Trig check my work please?

90,506 results, page 36

  1. Geometry

    Solve the quadratic equation. 13) x2 - x = 72 A) -8, 9 B) -8, -9 C) 1, 72 D) 8, 9 Can some one please check my answer and let me know if I did it the right way. x2-x-72=0 (x-9)(x-8)=0 so the answer is D 8,9
  2. Algebra

    √(y+4)-4=1 Y = or no solution I keep coming back to no solution but am wondering if I am confusing myself Please check Thank you
  3. Math(Please check! Thank you!!)

    metric system conversions 1)3.68kg = ? g (3.68 kg) (10^-3 / 1kg) = 3.68 x 10^-2 g 2) 568cm = ? m (568cm) (1 m /100cm) = 5.68 m Are these correct?
  4. Chemistry(Please check)

    Write the n, l, ml, and ms values for the first two elements, H and He. H: n=1 l=0 ml=0 ms=+1/2 He: n=1 l=0 ml=0 ms=+1/2 for the first electron for the second: n=1 l=0 ml=0 ms=-1/2 Are these correct?
  5. algebra 2 please check

    Identify the line(s) of symmetry for the conic section x-(y-1)^2=2 I have this... (Y-1)^2=(x-2) Vertex (2,1) Symmetry y=1. Is this correct?
  6. Science

    Estimate the length of a baseball bat and mass of a baseball in SI units. How can you check how close your estimates are? Please help! Thank you
  7. 8th grade pre-algebra

    Can you check the following questions,please? Simplify 30. (-2y)^0/(3x^2)^-3 = 1/(3^-3)(x^-6) = 1/-27x^-6 = 27x^6 42. (-7x^5/14y^3)^3 = (-1^3)(x^15)/(2^3)(y^9) = (-1x^15)/8y^9
  8. 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!
  9. 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.
  10. Math

    f(x)=1/2(x^2-2x+15) I did the quadratic formula and my answer is 2 plus or minus i square root 8/2. Could someone check my answer please
  11. 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
  12. @Online Students

    A student recently posted this. "quick backstory; i've been cheating on all of my work except portfolios this whole year cause i'm in online school. but i'm wanting to learn since there's gonna be ACT test in REAL so... please help me on how to do this!" Please heed his ...
  13. english

    Choose the word needing an apostrophe or an apostrophe and an s. If the sentences is correct, choose no error. 1. Why havent you dotted your j’s? haven’t **** j’s’ no error 2. Ounce for ounce, humans aren’t as strong as most insects. human’s insects’ no error...
  14. college physics helpasap

    The water skier in the figure is at an angle of 35degree with respect to the center line of the boat, and is being pulled at a constant speed of 15m/s . 1)If the tension in the tow rope is 90.0N, how much work does the rope do on the skier in 30.0s ? 2)How much work does the ...
  15. Physics Homework

    I have a few questions that I don't understand and would like to get checked, please? 5.If energy is conserved and momentum is conserved, would they both have to be conserved simultaneously in some interaction? My answer: No because each engergy and momemtum is being ...
  16. ap chemistry :(

    consider the reaction C6H14 + 9.5O2 yields 6CO2 + 7H2O at constant pressure. which response is true? 1. work may be done on or by the system as the reaction occurs, depending upon the temperature. 2. work is done on the system as the reaction occurs. 3. no work is done as the ...
  17. trig

    Indoor steps generally are steeper and have smaller landings. A staircase has a 9 inch vertical rise per step to get to the second floor of a house. If the angle of elevation is 36.8 degrees and there are 16 feet of horizontal space total for each of the landings combined, ...
  18. English

    Ms Sue, can you please check these two sentences, I need to include in an email? Thank you. 1) Sorry, for disturbing you. We have received email (emails) from four of your students, namely ..... 2) Could you please let me have your list of students before tomorrow's meeting, ...
  19. 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 critical point is a relative...
  20. algebra Please c if this is right?

