de dibujar.
  57. algebra

    Junior ate 30% of the sandwiches at the picnic. If he ate 1 ½ sandwiches, how many sandwiches were there? you cant solve this right? We can't?? Sez who? Let x denote the number of sandwiches. Then we're told 30%x=.30x=1.5 sandwiches. So x=1.5/.30=??
  58. science(check asnwer) !!

    please check my answer shoe companies imbed unique designs on the bottoms of the sneakers they manufacture.what is the main purpose of the designs on the bottoms of sneakers? increase potential energy B. to decrease friction C. To increase friction(I
  59. biology can someone check

    Decide if each of the following statements is true.If it is not rewrite the parentheses part to make it true. 1) Scientific methods include observation,(forming a hypothesis, and experiment). ans: false ;answer questions; solve problems 2)A statement that
  60. Economics

    Can you check my answer Consider an individual with a utility function of the form: U(x,y)=xy , and where m=1, px=2, and py=3 , where m is the individual's income or wealth, pi is the price of good i. Calculate the individual's optimal consumption bundle,
  61. Science 8R - Homework Qs. Check

    If an object has mass of 70.5g and a volume of 64 cm(3), what is its Density? Will it sink or float and why? Answer - The Density of this object is 4512g/cm(3). It will sink because the amount of grams is a lot. Is the answer correct and good???? I
  62. Pre-calculus

    1. The graph of the equation y = x2 – 3 is symmetric with respect to which of the following? The answer is the y-axis . why? 2.The graph of an odd function is symmetric with respect to which of the following? the origin is the answer, why ?
  63. Calculus(Urgent help)

    f(x)=x^3-3x^2+3x+1 near 2 (at a=2) A. Use Linear approximation to approximate. this underestimate or overestimate? Justify answer. C.Approximate f(2.25) using the linear approximation and compare the answer with the exact value. Thanks.
  64. Chemistry

    can anyone check and see if i balanced the equation for the combustion of benzene correctly, thank you. C6H6 + O2 --> CO2 + H2O Answer: C6H6 + 15O2 --> 6CO2 + 3H2O It doesn't look right to me; however, you can check ALL balanced(?) equations and know
  65. Calculus

    6.] Replace the integral in exercise 5 (int. (1/ 1 – t) dt a = 0, b = 1/2with ?1/(1+t) dt with a = 0, b = 1, and repeat the four steps. a. integrate using a graphing utility b. integrate exactly c. integrate by replacing the integrand with a Taylor
  66. Calculus

    The area bounded between the line y=x+4 and the quadratic function y=(x^2)-2x. Hint: Draw the region and find the intersection of the two graphs. Add and subtract areas until the appropriate area is found. I found the intersection points as (-1,3) and
  67. chem

    For this problem, will someone please check my answer? How many grams of oxygen are produced in the decomposition of 5.00g of potassium chlorate? KClO3(s)--->KCl(s)+O2(g) [the equation may not be balanced] My answer is 1.96 g of O2. The balanced
  68. Social Studies

    Hai I was wondering if you could check my answer? It doesn't really talk about this in my text book, and it doesn't really help if I look it up online. Q: Founded by the Mormons, which city was originally called Deseret? A. San Diego B. Provo C. Santa Fe
  69. Calculus

    Determine whether the integral is divergent or convergent. If it is convergent, evaluate it and enter that value as your answer. If it diverges to infinity, state your answer as "INF" (without the quotation marks). If it diverges to negative infinity,
  70. math

    six employees of a small company were asked the distance they traveled to work, to the nearest tenth of a mile. find the range of the distances: 2.7,5.9,1.7,4.7,6.9,3.5 This site demonstrates how to find the range of a group of numbers.
  71. math,correction

    can you check if how i solved it to show that my answer is no is correct. Is -4 a solution to the equation 7x-5+3x=6+x-10 This is what i did: 7(-4)-5+3(-4)=6+(-4)-10 -28-5-12=2-10 -45=-8 so the answer is no -4 is not the solution to the equation. Yes this
  72. math

    Winborne has 35 coins consisting of dimes and nickels. If the value of his coins is $3.30 then how many of each type does he have? Please help to check on correct answer my answer is 31 dimes and 3 nickels
  73. Algebra

    Hi! Can you please re-check my answers. Mt teacher said some of them are not right but when I do it again, I still come up with the same answer. This is about Variations. Thanks! 1. What kind of variation equation is a=kbcd --> my answer is joint
  74. math

    please check my answer. each test is worth 100 points. the following test have been taken and earned 91, 90, 93. for a total of 360 points to earn an A, what grade should be made on the final test to earn an A my answer is 91.5
  75. Chemistry

    Comment on the solubility of the following liquids. State whether at room temperature you expect the components to be highly soluble or almost insoluble, and choose the appropriate reasons why. HINT: It may behoove you to draw the Lewis structure for each
  76. Calculus (pleas help I really need to check this)

    Assume that each of the follwing functions gives the position of an object at time t. Find the velocities indicated by setting up and evaluating a limt algebraically. (a) s(t) = 3t^2, Find v(-1). (b) s(t) = 1/t , Find v(2). (c) s(t) = square root of t,
  77. vocab

    improving vocabulary skills textbook chapter 7 sentence check 2 and final check answers
  78. business

    can you please check my answers to the questions i realy need to check them if they right or wrong
  79. PLease Check My Work

    3. T^2-25/t^2+t-20= (t-5) (t+5)/ (t-10) (t+2) 4. 2x^2+6x+4/4x^2-12x-16= 2(x+2) (x+1)/4 (x-4) (x+1) 5. 6-y/y^2-2y-24= 1/(y+4) *Please check them.- 3. (t-5)(t+5) / (t+4)(t-5) 4. 2((x-1)(x+2)) / 4((x+4)(x-1)) 5. (6-y) / (y+6)(y-4) i don't really understand
  80. Math

