# Trig check my work please?

89,108 results, page 29

### trig

y=7sin20degrees/5

### trig

50 feet

### Trig

Solve 5^2x -4(5^x)=12

### trig

8cos6xsin6x

### Trig

cos(3x)=-1

### Trig

4sin^(2)x-3=0

### trig

What is cosx=1/2?

### trig

1-2sin^2(2x)

### algebra 2/trig

x+5 1 ------- - 1= ------- x^2-2x x^2-2x

### alg/trig

9/x + 9/x-2= 12

### trig

proof that (m+n)^2/3+(m-n)^2/3=2a^2/3

### trig

y= 3 cos(x+pi)-3

### Trig

cos 13 pi = ?

### trig

sin^4x

### Physics please check

Please tell me where i went wrong. During an all-night cram session, a student heats up a one-half liter (0.50 10-3 m3) glass (Pyrex) beaker of cold coffee. Initially, the temperature is 19°C, and the beaker is filled to the brim. A short time later when the student returns, ...

### Algebra Work Check

1. 5√6 * 1/6√216 5/6 * √1296 5/6 * √144 * √9 = 30 2. -9√28a^2 * 1/3√63a -3√1764a^3 -3√49a^2 * √36a -3*7a*6√a = -126a√a

### Please check my work!

I try to write a summary for Mañana de Sol. So, can anyone please check my grammar and vocabulary? Thank you! “Mañana de Sol” dos desconocidos se encuetran en el parque y, aunque al comienzo no se dan muy bién, terminan por siendo amigos. Los dos personajes, que ya ...

### math

A firm advertises for workers to address envelopes. Priscilla says she will work 100 hours. Herb will work for 80 hours. If each can address 10,000 envelopes in the time they work, how long would it take them to address 10,000 envelopes if they work together? i am lost, can ...

### MATH please help

Out of 42 kids in a class twice as many failed Ela as math,4 failed both. If 7 failed neither, find how many failed each subject. Please help and show work it would be great thanks i really need help thanks

### Reference Letter Updated

I have to imagine myself as an adult who knows me as a student.Then I have to create a made up letter of reference for myself based on what I hope someone would honestly be able to write about me in the future. SO basically Im that teacher.. Paragraph 1. In this paragraph, ...

### Math Please check

The electricity meter on Donna's house read 71,236.4 kwh at the beginning of March and 73,196.2 kwh at the end of March. She pays 7.4 per kwh. What is the amount of her electricity bill for March? Round to the nearest cent. I came up with $145.03 Would you please check to make...

### Trig

prove sin(α+β)sin(α-β)=cos^2β-cos^2α please help... this is the only one I didn't understand out of all my homework...

### English

1. My father goes to work by car. 2. My father goes to work by his car. 3. My father goes to work in his car. (Which one is grammatical?) English - Jen, Tuesday, May 18, 2010 at 11:11pm I would say "my father drives his car to work". 1 is probably the most acceptable of those ...

### Language arts: check my answers

For questions 7–15, rewrite each sentence, adding commas where needed. (7) While I was researching skateboards I found an interesting old newspaper story. (8) In the June 29 1999 edition of the Mercury there was an article on skateboarding. (9) Some scientists in San ...

### MATHS

A and B can do a piece of work in 10 days, B and C in 15 days, A and C in 12 days. A,B and C work together to finish the work. If they are paid $1500, how should the money be divided?

### SCIENCE help?

I did this question in this way but 2 of them correct ,is anyone can help me with this question ,many thanks. Choose the words or phrases that most accurately complete the sentences below. Drag and drop your choices into their appropriate spaces. One of the most effective ...

### 7th grade marking period project

I need help im a 7th grader that has to do a project. They want me to decide what the scale wil be for oyur scale drawing or model? use a unit of measurement that will be easy for you to work with? write thescale factor down. Show the work for converting the actual dimensions ...

### English

Could you please check these two statements, please? 1) At midday I went to my mother-in-law's (house) and I had lunch there. We had seven different kinds of starters. 2) The ones I liked most were breaded artichokes and watercress with cherry tomatoes and quail eggs. The one ...

### Math for 7th graders///////

In a survey 182 people said they liked chocolate ice cream the best. This is 35% of all the people surveyed. How many people were surveyed??? Please tell me the answer and please show your work so I could understand how you figured it out!???

### Science 8A Check Answers

Will someone please check my answers as I need lots of help in science. 1. Which of the following is an example of matter? A. leaves B. shadow C. light from the sun* D. sound 2. Which of the following is an example of a chemical property of matter? A. ability to melt B. ...