    Mrs. /green is randomly choosing team captains from her class of 12 girls and 10 boys. ?She draw one name from the bag, SETS IT ASIDE, and then chooses a second name. /What is the probability that both team captains are girls? I would say it is 2/7 Can someone check to see if ...
  21. Math-- Desperate for help!

    Find the amount in an account if $2000 is invested at 6.125%,compounded semi-anually,for 2 years. A. $2,256.49 B. $2,252.50 C. $2,324.89 D. $544,757.84 One of these is the correct answer. I am coming up with (D) 544,757.84 Can you check, because I am probably wrong. You are ...
  22. trig

    An airplane is heading north at an airspeed of 500 km/hr, but there is a wind blowing from the northwest at 50 km/hr. how many degrees off course will the plane end up flying, and what is the plane's speed relative to the ground? So here is my work... 50cos(45)+500= 535.355 ...
  23. 8 grade math

    please check my answer thanks At Albany's Children's Hospital, the hospital cenuson Jan 4 is 110 According to the following data, what's the hospital census for Jan 5 Admissions 10 Discharges 2 A&D 1 so this is what I got 110 + 10 (#of admissions) = 120 then - 2 # of ...
  24. Algebra

    I have two short questions which I think I know the answer-could you please check? If I write log(b)x - 2log(b)y as a single logarithm it would be log(b) x/y^2, correct? If not please help and Is the function f(x) = 1/x a exponential function -I think it would be because it ...
  25. 5th grade-grammar

    Can you please check these sentences for me? -Write a sentence that includes an adverb modifying an adjective That person is sad. -Write a sentence that includes an adverb modifying an adverb I like to eat fast. Please let me know if these are right. thank you
  26. physics

    1. In which of the following cases is work done on the object? A. Lifting an object off the floor. B. Pushing an object, but it does not move C. Carrying an object at a constant velocity D. None of these 2. The energy of a system increases when A. a force is applied to it B. ...
  27. socialstudies(check answers please)

    what was the purpose of the gettysburg address? A.to end the revolutionary war and gain independence.(I PICKED THIS) B.to launch the war for independence and american democracy. C.to honor fallin soldiers in the civil war and cement notion of equailty for all people. D.To ...
  28. Language Arts - The Odyssey - Please Check Answers

    Please help me with the following question: Read the excerpt from The Odyssey. Six benches were left empty in every ship that evening when we pulled away from death. And this new grief we bore with us to sea: our precious lives we had, but not our friends. No ship made sail ...
  29. Physics Help Please

    A 35-mm camera equipped with a 40-mm focal length lens is used to photograph a tree 17 m tall. If a 32-mm high image of the tree on the CCD sensor is required, how far should the camera lens be from the tree? Show Work Please! Thank you so much!
  30. Physics Help Please

    A 35-mm camera equipped with a 40-mm focal length lens is used to photograph a tree 17 m tall. If a 32-mm high image of the tree on the CCD sensor is required, how far should the camera lens be from the tree? Show Work Please! Thank you so much!
  31. Algebra

    I am having trouble with the following problem can someone please help me to figure out how to work it..... -8x-21= -23 2/3
  32. Mrs. Sue I need u

    -3/5m= -45 if you can't see the m its next to the fraction sign thank you and could you please show your work
  33. algebra

    I have tried to work these problem and seem to do it wrong.I need help. 3/4(5x-1/2)-5/3<1/3 could help me please. 6y+2y<-24= y=-3 is this right.
  34. Algerbra I

    Help me solve this. Please show me the work so I know how to do it. The difference between a number and twice it's reciprocal is 17/10.
  35. biology

    i don't know what to write for my introduction for a work about the human lie cycle, please hep me
  36. Algebra 1

    -1/2<1/4+-3/4<1/8 these symbols / stand for fractios like 1/2 PLEASE SHOW YOUR WORK I REALLY NEED HELP.
  37. Algebra 2 URGENT

    Solve by using the quadratic formula. Please Show All Work! 4x(x+3)=15
  38. Algebra 2 URGENT

