Calculus (Answer Check)

89,119 results, page 27
  1. math algebra 1

    There are 4 times as many nickels as dimes in a coin bag. The coins have a total value of 600 cents ($6.00). Find the number of nickels. Write and solve an equation to do so. (i found the answer through guess and check but i need to know the
  2. Pre-Calculus - Reiny

    Reiny you helped me with this logarithm yesterday: How did you write it out as log2 ( √A / B^3 ) Laws of logarithms combine, write as a single logarithm Need help on this question please, Im stuck, don't know where to go abouts from here: I did it on
  3. ALGEBRA 2 help please would appreciate

    x x _____ - _____ = x^2+9 ________ x+3 x-3 X^2-9 solve for x. and check answer thank you show work please
  4. Math check please

    Solve w= (va)/(r^2+a^2) for a. I applied the quadratic formula a= (v/w +- sqrt (v^2/w^2 - 4*(-wr^2)) /2 and I have the answer as a= (v+/- sqrt[v^2+4w^2r^2]/w
  5. Health law

    please check my answer the right to privacy is in the first admendment True or False I said True
  6. Math check

    Factor each expression: x^2-144/x+4 times x^2-16/x+12 This is what I got: (x+12)(x-12)/x+4 times (x-8)(x+2)/x+12 How is the answer x^2-16x+48
  7. Simplify (Another Question/problem) 3

    Simplify. (27a^(-6) )^(-2/3) I got 1/(9a^4 )as my answer, but can someone again please check this. I will appreciate it. I am just unsure if it is correct or not.
  8. medical records

    please check my answer thanks you very much A medical should be completed within how many days after a pt is discharged A 30 B 35 C 60 D 15 E none of the above I picked D
  9. dog behavior

    please check my answer thanks true of false hackles up is an example of a signal I said true
  10. math check my answer please

    Simplify 3√125a^1b^3 (By the way,in 3√, 3 is the index) 3√125a^1b^3 3√125 * 3√a^1 * 3√b^3 5 * 3√a^1 * 3√b^3 I'm stuck what to do next.
  11. Math (factoring)

    Can someone check my answer? 5x^3 - 40 =5(x^3-8) =5(x-2)(x^2+2x+4) Also, how do you factor x^6-y^6 as a difference of cubes? As a difference of squares, is it (x^3+y^3)(x^3-y^6)?
  12. Math Help? Check my answers.

    Simplify 6 x 3 divide 3 - 1. Pre-Algebra? Answers: 2 3 5 6 My answer: 5
  13. Algebra 2 (Math)

    Divide 3x^3 + 3x^2 + 2x – 2 by x + 3 using long division. Check my answer please. 3x^2 – 6x + 20 3x^2 + 12x – 16 3x^2 + 12x – 16, R 58 3x^2 – 6x + 20, R -62 (I think that it's this one)
  14. Algebra HELP PLEASE

    A cylinder has a radius of 4x + 2 and a height of 5x — 4. Which polynomial in standard form best describes the total volume of the cylinder? A.80pix^3+144pix^2+84pix+16pi B.20pix^2+26pix+8pi **** C.80pix^3+144pix^2+84pix-16pi
  15. Math

    The Martin family's truck gets an average o 25 miles per gallon. Predict how many miles they can drive using 7 gallons of gas? Answer: 25 miles per gallon x 7 gallons used=175 miles driven 175/7=25 Can you please check the above answer? Thank you
  16. Chemistry(Please check)

    1) Free energies of formation are a. always positive b. always negative c. never zero d. measured at 298K e. more than one response above is correct I think that free energies can be negative or postive so the answer cannot be e. I chose answer d, they are
  17. Calculus 2

    A tank is full of water. Find the work W required to pump the water out of the spout. (Use 9.8 for g and 3.14 for π. If you enter your answer in scientific notation, round the decimal value to two decimal places. Use equivalent rounding if you do not
  18. Calculus

    According to the US Census, the world population P, in billions, is approximately P=6.342e^(0.011t); where t is in years since January 1, 2004. At what rate was the world's population increasing on January 1, 2005? Give your answer in millions per year. Is
  19. Please check my calculus

    A conical tank has a height that is always 3 times its radius. If water is leaving the tank at the rate of 50 cubic feet per minute, how fast if the water level falling in feet per minute when the water is 3 feet high? Volume of a cone is V=1/3(pi)r^2h A.
  20. math check