### Geometery

A water storage tank is shaped like a circular cylinder with half of a sphere at each end. Find the volume of the tank if the cylindrical section is 100 cm long with a 40cm diameter. Use 3.14 for ~~ Be sure to round the final answer to two decimal places. (Here are my choices ...

### English

1) If you listen to a normal conversation in English you will realise that large sections fall into (??) perfect iambs. An iamb is the most common stress pattern in English and consists of (is made up of??) an unstressed syllable followed by a stressed one. 2)Do you know where...

### help ms.sue

whats one opinion about leukemia.i all ready wrote a fact but i baerly know anything about it so i can not write a opinion please.this is just home work ? please help me ms.sue from, priscilla perez

### Chemistry

1. net ionic equation for the reaction between silver nitrate and the arsenate ion I got: 3Ag (+) + AsO4 ---> Ag3AsO4 2. net ionic equation for the precipitation of copper hexacyanoferrate (II). I got: 2Cu (2+) + [Fe(CN)6] ---> Cu2 [Fe(CN6)] Can someone please check and ...

### English

Can you please check these last sentences,please? 1) How do you pronounce the word UNO (United Nations Organization)? 2) Unfortunately we couldn't find any vacancy for a cabin for the required period. 3) Where did he get inspiration for his book? 4) Who did he get inspiration ...

### microeconomics, please help me solve .

The majority of the world’s diamonds comes from Country A and Country B. Suppose that the marginal cost of mining a diamond is $1,000 per diamond and that the demand schedule for diamonds is as follows: price quantity 6,000 5,500 5,000 6,500 4,000 7,000 3,000 8,000 2,000 9,...

### Physics please help

Starting from rest, a 5.00 kg block slides 2.50 m down a rough 30.0 degree incline. The coefficient of kinetic friction between block and the incline is .436. Determine the work done by the friction force between block and incline and the work done on the normal force?

### Quick French

Les amies sont au salon. Elles ont une télé. Elles vont regarder un film. Vous etes au café. Vous avez 20 euros. Vous allez aller dans les magasins. Please check these 2. If there is anything wrong with them, please tell me so I can correct. Merci

### business

Out of the types of businesses (sole proprietorship, partnership, and corporation), which has the easiest time obtaining money to expand their business. Why? Please note that we don't do students' homework for them. Once you have come up with a response to these questions, ...

### english

. Identify which one of the following sentences contains an unnecessary comma. Please correct the error and explain why the correction is necessary. a. I must have been completely absorbed in my work, because I totally forgot about the meeting. b. Because I became completely ...

### Eng095

Identify which one of the following sentences contains an unnecessary comma. Please correct the error and explain why the correction is necessary. A. I must have been completely absorbed in my work, because I totally forgot about the meeting. B. Because I became completely ...

### english

Identify which one of the following sentences contains an unnecessary comma. Please correct the error and explain why the correction is necessary. a. I must have been completely absorbed in my work, because I totally forgot about the meeting. b. Because I became completely ...

### Physics

A factory worker pushes a 29.2kg crate a distance of 4.1m along a level floor at constant velocity by pushing downward at an angle of 28 degrees below the horizontal. The coefficient of kinetic friction between the crate and floor is 0.25. (a) What magnitude of force must the ...

### JOB

WHY CAN`T KIDS WORK Kids do a lot of work. They do their school work and help with chores around the home. Some kids who live on farms also help their families with the farm work. Some teenagers earn money by baby sitting or doing chores for other people. But kids can't get ...

### Chemistry

Hello. My teacher gave us a worksheet today she tried to explain it but I still don't understand it can someone help me please? 1) A jar is filled with mercury and has a volume of 500.mL. What is the mass of mercury in the jar? Show your work for credit. 2) GE's light bulb ...

### sentences

Please note that we don't do students' homework for them. Once YOU have tried to write a sentence for your assignment, please re-post. Then someone here will be happy to give you feedback. =) who can you put a sentence that has including eveyone including everyone can you find...

### English

PLease check my answer thanks :) One purpose of a summary is to include your own opinion on the topic or to save the reader time I picked#1

### Law and Ethics in Med

PLease check my answer thanks :) Roe V Wade is based on what the fetus's right to be born after the dirst trimester

### Law and Ethics

please check my answer thanks :) If a child is at risk for abuse or neglect the state will use Res ipsa loquitor. I said yes

### biology

Can someone please check this defintion. What else can I put? Mutation=change to the base pair sequence of the genetic material of an organism What is 'Heredity'?