    Solve the problem using the "z" method. Please Show All Work! u^4+6=-5u^2
  39. Stoichiometry

    if you have 66.6g NH3, how many grams of F2 are required for a complete reaction? please show work!!!!!
  40. MATH-Algebra

    please show/explain what I have to do to work the below problem: p/3 x 24 = 16 p=___________ thank you
  41. Math

    Multiply eight and eighty-eight hundredths by two and three tenths? can show the work please.
  42. physics

    What is the mass of a lead sinker witha volume of 3cm3? please show work Thank you
  43. Algebra

    Please show work because I have multiple questions like this and it will help me do the others. Thanks! Solve -12=w/-4. a. -48 b. -3 c. 3 d. 48
  44. Algebra

    how do you solve this quadratic equation? tickets= -0.3x^2+12x+10 Please show the work so I can understand.
  45. math

    The number of real solutions to the system of equations y=2sin(x^2) and y=x^3-x is a. 0 b. 1 c. 2 d. 3 Please show your work! Thank you!
  46. Science

    How many times did earth orbit the sun between140ce and 1543, please show work
  47. math

    What would your solution set be? Please be sure to show your work so that we can discuss the solutions. x + 4y = 1 2x + y = 7
  48. algebra

    determine the domain, range and horizontal asymptote Please show all your work f(x) = - (3/4)^x - 1 Help!
  49. Calculus

    Use the first principles definition to differentiate y = 5x^2. Please show all your work!
  50. college algebra

    solve the equation below. Please show all work. log3(x/2-9)=4
  51. algebra

    log(base6)3600=5x Whats the exact answer? show work please
  52. Geometry

    Find the center of the circle using the equation provided. Please show work! x^2 + y^2 = 16
  53. Math

    simplify the expression below,using the laws of exponents. (5^4 x 5^7)/ 5^8 Show your work. PLEASE HELP ME!
  54. college algebra

    find functions f anf g so that fog equals H H(x)=ãx^2+17 please show work
  55. calculus

    Plot the points and determine the slope of the line containing them (-7,-4);(8,-4) please show work
  56. math

    please show work divide 1/2 divided by1/8 need to see steps thanks
  57. Math

    19-(3-x) = 5x. Can u show your work please? I know how to solve questions like these but couldn't figure it out with that x after the 5 '
  58. Algebra-help

    7. | 3x - 2 | = 8 and | x + 1 | = 1 What value of x satisfies both equations above? please show your work. I do notunderstand this. Thank You
  59. algebra

    determine the equation of the line through the points (8,2) and (-4,-1) Please explain and show work
  60. algebra 2 help please would appreciate

    4/x+5/y divide 3/x+7/y simplify complex fraction thank you show work
  61. science

    How do thermometers work? I have already looked on Google and I cant find anything! Please help me!
  62. Math! Ms.Sue Please

    Evaluate: l-x^2l (x - y) + (x^3 + y) If x + 8 = 3 and y = 3_ \l 8 Is the answer -202? I did it in the calculator but forgot how to work it out
  63. Algebra 2

    More About Complex Numbers Multiply (4+3i)(1-i) Please show work i need help
  64. Algebra 2

    More About Complex Numbers Multiply (4+3i)(1-i) Please show work i need help
  65. Algebra 2

    Solving Quadratic System x^2+4y^2=16 x^2+y^2=4 Please SHOW WORK I'm having trouble solve this...
  66. chemistry

    How many grams of CO2 are produced when 11.47 moles hexane combust? Show work please
  67. algebra

    divide the fractions x+3 6 _______ divided by ____ xcubed x-3 show work please
  68. Math(HELP!!!) PLEASE

    How would you convert 1.5 square iles to dm^2?? I don't know how to show my work for this particular one.
  69. algebra

    Please correct my work. Using long division,simplify (8b^3-6),devided by (2b-1) My solution is: 4b^2+2b+1 ---------------- 8b^3 -6 8b^3-4b^2 ----------------- 4b^2-6 4b^2-2b ------------------ 2b-6 2b-1 ------------------- -5
  70. Operations

