Trig check my work please?

89,037 results, page 57

Algebra check+help?

Write the equation so that y is is a function of x. 1) 5x+4y=10 Would you minus the 5 from the 10 first? and 4y=5-10? Because she only wants us to write the equation, not exactly solve for it. And doesn't want us to overthink. Could I please have someones help? Thank you. -...

Math(Please check)

Find the slope of the graph at y=sqrt 2x^2 +1 at the point (2,3). First I plugged 2 into the equation and got 3. Then the derivative of the equation is 4x and then I multiplied that by 3 and got 12. Is this correct?

Algebra II-Please check calc

How many ways can a teacher arrange 10 students in a front row if there are 60 students I think I do 60!/50! = 2.74 *10^17 How many ways can you choose committee of 7 from a total of 20 (20 nCr7) = 77520

calculus

I am learning derivatives and I despise having to use the definition of the derivative. Please check my answer for this particular one! it is different from the one I get by differentiating. The question: f(x) = 2+x / x^3 my answer: -6x^2-2x^2

math

would you please check these for me thank you. +6+-5--4= 5 also Sara only has dimes and nichels in her coin jar,they are ina ratio of 3 to 5.If she has 120 coins in the jar,how many are dimes? 45 correct??

Check Fib. Number problem please

For any prime number p except 2 and 5, either Fp-1 or fp+1 is divisible by p. If I showed that this is true for p=7, the answer should be F8---is this correct because f8 is 21. P=11 would be divisible by 55 which is F10.

Math! Please check!

Name the intersection of planes ADE and BEA. A- plane BED B- plane ABC C- line BD D- line AE My choice is D. (Sorry that I could not post an image)

Math

Which is NOT true about the Table? x: 1 | 2 | 3 | 4 | y: 1 | 4 | 9 | 16 | A. it shows a linear function B. x increases by 1 each time C. the rate of change is not constant D. y increases by a different value each time D please check

Chemistry(please check my answer)

Which of the following is an oxidation reaction? A. AuCl4- → AuCl 2- **** B. Mn7+ → Mn2+ C. Cl2 → ClO3- D. Co3+ → Co2+

English

In a research-based paper it is sometimes OK to quote directly from a research source without any attribution. True False I say False. Please check my answer.

Language Arts

Circle the correct form of the pronoun. 7. Both John and Jim said (he, they) were not exercising regularly. Circle they 8. The jury was asked to return to (its, their) seats. Circle their 9. Please remind each student to bring (his or her, their) homework tomorrow. Circle ...

Statistics - Central Limit Theorem

Actually I'm asking this question because I found my answer for the HW question somewhat weird, but I still can't determine where did I make mistakes. Given: A basketball player can score on a particular shot with p = 0.3. Let S be the number of successes out of 25 independent...

Social Studies

What agreement set the official border of the Louisiana Territory between Canada and the United States? A. Rush-Bagot B. Monroe Doctrine C. Adams-Onis Treaty D. Convention of 1818 Can you please check this, my answer is C. Am I right?

E.L.A. PLEASE CHECK!

In which of the following sentences is the subject understood? A- Slowly taxiing up to the terminal was a huge airplane. B- It was painted with pink stripes and yellow circles. C- Step up to the desk and give the clerk your ticket. D- You are on your way to a special place. I ...

sociology

All of the following reasons cause a variance in divorce rates among segments of the population in the United States, except: (Points : 3) 1. Age at first marriage 2. Education 3. Race and ethnicity 4. Social class <-------- Please check my answer.

Social Studies

what was the purpose of the constitutional convention held in philadelphia in 1787? A.To sign the treaty of paris B.To select the nation's new president. C. to revise the Articles of Confederation D.to draft a declaration of independence My answer is c @Ms.Sue can you please ...

English

Evaluate which of the following is the best example of a summary. A.In Goldilocks and the Three Bears, a character named Goldilocks sneaks into a home owned by bears. She eats a bowl of porridge and falls asleep in the house. When the bears return, Goldilocks awakens. ...

