Trig check my work please?
90,437 results, page 60

trig
Solve rounding to 2 decimal places. 9cosx + 4cos(2x) + 1 = 0 over 0° ≤ x < 360° Thanks to anyone that can help! I'm totally stumped. 
math
In right triangle ABC, a = 52 ft and c = 63 ft. Which of the following trig ratios of angle B, would combine the given sides? 
Trig
Evaluate tan(ab). No decimals. Only exact answer. Sin a = 7/25, cot b = 8/15 neither a nor b are in quadrant IV. 
Trig
Evaluate tan(ab). No decimals. Only exact answer. Sin a = 7/25, cot b = 8/15 neither a nor b are in quadrant IV. 
PreCalc/Trig
Use Descartes' rule of signs to describe the roots of the polynomial function. m(x)=x^3+3x^218x40 
TRIG!
true or false, the two sets of parametric equations x=t, y=t^2+1 and x=3t, y=9t^2+1 have the same graph. justify your decision. 
trig
How much does it cost to paint a triangular surface of sides 6m,5m, and 11m at the rate of rs.20/per metre square. 
trig equations
Find all solutions (if they exist)for the given equation on the interval [0,2pi) cos^2x5sinx+5=0 
functions and trig
write the transformation of X cubed if it is shifted right four units and then reflected over the X axis 
Trig
Find the exact value of the trigonometric function given that sin u=3/5 and cos v=8/17. Both u and v are in quadrant II. Tan (u+v) 
Trig
Convert the polar equation to rectangular form. r=4cos4sin What I have so far: r^2=4rcos4rsin x^2+y^24x+4y x^24x+y^2+4y=0 
trig
Find the exact value of costheta if ,sintheta=2/3 and theta is in standard position with its terminal side in Quadrant IV. 
cultral diversity
Help! check my answer Emergent literacy skills are significantly enhanced by a. the educational or professional level of one or both parents b. engaging in literacy events with other persons,especially adults. c.the family's socioeconomic ststus and aspirations. d.quanlity of... 
Science need help
Choose the words or phrases that most accurately complete the sentences below. One of the most effective measures that a government can undertake to reduce cardiovascular disease is to ………………..Individuals can also decrease their own risk of developing CVD by ... 
math
3 3/4pt=____c show steps and work please Try the method DrWLS or I showed you FIRST. Repost if you still don't get it but tell us what you don't understand about the procedure. 
Math
x=33y x+3y=6 I'm looking for coordinates of where the two lines intercect. If you can, please show your work :) I know it's either (5,2) or No Solution. But I hate not knowing how something works, and I know that if I don't find out, i'll regret it. 
Chemistry
Hey guys, been a long time since I have done this. Please show your work. Thanks a lot! How many grams do 3.6 × 10^20 atoms of sodium weigh? Answer in units of g 
algebra 1
what is the yintercept of the graph of 4x+2y=12? i was giong well on my scratch paper and i mest up and i got stuck and had to erase everything and do it over answers: a 4 b 2 c 6 d 12 please and thank you i need how they do the work i cant decide! 
Physics
A 1.11 kg block slides down a 15.0 m long 32.0° incline at constant velocity. How much work is done by friction? (please help me show me how to solve using equation and where to plug the numbers) 
maths
my daughter studying in 2nd standard this is the project work i don't understand, please show me the answer. make a chart to represent nos 115 using small objets 
intermediate algebra
solve using the elimination method. show your work. if the system has no solution or an infinte number of solutions, state this. 14x+18y=54 4x14y=42 help me please 
statistics
suppose x is a uniform random variable with c=30 and d=80 find the probability that a randomly selected observation exceeds 50 this is the direct question, i have no idea how to work this problem, please help 
Math
Could someone please help me with this problem I just do not get it. Arrange the numerals 1 to 9 (1, 2, 3, 4, 5, 6, 7, 8 and 9) in a single fraction that equals exactly 1/3 (one third)? Example that doesn't work: 7192/38456 = 0.187 
Math
Suppose f(x) is a polynomial of degree of 5 and with leading coefficient 2009. Supposdm further that f(1) = 1, f(2) = 3, f(3) = 5, f(4) = 7, f(5) = 9. What is the value of f(6). The answer given in book is 241091. Please work the complete solution. 
math
stamjps are sold in bookiets of 100,50, and 10.find as many different ways to buy 200 stamps as you can. record your work in the chart. could you give me some examples...please! 
