Trig check my work please?

88,597 results, page 42

math

Not sure how to complete my home work tonight my first question is 2+8=4+ ___ I don't no how to answer please help thankyou

Math

How do you factor "0 = x^4 - 6x^2 + 5"? Please show all steps. Here's my work, but I just went around in circles..... 0 = x^4 - 6x^2 + 5 -5 = x^4 - 6x^2 -5 = x^2 (x^2 - 6) -5 / x^2 = x^2 - 6 (-5 / x^2) + 6 = x^2 (-5 + 6x^2) / (x^2) = x^2 -5 + 6x^2 = x^2 * x^2 -5 + 6x^2 = x^4 0...

Chemistry

What volume of 0.5M HNO3 is required to neutralize 25 cm3 of a 0.2M NaOH solution? please show work and detail.

9th grade algebra

This is for my daughter. find the product of x^2 -4/5 X x + 2/x - 2 could you please show us the work so we can try to understand how it works?

math

divide $ 680.00 among three children with the ratio 2:4:6 please show me how to work out the answer

Algebra 2 URGENT

Solve the equation using the method that seems easiest. Please Show All Work! x^2+12=0

reactions

if you have 66.6g NH3 how many grams of F2 are required for a complete reaction? PLEASE SHOW ALL WORK AND/OR STEPS!!!!

Chemistry

What is the molarity of a potassium chloride solution that has a volumeof 400.0 mL and contains 85.0 g KCl? Please show work.

8th grade

which of the following is an irrational number? A. 1 B. 9/17 C. 0.4166666666 D. Both A&C with showing work please or putting it in to words.

7th grade

Simplify each of the following expressions using the distributive property. need help please show work 5(x+y) -3(5+t)

algebra

d=(1/2)at^2; solve for a. i got a=d/([1/5])t^2) but i don't see that in any of the possible responses: a. a= (2d)/t^2 b. a= 2dt^2 c. a= (dt^2)/2 d. a= d/2t^2 What did I do wrong? & can you please show detailed work?

Art

what is the meaning of "Tango C.1918-24" of Elie Nadelman? why did he make it? I need some information for that work. Please help me!!!

math

What are the measures of the angles of a right triangle with side lengths of 1, 2, and sqroot of 2? please show/explain work

physics

What is the mass of a lead sinker witha volume of 3cm3? please show work I calculated 11.3*3 = 33.9 Is this correct.. Thank you.

Math

Solve the following equation in the complex number system. Please show all of your work. x^4 – 13x^2 – 90 = 0

pre-algebra

Given the linear equation y=-5x-2. Find the y-coordinates of the points (-1), (-2), and (1). Please show all of your work.

Math - urgent

Evaluate the definite integral 8 S (3x^2 + 3)/(x^2) dx 5 Not sure which substitution to use. Please show your work & explain. Thanks

calculus

Find the derivative of the function. y=cos((1-e^x)/(1+e^x)) Please show all work and explain. I am very confused

chemistry

what mass of water is required for the formation of 175 grams of carbon monoxide? please show work

statistics

Find the (two) z-scores that bound the middle 40% of the standard normal distribution. please show the work.

algebra

Solve the inequality. Express your solution using notation and please show all of your work. x^4<16x^2

precal

For the given functions f ,g and h, find f o g o h and state the exact domain of f o g o h. Please show all of your work. F(x)=inx g(x)=/x/-7 h(x)=5x+6

measurments

which has the least value? 3130 L+38126 cl+ 3403 ml 394 kl+ 1425 Kl+ 490L please show work!

college algebra

analyze the graph of the following function. r(x)= x^2+x-6 -------- x^2-x-2 there are 8 steps but they don't make sense to me... please show work!! thanks

Intermediate Algebra

Solve using the elimination method. Show your work. 14x+18y=54 -4x-14y=42 HELP please

college alg

solve the following inequality x^2(8+x)(x-5)/ (x+5)(x-2)> or equal too 0 this looks like a fraction please show work

stats

. Find the mean and standard deviation of the following probability distribution: x 1 2 3 P(x) 0.4 0.25 0.35 Please show all of your work.

calculus--please help!!

