# Trig check my work please?

42,204 results, page 66

1. ### Math

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

Which of the following adjustmnts will require the company to record a debit memo sent by the bank? a. The bank collected a \$550 note receivable, plus interest, which had not been recorded in the company's journal. b. The company recently made a \$692.28 deposit that has not ...

In changing the state of a system from state A to state B adiabatically the work done on the system is 322 J. If 100 cal f heat are given to the system in bringing it from state A to state B, then what will be the work done on the system in this process?
4. ### trig

A bicyclist is riding at 15 mph and her bike has wheels with a radius of 14 inches. She rides over a wad of gum which sticks in the tire. Assume this is t=0 seconds. a.)Find a function that gives the height in inches above the ground of the gum, with the input in seconds. Also...
5. ### Trig

The original screamer radius =100 feet rotated 1 deg per sec. The engg decided to make it scarier by making it rotate 18 deg per second. Write the new equation for the vertical position of a passenger on the screamer where the domain is now the time per revolution (in sec)
6. ### English

I forgot to include the following examples.I urgently need to know if they are possible. 1) I usually ride my bike to school. My father drives his car to work. You can drive at 50 kilometers per hour on an Italian urban road. 2) You can drive at 130 kilometers per hour (you ...
7. ### Algebra

10. Solve each radical expression. Check your solution. 1=√(-2v-3) 11. Solve each radical expression. Check your solution. √(n+5)= √(5n-11) 12. Tell which solutions, if any, are extraneous for each question. √(12-n)=n; n= -4,n=3
8. ### physics

A force of 200N is needed to push a 500N object up the inclined plane pictured below. Determine the force in, the force out, the distance in, the distance out, the work in, the work out, the mechanical advantage, the therotical mechanical advantage, and the efficiency
9. ### probability

a teacher on her way to work passes through 3 stoplights each morning. the distances between the stop lights are great and the lights operate independently of each other. if the probability of the red lights are .4,.8 and .6 for each light, what is the probability to the ...
10. ### Physics

A net force of 5.75 * 103 N [180degree ] acts on a mass of 23.0 kg. If, while the force acts, the mass travels through a displacement of 360 m [210 degree ], what work did the net force do on the object? Into what form of energy was this work transferred?
11. ### Intermediate algebra

Can you show the work of how to work this word problem ? A local electronics store will sell 7 ax adapters and 2 rechargeable flashlights for \$86 or 3 ac adapters and 4 rechargeable flashlights for \$84. What is the price of a single ax adapter and a single rechargeable ...
12. ### Intermediate Algebra

Can you show the work of how to work this word problem ? A local electronics store will sell 7 ax adapters and 2 rechargeable flashlights for \$86 or 3 ac adapters and 4 rechargeable flashlights for \$84. What is the price of a single ax adapter and a single rechargeable ...

2. Reah filed a case against her employer who dismissed her from service for reporting to work under the influence of alcohol. Which of these would be valid reason to contest the dismissal? a.)Reah's employer had not listed reporting to work after consuming alcohol as one of ...
14. ### airthmetic progression

300 men wre engaged to complete a job in acertain number of days.but due to another assignment 15 men dropped the second day,15 more dropped in the third day and so on. it takes 15 more days to finish the work now.find the no. of days in which the work was completed
15. ### Trig

when sitting atop a tree and looking down at his pal Joey, the angle of depression of Mack's line of sight is 53degrees 51inch. If joey is known to be standing 25 feet away from the base of the tree, how tall is the tree (to the nearest foot.) Who ever answer this plz do it ...
16. ### Chemistry

Heyy, okay I have this chemistry assingmnet and its on kinetics, and I got every single one except this one question and I've been trying for over an hour. I know that I'm probably jus tmissing something but everything I've tried doesnt work. Any help is greatly apprecaited. ...
17. ### english

can u edit this and add a little more plz like 2-3 lines plz in easy words, it is from the book we are all welcome here by elizabeth berg: Historically the work is significant because it gives us an insight of the horrors of the civil war, which asserted the rights of the ...
18. ### Economy