PLEASE HELP CHEMISTRY
CuSO4.xH2O Determine the percent by mass of water in your sample of hydrated copper (II) sulfate. Show your calculations clearly. My work. i got 10% is that correct 
chemistry
CH4+2O2>CO2+2H2O If 22.75g of carbon dioxide is obtained when 9g of methane is burned in excess oxygen, what is the percent yield? Show work too please 
algebra
Am I allowed to post 3 related questions? I'll try. Please write these scientific notation answers in standard form showing complete work. 1.764*10^8 3.90625*10^7 3.0*10^3 Thank you. 
chem
What are the molality and mole fraction of solute in a 25.5 percent by mass aqueous solution of formic acid (HCOOH)? work this one out please i didnt understand 
Algebra
In Vanessa's coin bank there are 4 times as many quarters as nickels, 2 fewer dimes than nickels, and 15 pennies. The total amount in the bank is $5.80. How many of each coin are in the bank? A. Assign a variable to the unknown quantity. B. Write an equation you can use to ... 
spanish/check
translate to spanish our father's office la oficina de nuetro padre 2translate the possesine adjective in parentheses into spanish su escuela(their) can you check my answer thank you 
English
I did the corrections myself. Can you please check them? I just wanted to know if it is better to say "at Medford Square or in Medford Square, "to leave Turin for Rome", "to leave from Turin and go to Rome", "on" OR "during" our last night in Rome?". I included the sentences ... 
English
The new drug proved to be highly efective,it has no side effects. A. PROPERLY CONSTRUCTED SENTENCE B. COMMA SPLICE C. LACKS PARALLEL PARTS D. HAS UNCLEAR PRONOUN Please post your answer, and we'll discuss it. A Please check this site. http://ace.acadiau.ca/english/grammar/... 
math
I was wondering if someone could double check my work on a test I'm self correcting. Here's the problem, it has to do with Cramer's Rule. 24x + 6y = 11 24x + 60y = 25 I ended up finding the base determinant (D), and then dividing Dx and Dy by D. My answers for Dx and Dy ... 
Health/Law
Please check my answer :) Martha the medical assistant is legally compelled to give her testimony in a under oath in a malpractice lawsuit Why must she do this ? I think it might be she got some type of subpoena or She is a key witness in the case 
geo check
since the 1970s the united states and canada have reduced _______ around lake erie. A)unregulated boat traffic b)overgrowth of destructive algae c) noise pollution D)illegal immigration. i think it b please help me out. 
Grammar and Composition
Please check these: Capitalize the conjunctions in the following sentences. 1. The audience laughed AND clapped. 2. Both you AND I will come to a decision. 3. Aunt Alice called WHEN we were out. 4. Give it to the boy OR his mother. 5. We ate NOT ONLY cake BUT ALSO watermelon. ... 
language please check these
ARE THESE CORRECT(do they make sense to u): he is a columnist the remedy is working you will receive a bonous i don't know a reason i bought an anniversary gift the jewel is expensive may i borrow an almanac kate wants the checkersthe signature was forged thank you oh ... 
Government US
According to Charles Beard, which of these was NOT an economic group that benefited from specific constitutional provisions? a. Those holding public b. slave owners c. Western land speculators d. Farmers and ranchers e. Merchants and manufacturers I would say C Please check. 
geography
1. What five countries are landlocked? Nepal, Afghanistan, Bhutan, Mongolia, and Tajikistan. 2.What is the name of the body of water that is part of the Indian Ocean between the east coast of India and the Malay Peninsula? Bay of Bengal Can you check my answers, Please? 
Language Art (Please Check)
Im actually confused on this one i think its C. or D. but ill go with D. which of the following would be most likely to cause a commotion? A.A baby sleeping in a stroller B.A library closing for the evening C.A public appearance by a celebrity D.A grandfather clock striking ... 
SOCIAL STUDIES PLEASE HELP CHECK ANSWER
Which example best shows the United States as a mediator? A. Debating human rights with China**** B. Supporting democracy in the Philippines C. Promoting a peace agreement in Bosnia D. Encouraging the end of apartheid in Africa 
World History
What was one of Maria Theresa's successes as an absolute monarch? A. uniting the German states** B. forcing Frederick out of Silesia C. strengthening royal power D. adding Hungary to the Hapsburg empire I said A please check my answer. 
