# Trig check my work please?

42,204 results, page 72

1. ### Mathematical methods

Following completion of your weekly readings, complete the exercises in the “Projects” section on page 397 of Mathematics in Our World. You should be concise in your reasoning. For Project #1, work only equations (a) and (c), but complete all 6 steps (a-f) as shown in the ...
2. ### ENG 365 Issues in Literature

I have a summary paper to do that is suppose to be 8-10 pages. The problem that I am having is where to get started. This is what the teacher want us to do. Relate your life in work, social responsibility, and/or individual responsibility to a literary work. What themes do you...
3. ### physics

An 8 kg ball is moving at 4 m/s. Work is done on the ball to give it a speed of 12 m/s. What is the balls initial kinetic energy? What is the balls final kinetic energy? What work was done on the ball?
4. ### mdu rohtak

Tom takes 3 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. In how many days tom will finish the work?
5. ### Trig

Suppose you would like to cross a 200-foot wide river in a boat. Assume that the boat can travel 35 mph relative to the water and that the current is flowing west at the rate of 5 mph. What bearing should be chosen so that the boat will land at a point exactly across from its ...
6. ### Trig

tanBeta/(1-cos^2Beta) (sin/cos)times (1/sin^2)=sin/(cossin^2) 1/cossin Is this as far as I can reduce it?
7. ### Trig

Prove that : (Sin Ө + Cosec Ө)/(Tan Ө+Cot Ө) = Sin Ө + Cos Ө
8. ### TRIG

Can someone please help me? Use identities to find the indicated value for each angle measure. sin θ = 12/13, cos θ > 0 Find cos (2θ).
9. ### trig

solve for the equation x sin x= -.35 180<x<270 sin x= .2 90<x<180 cos x = -.72 180< x<270 please explain, thanks :)
10. ### Physics HELP!!!!!!!!

Suppose a monatomic ideal gas is contained within a vertical cylinder that is fitted with a movable piston. The piston is frictionless and has a negligible mass. The area of the piston is 3.06 10-2 m2, and the pressure outside the cylinder is 1.02 105 Pa. Heat (2109 J) is ...
11. ### math

In the first quarter of a year, a company’s records showed that 68% of its sales employees missed no work and 76% of its sales employees made their sales quota for the quarter. Of the sales employees who missed no work, 87% made their sales quota for the quarter. What is the...
12. ### English

Which of the following situations in "The Censors" represents an example of situational irony? A. Juan ends up being executed after censoring his own love letter to Mariana. B. Juan decides to report a colleague for trying to organize against the organization they work for.** ...
13. ### language art

Which sentence provides an example of swaggered? -Marco was so ashamed at the grade he received, he only stared at the floor as he walked back to his desk. -The audience could tell Kelsie was confident, based on the way she strutted down the aisle to claim her prize -The ...
14. ### language arts

1.Which sentence provides an example of swaggered? -Marco was so ashamed at the grade he received, he only stared at the floor as he walked back to his desk. -The audience could tell Kelsie was confident, based on the way she strutted down the aisle to claim her prize -The ...
15. ### Math/Calculus

Please take a look at my work below and provide a good critique: Solve the differential equation using the method of undetermined coefficients or variation of parameters. y'' - 3y' + 2y = sin(x) yc(x)= c1*e^2x+c2*e^x y"-3y'+2y=sin(x) r^2-3r+2=0 (r-1)(r-2)=0 r1=1, r2=2 yp(x)=...
16. ### business law

Allied Corporation in Boston offers a job to Carol, who lives in Denver. Carol orally agrees to work for Allied for two years. She moves her family to Boston and begins work. Three months later, she is fired for no stated cause. She files a suit against Allied for rein¬...
17. ### english

I hear America singing, the varied carols I hear; Those of mechanics--each one singing his, as it should be, blithe and strong; The carpenter singing his, as he measures his plank or beam, The mason singing his, as he makes ready for work, or leaves off work; The boatman ...
18. ### trig

I am very confused about the concepts of.. sin è = sin(180 - è) sin (180 + è)= -sinè tan (180 - è) = -tanè and how the final answer was found in this problem... Find cos 510: cos510=cos(540-30) =-cos30 =-s.r3/2 i don't understand how we went from -cos 30 to -s.r3/2 ?
19. ### English 10th grade

"Well that's sculpture, making a '74 Toyota look like a '63 Corvette, only I didn't think of it that way...I was doing good work, and I was making good money." What is the purpose of the ellipsis (...)? I have it down to two possible answers: A. to prepare the reader for a ...

