Trig check my work please?

42,371 results, page 80
  1. Engineering

    You are given a hydraulic jack which you'd like to keep in your car in case you have a flat. Your vehicle weighs 4500lbs, and you know the jack will have to lift 1500 lbs when you put it under the axle. The hand end cylinder of the jack is 1/2inch in
  2. Early Child Ed. -- Need help!

    Would you please check these questions and my answers? Let me know the ones I have wrong and need to recheck. 1. Many self-care tasks can be taught through: A. adaptive behaviors B. self-determination C. fencing D. chaining 2. The concept of
  3. Inverse Functions & Trig. Equations

    7. Evaluate sin[sin^-1(-1/2)]. a. 1/2 b. ð /6 c. -1/2 d. - ð /6 8. Evaluate cos[tan^-1(5/12)]. a. 12/13 b. 12/5 c. 5/12 d. 5/13 9. Evaluate cos[sin^-1(-3/5)]. a. -4/5 b. 5/4 c. 4/5 d. -3/4
  4. AP physics 2

    You are moving into an apartment and take the elevator to the 6th floor. Suppose your weight is 790 N and that of your belongings is 1080 N. (a) Determine the work done by the elevator in lifting you and your belongings up to the 6th floor (15.2 m) at a
  5. Physics

    A 275 kg piano slides 4.0 m down a 30° incline and is kept from accelerating by a man who is pushing back on it parallel to the incline. The effective coefficient of kinetic friction is 0.40. a) Calculate the magnitude of the force exerted by the man. b)
  6. Physic

    You are moving into an apartment and take the elevator to the 6th floor. Suppose your weight is 640 N and that of your belongings is 940 N. (a) Determine the work done by the elevator in lifting you and your belongings up to the 6th floor (15.2 m) at a
  7. Physics

    A 275 kg piano slides 4.0 m down a 30° incline and is kept from accelerating by a man who is pushing back on it parallel to the incline. The effective coefficient of kinetic friction is 0.40. a) Calculate the magnitude of the force exerted by the man. b)
  8. physics

    You are moving into an apartment and take the elevator to the 6th floor. Suppose your weight is 750 N and that of your belongings is 990 N. (a) Determine the work done by the elevator in lifting you and your belongings up to the 6th floor (15.2 m) at a
  9. maths

    300 men were engaged to complete a job in a certain number of days. but due to another assignment fifteen men dropped the second day, fifteen more men dropped the third days and so on .if takes fifteen more days to finish the work now.find the number of
  10. math

    If a projectile is launched from a platform 30 feet high with an initial velocity of 128 feet per second, then the height of the projectile at t seconds is given by s(t) = –16t2 + 128t + 30 feet. (a) At what time does the projectile attain its maximum
  11. history

    Can you check this?: I have to # the order in which they occured. 10-The Lewis and Clark expedition leaves St. Louis 8-Thomas Jefferson authorizes Robert Livingston to offer $10 million for New Orleans and West Florida. 5-Meriwether Lewis and William Clark
  12. physics

    Two industrial spies slide a floor safe 8.5m along a straight horizontal line toward their truck. The push (F1) of the Spy 001 is 320 N, directed at an angle of 30 degrees downward from the horizontal; the pull (F2) of Spy 002 is 250 N, directed at 40
  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. Diversity

    1. Books such as The Three Little Pigs, Green Eggs & Ham or Good night moon promote children's cognitive & linguistic skills through the ___ strategy. a. reprtition b.eventcasts c. referential language d. recasting I chose "c"referential language can sme
  15. language arts (check answer)

    please check this... which of the following shows a correctly punctuated compound sentence? A.As the miners,slept soundly,the thieves made off with all their supplies and gold. B.As the miners slept,soundly the thieves made off with all their supplies and
  16. Help Please! (URGENT)

    My previous post didn't post properly so heres a new one. Can someone please check my work? James:But we’re so good together, Susan:We were good together. I’m sorry, but I think we should break up. James:(Silence) Susan:James? James:You think we should
  17. Trig