### physics: relativity

I think I can rearrange the Lorentz contraction equation, solving for v using: v=sqrt[1-(L/Lo)^2] x c^2 Would someone check my thinking please? Thanks

### math

I need to check my answer... please help... the prime factorization in powers of primes of the number: 16380. 5460 to the power of three is this correct

### algebra 1

write an equation in slope-intercept form of the line that passes through the points: 1. (-5,3), (4,-5) 2. (-1/2,-1), (3,9/2) _____ my answers: 1. y=-8/9x-5 2. y=3/7x+5/2 please check.. thnx

### math-PLEASE CHECK

using the pythagorean theorum you have a right circular cone with a radius of 3 and height of 6 is this how you would figure this out c^2=3^2+6^2 c^2=9+36 c^2=45 c=6.7

### chem can u check answer please

what is the hydrogen ion concentration of an aqueous solution with a pOH of 9.262? I got 5.47X 10 ^-10 is this correct? Thanks Andy

### English

Can you check this sentence, please? 1) The subtitle to the novel is emblematic of Frankenstein's being an overreacher. He has to keep his face covered because of his horrible scars.

### MATH(please check only)

Number of Cans of Corn Cost 3 $1.95 5 $ 3.25 6 $3.90 9 $5.85 Write an equation to represent the data how do i do that I think the answer is 0.65n = c

### Physics

Hi, Which correctly expresses the relationship between wavelength (L), speed (V) and perios (T) of a sinusodial wavform ? a) L = T/V b) L= 2fxV/ T c) L= 1 / V x T D) L= V/T e) L = V x T f) L= V x T/ 2f I feel it is option (d) ..please check for me .. and thanx

### Art

Thank you, Writeacher. Could you please check if everything is possible? 1) What does Pamela recount to her mum in letter XV? What does Mr B accuse her of and how does she apologize herself to him (or justify her behaviour)?

### Math

Please check my answers, which are at the bottom of each question...:) remove brackets a) 4(a+3) d) 5(2+d) 4a+12 10+5d b) 3(2b+2) e) a(3a-6) 6b+2 4a-6a c) 7(3c-1) f) 2(x+y) 21c-7 2x+2y simplify the following: a) a+a+a+a d) a2 xa3 4a a5 b) a x a x a e) 3y+6z+2y-4z a3 5y+10z OR ...

### Algebra 2

Can someone please check my answers? The question is: Write an equation for the perpendicular bisector of the line segment joining the two points. (-5,6),(1,8)= y=-3x+1 (1,4),(6,-6)= y=(1/2)x-(3/4) (5,10),(10,7)= y=(5/3)x-(17/3)

### math (check please)

find the volume of a square pyramid with a base length of 9cm and a height of 4cm. ANSWER: 108 cm^3 (is it right?)

### Science (Please check!)

this device is a burner from an electric stove. it is used to transfer heat to a pot by a. conduction b. convection c. radiation I think c.

### Math! Please check!

Okay, this is the link but without the spacing:::: h t t p : / / t a k e e x a m . n e x t . e c o l l e g e . c o m / e c / c o u r s e s /4 6 1 2 2 / C R S - M T H 2 0 3 A- 3 9 5 0 2 5 8 / G M T _ Q 1 1 _ 2 . b m p What is point P in triangle XYZ called? A- centroid B- ...

### Science

which of the following helps ensure a groups access to resources it needs for survival? My answer is D. Territorial Behavior. Please check if this is right?..

### CHECK MY ALGEBRA 2

Write an equation that would have a hole at x = 4 and a vertical asympote at x = -2. My answer was f(x)= (x-4)/(x+2) If it is not correct can someone please help me solve it and explain it to me? Thanks!

### calculus

How do you find: the Integral of arcsin(1 / (sqrt x^2 - 1) ) dx ?? (The integral of arcsin of one over the squareroot of x squared minus 1) So far, I've used trig integration to simplify down to arcsin(1/tanb) *secbtanb b is theta Then, I've used integration by parts. But i'm ...

### CHECK MY CHEMISTRY WORK PLEASE ASAP

1. You have been given a sample of unknown molarity. Calculate the molarity of a solution which has been prepared by dissolving 8.75 moles of sodium chloride in enough water to produce a solution of 6.22l. 2. You have a sample which consists of 428g sodium hydroxide (NaOH) ...