Graph the function using transformations show your work and state. A. the domain b. the range c. the asymptotes f(x)=4-1/(x+6)^2

calculus

Solve the equation in the real number system X^4+11x^3+24x^2-23x+35=0 Please show work

math

if X is 10% of two other numbers,Y and Z,and Z is 3 times the value of Y.What percentage is X of Y alone ? please show me how you work it out,thanks

Calculus

Determine the equation ofthetangent line in slopeintercept form at x=1 of y^3 +2x^2=1 at x=1. Please show work so I can follow the process. Thanks!

Math

Let R1 and R2 be the remainders when polynomials x^3 + 2x^2 - 5ax - 7 and x^ 3 + ax^2 - 12 x + 6 are divided by ( x + 1 ) and ( x - 2 ) respectively. If 2R1 + R2 = 6, find a. Please work the complete solution.

Chemistry

Propose buffer components to hold a pH of 9.5, let the base have a concentration of 0.1 M show all work please

science

can you please give me a link to a detailed essay on gender differences in depression. I need a guideline to work from

6th grade math

Determine whether each value of x is a solution of the inequality 4x-5<3 a. x=0 b. x=2 c. x=-2 d. x=4 Help please *show the work and answer!!

Math

Write each expression using a single exponent. 20.) 8^10*8^9 22.) 2.6^12 * 2.6^12 Can you please show your work so I can get a better understanding of these problems?

Math

MULTIPLY. WRITE EACH PRODUCT IN SCIENTIFIC NOTATION. 24.) (3 * 10^6)(2 * 10^12) 26.) (6 * 10^9) (5 * 10^4) Can you please show your work so I can get a better understanding of these problems?

Basic Physics

I don't understand how to work this problem out: Find x-component of vector a ⃗ = (7.0m/s 2 , - y-direction) Please help

Algebra 2

Find all of the zeros of each function 1. q(x)=2x^3-17x^2+90x-41 2.x^3-5x^2-7x+51 3.x^4-9x^3+24x^2-6x-40 Please show work!!! I want to learn how to do it.

MATH

For the following system of equations, what is the x-value of the solution? -x + 2y = 6 6y = x + 18 A. -18 B. 0 C. -6 D. 3 Confused? Still trying to work it out. Please help! Thanks

Math

What is the rule for the function shown in the table? x: -1 | 0 | 1 | 2 y: -2 | 1 | 4 | 7 A. y= 1/3x + 1 B. y=3x + 1 C. y= 1/3x D. y= 1/3x + 1 Will someone please help and explain how I can work this out. I have trouble with these.

Math

Write an equation for the tangent to the curve y=sinmx at the origin. I got y=mx, is this correct? Please help by showing work! Thanks

Math

What is the surface area of a rectangular prism with l = 14 in., w = 12 in., and h = 4 in.? * Show your work and solution below. I don't know how to solve this please help ASAP!

Calculus (Urgent, please)

Find the area of the region enclosed by the intersection of the circle x^2+y^2=4 and the parabola y=x^2. Show work

math work

evaluate the expression ( 94 93) please help with this! I don't know what to do! ps there is a big bracket that is around the 94 and the 93, i just couldn't enter that into the box.

calc

determine the intersection pints of the graphs of the equations y=x^3-4x y=-x-2 I dont understand this please show all work.

Science

How dos the pull of a magnet work PLEASE ANSWER I NEED TO TURN THIS IN BEFORE JUNE 9th thank you!!

Art

I need to let you check a few things later. I hope you'll be there, Writeacher. 1) I need your help for a project work on Emily Dickinson and the theme of anorexia. Could you suggest one of her poems? 2) I also need your help to find a short description (four-five paragraphs ...

Algebra

An inspector of weights and measures uses a special set of weights to check the accuracy of scales. Various weights are placed on a scale to check the accuracy of any amount from 1 oz. to 15 oz. What is the fewest number of weights the inspector needs? What weights are needed ...

Physics

A bicycle starts at the origin of a circular track that has a circumference of 126 m and travels at a constant speed a distance s = 38.0 m in a time t = 12s. a)what is the angular displacement (in rad) of the bicycle from its starting position? r=20.1 so theta or angular ...

English

1. Hello. May I speak to Tom? Speaking. Who's this? Hi,Tom. This is Sam. How are you doing? Just fine. How about you? I'm so-so. How is your school? Oh, it's great. I like it very much. 2. Hello. May I speak to Tom? He is not in now. Can I take a messsage? OK. Ask him to call ...

