Trig check my work please?

89,108 results, page 87

algerbra operations

How is doing operations (adding, subtracting, multiplying, and dividing) with rational expressions similar to or different from doing operations with fractions? Can understanding how to work with one kind of problem help understand how to work another type?

Trig

If cosx = 10/19 an pi < x < 2pi, find the exact value of cos x/2 Use the double angle formula. Cos 2Y= sin^2 Y - cos^2Y = 1-2Cos^2 Y. let y= x/2, and 2Y=x

Trig

Is this formula continous on the interval (-1,1) h(theta)=(theta)sin(theta) I say no, but could some one explain the process involved in determining this.

trig

Find the remaining trigonometric ratios of θ if sin(θ) = -1/6 and θ is not in QIII cos tan cot csc sec

Precalculus/Trig 5

Find the exact value of thet following trigonometric functions: tan(5pi/6) tan(7pi/6) tan(11pi/6)

Chemistry

From this equation, how many glocose does the human body consume ineach minute? If gram per mole is 180.16. The human body needs at least 0.0103 mole O2. Equation C6 H12 O6 + 6O2-->6CO2 +6HO2 How many glucose what? grams? moles? tons? Mext, the human body needs at least 0....

Spanish Song Translation

Can someone please translate the last two stanzas of "Bonito" by Jarabe de Palo? I tried translating it but couldn't and so I tried to find a good translation that looked like a human and not a translator did it, but that didn't work out either. So now I'm stuck. Please help ...

Math

Please check my answer thanks :) Based on the information below what is Peter's account balance ? Peter has a credit card with an APR of 15% His balance last month was $423.78 He then made a purchase in the amount of $123.42 he later made apayment of $100.00 Peter's finance ...

Health care

please check my answer thanks :) The ability to accurately predict yearly expenss was one reason that large companies decided to 1. offer HMO plans 2. enroll in managed care plans 3. self insure their workers 4. offer medical spending plans I picked 4

chemistry

please check if I did this right ... calculate the mass of white solid CaCO3 that forms when 98ml of a 0.1M Ca(NO3)2 solution is mixed with 54 ml of a 2.5M Na2CO3 solution. Ca(NO3)2 + 2NaCO3 -> Ca(CO3)2 + 2NaNO3 .098*0.1 =.0090 .054*2.5 =.135 limiting reactant is Ca(NO3)2 ....

geography

Can you check my answers please? 1.In what hemispheres is Africa located? Northern, Southern, Eastern, and Western 2. What is the easternmost state in the 48 contiguous states? Maine 3. What is the capital of the southernmost country in Africa? Pretoria, South Africa 4. How ...

calculus-can someone please help me with this ques

Find all zeros of the following polynomial. Write the polynomial in factored form. f(x)=x^3-3x^2+16x-48 I put: x^2(x-3)+16(x=3) (x-3)(x^2+16) For zeros: x-3=0 x=0 **My teacher stated check the equation solution again. What is the value for x and hence what is the zero for the ...

E.L.A. PLEASE CHECK!

Which choice best describes the underlined word or words in each sentence? For several decades, satellites around the earth have broadcast signals and monitored weather. Underlined is: satellites A- complete subject B- simple subject C- compound subject D- none of the above I ...

Social studies

what is the impact of Georgia's broiler industry ? 1.Georgia was able to meet the growing demand for the broilers in the united states 2.other country purchased broilers 3.the demand for broilers lessened in the late twentieth century 4.it provided jobs for immigrant 1 and 4 ...

computers

My computer is not starting. When i remove connection & reconnect then only it will work. one beep is also i can listen. today i got one error msg before pc start fireware is detected n your pc memory is decreased. please suggest me solution.

