Trig check my work please?
90,505 results, page 99

physics
A batter hits a fly ball which leaves the bat 0.90 m above the ground at an angle of 61° with an initial speed of 29 m/s heading toward centerfield. Ignore air resistance. (a) How far from home plate would the ball land if not caught? (b) The ball is caught by the ... 
Nedd Help Please  PreCalc
The coordinates of the five quarter points for y=sin(x) are given below. Use these quarter points to determine the ycoordinates of the quarter points of y=2sin(1/4x). (0,0) (π/2,1) (π,0) (3π/2,−1) (2π,0) (Type ordered pairs. Type exact ... 
math
it took 12 gallons of gas to fill the family car this is 5/6 the amount that the tank can hold how much gas can the tank hold? A.10 Gallons B.14 2/5 Gallons C.12 5/6 Gallons D.13 5/6 GallonsMy Answer Please check thanks:) 
Physics
An airline pilot pulls her 12.0 kg rollaboard suitcase along the ground with a force of 25.0 N for 10.0 meters. The handle she pulls on makes an angle of 42.5 degrees with the horizontal. How much work does she do over the tenmeter distance? Tried doing: (Cos(42.5) * 25N) * ... 
English,maths,physics,chemistry
Topic:machine,a block and tackle of 6 pulleys is used to raise a load of 300N steadily through a height of 30m.if the work done against friction is 2000J. calculate:the work done by effort,the efficiency of the system,the applied effort. 
math
Daniel needs to purchase 5.6 meters of tape for a project. If each roll of tape contains 80cm andcosts $2.50, what is the total cost of the tape Daniel must buy? x=cost of tape meters of tape/cost 5.6/x=.8/2.5 x=17.5 I have the cost is $17.50 Is this correct? They want us to ... 
anatomy physiology/check please
Muscular dysgenesis or dysgeny is a lethal, recessive, genetic disease of mice that is caused by a mutation in the mdg gene. Skeletal muscles from dysgenic mice are paralyzed and the animals die shortly after birth. You are a research scientist interested in the finding the ... 
mATH
1. Compare using <,>, or =. 15 and 21 A < (MY ANSWER) B > C. = 2. Which nuumber is greater than 24? A 42 B27 C 16 (MY ANSWER) D 30 3. Which set of integers is ordered from greatest to least. A 13, 4, 0, 8 B 5, 2, 3, 1 C 12, 8, 4, 7 (MY ANSWER) D 4,6,7... 
trig
find the exact solutions (è in degrees) sin^2è+2cosè=2 change the sin^2 to 1cos^2, then rearrage the equation into quadratic form, use the quadratic equaion. 
math(trig)
i need to figure out how to write the formula for the following question In a right triangle a = 30 yds and t5an A = 2. Find b and c. I have the answers but do not know how to write the formula. Can you help me ? 
college Trig
Solve this equation on the interval 0 θ < 2π. Round your answer(s) to two decimal places. 2 sin θ + 3 = 2 (smaller value) (larger value) 
trig
whats the horizontal distance traveled by a model rocket launched with an intitial speed of 120 feet per second when the rocket is launched at an angle of 60 degrees 
Trig/Precal
An airplane flies on a compass heading of 90° at 310 mph. The wind affecting the plane is blowing from 332° at 40 mph. What is the true course and ground speed of the airplane? 
trig
This identity means that translating a basic sine graph 3π/2 units to the right produces a basic cosine graph. True or False? sin(X(3(pi)/2)) = cosX 
trig
From a tower 57 ft high two objects in a straight line from it are sighted at angles of depression of 27degrees and 40degrees5' respectively. Find the distance between the two objects. 
Trig right triangle
A ship leaves port at 6 am and heads due east at 20 knots. At 10 am, to avoid a storm the ship changes course to N 47°. Find the ships distance from port at 4 pm. 
Trig
Two rays with common endpoint O form a 30 degree angle. Point A lies on one ray, point B on the other ray, and AB=1. What is the maximum possible length of OB? 
