Calculus (Answer Check)

88,703 results, page 18

  1. Math

    I need someone to check my answer, can someone please help me? Here is the problem: Business and finance. In a bottling company, a machine can fill a 2-liter (L)bottle in 0.5 second (s) and move the next bottle into place in 0.1 s. How many2-L bottles can be filled by the ...
  2. calculus help work

    a force of 1250 pounds compresses a spring 5 inches from its natural length. find the work done in compressing the spring 8 additional inches. f=kd 1250=k5 k=250 then what do i do. i have to do this the calculus way, not the physics way. by using integrals the answer choices ...
  3. Calculus

    Can someone check my answer? The change in the momentum of an object (Δ p) is given by the force, F, acting on the object multiplied by the time interval that the force was acting: Δ p = F Δt . If the force (in newtons) acting on a particular object is given by ...
  4. Anatomy and Physiology

    Hello! Thanks for checking my question! ____ 15. When the aortic valve opens into the aorta, blood flows (1 point) a) out to the body. b) into the right atrium. c) into the left ventricle. d) out of the pulmonary artery. My Answer: A Could someone please check my answer? ...
  5. Calculus Help Please!!!

    Consider the function f(x)= x −1≤ x< 0 f(x)=tan(x) 0≤ x ≤ π/4 a. Draw a neat sketch of this function. b. Is f(x) continuous at x = 0? (Justify your answer.) c. Is f(x) differentiable at x = 0? (Justify your answer.) show steps! Thanks!
  6. please check my answers

    1. $5000.00 compounded annually at 6% for 5 years= Answer $6,691.13? 2. $5000.00 compounded quartley at 6% for 5 years= Answer $6,719.58? 3. $5000.00 compounded quartley at 65 FOR 5 YEARS= Answer $6,734.28? 4. $5000.00 compounded annually at 6% FOR 6 YEARS= Answer $7,092.60...
  7. English

    What are four things to look for when proofreading? My answers: Reading, grammar check, spelling check, and punctuation.
  8. Pre-Calculus HELP!!

    The length of a day in Philadelphia, Pennsylvania, is given by the sinusoidal function, f(t), which represents the number of hours of daylight t days into the year: f(x)=11+2.2sin(2pi/365)t-1.25).How many hours of daylight are there on the twelfth day of the year? Round the ...
  9. Calculus

    R=M^2(c/2-m/3) dR/dM=CM-M^2 I found the derivative. Now how would I find the vale of M that maximize the derivative dR/dM? set it to zero, and solve for m. You get two solutions. Use the second derivative to see which one is the max. I get M=C. How do I go from there? What do ...
  10. English

    1. I'll probably go and check out that apple, actually. 2. I'll probably go and check that apple, actually. 3. I'll probably go and check on that apple, actually. ------------------ Which one is correct? Do we have to use 'out' after 'check' here? 4. The waitress who served in...
  11. Language Arts - Please Check Answer

    Please help me with the following question: A paradox is a literary device often used to A. emphasize or make readers think about important ideas. B. provide hints or clues about events that occur later in a story. C. explain a character’s reason for doing or saying ...
  12. calculus

    The length l of a rectangle is decrasing at a rate of 5 cm/sec while the width w is increasing at a rate of 2 cm/sec. When l = 15 cm and w = 7 cm, find the following rates of change: The rate of change of the area: Answer = cm^2/sec. The rate of change of the perimeter: Answer...
  13. Local Standards And Regulations

    Sunny Smiles Day Care Center is organized as a partnership. Which one of the following business tax forms will the owners need to file 75 days after the close of the fiscal year? A. Form 990 B. Schedule C C. Form 1065 D. Form 1120 My answer is (A) can someone check my answer.
  14. URGENT! Last calculus question!