    The first 40 rows of seating in a certain section of a stadium have 25 seats, 28 seats, 31 seats, and so on. The 41st through the 75th rows each contain 125 seats. Find the total number of seats in this stadium section.
  18. Statistics (44)

    The travel-to-work time for residents of the 15 largest cities in the United States is reported in the 2003 Information Please Almanac. Suppose that a preliminary simple random sample of residents of San Francisco is used to develop a planning value of
  19. Applied calculas

    3. a) Write out the limit definition for the derivative of y = xx. Attempt to solve it. b) Write out the limit definition for the derivative of the inverse trig function from question 2. Attempt to solve it. c) Discuss the value of implicit
  20. trig

    Find all solutions to the following triangle. (Round your answers for angles A, C, A', and C' to the nearest minute. Round your answers for sides a and a' to two decimal places. If either triangle is not possible, enter NONE in each corresponding answer
  21. Trig

    This problem is stumping me, can anyone help me? The Earth rotates every 24 hours (actually 23 hours, 56 minutes and 4 seconds) and has a diameter of 7926 miles. If you're standing on the equator, how fast are you traveling (how fast is the Earth
  22. applied calculus

    3. a) Write out the limit definition for the derivative of y = xx. Attempt to solve it. b) Write out the limit definition for the derivative of the inverse trig function from question 2. Attempt to solve it. c) Discuss the value of implicit
  23. Trig

    The height of a rider on a Ferris wheel is given by h(t)=12-10c0s(2pi)(t) meters, where t gives time, in minutes of the ride. a. Find the amplitude, midline, and period of the function h. b. During the first two minutes of the ride, find the times when the
  24. trig

    Find all solutions to the following triangle. (Round your answers for angles A, B, A', and B' to the nearest minute. Round your answers for sides a and a' to the nearest whole number. If either triangle is not possible, enter NONE in each corresponding
  25. maths

    A and B together can finish a piece of work in 12 days if a alone can finish the same work in 20 days in how many days b alone can do
  26. math(check answers)

    please check my math ANSWERS 1.which pair of ratio form a proportion? choose all that apply. A. 1/6, 4/20 B. 7/9, 28/36(I PICK THIS) C. 14/18, 21/27 D. 30/80, 8/18 2.which pair of ratios does not form a proportion? A. 3/5, 24/40 B. 30/10, 15/3(I PICK THIS)
  27. Economics

    Which one of the following statements is correct under the theory of supply-side economics? A. High marginal tax rates severely discourage work, saving, and investment. B. Transfer payments increase incentives to work. C. Increases in social security taxes
  28. Math Word Problems

    Hi, I am having some trouble with some problems, can you please help. thanxs!!! 1. A car rental agency charges $250 per week plus $0.25 per mile to rent a car. How many miles can you travel in one week for $300? -Would the equation look like: 300= 250x +
  29. Math - Statistics

    Suppose that the mean number of customers who arrive at the check-out counters each minute is 4. Create a Poisson Distribution with u (lamda) = 4 for x = 0 to 20. Compare your results to the histogram. 20 random numbers are generated with a Poisson
  30. Math: Calculus

    Can someone help me out here with these two problem? I have know idea where to start. 1)The equation: 10(x-1)(x-2)(x-3)=1, has three real solutions a<b<c where a=____, b=___ , and c=___. Enter your answers with at least six correct digits beyond the
  31. math , correction

    theres a diagram which in the diagram the points are: (-3,1),(0,3),(2,0), (-1,-2). And the directions say: use the concept of slope to determine if the given figure is a parallelogram or a rectangle: so this is what i did please can someone check it to see
  32. MATH HELP

    I posted this yesterday and no one bothered to check it, therefore Im posting it again, please check it this time. The south edmonton pet shop has several parrots and dogs for sale. There are a total of 24 heads and 82 legs in the display cages. A) Write a
  33. Trig - Law of sines and cosines

