Trig check my work please?

88,487 results, page 89

math

Determine the value of k in y=kx^2-5x+2 that will result in the intersection of the line y=-3x+4 with the quadratic at a) two points (1 mark) b) one points (1 mark) c) no point (1 mark) Here's my work on it: kx^2-5x+2=-3x+4 kx^2-2x-2=0 a)b^2-4ac (-2^2-4(1)(-2) (-4--8) (4) Can ...

math

Two circles have a radii of 15 and 95. If the two external tangents to the circles intersect at 60 degrees, how far apart are the centers of the circles? Can someone please explain this to me, show the work and give me the answer. Thanks!

math

Two circles have a radii of 15 and 95. If the two external tangents to the circles intersect at 60 degrees, how far apart are the centers of the circles? Can someone please explain this to me, show the work and give me the answer. Thanks!

social studies

How did Muslim Turks influence turkey's development? Can someone give me a useful link NO ONE GIVE ME A THE ANSWER PLEASE TRYING TO DO MY OWN WORK!! mrs.Sue can you give me a link

Math

Hey, I just need my answer checked. Simplify: y to the 4th power times y to the 3rd power y to the 1st power y to the 7th power ** y to the 12th power y to the 43rd power correct? If not, please show work for me. thanks.

math

Given the linear equation y=-3/2x+1, find the y-coordinates of the points (-4), (-2), and (6). Please show all of your work. Plot those points and graph the linear equation.

math

Given the linear equation , find the y-coordinates of the points (-6, ), (-3, ), and (3, ). Please show all of your work. Plot those points and graph the linear equation.

algebra

Given the linear equation y=-3/5x-4, find the y-coordinates of the points (-5, ), (0, ), and (5, ). Please show all of your work. Plot those points and graph the linear equation.

Orthocenter Question

Triangle ABC has vertices A(0,6), B(4,6) and C(1,3) Find the orthocenter of triangle ABC. Please show your work so that I can understand how to do this type of problem. Thank You I really appreciate your help ^_^

pre calculus

The graph of a one-to-one function is shown below. Draw the graph of the inverse function, f^(-1) , and submit it to the Dropbox. Please show your work

US Government

What is a modern day example of separation of powers at work? All I can find is the US government but I need an example of it being used not it being describe. Please help.

Algebra 2 (Quadratic Equations)

Is the point (-3, -2) a solution of the intersection of the following set of quadratic equations: Y < -X^2 X^2 + Y^2 < 16 I'm not sure how to actually work this problem out. Can anyone help me with this problem please.

math hw

in 1997 there were 3344 amusement parks in the u.s.. this decreased by 148 in 2002 then grew by 47 by 2008 how many amusement parks and arcades were there in 2008? please show work

MATH

LAST YEAR BOB'S AGE WAS A SQUARE NUMBER AND NEXT YEAR IT WILL BE A CUBE NUMBER. HOW OLD IS BOB NOW ? PLEASE EXPLAIN HOW YOU WORK IT OUT ,THANKS

college algebra

form a polynomial f (x) with real coefficients having the given degree and zeros. degree 5; zeros 5; -i; -6+-i f(x)= a(?) Please show step by step work.

Physics..

A container of gas is at a pressure of 1.3x10^5 Pa and a volume of 6.0m^3. How much work is done by the gas if it expands at constant pressure to twice its initial volume? Please help me I really don't know what to do,,,

Trignometry

Can you please help me prove that ((1-cosx)/(1+cosx))=(cscx-cotx)^2? I can only do work on one side to prove that its end result is equal to the other side.

Chem.

Can you also check this one, Please and thank-you! 23. Acetylsalicylic acid, commonly known as ASA, is the most widely used drug in the world. ASA has the chemical formula, C8H7O2COOH, and a Ka of 3.27 X 10 – 4 mol/L. What is the pH of a 10 mol/L ASA solution? The pH of the ...

math

can you please check my answers? 12, 20, and 35 LCM =420 1/3+5/12+4+5=60 LCD 13/15-11/20=19/60 What is the combined price for a 1/2-in. sheet and a 5/8-in. sheet? 1/2PRICE $17.88 5/8 PRICE$19.13 =37.01 1 1/15+3 3/10-2 4/5=1 17/30 5 1/3+2 1/4+3 1/2=11 1/12 The interest rate on ...

please check my answers Ms Sue!!!