    Could someone what do they mean by this question please.How does their work force reflect their global strategy?
  71. college mathematics

    e. Find the volume of a sphere with a radius of 8 meters. please show work.
  72. Math

    Find the values of the variables. [-12 -w^2] = [2k -81 2f 3 -14 3 Please help me. I don't know how to do this at all, and can you show your work so I can understand better. Thanks
  73. math

    Simplify the rational expressions. State any excluded values. Show your work. 8.3x-6/x-2 9.x-2/x^2 +3x-10 please.
  74. algebra 2

    write a polynomial function in standard form with zeros : -1,-1,6 SHOW WORK PLEASE
  75. physics

    A shopper pushes a grocery cart 20.0 m at constant speed on level ground, against a 35.0 N frictional force. He pushes in a direction 25.0º below the horizontal. (a) What is the work done on the cart by friction? (b) What is the work done on the cart by the gravitational ...
  76. GRAMMAR

    PLEASE CORRECT THE ANSWERS ACCORDING TO THE QUESTION BELOW. insert the prepositions in the following sentences : 1) he was christened Stephen UNDER his father,buthe answer IN the name of George. 2)He has not been heard since for years no one knows what has become to him. 3)do ...
  77. Calculus - Hydrostatic Pressure

    Please check my work: Find the hydrostatic pressure on one end of a water trough full of water, the end of which is a trapezoid with given dimensions: top of trapezoid = 20 feet, sides of trapezoid both = 8 feet, bottom of trapezoid = 12 feet. Depth of water = 8 feet Density ...
  78. English expression

    What sport do you like best? I like rope jumping best. What sports do you like best? I like cricket and dodgeball best. Which sport do you like better, billiards or squash? I like billiards better. Do you play rugby sometimes? Yes, I do. Do you play sports on weekends? Yes, I ...
  79. algebra

    simplify. 3 - 2(4 - 7) ÷ 9 i don't know what to do after i subtract 4 and 7 which is -3 then multiply 2 which is -6 then i don't know what to do afterwards, i know pemdas so -6 divided by 9 cannot be so please help on that. the integers from -3 to +3 can be used in the blanks...
  80. Introduction to Graphic Design

    Hello! Thanks for checking my question out! ____ 6. If you come to a stumbling block and can’t think of any more ideas, what could you do? Select all that apply. (2 points) a) Expand on your favorite idea so far even if you don’t think it will work. Sometimes you'll find a...
  81. computers (Check)

    Will someone please check my C++ for me? 1. What does the Load ( ) method do? Gets data from a file and puts it into a DataSet object. <----- Gives a value to an attribute of an XmlElement object. Deletes all the data in a DataSet object. Tells a form to appear. 2. Scenario...
  82. Math

    Consider ∠C such that sin C = 7/25 a) What are the possible quadrants in which ∠C may lie? b) If you know that cos C is negative, how does your answer to part a) change? c) Sketch a diagram to represent ∠C in standard position, given that the condition in part b) is true...
  83. Ed Tech

    What types of issues can you likely resolve by knowing how to access and use the Control Panel? Choose all that apply. network issues*** screen resolution and volume issues**** frozen application issues virus issues What can help prevent issues related to downloading content ...
  84. Math

    I need someone to show me how to work these two problems out. 30. find the hypotenuse of a right triangle whose sides measure 9 and 12: i came up with the answer 15 but i honestly forgot how i got this answer please let me know what i did wrong and work the problem for me. 33...
  85. Spanish-SraJMcGin-please check

    Posted by Megan on Wednesday, October 13, 2010 at 5:08pm. I just reposted this from the earlier post- I have two questions about translation. If asked this question, how do I answer it. Cual es tu numero de telefono? I know it is asking my phone number which is 447-7161 but I ...
  86. math double check please