Check please
I think it is D can someone tell me if that is right? Which of the following was the main contributor to finally bringing the United States out of the Great Depression? A the National Recovery Administration B the Good Neighbor Policy C wartime spending D the election of ... 
english
it is a conversation between two friends about their journey to London. John asked Lee what he talked with the travel agent regarding their journey to London. Then, Lee told that the agent informed him that it takes some more time, at least one week. For which, John asked him ... 
Physics
A 64.4kg skateboarder starts out with a speed of 2.11 m/s. He does 81.6 J of work on himself by pushing with his feet against the ground. In addition, friction does 289 J of work on him. In both cases, the forces doing the work are nonconservative. The final speed of the ... 
ph
A 64.4kg skateboarder starts out with a speed of 1.95 m/s. He does 119 J of work on himself by pushing with his feet against the ground. In addition, friction does 260 J of work on him. In both cases, the forces doing the work are nonconservative. The final speed of the ... 
PHYSICS
A 60.8kg skateboarder starts out with a speed of 1.84 m/s. He does 90.8 J of work on himself by pushing with his feet against the ground. In addition, friction does 278 J of work on him. In both cases, the forces doing the work are nonconservative. The final speed of the ... 
physics
A 64.2kg skateboarder starts out with a speed of 2.21 m/s. He does 98.0 J of work on himself by pushing with his feet against the ground. In addition, friction does 276 J of work on him. In both cases, the forces doing the work are nonconservative. The final speed of the ... 
physics
A 64.2kg skateboarder starts out with a speed of 2.21 m/s. He does 98.0 J of work on himself by pushing with his feet against the ground. In addition, friction does 276 J of work on him. In both cases, the forces doing the work are nonconservative. The final speed of the ... 
social studies
how did women help prepare for the civil war??? i cant find in s.s book you should double check your book. if you cant find it in there you could use the internet, but i would check the book 
Writing Sentences and Paragraphs
Here is my Paragraph 1 , It is my good copy just wanna a final check before I submit it. PARAGRAPH 1 According to the job listing in The Daily News, I understand you are seeking a Medical Administrative Assistant to work in Fletcher Allen Hospital in Burlington, Vermont. This ... 
Algebra
Could you please check my answers? Find an nth degree polynomial function with real coefficients satisfying the given conditions. 1. n=3; 3 and i are zeros; f(2)=20 I got: f(x)=4^3+12x^24x+12 3.n=3;4 and i zeros;f(3)=60 I got:f(x)=6x^3+24x^2+6x+24 
Law
Please check my answer thanks :) Mary files a suit in federal court. What would give the court subject matter jurissiction? I said the claim involves a federal statue 
Law and Ethics in Med
Please check my answer thanks :) Roe v Wade is based in part on... the fetus's right to be born after the first trimester True or False My answer is True 
Health care
please check my answer thanks :) Which health insurance program is designed to complement the retirement surivior and disability insurance enacted under Titlr II of the SSA I said Medicare 
dog behavior
please check my answer True or False The following statement describes classical conditioning. It involves the pairing of a conditioned stimulus with an unconditoned stimulus I say True 
math
could someone please check these problems for me? Thank you! 1. 0.7x<35 x<50 2. Solve by elimination 3x+4y=3 6x+8y=6 answer:0 3. find y intercept to graph x+5y=10 answer: (0,2)(10,0) 4. use distributive law to solve 7(w5)=35 7w35=35 if i add 35 to both sides i get ... 
math
could someone please check these problems for me? Thank you! 1. 0.7x<35 x<50 2. Solve by elimination 3x+4y=3 6x+8y=6 answer:0 3. find y intercept to graph x+5y=10 answer: (0,2)(10,0) 4. use distributive law to solve 7(w5)=35 7w35=35 if i add 35 to both sides i get ... 
Assistance Dogs
Please check my answer thanks :) Service dogs are often taught to recall to a person A. sitting in a wheelchair. B. lying down. C. standing with crutches. D. kneeling down I picked A 
U.S. History
please check this The Treaty of Greenville was the result of which of the following battles a. Battle of Ticonderoga b. Battle of Burnt Cabins c. Battle of Fallen Timbers d. Battle of Little Big Horn i picked C 
3rd grade math
179,323,175 round to the nearest million sue can you please check my answer . this is my answer 280,000,000. hope i got it right. 