Using NOT when searching allows you to ______? search for subtraction math games eliminate unwanted topics to narrow down for search search for more than one topic narrow down your topic by combining words**

World Studies

Why was the Civil War important? Why was World WarII important? Please answer my questions! http://en.wikipedia.org/wiki/World_War_I http://en.wikipedia.org/wiki/World_War_II Please note that we are not here to do students' homework for them. Our tutors try to give you the ...

pre-calculus

given x = 1,110 degrees Find sinx, cosx, tanx, cotx, secx, cscx, without using a calculator. Each result should be a fraction. No decimals involved... I don't even know where to begin, i missed a class, so please explain the work fully, Thanks kenny

Physics

1. A 38kg object is traveling down the ramp and experiences a frictional force of 180N. Calculate the angle of incline and the friction coefficient between the two surfaces. Answers: μ(mu)=0.55 Θ=28.9 degrees But please show work and all equations/variables used.

chemistry -check over work

Naphthalene (C10H8)is a solid aromatic compound often sold as mothballs.The complete combustion of this substance to yield CO2(g)and H2O(l)at 25 ْC yields -5154 kJ/mol. A. write balanced equation for the combustion of C10H8. C10H8+12O2->10CO2+4H2O ΔH =-5154 B. ...

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 density of chlorine gas at 22C and 1.00 atm pressure.

physics help!

When a gas follows path 123 on the PV diagram in a rectangle shape labeled 1234 cycle, 449 J of heat flows into the system and 179 J of work is done. What is the change in the internal energy of the system? * I keep coming up with 270 but this is incorrect. PLEASE HELP :)

PHYSICS NEED HELP ASAP

A race car moving at 157km/hr decelerates at -7.00 m/s^2 to a speed of 75.0km/hr A) how long did this take? B) how many meters did the car travel during this deceleration? I attempted this problem many times and i don't seem to get the correct answer please show all work thank...

math

Could someone please check my work? I would really appreciate any help! here are the instructions ~~ Write an equation to represent these real-life situations in which the variable is on the left side of the equation with an operation and a number. Then solve the equation ...

Algebra 2

Absolute Value Equations Will someone please check to see if I am doing this correct? 1.|7x+2|=10 x= (8/7) or (-12/7) 2.|3x-5|=-1 I got "no solution" because "d" cannot be negative. 3.|x^2-2x-16|=8 x= 6,-4 or x=4,-2 4.|3x-2|=7 x= 3 or (-5/3) 5.|x^2+2x+1|=-4 I got "no solution...

Math

Hi guys! I am desperately in need of help. I really need to do good on this test but I am uncertain if I am doing this portion correctly. Can someone check my work? 11. Which inequality matches the graph? (The dot on the graph is at 1 and the arrow is pointing that way <...

8th Grade Algebra-Radicals:Answer Check

Write each expression in simplest form. ( means square root 4. 3(11 + 4(11 Answer: 8(11 7. 7(2 - 2(8 Answer: 1(2 ?? 8. (48 + (75 Answer: 9(3 9.(3(10) Answer: 19 + 6ã10 10. (27/64 (Fractions) Answer: 3(3/8 ?? 11. 10(20 - 3(80 Answer: 10(5 12. (6/49 (Fractions) ...

algebra

Megan factored the expression 72x^2-43x+6 as (9x-3)(8x-2). But when Jacob applied the FOIL principle and multiplied out (9x-3)(8x-2), he got72x^2-42x+6; thus, Megan’s solution does not appear to check. Why is that? Please help Megan to understand this better. Explain your ...

Algebra

Megan factored the expression 72x^2-43x+6 as (9x-3)(8x-2). But when Jacob applied the FOIL principle and multiplied out (9x-3)(8x-2), he got72x^2-42x+6; thus, Megan’s solution does not appear to check. Why is that? Please help Megan to understand this better. Explain your ...

Writing:Quotes, Journal

Please may you check my answers for a quote that says---> Knowledge speaks, Wisdom listens.<--- My answer to that quote is this ---> This quote indicates that people with knowledge will give aedvices to people, and people that listens to the individuals are wise to do...

