# Trig check my work please?

87,593 results, page 79

### English

I used your synonym link. I included the words I found in parentheses. Can you check if they are appropriate, please? Thank you. ) The festival is held in Park City, Utah and represents one of the world’s premier showcases (synonym: main settings?) for new, independently ...

### Math (Trig Question)

OK, I've been stuck on this question for like.. an hour. Prove how cos 2x = 1. Thanks for the help! Nvm... lol I got it. There was a typo. Sorry!

### pre calc

express the followinf trig functions in terms of an acute angle. (a) cos 143 degrees (b) tan 192 degrees

### trig

Is y equal to cotx, tanx, cosx, or sinx if its graph is periodic with a period of 2pi, an amplitude equal to 1, and it passes through the origin?

### trig.

A 2000 pound car is parked on a street that make an angle of 12 degrees with the horizontal figure Find the force perpendicular to the street.

### Math Trig

Find the Cartesian form of the parametric equation. x = (2a)(cot T) y = (2a)(sin^2 T) how? lol here's what i got y = (sin^2 T) y = (2a)y^2 y = 2a then? do the same for X? i'm stuck there

### trig

A car travels around a circular track at 185 miles per hour. Is this a linear velocity or an angular velocity? Explain.

### trig

a vertical pole 3 meters tall casts a shadow 1.8 meters long. what is the angle of the elevation of rhe sun to the nearest minute?

### Trig/Math

Write the equation of the cosine function with an amplitude of 1, a period of 3pi/7, a phase shift of -pi/5, and a vertical shift of 2 units down.

### trig

{Given: cos(A)=\frac: sqrt{203}/{18} {Find: tan(A) Find the positive value of the above in simplest radical form.

### trig

draw the graph of 4sin(x+30) and 2+tanx for values of x from 0 degree to 360degree and obtain the solution within the range of the equation 4sin(x+30)-tan x=2

### trig

Solve the equation for cos(3theta/2).tan(3theta/2)for greater than or egual to zero but less than 2pi. Write your answer as a multiple of pi.

### trig

Suppose that the point P(13,-30) is on the terminal side of the angle theta in standard position. What is sin(theta)? Give your answer to the nearest thousandth

### trig

If θ is an angle in standard position and its terminal side passes through the point (20,-21), find the exact value of sec(θ).

### Trig

what is the amplitude, period, phase shift, and vertical shift of each equation? 1. y= A cos(B(x-3))+4 2. y=-2sin(2piX/3) 3. y=4cos(3pi(x+3)) 4. y= -3cos(2(x-pi/4))+0.4 thank you so much!

### algebra-trig help asap

An isosceles triangle has a base 36 cm long and a base of 65 degrees. Find its perimeter. I'm not sure if this is right but my answer is 1250.4 in^2

### algebra-trig help asap

Write an equation I'm not sure how to do this though. The sine of x with an amplitude of 4, period of 3(pie) and phase shift to the right of pie/4

### trig

A tree casts a shadow of 27 meters when the angle of elevation of the sun is 26 degrees. Find the height of the tree to the nearest meter. a. 24 m b. 15 m c. 320 m d. 13 m

### trig

two intersecting sides are 250ft and 170ft, angle between is 55 degrees. use the 250ft side as the base, what is the height of the triangle

### trig

Given BC = 53 cm, BD = 62 cm, CD = 80 cm, ABC = 53°, and ACB = 66°, find the following. (Round your answers to the nearest whole number.) (a) the length of the chainstay, AC AC = cm (b) BCD BCD = °

### Trig

Three circles with radii of 4, 5, and 6 cm, respectively, are tangent to each other externally. Find the angles of the triangle whose vertexes are the centers of the circles.

### Trig

Solve the multiple-angle equation. (Enter your answers as a comma-separated list. Let n be any integer. Enter your response in radians.) sec 9x = 2

### (pls help) Trig

point P and Q are respectively 24m north and 7m east of point R. What is bearing of Q and P to the nearest whole degree.(a)52(b)164(c)134(d)159

### trig

if 60 m of fencing is available for a rectangular garden, one side of which is against a barn, what areb the dimensions of the garden that will give the maximum area?

### Trig Identities

Explain why Sin of theta= -The square root of 1-cos^2 theta is not an identity, using either graphical or numerical reasoning.

### trig

Given angle x, where 0 <= x < 360 (degrees), cos(x) is equal to a unique value. Determine the value of to the nearest degree. Justify your answer.