    Simplify: sqrt(x^5 y^2)+sqrt(9xy^2) is the answer sqrtx(x^2y+3y)
  21. geometry (check answer)

    Determine whether the line through (0, 4) and (2, 0) and the line through (−2, 3) and (−4, 2) are parallel, perpendicular, or neither. neither?
  22. Math

    Study the equation below. 25=2x+3 Which equation has the same solution? Answers: A. 28=2x B. 22=2x C. 50=x+3 D. 25/2=x+3 My answer is B. 22=2x. Please check if I am right. Thank you!
  23. MATH!!! CHECK ANSWER

    1. How many solutions can be found for the equation 4x + 5 = 10? A. Zero B.One**** C.Two D.Infinitely Many 2.What is the value of z in the equation 3z − 7 = 14? A.3 B.4 C.7**** D. 21
  24. math check

    what is half the difference between 187 and 49? 187-49= 138/2 answer is 69?
  25. geometry

    check my answer please!! find the image of o(-2 -1) after two reflections, first across the line y=-5, and then across the line x=1. (-2,-1) (-1,-6)# (4,-9) (1,-5)
  26. Calculus (Global Max)

    Explain the global optimization process for a continuous function over a closed interval. Be sure to identify all steps involved and clearly explain how the derivative is utilized in this process. Does this have to do with the first derivative rule or
  27. Math

    please help me I am not really sure about this please check answer thanks :) Mary has decided to purchase furniture. She has 2 choices she can pay the full amount of $4,200.The other choice is to finance the furniture for two years with an installment
  28. The US constitution

    Please check my answer thanks :) The constitutional basis of the right to privacy is in the First admentment true or false I said True
  29. Media (Ms.Sue or Writeteacher)

    Who are the stakeholders in media? once you have helped me with this question, I will post my answer. Please check it thanks
  30. Algebra 2

    can someone show me how to do it step by step please! Use a graph and table to solve each system. check your answer {y+x=5 {3x-5y=-1
  31. Science Check Answer

    5. Acceleration is a change in position and speed. True or false I think False
  32. Math: Please check answer

    3. Which of the following is a solution of x² + 14x + 112 = 0? If necessary, round to the nearest hundredth. A.) x = –0.24 B.) x = –4.24 C.) 4.24 *D.) no solution Thank you
  33. Math: Check answer

    3. Which of the following is a solution of x² + 14x + 112 = 0? If necessary, round to the nearest hundredth. A.) x = –0.24 B.) x = –4.24 C.) 4.24 *D.) no solution Thank you
  34. math(algebra 1)

    how do u answer this? please step by step *graph and check to solve the linear system y=-x+3 y=x+1 Thank you very very much!!! :)
  35. Math

    What are the odds against getting three heads in three successive flips of a coin? Odds against A = (1 – 3/6)/ (3/6)= 3/5 = 3::5 Could someone check my answer and correct me if I need it please
  36. Math-- Please Check

    1 2/5 divided by 21 Which example is correct 7/5 * 1/21 = 7/105 = 1/15 or is it? 5/7 * 21/1 = 105/7 =15 You asked this question yesterday. The answer is still the same.
  37. DanH-- I NEED ENGLISH HELP

    Almost_________ work would be better than___________. anyone's hers anyone's her's anyones hers anyones' hers' Please check my previous answer.
  38. Vectors

    Two lines with the slopes m1=4/3 and m2=-7/2 intersect at (3,4). Determine the equations of the two lines and check your answer by solving them
  39. Mathematics

    1.What is 10^3 written in standard form 10 100 1,000 10,000 Please check this, my answer will be the third choice
  40. math

    Could someone check my answer to the following question? Find the other end point given the endpoint of (7,7) and midpoint of (0,0). the other endpoint would be (-7,-7)right?
  41. Anatomy check

    I just want to make sure this answer is correct: The stomach is (superior or posterior) to the diaphragm? posterior Thanks
  42. Health

    please check my answer thanks True or False Dry heat is the best method of sterilzation I said True
  43. Geometry (Please check my work)

    Find the image of O (-2,-1) after two reflections, first across the line y=-5, and then across the line x=1. I believe the answer should be (-1,-6) Can someone please confirm?
  44. Math 8R Qs. Check!!!!!!

