Trig check my work please?

89,471 results, page 79

College Physics

(a) How many hours does it take him to work off a 450 Calorie bagel if he stays in bed all day? (b) How long does it take him if he's working out? 2 h (c) Calculate the amount of mechanical work necessary to lift a 126 kg barbell 2.10 m. 3 J (d) He drops the barbell to the ...

Health of young children

5.) A child in your program has just returned after having chickenpox. You notice that she still has a few dry scabs. What should you do? A. Send her home. She is still contagious. B. Welcome her back and let her know what there is to do today. C. Allow her to stay, but ...

grammar check PLZ HELP ;-;

Which sentence contains an error in the use of end marks or commas? A.Miss K.C. Fairchild will lead the band in a Sousa march. B. Mom, what does B.C. mean? C.Dr. and Mrs. Majeck will attend the party on March,12,2007. D. Address inquiries to Ella Adams, 315 Elm St., St. ...

Survey of Math 140

on march 8, you sign a $4000 note with simple interest 10% for 240 days. You make partial payments of $1300 on May 26 and $2300 on july 31. How much will you owe on the date of maturity (November 3)? Please show work!!!


the distance of fencing reqired for 75 acres but fist changing it to meters squared i think that it is 304 969 m sq but i still don't know how much fence wire i need foe the circunferance please ckeck my work and give me the correct answer

Ms. Sue Help me please!

Mrs. Miller sells a house for $179,000. If she earns a commission of 6%, how much money does she earn? Write a porportion and show your work. I don't understand how to do it, I have seen the other questions and I don't get how you got 1074000. Can this be explained?


Here are two pots. Diagram: Pot A- Height: 8cm Pot B- Height: 10cm Pot A and pot B are MATHEMATICALLY SIMILAR. The area of the base of pot B is 160cm2. Work out the area of the base f Pot A. My work: 1)Labelled POt B diagram as having area of abse of 160cm2 2)160*10= 1600cm2 3...

Math (check my work)

Angle A measures (x + 13) °. Angle B is complementary to angle A and measures (2x +23) °. a. Write and solve an equation to find the value of x. Not sure how to write the equation but the value of x = 18 b. What are the measures of angle a and angle b? angle a = 31° angle b...

Foreign languages

Writeacher, thank you very much! Can you please check these sentences, too? 1) They left for the supermarket a few minutes ago.My child is with them. They need to buy food for lunch and won't be back until noon. We'll spend the afternoon at home because it's scorching hot ...


What is the solubility of lead bromide at 25C? (Ksp = 4.6 x E^-6) You have used another name here but work the problem the same way I showed you for AgCl. The only difference is that PbBr2(s) ==> Pb^+2 + 2Br^- Post your work if you get stuck.


Does using (Fcos(theta))d work for this problem or should cos be replaced with sin? A cheerleader lifts his 66.4 kg partner straight up off the ground a distance of 0.718 m before releasing her.If he does this 27 times, how much work has he done?

Science, Maths

A block and tackle of 5 pulleys is used to raise a load of 5o kgf steadily through a height of 20m. The work against friction is 2000J.Calculate the work done by effort, efficiency and mechanical advantage.


The area of a regular pentagon with a perimeter of 35 units. Join the centre to each vertex to form 5 eq Join the centre to each vertex to form 5 equal triangles. Consider one of those triangles the central angle is 72º and each of the other two equal angles is 54º, and the ...


I'm trying this again, I'd like the quadratic form, so i can then work the intercepts myself. SO: what's the quadratic form of 1/4(x+3)^2-4 I need it to find the intercepts of the parabola it describes. Check: I think the parabola is 1/4 scaled, moved 3 to the left and down 4 ...

Math, Algebra,

Help! I can't understand or find out the answer, I tried but I keep getting lost! George rides a cab to work 3 days a week. He pays $3.50 for the cab to pick him up. He pays an additional fee for each mile driven. In one week, George paid $35.25. If he rides 11 miles each day...

Math(Please check)

Use the fundamental identities to simplify the expression. tan^2 Q / sec^2 Q sin^2/cos^2 / 1/cos^2 = sin^2 / cos^2 times cos^2 / 1 = The cos^2 cancels out so sin^2 is left. Is this correct?


a survey of 2000 people was giuven their mode of transportation to work each day, the pie chart below gives the results of people surveyed, how many traveled by bike to work?