PHYSICS-stuck

These are the troublesome questions. What is the average velocity between 0.6 h and 1 h? A. + 0.4 km/h B. + 1.25 km/h C. + 1.66 km/h D. + 2.5 km/h The other question is below. What is the object's displacemnt between 0.4 h and 0.6 h? A. -0.75 km B. +0.25 km C. +0.75 km D. +1.0...

math

Hello! My name is Robert and I am in 6th grade. I have a question about my homework and my mom and dad cant help u because they are still at work and i need help.Can you please tell me what a division problem that has the same answer as 4.65 divided by 0.12 is? If you can u ...

chem

i don't know how to solve this. looked through all my note but i'm not sure what kind of formula i am to use or if i even need one! please help me to understand this: "calculate the work need to make room for the products in the combustion of S8(s) to SO2(g) at 1 atm and 0 ...

science

i don't know how to solve this. looked through all my note but i'm not sure what kind of formula i am to use or if i even need one! please help me to understand this: "calculate the work need to make room for the products in the combustion of S8(s) to SO2(g) at 1 atm and 0 ...

help please :)

Which of the following is considered plagiarism? A. copying someone eles's work. B. using a statistic and forgetting to give credit to the source. C. Buying a pre-written essay from the internet and using it as your own. D. All of the above. I got D am I right ? What do you ...

Finance

Danny Joe borrows $10,500 from the bank at 11 percent annually compounded interest to be repaid in six equal annual installments. The interest paid in the first year is: $_________. (Please calculate the arithmetic solution and show your work)

Physics. PLEASE HELP!!

NOTE: 1 MJ = 106J. One of the most powerful cranes in the world, operating in Switzerland, can slowly raise a load of 6000 tonne to a height of 8 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

calculus

find the function that is finally graphed after the following transformations are applied to the graph of y=square root x in the order listed. a. reflected about the y-axis b. shift down 3 units c. shifht left 9 units please show work

Algebra 2 check my answer please?

The population of a bacteria in a Petri dish doubles every 16 hours. The population of the bacteria is initially 500 organisms. How long will it take for the population of the bacteria to reach 800? Round your answer to the nearest tenth of an hour. 8.7 h 10.8 h 11.1 h 12.6 h...

A Raisin in the Sun

Why does Mama decide not to move? (please check the following answer): Mama decides not to move because she thinks she's aiming too high. She thinks moving would be unrealistic. She says that sometimes you have to know when to give up some things and hang on to what you ...

Health/Law

Which one is True Please check my answer thanks :) In jury trials ..... 1. The judge has no role. 2. Parties may request a trial jury for any type of case. 3. The judge and jury both have a role 4. The jury decides whether edvidence should be admitted I picked #3

geography

Can you check my answers please? 1. How does the continent you live on rank in land area when compared to all other continents? North America has the third largest land area of all the continents. 2. Port-au-Prince is the capital of what Caribbean Sea country? Haiti

Science

The doctor ordered an IV infusion of NaCl at 125 ml/hr for the next 48 hours. THe drop factor for the IV tubing is 10. 1) calculate the gtts/min Answer: 23 gtts/min 2) calculate the total amount of IV fluid the client will receive in 48 hours. I got 6000 ml.... Anyone check ...

math,correction from previous post

can someone please correct this for me thanks. simplify: 7sqrt(7x) + 5 sqrt (7x) My work: (7+5)sqrt (7x) My answer: 12sqrt (7x) is this correct? yup so i don't have to take out the x from the radicand Nope. 7x + 5x = 12x No matter what "x" is.

Math

can you put this into least to greastest5/8,2/7,3/10 It doesn't help when someone else does your work for you. Please let us know what YOU think the order is, and someone here will give you feedback. =) It's 2/7, 3/10, 5/8 i have an assignment were i have to find out about ...

algebra

Find a linear equation in the form P = mt + b (y = mx + b), which gives the population, P, t years from 2010. This is based off of an initial population of 6,000 in 2010, with a growth of 200 ppl per year. Please show work

Pre-Calc

Can you show me how to find the rectangular equation of r=2costheta + 3 sin theta All I need is an example to work off I was absent today from Pre-Calc and I have homework to do and no explanation with them-Please help with this one Thank you