    ABC is an equilateral triangle with side length 4. M is the midpoint of BC, and AM is a diagonal of square ALMN. Find the area of the region common to both ABC and ALMN. I drew the diagram but I don't know how to find the answer? I think it has something
  34. trig

    An airplane has an airspeed of 450 kilometers per hour bearing Upper N45E. The wind velocity is 60 kilometers per hour in the direction Upper N30W. Find the resultant vector representing the path of the plane relative to the ground. What is the ground
  35. trig

    A ship is headed due north at a constant 20 miles per hour. Because of the ocean current, the true course of the ship is 15°. If the currents are a constant 18 miles per hour, in what direction are the currents running? (Enter your answers as a
  36. at leasttell me u cant accounting

    Tracy Migre, a certified public accounting, has completed the following transactions. Ms.Migres assests , liabilites, and owner equity account titles and balances are shown in the table below. use the table on the page to show the effect of each
  37. Adverbial Phrase

    Q1. My mother and I did some gardening,and _______ we relaxed on our front porch, admiring our handiwork. a. last b. afterwards c. first Ans: a. last Q2. I bring my pet snake to the vet for a check-up every ______. a. Sundays b. days c. week Ans: c. week
  38. chemistry

    I would also like to see Nathaniels work solved:P I have a similar question If 1.00 mol each of carbon dioxide and hydrogen is initially injected into a 10.0-L reaction chamber at 986 degrees Celsius, what would be the concentrations of each entity at
  39. physics

    An object of mass 10.0 kg is released from the top of an inclined plane which makes an angle of inclination of 30 degrees with the horizontal. The object slides along the inclined plane. The questions refer to the instant when the object has traveled
  40. physics

    A 3.00 10^2 N force is pulling an 80.0 kg refrigerator across a horizontal surface. The force acts at an angle of 18.0° above the surface. The coefficient of kinetic friction is 0.200, and the refrigerator moves a distance of 8.00 m a) Find the work done
  41. Help, Physics

    A 3.00*10^2 N force is pulling an 80.0 kg refrigerator across a horizontal surface. The force acts at an angle of 18.0° above the surface. The coefficient of kinetic friction is 0.200, and the refrigerator moves a distance of 8.00 m. (a) Find the work
  42. technoligy

    1. What column do you put the deposits in when you are balancing your checkbook a=date b=transaction c=debit d=credit 2. when creating a formula for balancing in a checkbook, what do you subtract from the credits? a=debits b=check numbers c=transaction
  43. Math

    Elaine has a customer who needs a box with a volume of 12 cubic inches. The customer want to know what size box is the least expensive to buy. .the price will be based on surface area. the supplier charges 1/2 cent persquare inch. .the dimensions of the
  44. math-inequalities

    I really don't understand this stuff for example: 9b-3b+34<2b-10 and 7a+3=24 letters represent variables so they can be anything really. Once you understand this step then the rest of the problem can start to make sense. Inequalities tell you whether
  45. Physics

    A hockey puck travelling at 26 m/s [E 22* S] rebounds off the board at 21 m/s [E 22* N]. The puck is in contact with the board for 0.0025 seconds. Determine the average acceleration of the puck over the interval. average acceleration= change in
  46. MARKETING

    I Tried looking these up on the dictionary for Jiskha it didn't help please help.. matching PLEASE HELP? 1. labor force. 2. open shop 3. yellow dog contract. 4. flextime. 5. job discriminiation 6.strike. 7. minimum wage. 8. right-to-work law. 9. collective
  47. Us history help please

    Can someone check my work please? 1. In general, what happened to the price of sugar and rum between April and September 1777? The prices went up extremely high and that's what begin of the Boston tea party incident. 2.Why was this happening? Because they
  48. Business comunication

    Which of the following is most likely to persuade the reader ? a.Describe your reader's solution first, explain why it won't work,and then go on to describe your own solution. b.Ignore your opponent's solution and just concentrate on your own. c.Describe
  49. Trig