Calculus  series
I'm getting this answer wrong, can someone please help show me what i'm missing?? thank you :) Infinity of the summation n=0: [(1)^n pi^(2n)] / [6^(2n) (2n)!] this is my work: [(1^0) pi^(2*0)] / [6^(2*0) (2*0)!] + [(1^1) pi^(2*1)] / [6^(2*1) (2*1)!] + [(1^2) pi^(2*2)] / [6... 
Using the factor Theorem
use the factor theorem to determine whether xc is a factor of f(x) f(x)=x^3+8x^218x+20; x10 I have a doubt in my answer, i determined that x10 is not a factor... am i right? please verify as my exam is tomorrow night at college. thank you for your time and hard work:) 
CHEM
Magnesium has an average atomic mass of 24.3068 amu and has three isotopes: 24Mg(23.985045 amu), 25 Mg (24.985839 amu) and 26 Mg(25.982595 amu) The 26 Mg isotope has an abundance of 11.1%. what are the abundances of the other two isotopes. Please show work 
Chemistry. Please help
How many milliliters of glacial acetic acid (17.3 M) would you need to titrate an aqueous solution of 100 grams sodium acetate (MW = 82.0 g mol1) to get a final pH of 5.00 and a final volume of 1.00 liter? The pK’ for acetic acid is 4.76. Show your work. 
math hw
steven bought four rare books that cost $130, $120, $80 and $75 respectivily. if he paid 1/3 of the total cost immediatly and the remainder in three equal payments, how much was each of the equal payments? please show work. 
college algebra
write the expression as a single logarithm 1. In(x/x*2)+In(x+2/x)In(x^24) solve the following logarithmic equation. 2. log_9(x2)+log_9(x+1)=2 what is the exact solution? What is the decimal approximation for the solution when rounded three decimal places. please show work 
physics
How fast must a ball be rolled along a 100 cm high table so that when it rolls off the edge it will strike the floor at a distance of 100 cm from the point directly below the table edge? Please show work. 
math
One package of water plants is recommended for 3000 cubic centimeters of water in a fish tank. How many packages of plants will be needed for a 45cm by 70cm tank that is filled to a depth of 10cm? please show work. 
Calculus
Find an equation of the tangent line to the graph of f at the given point. f(x) = x + (4/x), (4,5) I tried using the limit process a lot, but it didn't quite work. If possible, please use the limit process. Thanks a lot to whoever answers this question. 
geometryPLEASE CHECK AND HELP!!
1. Refer to the following line m: b. Name two rays on m that have endpoint B. d. Find a simpler name for the intersection of rays BA and AC the line m has points a b and c going on across like that on the line would the answer be ba and bc? what would the answer to d be? 
Chemistry(Please check)
What is the molar solubility of barium phosphate in a 0.282M barium acetate solution? If I set up and ice table I would have 0.282M  X = ? Would I use the molar mass of barium acetate to complete the equation to find X? 
world geaography
Until about two years ago, France officially had a 35hour work week. However, in 2005, the government changed this law to allow employers and employees to negotiate a longer work week with more pay. http://www.triplet.com/5010_employment/5020_workingtime.asp how long is ... 
English
Can you please check these sentences for me, please? Thank you very much. 1)The avenger is involved in complex planning. 2) A lot of murders occur within the play. 3) The hero becomes more and more isolated throughout the play (better: within the play, as the play develops?) 4... 
Physics
We have a heat engine that produces 150 J of heat, does 40 J of work, and emits 110 J into another system. What is the efficiency of the heat engine? (show you work) 
After finishing your education what do you hope to
Here is the second part of my project. Please list what and why. (After finishing your education what do you hope to accomplish in your professional and personal life?) Work and make enough $ for the following purposes: for my parents and me to use in daily life, for me and ... 
social studies PLEASE CHECK
1. which is an event of the progressive era enacted by the local government in South Carolina? a. the first grange chapter was established for farmers b. the grandfather clause gave poor whites the right to vote c. blacks were disfranchises through a poll tax d. a law ... 
fine arts
please check these: true or false A minaret was a spiral tower _F A muezzin is a niche in the wall_F i need help in these three 1.Gothic style churches were not limited to France. 2.Two famous architects designed the dome of the Hagia Sophia 3.The Gothic period began around ... 
