Trig check my work please?

90,377 results, page 85

  1. psychology

    hi, i need help please can you help me Asahe oves quickly around the restaurant where she works as a waitress, Alicia fnds herself humming in her head the phrase,"Just whistle while you work!" this is an example of a/an A) proposition b) prototype C) auditory image D) ...
  2. Management Policy

    A paper that is 2 pages long, double spaced, please I broke my arm, had surgery and now behind in class work. Professor not cutting me too much slack this is the only other option I have. Why is strategy important to business?
  3. 1 Geom. question

    I don't want the answer I just need to know how to work the problem.. i cant figure it out. Please help! What are the values of a and b? C:\Users\Emily Shae\AppData\Local\Microsoft\Windows\Temporary Internet Files\Low\Content.IE5\DLWQEEA2\paint[2].jpg
  4. statistics

    Employees at Evergreen Manufacturing company have annual salaries ranging from a low $12,500 to a high of 92,000. Assuming that you want to construct a frequency table with eight classes, find the upper and lower limits of the first class. How do I work the problem? Please?
  5. math

    Julia paddleboat travels 2km/h in stilll water. The boat is paddled 4km down stream in the same time it takes to go 1km upstream what is the speed of the river. Please help and show all work I suck at story problems haha
  6. Algebra

    Could you please check my work on these word problems? My solutions just don't seem right, could you please let me know where I may have messed up. Many people know that the weight of an object varies on different planets, but did you know that the weight of an object on Earth...
  7. Physics

    A steam-electric power plant delivers 900 MW of electric power. The surplus heat is exhausted into a river with a flow of 2.91×105 kg/s, causing a change in temperature of 1.07 oC. A. What is the efficiency of the power plant? B. What is the rate of the thermal source? MY ...
  8. History Help!

    1.How did New England's textile industry affect women? -New technologies required men to work far from their wives and families -The jobs in this field were considered "mens work," and women were not hired -The need for unskilled labor provided low-paying factory jobs for ...
  9. English

    Hello. Please help me to check the sentences: 1) His sister or his brother hasn't any bank accounts. 2) His sister and his brother haven't any bank accounts. Thank you for your help.
  10. statistics check my work..thank you

    Use “service” to assess if there is any difference in duration of hospital stay based on what type of service medical or surgical the patient received during the 25 days in hospital (Key medical=1, surgical=2) what is the sample size, mean and standard deviation? Duration ...
  11. English

    1. He has as many books as Tom. 2. He has as much money as Tom. 3. He is as strong as Tom. 4. He runs as fast as Tom. 5. He jumped rope more than Jane. 6. Tom jumped rope as many as Mike. (Are they all grammatical? Would you check the sentences, please?)
  12. Question & Work

    Can somebody tell me how come my work doesn't get posted with my question.
  13. alGEBRA 1

    how many minutes are there in 10 days? show work i know the answer but i don't get how to show work?
  14. English

    Find the verb. Exactly how does the brain work? verb: work
  15. Geometry

    3.In step 1, you found the volume (in cubic feet) of the main tank. If the maximum density of killer whales per cubic foot is 0.000011142, what is the maximum number of killer whales allowed in the main show tank at any given time? You must explain your answer using words, and...
  16. Chemistry

    I have been researching, but I find no reliable sources. I want to check with you if these are true.... Are we actually not touching the ground due to the repulsion of the electron clouds between our feet and the ground? Same with the clothes we wear and our body?? Are we not ...
  17. 6th grade math

    We are learning probability and can you please check my answer. Question: Enrique has 3 dimes, 2 quarters, and 5 nickels in his pocket. He takes one coin from his pocket at random. What is the probability that the coin is either a dime or a nickel? My answer is 8:10 which ...
  18. exceptional children

    a naturalistic language-learning environment a occurs mostly in the home b. is created whenever a child is communicating with others c. occurs mostly in speech therapy d. excludes speech therapy I chose "c" as my answer can someone please check
  19. chemistry(Please check)