The Good’n’Fresh Grocery Store has two checkout lanes and four employees. Employees are equally skilled, and all are able to either operate a register (checkers) or bag groceries (baggers). The store owner assigns one checker and one bagger to each lane. A lane with a ...
19. ### Chemistry - Periodic Table+IE(check+help)

The following data lists the ionization energies for a given atom: IE1 = 738Kj/mol; IE2 = 1451Kj/mol; IE3 = 7733Kj/mol. Predict the valence electron configuration for this atom, and explain your reasoning. i do not understand this question but i will give it a try, please ...
20. ### Chemistry - Periodic Table+IE(check+help)

The following data lists the ionization energies for a given atom: IE1 = 738Kj/mol; IE2 = 1451Kj/mol; IE3 = 7733Kj/mol. Predict the valence electron configuration for this atom, and explain your reasoning. i do not understand this question but i will give it a try, please ...
21. ### Math

Use the point-slope form linear equation given to complete the following problems. y-3=3(x+1) 1. What is the slope of the given line? Here's what I did: y-3=3(x+1) y-3+3=3x+3 y=3x+6 m=3 Correct so far? 2. What point does this line pass through, which is the basis of this ...
22. ### 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 ...
23. ### math

Solve the following algebraically. Trial and error is not an appropriate method of solution. You must show all of your work and write answers in rational form. 3 x + 7 = 9 Answer: x = 2/3 Show your work here: 3 x + 7 = 9 -7 - 7 3/3 x = 2/3 X = 2/3 b) Answer: x= -2 Show your ...

Please check my answers because I need to do good at this. 1. When consuming fats the healthiest choice is foods high in? A. saturated fats B. unsaturated fats * C. trans fat D. cholesterol 2. The body's main energy source should come from what essential nutrient? A. protein* ...
25. ### Algebra 2 word problem

Just wanted to check to see if these are correct. Thank you, Please check if a greyhound bus travels 7mph slower than the express bus. the express bus travels 45 miles in the time it takes the greyhound bus to travel 38 miles. find the speed of each bus greyhound 38/x-7 ...
26. ### AP ENGLish

Many plays and novels use contrasting places (for example, two countries, two cities or towns, two houses, or the land and the sea) to represent opposed forces or ideas that are central to the meaning of the work. Explain this contrast within the play, "The Importance of Being...
27. ### Statistics

The probability of Joe is at work is 49%. The probability Joe is at home is 25%. What is the probability Jow is neither at Work nor at home? A) 39% B)74% C)52% D)26% I get the answer at about 38%,but doesn't round to 39%, can anyone help, I'm stuck.
28. ### math

Charles work a total of 30 hours last week. he worked 10 hours on Monday. what fraction of his work hours for the week did he complete on Monday?
29. ### Hypergeometirc Distribution

From a lot of 12 flares, 4 are selected at random. If the lot contains 4 defective flares *flares that will not fire), what is the probability that all 4 will not work? What is the probability that at most 2 will not work?
30. ### Physics - Work

A tennis racket is in contact with a 55 kg ball for 0.0050 s changes the ball's velocity from 30 m/s [E] to 40 m/s [W] over a distance of 0.0001 m. how much work is done on the tennis ball by the racket?
31. ### Science

Why do scientists use models? a: Scientists use models to learn about things that are too small, too large, or too complex to observe directly. < b:Scientists use models because doing so is always part of the scientific method. c:Scientists use models because they always ...

Find exact values for all the solutions to the equation cos theta = sqrt 3/2 for -2pi <= theta <= 2pi Theta = Theta = Theta = Theta =
33. ### trig

(3 tan^2x-1)(tan^2-3)= 0 can someone please explain how to do this problem and then explain the whole pie thing at the end...like, this is suppose to equal pie/6 b/c it's tan...im soooo confused.....
34. ### Trig

In triangle ABC, A=35 degrees, a=43, and c=20. Determine whether ABC has no solution, one solution, or two solutions. Then solve the triangle. Round to the nearest tenth. no solution.
35. ### Geometry/Trig.