English
Can you please check these sentences for me? Thank you. 1)Herewith I'd like to know if it is possible to upgrade my reservation for a family room to (?) Your New Premier Club Room. 2) The total price for the two nights will then be of ..... Euros and includes (?) 4 Full Irish ... 
cultural diversity
An early learning center that emphasizes "product" over "process would a. threaten most mainstream children bbe vhilddirected reflecting selfselection of activities & matrials c. ignore rhe principles of developmentally appropriate practices d.harmonize with nonmainstream ... 
Social Studies
1) Who invented the sewing machine? a) Elias Howe***** 2) By, 1860 the Midwest and the East were united a network of? b) railroad tracks***** 3) Which invention filled the need for a method of communication that kept up with the industrial growth and fast paced travel? b) ... 
Relative Clauses and Pronouns
1.The car which he is driving cost him a fortune. 2. I like to go to that store where they frequently give out free samples. 3. Leon is the student who sings very well. 4. The man whom you helped was my father. 5. This is the tiger that the hunters have been looking for. 6. ... 
Spanish
Can someone please check my work? What do you like to eat for dinner? Answer the following questions in complete sentences. 1. ¿Te gusta comer sopa en la cena? Sí, me gusta comr sopa en la cena. 2. ¿Te gusta beber jugo de naranja? Sí, me gusta beber jugo de naranja. 3. ¿... 
MATH
Good Evening Ms SUE, Frankly I tried the below some as you said but still I am not getting the answer still i am getting the same answer as option A. 2 1/6 n I know this is wrong Mam if you don't mind can you check n tell where i am wrong and correct me please. Thank You It ... 
need answer to check sons work
alica finished the race 3.75 seconds before kaye. donna finished the race 5.09 seconds after carmen. carmen finished the race 10 seconds before kaye. ardens finished 4.89 seconds after kaye. how many seconds earlier did carmen finish than anders 
English
There are no pterodactyls in Ramirez’s front yard, but there are a mother dolphin, her baby, and two sheep. There’s a Don Quixote on his horse, aiming his lance at a windmill. There’s a space alien emerging from a flying saucer and an abstract baseball player completing ... 
math trig
If a ferris wheel with a 20.5 meter radius, how high would one car be from the loding dock at these given angles trveled by the rider?: 90 135 180 225 270 315 405 450 495 and 540? 
Trig
The postal service places a limit of 84 inches on the combined lenght and girth (distance around) of a package to be sen parcel post. What Dimensions of a rectangular box with square crosssection will contain the largest volume that can be mailed? 
Algebra 1
sqrt r  sqrt s/ sqrt r + sqrt s =r sqrt r sqrt rs +sqrt s/ r can someone check this for me please. 
religious education  Re teachers
I need to write an essay about baptism in different churches. please could someone help find a website that explains it simply. I was off school sick after having an operation when we did most of the work and missed alot of the information I need. thankyou for helping 
Chemistry
I havent been at school for 8 days due to somthing wrong with my heart, but the teachers gave me work. I have no clue how to do them. I really need help please, There all due tomarrow. Determine the pressure inside a televison picture tube with a volume of 3.5L that contains 2... 
Psychology
Write a 200300 word response, considering how employers and fellow team members might use this instrument at work. Is this test reliable?Is it valid? What are the potential benefits and drawbacks of a test that attemps to measure skills, abilities, or traits. Can someone ... 
English
Will you please make sure that I have picked out the correct preposition in each sentence? 1. Parts of wrecked ships filled one room. (of) 2. A museum guide spoke to us. (to) 3. During a storm sailors work very hard. (During) 4. Clippers traded with China and Australia. (with) 
Economics
We created a new iPod for a scarcity project, and we can't come up with a slogan to save our lives. Help? Some of the features are picking songs based on your mood( like a mood ring) and being able to work through homework problems. It would be amazing, huh? Please help! 
physics (please help I have a test tmrw)
How much thermal energy is released when 500g of steam at 100 degrees C condenses into liquid water and then cools to 50 degrees C? I tried to solve q=mct for q and then use that in the q=mLv formula but it didn't work. The answer is 1.3x10^6J Help would be appreciated! Thank you 
Social studies
Can someone please help me? Here's my quick check questions :) 1. Native Americans who live in on lake Titicaca use totora reeds for all except A. Making boats and houses B. Wagons C. Clothing D. Food and medicine 2. The Argentinian plains are home to Argentinian cowboys,also ... 