    GCF and LCM of 252, 420, and 180 252: 2,2,3,3,7 420: 2,2,3,5,7 180: 2,2,3,3,5 GCF is 12 and I think LCM is 1260? Can you please tell me if I'm right?
  87. Social studies answer check please

    Why did Thomas Paine write the Pamphlet, Common Sense? 1: to support conquering the Native Americans ******* 2: to argue that more land should go to france and spain 3: to show that loyalty to the monarchy was wrong 4: to pledge his loyalty What was most dangerous about ...
  88. english revision, editing

    Hi I have to do the following corrections. I was wondering if I corrected them correctly.(my work is the bottom) this is what I need to correct : Another kind of story people passed on are fairytales. <-Your verb needs to agree. Fairytales always have fairies in them they ...
  89. 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 of 0 to 2 for: x^2 ...
  90. English

    Hi,I am giving in this work and so is my sister Zakiyya.Please check both of ours. --------------------- Q)You are the editor of a local weekly newspaper. A national charity is planning to open a residential home for troubled teenagers in your area.Some local people have ...
  91. English

    Identify the sentence that is punctuated correctly. A. Here is our check, Mr. Vons, for $7.35. B. Here is our check Mr. Vons, for $7.35. C. Here is our check, Mr. Vons for $7.35. D. Here is our check Mr. Vons for $7.35. D
  92. English

    Identify the sentence that is punctuated correctly. A. Here is our check, Mr. Vons, for $7.35. B. Here is our check Mr. Vons, for $7.35. C. Here is our check, Mr. Vons for $7.35. D. Here is our check Mr. Vons for $7.35. c
  93. ap chemistry :(

    consider the reaction C6H14 + 9.5O2 yields 6CO2 + &H2) at constant pressure. which response is true? 1. work may be done on or by the system as the reaction occurs, depending upon the temperature. 2. work is done on the system as the reaction occurs. 3. no work is done as the ...
  94. Algebra

    A taco stand sells tacos for $3.35 easch. The stands expenses for the day are $210. Define our variables and write an inequality to represent the amount of tacos they need to sell per day to make a profit, and then solve the inequality. Provide your conclusion as a complete ...
  95. Grammar and Composition

    please check these: 1. adamant _e_ 2. pathetic _g_ 3. tangible _j_ 4. auspicious _i?_ 5. altruistic _a_ 6. flippant _c_ 7. incorrigible _h_ 8. indolent _d_ 9. precarious _b_ 10. implicit _i?_ a. unselfish b. uncertain c. impudent d. lazy e. unyielding f. unquestioning g. ...
  96. calculus

    pleaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaasw help can you pleaaaaase help me find the area between y=cos(4x) and y=1-cos(4x) 0<=x<=pi/4 i tried to solve it, and i got like : 2*sqrt3+ pi/12 is it right? if not please tell me how can i solve it...i'm really confused i found ...
  97. Math

    Can you check my work and tell me if I did anything wrong? 1. With the functions: f(x) = x^2 + 3x and g(x) = -3 + x what is f(x) + g(x)? Answer: x^2 + 4x - 3 2. With the functions: f(x) = x + 4 and g(x) = x -3 what is (f*g)(x)? Answer: x^2 + x - 12 3. With the functions: f(x...
  98. Leading coefficient test

    Please check my work. thanxs! Use the Leading Coefficient Test to determine the end behavior of the polynomial function. Then use this end behavior to match the function with its graph. f(x) = 2x^2 - 2x - 2 -I got that is rises to the left and rises to the right. f(x) = -3x^2...
  99. Math

    Hi, I need someone to check my work and I have a question. Polygon: pentagon Number of sides: 5 Smallest number of interior triangles: 3 Now, here's my question: Sum of degrees of the interior angles: ___*180=_____ degrees
  100. chem/some1 check my work plz.

    air bags actived when a severe impact causes a steel ball to compress a spring and electrically ignite a detonator cap. this causes NaN3 to decompose explosively according to the following reaction: 2NaN3(s)=2Na(s)+3N2(g) what mas of NaN3 must be reacted to inflate an air bag ...
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