For acute angle Aof a right triangle, find tan A by using the 45-45-90 Triangle Theorem or the 30-60-90 Triangle Theorem. measure of angle A=45 degrees.
36. ### Trigonometry

How am I suppose to transform the left side of the equation into the right side using trig identities? ): 1) sin^2θ - cos^2θ = 2 sin^2θ - 1
37. ### trig

A tower is supported by a guy wire from the top of the tower to the ground 16 ft from its base. The wire makes an angle of 62 with the ground. The length of the wire is a. 30.09 ft b. 18.12 ft c. 28.41 ft d. 34.08 ft
38. ### trig

for the geometric series shown, state whether the series in convergent. If the Series is convergent give its sum 9+6.3 +4.41 +... a tutor helped me earlier but how is the sum 0.7
39. ### 11th grade math algebra 2 trig

the tens digit of a two digit number is 6 more than the units digit. the number is 36 more than the number when the digits are reversed/ what is the number?
40. ### trig

A ladder leans against a house at a point 19 feet high. The ladder is 25 feet long. What is the measure of the angle formed by the ladder against the house?
41. ### trig

weather balloon is directly west of two observing stations that are 10 mi apart. The angles of elevation of the balloon from the two stations are 17.6 degrees and 78.2 degrees. How high is the balloon?
42. ### Trig

Verify each trigonimetric equation by substituting identities to match right hand side of the equation to the hand side of the equation. Please help. -tan^2x+sec^2x=1
43. ### preap physics

A 15.4kg block is dragged over a rough horizontal surface by a constant force 191N acting at an angle of 25.3 degrees above the horizontal. The block is displaced 80.4m and the coefficient of kinetic friction is. 2 A) find the magnitude of the work done by the force of ...
44. ### Algebra

Consider the points (3, –1) and (9, 2). (a) State the midpoint of the line segment with the given endpoints. (b) Find the distance between the points. Show some work. Give the exact answer (involving a radical), and also an approximation to three decimal places. (c) Find the...
45. ### physics 111

A block of mass 2.50 kg is pushed 2.80 m along a frictionless horizontal table by a constant 10.0 N force directed 25.0° below the horizontal. 1) what's the work done by the applied force? in joules 2)whats the work done by the normal force exerted by the table? in joules im ...
46. ### math

13 out of 25 college students work at part-time jobs. What percent work at part-time jobs?
47. ### Math

Hi. Im trying to figure out how to solve an equation for x. The equation is y=2(x-3)^2. If I were to work this out, I would have come up with the answer x=sqrt y/2 +3 but the answer is actually x=sqrt 2y/2 +3. I can't work out where the extra 2 has come from.
48. ### Math

578 of 850 employees work directly with guests what percentage of employees work directly with guests
49. ### AP calc

If the work required to stretch a spring 2 ft beyond its natural length is 6 ft-lb, how much work is needed to stretch it 18 in. beyond its natural length?
50. ### math

Fifteen people working at the same rate would complete some work in 10 days. How many days would 6 people need to complete the same work?
51. ### Calculus

If the work required to stretch a spring 1 ft beyond its natural length is 6 ft-lb, how much work is needed to stretch it 6 in. beyond its natural length?
52. ### geometry

A scale for a scale drawing is 10 cm:1 mm. Which is larger, the actual object or the scale drawing? Show work. --I understand that the answer is 100 times larger since 10mm equals 1cm. BUT how do I show the work of how this is solved? THANK YOU!
53. ### Precalculus with Trigonometry

Calculate the work done by gravity as a 10 kg object is moved from point A = (0,0,0) to point B = (1,2,0). We are given s = (x sub f - x sub I)x(hat) + (y sub f - y sub I)y(hat) + (z sub f - z sub I)z(hat). Sorry if that doesn't make sense. I think I have to plug in the ...
54. ### Physics/Math