    1) In comparing the phase diagram for water with that of a solution of sugar in water, all of the following decrease except a) the vapor pressure b) the boiling point c) the freezing point d) the triple point I chose the boiling point as the answer. Is this correct? Thank you.
  20. Chemistry(Please check)

    1) The reaction: A + 3B = D + F was studied and the following mechanism was finally determined A+B=C (fast) C+B=D+E (slow) E+B=F (very fast) Which step has the largest activation energy? I chose the second step because it is slow and should have the most energy. Is this correct?
  21. Science 7R - HW Qs. Check (Q2)

    why are there fewer organisms as you move toward the top of the energy pyramid? answer - As you move up the pyramid the transfer of energy (10 pct per level is transfered) is less efficient & each level becomes smaller. am i correct???? (please be honest)
  22. geometry

    Ok, so I have this worksheet due, and it's for a lot of points, so can you check over my answers please? Can you leave your email so I could forward the scan to you? The worksheet has a lot of labeled shapes, so it's hard to describe in text. These are the answers that I got: ...
  23. Chem Check Please!!!

    Calculate for the electrochemical cell below, Ag(s) | AgCl(s) | Cl–(aq) || Cu2+(aq) | Cu(s) given the following standard reduction potentials. Cu2+(aq) + 2 e– -> Cu(s) E = +0.337 V AgCl(s) + e– -> Ag(s) + Cl–(aq) E = +0.222 V a. –0.115 V b. –0...
  24. Chemisty-Freezing Points

    The freezing point of benzene is 5.5°C. What is the freezing point of a solution of 8.50 g of naphthalene (C10H8) in 425 g of benzene (Kf of benzene = 4.90°C/m)? delta T = Kf m m = mols/kg solvent. Change 8.5 g naphthalene to mols and 425 g benzene to kg. That will get delta...
  25. Physics please check repost

    In exercising, a weight lifter loses 0.100 kg of water through evaporation, the heat required to evaporate the water coming from the weight lifter's body. The work done in lifting weights is 1.30 x 10^5 J. (a) Assuming that the latent heat of vaporization of perspiration is 2....
  26. dog behavior

    please check answer thanks Modeling is a training technique that involves A. providing one dog as an example for another dog to follow B. giving positive reinforcement for correct behavior C. using dependent and independent variables in an experiment D. habituating a dog to a ...
  27. Physics help again!

    A ball is thrown horizontally off a 35 m tall building. It hits the ground 80 m from the bottom of the tower. a. what is the balls time in the air [i got 2.67] b. what is its initial velocity? [i got 0] c. What is the magnitude and direction of its velocity as it strikes the ...
  28. Physics, Collisions

    A pendulum of a given mass is pulled back through a given vertical height and released to swing back down to a 'wall' where it impacts. Can i use mg delta h to get E kin; and then use E= half mv^2 to get the collision impact velocity? Would someone check my thinking please? ...
  29. French

    Could you please check these thanks god bless. Directions: Match each word in the left hand column with it's opposite in the right hand column. 1. -------- large A. au- dessous 2. -------- long B. noir 3. -------- sport C. serré 4. -------- au-dessus D. plus cher 5. -------- ...
  30. world history

    Which civilizations were likely to have contact with each other?Why? _answer: Indus valley and Shang because they are close geographically B)Between which lines of latitude did early civilizations develop? Why? _Between lines of 20N and 40N. Because at this latittude they have...
  31. Foreign languages

    I left out this short paragraph. Could you please check it? 1) I really hope everthing is Ok with you. My students are really looking forward to starting the email partnership. I would be therefore be extremely grateful to you if you could let me have all the email adresses by...
  32. check my science hw please.