### trig

Given angle x, where 0 <= x < 360 (degrees), cos(x) is equal to a unique value. Determine the value of to the nearest degree. Justify your answer.

### trig

Given angle x, where 0 <= x < 360 (degrees), cos(x) is equal to a unique value. Determine the value of to the nearest degree. Justify your answer.

### Trig. Math

A circle of radius 2 inscribed in a right triangle. Find the simplest expression possible for the triangle's area as a function of its hypotenuse.

### Trig

Use the given information to evaluate sin (a-b). Exact answers. No decimals. Sin a = -7/25, cot b = 8/15; neither a nor b are in quadrant III.

### Trig

Use the given information to evaluate sin (a-b). Exact answers. No decimals. Sin a = -7/25, cot b = 8/15; neither a nor b are in quadrant III.

### math

Use Green's Theorem to evaluate F(x, y) = y cos x − xy sin x, xy + x cos x , C is the triangle from (0, 0) to (0, 4) to (2, 0) to (0, 0) I kind of understand how to do this , but I am having trouble with the trig

### trig

I need help setting this problem up. A force of 36lb is required to hold a 70lb toolbox on an incline. What angle does the incline make with the horizontal?

### trig

1. The sides of a triangle, in centimetres, are given by 3n-4, 3n+9, 4n+5. Draw a diagram to show the information. If the perimeter of the triangle is 114 cm, find the length of each side.

### algebra 2 and trig

The scores on a chemistry test are normally distributed. Approximately 95 percent of the scores fell between 78 and 92. What is the standard deviation for this distribution?

### Trig

Find the exact value of csc 4pi/3 What I have determined thus far: 4pi/3 = 60 degrees sin = square root of 3/2

### Trig

a road is inclined at an angle of 45degrees. After driving 300 feet along this road, find the driver's increase in altitude.

### Precalculus

Rewrite as single trig function: sin(8x)cosx-cos(8x)sinx I know I can simplify sin(8x) into 4sin2xcos2xcos4x, but I'm stuck after that

### Intro to Trig

Which of the following best corresponds to the x-value where the function f(x)=cos x is a minimum in the interval x = [25,30]? A) 25.1 B)26.7 C)28.3 D)29.8 Can someone show me how to solve this step by step? Thanks :)

### Trig help

Find the cos(Θ) of an angle in standard position if the terminal side passes through the point (4, -8). -2 -2/sqrt5 1/sqrt5 2 I think it is C but I am not so sure.

### Trig

Find the derivative. {sqrt(x+8)}*(x^2+20x) (x+8)^1/2(2x+20) minus (1/2)(x+8)^-1/2(x^2+20x) I'm not feeling confident I am on the right track and I have a quiz tomorrow over this.

### trig

If a triangle has an area of 50 square units and has angles that measure 15, 65, and 100 degress, find the length of the shortest side to the nearest tenth. Do not round till the final answer.

### trig

If a triangle has an area of 50 square units and has angles that measure 15, 65, and 100 degress, find the length of the shortest side to the nearest tenth. Do not round till the final answer.

### trig

What is the shortest possible length of a triangle side facing an angle of 20 degrees, if one of the other sides is 5? (answer should be a decimal number, correct within 0.001)

### maths

in right angled triangle ABC, angleBis90 degree and C is an acute angle of60degree. Also sin m<C=c/b. Find the following trig ratios.(a)mBC/mAB (b)cosec30degree

### TRIG

Verify the following identity. 1) sin(x+y) __________ = tanx+tany cosxcosy 2) Write cos3x in terms of cosx I cannot figure out how to solve for identities they are so hard. Any help appreciated!:)

### trig

Simplify and write the trigonometric expression in terms of sine and cosine: cot(-x)cos(-x)+sin(-x)=-1/f(x)=f(x)=____________ I've tried everything, I think that the "-1/f(x)" part is screwing up my answer but I'm not sure what it's asking me to do with that?

### spanish

Estoy interesado en conocer gente Quiero ver y experimentar otras culturas. Quiero aprender otras culturas. Quiero descubrir nuevas comidas y las personas. Quiero ver cómo es la vida sobre. Estoy interesado en sacar fotos de otros del país. Quiero probar diferentes alimentas...

### algebra inequalities

can you check these tell if the number after the: color is a solution x < 7; 7 i say yes p > -3;3 i say yes k is greater than or equal to 5; 0 i say no 3z is less than or equal to 12;4 i say yes n - 5 > 3; 6 i say no 2g + 8 is geater than or equal to 3;-1 i say yes ...