Pre-Calc P lease check

Please check my answers; 1.Which of the folowing is another representation of (-3,pi)? (3,120degree) (3,0 degree)I think it is this one?? ((-3,0 degree) 2.Which is not a representation of (5,150 degree) (-5,-30 degree)I think it is this one? (-5,330 degree) (5,510 degree) 3....

math-volume

I'm confused with how to solve this problem, so help would be great! The volume of any spherical balloon can be found by using the formula V= 4/3 pi r^3. Write an equation for r in terms of V and pi 4/3*pi*r3 = V Multiply by 3 3*(4/3)*pi*r3 = 3*V 4*pi*r3 = 3V r3 = 3V/(4*pi) r...

math. PLEASE HELP.

Question: If A= 29 degrees and a= 4.6, find c. There is a diagram shown in the textbook. b is adjacent, c is the hypotenuse, and a is opposite. I know I'm suppose to use SOH CAH TOA, and i tried using tan, but Im not getting the correct answer. i looked in the back of the ...

Calculus

Find the intervals where the function f(x)=((2x-1)^2)(x-3)^2 is concave up and concave down and find all inflection points. Give decimal answers using two decimal place accuracy. Please help me!!! I really don't understand! and please show your work so that I understand :) ...

english

Im deciding my courses for fall semester please advice if basic math and anatomy&psysiology with religion is too much of workload, my other choice would be a&p,basic english and religion.What do you think. note.. I know whatever is chosen is hard work,i just want to be prepare...

7th grade math help Ms. Sue please

How do you find the sales tax of something? Here is one of my problems: The price of three dolls are $12.99. What is the price of the dolls with a 5% sales tax? Show all of your work! I cannot figure out how to put up an equation and solve this problem. Please help!

Calculus Help Please Urgent!!!

A cone-shaped paper drinking cup is to be made to hold 30 cm^3 of water. Find the height and radius of the cup that will use the smallest amount of paper. (Round your answers to two decimal places.) Height = ? Radius = ? Show work please!!!

Science

A student is trying to identify the different forms of energy described in the following chart: Form of Energy Description Examples Energy A energy that travels in waves through space light radio waves Energy B energy that depends on the height of an object a person at the top...

physics

An ideal gas is enclosed in a cylinder with a movable piston on top of it. The piston has a mass of 8,000 g and an area of 5.00 cm2 and is free to slide up and down, keeping the pressure of the gas constant. (a) How much work is done on the gas as the temperature of 0.230 mol ...

physics

An ideal gas is enclosed in a cylinder with a movable piston on top of it. The piston has a mass of 8,000 g and an area of 5.00 cm2 and is free to slide up and down, keeping the pressure of the gas constant. (a) How much work is done on the gas as the temperature of 0.230 mol ...

physics

An ideal gas is enclosed in a cylinder with a movable piston on top of it. The piston has a mass of 8,000 g and an area of 5.00 cm2 and is free to slide up and down, keeping the pressure of the gas constant. (a) How much work is done on the gas as the temperature of 0.230 mol ...

math

I need help with these questions please. Could someone please check them for me? Thank You. 1. Jane Hilman went to her bank. She had a balance of $1,009.88 in her savings account. She withdrew $130.00 and the teller credited her account with $6.19 What is her new balance. is ...

Math

Calculate the slant height for the given square pyramid. Round to the nearest tenth. Pyramid base= 6cm Height= 5cm 6.2 cm 5.8 cm 7.8 cm 7.2 cm I am usually very good at solving these kinds of problems but I cant focus on anything right now and I keep getting thrown off. I'm ...

Science

Which type of energy in the bungee chord prevents the bungee jumper from hitting the ground after a jump? A. kinetic energy B. elastic potential energy *** C. magnetic potential energy D. thermal energy -- Side note: Please help. I am not asking for the answer, I'm simply ...

MATH STUCK:-(

I am having some difficulties factoring polynomials and I use only one method to figure the stuff out, which is the guess and check method because it's just mental math work and not that complicating. Here is a question that I know how to do, and below it I will list down the ...