    18. Which of the following would be a cost of drilling for oil in Antarctica? A. The supply of heating fuel would be increased. B.There would be a greater opportunity to study wildlife there. C. An oil spill could harm food sources for penguins. D. Many new jobs would be ...
  33. English

    Choose the best word to describe labyrinths ...His clothes were in tatters, as if he had sailed through labyrinths of coral. A) Circular tunnels B) Blind alleys*** C) Colorful palaces D) Tide pools A labyrinth is a maze right? So is it B, blind alleys. Can someone please check...
  34. Chem 1

    Use the following data (in kJ/mol) to estimate the standard enthalpy of formation (in kJ/mol) for hypothetical compound CsF2 in the solid state. Lattice energy of CsF2 -2347 First ionization energy of Cs 375.7 Second ionization energy of Cs 2422 Electron affinity of F -328 ...
  35. trig

    The number of a fraction is three more than twice the denominator. The fraction simplified is equal to 9/4 Find the fraction
  36. trig

    in proving trigonometric identities if cot theta sin theta = cos theta. what is the correct answer?
  37. trig

    what is the correct answer in proving trigonometric identities if tan theta/sin theta = sec theta
  38. trig

    what is the correct answer in proving trigonometric identities if tan theta / sin theta = sec theta
  39. trig

    Solve for theta, giving a general formula for all of the solution: tan(theta)=-1 sin(theta/2)=1/2
  40. trig

    use basic identities to simplify the expression. csc θ cot θ / sec θ
  41. college trig

    find the radius of a pulley if rotating the pulley 108.03 degrees raises the pulley 37.3mm
  42. trig

    evaluate the expression under the given conditions tan 2 theta; cos theta=7/25, theta in quadrant I
  43. trig

    The hypotenuse of a right triangle has length 8. The area of the triangle is also 8 units squared. What is the perimeter of the triangle?
  44. Drivers Ed.

    What conditions determine an open rear zone? What are the three stopping positions? When turning, where should your last check be? When must you check your mirrors? When turning left, what should your searching procedure look like? When entering a roadway from an alley, ...
  45. Spanish-8th please check for errors

    ¿Cómo se llama tu maestro de español? Mi maestra se llama es Señora Johnston. Mi maestra se llama es Maestra Johnston.
  46. College Algebra

    OOPS I got the zeros wrong in the last post...please show work. Find a polynomial of the specified degree that has the given zeros Degree 4: zeros -2,0,2,4
  47. Math

    In a subdivison, 67% of homes have detached garages, 32% have a patio, and 13% have both. What is the probability that a house has a pation if you know that it has a detached garage? Please explain how you did the work, thanks.
  48. Math

    In a subdivison, 67% of homes have detached garages, 32% have a patio, and 13% have both. What is the probability that a house has a pation if you know that it has a detached garage? Please explain how you did the work, thanks.
  49. 3rd grade math

    Robert is writting a poem. The poem is divided into 5 stanzas and is on 2 pages. There are 60 lines in the poem. How many lines are in each stanza? show work please
  50. physics

    1. a force of 30n with a direction of 35 degrees northwest acts on point p. Find: a) the northward component on the force b) the westward component of the force Please show work. Thanks!
  51. calculus

    use the given zeros to find the remaining zeros of the function h(x)=x^4-9x^3+12x^2+138x-1360 zero:3-5i enter the remaining zeros of f please show work
  52. Algebra

    7x + 5 = y 3.5x + 20 = y Solve the system of equations. What method did you use to solve the system and why? Show your work. Can someone please explain to me the process of solving the system? That would be nice. Thanks! (=
  53. Math Please Help

    In a recent survey of middle school students about pizza toppings, it was found that 25 students like pepperoni pizza, 31 like banana peppers pizza, and 5 likes both pepperoni and banana peppers on their pizza. if 66 students were surveyed, how many students do not like banana...
  54. physics

    Machines A, B, and C do the same amount of work, but they each take a different amount of time. Machine A takes more time as compared to machine C. Machine B takes the maximum time to do the same amount of work. Which machine expends the most power doing this work?
  55. need help please

    solve each system graphically. be sure to check your solution. if a system has an infinite number of solutions, use the set-builder notation to write solution set. if a system has no solution, state this. where appropriate, round to the nearest hundredth. 6x-2y=2 9x-3y=1
  56. Chemistry