On May 31, 2011, James Logan Company had a cash balance per books of \$6,781.50. The bank statement from Farmers State Bank on that date showed a balance of \$6,404.60. A comparison of the statement with the cash account revealed the following facts. The statement included a ...
21. ### accounting

On May 31, 2011, James Logan Company had a cash balance per books of \$6,781.50. The bank statement from Farmers State Bank on that date showed a balance of \$6,404.60. A comparison of the statement with the cash account revealed the following facts. The statement included a ...
22. ### math

On May 31, 2011, James Logan Company had a cash balance per books of \$6,781.50. The bank statement from Farmers State Bank on that date showed a balance of \$6,404.60. A comparison of the statement with the cash account revealed the following facts. The statement included a ...
23. ### trig

find cos(θ)ˏsin(θ)ˏtan(θ), if cot (2θ)=5/12 with 0≤2θ≤π Answer this Que
24. ### English...check my work

parts of speech 1.Mason is fantastic at gossamer billowing. my answer: Mason=noun, is=verb fantastic=adjective at=preposition gossamer=adjective billowing=noun We get to go home early on Wednesday. my answer: We=pronoun get to go=verb home=noun early=adverb on=preposition ...
25. ### Chemistry Help Please!

1) You have a protein at 20 ug/ml. Its MW =10,000. What is the concentration in molarity? Show work please! 2) You are asked to make 30 mL of a solution at 0.03M using the 0.10M stock solution. How many mililliliters of water do you use to make this solution? How many ...
26. ### solving Equations

Solve x square pluse 5x subtracting by 6 equals zero? X^2 + 5x - 6 = 0 Solve by factoring. 3 and 2 will do it. heres the right answer.... (x-1)(x+6)=0 x=1 x=-6 Let's see if that is the right answer. The first number is the product of the first two numbers; x*x = x^2. That isn'...
27. ### english

I need help with how to start a realistic plan which solves the uneven productivity between Jack and Ruth.Here's what it's about. Ten yearago, you started working as a clerk fo DMD Medical Supplies. Six months ago, Liz Jakowski, the human resources director, promoted you to ...
28. ### Cybersafety and Photo Management ~CHECK MY WORK~

1) Which term, as it relates to the Internet, means to act in an unthinking, unsafe, or disrespectful manner online? a. Irresponsible behavior b. Moderate-risk behavior ****** c. Low-risk behavior d. Responsible Behavior 2) Caley took a bunch of pictures at her birthday party ...
29. ### Math 7 A

Note: For questions 5 and 6, remember to show all of the steps that you use to solve the problem. Be sure to use the text box where the question mark (?) first appears to show your mathematical work. You can use the comments field to explain your work. Your teacher will review...
30. ### math work for workeys

Ok so I have an example and I used it for my work. First I'll show the example. Multiply a mixed number with a whole number. 4 times 2 and 1/8 . You multiply 4 times 2 and 4 times 1/8. Get 8 + 4/8. Simplified and got 8 and 1/2. The problem that I got was. You are a lead ...
31. ### Physics

An airplane pilot fell 355 m after jumping without his parachute opening. He landed in a snowbank, creating a crater 1.4 m deep, but survived with only minor injuries. Assume that the pilot's mass was 81 kg and his terminal velocity was 50 m/s. (a) Estimate the work done by ...
32. ### After finishing your education what do you hope to

Here is the second part of my project. Please list what and why. (After finishing your education what do you hope to accomplish in your professional and personal life?) Work and make enough \$ for the following purposes: for my parents and me to use in daily life, for me and ...
33. ### Trig

Dalco manufacturing estimate that its weakly profit, P, in hundreds of dollars,can be approximated by the formula P= -4x²+8x+7, where x is the number of units produced per week, in thousands. 1)How many units should the company produce per week to earn maximum profit 2)Find ...
34. ### Trig application

