Trig check my work please?

42,204 results, page 74

  1. trig

    Use a sum or difference identity to find the exact value. tan 25deg + tan 5deg / 1-tan 25deg tan 5deg
  2. Trig

    Boston is 200 mi away from NY. It takes me 1 hour less to drive to Boston when I drive 10 mi faster than my normal rate. What is my normal rate?
  3. Physical Science

    Good afternoon. Can someone please check if my answers for these questions are correct? Thanks! 1.Explain in terms of force and distance how using a ramp to load boxes into a truck makes work easier. (Ans-) Less force is applied but the distance is longer. 2.A ball sitting on ...
  4. Physical science

    A simple lever is used to lift a heavy load. When a 58-N force pushes one end of the lever down 1.1 m the load rises 0.14 m. How much work is done by the 58-N force? What is the gain in potential energy of the load? How does the work done compare to the increased potential ...
  5. math

    A hot air balloon was at a height of 60 feet above the ground when it began to ascend. The balloon climbed at a rate of 15 feet per minute. a) make a table that shows the height of the air balloon after climbing for 1,2,3,&4 minutes. minutes:1 2 3 4 ------------------- height:...
  6. English Improving writing

    Please take a look at this for me I must 8-15 sentences per each paragraph any ideas how I can do that thanks for the help Rough Draft There are on-going problems that need to be addressed at the DMD Company. First there is uneven allocation of tasks. While Bonnie and Molly ...
  7. Algebra (Please Check My Answers)

    CCA Unit 4 Lesson 11 3. If a number is not a rational number, then it is ______. ~ an integer ~ and irrational number*** ~ a whole number ~ a radical 4. James attached a diagonal brace across a rectangular frame that measures 6 feet by 8 feet. What is the length of the ...
  8. Calculus

    An inverted conical tank is 3m tall and 1m in diameter at its widest point. The water is being pumped out of a spout 2m above the top of the tank. Recall that the density of water is  = 1000kg/m^3 (a) Find the work needed to empty the tank if it is full. Include units. (b) ...
  9. Calculus

    An inverted conical tank is 3m tall and 1m in diameter at its widest point. The water is being pumped out of a spout 2m above the top of the tank. Recall that the density of water is  = 1000kg/m^3 (a) Find the work needed to empty the tank if it is full. Include units. (b) ...
  10. Algebra

    An oil spill from a tanker in pristine Prince Williams Sound in Alaska begins in a circular shape only 2 ft across. what happens to the area if the diameter is doubling each hour. How large will the spill be in 24 h? diameter= 2^(t+1) t is time in hours. Area= PI*radius^2= PI...
  11. Spanish

    I am having troubles translating these sentences. 1.) Were the princesses singing? 2.) Did the queen used to cry? 3.) Do they like to sing? 4.) Doesn't the duchess like to sing? 5.) Which duke likes to sing? Thank you for using the Jiskha Homework Help Forum, BUT, you are ...
  12. Math, Trig

    A soccer player kicks a ball from the ground to a maximum height of 12 m. The high point in the trajectory of the ball occurs at a distance of 18 m from the kicker. On the downward path, another player heads the ball at a height of 2.2 m from the ground. Write a quadratic ...
  13. science

    the oxide formed when selenium burns in air dissolves in water to give a solution of selenious acid,H2SeO3.the solution conducts electricity and turns blue litmus paper identify the positively charged ion present in an aqueous solution of the acid and then using the answer ...
  14. trig

    A river is 2000 ft wide and flowing at 6 mph from north to south. A woman in a canoe starts on the eastern shore and heads west at her normal paddling speed of 2 mph. In what direction (measured clockwise from north) must she aim her canoe? How long will it take her to go ...
  15. Trig application

    A man is holding a gun 4 feet above the ground and fires into an open field. The bullet has an initial velocity of 300 feet per second and an initial angle of 30°. Find the range (the horizontal distance traveled before hitting the ground ) and the bullet's max height. Please...
  16. math - marginal analyis