    If secx = 8 and -pi/2 < x < 0, find the exact value of sin2x Use the identity sin 2x = 2(sinx)(cosx) if secx = 8, then cosx = 1/8 where x is in the fourth quadrant. consider a right angled triangle with x=1, r=8, then y=?? by Pythagoras 1^2 + y^2 =
  50. trig

    A person is standing 90 feet away from the Space Needle. The person looks up at the Space Needle at an angle of elevation of 81 degrees. The distance from the floor to the person's eye level is 5 feet. What must be the height of the Space Needle?
  51. Trig

    A 24-foot ladder is placed against a building. The building is perpendicular to the level ground so that the base of the ladder is 11 feet away from the base of the building. How far up the building, in feet, does the ladder reach? Round to nearest
  52. trig

    A car is on a driveway that is inclined 12 degrees to the horizontal. A force of 470lb is required to keep the car from rolling down the driveway. a) Find the weight of the car b) Find the force the car exerts against the driveway
  53. science

    Can someone please check my other answer from Saturday June 5 @ 10:29 please thank you ?!
  54. 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.
  55. Math Check

    Solve: x^-2 - x^-1= 5/4 I have the answer as (5+/- sqrt29)/2 Is this right?
  56. To: Drwls

    can you please check my previous science post, thanks
  57. Math check

    Solve: 3x^2-11=0 Is the answer" +- sqrt 11/3?
  58. Math

    Divide and Check 4x^4y-8x^6y^2+12x^8y^6 _______________________ 4x^4y
  59. Bobpursley plz help

    Can you please check my answers 3. Tx=2x+1,XW=x+7;TW Tx+XW=TW 2x+1+x+7+TW 3x+1+7=TW Answer: 3x+8+TW 4. WX=X+5,TW=4x+5;TX WX+TW=TX x+5+4x+5=TX 5x+5+5=TX 5x+10=TX
  60. Alg1 / 2

    solve the equation & check your solution
  61. 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
  62. math please

    Solve 3^2x + 3^x - 21 check extraneous roots
  63. math

    How can you use multiplication to check if a quotient is correct?
  64. Algebra

    x-8/x-9-x+1/x+9+x-17/x^2-81 =x^3-81x^2-7x-27/x^2. Can some check this my answer and see if it corre4ct please.
  65. Alg 2 Check Please!!!

    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
  66. English

    Name five of the six points you should check in practicing your speech.
  67. math

    Solve the equation and check your solution 2/5+1/y-5=y-7/5y-25.
  68. Math

    Given the function rule f(x) = x2 - 5x + 1, what is the output of f(-3)? A. 7 B. -5 C. 25 D. 5 I think its 7, can you check please? Thanks!
  69. math

    how do i write $3,337.55 on a check in words on?
  70. Math

    Can you check these? .04 is 1/8% of what number? 32 What percent of 1/8 is 3 1/2? 2800%
  71. TO: Mrs Sue...is my answer below right?

    can u check it plz
  72. algebra

    Of the two fractions 15/21 and 19/17 which is smaller? I think its 19/17 but need someone to double check please.
  73. Math

    3/4(5/x-1/2)-5/3<1/3 3/20x-8-15<1/3 Check this for me where didi I go wrong
  74. Math.