Chenistry check
Can someone check my answer? The question is: In order for the reaction 2Al(s) + 6HCl(aq)> 2AlCl3(aq) + 3H2(g) to occur, which of the following must be true? a. Al must be above Cl on the activity series. b. Al must be above H on the activity series. c. Heat must be ... 
Physics
I have two questions? 1What do we call the quantity force x distance, and what quantity does it change? **The quantity is called work and it changes energy** 2In what unit is energy measured? **joule?? isn't it the same as work?** 
Math 111
Suppose you have a job that requires that you work at least 25 hours but no more than 40 hours per week. Write an inequality, using t, that gives the number of hours you work each week. 
Movies
In the movie Zootopia, the character Judy Hopps has which police duty on her first day of work? traffic control parking duty desk work detective I Think its Parking Duty 
Physics drwls please help
(a) Calculate the kinetic energy that the earth has because of its rotation about its own axis. Assume that the earth is a uniform sphere and that its path around the sun is circular. For comparison, the total energy used in the United States in one year is about 9.33 109 J. (... 
7th grade math
Jared wants to save $100 to buy a tennis racket. He saces $8 each week, and his mother gives him a extra $0.25 for each dollar he saves. Determine the number of week it will take Jared to save $100. I am pretty sure the answer is 12 weeks and he would have $5 dollars left over... 
English
1. Give me five grapes from the bunch of grapes. 2. You should call the Internet connection company. Then you can get the Internet installed, but you should have your ailen card. 3. Interview two of your new friends and write down the information of the friends in the table on... 
math
Robert's acct p $98.50 has been delinquent for three months. Office procedures charge a 2% service charge after 90 days componded monthly and is added to future bills. What will be the amount owed after nine months? I did $98.50 x 2% = $1.97 $1.97 x 6months = $11.82 $98.50+ $... 
PhysicsPlease check
If I have a diagram of Kepler's laws of planetary motion and it shows change in t1 larger than change in t2 and A1 larger than A2 and asks the question: which of the following is correct? 1.A3 = A3 2.change in t3 > change t3 3.if change t3 = change in t2, then the orbit is ... 
PhysicsPlease check my explanation so far
If I had the oldfashion camera that had a focal length of 35mm(0.035m) and I take a picture of a person 6 feet away, how far does the film need to be from the lens to record a clear image? I know that the equation is 1/f = 1/d(object) + 1/d(image) so would I do the following... 
English
Can you please check these two sentences? 1) He contrasts natural behaviour, which he regards as good to social behaviour, which was governed by reason and social conventions. 2) Long, lowneck Tshirts, which reach up to the tighs, are very popular among teenagers. 3) Can you... 
physics
how many gram of ice at 0 c can be melted by the heat released when one gram of steam condense to water at 100 c check my answer please and you deman i am sorry by accident i post it the previous question solution Qcold=Qhot MLf(ice)=MlV(water) Mice = (0.001*2256000)/(... 
another please help me check~calculus maths
y=3e^(2x)cos(2x3) verify that d^2y/dx^24dy/dx+8y=0 plz help me i tried all i could but it become too complicated for me here set u=3e^(2x) v=cos(2x3) du/dx=6e^(2x) i used chain rule dv/dx=2sin(2x3) dy/dx=3e^(2x)sin(2x3)+cos(2x3)6e^(2x) d^2y/dx^2 now i did lndy/dx=ln3e... 
Math
How do you write at least 6 fractions from the below ingredients list that serves 4 people. 1 cup allpurpose flour 2 eggs 1/2 cup milk 1/2 cup water 1/4 teaspoon salt 2 tablespoons butter , melted How do I make these fractions? PLEASE PLEASE PLEASE PLEASE PLEASE! HELP ME! 