    Hey! So, I was wondering if someone could answer this. I am mad studying for my exam and I still have a few questions left that I just don't have time to answer, and the assignment is due tomorrow. Thanks and here is the question: Use calculus and algebraic methods to do a ...
  15. Design of suitable pin size

    Appreciate if someone can take the time to check my answers to the following question. If wrong, could you point me in the right direction. A round bar, 800 mm long, CSA 15 mm^2 experiences an applied tensile load of 6 kN and stretches elastically by 3 mm. a) Calculate the ...
  16. physics...please check my answer...

    4.A mass of one kg of nickels has a monetary value in the US $ of approximately: a. $1 b. 10 cents c. $10 d. $1000 is it c?
  17. English

    Please check my answer Is this phrase correctly capitalized ? Martin Luther King day I said yes
  18. math

    please check my answer thanks :) The monthly payment on a $90,000 mortgage at a rate of 7.5% interest for 30 years is $630.00
  19. math

    Hi! I am trying to solve an order of operation question would you please check my answer... 36+9/3*5 I soved it to equal 51 9/3=3 3*5=15 36+15=51 Thanks for your help!!
  20. Health

    Normal urine is____________ as indicated bt it's ph value I think it is slightly alkaline please check my answer thanks
  21. Math

    Can someone check this problem for me use the foil method to find the product (6z-u)(6z+7u) my answer is 36z^2+36zu-7u^2

    The force applied by the e-brake is F(eb) = m*a(eb) = -8.13*1452 = -12,100 N I didn't get the same answer - I got 11,804.76....please check
  23. Trig

    Need answer check pls. Find the rectAngular equation for the plane curve by parametric equAtions. X=t +4 , y= t^2
  24. Math(Please check)

    Sorry I forgot a question. 2) rationalize the denominator. 4/sqrt6 My answer is 4sqrt6/ 6 Am I correct?
  25. Math-Algebra-Please check

    What is the solution of 3 times the absolute value of x + 5 <= 6 I think the answer is x <= - 3 and x >= -7 If I'm not right, could you tell me why?
  26. math 116

    Solve using the multiplication principle Don't forget to preform a check 11x=-99 Would the answer be -9?
  27. math

    hi ms.sue could you please check my answer in problem The perimeter of a square is 64ft. Find the length of a diagonal. c=22.62
  28. Science HW Qs. Check (plzzz read!)

    The bodies of almost all organisms are 50 to 95 percent what? answer - water am i correct????
  29. SS7R - HW Qs. Check

    Which geographic theme would be most concerned with international trade? answer - interaction right????
  30. Science 8R - HW Qs. Check (#2)

    How long does it take the earth to revolve around the sun? my answer - 365 days right????
  31. Science check answer

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

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

    Another problem with my checking. The teacher says the answer is 280 but when I try to check it I never get the right one (24-d)/16=19
  34. 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?
  35. english (check my answer)

    What is a key characteristic of a refrain in a poem? a. imagery b. alliteration c. repetition d. rhyme I think it's c?
  36. Algebra

    Please check my answer and let me know if it is right or not. 25+.32m(800)=281 28+.30(400)=148 70+40+2(30+.29)=830 +.29m
  37. Math (check answers)

    1)What is the simplified form of the expression? 5d^6*d^-12? A)5d^-72 B)6d^-72 C)5d^-6**** D)6d^-6 I think that the answer is C. If anyone could tell me if I am correct that would be great.
  38. Math Answer Check

    1. cos^-1((-sqrt3)/2) 5pi/6 2. arccos(cos7pi/2) -pi/2 3. sin^-1(sin7pi/4) -pi/4 4. csc(arctan11/60) 61/11
  39. math

    Can I double check this I'm not entirely sure if my answer is correct. What is the smallest perfect square that has a factor of 90. 8100?
  40. precalculus

    Can you check my work? find two sets of parametric equations for the given rectangular equation x+y^2=4 answer: x=-y^2+4 x=-t y=-t^2+4 x=-t^3 y=-t^3+4
  41. Reading check

    In "I, Too" by Langston Hughes. the kitchen is a symbol for guest beauty moral strength segregation My answer is C
  42. Math