    Why is 2/5 not an integer? my answer - Because it's a fraction and integers are whole numbers. Fractions are not whole numbers. am i correct???
  45. Algebra II (check)

    Assume that no denominator equals 0. sqrt 16x^2y^4 = sqrt (4x)y^2 = 4xy^2(answer)
  46. Math Algebra check please

    Solve w= (va)/(r^2+a^2) for a. I applied the quadratic formula a= (v/w +- sqrt (v^2/w^2 - 4*(-wr^2)) /2 and I have the answer as a= (v+/- sqrt[v^2+4w^2r^2]/w is this right?
  47. Calculus

    y = f(x) = x^2 - 3 x (a) Find the average rate of change of y with respect to x in the following intervals. from x = 2 to x = 3 Incorrect: Your answer is incorrect. from x = 2 to x = 2.5 Incorrect: Your answer is incorrect. from x = 2 to x = 2.1 Incorrect:
  48. pre-calculus

    In the following exercise, find the smallest interval for theta [from this point on i will denote theta as '*' for ease of typing] starting with * min= 0 so that your graphing utility graphs the given polar equation exactly once without retracing any
  49. grammar

    please check and let me know if this is correct. What the teacher is asking for for the sentence be changed to is to the left. Rewrite the following sentences, focusing on the grammar area specified in the left column. To enter your answer, click next to
  50. US History

    One way that opposition to the Civil War was suppressed was the denial of what right? and What is set up to make political contributions to candidates for elected office? Your answer could be states rights. Check this site for more information.
  51. Science

    I need to check my answers!! Which of these is not in the family a. sound b. light c. infrared radiation (answer) d. radio waves When an electric charge is shaken to and fro in quick succession, the vibrating charge emits a. infrasonic sound b. Ultrasonic
  52. Science

    I need to check my answers!! Which of these is not in the family a. sound b. light c. infrared radiation (answer) d. radio waves When an electric charge is shaken to and fro in quick succession, the vibrating charge emits a. infrasonic sound b. Ultrasonic
  53. math

    can someone check my answers subtract 7/9-(-13/19)=3/2 multiply (4)(-3/2)=-6f find the first and third quaritles q1 and q3 of the following set of numbers 13,4,12,16,8,14,8,3,10,8, my answer 4:12 find the first and third quaritles q1 and q3 of the
  54. check

    #19, Inclusive Language-Quoting from Biased Material - The mayors and their wives were invited on a tour of the state buildings. Answer: The maors and their wives[sic] were invited on a tour of the state buildings. #8. Puctuation-colon - Studing is
  55. Calculus (Please Check)

    Show that the equation x^5+x+1 = 0 has exactly one real root. Name the theorems you use to prove it. I.V.T. *f(x) is continuous *Lim x-> inf x^5+x+1 = inf >0 *Lim x-> -inf x^5+x+1 = -inf <0 Rolles *f(c)=f(d)=0 *f(x) is coninuous *f(x) is
  56. Calculus-check my answers please

    dy/dx= (y^2 -1)/x 1. Give the general equation of the curves that satisfy this equation. 2. Show that the straight lines y=1 and y=-1 are also solutions 3. Do any of the curves you found in 1) intersect y=1? My Ans: 1. The general solution i found out to
  57. Trig.

    I have answers for these problems, but I wanted to check if I had them right because I wasn't sure on some of them....Thanks. Solve the triangle: 1. a=4, b=8, alpha=30 deg. answer- beta=90 deg., gamma=60 deg., c=7 2. a=5, b=7, alpha=30 deg. answer- beta=44
  58. Math

    I posted this earlier, but got no answer. So I am re-posting. Jean deposited a check for $625, wrote two for $68.74 and $29.95 and used her debit card to pay for a purchase of $57.65. How has her account balance changed? I am a little lost, I understand
  59. French

    I am working on my French homework (direct/indirect) and would like to check my answers and make sure I am on the right track. I am having difficulty with the following: Options: Me/m’, te/t’, nous, vous, le, la, les, lui, leur, y, en A. Je vais au
  60. calc check: average value

    Find the average value of the function "f(x) = x^2 sqrt(1+x^3)" on the interval [0,2]. and this is what i did.. please check for mistakes. thanks :D f(x) = x^2 sqrt(1+x^3), [0,2] f ave = (1/(b-a))*inegral of a to b for: f(x) dx f ave = (1/(2-0))*integral
  61. Math