Physics

Mike pulls a 4.5 kg sled across level snow with a force of 250 N along a rope that is 35.0° above the horizontal. If the sled moves a distance of 63.8 m, how much work does Mike do? please show steps/equation!

math

compounded- what would be the amount of compound interest on $12,000 invested for one year at 6%, compounded quarterly? round your answer to the nearest tenth. could you show me the work please ? i had $737.00 is that answer correct?

math

john counts backward from 140by twenties and lee counts backward from 120 by tens.how many of the same numbers do they say down to zero? can only body show me how to work out please,thankss

physics

The cricketer in the previous question hit the ball off the bat with a velocity of 25 m/s at an angle of 38° above the horizontal. If the boundary is 60 m away, work out whether the ball clears the boundary without bouncing or not. help please!

Math

A student covers the outside of a show box with construction paper. If the student does not cover the lid, what is the surface area that is covered? Please show work. Possible answers: A) 982.25 B) 1433.50 C) 1964.50 D) 5044.50

Vince

Please show work for Determine the final end (final) value of n in a hydrogen atom transition, if electron starts in n = 1 and the atom absorbs a photon of light with an energy of 2.044 X 10^-18J? thank you very much for your help

PHYSICS

A skier is gliding along at 2.0 m/s on horizontal, frictionless snow. He suddenly starts down a 10 ∘ incline. His speed at the bottom is 15 m/s . a).What is the length of the incline? b).How long does it take him to reach the bottom? (Please show work)

math

I'm so lost I have no idea. Please help Write the equation of the line that represents this graph. Show your work or explain how you determined the equations. graph of line going through ordered pairs (0, 300) and (450, 0)

Physics

At what speed would a 50kg person have to run to have the same kinetic energy as a 1000kg auto traveling at 100 km/h? Help ASAP please!! Show work step by step along with the equation

Math

Guess and Check is an important problem-solving strategy. Use guess and check to solve each puzzle. a) A number times itself is 100. What is the number? b) A number times itself is 225. What is the number?

behavior problems (dogs)

Please check my answer thanks Often, when an owner disciplines his or her dog it's done A. to help the dog understand what is expected of him. B. to teach the dog a lesson. C. in anger. D. in the best interest of the dog. I picked C tho I have known people say that they want ...

Physics-Please check-I had something wrong with my

Would changing the frequency of a wave cause a change in amplitude? I would say only if the wave velocity remains the same because if the frequency increases, vibrations increase and then amplitude would decrease, correct? If I had a wave diagram will 4 complete waves showing ...

density and density error (check calculations)

Calculate the density of earth and its density error d=m/v where m = 6.00*10^24kg and v = (4/3)(pi)(6359000)^3 = 1.07709...*10^21 m^3 therefore d=6.00*10^24/1.07709...*10^21 m^3 d = 5570.5254...kg/m^3 using the sig fig rule, in division and multiplication take the least ...

Accounting

Beginning work in process inventory 17,000 40%. Transferred in from the prior department 72,000. Ending work in process inventory 18,000 30% According to the company records the conversion cost in the beginning work in process inventory was $63.104 at the beginning of ...

math- check please

1) True/false: For any real number x, ln e^x = x. I think that is true. 2)true/false: (2 ln x)/ ln 10 = ln x^2 - ln 10 for all positive x. I think this is true too.

Physics

A trunk of mass m = 1.100 kg is pushed a distance d = 32.0 cm up an incline with an angle of inclination theta = 26.0 ° by a constant horizontal force P = 150. N. The coefficient of kinetic friction between the trunk and the incline is 0.330. a) Calculate the work done on the...

U.S history

Was Slavery the basis of freedom in colonial America? This what I hvae written I feel like its to much and would like to shorten it and make it sound more college level plz help. In colonial America slavery was the basis of freedom. In areas such as Europe and foreign ...

Algebra

Could you please check my answers and help me with one? Find the domain of the function. f(x)=-8x-2 -I got the domain being (negative infinity, postive infinity). g(x)= 3x/x^2 -49 (This one I don't understand how to find the domain)

Geometry-PLEASE CHECK ANSWERS!