Health Sciences

How could you relate work of podiatrist with speech and language therapist and occupational therapist? They are three different professions but the question asks about how they work together as a team


What is a work's theme? A. Is absolute B. can be interpreted by differently by different readers C. is always implied D. is usually state in the title I would pick B or D but im not sure what a work theme even is

Calculus help PLEASE

It is known that an object traveling in straight line with velocity function v(t) = t^2-t, where v is measured in meters per second. Find following. The position function s(t) when we know the position 5 meters after 2 seconds. I tried to work this out and got s(t) = (t^3)/3...


Assignment Testing a Theory Write at least 300 words describing a time when you had to test a theory. This theory may be something you have tested at work, school, or even at home. Answer the following questions in your summary: • What type of informal research method did ...


Iron -59 has a half life of 45.1 days. How old is an iron nail if the Fe-59 content is 25% that a new sample of iron? Show all calculations leading to a solution. Can you work the problem? I don't know how to solve for t!!! Please.


A 380- piano slides 3.8 down a 22 incline and is kept from accelerating by a man who is pushing back on it parallel to the incline. a.Determine the force exerted by the man. b.Determine the work done by the man on the piano. c.Determine the work done by the force of gravity. d...

math plz help!!!!!!

What do angles, acute angles, and complementary angles have in common??? they are all angles duh! my teacher said that that's too obvious Please check your book for the similarities. This site also has several explanations about the similarities. (Broken Link Removed)

help...solving a polynomial....algebra

solve this me....12x(squared)+7x-10 Do you wish to factor this trinomial? If so, the factors are: (4x + 5)(3x - 2) You can use the FOIL method to check. If this is supposed to be an equation: 12x^2 + 7x - 10 = 0 ...then set each factor equal to 0: 4x + 5 = 0 3x...


Wondering the answers to these: Find the value of each of the following. Leave your answers as fractions where appropriate. [I did these myself but need to answer-check] a) log[base4](1/8) b) 10^(-10log3) c) 2log[base3](9) d) log[base3](3)^(2x) ans: a) -3/2 b)(1/3)^10 c) 4 d)...

Physics -- check answers please

I am to fill in the blanks without a word bank, my answers are in brackets. 1. A ____ diffraction pattern is unique because it has a larger central maximum. (single slit) 2. the brightest, clearest diffraction pattern is created with a _____ (barrier)


integrate (x^2+8)/(x^2-5x+6) by partial fractions method. I first did long division, and came up with 1+((5x+2)/(x^2-5x+6)). Then I did partial fraction for (5x+2)/(x^2-5x+6) by going A/(x-3)+B/(x-2) and I got 17/(x-3)-12/(x-2) to take the integral of. But when I check online ...

Please check my answer(Social Studies)

In the Mayflower compact, why do the pilgrims "all due submission and obedience"? To show that they will remain sevants of God To show that they will follow the colony's rule•• To show that they will elect a colonial leader To show that they will follow the king of England

university of oklahoma

A 85-g bullet is fired from a rifle having a barrel 0.582 m long. Choose the origin to be at the location where the bullet begins to move. Then the force (in newtons) exerted by the expanding gas on the bullet is 15750 + 9900x - 27500x2, where x is in meters. (a) Determine the...

Introduction to the Criminal Justice System

There is a large round up of gang members, this is a federal case but is being supported by about 50 local officers and state troopers. I need help please, coordinating he informaiton for briefing on the jprocess at the federal court building. the briefing is to detail what ...

Science 8th grade

Please check my answer thanks A woman who recently came home from a tropical vaction now has abdominal pain and diarrhea// Her blod test show an elevated eosinophil level. Which of the following organisms is most likely the cause of her illness? A Bacteria B Worm C Virus D ...


please check: One of the characteristics of postmodern fiction is the use of a. linear, chronological plots and standard methods of character development b. nontraditional forms that blur the boundaries between fiction and nonficitioin. c. themes advancing the idea that life ...

Grammar and Composition

please check my answers: write the plurals of the following singlular words. 1. guess : guesses 2. tongue : tongues 3. attorney-at-law : attorneys-at-law 4. theory : theories 5. leaf : leaves 6. tomato : tomatoes 7. mouse : mice 8. beach : beaches 9. piano : pianos 10. monkey...


Can you please help me check these school rules in case of an evacuation? 1) During an evacuation you have to (must?) 2) stay calm 3) queue with the respective openline and closeline 4) go calmly to the nearest emergency door 5)if you need, go down the stairs, always quietly 6...