    Given the following values, which point would be considered an outlier? x - 1,2,3,4,5,6,7,8,9 y - 1.2, 4.3, 2.8, 4.1, 5.2, 6, 7.1, 7.9, 9.4. A.) (1, 1.2) B.) (2, 4.3) C.) (4, 4.1) D.) (6,6) * Can someone please check my answer?
  43. Calculus

    I've been trying to solve the improper integral of ln(x)/sqrt(x) dx as a=1 and b=infinity I am required to solve for this question and according to my answer, it is divergent. However, my answer is infinity-4. Is it acceptable to say that infinity minus a number is simply ...
  44. 7th grade math check

    Ok I was wondering if you could check these 3 problems please. I am suppose to set these equations equal but I am not sure if did them right. I think I accidently solved these systems as substitutions. The answers are suppose to be in coordinate pairs. 1) x - y = 11 -3x + y...

    please check my answers ! 21. Find the unit price for each option shown below. Round to the nearest cent when necessary. Indicate which option is the better buy. Option I: 10 candy bars for $6.75 Option II: 12 candy bars for $7.25 ANSWER= 10/$6.75=$1.48 12/$7.25=$1.65 10 Units...

    please check my answers ! 21. Find the unit price for each option shown below. Round to the nearest cent when necessary. Indicate which option is the better buy. Option I: 10 candy bars for $6.75 Option II: 12 candy bars for $7.25 ANSWER= 10/$6.75=$1.48 12/$7.25=$1.65 10 Units...
  47. Calculus

    Find the average value over the given interval. y=3x^5; [-3,3] I can't seem to get the answer, 0. 1/(3+3) [integral -3 to 3 (3x^5)dx] and I get 273/2
  48. calculus

    what is the integral of x^2-x+6/x^3-3x? the process involves partial fractions, and the answer is supposed to include ln and arctan... i just don't know how to get there.
  49. calculus

    what is the integral of (x^2-x+6)/(x^3-3x)? the process involves partial fractions, and the answer is supposed to include ln and arctan... i just don't know how to get there.
  50. Calculus

    What is the volume of the region enclosed by the planes x+z = 3, y=x, y=0, z=0, and the cylinder x²+y²=1? Is the answer 5 because I keep on getting different answers for this?
  51. calculus

    the equation cosx=x has a solution in what interval?...the answer is given as [0,pi/2] can someone please explain why?? thnks
  52. calculus

    Consider the function f(x) whose second derivative is f(x)=9x+6sin(x). If f(0)=4 and f(0)=3, what is f(x)? Please do not include the constant (+C) in your answer.
  53. Calculus

    Find the average value of the function on the given interval: f(x)=cos(16x), [0,pi/2] The answer I got is 1.
  54. 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?
  55. Calculus

    same as my question below please help me post your answer on here if you have one on these forms of course 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 = 4 2 1 7 6 3
  56. Pre CALCULUS

    How many real solutions does the equation x+5=x have? Please explain your answer to the best of your abilities thanks :)

    How many real solutions does the equation ãx+5=x have? Please explain your answer to the best of your abilities thanks :)
  58. 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.
  59. 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=
  60. Calculus

    ã6(2ã6 - ã5) How do you get 12-ã30? I keep getting a way different answer:\ Btw not sure if the radicals will show up.
  61. calculus

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

    using quadratic formula solve |x^2-2x-6| = 4. and answer have to be 1+-sqrt3, 1+-sqrt11 i just not get how to get this.
  63. Applied Calculus......