    Hi there! How would I check if I got the area of a trapezoid correct? Is there a way to check my work? Thank you.
  81. Math 116 algebra please check

    Simplify 6[-73-(-19-83)]=174 Please check
  82. Calculus

    alright. i need to write a definite integral for the volume and evaluate the integral for the region bounded by y=x^2, y=0, and x=1 revolved about the a) x-axis, b) the y-axis, c) x=2, and d) y=-2. HELP! Lets do the x=2 axis. dV= pi rh dr where r is
  83. Chemistry please check

    1. All of the naturally occurring radioactive decay series end when the radioactive elements have decayed to bismuth (Bi) hydrogen (H) lead (Pb) uranium (U) answer: Uranium (U) 2. This type of radiation can easily pass through a human. gamma ultra-violet
  84. calculus

    I've tried this problem about 20 times and a bunch of different ways and I can't seem to get it right. The problem is: Find the volume of the solid obtained by rotating the region bounded by the given curves about the specified axis. Where y=1/(x^3), y=0,
  85. Calculus

    I've been working on this problem for while, and I keep getting the answer wrong every time I do it. The volume of the solid obtained by rotating the region enclosed by y=e^(5x+1) y=0 x=0 x=0.8 about the x-axis can be computed using the method of disks or
  86. cultural diversity

    NAEYC supports "third space" thinking as a desirable technique for use in A. stimulating children's right-brain processes. B.enhancing staff performance in the early childhood setting. C.Resolving conflicts, especially those involving cultural issues.
  87. Plz Check My Geometry

    Out of 30 questions these few I struggled with. I put what I feel was right but to be sure I would like some one to check my answers and if there wrong redirect me on how to get the correct answer.( after the = is the answer i think it is. 1.) Given points
  88. Plz Check My Geometry

    Out of 30 questions these few I struggled with. I put what I feel was right but to be sure I would like some one to check my answers and if there wrong redirect me on how to get the correct answer.( after the = is the answer i think it is. 1.) Given points
  89. Physics check my answer please

    The atmosphere on Mars is almost all carbon dioxide (CO2), and has a pressure of about 6.9×102 Pa, much less than that of Earth. At −22°C (a warm day on Mars), what is the mass of one cubic meter of the atmosphere? (Assume the atmosphere is
  90. Chemistry

    Write the balanced camical equation for the complete combustion of propane C3H8, a fuel used in gas grills (carbon dioxide and water are products). This is the WRONG answer that I got... 2(C3H8) + 7(02) -> 3(CO2) + 8(H20) Can anybody help me? 2(C3H8) +
  91. Algebra 1

    So I attempted this and I'm not sure if it's the correct answer - and I don't know how to graph it.. Student tickets to the Homecoming game cost $5 each. General admission tickets cost $8 each. So far, 150 tickets have been sold. $900 has been collected.
  92. Urgent: Spanish, Check Answers Please

    6)Claudia y María ____________________ de México. Choices: Somos, Eres, Son, Es The answer is NOT Son or Somos My Answer: Es 9) Nosotros ____________________ mexicanos. Choices: Soy, Eres, es, Somos, Son The answer is NOT SOn, Soy, Somos My Answer: Eres
  93. calculus

    A 15-ft ladder rests against a vertical wall. If the top of the ladder slides down the wall at a rate of 0.33 ft/sec, how fast, in ft/sec, is the bottom of the ladder sliding away from the wall, at the instant when the bottom of the ladder is 9 ft from the
  94. Calculus AB

    Sorry but I've got a lot of problems that I don't understand. 1) Let f(x)= (3x-1)e^x. For which value of x is the slope of the tangent line to f positive? Negative? Zero? 2) Find an equation of the tangent line to the oven curve at the specified point.
  95. Chemistry: Check please, these are hw assignments

    1. Gases can be considered fluids. a.) True b.) False Answer: False 2.Gases are not easily compressed. a.) True b.) False Answer: True 3. Gases spread to fill out space. a.) True b.) False Answer: True 4. Increased pressure on a gas at constant temperature
  96. Calculus

    Please check, if there is something wrong please explain what I did wrong. Thank you! Calculate the d^2y/dx^2. y= e^-x + e^x y' = e^x - e^-x y'' = e^x + e^-x Find the x-coordinace of all critical points of the given function. determine whether each
  97. PreCalculus

    Could someone check these? I'm finding the magnitude for 5 and 6. 5. v=3i+j My magnitude is 3.16 6. v=2i+3j My magnitude is 3.61 For 22 and 23 I'm finding each specified vector or scalar. u=2i-5j, v=-3i+7j, w=-i-6j 22. v+w answer: -4i+j 23. u-v answer:
  98. MATH/ Check?

    Correct. what is pi The definition or the number? The number is 3.14159 but that isn't an exact number. pi doesn't have an exact number except by definition and that is in words and not a number. The ellipse in question above( is translated 4 units to the
  99. Business Fiance

    On November 1, 2009, Broom Company received a bank statement that showed a $2950 balance. Broom showed a $4010 checking account balance. The bank didn't return check No. 124 for $1080 and check No.138 for $720. A $3200 deposit made on October 30 was in
  100. Business Finance

    Please help!!!!!!!!!!! On November 1, 2009, Broom Company received a bank statement that showed a $2950 balance. Broom showed a $4010 checking account balance. The bank didn't return check No. 124 for $1080 and check No. 138 for $720. A $3200 deposit made