A can of sardines is made to move along an x axis from x1 = 0.2 m to x2 = 1.2 m by a force given by F = iF0exp(-0.4x), with x in meters and F0 = 4.5 N. (Here exp is the exponential function.) How much work is done on the can by the force? Work is the integral of force x ...
55. ### trigonometry

1.if 2^x+2^y=2^(x+y) then dy/dx is equal to what? 2.If x.root(1+y)+y.root(1+x)=0 then dy/dx is equal to what? 3.Sin[(1/2)cos^-1(4/5)] is equal to what? 4.check the continuity of function f(x)=2x+3 at x=1. 5.check the continuity of the function F(x)={e^x - 1 -x ; x not equal to...
56. ### Grammar ~CHECK MY WORK PLEASE~

THE STARS NEXT TO IT ARE MY ANSWERS!! Select the answer that correctly identifies the part of speech of the italicized word or words in each sentence below. The words are with all big letters. YET, OH, SUDDENLY, BEFORE, THROUGH, OUTSIDE 1) The movie was wonderful, YET it was ...
57. ### trig

Two office towers are 43m apart. From the top of the shorter tower, the angle of elevation to the top of the taller tower is 26o while the angle of depression to the base is 51o. Determine the height of each tower and round your answers to one decimal place.
58. ### English

please check this for me thanks this my draft now I think that I can turn in more than one draft but do you really do that. 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 are working ...

please check my math!! THANKS SO MUCH 1. Identify the decimal And simplified fractional form of 80%. A. 0.8 and 3/5 B. 0.8 and 4/5(I PICK THIS) C. 0.08 and 3/5 D. 0.08 and 4/5 2.A baseball team wins 45% of its games. What fraction of games does it win? A. 8/20 B. 9/25 C. 9/20(...
60. ### science

Mrs leuenberger ran the same marathon but since her husband was hunting and she couldn"t find a babysitter she had to carrY her two daughter in her arms they weighs 40pounds and 55 pounds mrs leuenberger weights 145pound (butyou didn't hear that from me) How much work and ...
61. ### Art

1. This is where an interior designer does most of her work. in a factory at the client's home in an office <<<<<<<<< in a studio 2. When looking at fabrics, an interior designer will focus on these characteristics. shape and form space and color ...
62. ### Math

A tank has cross-sections in the form of isosceles triangels, vertex down. The top of the tank is 6ft wide, its height is 4ft, and its length is 10ft. find the work in pumping all the water to the top of the tank. (weight of water is 62.4 pounds per cubic feet) here is my ...
63. ### History

How does the ROman empire work? http://encarta.msn.com/encyclopedia_1741502785/Roman_Empire.html It worked for several centuries, but not anymore. Recommended reading (or viewing): I, Claudius. The HBO Series "Rome" makes a watchable soap opera out of the BC period of the ...
64. ### Physics

The earth rotates once per day about an axis passing through the north and south poles, an axis that is perpendicular to the plane of the equator. (a) Assuming the earth is a sphere with a radius of 6.38 106 m, determine the speed of a person situated at the equator. My ...
65. ### sociolinguistics-one more question

i forgot to ask one more thing..what is a regional dialect?i can't find anything about that A regional dialect is the use of certain words and accents peculiar to a given region. Y'all, for instance, marks a southern U.S. speaker. The pronunciation of some words such as the ...
66. ### English

Evaluate which of the following is the best example of a summary. A.In Goldilocks and the Three Bears, a character named Goldilocks sneaks into a home owned by bears. She eats a bowl of porridge and falls asleep in the house. When the bears return, Goldilocks awakens. ...
67. ### Math 2

You should make two selections from the list below. Which two of the four equations represents parallel lines? 2x - 3y = -10 6x - 9y = 15 3x + 2y = 10 9x + 6y = 30 i think it's the second one Parallel lines have the same slope. Rework your equations to be in the form y=mx + b ...
68. ### physics