    Rewrite the expression using positive exponents only. (Simplify your answer completely.) (x^3-y^3)(x^-3+y^-3)
  64. math calculus (please help me)

    Solve for t. (Round your answer to two decimal places. (2 − (2.479/35))^7t= 29
  65. Calculus

    How would I use the chain rule here for x^2+y^2=z^2 but still have my answer in equation form?
  66. Pre-Calculus

    I've tried to simplify this a million different ways, but I can't seem to get the right answer. Please help. ((1/(x+h)^3)-(1/x^3))/8h
  67. Calculus

    Find the work done by F(x,y,z)=(x^2y)i=(x-z)j+(xyz)k where c=(t)i+(t^2)j+(2)k, 0<t<1. The answer is supposed to be -17/15, but i keep getting -13/10. Any help on the process would be appreciated.
  68. Calculus

    Find the area of the region bounded by the curves y=12-x^2 and y=x^2-6. Hint:The answer should be a whole number.
  69. Calculus

    Use implicit differentiation to differentiate y=x8/37, by writing it as y37=x8. Express your answer only in terms of x.
  70. Pre-calculus ( Absolute value)

    Why does |7 + 3x| = x -1 have no solution? I could plug in, for example 5, and the answer would be positive. Thank you =)
  71. calculus

    Use the Trapezoidal Rule to approximate ¡Ò8 4 ln(x2+5) dx using n=3. Round your answer to the fourth decimal place.
  72. Calculus

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

    The end behavior of f(x)=(2+x^2)/(x^2-36) most closely matches which of the following: y=1 y=-1 y=2 y=0 There is no leading coefficient so I am not sure what the answer is.
  74. calculus

    Consider the following function. f(x) = (6 − x)e^−x (c) Find the point of inflection. (If an answer does not exist, enter DNE.) (x,y)=( , )
  75. Calculus

    Differentiate and simplify as much as possible. Cube root(5z+6/-9z+3). The answer should be y'= (23(-9z+23)^2/3)/9(3z-1)^2(5z+6)^2/3) So far, I'm stuck at y'=[23/3(5z+6)(3z+1)][((5z+6)^1/3)/((-9z+3)^1/3)]
  76. Calculus 1

    y= 3/x^3; [1,3] Find the area under the graph of the function over the integral given. The book answer is 4/3
  77. Calculus

    Find the limit, if it exists. (If an answer does not exist, enter DNE.) lim x→∞ sqrt(25x^2 + x) − 5x
  78. Math (Pre-Calculus)

    9t^4 + 6t^2 + 2 the problem is asking for the value of t at which the graph is at it's minimum. what i did was set t^4 to x^2 and t^2 to x. So that means I have 9x^2 + 6x + 2. Completing the square and the vertex formula gave me the same answer of -1/3 as x. So setting that ...
  79. Math 6

    Can someone check my answer? Q:r. Harry rides his bike 25 3/8 miles. Karen rides her bike 25 2/8 miles. Who rides farther? A:Karen rode farther. This is because 3/8 is about 37/100 and 2/5 is 40/100. Since both fractions have 25 as a mixed number for them, I didn't have to use...
  80. Introduction to Graphic Design

    Hello! Thanks for checking my question out! ____ 9. Susan is practicing her creativity by finding relationships among seemingly unrelated topics. What creative strategy is Susan using? (1 point) a) reverse brainstorming b) free association c) connecting ideas d) perspectives ...
  81. Calculus

    Determine if the Mean Value Theorem for Integrals applies to the function f(x) = x^3 − 16x on the interval [−1, 1]. If so, find the x-coordinates of the point(s) guaranteed to exist by the theorem. f(a)=15 f(b)=-15 f'(x)=3x^2-16 f'(c)=-15 I am now lost from here, I do not ...
  82. Health insurance

    Please check my answer thanks for the help :) If an enrollee uses more services than originally assumed per the PPPM calculation then what would the paln do? A. show a profit for that period B. show a loss for that period C need a contract renegotiation D. reguire that the ...
  83. English

    1. Listen again and check on T if the sentences match with the dialogue. Check on F if they don't match. 2. Listen again and check T if the sentences match the dialogue. Check F if they don't match. ----------------- Which one is correct? Do we have to use 'on' or 'with'?
  84. American Government

    1. Which of the following is NOT a criticism of the media's influence on public opinion? a. bias in reporting b. negative focus c. watchdog reporting d. visual imagery Answer: b 2. Which of the following is NOT a function of an interest group? a. supplying information b. ...
  85. 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. A. Write a system of ...
  86. MATH plz helo check my answer