I have been working on this problem but I am not sure I am doing it right. During takeoff an airplane's angle of ascent is 18 degrees and its speed is 275 feet per second. A. Find the plane's altitude after 1 minute. B. How long will it take for the plane to climb to an ...
35. ### Physics

An 8 kg ball is moving at 4 m/s. Work is done on the ball to give it a speed of 12 m/s. What is the ball's initial kinetic energy? What is the ball's final kinetic energy? What work was done on the ball?
36. ### English

Please check if my memo is correct MEMORANDUM To: Managers of Semper Absum Insurance From: Walter smith Date: October 29, 2008 Re: Increase Employees work efficiency Effective from one week from today, all employees must have their one-hour lunchtime away from their desks. ...
37. ### Physics

Need someone to check my work and answers: At the instant the traffic light turns green, a car that has been waiting at an intersection starts ahead with a constant acceleration of 2.80 m/s2. At the same instant a truck, traveling with a constant speed of 20.0 m/s, overtakes ...
38. ### apply skills and rules improving your writing

Ten years ago, you started working as a clerk for DMD Medical Supplies. Six months ago, Liz Jakowski, the human resources director, promoted you to office manager. You manage two employees: Jack Snyder and Ruth Disselkoen. Your office provides secretarial support for the four ...
39. ### College Physics (repost)

A 4.1 kg block is attached to a spring with a force constant of 550 N/m , as shown in the figure. Find the work done by the spring on the block as the block moves from A to B along paths 1 and 2. W=? How do your results depend on the mass of the block? Specifically, if you ...
40. ### trigonometry HELP pleasE!

these must be written as a single trig expression, in the form sin ax or cos bx. a)2 sin 4x cos4x b)2 cos^2 3x-1 c)1-2 sin^2 4x I need to learn this!! if you can show me the steps and solve it so I can learn I'd be grateful!!! 1) apply the formula for sin 2z 2)3) cos^2z + sin^...
41. ### CHECK THIS OUT

"Drug use is information that is rightfully private and only in exceptional cases can an employer claim a right to know about such use." What are your thoughts? Please be aware that we are not here to do your homework or give you answers. Once you re-post with YOUR thoughts on...
42. ### College English Check

I was helping someone do a run on maze assignment and I just want these questions checked. The instructions said Complete the maze by following the correct sentences. These ones are the one's that I think weren't run on sentences. I enjoy fishing, however, I rarely eat fish. ...
43. ### English

Could you please check these sentences, please? Thank you very much for your invaluable help. 1) This TV programme concerns young people with discipline problems. They are sent to different parts of the world and live with families with very strict parents. 2) The first ...
44. ### English grammar check please

If someone could check these sentences for me that would be great. sentence beginning with a present participle: Beginning with Tom's conviction, Jem's belief in justice and the basic good of humanity is badly damaged. sentence that begins with a past participle: Brught to an ...
45. ### Trig

log base b 64 - log base b 16 = log base 4 16 solve for the variable.. i got to the part as far as: (log 4/log b) = 2 now i m stuck at how i can isolate the b. plz help!
46. ### trig

Solve cos x-1 = sin^2 x Find all solutions on the interval [0,2pi) a. x=pi, x=pi/2, x= 2pi/3 b. x=3pi/7, x=pi/2, x=2pi/3 c. x=3pi/7, x=3pi/2, x=3pi/2 d. x=pi, x=pi/2, x=3pi/2
47. ### English

I will check your reading activity with a gun on the screen of this laptop. (A gun is a selecting program on the computer.) When a number shows up on the screen, the student should come up here and read one part aloud. This reading text is divided into 4 parts. Draw your ...
48. ### Math

1. Rishi ram obtained an installment loan for \$3,000.00. He agreed to repay the loan in 6 monthly payments. His monthly payments is \$516.50. What is the APR? MY ANSWER=0.33% 2. Tim Newman took out a simple interest loan of \$1500 at a 10 percent interest for 12 months. After 4 ...
49. ### Physics

A mass m1 = 5.0 kg rests on a frictionless table and connected by a massless string to another mass m2 = 5.9 kg. A force of magnitude F = 40.0 N pulls m1 to the left a distance d = 0.77 m. 1)How much work is done by the force F on the two block system? 2)What is the final ...
50. ### Physics