    Can u check these: 56% of 144 = 80.64 81% Of 63. = 51.03 43% of 92. = 39.56 3%. Of 200 = 6 17%. Of 360 = 61.2 22% of 84 = 18.48
  75. math 116

    week 5: self check answers
  76. To: SraJMcGin

    I posted an assignment for you to check at 4:51 today just to let you know.
  77. math rational comparing #'s

    can you check: < > = -2/9 > -4/9 -1/6 > -2/3 -5/12 > - 3/4 -1 < - 1/3 -5/6 = -10/12 -1/8 > - 1/2 -1.2 > -2.1 -0.6 < -0.52 -1.23 < -1.25 -0.53 < -5.333 -3 1/4 = -3.25 -4 2/5 < -4.12 are these right?
  78. Math(Please check)

    (0.50M)(3.50mL) = c2(75.00) c2= 2.3e-2 Is this correct?
  79. Algebra

    Factor (m + 4) (a – 5) + (m + 4) (a + 3) I am pretty sure its this but want to double check! Thanks! (m + 4) (a^2 – 2)
  80. Mathematics

    Find the slope of (2,3) and (-2,1) -2 2 -1/2•• 1/2 Check my answer
  81. Math(Check Please)

    1. Which line is the flattest (or is less steep)? Why? a.
  82. Ms. Sue Help me with my poem

    Please look at my last post, so you can check my answers.
  83. pre-algebra

    Please check -42=4n+17n N=3.09 13+10c-4=-29 C=-3.8
  84. Math

    Solve and check each equation 1a. 12n=36 n=3 1b. n-5=8 n=13
  85. Algebra

    synthetic division find f(-2) f(x)=2x^4+4x^3+2x^2+3x+8 -2 2 4 2 3 8 -4 0 -4 2 2 0 2 -1 10 f(2)=10 check f(x)=2(-2)^4+4(-2)^3+2(-2)^2+3(-2)+8 f(x)=10
  86. Algebra 1 Answer Check

    Factor each trinomial. 1. -2x^2 + 5x + 12 A: -1(2x + 3)(x - 4) 2. 4a^2 + 8a - 5 A: (2a -1)(2a + 5) 3. -4x^2 - 8x + 5 A: -1(2x - 1)(2x + 5) 4. -5x^2 + 7x + 6 A: -1(5x + 3)(x - 2)
  87. Math (check answer)

    find [7] A.1/7 B.-7 C.7 D.0 i pick 7.
  88. pre-algebra

    can someone check if this inequality is solve right 5x + 3 >= 28 -3 -3 5x >= 25 5 5 x <= 5
  89. alg 2 check?

    (4x+y)^2 answer:16x^2+y^2 is this correct?
  90. Mathematics

    Which equation has (2,-1) as a solution. Y=2x - 1•• Y=x + 3 Y=x - 3 Y=-2x+1 Check my answer
  91. math

    can someone check my answer Graph by first solving for y. x + 2y = 8 x-x+2y=8-x 2y=8-x 2y/2=8/2-x y=4-x y=4-x/2 y=4-1/2x
  92. algebra

    factor by grouping if possible and check 5x^3+4x^2-10x-8
  93. Math

    Find the area of the following rectangles. 7/2 mm ×14/5 mm. I can up with 98/10 mm. Please check
  94. Math Can anyone check my answer please

    4z-24/6-z=-z,-4 <<<this is in simplifield form am I right???
  95. Math Can anyone check my answer please

    4z-24/6-z=-z,-4 <<<this is in simplifield form am I right???
  96. Algebra..

    Check These Answers Please? f(x)= x^2+3 ; g(x)=3x-1 1. (f+g) =x^2+3x+2 2. (f+g)(3) = 20 3. (f-g)(x) = x^2+3x-4 4.(fg)(x) = 3x^3+1x^2-9x+3 5. (fg)(x) =5 6. (f/g)(x) =(x^2+3)/(3x-1) Compostitions of functions : 7. (f o g)(x) =3x^2+4 8. (f o g)(x) =10
  97. Math 115

    8/26=m/13 104/26 m=4 Check this problem please
  98. Math

    I still can't understand this one.In class we got 42 but I got 48 and when I check it none of them match up 4/8y-21=3 What is y?
  99. ALGEBRA 1

    Can someone please check on these for me please .Thanks Use the Quadratic Formula to solve 1.
  100. Math 222

    Please check this to see if I am doing it correctly. g^2-6g-55/ g g=0 Because you can not divide by zero