Geometry

Please Help! How do I work this? The Volume of the box is represented by (x^2+5+6)(x+5). Find the polynomial that represents the area of the bottom of the box.

Geometry

Please Help! How do I work this? The Volume of the box is represented by (x^2+5x+6)(x+5). Find the polynomial that represents the area of the bottom of the box.

Algebra

How do I work this correctly? I know the answer is 7 but I am doing something wrong.Here is what I have... x+ã(2x-5)=10 x+ã(2x-5)^2=10^2 x+2x-5=100 3x-5+5=100+5 3x=105 x=35 PLEASE HELP!

Debating

Using debating terminology can you help me define this please? That there should be compulsory exercise at work thanks a heap Minnie W

math

A. write (2^3)^3 as a single power of 2. show your work . B.write your answer from part A as a standard number. please help i don't get it.

Chemistry

How many ml of .050 M NaOH are required to prepare 1500.0 mL of .0020 M NaOH? Please show work, I'm not sure how to do this. Thanks!

Chemistry

How many ml of .050 M NaOH are required to prepare 1500.0 mL of .0020 M NaOH? Please show work, I'm not sure how to do this. Thanks!

algebra

perform the operation and simplify the answer. sqrt 12x^3 . sqrt 3xy^2 Please show work.

math

Bob has 4 more dimes than nickels. He has 1.45 in all. How many nickels does he have? Please explain and show your work.

Math

I can't make this work. Please help? Insert parentheses when necessary to make the number sentence true. 5-3x4/6+4=-9 Thank you!

Chemistry

Compute the equilibrium constant for the reaction between Ni 2+ (aq) and Co (s). I'm not sure how to work out this problem. Could you please help me out? thanks.

Chemistry

What is the molarity of a solution that contains 0.30 moles of KBr in 400 mL of solution. Please show all work

Algebra

I need help solving an equation Solve the following equation for a. Please show all of your work. C = 1/6 (10b-7a)

Math - Solving Logarithms equation

Solve the equation below. Please show all of your work. Log3((x/2)-9) = 4

Math

Simplify the radical expression by rationalizing the denominator. 8(radicand)48/(radicand) 112x Please explain how to work this.

college algebra

solve the logarithmic equation. Please show all work. log5x+log5(x-3)=log5(x+5)

algebra

Write the slope-intercept form of the equation of the line.Please show work. Show in graph.(-3,-5)(6,1)

math

Could you please assist me on how to work this problem? A student wrote 5 + 24+6=5 + 25 + 24 + 6 by the associative property. what error did the student make?

math

Could you please assist me on how to work this problem? A student wrote 5 + 24+6=5 + 25 + 24 + 6 by the associative property. what error did the student make?

math

Could you please assist me on how to work this problem? A student wrote 5 + 24+6=5 + 25 + 24 + 6 by the associative property. what error did the student make?

geometry

Algebra BD bisects <ABC. Solve for x and find m<ABC. m<ABD = 4x - 16, m<CBD = 2x + 6 Please teach me how to work this.

calculus

Find the inverse the following function. Find the domain, range, and asymptotes of each. f(x)=In(x+1)+1 Please show work

math

find the inverse of the following function. find the domain, range and asymptotes of each. f(x)=In(x+1)+1 please show work.

Calculus

Find the derivative of the function using the definition of a derivative. F(x)=squareroot(1-3x) Please show work for understanding, thank you! :)

Chemistry

If Gold sells for $1200.00 an ounce, how many atoms of gold can you buy for a penny? Please, Show work.

algebra 1

Simplify using long division(please show work so I understand) 1.Divide (72-8x^2+4x^3-36x)by (x-3) 2.Divide (8b^3-6) by (2b-1)

Grd 12 Math

Can someone please help me work out how to get to the answer of: tanx + tan (pi-x) + cot (pi/2+x) = tan (2pi-x)

Math

A cube has a surface area of 24 ft2. What is the length of one edge of the cube? Show Work Please.