What work is required to stretch a spring of spring constant 500N/m from x1=.2m to x2=.25m? Assume the unstreched position is at x=0. W=Fd so w=(500)(.25-.2) =500(.05) =25J is this correct? Calculate the work required to compress an initially uncompressed spring with a spring ...
51. ### math

I am not sure how to do these. 1. Simplify 4√6/√30 by rationalizing the denominator. Show your work. 2. Simplify (2√5 + 3√7)^2 Show your work. Justify each step.
52. ### Math-Trig

1. To avoid a steep descent, an airplane flying at 10 000 m starts its descent 60km away from the airport. For the angle of descent to be constant, at what angle should the plane descend? 2. A flagpole that is 20m high casts a shadow that is 18m long. What is the angle of ...
53. ### trig

If the value of sin theta =12/13 then find the value of 1-cos theta/1+cos theta.
54. ### trig

given that sin(a+b)= 56/65, cos(a+b)-33/65, cos(b)=-12/13 and pi/2<b<pi Find: sin(a)? cos(a)? tan(a)?
55. ### trig

if than of theta is greater than zero and cos of theta is greater than zero what quadrant is theta in?
56. ### Trig

If sin(t)=4/5 & 0<t<pi/2, find the following: a)sin t(-t) b) sin(t-2pi) c)cos t d)cos(pi-t)
57. ### Math 20 measurement

Please check to see if I'm even doing this right. A cylinder has a volume of 1000 cm^3 ± 2% and a height of 100cm ± 1%. What is the radius of the cylinder? Report your answer with the appropriate percentage error.Here's my work: volume = [980, 1020] height = [99, 101] volume...
58. ### Quick chemistry check

Please check each of these mole statements. Correct me if I'm wrong! 1. 59g of hydrochloric acid (HCL)=____moles I got 1.6 moles 2. 4.6 moles of sodium hydroxide (NaOH)=___ grams I got 184 grams 3. 35.0 of sulfuric acid (H2SO4)=__ f.u sulfuric acid I got 2.15x10^25th power ...
59. ### statistics

the probability that a key component of a stand -by generator will fail during a power outage is q. A generator works if at least half of its key component work.Assuming that the the generator has four key components. find the probability that the generator will work
60. ### english/check please

Change each of these indirect quotations to direct quotations.Punctuate your quotation properly. examples: - Mrs king said,"I enjoyed our golf game" _Mrs king said that she enjoyed the golf game. 1)Mrs.King said that she wants a new putter. -Mrs King said," I wanted a new ...
61. ### Honors Chemistry (check answers)

On a worksheet we got, we have to balance out chemical reaction equations then define what kind of reaction it is (synthesis, decomposition, single/double-replacement). Would someone be willing to check my answers, please? Thanks!! 1. c) BaO + H2O ==> ________ (synthesis...

1.) Two people of the same mass climb the same flight of stairs. The first person climbs the stairs in 25 s; the second person does so in 35 s. a) Which person does more work?Explain b) Which person produces more power?Explain 2.) Lee pushes a 20 kg mass 10 m across a floor ...
63. ### Accounting

Materials costs of \$300,000 and conversion costs of \$321,300 were charged to a processing department in the month of September. Materials are added at the beginning of the process, while conversion costs are incurred uniformly throughout the process. There were no units in ...
64. ### Workplace Hazards and Safety

Describe and explain 5 rights and/or responsibilities of the worker with regards to safety in the workplace. This is the information I have: Worker's responsibilites: -Cooperate with the joint committee or worker health and safety representative, WorkSafeBC prevention officers...
65. ### Health (Ms. Sue)

Describe what you would do if you saw a co-worker committing serious safety violations at work. A: If I saw a co-worker committing serious safety violations at work, there are several actions I would take. First, I would advise this co-worker to not commit these serious safety...
66. ### Global

made peace with PLO; shot by fellow Jew? who was that Please note that we don't do students' homework for them. Our tutors try to give you the information to help you complete your assignment on your own. If there's not a tutor with this specialty online right now, be sure to ...
67. ### Human Resource Management