### math

It takes Bill 24 minutes to type and spell check 10 pages. Find how many pages he can type and spell check in 5.5 hours. Round to the nearest whole number if necessary. A. 55 pages B. 138 pages C. 792 pages D. 229 pages

### Physical Science

How much work is needed to raise a 110-kg load of bricks 12 m above the ground to being under construction? work in joules= weight*height where weight is mass*9.8m/s^2

### Algebra 2 help

1. (3ã6 * 4ã6)^12 Answer :6^7 2. 3ã9 * 3ã6 / 6ã2 * 6ã4 Answer: 3 Can you guys show me how to work those? I got the answers from back of the book, but I have no idea how to work it. The number behind the square root sign is the nth.

### algebra

A survey of 2,000 people was given to find their mode of transportation to work each day. The pie chart below gives the results. Of the people surveyed, how many travel by bike to work?

### Intergrated science

I need help... I don't know where to begin to answer this question. We are working in force/work ok... This is the question: A pole vaulter weighing 175 lbs leaps 16 ft over a bar . How much work is done?

### science

how do you calculate the missing variable in work and power;example:you must exert a force of 4.5N on a book to slide it across a table .if you do 2.7J of work in the process,how far haveyou moved the book

### help asap please

GUIDELINE: Set achievable goals for your work unit. If I were going to set achievable goals they would be meet the deadline. Have the work be the best it can be. An example: Writing a research paper and the goals for it could be the following. To beat the deadline, to have the...

### chemistry

ho do you calculate final temperature? anyone please help thanks that's a little vague. Are you dealing with ideal gases? If so you would use the formula PV=nRT P = pressure V = volume of container n = moles (grams/molar mass) R = gas constant (0.0821) T = temperature sorry ...

### Math

please check my answer thanks :) How much money must be deposited now, at 6% interest compounded semiannually to yield an annuity payment of $4,000 at tha beginning of each six-month period,for a total of five years? Round your answer to the nearest cent. A. $38,120.80 B. $35,...

### spanish

"tengo que llevar un plato a la fiesta de Marta, pero no sé cocinar muy bien. ¿Qué debo hacer?" "Sugiero que _____ una enselada de frutas." a. prepares b. preparas c. preparabas d. preparo B i know i asked this before, but i forgot if Sra said it was correct or not please ...

### English

Could you please check these sentences, too? THank you. 1) I've just received an email from our national agency informing me that the deadline to apply to them for a preliminary visit to define the topic of our project was 18 November. What do you think we can do now? Do you ...

### English

Could you please check my sentences, please? Thank you, Writeacher. 1) You can't get out of it: you must confess that you have broken the vase. We were having dinner when the lights went out. 2) The teacher invited me to look up the unknown words in the dictionary. 3) Would ...

### chemistry- can you check my answers?

can you please check my answers?? 9. For the following reaction delta H=2816 kj. 6 CO2(g) + 6 H2O(l) -> C6H12O6(s) + 6O2(g) how is the equilibrium yeild of C6H12O6(s)affected by each of the following? a) increasing pressure of CO2 increase decrease no effect Answer: ...

### Geometry-Please check

I have two questions If a parallelogram is a rhombus, then the diagonals are congruent- I don't think so-they can bisect each other and are perpendicular, correct but not congruent Secondly, A kite is a quadrilateral that has exactly 2 pairs of consecutive congruent sides-I ...

### Foreign languages

Can you please check these questions, Witeacher? Thank you. 1) Focus on Chapter 10 of Stevenson's Dr. Jekyll and Mr. Hyde and describes how Dr. Jekyll manages to separate his two identities. 2) What kind of narrative technique does Stevenson adopt? 3) In what way are Dr. ...

### Chem Check Please!!!

A voltaic cell is constructed that uses the following reaction and operates at 298 K: 2 Al(s) + 3 Mn2+(aq) 2 Al3+(aq) + 3 Mn(s). What is the potential, E, of this cell when [Mn2+] = 0.10 M and [Al3+] = 1.5 M? Answer: The EMF of this cell under standard conditions is : +1.66 V...

### MATH!+ check please~ thanks in advance!

the equation 2x^2+ cy^2+Dx+Ey+f= 0 represent a conic. state the value(s) of C for which each of the following are possible: A circle: My answer: c= 2 an ellipse: My answer: c>0, cant equal 2 Parabola: My answer:c=0 a hyperbola: My answer: c<o ( any negative number) are ...