Algebra 2

Solving Quadratic Systems 16x^2-9y^2=144 y=9-x^2 Please show work I'm having trouble solving it.

physics

steven throws a 3.5kg ball at a speed of 25m/s. what is the momentum of the ball? Please show work

Math

Simplify each expression and state any non-permissible values. (5 marks - show your work) 3x+1/2x^2-2 + 2x+2/2x^2-8x+6 is the expression Can you help please?

Math Word Problems

If I have 12 brownies and Sue eats 2/3 of them, how many do I have left? Please show me the work.

Math

Please help me write this as a single fraction? Sorry my addition/equal key does not work - 3a-7b/2a plus 5a-4b/3a plus 3.

Math 222

Please help me solve this equation? Sorry my addition and equal key does not work. -x^2-3x plus 5 equal 0

physics

a car rounds a curve with a radius of 45.0 m at a speed of 22.0 m/s. What is the centripetal acceleration of the car? please show work

mathematics

Let A = (1,2,5) B = {1,2,4,5,6,8} and the relation R is "less than or equal to."Representing the relation BRA in set gives??? Please show me work

math help pleaseee

One of the zeros of the function f(x)=x^3-28x-48 is x=-4. Factor the function. Show your work. How do I solve this?? Please help??

English

Please please please check my answers and explain to me why they are right or wrong!!! 24.) Choose the correct voice of the underlined verb. (1 point) The pitcher THREW the ball to the catcher. a.) active** b.) passive 25.) Choose the correct voice of the underlined verb. (1 ...

Math(Please answer)

This is the same equation as before just with different numbers. y=yo + (vo sin Q) t - 1/2gt^2 This time the numbers are: 0 = 1.005 + (3.021 sin 30)t - 1/2(9.8)t^2 4.9t^2 - 1.5105 - 1.005 = 0 This is the part where I am stuck. Did I do this correctly? sin 30 = 0.50 X 3.021 = 1...

precalculus

Can you check my answer? If it is wrong can you please explain why and give the correct answer? Use Gaussian elimination to write the system of equations given below in row-echelon form. 2x+4y+z=-4 2x-4y+6z=13 4x-2y+z=6 answer:2x+4y+z=-4 8y-5z=-17 z=1

Math

Hi! I’m practicing for the SHSAT, and I am doing some math problems. I don’t want to take advantage of this website, so I decided to ask you guys first. Am I allowed to ask lots of math questions? But I will answer them(at least the ones I know) could you help me check it...

my math

True or false? Intentionally writing a check on an account with insufficient funds is allowed under certain conditions. I say false? Ben Spender writes a $50 check which is returned by his bank with additional charges. The company he wrote the check to, Art Supply Inc., also ...

math

A machine has four components, A, B, C, and D, set up in such a manner that all four parts must work for the machine to work properly. Assume the probability of one part working does not depend on the functionality of any of the other parts. Also assume that the probabilities ...

Theme please check

Could the theme be No women could change men The story is about a man marrying a women and the women wants the man changing his diet. The women bosses him around then the man finds another girl and takes off with her. He took off with her because the women bossed him around ...

English grammar check please

If someone could check these sentences for me that would be great. sentence beginning with a present participle: Beginning with Tom's conviction, Jem's belief in justice and the basic good of humanity is badly damaged. sentence that begins with a past participle: Brught to an ...

Science

Someone check this please Consider a wetland ecosystem similar to the one shown in the image below. In this ecosystem are two species: a small fish species and a wading bird species that feeds on the small fish as its main source of food. Oxygen levels are a limiting factor....

computer

A coworker calls you at 9:00 a.m. at work and asks for a favor. He is having car trouble and will be an hour late for work. He explains that he has already been late for work twice this month and that a third time will cost him four hours of pay. He asks you to stop by his ...

help with solving

x^2+(x-2)^2 = (2x-6)^2 solve for x. thanks so much. Please keep in mind that tutors here won't simply do your work for you. I'm sure you'll get a better response if you show your work as far as you can get, so tutors will know where you get stuck. =) it was a word problem and ...

WILL SOMEONE PLEASE HELP ME!!!!!!!!!