A rescue helicopter lifts a 85.8-kg person straight up by means of a cable. The person has an upward acceleration of 0.643 m/s2 and is lifted from rest through a distance of 13.1 m. (a) What is the tension in the cable? How much work is done by (b) the tension in the cable and...
69. ### Algebra 1 (Reiny)

How am I supposed to solve and graph this? "Linda works at a pharmacy for \$15 an hour. She also babysits for \$10 an hour. Linda needs to earn at least \$90 per week, but she does not want to work more than 20 hours per week. Show and describe the number of hours Linda could ...
70. ### physics

A rescue helicopter lifts a 85.2-kg person straight up by means of a cable. The person has an upward acceleration of 0.764 m/s2 and is lifted from rest through a distance of 12.5 m. (a) What is the tension in the cable? How much work is done by (b) the tension in the cable and...
71. ### Physics

One of the most powerful cranes in the world, operating in Switzerland, can slowly raise a load of 6000 tonne to a height of 12 m. (1 tonne = 1000 kg) The acceleration of gravity is 9.81 m/s2 . How much work is done by the crane? Answer in units of MJ I found it by using Work...
72. ### Math

The current, I, in amperes, for an electric circuit is given by the formula I=4.3sin120(pi)t, where t is time, in seconds. a)At what time is the current at its max volume? How does your understanding of co terminal angles help in your solution? b)What time is the current at ...
73. ### Thermodynamics

A closed cycle gas turbine unit operating with max. And min. Temp. Of 760 and 20 Celsius deg has a pressure ratio of 7/1. Calculate the thermal efficiency and work ratio? Ans = 42.7 % , 0.505 My answers are : Efficiency 42.7 % which is correct.. but work ratio = 1.977. T1 and ...
74. ### Ed Tech @Ms.Sue

Check my answers please Ms.Sue 1.Which of the following is and example of print media? A. a blog B. a newspaper** C. a magazine's website D. all of the above 2.Which of the following is an example of public service announcement, or PSA? A. a commercial advertising an unscented...
75. ### algebra

i need help finding the base. this is the equation i got after work it out halfway. 42/h+h+sqroot(42/h)^2+h^2=20 ft how can i find B & H. How should i go about. Thanks. Isnt the sqrt of (42/h)^2 just 42/h ? Then, multipy both sides of the equation by h, that gives you a third ...
76. ### trig

If sin 2 theta = (2/5) in Quadrant 2, find sin theta, cos theta, tan theta, and draw triangle theta.
77. ### Trig

Write the following in terms of sin(θ) and cos(θ); then simplify if possible. csc(θ) - cot(θ)cos(θ) =
78. ### Accounting: Lock Box System

What minimum reduction in the time to collect and process each check is needed to justify use of the lock box system? If 400 payments per day, 2,000 average payment size, Bank charge \$.40 per check and interest rate is .015 per day. The answer depends on the value of time. For...
79. ### Physics

I don't know where to start with this one. "Find the work done accelerating a 2 kg box from 2m/s to 3 m/s." Can't find acceleration because I don't know time. In fact, I don't see how any of the kinematic equations can help me out to find either distance or acceleration so ...
80. ### physics

A block of mass 2.50 kg is pushed 2.40 m along a frictionless horizontal table by a constant 14.0 N force directed 25.0° below the horizontal. (a) Determine the work done by the applied force. 1 J (b) Determine the work done by the normal force exerted by the table.
81. ### Trig

Your school is getting a 10,000 seat stadium to hold spectators for your home football and baseball games. For each row of seats, which rise like stairs, the dimensions are 30 inches wide and 12 inches deep. What is the pitch(angle) by which the rows of seats rise from the ...
82. ### trig