English

Thank you. Could you please check these sentences, please? Thank you. 1) Storm is a participant in the triathlon competition. She is going to reach (I don't know the correct verb) the finishing line. She is wearing a pinkish half zip-up T-shirt with an orange T-shirt under it...

English

Thank you really much. Here are some more sentences I'd like you to check. 1)Victorian refers to a set of moral values which were established during the reign of Queen Victoria. They were based on personal duty, hard work, respectability and charity. ) 2.Respectability was a ...

Adverbial Phrase

Q1. My mother and I did some gardening,and _______ we relaxed on our front porch, admiring our handiwork. a. last b. afterwards c. first Ans: a. last Q2. I bring my pet snake to the vet for a check-up every ______. a. Sundays b. days c. week Ans: c. week Q3. It's a pity - I ...

U.S. History

1.in what ways did the colonies and Britain benefit from triangular trade? 2.Name two places enslaved Africans were sent to and what types of crops were cultivated in each place for the second one i got West Indies:sugar, molasses and North America: rum, guns please help with ...

Intermediate Algebra

Andrews factored expressions -6x63+9x^2-3x as -3x(2x^2-3x-1). But when Melissa applied the distrubutive law and multiplied out -3x(2x62-3x-1) she got -6x^3+9x^2+3x;thus Andrews solution does not appear to check. Why is that? Please help Andrews to understand this better, ...

Algebra 2 Linear Programming

I think this is an easy question but i just wanted make sure i have the right answer Could you check my work Some students make and sell jewelry in their spare time. Every week they have an avaiable 10,000 beads of various colors and sizes. They only have 20 hours to work on ...

student supervision

what is another name for the illness known as pediculosis? (a)chicken pox (b)ringworm (c)strep-throat (d)head lice(my answer) who does most of the talking in a student conference? (a)student(my answer) (b)teacher (c)teacher aide (d)parent when your checking out books where ...

MORE LANGUAGE ARTS URGENT

Because she wants to go to medical school, Becky will need to take extra science classes, and she also wants to learn Latin. The sentence above is a A. compound sentence. B. complex sentence. C. compound-complex sentence. D. simple sentence. I think..... it's A.... or C I ...

L.A

In which sentence is the meaning of the word inarticulate best expressed? A. he impressed the audience with his inarticulate expressions B. the young girl was exceptionally animated and inarticulate. C. she had many ideas to share, but she was an inarticulate speaker*** D. the...

Physics-totally bewildered!!

I have a physics question. This is for extra credit which I really need to earn- If I made a solar cell how would I know which material is best to use if given choices like aluminum with a work function of 4.1eV at a cost of 2.40Kg or platinum with a work function of 6.4 eV at...

science

If a cement block that weighs 50 N must be raised to a height of 5 m, how much work must be done on the block? Work=weight*heightincreased

math

Number problem. You work 7 hours (h) one day, 5 h the second day, and 6 h the third day. How long did you work, as a fraction of a 24-h day? A-18/24?

maths ( mental ability)

P can do a piece of work in 9 days. Q is 50% more efficient than P. The number of days it takes Q to do the same piece of work is?

Algebra

Quick Question, when would an inequality like this work: x^2 - 4x >or equal to 0? ...What would I have to do to figure out when this would and would not work?

Algebra

Quick Question, when would an inequality like this work: x^2 - 4x >or equal to 0? ...What would I have to do to figure out when this would and would not work?

physics

A 2.9-kg cart starts up an incline with a speed of 2.7 m/s and comes to rest 3.0 m up the incline. The total work done (the work of the net force) on the cart is:

literacy

plain language searches do not work in expanded academic asap and may not work in other periodical databases because periodical databases

physics- work

what is the work required to raise a 10-kg bucket from a well 100-meter deep? Is this right? 10*9.8= 98N 98N*100= 9800J

Math

Lucy has to work 40.0 hours this week. She has worked a total of 32.8 hours. She reported to work at 7.55 am. What time will Lucy get off today?

Math

Please check my answers I think they are right if not please tell me where I went wrong. Thanks The annual net income of general electric for the period 2007-2011 could be approximated by P(t) = 3t^2- 24t +59 billion dollars (2<t<6) where t is time in years. a) compute p...

Trig hep, please? Thank you!