    Find the most general antiderivative of the function. (Check your answer by differentiation. Use C for the constant of the antiderivative. Remember to use ln |u| where appropriate.) (x^5+x^3+8x)/x^4
  62. Math

    What is the ratio of the measures of side BC to side RS in simplest form? (1 point) A.2:1 B.6:2 C.1:2 D.none of these @Ms.Sue My answer is A. can you please check
  63. pre algebra check

    Use the percent equation to answer the question. What percent of 130 is 156? I get 202.8??
  64. algebra/check my answer

    Three fair coins are tossed. What is the probability that at least one is a head? (Enter the probability as a fraction.) I came up with 7/8 Thank you
  65. English

    Question 12 He wrote a hot check. The word hot is used poorly clearly connotatively denotatively Answer D
  66. algebra

    Check whether the ordered pair is a solution to the equation x =3/4; (1/2, 3/4). Please show me step by step how you came up with this answer because I am really confused.
  67. Romeo and Juliet please check my answer

    In act 5 is this true? Bathasar delivers Friar's message to Romeo.
  68. Anatomy and Physiology

    Please check my answer thanks True or False An example of an organic molecule is table salt I said False
  69. Chemistry(please check my answer)

    The transuranium elements A. are the elements with atomic numbers above 92. *** B. occur in nature. C. are sometimes radioactive. D. all of the above
  70. dog behavior

    please check my answer thank you for your help :) True or False Systematic desensitization can be used to reduce fear I said True
  71. Algebra Answer Check

    What is the simplified form of the following expression? 7m^2 + 6.5n - 4n + 2.5m^2 - n a. 9.5m^2 + 1.5n (?) b. 4.5m^2 + 1.5n c. 1.5m^2 - 4.2n d. 9.5m^2 - 1.5n Simplify the following expression. 1/3(21m + 27) a. 7m + 27 b. 7m + 9 (?) c. 63m + 9 d. 7m + 81
  72. To @Bosnian

    I posted a follow up question to your answer to my recent question about a sum of a series.Hope you can check it. Thank you!
  73. Match Check

    if carrots are selling at $.0125 a pound, how many pound we can buy for a dollor. Answer 800 Right ?
  74. Science 7R - Hw Qs. Check (plzzzz read!!!!)

    1. Arteries branching away from the heart become Answer -larger and larger? am I correct?
  75. dressmaking

    need to check my answer, exam 042020 which type of line is considered to be softening line in design
  76. Fitness (Check answers)

    The lack of balance can lead to disease. True or false My answer is FALSE.
  77. Math check

    multiply: sqrt-25 sqrt-100 is the answer 50?
  78. I need someone to check this

    Add and Simplify: 100x/x+10 + x^3/x+10 I have the answer as X^3+100x/X+10 is this correct?
  79. Check Answers (Math)

    Which of the following has a graph that is wider than the graph of y=3x^2+2? A) y=3x^2+3 B) y=0.5x^2+1 C) y=-4x^2-1 D) y=4x^2+1 Would the answer be B?
  80. math-please check my answer

    Find the slope of these two points (3,5)and (-5,-2) Is the slope 3?
  81. Algebra

    Which equation has the graph parallel to the graph 9x + 3y =-22 y=3x-22**** y=-3x + 8 y=1/3x + 12 y = -1/3x-2 Please check my answer
  82. Math-please check my answer

    Find the slope of the following points(8,9) and (10,-9) -9 - 9 / 10 - 8 = -18/2 = -9 is the slope?
  83. Pythagorean theorem

    How do I check my answer when my triangle is an Acute Triangle?
  84. calc help showed work

    If the function f has a continuous derivative on [0,c], the the integral(o to c) of f'(x)dx= a)f(c)-f(0) b)absolute value (f(c)- f(0)) c) f(c) d)f'(x)=c e)f"(c)-f"(0) My work: so the the answer to the integral is f(x) and when find the answer from o t0 c,
  85. Calculus

    Let 5x^2 - 3xy + 58 = 2y^3 Use implicit differentiation to find y' for the above equation. The first thing I did was move 2y^3 over to that everything is equal to 0. With the -3xy I used the product rule and expanded that. After solving I got.... 10x(3 * y
  86. particular tense was chosen