Managing the internal and external environment of the human resource, assessing work and work outcomes, acquiring human resources and compensating human resources – which area do you think contributes the most to helping the firm gain a competitive advantage? Which area ...
68. ### physics

The (non-conservative) force propelling a 1.40 x 103-kg car up a mountain road does 7.60 x 106 J of work on the car. The car starts from rest at sea level and has a speed of 22.0 m/s at an altitude of 2.50 x 102 m above sea level. Obtain the work done on the car by the ...
69. ### physics

The (non-conservative) force propelling a 1.90 x 103-kg car up a mountain road does 6.70 x 106 J of work on the car. The car starts from rest at sea level and has a speed of 20.0 m/s at an altitude of 1.80 x 102 m above sea level. Obtain the work done on the car by the ...
70. ### physics

Determine whether each statement below is true or false. The force necessary to lift an object is its mass times g. Kinetic energy is the energy of motion. Stopping distance is doubled, if speed is doubled. Work is the product of force and time. A joule is a newton times a ...
71. ### Physics

Compute the initial upward acceleration of a rocket of mass 1.5 ✕ 104 kg if the initial upward force produced by its engine (the thrust) is 2.7 ✕ 105 N. Do not neglect the weight of the rocket. Pleas tell me the steps, I've tried getting the acceleration and ...
72. ### English

i am trying to write a paper on Frankenstein. the question is "Is Frankenstein a work of science fiction?"....i have to write a persuasive essay...i believe that it is a work of science fiction...but as ussuall i need sources and proves from the book to prove my opinion....so ...
73. ### physics

The (nonconservative) force propelling a 1.50 103-kg car up a mountain road does 5.10 106 J of work on the car. The car starts from rest at sea level and has a speed of 31.5 m/s at an altitude of 1.90 102 m above sea level. Obtain the work done on the car by the combined ...
74. ### verbals: gerunds answer check

sorry for the repetitive questions! otherwise thank you for taking the time to check my answers. Underline the gerund, some do not have a gerund if so write ''no gerund.'' 1. Sketching is fun for me. Sketching - Subject 2. Marya exercises every day by swimming. Swimming - ...
75. ### art

According to the author, A) the interpretation of a work of art is objective. B) a work of art may fall into more than one theme. C) it doesn’t make sense to compare art from different cultures. D) all of these are the case: the interpretation of art is objective; a work of ...
76. ### English

Hello everybody! I've got some problems with my english homework,and I'd really appreciate our help! My homework is : name a stressfull job eg.:doctor,manager than describe why this job is so stresfull,what can be the causers of sress.Why is this bad if you work as an xxxxx ...

A balloon isin the vertical plane of two consecutive milestones of a road. The angles of depression of the stones as viewed from the balloon are 15 degrees and 17 degrees. Find the height of the balloon if (a) the stones are on opposite sides of the balloon, (b) the stones are...
78. ### trig

howard and keight who are 2km apart are on a horizontal plane observe a balloon in the same vertical plane with themselves the angles of elevation are 50 degrees and 65 degrees respectively find the height of the balloon. A.if its situated between howard and keight B.If it is ...
79. ### trig

A surveillance satellite circles the earth at a hight of h miles above the surface. Suppose that d is the distance, in miles, on the surface of the earth that can be observed from the satellite. find an equation that relates to central angel (theta) to the hight h.
80. ### trig

two trains leave Kansas City at the same time. Train A is traveling due north at 55 mph, train B is traveling west at the rate of 65 mph. Find the distance between the two trains two hours later and the bearing of train B from train A.
81. ### Trig

If two runners determine the angle of elevation of a hot air ballon is 24.5 degrees and 22 degrees. The hot air ballon is 1500 feet directily above a point on the highway east of both runners. How far apart are they? A trigonometry question.
82. ### trig

Find all solutions to the following triangle. (Round your answers for angles A, C, A', and C' to the nearest whole number. Round your answers for sides c and c' to two decimal places. If either triangle is not possible, enter NONE in each corresponding answer blank.) B = 113...
83. ### TRIG