    A factory's output is Q=600K^1/2L^1/3 units, (read 600 x K to the 1/2 power x L to the 1/3 power). K denotes capital investment and L denotes the size of the labor force. Estimate the percentage increase in output that will result in a 2% increase in the size of the labor ...
  17. physics

    another question: the 20 kg block is at the top of a 10 m long inclined plane. The block starts from rest and slides without friction down the length of the incline. The block is 5 m high. 1) Determine the gravitational potential energy of the block at the top of the incline. ...
  18. math***check answerss****

    please check answers... 2.yesterday ,a parking lot had 10 cars parked in it.of the cars parked in the parking lot l,40% were silver,3 were red,and the rest were blue.how many of the cars were blue? A.2 cars B. 5 cars C. 3 cars (I PICK THIS) D. 8 cars 3.everyone in andy's class...
  19. trig

    A plane has an airspeed of 190 miles per hour and a heading of 24.0°. The ground speed of the plane is 214 miles per hour, and its true course is in the direction of 40.0°. Find the speed and direction of the air currents, assuming they are constants. (Round your answers to ...
  20. LA PLS HELP!!!!! (check my work)

    1. What causes Brer Lion to be tied to a tree? (1 point) >>>his fear<<< his strength his obedience to Brer Rabbit 2. Which of the following is a reasonable prediction about what will happen after this story is over? (1 point) Brer Lion and Brer Rabbit will ...
  21. English

    Thank you very much for helping me. Here are some more sentences on the same theme (a continuation) I need you to check. Thank you. 1) In Shakespeare’s day the second course was the main part of the meal. 2) Waking life is imagined (was imagined?) as the first course, which ...
  22. Physics

    A.) How much work must be done in order to compress a spring with an elastic constant of 400 lb / in and 1.75 inches? *Note: 1.75" is the compression & 400#/in is k the constant. B.)If 50 ft lbs of work is done on the same spring (in part a) in order to compress it, by how ...
  23. English

    Three examples of how virtue may be used in everyday life? Would: My friend was very virtue today, be a good example? Are there other examples I could put? Four words that virtue can replace in everyday life? Would Happy, Excited work? what are two other words that could work?
  24. Physics

    A.) How much work must be done in order to compress a spring with an elastic constant of 400 lb / in and 1.75 inches? *Note: 1.75" is the compression & 400#/in is the k constant. B.) If 50 ft lbs of work is done on the same spring (in part a) in order to compress it, by how ...
  25. CHemistry....Please double check DrBobb

    What mass of ethylene glycol C2H6O2, the main component of antifreeze, must be added to 10.0 L water to produce a solution for use in a car's radiator that freezes at -23C? Assume density for water is exactly 1g/mL. First we find out the freezing point: =(-23.0)-(0.0_ =-23.0 ...
  26. Math

    Larry mows the same-sized lawns in his neighborhood each weekend during the summer. Part A Each time Larry mows a lawn he uses 1/6 of a gallon of gasoline. If he has 2/3 of a gallon of gasoline, how many lawns can he mow before he needs to buy more gasoline? Show your work. ...
  27. trig

    A bird at the top of a tree looks down at a field mouse with an angle of depression of 65 degrees. If the field mouse is 30 meters from the base of the tree, find the distance from which the field mouse to the bird's eyes. Round the answer to the nearest tenth.
  28. trig

    A plane is is flying 240 mph heading N60°E. The wind is blowing S30°E at 30 mph. What is ground speed? What is the smallest angle in the triangle? What is the biggest angle in the triangle? What is the remaining angle in the triangle? What is the bearing of the plane?
  29. physics

    A 25.0 kg block is pulled 4.5 meters up a 20° rough incline by an applied force Fa = 200 N, directed up the ramp. The block starts from rest and has a final speed of 1.5 m/s. Find the following: a) The total work done on the block, Wtot =___ J b) The work done on the block by...
  30. trig