In isosceles triangle DEF, DE=DF. Which of the following is true? 1) <D is congruent to <E 2) <F is congruent to <E 3) <D is congruent to <F 4) <D is congruent to <E which is congruent to <F Is the answer (3)? In triangle ABC, if line AB is congruent...

Spanish

Hola! Could you please check my work to see if my answers are correct? Muchas gracias! LOS MANDATOS AFIRMATIVOS. Forme mandatos afirmativos directos según el ejemplo: Ejemplo:BUSCARLO (tú)= búscalo 1. CONDUCIR (Ud.)= conduzca 2. PREGUNTARLES (Uds.)= preguntenles 3. COMER (...

math

how would you solve for y in this problem: x=(y^2+3y)^(1/3) I got: y= x^3/y - 3 ? and for this problem: x= 1/[(y^2+3y-5)^3] I got: y = y/x + 5/y - 3? However, I do not know how to solve for y explicitly. I don't think quadratic formula would work in these problems. Please help...

Math 222

Posted by Monica on Thursday, October 23, 2014 at 6:36pm. Please help me solve these two Rational Expressions? Sorry my addition sign does not work on my keyboard, so that is why I am using the word "plus". 1). g^2-6g-55 __________ g 2). k^3 plus k ___________ k^2 plus k-42

physics

an 85kg concrete block rests on a flat surface with coefficient of static friction us=0.42. find the maximum force that can pull on the block with, angle of 38 degrees above the horizontal without moving the block? please help and show work

chemistry

Are my answers correct? Identify each energy exchange as primarily heat or work and determine weather the sign of ΔE is positive or negative for the system. A. A rolling billiard ball collides with another billiard ball. The first ball (system) stops rolling after the ...

chemistry

Are my answers correct? Identify each energy exchange as primarily heat or work and determine weather the sign of ΔE is positive or negative for the system. A. A rolling billiard ball collides with another billiard ball. The first ball (system) stops rolling after the ...

math word problem

Andy and William work together to build a toy house. It will take William 5 hours and Andy 4 hours, or William 10 hours and Andy 2 hours to finish their work. If William works alone, how many hours will it take to finish his work? 5 10 15 20 Explain how you arrived at the answer.

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 ...

Grammar

Can you please check these? Thanks. Vowel Pairs: freezing rain sleet beat gray streets blue play Kay raisin feel easy Vowel Digraphs: looked said caught headline said school because heavy weather good sleigh said could neighbor bread instead

Art

Thank you very much. I still need you to check a few urgent things, Writeacher. 1)The line is engaged. Would you hold? Would you like to hold the line? Would you like to hang on/hold on? Which are possible? 2)You needn't have bought the milk; there was some already/there was ...

Chemistry - DrBob222 please check and help

Can you check these? And I need help on one. Oxidation Number Method of Balancing Redox Reactions 1)Neutral Solution Sn^2+ + Fe^3+ ----> Fe^2+ + Sn^4+ Balanced equation Sn^2+ + 2Fe^3+ ----> 2Fe^2+ + Sn^4+ 2)Acidic Solution Fe^2+ + Cr2O7^2- ---> Cr^3+ + Fe^3+ Balanced ...

Chemistry - DrBob222 please check and help

Can you check these? And I need help on one. Oxidation Number Method of Balancing Redox Reactions 1)Neutral Solution Sn^2+ + Fe^3+ ----> Fe^2+ + Sn^4+ Balanced equation Sn^2+ + 2Fe^3+ ----> 2Fe^2+ + Sn^4+ 2)Acidic Solution Fe^2+ + Cr2O7^2- ---> Cr^3+ + Fe^3+ Balanced ...