    What mass of KIO3 is needed to convert the copper in 0.200g of CuSO4.H2O to Cu(IO3)2? my answer is: 0.828g Cu(IO3)2 x (2*214.003 MolarM KIO3/ 413.36 MolarM Cu(IO3) = 0.857g KIO3 could you please check if i got it right
  57. math 30 Trig

    If sin theta = -7/8, then the value of 1/cot theta in the interval 3pi/2 <theta <2pi is:
  58. trig

    In ΔXYZ, ∠X=47° and ∠Y=29°. ∠XWZ=90° and XY=3.9. Find the length of WY to the nearest 100th.
  59. Trig

    Given that theta is a quadrant 3 angle with cos of theta=-7radical65/65, determine tan of theta
  60. trig

    A 115 foot foot casts a 147 foot shadow, what is the degree of elevation to the sun
  61. trig

    Find the smallest positive value of x(in degree) for which tan(x+100°)=tan(x+50°)*tanx*tan(x-50°)
  62. trig

    Suppose that 0degrees<theta<180degrees. what is the sign of each of the following? a) cos theta/2 b)sin(-theta)
  63. trig

    Suppose that 0degrees<theta<180degrees. what is the sign of each of the following? a) cos theta/2 b)sin(-theta)
  64. trig

    write sec theta in terms of sin theta when theta lies in quadrant III
  65. Trig Maths

    solve the equation 5sin(θ -pi/6)=8cosθ for values of 0<=θ <=2pi
  66. Trig Maths

    solve the equation 5sin(θ -pi/6)=8cosθ for values of 0<=θ <=2pi
  67. Trig help

    What values for theta(0<_theta<_2pi) satisfy the equation? 3sin theta = sin theta-1
  68. Trig

    If tan theta = a/b, where a and b are positive, and if theta lies in quadrant III, find sin theta
  69. Trig

    If cot theta = -12/5 and the terminal side of theta lies in quadrant II find secant theta
  70. Trig

    find the algebraic expression that is equal to sin (-theta) sec(-theta) cot(-theta)
  71. Trig

    Write an equation of the circle described below: Given a circle with the center (5,1) and a point on the circle (8,-2).
  72. Pre-Calc/Trig...

    Help me please. Which of the following accurately depicts the transformation of y=x^2 to the function shown below? y=5(x-2)^2+1 A. Shift 5 units right, stretch vertically by a factor of 2, then shift up 1 unit. B. Shift up 1 unit, stretch horizontally by a factor of 5, then ...
  73. Physics

    In 1989, Carl Lewis established a world record when he ran the 100 meter dash in 9.92 seconds. What was his average speed(in m/s) for the race? Remember to include your data, equation, and work when solving this problem. I am not sure how to do this problem. Please help!!
  74. Chemistry

    A piece of metal of mass 20.0g @ 100°C is placed in a calorimeter containing 50.7g of water at 22.0°C. The final temperature of the mixture is 25.7°C. What is the specific heat capacity of the metal? Assume that no energy leaves to the surroundings. Not sure how to work ...
  75. human services

    I can not find the answer to this question;Does the Association of Social Work Board offer qualified referrals or suggest community based programs which may benefit your client base. could you please help me find a site that may have the information that I am looking for?
  76. Computers

    I know that there are a whole bunch of proxy servers out there but I can't seem to find one that will help me get around the system. I am wanting to use this proxy address to help me access school resource websites, but they're all blocked. HELP!!!! Please reply soon so I can ...
  77. Chemistry

    Consider the decomposition of a metal oxide to its elements where m represents a generic metal. M2O(s)<->2M(s)+1/2O2(g) the delta G is 10.30 I need to find K and PressureO2 at 298K I know the equations but i keep getting the answer wrong could you please help me. Could ...
  78. physics

    A race car moving at 157km/hr decelerates at -7.00 m/s^2 to a speed of 75.0km/hr A) how long did this take? B) how many meters did the car travel during this deceleration? I attempted this problem many times and i don't seem to get the correct answer please show all work thank...
  79. phySICS NEED HELP ASAP