Which of these words has the same denotative meaning a, but a different connotative meaning than, the word COPIOUS. A. meager B. abundant C. lavish ******* D. sparse An award is given every year to the student ______ has the highest grade-point average. Which of these ...

Social Studies Check Answers Please

What was a common thread in the fall of communist regimes throughout Eastern Europe? A) a decline in education and health care B) poor economies and demands for more rights C) a lack of strong leaders in communist governments D) support for military alliance with the United ...


Would you please check my answer to make sure I did it right? Bus travel, a bus company finds that monthly costs for one particular year were given by C(t) = 100 + t^2 dollars after t months. After t months the company had P(t) =1000 +t^2 passengers per month. How fast is its ...


1. how much work do you do on a 25-kg backpack when you walk a horizontal distance of 100 m? -I got 2,500 J 4. if you friend pushes a lawnmower four times as far as you do while exerting only half the force, which one of you does more work? how much more? ( I don't understand ...


China has implemented a campaign to reduce birth rates that includes _____________ rewards for single child families. Please check your assigned reading and post your answer. We'll be glad to help you when we see your thoughts about this subject. great? Yes. The rewards are ...


please check my answer thanks :) Which sentence is the hypen used correctly? 1. Molly- my beagle- loves to fun in the field. 2. She wore her hair in a closely-cropped style. 3. Jan's house was painted light-blue 4. We stayed at a first- class hotel. I picked light-blue


please check this President Wilson convinced the Allies to a. divide the spoils of war among the victors b. accept his plan for the League of Nations c. make Germany pay heavy war reparations d. allow Germany to keep its overseas colonies i'm stuck between b and C but i think ...

Algeblease check my answer

Posted by Annie on Monday, October 18, 2010 at 7:20pm. Choose the equivalent expression(3h^-2j^3k)^2(hj^-5k^3)^-2 The signs that look like minuses are negative signs Answers: 3h^-6j^16K^-4 9h^-2j^5j^16k^-4 9h^-6j^-4k^-4 9h^-6j^-4k^-4 Please help I'm so lost right now-Ireally ...

science review

since tomorrow is my test. Please check: seed coat- skin covering the seed to protect the inner parts Hilum- ? cotyledon- where nutritient is stored inside the seed embryo- part of a seed that grows into a plant. it include roots, leaves, and stem?


Will you please check my answers? 1. What is the capital of South Carolina, the first state to withdraw from the Union before the Civil War? Columbia, South Carolina 2. Which Scandinavian country has the highest overall elevation? Norway 3. What color is used to show bodies of...


Can someone please help me check the grammar in the following sentences? 1) I would like to inform people about the danger (after effects?) of having a nuclear power station near our town 2) I hope you will listen to our advice. 3) Animal and plant species will be in danger.

check my science hw please.

31. Which of the following is an example of a global environmental choice? A. a student deciding to ride a bicycle to school B. a family deciding to recycle their newspapers C. a town meeting about a new nature refuge. D. nations meeting to discuss the ozone layer. I got C as ...


Please check! 1. What was the effect of the rise of unions in the late 1800s? a. The population in cities quickly grew.*** b. South Carolina developed many unions prior to World War I. c. Workers had more bargaining power with management. d. Living conditions in cities ...

Social Studies

What were the effects of the interstate highway system? caused decline in air connected surban areas to metropolitan areas 3.highway constructions projects created jobs enabled people to drive longer distances at faster speeds my best answer is 1 and 3 can u ...


Two blocks are connected by a very light string passing over a massless and frictionless pulley (the figure ). Traveling at constant speed, the 20.0- block moves 70.0 to the right and the 12.0- block moves 70.0 downward.During this process, how much work is done on the 12.0- ...

Work Experience

To do work experience, do you have to be a certain age? Any sites anyone could recommend?


how can i show my work by long division by dividing8 from 100 show work.

English - Native speakers

Is it correct to say Is he at work now or Is he now at work?


Last year, the personal best high jumps of track athletes in a nearby state were normally distributed with a mean of 229 cm and a standard deviation of 19 cm. What is the probability that a randomly selected high jumper has a person best between 229 and 248 cm? According to a ...

college physics

Interestingly, there have been several studies using cadavers to determine the moment of inertia of human body parts by letting them swing as a pendulum about a joint. In one study, the center of gravity of a 5.0 kg lower leg was found to be 18 cm from the knee. When pivoted ...