    A guy wire runs from the ground to a cell tower. The wire is attached to the cell tower 150 feet above the ground. The angle formed between the wire and the ground is 40° (see figure). (Round your answers to one decimal place.)
  31. math trig

    A TOWER AND A MONUMENT STAND ON A LEVEL PLANE.THE ANGLES OF DEPRESSION OF THE TOP AND BOTTOM OF THE MONUMENT VIEWED FROM THE TOP OF THE TOWER ARE 13DEGREE AND 31 DEGREE,RESPECTIVELY;THE HEIGHT OF THE TOWER IS 145 FT. FIND THE HEIGHT OF THE MONUMENT.
  32. Art

    Which of these is the best definition of freedom of expression? A. expression that doesn't cost anything to have or share B. uncensored speech, art, or other means of communication. C. wild, uncontrolled expression of ideas D. information and ideas that are changeable and ...
  33. Math gr 12

    Help! My friend let me borrow their notes and I don't know how they got these answers because they didn't show their work. Could someone please help me? *The answers are correct btw. David is flying from Detroit to Las Vegas. The airfare is $476. He can afford monthly payments...
  34. Math/Physics

    crain carries concrete = 610kg distance carried vertically = 91m time carried = 90 seconds What is the kilo watt? I'm not sure which formulas to use... anyone know the answers? Power = (Work done)/(time required) The work done is M g H = 610x9.8x91 = 544,000 J. (H is the ...
  35. Calculus

    An inverted conical tank is 3m tall and 1m in diameter at its widest point. The water is being pumped out of a spout 2m above the top of the tank. Recall that the density of water is ρ = 1000kg/m^3 (a) Find the work needed to empty the tank if it is full. Include units. (...
  36. statistics

    The population standard deviation (σ) for a standardized achievement test that is normally distributed is 8.    a.) Calculate the standard error of the mean if you draw a random sample of 50 test scores.  Show your work for full credit .  .  .  b.) Your sample mean...
  37. math

    This was on my test and have a few more question that is from my test. 18.The Sum of five unequal natural numbers is 90. The second largest of these five numbers can be at the most? A.19 B.41(41 is the right answer) C.44 D.43 E.42 please show work. 22.In what month does the ...
  38. English

    I did the corrections myself. Can you please check them? I just wanted to know if it is better to say "at Medford Square or in Medford Square, "to leave Turin for Rome", "to leave from Turin and go to Rome", "on" OR "during" our last night in Rome?". I included the sentences ...
  39. physics helppp!

    The coeffcient of friction between the 7.9 kg mass and the table is 0.55, and the coeffcient of friction between the 5 kg mass and the table is 0.38. Consider the motion of the 37 kg mass which descends by the amount of y = 0.45m after releasing the system from rest. The ...
  40. trig

    I don't understand this. can you please tell how you got each answer? describe how the graph of each function is related to a basic trigonometric graph. 1. y= 1/2cos x 2. y= 2cos x+1 3. y= sin x-4 4. y= sin(x-4) 5. y= sin(3x) 6. y= cos(1/2x) 7. y= -cos x 8. y= -cos x+2 9. y= -...
  41. trig

    An airplane flies with a speed of 425 mph and a heading of 63°. If the heading of the wind is 24°and the speed of the wind is 31 mph, what is the heading of the plane and the ground speed? I've done a couple questions like this but still a little fuzzy on setting it up, any ...
  42. geom/trig

    Using scissors to cut a rectangular piece of paper from one corner ro the opposite corner. The cut is 36 cm long and makes a 34 degree angle to the uncut edge. How many cm long is the paper (from the corner where he started the cut?
  43. Trig

    A telephone pole that is 14ft y’all has fallen against a house. If the top of the telephone pole touches the house 8ft. Above the ground, what is the angle that the telephone pole makes with the ground? Stuck on this question on my quiz not sure how I should set this up or ...
  44. precalc h

    sin(theta)/1-cos(theta) + 1-cos(theta)/sin(theta) = 2csc(theta) That question makes absolutely no sense.. could someone help me? or lead me in the direction to figuring it out? and.. (Beside the trig functions is theta) 1+1/cos = tan^2/sec-1
  45. trig