    Sally the bug has an initial speed of 20.0cm/s. She then accelerates at 8.00cm/s^2 for 5.00s. calculate sallys total displacement? which i did and got 200 cm Displacement during the 5th second? can you please help and show all work
  80. algebra

    Simplify. 3 - 2(4 - 7) ÷ 9 i don't know what ta dooooo 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 ...
  81. chemistry

    How many g of H2 is formed from 2.4 g H20 according to the following reaction. 2H2O--->2H2O+O2 I believe the answer is .27g However, I can't understand how to work the problem completely out or one like it, if someone could please explain the formula it would be appreciated.
  82. Physics

    A 1200 kg sedan is traveling at 10m/s when it is hit from behind by a 1000 kg convertible. The bumpers of the cars crush and lock. Their combined speed just after the crash is 16 m/s. What is the velocity of the convertible before the collision? Please show your work.
  83. Alg II/Trig

    A parabola has a vertex at (0,0); a horizontal axis; and the point (12,6) is on the parabola. Write the equation of the parabola in standard form.
  84. trig

    Use a compound angle formula for sine to show that sine2(theta) = 2sine(theta)cos(theta)
  85. trig

    Find all values of [theta] in the interval 0°<=X<= 360° that satisfy the equation cos2[theta]-cos[theta]=0
  86. Trig

    If b=5 , the angle C=50 and the angle A=50 find the other angle B and the remaining sides and . Give your answer to at least 3 decimal places.
  87. trig

    Let be an angle in quadrant II such that sec(theta) -4/3 . Find the exact values of cot (theta) and sin (theta).
  88. trig

    Suppose that the point P is the point on the unit circle that is associated by the wrapping function with the number 31. In which quadrant is the point P located?
  89. trigonometry

    given that sin alpha/2 = 2/3, and that alpha/2 is in quadrant II, determine the exact values of all trig functions for alpha.
  90. trig

    ABC- with angles AB, and C and sides AB,BC, and AC, angle B is right 90degree angle, if sin of angle A is 0.5, side BC 8in., what is length of AC
  91. TRIG

    the population of a certain city is 1.3 million people. if the population is growing at the rate of 4% per year what will the population be in 8 years
  92. Trig

    suppose tan theta equal 4 and theta lies in the third quadrant. find the values of sec theta
  93. Trig

    A vertical tower is on a 12° slope. from a 50 m down the hill, the angle of elevation of the top of the tower is 30°. find the height of the tower
  94. Trig

    Find all values of theta where 0degrees<theta<360 degrees when csc theta = square root 2
  95. Trig

    Find all values of theta where 0degrees<theta<360 degrees when csc theta = square root 2
  96. Calculus

    S=integral sign S3x(4-x^2)^1/2 use trig substitution I am confused I got x sin(sin^-1(x/2))+cos(sin^-1(x/2))
  97. ALGEBRA 2

    Mrs. Smith drove at a rate of 45 mi/h from her home to her sister's house. She spent 1.5 hours having lunch with her sister. She then drove back home at a rate of 55 mi/h. The entire trip, including lunch, took 4 hours. How far does Mrs. Smith live from her sister? I set it up...
  98. math

    Lydia is comparing two checking accounts, one has a monthly fee of $10 and a per-­check fee of $0.10, and the other has a monthly fee of $5 and a per­-check fee of $0.25. What is the minimum number of checks Lydia needs to write for the first bank to be a better option?
  99. Language Arts

    Directions. Identify the tense of each underlined verb. Write past, present or future. In this assignment there is nothing underlined. 1. You will enjoy this book about inventions. -Future 2. Inventors create new machines. -Present 3. Each machine does a different task. -...
  100. English-Urgent

    I have to find the subjects and verbs in all these sentences, please let me know if I did it correctly. Thank you. A guy whom I work with has a theory about college students. (Verb=work, has) (Subject=guy, theory) He believes that students' majors reflect their personalities...
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