### HIPPA Law

At what point during the course of treatment of a new pt should the notice and disclosure of health info ,required under HIPPA be given and why ? Please check my answer. I think that it should happen before treatment begins. does anyone else agree or have any other thoughts

### Science 8th grade

Please check my answer thanks What's the potential benefit of administering CPR to a person whose heart has stopped beating? A. Prevent blood clots B Prevent permanent brain damage C Prevent pericardial effusion D Prevent heart failure I picked D

### Advanced Math

Can someone check these for me? Please? Use half-angle identity to find the exact value of cos165 degrees. (-1/2) sqrt(2+sqrt(3)) Write the equation 2x+3y-5=0 in normal form. (-2sqrt(13)/13)x- (3sqrt(13)/13)y+ (5 sqrt (13)/13) = 0 Find the distance between the lines with ...

### CHEMISTRY: DUE TONIGHT. CHECK MY ANSWER?

1. For the simple decomposition reaction below, rate = k[AB]2 and k = 0.40 L/mols. AB(g) A(g) + B(g) If the initial concentration of AB is 1.60 M, what is [AB] after 13.0 s? ANSWER: (.4)(13)=5.2 1/1.6=.625 5.2-.625=4.575 1/4.575= .2185 I tried .22 & .21. They are both wrong. I...

### Chemistry(please check, thank you!!)

Is this equation balanced? CoCl2(aq) + Na2CO3(aq) -> CoCO3(s) + 2NaCl(aq) I think that it is because there is 1 Co on the left and 1 on the right. There is 2 cl on the left and 2 on the right. 2 Na on the left and 2 on the right and 3 CO on left and on right. Am I correct...

### math

Winborne has 35 coins consisting of dimes and nickels. If the value of his coins is $3.30 then how many of each type does he have? Please help to check on correct answer my answer is 31 dimes and 3 nickels

### Algebra 1

1.) Which best describes a system of equations that has no solution? •consistent, independent •inconsistent, dependent •consistent, dependent •inconsistent* ANSWER: D Please check my answer, thank you!

### Ethics

describe the role civil disobedience played in the civil rights movement It was central. http://www.answers.com/civil%20disobedience <~~Be sure to scroll down and read Britannica's and other entries. Please note that we don't do students' homework for them. Once you have ...

### English/Lit

I posted this earlier and someone suggested google-I did research various sites but I was wondering if anyone could perhaps check my answers and see if they would be a correct analysis-thank you I have two questions I'm working on for home work-could you check my answers and ...

### Algebra II

Please help me out with this The numbers 1 through 50 are written with red marker on slips of paper while the numbers 51 through 100 are written with blue marker on slips of paper. All the papers are put into a bag and shuffled. One card is randomly selected. a. Find the ...

### Math

This is the same equation as before just with different numbers. y=yo + (vo sin Q) t - 1/2gt^2 This time the numbers are: 0 = 1.005 + (3.021 sin 30)t - 1/2(9.8)t^2 4.9t^2 - 1.5105 - 1.005 = 0 This is the part where I am stuck. Did I do this correctly? sin 30 = 0.50 X 3.021 = 1...

### math

I am a little confused on the first question of this problem could someone please check my answers and please explain why and what I need to do to get correct answer thank you Calculate the mean, and write this as a mixed fraction. 12,9,4,6,8,12,13,14,11,5,12,2,9,13 answer I ...

### math

From the following data calculate final balance and forward it in the pay stubs. Beginning balance $2000 Jan 2 Deposit $500 Jan 10 Check written to Alex company $600 Jan 16 Check written to Angels Company

### geometry

User: Courtney Thompson In Course: Geometry V8 ( 2167) Instructor: Tracie Morgan -------------------------------------------------------------------------------- WARNING: You must not leave this exam form! If you try to click back into this exam again prior to submitting, your...

### english

Good suggestion from Bob Pursley. Also, if you want someone to check your work, please be sure to re-post with the answers you've come up with. =) words that begin with IN a narrow strip ofwater which goes from a sea or lake into the land-I N _ _ T food or drink that is I N _ ...

### English

1. Take exercise on a regular basis, and you will be a happy person. 2. Earn a lot of money, and you will be a happy person. 3. Drive in the country, and you will be a happy person. 4. Play the violin, and you will be a happy person. 5. Play soccer with your friends, and you ...