### Math - Help with radicals please

Please show work Simplify rational 1. 4√(a^6 b^13) / 4√(a^2b) 2.√(2x^3 / 49y^4) Add or Subtract 3. x√(75xy) - √(27x^3y) Multiply 4.(√(5) - 5) (2√(5) + 2) Rationalize the denominator 5. √(25x^5 / 3y^2) 6. 5 / 2-√(7)

### Please Help with Physics Problems???????

A 0.60 kg ladle sliding on a horizontal frictionless surface is attached to one end of a horizontal spring (k = 430 N/m) whose other end is fixed. The ladle has a kinetic energy of 8.6 J as it passes through its equilibrium position (the point at which the spring force is zero...

### Physics

A 4.00kg crate is slowly lifted to a height of 1.50m. a.How much work is done by the lifting force? b.against gravity? C.by gravity? a, Work done is m*g*height b. the work done is against gravity. c. Because the box is lifted, the work done by gravity is negative (-mgh)

### mathematics-Rate

4 men and 10 women can cut a field in 5hrs. If the men work at 5/4 the rate at which the women work. How many men will be needed to cut the field in 3hrs. #Please i need the detail explanation #thanks

### Health (Ms. Sue Check Please)

1.Kori's doctor says her muscular strength and endurance are excellent, but he worries about Kori's cardiovascular health. Kori enjoys weightlifting, softball, basketball, and bowling. Increasing the frequency of which activity will best improve Kori's cardiovascular endurance...

### math

if f(x= 5x - 1 find f(a-2) Please show me the work so I can understand how to arrive at the solution. Thank you. f(a-2)=5(a-2)-1

### Algebra 1

Find the slope. -2x-9y=-29 Can you please work it out for me so I will know how to do the next one.

### Maths

This is part of the indices section, how do you work it out please: (8/27) to the power of 2/3

### accounting

How does delay payment of liabilities work? Please give an example too.

### math

true or false: [-8]+[3]=[-8+3] show work or explain answer please.

### Algebra

1). 3x + 7 = 9 2). -3(x + 5) + 3 = 12 Can you also please show the work so that I may have a better understanding.

### Algebra

6000 = 200(t) Please help me solve this equation, and show the work... Thank you!!!

### math

(1/x - 3/x+4) / (1/x square - 16) please help me with this question if you can show the work or explain how to solve.

### Algebra 2 URGENT

Simplify: 2x+5/4x^2+2x-5/10x Please Show All Work!

### Algebra 2 URGENT

Simplify: 2x+5/4x^2+2x-5/10x Please Show All Work!

### algebra

perform the product in simplified form please show the work. (2x+1)(3x-2)

### algebra 2

please help. Simplify the square root of 7/8y and show all work

### algebra

y^2-4y+3/y^2*4y+12/y^2-2y+1 2y(2y+3)/ I need some help with this problem please I can not seem to work it right.

### math

Please guide me in factoring completely while showing work ty -8x^3+4x^2-2x

### Maths

solve by Gauss elimination x+y-z=2 -x+3y +z=3 4x-y+3z= 5 show work for each step please

### science

can anyone give me 10 examples or energy interconversions and how they work please thankyou.

### algebra

convert to a logarithmic equation:8^y=4096 Please show work.

### Algebra 1

How do I simplify 5(-c+3a)-c(2c+1)? Show the work not just the answer so I actually get how to do it please.

### Maths

Can someone factorise 25x^2-25xy+6y^2 show your work please

### PHYSICS !!!!!!!!!!!!!!!!!!!!!!!!!!!!

a wave has a frequency of 2 Hz. find its period ? please show work.....

### calculus

Find the derivative of the function. 1. 2x+5/3x-2 2. (1-x)(1+x^2)^-1 Please show work. TYVM. :)

### algebra

Given f(x) and g(x) below, find: (a) f+ g (b) f- g (c) f*g (d)f/g Please show all of your work. f(x) = ãx g(x) = 6x-5

### algebra

can you please help me with this so that i can do my other problems simplify and show alll work -4x^2-3x-(x-x^2+3)

### algebra

Can someone simplify this equation: -6(5-2z)+5z=8z-3(16-3z) Please help, show all your work.

### precalculus

Given f(x) and g(x) below, find: (a) f + g (b) f – g (c)f*g(d)f/g Please show all of your work. f(x) = 5x^2-5 g(x) = x – 7

### algebra

y=1/4x-1 1/2y=x-2 This is systems of Equations please work out the problem and explain it