    Q1: Prove cos^2t+4cost+4/cost+2=2sect+1/sect Q2: A ship leaves port with a bearing of S 40 W. After traveling 7 miles, the ship turns 90 degrees on a bearing of N 50 W for 11 miles. At that time, what is the bearing of the ship from port?
  46. English

    Can you please help me check these sentences? Some of them don't make sense at all.I tried to check some of them though. 1) Brutus has a strong sense of republican liberty 2) Brutus fears what Caesar could (would/may) become if he were crowned. 3) He is not sure about this: he...
  47. spanish need help

    I did the work and would be gratful if someone could check it. complete sentences with imperfect or preterite forms of verb in parenthses My word form is in "Quotes" - The sentences were given to us in the workbook 1. (escribir) Claudia "escribio" un mensaje por Internet ...
  48. Study Habits & Organization

    How should I study? I do study with notcards, but I want to learn some more study habits. And what should I do to become more organized in my life??? I want to do this to try and do better in school! Thanks! Here is the best study program I know of. It is not overnight, and ...
  49. Physics

    A uniform electric field of magnitude 410 N/C pointing in the positive x-direction acts on an electron, which is initially at rest. The electron has moved 3.00 cm. (a) What is the work done by the field on the electron?(b) What is the change in potential energy associated with...
  50. CHEMISTRY

    could you please check my work? thanks. For the reaction between reactants A and B below, if 4.925 moles of A is placed into a flask with excess B it is found that the amount of A remaining after 6.85 seconds is 2.737 moles. 2A (g) + B (g)-----> 3 C (g) a. find the rate of ...
  51. Chemistry

    could you please check my work? thanks. For the reaction between reactants A and B below, if 4.925 moles of A is placed into a flask with excess B it is found that the amount of A remaining after 6.85 seconds is 2.737 moles. 2A (g) + B (g)-----> 3 C (g) a. find the rate of ...
  52. Mechanics

    The force Fa=(5i+6j+1k) is applied on a material point while it is shifted by 50m in Oxy plane along a direction 20o CCW versus Ox axis. Find the work done by force on the particle during this shift. The answer should be 337.5J What I did: I found the magnitude of the force: 5...
  53. career

    This is my module exam and I need someone to check it please only people who really know if the answers are right thank you. 1. Which federal agency is responsible for enforcing employment discrimination laws? A. Veteran's Administration (VA). B. The Equal Employment ...
  54. math

    Here's my question: Fireworks are to be launched from a platform at the base of a hill. Using the top of the platform as the origin and taking some measurements, it was determined that the cross-section of the slope of one side of the hill is y=4x-12 If the path of the ...
  55. Precalc/Trig

    2 roads intersect at an angle of 60 degrees. A friend's mail box is 434 feet from that intersection and your mailbox is on the other road and is 525 feet from the intersection. How far is it from your mailbox to your friend's mailbox? I got 1016.66 feet, but that is wrong. ...
  56. trig

    list the period, amplitude, interval, and phase shift of: g(t)=5/2sint-pi i know the amplitude is 5/2 but everything else im not getting. the regular formula for these is y=Asin(Bx+C)+D A is the amplitude B is the period which you use (2pi/b) to solve. C is just a constant i ...
  57. TRIG Help help help test tommarow

    A TV tower stands on top of the Empire State building. From a point (on the ground) 1150 feet from the base of the building, the angle of elevation to the top of the TV tower is 52 degrees. If the building is 1250 feet tall, what is the length of the TV tower?
  58. Trig

    To help a young tree grow straight, a gardener attaches three guy wires to it and the ground. She places the wires two feet below the top of the tree. If the wires are ten feet long and each makes an angle of 58 degrees with the ground. Find the height of the tree.
  59. Trig - Ambiguous Cases

    Triangle HAV has <H = 124, a=8.5mm, and h=7.2mm How many solutions are there? What I attempted: SinH/h=SinA/a Sin124/7.2=SinA/8.5 SinA=8.5(Sin124/7.2) <A = 78.2 RULE => All interior angles must add up to 180 degrees therefore this triangle has 0 solutions. The ...
  60. PreCalculus (PLEASE HELP, IM BEGGING!)