A cross between true breeding tall red flowered plants and true breeding short white flowered plants. Tall and red are dominant traits. What would be the expected ratios of phenotypes in the f1 and f2 generations? what is the exoected ohenityouc ratui if F2 ganeration if red ...

physics

Does the tension in the rope or chain of a swing do any work on a child who is swinging? No. Work is done when the force is applied in the direction of motion.

Math

A person begins work at 9:00am on the east cost and ends their shift at 1:00 am on the pacific coast. How many hours did they work?

physics-work

if 2.0 J of work is done in raising a 180 g apple, how far is it lifted? equation used to figure this problem out?

Math

A does 20% less work than B .If a complete a piece of work in 7& 1/2 hours then B can do it in options- 5,5&1/2,6,6&1/2 plz solve without using x and y method

The mind at work

Boss Tweed encourages his associated to work " like a well- oiled machine, " thus providing his workers with

Phsics

HOW MUCH WORK IS DONE With a HORIZONTAL FORCE OF 50.0 N AT AN ANGLE OF 24 degrees over a level distance of 5.0 m. What net work is done on the box?

a work having to do with thanksgiving and go

unscramble this work rssatwee

chem

consider the following balance chemical equation: 2NH3(g)+3CuO(s)=N2(g)+3Cu(s)+3H2O(g) if 18.1grams of ammonia reacts with 90.4 grams of copper(II) oxide, which is the limitting reagent?? what is the theorectical yield of nitrogen gasd? if 8.52 g of N2 are formed, what is the...

chem

consider the following balance chemical equation: 2NH3(g)+3CuO(s)=N2(g)+3Cu(s)+3H2O(g) if 18.1grams of ammonia reacts with 90.4 grams of copper(II) oxide, which is the limitting reagent?? what is the theorectical yield of nitrogen gasd? if 8.52 g of N2 are formed, what is the...

Literature

This is one of my pre-writing exercise: Have you ever noticed that some reviewers list the criteria they use to evaluate something right in their review? When you write your essay, you'll need to be clear what criteria you used to evaluatate the work. In this exercise, make a ...

math

Ex 2: -2x+7=22 -2x+7-7=22-7 -2x=15 -2x/(-2)=15/(-2) I do not have to switch the equality sign. Even if I did it would not look any different. x=-7.5 Check: -2x+7=22 -2(-7.5)+7=22 my solution is that x=-7.5 so I will just put that in to see if it works. 15+7=22 22=22 Yes. It ...

english

was given an assignment to write a paragraph essay about the short story"'the sniper''. And Ialready started and i want you to check my work if am on the right track.I started by writing my general statement. iNTHE SHORT STORY ''tHE SNIPER'' the author descibes the realities ...

english

was given an assignment to write a paragraph essay about the short story"'the sniper''. And Ialready started and i want you to check my work if am on the right track.I started by writing my general statement. iNTHE SHORT STORY ''tHE SNIPER'' the author descibes the realities ...

Help!!

What was the main concern for Anti-Federalists in passing the US Constitution as written after the Connecticut compromise? please someone tell me good site and please tell me how can I answer it, Check this site. http://en.wikipedia.org/wiki/Anti-Federalism

Chemistry

A system has an initial energy of 117 joules. The energy equation includes --40.1 J of heat and -20.3 J of work. What is the final energy? Was heat added to the system or to the environment? Was work done by the system or to the system? Be sure to show all of your work and ...

As physics

Q11.The table below shows how the braking distance x for a car depends on its initial speed u. | u / ms-1 | 5 | 10 | 20 | 40 | | X / M | 2 | 8 | 32 | 128 | The relationship between x and u is: doubling speed increases distance by a factor of 4. i)The reaction time of a driver ...

Chemistry - radioactivity

Hello Dr.Bob. Could you check my work please? I'm not sure if I'm right in how I solved this problem. Which of the following nuclides are most likely to decay via beta decay? A) I-131 B) Pb-206 C) F-18 D) Zr-90 E) Ar-40 I know that nuclides undergo beta decay when they are too...

math 012 please help explain

can someone please help explain how to do this problem. i have a previous posting where i tried to work the problem out, and someone tried to explain where i was confused, but im still confused. 4(2n+1)=3(6n+3)+1

Trig/Pre-Calc...