5th grade math
ms. sue can you help me with another problem? whatnis the median of the following number? 24,99,101,93,14,29? by the way can you please!check my last problem that you posted to me an hour ago here is my answer is 20 the median 
Soanish6th gradeAnother questionPlease check an
I have another question. If I have to use the word tener to express she is hotI would say Ella tiene calor, correct? 
Math(can you just check my answer please)
Lines x and y intersect to form angles 1,2,3, and 4. The measure of angle 3 is (3x  9) and angle 4 is 111 degrees. Can you help me make a equation I think the equation is 3x9 + 11 = 180 is this correct 
Physics(Please check)
A spring stretches by 0.0226 m when a 4.39kg object is suspended from its end. How much mass should be attached to this spring so that its frequency of vibration is f = 7.35 Hz? 7.35 = 0.0226(4.39x) Did I set this up correctly? 
Physics(please check)
A spring stretches by 0.0226 m when a 4.39kg object is suspended from its end. How much mass should be attached to this spring so that its frequency of vibration is f = 7.35 Hz? 7.35 = 0.0226(4.39x) Did I set this up correctly? 
check my set up please
At a horizontal distance of 34 meters from the base of a tower, the angle of elevation to the top is 72 degrees. Find the line of sight distance to the nearest meter. I set this up tan72=x/34 
Science
When the energy of a sound wave is transferred to a particle of a medium and causes it to vibrate and generate hear, the sound wave is A. reflected B. refracted C. absorbed D. transmitted I think it's C. check please 
Math
What is the slant height for the given pyramid to the nearest whole unit? Pyramid base = 6cm Height = 4cm A.) 7cm* B.) 5cm C.) 9cm D.) 8cm Ca n someone please check this? 
English Grammar
Please check if its correct Change from Positive to Negative 1.None of them were bad  All of them were good 2.Nobody was present in the funeral function Everybody was absent from the funeral function 
His
4. The United States cut off sales of oil to Japan after the A. Japanese occupation of southern Indochina. B. Japanese occupation of Hong Kong. i chose B please can you check my answer 
Chemistry(please check my answer)
A radioactive isotope of radium (Ra226) has a halflive of 1620 years. How much of this isotope remains after three (3) halflives? A. 1/2 B. 1/4 C. 1/8*** D. None 
Social Studies
In Chinese society, the merchant class ranked below the 1. farmers and aristocrats 2. landowners and traders*** 3. aristocrats and priests 4. bankers and farmers Can someone please check my answer? 
@ Helps meas pleases
Your previous post was deleted because it had lots of questions  but no answers. Please repost no more than five of those questions along with your answers. I'll be glad to check them. 
Physics
a 975 N object is pulled at a constant velocity up an incline with a force of 327 n parallel to the incline as shown in the diagram. Assume that the difference between the work output and the work input is the work required to overcome friction. a) what is the force of ... 
physics
A 975 N object is pulled at a constant velocity up an incline with a force of 327 n parallel to the incline as shown in the diagram. Assume that the difference between the work output and the work input is the work required to overcome friction. a) what is the force of ... 
Math
Simplify: 4^(1/2) 41/2 = 1/41/2 = 1/2. check my work. On exponents, negative means reciprocal. 4(1/2) means the same as 1/4(1/2) which is the same as 1/squareroot(4) so the answer is 1^4 no, of course not. The square root of 4 is 2 isn't it? so 1/squareroot(4) = 1/2. oh lol... 
AlgebraPlease check
Write y = 10^(x) as a logarithmic function Choices are log(x)10 = y log(y)x = 10 log(10)y = x log(x)y = 10 I think it is log (10)y = x 
Algebra 1Please, help me!
1. Mr. Lui wrote 15  5x/x^2  9x + 18. a. Explain what kind of expression it is. b. Simplify the expression. Show your work. c. Identify any excluded values. A: a. It is a rational expression. b. 5/x  6 c. Excluded value: x = 6 2. Lynne can paint a wall in 40 minutes. Jeff ... 
Trig Help!
Question: Trying to find cos π/12, if cos π/6 = square root 3 over 2, how to find cos π/12 using DOUBLE angle formula? This is what I got so far.. cos 2(π/6) = cos (π/6 + π/6) = (cos π/6)(cos π/6)  (sin π/6)(sin π/6) = cos^2... 
Algebra II
Solve x^2>_2x+24 x^22x24>=0 (x6)(x+4)>=0 So as long as x>6, it works. But what about two negatives? Try x=5..checks...check me on that. So it looks as if inf<x<=4 works, and 6<=x<inf works. check that. 