    Can anyone please explain these problems to me?? I really need help!I need to simplify these trig expressions but I don't understand how my teacher is doing it at all and I have a quiz on this tomorrow! I've really been trying but I just don't get it! 1)Mulitply: [cosx/(1-cosx...
  61. Trig

    An airplane is flying on a compass heading (bearing) of 340 degrees at 325 mph. A wind is blowing with the bearing 320 degrees at 40 mph. Find the component form of the velocity of the airplane. then find the actual ground speed and direction of the plane
  62. Trig

    Two pilots take off from the same airport. Mason heads due south. Nancy heads 23 west of south. After 400 land miles, how far is Nancy from Mason’s route? I think 156.29, but I'm not sure because the question comes in a lesson on sum and difference identities, and ...
  63. trig

    A Ferris wheel has a radius of 15 meters and takes 20 seconds to complete one full revolution. The seat you are riding in, takes 7 seconds to reach the top which is 35 meters above the ground. Write a sine or cosine equation for the height of your seat above the ground as a ...
  64. Precalc Trig

    here's the question: solve for cos(2theta)=1 if you graph r= cos(2Theta) then graph r=1 you find that there are four places where the graphs intersect. however, when solved algebraically, there are two solutions which can be represented in an infinitely many format as: Theta...
  65. Chemistry

    Can you check if this is correct please? a) How many moles of sodium hydroxide are there in 19.00 cm3 of 0.100 mol dm3? My answer: 0.0019 mol b) How many moles of hydrochloric acid are, there in 25.00 cm3 of the acid solution? My answer: 0.0019 mol c) How many moles of ...
  66. math

    Ashley can ride her bike to work in 2/3 of an hour. When she drives to work it takes 1/3 of an hour. If she drives 12 miles per hour faster than she rides her bike, how fast does she ride her bike?
  67. math

    Samantha can ride her bike to work in 2/3 of an hour. When she drives to work it takes 1/3 of an hour. If she drives 12 miles per hour faster than she rides her bike, how fast does she ride her bike?
  68. Math

    Ashley can ride her bike to work in 2/3 of an hour. When she drives to work it takes 1/3 of an hour. If she drives 12 miles per hour faster than she rides her bike, how fast does she ride her bike?
  69. geometry

    How much more pizza is in a 12-in. diameter pizza than an 8-in. diameter pizza? Round your answer to the nearest hundredth. Be sure to show all work and label your answer. TWO points for the work...TWO points for the corrrect answer
  70. CE: re ART

    Finally heard from my son; he wanted to check the answer to your ART question "The first american painting to reach the million mark was "Three Flags" by Jasper Johns. It was purchased by the Whitney under the director Tom Armstrong (worked with him). It was priced at exactly ...
  71. Chem Check

    Can someone verify my answers please? convert the folowing into a pressure reading expressed in torr A. 1.25atm * 760torr/1.0atm = 950. torr B. 2.48 x 10^-3 atm * 760torr/1.0atm = 1.88 torr C. 4.75 x 10^4 atm* 760torr/1.0atm = 3.61 x 10^7 torr D. 7.60 x 10^6atm * 760torr/1....
  72. physics

    At the end of the semester, you are loading your gear into a van to go home. In loading the van, you can either lift a 45.0-kg crate straight up(method 1) or push it up a 3.00-m-long ramp that is inclined at an angle above the horizontal (method 2).In both methods, the crate ...
  73. Science 8th grade

    please check my answer thanks I need to write at least one paragraph regaurding this Urinalysis is a very commo diagnostic test. Describe and name the poddible abnormal results related to the test.. indicate the disorders tha these abnormal test results may sugguest. My answer...
  74. Art