Someone Please Check My Answers?!?!?

18. Which action during westward expansion had the most negative impact on the lives of slaves? A.) The Fugitive Slave Act**** B.) The Mexican-American War C.) The Treaty of Washinton D.) The Missouri Compromise 19. Which answer best describes why towns and cities were built ...

Math (quick check plz)

hi i rearranged these terms into y=mx+b can you plz check and see if they're right? 1. 2x+5y-16=0 2. 4x-3y-6=0 3. 3x+y+2=0 1. 5y=-2x+16 2.3y=-4x+6 3. y= -3x-2 tnx ^^ On the first two, you need to divide each side by the coefficent of y. On two, what happened to the negative ...


Identify the sentence that is correctly punctuated. A. It is not always necessary; however, to check the entire set of books. B. It is not always necessary, however; to check the entire set of books. C. It is not always necessary, however, to check the entire set of books. D. ...


Identify the sentence that is correctly punctuated. A. It is not always necessary; however, to check the entire set of books. B. It is not always necessary, however; to check the entire set of books. C. It is not always necessary, however, to check the entire set of books. D. ...


Identify the sentence that is correctly punctuated. A. It is not always necessary; however, to check the entire set of books. B. It is not always necessary, however; to check the entire set of books. C. It is not always necessary, however, to check the entire set of books. D. ...

geometry please please please help

What is the value of x in the regular polygon below? hexagon with an interior angle value of 3x please please help and thanks in advance. :)


Please check A number m decreases by 4 m-4 A number d divided by k,minus 6 D/k-6 A number b less 8 B-8 The sum of a number m and 10 M+10 18 divided by a number r 18/r 32 decreased by a number n 32-n A number k increased by itself K+k


Find of g(f(x)) when f(x)=sqrt(x+3) and g(x)=(x^2+2)/x. a. g(f(x))=(x^2+2)(sqrt(x+3))/x b. g(f(x))=(x+5)/(sqrt(x+3)) c. g(f(x))=(x^2+6x+11)/(sqrt(x+3)) d. g(f(x))=(sqrt(((x^2+2)/x)+3) Every time I work this problem, I get some crazy answer. Can someone please help me?

Health Law

please check my answer thanks :) Peter Jones sues Dr Bob for malpractice. The jury believes Dr Jones was guilty of malpractice but doesn't believe Peter was affected Peter is entiled to what type of damamges ? I think punitive damages

history- civil war

What did Abraham Lincoln mean by saying slaves represented money? He meant that without the slaves the South would have no income. The more slaves they had, the more income. Please check if this is correct. Thanks.


Can someone please check my work? Use possessive adjectives to write complete sentences about Miguel's family. Follow the model. modelo: tú/padres/ser/simpáticos: Tus padres son simpáticos. 1. yo/hermanos/ser/altos: Mis hermanos son altos. 2. usted/tías/vivir/lejos: Sus t...


I left out these other sentences. Thank you very much, Writeacher. 1) If I'm lucky, I'll work at a passion and at the same time at a career. I think that a good job is a job that you love and that permits (?) you to do the things you are keen on. 2) I have the ambition of ...


Can you please check the following sentences? I had left them out. Thank you. 1) They fell out over something really stupid but made up a week later. (or made it up?). Her friends will never let her live it down. 2) They have been going out with each other for two months.

Organic chemisty(Please check)

When drawing a kekule structure for CH3CH2OH(alcohol) do I leave the OH at the end just like it is (OH) or would it be shown as O-H? I know that to start of it would be -C- with an H on the top and the bottom as well as the left side and then connected to the C would be ...

8th Grade Math

The temperature in Toronto at noon during a winter day measured 4°C. The temperature started dropping 2° every hour. Which inequality can be used to find the number of hours, x, after which the temperature will measure below -3°C? Can you please check my answer? 4−2x&...


I have to design a procedure which will allow me to calculate the applied force(thrust) of a stomp rocket. We are allowed to use tools to find measurements. So far, I have calculated the height that the rocket reached (22.5) m using trig. (right angle triangle where one angle ...


Lachlan can finish a work in 45 minutes. Claire works twice as fast as Lachlan. If Lachlan and Claire work together, it will take X minutes to finish the work. What is x minutes?