Please help me with this. The finishing time for a runner completing the 200-meter dash is affected by the tail-wind speed, s. The change, t, in a runner's performance is modeled by the function shown below: t= 0.0119s^2 - 0.308s - 0.0003 Predict the change in a runner's ...

7th grade math Ms. Sue please!

Hi! Can you check my answers please? Thanks! And, can you help me with 3 please? I have tried and tried but I cannot solve it can you explain how? Thanks! 1. Given a scale factor of 2, find the coordinates for the dilation of the line segment with endpoints (–1, 2) and (3...

math

Which of these numbers is irrational? check mark sign 3 0.25 1/5 check mark sign 9 I think it is the first one

Math: Homework Questons (answer quick)

Can you check if the answer is correct and of there any grammar mistakes. Write True or False and EXPLAIN your reasoning for the answer!!!! 8. (5 - 2) - 1 = 5 - (2 - 1) Answer: True Reason: The reason why my answer to this question is true is because when we change the ...

algebra

pedro and juan can do a piece of work in 3( 3)/(7) days. if pedro works in 3 days and juan in 4 days, they will finish the work. find the time required by each to do the work.

Algebra

pedro and juan can do a piece of work in 3 3/7 days. if pedro works in 3 days and juan in 4 days, they will finish the work. find the time required by each to do the work.

Please Help

A bottle contains 0.5 quarts of grape juice. Keisha will use o.2 of the grape juice to make fruit punch. How much grape juice will keisha use for the fruit pumch? a. 0.3 b. 0.2, c 0.1 or d 0.01 I chose 0.3 but according to the teacher's edition it says the corrcect answer is c...

Co-op

I have to writeabout the work setting and work environment of a pharmacy technician... I am allowed to copy and paste from a website as long as you reference it so I did... but all in all this is what I wrote.: Work environment: Pharmacy technicians work in clean, organized, ...

Physics

During an adiabatic process, the temperature of 6.50 moles of a monatomic ideal gas drops from 525 °C to 169 °C. What is the work done? Here is my work, is it correct? T1 = 525+273 = 798 K T2 = 169 + 273 = 442 K work done = R[T2-T1]/1-gamma = 8.314[525 - 798]/(1-1.67) = - ...

English

I urgently need to know if the word choice and tenses are correct. Thank you. 1) Enter the airport and check your flight number and the boarding time of your flight on the departures board. 2) Before going to the check-in desk make sure your baggage doesn't exceed 20 kilos. ...

English

How is Hamlet hypocritical with Rosencrantz and Guildenstern? Provide 2 examples. 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. Be sure to go back into your textbook or use...

Chemistry Help? Thanks

At what temperature do KCL and KNO3 have the same solubility If a saturated solution of KNO3 at 20.0 C is heated to 80.0 how much more could be dissolved? If a saturated solution of KCL at 90.0 C is colled to 30.0 C how much of the solid will precipitate? How much NaCL will ...

CHEMISTRY

At what temperature do KCL and KNO3 have the same solubility If a saturated solution of KNO3 at 20.0 C is heated to 80.0 how much more could be dissolved? If a saturated solution of KCL at 90.0 C is colled to 30.0 C how much of the solid will precipitate? How much NaCL will ...

Physics -- check answers

1. In moving an object of mass 10 kg through a distance of 8.0 m, 40 J of work is done. The average force exerted is? my answer: 320N 2. What is the kinetic energy of a 20 kg object moving at a speed of 10 m/s? my answer: 1000J 3. the gravitational potential energy of a bird ...

Law

Please check my answer thanks :) A Dr is treating a pt for schizophrenia he tell the dr that he plans to kill Sally when he is relased from the hospital the believes that but he does not contact Sally. Sallty then sues the doctor the basis of her cliam is what.. I said Failure...

French

Can someone please check to make sure this is correct: Chère Famille Rosseau, Merci pour m'inviter rester chez vous! (should translate to "thank you for inviting me to stay at your house.") Merci beaucoup!

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