    1. Which textile technique do quilters use to craft blankets? A. weaving B. knitting ** C. stitchery ** D. cross-stitching I think B or C 2. Native American weavers often depicted abstract patterns that represented which of the following? A. friendship B. discovery ** C. power...
  75. AP CHEM-URGENT PLEASE

    could you please check my work? thanks. For the reaction between reactants A and B below, if 4.925 moles of A is placed into a flask with excess B it is found that the amount of A remaining after 6.85 seconds is 2.737 moles. 2A (g) + B (g)-----> 3 C (g) a. find the rate of ...
  76. pre-calc

    Can someone check my work please? Convert each polar equation to a rectangular equation. Then determine the graph's slope and y-intercept. ( I'm going to type 'x' instead of theta ) r sin(x- pi/4)=2 r(sin(x- pi/4))=2 r(sinx*cos pi/4 - sin pi/4*cosx)=2 r(sqrt2/2*sin x - sqrt2/2...
  77. Trig

    1. Given Sin(A) = ⅗ and Cos(B) = 8/17 in Quadrant I, find Sin(A+B). a) 24/80 [b)] 84/85 c) 60/80 d) 60/85 Find Cos(A+B). a) 32/80 b) -45/85 c) -13/80 [d)] -13/85 Find Tan(A+B) a) 0.8 [b)] -1.72 c) -4.21 d) -6.46 I keep getting an 1.61 answer but that isn't an option? ...
  78. trig

    Given that sin^2ceta/1-cos ceta -sin^2ceta/1+cosceta=1 where 0degress is less than or equal to ceta and less than or equal to 360 degress. find the value of ceta
  79. Trig

    The angle of depression from the top of the building to a point on the ground is 29degrees30', the point of the ground is 36 meters from the top of the building. Find the height of the building
  80. trig, math

    A stairway must be built to a deck that is 20 feet above ground level. To the nearest half foot, how far from the base of the deck, on ground level, should the beginning of the stairway be placed so that the stairway forms a 60° angle from the ground?
  81. Trig

    A carousel with a 50-foot diameter makes 4 revolutions per minute. a) Find the angular speed of the carousel in radians per minute. b) Find the linear speed in feet per minute of the platform rim of the carousel.
  82. physics

    An asteroid is moving along a straight line. A force acts along the displacement of the asteroid and slows it down. The asteroid has a mass of 4.9 × 104 kg, and the force causes its speed to change from 7600 to 5400 m/s. (a) What is the work done by the force? (b) If the ...
  83. Trig.

    A preseason game Tennessee Titans punter A.J. Trapasso hit the giant HD TV screen suspended above the field at the new Cowboys stadium. At the time of the punt A.J. was 30 yards away from the edge of the tv screen (the tv screen starts at the 40 yard line, and AJ was at the 10...
  84. Art help with checking plzzzzzz

    Could someone please help me check these??? When using a green screen for filming, the 3d element Is: A) The green screen B) The actor or actress*** C) The specialized software D) The Image on the green screen How did the city of Venice Beach decide to manage graffiti A) Allow...
  85. trig ratios'

    To help a young tree grow straight, a gardener attaches three guy wires to it and the ground. She places the wires two feet below the top of the tree. If the wires are ten feet long and each makes an angle of 58 degrees with the ground. Find the height of the tree.
  86. English

    Identify the nouns and verb/verb phrases in the sentence. Employers value honesty and hard work. Nouns: Employers, honesty, and work Verb: Value
  87. Physics

    Hello, Could anyone help me with something about rolling motion? Well the question is the next: Does static friction cause a positive work in the rolling motion? I really don't get how the static friction is involved in rolling and if it causes work Please help
  88. Maths

    Tom takes three days to do a piece of work while Jerry takes only one day for the same. Together they both can finish the job in 15 days so how many days will tom will finish the work
  89. English

    1. It can give you happiness when you give happiness to others. (What does 'it' refer to in this sentence? What functions does 'it' have?") 2. Volunteer work is not something that you must do. 3. Volunteer work is not anything that you must do. (Are both correct? What is the ...
  90. English

    I need you to check the question and my answer to it. Shall I include more details in the question? In sentences 3 and 5 I don't know which connectors to use (to express a contrast between two different concepts). How can't find a suitable verb to finish of my paragraph. Thank...
  91. statistics/ Help!-thanks!