Math
I help solving these out can someone work through them with me???? 19. WorkPad Note: In questions 1921, remember to show all of the steps that you use to solve the problem. Be sure to use the text box where the question mark (?) first appears to show your mathematical work. ... 
science
could someone please help me i have to write about the start of life on a extrasolar planet and talk about chemical evolution,, could someone please give me some pointers Is this S103 ECA? yes it is im just need some pointers so that i can do the work in my own words but i don... 
words and reference
what do these 2 words mean please.? can you please help with the 2 following questions 1) can you tell me what  embodiment  means and please give an example. 2) Also can you please tell me what  intersubjectivity  means as before please give an example. Please be as ... 
ap chem0 frequency
how do u do this type of problem... What is the frequency of a photon with a wavelength of 2.25 102 nm? (The speed of light in a vacuum is 2.998 108 m/s. Planck's constant is 6.626 1034 Js c = fw. c is speed of light which you have, f is frequency for which you must solve, w ... 
6th grade algebra
a) Kendric makes 4 out of every 5 baskets he throws. What is the probability he will make his next shot as a percentage? MULTIPLE CHOICE b) If Marcia walks 4 1/4 miles before work and 5 6/8 miles after work. How many miles did she walk for the day? A 9 7/12 B 1 7/12 C 9 D 10 
English
Please check my work. Correctly identifying the part of speech of each word in the sentences. Example: The boy hit the ball The (definite article) boy (subject) hit (past tense verb) the (definite article) ball (dircet object). 1. Mother gave me a card for my birthday. Mother... 
8th Grade Math
Can you please check my answer? An American football field is a rectangle 120 yards long (including both end zones) and 53 1/3 yards wide. What is the area of an American football field? my answer: 6360 square yards 
Spanish7th please check
Did I answer these correctly? ¿Qué necesitas para jugar al tenis? Necesito una raqueta y una pelota de tenis para jugar al tenis. ¿Cuándo juegas el ajedrez? Yo juego el ajedrez por la noche. 
SpanishPlease check these
¿Qué comiste la semana pasada? Yo comí tacos. Did I answer these correctly? I'm not sure ¿Qué estudiaron ellos la semana pasada. Ellos estudiaron el español. ¿Qué preparon Uds. ayer? Nosotros preparamos la tarea. 
Chemistry
Can someone please check to see if I am doing this correctly. Thank you :) Q) Calculate the new molarity of a 35mL sample of 0.450 M CaCl2 solution that is diluted with enough water to make 250 mL of solution. A) 0.450 m CaCl2 x 35mL/250mL = 0.063 mL diluted solution 
math(PLEase help me check.)
1) C=md+t The cost C, of a business trip is represented by the equation above, where m is a constant, d is the number of days of the complete trip, and t is the cost of transportation, which doesn't change. If the business trip was increased by 5 days, how much more did the ... 
Physics
A 1200 kg car rounds a curve of radius 71 m banked at an angle of 11°. What is the magnitude of the friction force required for the car to travel at 82 km/h? My physics optional extra work: This would be helpful so I can compare the solutions here as I do the work by myself. 
Algebra
91. Find the domain of: y=3x+1 a. all negative numbers b. x>0 c. all real numbers d. x=3 Can someone please show the work and how to solve this problem. There are many of these in my lessons and I don't understand how to solve them. Do you solve for x? 
Social Studies (please check Ms. Sue)
Please check this. Thanks!!! 1. How did President John F. Kennedy most support civil rights? a. He favored voting rights laws.*** b. He organized a march. c. He established the Peace Corps. d. He rode "freedom buses." 2. Which of the following was a result of the Civil Rights ... 
trig
Find all solutions of the equation. Leave answers in trigonometric form. x^51024=0 I got 4(cos tehta + i sin tehta), tehta = 0, 2pi/5, 4pi/5, 6pi/5, 8pi/5 is this right 
trig
On a typical day at an ocean port, the water has a maximum depth of 18m at 6:00 am. The minimum depth of 9m occurs 6.8 hours later. Write an equation to describe the relationship between the depth and time. 