    -3 ≤ 2x - 5 < 13 i thing the answer is 1 < x < 9 and how would you graph this on a number line so MY NUMBER LINE IS 1 TO 9, SO AT 1 i have a closed circle and at 9 i have a open circle and its shaded in is it right
  87. Math

    The of the 45 numbers is 9.the average of the first 20 is 10 and the average of the last 24 is 8.find the 21st number. I have solved please check this. 9=x/45 ,so x=415. 10=x/20, x=200 and 8=x/24, x=192 So,415-(200+192)=23.answer Is this way and answer correct?
  88. Math, check my answer

    Kelvin and Marsha are going to dinner and a movie this evening. Kelvin wants to have at least $70 cash in his wallet. He currently has $10. How much money, x, does Kelvin need to withdraw from the bank? Answer choices: x + 10 > 70; x > $60 x + 10 ≥ 70; x ≥ $...
  89. Chemistry-check answers

    The volume V of a gas varies inversly as pressure P is exerted. If V is 3.5 liters when P is 5 atmospheres, find V when P is 8 atmospheres. Answer: 2.188 liters 2) If y varies jointly as x and the cube of z, and y=378 when x=4 and z=3, find y when x=9 and z=2. Answer: y=252
  90. Math check

    Consider the binomial random variable x with n = 30 and p = 0.85. (a) Find the mean. (Give your answer correct to one decimal place.) 25.5 . (b) Find the standard deviation. (Give your answer correct to two decimal places.) 30.85
  91. Math

    1. Three student share 5 peaches equally. How many peaches does each student get? Answer: 1 2/3 2. Six friends share 4 sandwiches equally. What fraction of a sandwich does each friend get? Answer: 2/3 Please check the above two answers. Thank you
  92. English

    1. This time only the members of Group One can answer the questions. 2. This time only the memvers in Group One can answer the questions. (Which preposition should I use? Can we use both prepositions? Which one is commonly used?) 3. Group One members only can answer the ...
  93. 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 /
  94. Government

    The major function of congress: A. is to check the president. B. is to inform the people. C. is to enact legislation. D. is to check the Supreme Court.
  95. Please check-Reiny

    Could you check these two problems? 3sqrt (y+2) = 3 is y = 25 Answers were: true or false I said true because I did it like this Square both sides=y + 2 = 3^3 y+2 = 27 y = 25 and sqrt (2y-6) = 3-y for y answes are: no solution 5 3,5 3 I said 3 because I did it like this: 8y -...
  96. Math

    1. I did it this way, but it doesn't check right 2(10-y)=30 _ _ 2 2 (10-y)=15 +10 +10 y = 25 Check: 2 (10-15) = 30 -30 is not equal to 30!!!
  97. precalculus

    Can you check my answer? Which of the following shows the best next step to prove the following by mathematical induction? 1+4+7+10 + + (3n-2)=n/2(3n-1) 1.When n=1, the formula is valid because (3*1-2)=1/2(3*1-1) (3-2)=1/2(3-1) 1=1/2(2) 1=1 A. You must show that 1+4+7+10 + + (...
  98. 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 wall? Answer with 2 ...
  99. Calculus check

    Given f(x)=x^4(2x^2-15). On what interval(s) is the graph of f concave upwards? A. (0, sqrt(3)) B. (-sqrt(3), 0) C. (-sqrt(3), 0) and (0, sqrt(3)) D. (-sqrt(3), sqrt(3)) E. (Negative infinity, -sqrt(3)) and (sqrt(3), infinity) I got E
  100. Calculus

    f(x)=[sqrt((x-68)^2 + x^3-116x^2-417x+267460)] - 10 To find the minimum value of we need to check the value at the following three points (in increasing order). (You will need to use a numerical method, like Newton-Raphson to find one of these points.) x1=? x2=? x3=?
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