    Why a particular tense was chosen for each of the following statements. Select the best answer. A. Jack has known Mike for about a year. 1. Use the present perfect when the exact time of a past repeated action isn't important 2. Use the past perfect to
  87. Language Arts

    Rewrite each sentence below correcting the double negative. 1. The shoppers looked for bargains at the store, but there weren't none. Answer: The shoppers looked for bargains at the store, but there were none. 2. She couldn't hardly say her own name.
  88. Calculus

    A ball is thrown up on the surface of a moon. Its height above the lunar surface (in feet) after t seconds is given by the formula h=308t−(14/6t^2) Find the time that the ball reaches its maximum height. Answer = Find the maximal height attained by
  89. American government check my answer

    5. Which of the following are examples of discriminatory laws passed by the U.S. government that impacted those depicted in the photo? Select all that apply. (2 points) Chinese Exclusion Act Civil Rights Act of 1965 Immigration Quota Act DREAM Act my
  90. Math

    Can someone please check my work for me? Write an equation of the line satisfying the given conditions. 9) Intersects the line y = 2 + 3x at infinitely many places. 9) A) y = -3x + 2 B) y = 2x + 3 C) y = -1/3x + 2 D) y = 2 + 3x Is the answer A Use the
  91. Punnet Squares- Check my answer please.

    A species of clam shows incomplete dominance in the expression of its shell color. RR is the genotype for red shell, Rr is genotype for an orange shell, and rr is the genotype for the yellow shell. Predict the outcome of a cross between an orange shelled
  92. Calculus

    Please look at my work below: Solve the initial-value problem. y'' + 4y' + 6y = 0 , y(0) = 2 , y'(0) = 4 r^2+4r+6=0, r=(16 +/- Sqrt(4^2-4(1)(6)))/2(1) r=(16 +/- Sqrt(-8)) r=8 +/- Sqrt(2)*i, alpha=8, Beta=Sqrt(2) y(0)=2, e^(8*0)*(c1*cos(0)+c2*sin(0))=c2=2
  93. Child Development

    When preparing an environment for school- aged children the caregiver should ensure that the A. outdoor area allows them to continually challenge their physical ability B. Children are continually intermixed with the younger children C. Environment
  94. Chemistry

    Hi! Thanks for checking my question out! ____ 2. Which of the following takes place during a redox reaction? (1 point) a) Electrons are gained only. b) Electrons are lost only. c) Electrons are both gained and lost. d) Electrons are neither gained nor
  95. ~MATH~

    ***Check Answers Plz*** 1)suppose the total momentum of two masses before a collision is 100 kg m/s.what is the total momentum of the two masses after they collide? a~0 kg m/s b~50 kg m/s c~100 kg m/s****(My answer) d~200 kg m/s 2)What is the momentum of a
  96. Can someone check my answer please

    Can someone check this for me? Suppose that the number of cars, C, on 1st Avenue in a city over a period of time t, in months, is graphed on a rectangular coordinate system where time is on the horizontal axis. Suppose that the number of cars driven on 1st
  97. Algebra

    I'm not quite sure about these problems. I know how to do them, but it seems that I get the wrong answer. Maybe I'm supposed to get 'no solution' but I'm not sure. Could someone please help me with them? 5|6-5x|=15x-35 2|3x-7|=10x-8 1/4|4x+7|=8x+16 Ok for
  98. Calculus

    I'm having trouble trying to figure this problem out, I know the variables of the problem but I don't seem to get the right answer here is the formula that i'm using: A = P (1 + r/n)^n * t. Here is the problem: If Joe deposits $12,000 into an account that
  99. math

    A woman buys a $ 78 necklace at a jewelry store. She gives the jeweler a check for $ 100. Because he does not have the $ 22 change, he goes to another merchant next door. There he exchanges the woman's check for $ 100 in cash. He returns and Gives the
  100. dwrls,math

    PLEASE LOOK IN THE BOTTOM OF THIS MESSAGE...... solve for x: 3x - 2y = 6 i need help in solving this: the possible answers has to be one of these: A)2y +6 divided by 3 b)3x -6 divided by 2 C) 2 + 2y D) 2/3y + 6 but how i keep trying and i don't get non of