An advertising blimps hovers over stadium at the altitude of 152 m.the pilot sites a tennis court at in 80 degree angle of depression. Find the ground distance in the straight line between the stadium and the tennis court. (note: in an exercise like this one, and answers ...
83. ### Trig

a boeing 747 jet maintains an airspeed of 650 miles per hours in a southwesterly direction. the velocity of the jet stream is a constant 80 miles per hour from the west. find the actual speed and direction of the aircraft. how do i set this up? can anyone walk me through the ...
84. ### trig

An advertising blimps hovers over stadium at the altitude of 152 m.the pilot sites a tennis court at in 80 degree angle of depression. Find the ground distance in the straight line between the stadium and the tennis court. (note: in an exercise like this one, and answers ...
85. ### Math

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

Which of the following does NOT accurately describe the informal economy? A. The majority of women's work occurs in the informal economy.********* B. In-kind payments are an important aspect of the informal economy. C. Remittances sent by migrant workers to their home ...

please check these answers 1.D or A 2.C 3.B 1.which would you measure in meters? A.the length of a pencil B.the capacity of a cup C.the mass of a puppy D.the length of a car 2.which would you measure in kilograms? A.the mass of a butterfly B.the capacity of a bottle C.the mass...
88. ### Physics

Bill is moving a crate of mass 35 kg up a ramp that forms a 25 degree angle with the horizontal to a height of 5 m. A) If the ramp is frictionless, how much work must Bill do in pushing the crate to the top? B) How much work does gravity do as Bill pushes the crate up the ramp?
89. ### MATH

Suppose that you work at the Peacock Blue store for 40 hours over five days at a rate of \$9.25/hour. You then quit your job. Deductions are FICA (7.65%), federal withholding (12%), and state withholding (8%). Your expenses are transportation at \$5.25/day, lunch at \$3.85/day, ...
90. ### AP Physics

Hello given that I person 65 kg takes 4.5 s to climb a flight of stairs that is 5.5 m my question is well I was asked to solve for the work and W=fd and in this case f is equal to the normal force correct? Just take the opposite of mg??????? Also I'm asked to solve for PE and ...
91. ### English

Can you please tell me if the following expressions are possible? 1) Would it be all right with you if I got my book from the other room? I left it in my backpack. 2) Can you wipe the blackboard off? 3) You should return the book to the library in two week's time. 4) Can you ...

please check my answers and thanks have a nice day. 2.which of the following ratios is equivalent to 5/20 A.1/4(I PICKED THIS) B.1/5 C.20/100 D.2/5 3.which of the following ratios is ((NOT)) equivalent to 4/8? A.1/2 B.2/4 C.20/45(I PICKED THIS) D.12/24 4.which of the following...
93. ### trig

Choose the percent increase or decrease for the before and after measurements: 12 (before) and 12 (after) a) not given b) increase of 30% c) decrease of 25% d) increase of 25%
94. ### maths trig need help

show that sinx/(1-cotx)+cosx/(1-sinx)=sinx+cosx thanks
95. ### trig

if tan theta=7/24 and sin theta is greater than 0 what is the exact value of sin theta
96. ### Trig

What is the value of tan⁡x given that sin⁡x+cos⁡x=1/5 and π/2<x<π ?
97. ### Trig

Find the other five trigonometric ratios of theta. cos theta=7/20 cos theta=1/5
98. ### calculus

A bucket that weighs 4 lb and a rope of negligible weight are used to draw water from a well that is 70 ft deep. The bucket is filled with 44 lb of water and is pulled up at a rate of 2 ft/s, but water leaks out of a hole in the bucket at a rate of 0.2 lb/s. Find the work done...
99. ### Pre-Cal/Trig

Explain how to solve the following question. Surveying: From a point A hat is 10 meters above level ground, the angle of elevation of the top of a building is 42 degrees and the angle of depression of the base of the building is 8 degrees. Approximate the height of the building.
100. ### Written Communication

How would you approach creating a negative message for a superior (such as a menager at work or an instructor) versus creating a message for a colleague, subordinate, or fellow student. The basic difference to me is that you cant afford to tell a manager at work that she is ...