### Physics (please check)

Please let me know if my answers are not correct/not thorough enough. 1) Q:What happens when the number of loops in the armature of a generator is increased? 1) A:More loops= more voltage _________________________ 2) Q: Why does a piece of iron behave like a temporary magnet ...

### Social Studies

Which statement explains why division of labor increases work productivity? 1. Employers can pay workers more money when they get more done. 2. Employers must fire some of their workers so fewer people have to get the work done. 3. Workers learn their jobs more quickly when ...

### bioethics

explain Dale Jamieson's "Denver Smog Argument" Is the argument good I couldn't find a copy of this work online. Please post your explanation of his argument and opinions about it. We'll be glad to critique your thinking.

### Math

Landon is working one plans for a 12-acre housing development. A park will cover 2 1/2 acres, and paved areas will take 1 3/4 acres. How many acres are left for home sites??? Please show work, for how you did it

### History of health care

Please check my answer thanks :) The American Association Of labor Legislation helped to Decrease public hospital costs or to implement fee schedules I said decrease public hospital costs

### language please check

1-the baby was the PRINCIPLE reason for his happiness 2-the jury heard only the PRINCIPLE facts 3-It's not the facts that upset me,it's the PRICIPALS of the case 4-his hay fever was the PRINCIPLE reason for his sneezing 5-she was a person of strong PRINCIPLE

### english

Please check the meaning: "Like a cat in a corn crib, the girl pup sneaked in from behind and sank her needlesharp teeth in the coon's back." Just the "like a cat in a corn crib" part. Thanks!

### Chemistry(Please check, thanks)

Which choice below has the highest standard molar entropy? SiCl4(s), CCl4(g), CCl4(l), Si(Cl4(l) I know that the gas state has the largest entropy so SiCl4(s) would have the highest. Is my answer correct? Thank you!!

### Grammar

Recent graduates often demonstrate poor writing skills, hiring managers say. Subjects is graduates Verb is often Object is skills Please check my answers for subject, verb and objects.

### math help please check my answer

A roofer is standing on the roof of a house 60 ft above the ground. His truck is parked 25 ft from the house. What is the angle of depression from the roofer to his truck? Round to the nearest whole degree. 22° 23° 67° 68° <my answer choice

### social studies

We were worked in all weathers. It was never too hot or too cold it could never rain blow hail or snow too hard for us to work in the field. Work work work The longest days were short for him and the shortest nights too long for him. Which statements best paraphrases the view ...

### 8th Grade Algebra: Answer Check #2

Add or Subtract (Radicals) { this means squared 1.3{2 + 4{2 Answer: 7{2 2. 8{3 + 3{3 Answer: 11{3 3. 7{5 - 3{5 Answer: 4{5 4. 8{2 - 5{2 Answer: 3{2 5. 6{x + 7{x Answer: 13{x 6. 9{y + 3{y Answer: 12{y Multiply 7. -3x^2(4x^2-3x-5) Answer: 12x^2 8.(3b+5)(b-3) Answer: 3b^2-4b-15 9...

### math

log4(x-3)=2 4^2=x-3 16=x-3 19=x Does this mean the solution would be x=19 or no solution? How would I check this to know if 19 is a solution. I know I plug it back in. Like so: log4(19-3)=2 4^2=19-3 16=16 Did i check correctly?

### Language Arts (Please Check)

1)Resilient people usually a)complain when they have bad luck b) bring good luck to others c)are able to deal with others** 2)when the someone refers to pausing to " enjoy the view of the trees and the flowers below," he really is talking about a) looking down at the view from...

### Language Arts

3. In "All Together Now," Jordan uses appeals to emotion and appeals to reason to try to persuade her readers that her views are important. In a paragraph, cite one example of each kind of appeal in her work. Then, explain whether you find Jordan's appeals convincing, ...

### calculus-can someone please help me with this ques

Given the following polynomial find, a. zeros and the multiplicity of each b. number of turning points c. end behavior f(x)=(x-1)(x-5) a. the multiplicity of (x-1)(x-5) x=1 and x=5----is this correct b. number of turning points I had f(x)-0 at turning points BUT my teacher ...

### testing and selection of dogs

please check this for me thanks you Which one of the following pups would be best suited for future protection training? A. A large pup that can intimidate criminals B. A pup that demonstrates a high degree of aggression C. A pup that's confident and comfortable with humans D...