Agility Training

please check my answer thanks :) A run-out occurs when a dog A. runs off the course. B. jumps off an obstacle. C. must turn back to complete the next obstacle. D. takes an obstacle out of sequence My answer is D

math

please check my answer. each test is worth 100 points. the following test have been taken and earned 91, 90, 93. for a total of 360 points to earn an A, what grade should be made on the final test to earn an A my answer is 91.5

geography, Ms. Sue

Thank You I have two more. Will you check them for me please? 1. What two deserts does the Tropic of Capricorn cross on the continent of Africa? The Kalahari and Namib deserts 2. Is 80 degrees N closer to the equator than is 40 degrees S? No, 40 degrees S is closer Thanks ...

Child Development

Which of the following groups requires more irregular scheduling than the other three groups? A. 12-to 18 months-old B. 3-t0 5 years old C. school age children D. 18 - to 36 months old My answer is C can someone check my answer please

6th Grade Math

Can you check my answers please? 1. Convert 2 and 3/4 qts to pints. 1 qt = 2 pints (unit ratio = 2/1) 2 and 3/4 x 2/1 = 9/4 x 2/1 = 22/4 = 5 and 1/2 pints 2. A 40-foot power boat is for sale. How long is the boat to the nearest yard? 1 ft = 3yds (unit ratio = 1/3) 40 x 1/3 = ...

Please check this :D

Tyler wrote a paper describing life in England in the eighteenth _________, from ______ to ______. I think its A. A. century; 1801, 1900 B. decade; 1701, 1800 C. century; 1700, 1799 D. century; 1701, 1800

physics

A 100kg mass starts from rest at the top of an incline plane that makes an angle of 35 degrees with the horizontal, the coefficient of friction of 0.005 between the ramp and the mass. The mass slides down the ramp and then slides to a stop on a surface with coefficient of ...

physics

A 100kg mass starts from rest at the top of an incline plane that makes an angle of 35 degrees with the horizontal, the coefficient of friction of 0.005 between the ramp and the mass. The mass slides down the ramp and then slides to a stop on a surface with coefficient of ...

SCIENCE

CAN SOMEONE PLEASE HELP ME AND TELL ME IF IM RIGHT even a guess would be good ive been trying 4 a answer since 6:00 PLEASE help me :/ i think that the 2nd one is correct because i no that energy is not lost when water is boiled it is gained because of the bubbles and electrons...

math.can someone check my answers?

can someone check my math answers its only 5 questions thanks. please check my answers ! 21. Find the unit price for each option shown below. Round to the nearest cent when necessary. Indicate which option is the better buy. Option I: 10 candy bars for $6.75 Option II: 12 ...

cell biology

1.The________particle halts the translation of the mRNA to a polypeptide before checking to the ER a. singal recognition, permanently b. signal recognition protein receptor, permanently c. singal recognition, temporarily d. signal recognition protein receptor, temporarily I ...

Math

Andy and William work together to build a toy house. It will take William 6 hours and Andy 4 hours, or William 10 hours and Andy 2 hours to finiah their work. If William works alone how many hours will it take to finish his work?

Child Care

Which of the following statements about children and computers is incorrect? A. To be effective, a child's computer learning experiences must be planned and supervised. B. At a day care center, computer time should be scheduled like any other activity. C. During children's ...

Language Arts, check!!!

Which statement from "Why Do We Need Zoos?" best captures the author's point of view? 1. "...zoos were open to the general public, too, so everyone could find out about animals." 2. "Some people feel that there is lots of wild space and that animals should only live there." 3...

trig

Which expression is equivalent to tan theta-sec theta/sin theta? I don't get this

Math - Trig

Given that a measures 25.1 mm, x measures 51.2 mm and angle b measures 82°, find the length of y -

trig

if sec theta=-5/4 and 180degree < theta< 270degree, find tan theta a.-3/5 b 4/5 c.3/4 d.3/5

trig

if one of a quadratic equation is 1/2-2i, what is the equation. the other root is 1/2+2I but i don't know how to find the equation

trig

establish identity 5csc^2theta-3cot^2theta=2csc^2theta+3

Pre-Calc/Trig...

standard form: y=x^2-4x-5 vertex form: ? intercept form: ?