1. Find the exact value of sin(195(degrees)) 2. If cot2(delta)=5/12 with 0(<or =)2(delta)pi, find cos(delta), sin(delta) , tan(delta). 3.find the exact value of sin2(x) if cos(x)= 4/5. (X is in quadrant 1) 4. Find the exact value of tan2(x) if sin(x)=5/13. ((X) in quadrant ...

Math repost for edie

Math - edie, Tuesday, March 11, 2008 at 5:11pm The area of a square is 25 square meters. What is its perimeter? Please show all work

Chemistry-TITRATION

A titration of 15.0 cm3 of household ammonia, NH3, required 38.57 cm3 of 0.78M HCl. Calculate the molarity of the ammonia. please show work and detail.

Physics

I have a follow-up to my question at 4:10 about work because I still can't figure it out. F-F(friction)=ma F-F(friction)=2*3 F-2.5=2*3 F=2*3 + 2.5 W=Fd W=(2*3 + 2.5)4 Distributing the "4" I get W=2*3*4 +2.5*4 Please help in pointing out where I have gone wrong. Thanks

Maths

If y is a function of x and z = e^z, show that: x (dy/dx) = (dy/dz) and (x^2) (d2y/dx2) = (d2y/dz2) - (dy/dz) I managed to work out the first part. But I don't know how to prove the second part. Can someone please show me how? Thanks!

statistics-normal approximation, distrubution

find the normal appproximation for the binomial probabiolity the x=5,where n=12, and p= 0.7. compare this to the value of p(x=5). *please show calculations and work. want to compare my calculations. thank you. mary

MATH(quick Help please)

Out of 42 kids in a class twice as many failed Ela as math,4 failed both. If 7 failed neither, find how many failed each subject. Show work thanks

math

Solve. Please show all of your work. Find the length and width of a rectangular lot with a perimeter of 108 meters if the length is 8 meters more than the width.

Math

My home work asks "what is the five number summery of a datta set? How is it used to mAke a box plot?" But i frogot what a five number summery is please help.

CHEMISTRY HELP !!!! Show work please!

Compute the energy released in kilojoules when the sun converts 1.00 metric ton into energy. NOTE: 1 metric ton = 1000 kg.

Please Help!

A viewer examines a work of art in a style he normally does not appreciate. This is an example of what type of action? A) Reluctant Consideration B) Creative Consideration C) Respectful Consideration D) Creative Consideration

Math Algebra

Ann is 8 years older than Dawn. Dan is 5 years younger than Dawn. The sum of their ages is 108. How old is Dan? Please explain work too.

math UNIT RATE

an 8 ounce can of tomatoes costs $1.14. an 12 12 once can costs $1.75. which can of tomatoes has the better unit price? PLEASE SHOW WORK

Algebra 2

How many liters of water must be added to 8 liters of a 40% acid solution to obtain a 10% acid solution? Please Show All Work!

Precalculus

let the function g be defined by g(x)=1-5x if the domain of the function of g is {x-3 is less than or equal to x which is less than or equal to 2} what is the smallest value of the range show work please

physics

what happens when light moves from a material with a lower index of refraction to another material with a higher index of refraction? please sho work and thank u

Math - Real number system

Solve the following equation in the real number system. Please show all of your work. x^4 + 6x^3 + x^2 - 24x - 20 = 0 Help!!!!

Math

The cafeteria has 4 cases of tuna and 9 single cans of tuna. In all,there are 65 can of tuna. How many cans of tuna are in a case? (P.S.-PLEASE SHOW WORK...I NEED HELP!Thank You!)

algebra

a recipe requires flour and sugar in a 3:1 ratio. if the flour required is 2 3/4 cup, how much sugar is required? show work please.

chemistry

You are given a 500 mL stock solution of 10%CaCl2 and are askes to prepare a 50 mL solution of .5% CaCl2. How would you prepare it? Please show work

Math 2

You should make two selections from the list below. Which two of the four equations represents parallel lines? 2x - 3y = -10 6x - 9y = 15 3x + 2y = 10 9x + 6y = 30 i think it's the second one Parallel lines have the same slope. Rework your equations to be in the form y=mx + b ...

CHECK THIS OUT

"Drug use is information that is rightfully private and only in exceptional cases can an employer claim a right to know about such use." What are your thoughts? Please be aware that we are not here to do your homework or give you answers. Once you re-post with YOUR thoughts on...

check my work

1. Which of the following best exemplifies how Congress’s use of its weights and measures powers plays an important role in business transactions? (1 point) With uniform and consistent standards, producers are allowed to charge different prices for a pound of flour. With ...