9th grade Math

(7n-1)/(8)=6 Okay, I think I add 1 to both sides, so now I have.. (7n)/(8)=7 And then, to get n by itself I divide 7 into both sides, so now I have.. n/8=1 n=1 is what I get, but I'm not sure, could someone please check this for me?


1. What Don saw was a laptop. 2. I don't believe what Don said yesterday. 3. This is what Don wanted to have. 4. What Bill said was not true. 5. I don't have what he asked for. 6. That is not what Bill wanted. (Are they all grammatical? Check the sentences, please.)

Algebra 1--Please, check my answers!

Multiply. Simplify your answer. 1. (n + 3/n- 5) x (n^2 - 5n) A: n^2 + 3n 2. (6xy^2/2x^2y^6) x (6x^4y^4/9x^3) A: 2 3. (3h^3 - 6h/10g^2) x (4g/g^2 - 2g) (This is the correct expression. There is no typo.) A: ? 4. (m^2 + m - 2/m^2 - 2m - 8) x (m^2 -8 + 16/3m -3) (This the correct...

check my science hw please.

26. In the last few centuries, the number of species becoming extinct on Earth has A.decreased dramatically B. decreased slightly. C. increased slightly. D.increased dramatically I think it should be C.


What do you do to check whether a number is rational or irrational? How does finding the square root of a number compare to finding the cube root of a number? Use the number 64 in your explanation. Can someone please help me with these questions?!

please check--intro to finance

______ is the price a firm paid to acquire an asset. a) book value b) market value c) markup price d) fair value --------- My answer is B. market value


what is 100.00 +1.002.00 Please check your problem. 1.002.00 is not a standard way of writing a number. We don't use two periods in a number. 1002.00 1002.00 + 100.00 = 1102.00

Math please check

Identify the amount in the following application In a shipment if 1200 parts, 60 were found to be detective. What percent of the parts were faulty? a. 60 b. 1200 c. what percent d. shipment answer: c


Could you please check my answer? If the accident happened on the 8th of November and then Trent spent 3 weeks and 1 day in hospital, on what day did he get out of hospital? ANSWER: 30th of November


The nurseryman brought six different varieties of trees to plant in six locations in the park. In how many different ways can he plant the trees Please check my answer = 720

Spanish 1-Please check my answer

Eres mayor o menor que tu hermano? Would I say Soy mayor que tu hermano. if I was older than him? or should I say something else? Thank you

mass media

what is today's publishing conglomerates and the organization of todays'publishing industry? Please note that we don't do students' homework for them. Our tutors try to give you the information to help you complete your assignment on your own. If there's not a tutor with this ...


Please correct my work please: This is what I'm working on: Command form(imperative mood)negative familiar/polite. I have to change the following affirmative commands to the negative form. (write the word no, the object pronoun(s), and the negative command in the spaces to the...

Universe and the Stars-Please Check

Give 2 reasons y elliptical galaxies are considered to be older & more evolved than spiral galaxies. They are considered to be older because they have little instellar matter and because they rarely form new stars like the other galaxies do. They seem to be more evolved than ...

Math-Sorry I had a mistake in the first problem.

Please check my work: Label the dependent and independent variable. 1. Time spent studying and Score on a test 2. If a scientist conducts an experiment to test the theory that a vitamin could extend a person's life expectancy. What are the dependent and independent variables? ...


Naomi and 50 red beads and white beats the number of red beads is one more than six times the number of white bees how many red beans does Naomi have. What does one more than six times the number of white beads mean coming from me Alexis I do not know how to show my work you ...

someone correct my work please? fun, fun chemistry

Okay. I'm very, very confused. The initial question is: predict the products of the electrolysis of a 1 mol/L solution sodium chloride. This is my work: The four different possible equations are: 2H2o + 2e- -------> H2 + 2OH- (V= -0.83) O2 + 4H+ + 4e- -------> 2H2O (V= 1...

5th grade LA

Can you check these? Find the prepositional phrase in each sentence. Circle the preposition, and underline the object of the preposition. 26. After it was fixed, he thought about how to make it work better. prep: about obj: ? 27. The engine needed a lot of water in it to make ...

help with controls

Please help us. Our experiment involved the formol titration of hydrolyzed and unhydrolyzed peptides, to determine the amino acid sequence of a polypeptide chain. We also did work with silica strips to determine the Rf values of amino acids. What are the controls for our ...

Math (Trig Question)

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

pre calc

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


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


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

Math Trig

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


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


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


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


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


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