Trig

secθsinθ is equivalent to: Ans: tanθ?

Trig

Which is cos2 theta if sin theta = -2/sqrt13 and 180 < theta < 270? 1. -(13/5) 2. -(5/13) 3. 5/13 4. 13/5 3?

Trig

Given Tan(A) = 5 in Quadrant III and Sin(B) = ⅔ in Quadrant II, what is the Quadrant of A-B?

Trig

How do we show (sin 10)^2 + (sin 50)^2 + (sin 70)^2 = 3/2 ??? I can't even think of a way to start this..

math urgent please help

Mrs Buttler bought 1,800 shares of Stairwell Mutual Fund At an offer price of $3.00 per share. She later sold the shares at a net asset value of $4.60m per share. During the time Mrs Buttler owned the shares, Stairwell Mutual paid adividend of $0.80 per share. What is Mrs ...

language arts help please

9. Which sentence uses the past form of an irregular verb? My friend is keeping a journal. Adam has seen that show twice. Elsa gave me this book. We listened to the weather report.*** 10. What does the present perfect tense show? action that began in the past and continues in ...

Physics -

The work function of cesium surface is 2.0eV (a)find the maximum kinetic energy of the ejected electrons when the surface is illuminated by violet light with wavelenght = 4.13 x 10^3 Angstroom unit h = 6.63 x 10^9-34)Js (b) what is the threshold wavelenght ( the largest ...

accounting

Can anyone help me with this? Guard Dog Company recently changed its system of internal control over cash disbursements. The system includes the following features. Instead of being unnumbered and manually prepared, all checks must now be prenumbered and written by using the ...

accounting

Guard Dog Company recently changed its system of internal control over cash disbursements. The system includes the following features. Instead of being unnumbered and manually prepared, all checks must now be prenumbered and written by using the new checkwriter purchased by ...

Algebra 2

would some one please check these for me 1. divide x^2-36y^2 over 5x^2+30y divide (x^2-6xy) A: x+6y over (5x)(x^2+6y) 2. Add. Express your answer in simplest form. 2x 0ver x^2+15x+54 + 4over x+6 A: 6 over x+9 3. solve: (9 over x-5) -1= 8 over x+5 A: -10 and 11 This one I am ...

U.S.History

please check: 1. Which of the following best describes the ideology of Transcendentalists? a. humans are naturally bad b. Individuals should rely on outward rituals and group worship c. People's lives have been predetermined by God d. humans should be self-reliant and act on ...

English

Can you check these please? 1)It would be nice if our Italian students could start an e-mail exchange with their new American friends. 2)The committe has organized a buffet farewell party to wish the American students a good journey home. 3) What time are you flying back? Have...

English

Hi! ____ 13. Which of the following statements would best state the main theme of The Call of the Wild? (1 point) a) Perseverance pays off. b) Only the strong survive. c) If at first you don’t succeed, try and try again. d) Keep your friends close and your enemies closer. My...

physics

Consider the system shown, with m1 = 2.0 kg, m2 = 3.0 kg, and á = 30o. The force F acts horizontally to the left and the kinetic coefficient of friction between m1 and the incline is ìk = 0.40. The mass m2 is moving up at a constant speed. (a) What is the magnitude of F? (b...

physics

The magnitude of the electric field between the plates of a parallel plate capacitor is 3.0X10^5 N/C. Each plate carries a charge whose magnitude is 0.17 µC. What is the area of each plate? can someone please work with it in numbers!!

statistics

Assuming that the weights of newborn babies are normally distributed with mean 6.5 pounds and standard deviation 1.2 pounds, how many babies in a group of 80 do we expect to weigh more than 8.9 pounds? Please show work Thank you

algebra

List all possible rational zeros for the polynomial below. Find all real zeros and factor completely. Please show all your work. f(x) = 2x^4 + 19x^3 + 37x^2 - 55x - 75

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