    The producers of a new toothpaste claim that it prevents more cavities than other brands of toothpaste. A random sample of 60 people use the new toothpaste for 6 months. The mean number of cavities at their next check up is 1.5. In the general population the mean # of cavities...
  92. Beginner French Work check

    Hello! Just wondering if someone could check my work as there were a few areas that i'm not completely confident about. Thank you so much! Complete the sentence with the correct form of the verb in the future. Elle ___sera venu_____ (venir) chez moi ce soir. Nous ...
  93. English

    Hi can you please help correct this paragraph or give me direction. Thank you, the assignment is: Your cousin has moved to your town and is looking for a job. Her previous experiences are working as a cashier and sales clerk at two department stores. You know she plans to ...
  94. Computer Programming

    I need a check on my answers 1) prompt a user to enter an employee name, employee id, and hours worked until a value of "-1" is entered for employye name. my answer: Start Declarations num EmployId, HrsWrked string EmployName housework() detailLoop() Stop housework() output "...
  95. Accounting

    Department J had no work in process at the beginning of the period, 18,000 units were completed during the period, 2,000 units were 30% completed at the end of the period, and the following manufacturing costs were debited to the departmental work in process account during the...
  96. physics

    A square loop (side L) spins with angular frequency ω in field of strength B. It is hooked to a load R. Write an expression for current I(t) in terms of B,L,R,ω and t (enter omega for ω). (b) How much work is done by the generator per revolution? Express your ...
  97. Trig (Last URGENT)

    sin2x+cosx=0 , [-180,180) = 2sinxcosx+cosx=0 = cosx(2sinx+1)=0 cosx=0 x1=cos^-1(0) x1=90 x2=360-90 x2=270 270 doesn't fit in [-180,180) what do I do? Or maybe I did something wrong. sinx=1/2 x1=sin^-1(1/2) x1=30 x2=180-30 x2=150 is this correct? Please and Thank you
  98. Trig

    Height of an Obelisk Two people decide to find the height of an obelisk. They position themselves 25 feet apart in line with, and on the same side of, the obelisk. If they find that the angles of elevation from the ground where they are standing to the top of the obelisk are ...
  99. Algebra 2

    so i got a question and would like to know if i did this right For problems 1 through 38, transform the given expression to simple radical form. You can check your answer by evaluating it and the original expression by calculator. on the previous page this definition was given...
  100. Math (check please)

    Could you check these please? Firewood is usually sold by a measure known as a cord. A full cord may be a stack 8x4x4ft or a stack 8x8x2ft 10. what is the volume of a full cord? 8*4*4=(128ft) 11. A short cord or a face cord of wood is 8x4xThe lenght of the logs. What is the ...
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  51. 50
  52. 51
  53. 52
  54. 53
  55. 54
  56. 55
  57. 56
  58. 57
  59. 58
  60. 59
  61. 60
  62. 61
  63. 62
  64. 63
  65. 64
  66. 65
  67. 66
  68. 67
  69. 68
  70. 69
  71. 70
  72. 71
  73. 72
  74. 73
  75. 74
  76. 75
  77. 76
  78. 77
  79. 78
  80. 79
  81. 80
  82. 81
  83. 82
  84. 83
  85. 84
  86. 85
  87. 86
  88. 87
  89. 88
  90. 89
  91. 90
  92. 91
  93. 92
  94. 93
  95. 94
  96. 95
  97. 96
  98. 97
  99. 98
  100. 99
  101. 100