A circular power saw has an 8-1/2 inch diameter blade that rotates at 4400 revolutions per minute. a)Find the angular speed of the saw blade in radians per minute. b)Find the linear speed in feet per minute of one of the 24 cutting teeth as they contact the wood being cut. I'd...
84. ### calculus

find max, min and saddle points of the give function f(x,y)=sin(x)+sin(y)+sin(x+y) 0<=x<=pi/4 0<=y<=pi/4 i have that dz/dx=cos(x)+cos(x+y) dz/dy=cos(y)+cos(x+y) and i set them equal to zero but im kinda confused on how to really solve that. i mean i got an answer ...
85. ### Trig

a child puts beads on one spoke of a bicycle wheel. the tire has a diameter of 2ft. if the child rides so that the tire makes one full rotation every 15 sec, and the beads begin in the horizontal outward position, find an equation that models the position of the beads at time t.
86. ### Trig

Find all solutions w between 0 and 360, inclusive: (a) cosw = cos(−340) (b) cosw = sin 20 (c) sinw = cos(−10) (d) sin w < − 1/2 (e) 1 < tanw
87. ### Trig

Should the triangle be solved beginning with Law of Sines of Law of Cosines. Then solve the triangle. Round to the nearest tenth. a=16, b=13, c=10. Cosines A=93 degrees, B=54 degrees, C=33 degrees
88. ### trig

if alpha and beta are 2 different values of θ lying between 0 and 2π which satisfy the equation 6cosθ+8 sinθ=9 find the value of sin alpha + beta
89. ### trig/precalc

An airplane with a ground speed of 750 mph and a bearing of N 40 E encounters a wind of 50 mph with a bearing of S 30 E. Find the bearing and ground speed of the plane.
90. ### Calculus

∫((cos^3(x)/(1-sin^(2)) What is the derivative of that integral? I have been trying to use trig identities but can't find one to simplify this equation. I can't find one for (cos^3(x) or (1-sin^(2)) My options -sin(x) + C sin(x) + C (1/4)cos^(4)(x) + C None of these
91. ### Trig

Find all solutions w between 0 and 360, inclusive: (a) cosw = cos(−340) (b) cosw = sin20 (c) sinw = cos(−10) (d) sinw < − 1 2 (e) 1 < tanw
92. ### trig

given that 1/2pi<theta<pi and sin theta=1/5, use appropriate trigonometric formulas to find the exact values of the following (i) cos(2theta) (ii) cos theta (iii) sin(2theta)
93. ### Trig

A ship leaves port and sails at a bearing of 124degrees. Another ship leaves the same port, at the same time, sailing at a bearing of 74degrees. When both ships are 80 miles from the port, how far are they from each other?
94. ### Trig.

Josh kicks a soccer ball with an initial velocity of 18 feet per second out of a window from a height of 12 feet. The function h(t)= -16t^2+18t+12 represents the height of the soccer ball after t seconds.What is the domain of this function in the context of this problem?
95. ### Trig

The magnitude and direction of two forces acting on an object are 100 pounds, S79degreesE, and 60 pounds N68degreesE, respectively. Find the magnitude, to the nearest tenth of a pound, and the direction angle, to the nearest tenth of a degree, of the resultant force.
96. ### Trig - sum and difference formulas

Write the expression as a single trigonometric functions: cos 6x cosx - sin6x sin x if you could do it step by step? also... How do I prove that sin(90deg + theta) = cos(theta)?? also step by step so i may learn?
97. ### trig

An aircraft maintains a speed of 500 miles per hour in a southwestern direction. The velocity of the jet stream is constant 50 miles per hour from the west. Find the resultant vector, the speed, and actual direction of the aircraft.
98. ### psy

Eric has computed that it takes an average (mean) of 17 minutes with a standard deviation of 3 minutes to drive from home, park the car, and walk to his job. One day it took Eric 21 minutes to get to work. You would use the formula for transforming a raw score in a sample into...
99. ### Math/trig

Log radical b/ a^2 is equivalent to 1) 1/2 log b + 1/2 log a 2) l/2 log b- 2 log a 3) 2 log b - 1/2 log a 4) 1/2logb/2 log a
100. ### Simplifying trig expression

sin(x+90) = ? cos(x+90) = ? Would the first equal like -sin(x)? Would the second equal uh -cos(x)? I'm not quite sure :/