ELA

Help me understand This question asks you about your work in your reading character role. You may use your novel to help you answer the question. Think about the work you completed in your reading character role. Determine the ideas that would be most worthy to share in letter...

Reverse Equations

a four-component mixture was extracted. In the mixture was R-phenol, RCOOH, RNH2 and R-(C=O)-R in solution with ether and aqueous NaHCO3. RCOO-NA+ was separated out on the water layer. Aq. NaOH was added to the ether layer and R-benzene-O-Na+ was separated out in the water ...

English

Can someone please help me with this, let me know if the below looks correct? Improving Your Writing. Section 1 Facts and Figures that define the problem (the cause) Details that show the impact of the problem (effects) on Jack, Ruth, and the company. Section 2 The steps ...

English

Posted by rfvv on Saturday, March 11, 2017 at 6:51am. What is the part of speech of "for my birthday" in each sentence? An adverb phrase or an adjective phrase? Would you check them, please? Can a phrase be either an adjective phrase or an adverbial phrase? Thank you. 1. What ...

Exceptional children

Can you check my answers please Adaptive behaviors are a.) the same as fuctional skills b.) different from functional skills c.) exclude functional skills or d.) include functional skills. this is tricky for me but i'm guessing d.) include funtional skills. Does this sound right?

Simplifying Rational Expressions4x-12/4x

These are the answers i wanted corrected: 4x12/4x d+7/d^2-49 t^2-25/t^2+t-20 2x^2+6x+4/4x^2-12x-16 6-y/y^2-2y-24 You will have to use brackets to show the intended order of operation. How can we 'correct' your work if you supply neither solutions nor answers? I will be happy ...

government

in the role of servant to their constituents, members of congress a. work for their political party b. oversee the work of the executive branch c. screen bills for action by the whole house or senate d. help people from their district or state deal with the national government d

math

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? When might you use ...

Algebra 1B

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? When might you use ...

Alegreba

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? When might you use ...

college

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? When might you use ...

algebra

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? When might you ...

Chemistry

Jack drives 6.45 km to work and his car gets about 0.0147 km per gram of gasoline. Using the balanced chemical equation (you need to find out this equation by yourself), how many grams of CO2 is produced in this trip to work

business

Leadership. Topics based in this research area may consider leadership styles, relationships, behaviour, followership, and anything else that works or doesn’t work as it related to having work conducted through others. what would be a good thesis for this topic

ENGLISH

how to put emphasis on highlighted words ? 1 Are you going to wear " this dress " at the reception ? 2 "Ann" put up the Christmas decorations 3 why can "you" never be at work on time ? 4 "John" looks after the children when Shelia is at work 5 "Where" did you spend your ...

trig

The angle of elevation to the top of a very tall Building is found to be 15° from the ground at a distance of 1 mi from the base of the building. Using this information, find the height of the building

trig

Given theta is in the standard position and is in the first quadrant , if the terminal side of the angle theta is parallel to the line on ,find the measure of theta in degrees.

trig

Given theta is in the standard position and is in the first quadrant , if the terminal side of the angle theta is parallel to the line y=x+4 on ,find the measure of theta in degrees.

trig

The angle of elevation to the top of a very tall Building is found to be 9° from the ground at a distance of 1 mi from the base of the building. Using this information, find the height of the building.

trig

The angle of elevation to the top of a very tall Building is found to be 9° from the ground at a distance of 1 mi from the base of the building. Using this information, find the height of the building.

Maths trig

Use compound angle formulae to express Second harmonic i2= sin2t and the the third harmonic i3=sin3t in terms of the first harmonic sint

TRIG

A WORKER PRESENT SALARY IS 24 PER ANNUM HIS ANUAL INCREMENT IS 10% OF HIS BASIC SALARY WAT WUD BE HIS ANNUAL SALARY AT THE BEGINNIN OF THE THIRD YEAR

microsoft 2013

10. David has a small business and is working on an Excel worksheet to help manage his inventory. David realizes cell E14 has the wrong output. To check the problem, David should first select cell E14 and look at the _______ to check the formula. A. range B. Formula bar C. ...

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