Physics
The two ropes shown in the bird'seye view of (Figure 1) are used to drag a crate 3.7 m across the floor. How much work is done by the force fk→? How much work is done by the force T1→? How much work is done by the force T2→? 
question about math (law of syllogism/detachment)
Does anyone know about the law of syllogism and law of detachment. If so, can you check my work. 
math
.divide AED 1380 among Ahmed John and Babita so that the amount Ahmed receives is 5 times as much as babita's share and its 3 times as much as John's share dear reiny i tried your way of doing it but i am unable to find it please help and my father gave me a different ... 
chemistry(check my work)
If 6.01 g of K2SO3 dissolved in 930 mL of water reacts stoichiometrically according to the balanced equation in a reaction solution with a total volume of 990 mL, what is the molarity (M) of KCl produced? K2SO3(aq) + 2 HCl(aq) → SO2(g) + 2KCl(aq) + H2O(l) 6.01gx ... 
Algebra(please check my answers)
**Fill in the appropriate vocab words that best fit into the sentences below** ~" Word Bank "~ A) central angle B) line of symmetry C) reflection D) transformation E) vertical angles F) transversal G) point H) circle ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ GIVEN SENTENCES W/ ... 
Math, Please Help! I don't understand!
Hi guys, please help me!1 I am having a tough time understanding this equation. Best answer goes to the person who shows there work. So... here is the equation... At the half time show, a marching band marched in formation. The lead drummer started at the point, (2,5) and ... 
MATH HELP
I posted this yesterday and no one bothered to check it, therefore Im posting it again, please check it this time. The south edmonton pet shop has several parrots and dogs for sale. There are a total of 24 heads and 82 legs in the display cages. A) Write a system of linear ... 
English
Could you please check these few sentences, please? Thank you very much! 1) Can't you say "cheat in the maths test"or is only on possible? She invites me for a walk (is it a mistake? She invited me to go for a walk) 2) She makes a living by teaching. She was sorry (is it ... 
Math Check
Hi! Can someone check this for me? My teacher wants me to write the system of equations that will correspond to the final matrix. I have the matrix already, but I need help with the writing the system stuff. Thanks! Matrix: [10 2  48] [5 6/4 9] My answer: 10x+2y=48 5x+... 
english
30day Money Back Guarantee Groom Co. electric shavers come with a 30day money back guarantee. The only stipulation is that you use your new exclusively for 2 weeks to become accustomed with the product. If you are not satisfied, we will refund the amount on your receipt if ... 
Check my answers please
I posted this yesterday and someone said i did not haveoriginal data but it is in the link. Please take out spaces h t t p: //tinypic . co m/r/309lnac/3 1. The population growth exhibited by population A to the right is what? Is is exponential? 2. Population B reaches its ... 
Music
Need a word to fit the following definition. Patterns of beats by which music is measured. Rhythm? No. I'm doing a crossword puzzle and its _e_ _ rd Thank you for using the Jiskha Homework Help forum. Please check that spelling, because it looks like "metered." 
Health
please check my answer thank you What is the first thing you should do if your bare hands accidentally comes in contact with a pt's blood. A report it to your doctor B wash your hands with and water C apply gloves D obtain a hep B shot I picked B 
english check
A)all of the copies has been made b)none of the stores are on my way home. c)most of your friends is waiting for you inside. d)some of the promblems is for you to slove. im not really sure but it might be c.im not sure if wrong please correct. 
english
I posted a question a few days ago, about Alan Kruger, and his stand on poverty and the financial crisis. I think Ms.Sue gave me a few links to check, but I can't find the post. Can someone link it to me please? 
English
I still have a doubt, Could you check this sentence, please? 1) I think it would be best if our science department (head??) teacher would get in touch with you directly so that you can discuss every detail before drawing up the project. 
English
Could you check these sentence, please? I don't know how to write n.2 1) 17 students from my I C look forward to corresponding with yours. On Monday I will let you know their class email adress so we can start the email partnership. 2) I measured (took is better?) my son the ... 
Chemistry(Urgent, please check)
For C4H10O a constitutional isomer can be written as CCCCOH with hydrogens also coming off of the 4 carbons. I know that this is an alcohol. I need to know if there are stereoisomers for this other than conformers. I think that there are stereoisomers because you can just...