Harmonic Oscillation
The velocity of a certain simple harmonic oscillator is given by: v=(12m/s)sin [(6.0rad/s)t]. What is the amplitudeof the simple harmonic oscillator. Please show your work. 
algebra
Write an equation of the line containing the given point and parallel to the given line. Express your answer in the form Y= mx+b (6,8); x+6y=5 The equation of the line is Y= I do not how work this problem help me, please 
science
A bus travels from city x due east toward city y. If the bus travels at an average velocity of 90 km/h [E], what will be the displacement of the bus 4.5 h later? SHOW WORK PLEASE! 
Math
5 books and 9 magazines cost $150.50 dollars altogether. 9 Books and 5 magazines cost $175.70. How much does 1 book and 1 magazine cost? Please show work 
French
You are on vacation in Paris, describe each attraction you visited. Can someone please check my work? Eiffel Tower The queue to get up the Tower was enormous, but, after an ice cream, I decided to go up. After 30 minutes of waiting in line, I managed to catch the lift. At the ... 
Spanish (URGENT)
Can someone please check my work? Write a paragraph describing your party. La fiesta está en una grande mansión. Tiene seis cuartos, una recamára principal, tres (guest rooms), ocho baños, un comedor, un grande patio, una piscina interior, (and outside mini golf course) y... 
Grammar and Composition
please check these: In the following exercise, capitalize the words that are spelled incorrectly. then spell it correctly. 1 misspelled word per line 1. MAXIMUN, memorandum, merchandise, millionaire (maximum) 2. miscellaneous, mischievous, MONENTOUS, monotonous (momentous) 3. ... 
Chemistry
I Posted this question the other day: A 1.00 g sample of enriched water, a mixture of H2O and D2O, reacted completely with Cl2 to give a mixture of HCl and DCl. The HCl and DCl were then dissolved in pure H2O to make a 1.00 L solution. A 25.00 mL sample of the 1.00 L solution ... 
english
what is a thesis http://www.onelook.com/?w=thesis&ls=a The word has several meanings. Please check this site for explanations. http://www.answers.com/topic/thesis If you still need help, please post another question. 
trig
(sec(x) / (sec(x)1))  (sec(x) / (sex(x)+1)) = 2cot(x)csc(x) 
trig
solve for theta 6. tan theta=1 7. sin(theta/2)=1/2 thank you for your help! 
Chemistry
A pure sample of (R)limonene has a specific rotation of +125.6. If a sample had a specific rotation of +35.6, how much of each enantiomer is present in the sample? Show your work. I don't even know where to begin....please help :( 
Math
can you please help me work on this problem? I have a few and I want to know how to figure it out: The ratio of boys to girls in a class is 5 to 6. How many boys at in the class if there is a total of 121 students. I guessed 55 boys and 66 girls? 
MATH
Thanks for the answers but I must show the work for each problem. Can someone please help now that I finally submitted the square root correctly,thanks to drwls, and Ms. Sue. Thank you The slash (/) line represents that the number is a fraction. divide: sqrt45 / sqrt81 = ... 
math
2. sylvia has 6 1/2 boxes of chocolate to share at a family picnic. if she gives each person 1/3 of a box, how many people can receive chocolate? 13 17 19 21 3.which of these numbers is not rational? square root 3 0.25 1/5 square root 9 4. a student's work to solve 2 6/7 ... 
Physics
A wave traveling in the +x direction has an amplitude of 0.50 m, a speed of 5.7 m/s, and a frequency of 18 Hz. Write the equation of the wave in the form given by either Equation 16.3 or 16.4. (Answer in terms of t and x. Assume standard units.) please check my answer: y= A ... 
Health care
Please check my answer thanks :) Your neice may be eligible for health care coverage under the State Children's Health Insursnce Program. Where should your neice first start reveiwing eligibilty requirements ? 1. Social Services 2. The centers of Medicare and Medicaid 3. in ... 
math
The area of a circle is found with the formula A =〖πr〗^2, where π represents 3.14. If a tile artist is placing tiles in a circular mosaic pattern and the area of the circle is 658 square feet, what is the approximate radius of the circle in feet? a.)10...