English

Please check my answer thanks :) Sue's dog had flees. This sentence is a homonym used correctly True False. I said True

Law and Ehtics in med

please check my answer thanks :) Privileged communication is pertinent in a legal or court context. True or False I said True

medical reimbursement methodologies

please check my answer thanks :) True or False The committe on social welfare implements fee schedules I said True

Anatomy and Physiology

Please check my answer thanks True or False Keratinized cells are found in the body by the subcutaneous layer of the skin I said True

Science 8th grade

please check my answer thanks True or false Blood gains oxygen when it passes through the liver I said True

Science 8th grade

please check my answer thanks True or False Blood gains oxygen when it passes through the liver I said true

Health/ Basic Clinical Procedures

please check my answer thanks True or False The Fowler's position is used for an exam of the abdomen I said False

JCAHO

please check my answer According to JCAHO standards, the delinquency rate for incomplete medical records should be no greater than 20% I said True

Physics

please check this the Greek letter delta indicates a(n) A. difference or change b. sum or total c. direct proportion d. inverse proportion i chose A?

MATH 156

can some one please check if my answer is correct. Write the number in scientific notation. 15)0.000 294 Answer: 2.94x10^(-4)

math

the width of a rectangle is fixed at 27 cm. what lengths will make the perimeter greater than 70cm? the length must be greater than _70_ cm please check if this is correct. thank you!!

Chemistry

Please check my workings to see if i'm correct, thanks! Find the percentage of nitrogen by mass in Ammonium nitrate, NH4NO3. (28/80)x 100% = 35% Is my answer correct?

English

A last question. Can you please check these sentences? 1) “Would you like to go for a motorbike ride?” he said to me. 2) “What about making pizza for dinner?" he said. (or asked?)

Spanish-Please check

I had to change these into the past tense preterite are they correct tú presentarse would it be tú presentaste él sentirse would it be él se sintió

Soanish-8th grade please check answer

I'm not sure what they're asking in this question- are they asking where you are when you vacation? ¿Dondé te ustedes cuando de vacaciones? Answer-Yo estoy en Florida.

math

solve equation then check for extraneous solution please someone explain this to me. 6/6-4x/=8+4 then one that is solve the inequality s/x+3/4<2 I don't understand these problems and then it says to graph

math--please check

Change the logarithmic equation to an equivalent equation involving an exponent. log8^64=2 **note that the 8 should be lower than the g** 8^(log64)=8^2 64=8^2 is this correct

size

Please check: Which of the following vary in size 1. pencils in a package 2. tennis balls in a can c. shoes in a shoe store d. eggs in an egg carton D?

government

federal grants to state or local governments that are for specific programs are call? i have block grants as an answer. someone please check for me

French

Please check the sentence for grammar. Son opération préférées dans les mathématiques est la multiplication. I'm not sure about son or sa.

Math

Check my math please... is the probability of three events with the following individual probs: 1/161x10/100x20/100=0.00012; and that is a 0.012% (1.2%) chance? Thanks

Math Asap

When adding √9 and -7, which type of number is the sum? A.irrrational B.whole number C.radical D.integer My answer is A. CAN you check please @Ms.Sue

English

When a writer paraphrases or summarizes information from a source, s/he does not need to provide a citation. True False. I say false. Please check my answer.

English

Quotation marks are required when using exact words from an outside source. True False I say True. Please check my answer.

English Proofread

Can you please read my first paragraph for my cover letter. The writer had to identify self and purpose in the 1st paragraph. Can you please give me feedback and check my grammar? Thank you help is greatly appreciated Your advertisement for any entry-level position as an ...

Spanish-Please check

We had to write a conversation in Spanish between a clerk and me wanting to buy pants I wanted them to be loose and I had to pay in cash Could you please check La dependienta: ¿En qué puedo servirle señor? La clienta: Busco los pantalones negro pero estos son muy apretados...

maths

For a certain amount of work,it takes john 6 hours less than tommy,if they both work together,it takes them 13 hours 20 minutes,how long will it take tommy alone to complete the work

Physics(Please respond)

A system does 210 J of work on its environment and gains 80.6 J of heat in the process. Find the change in the internal energy of (a) the system and (b) the environment. Physics(Please respond) - Elena, Thursday, June 21, 2012 at 2:33am ÄU = Q - W Where ÄU is the change in ...

math

If you earn the grades of 81, 84, 78, 80 in four tests what should your final test’s score be in order to have an average of 81%? .81x400=324 Need a total of 324 pts Test grades so far 81,84,78,80 = 323 324-323=1 You need at least one more point to get an 81 Can someone ...

English

1. He was sick so he couldn't go to work. 2. He was sick, so he couldn't go to work. 3. He was sick so that he couldn't go to work. (What is the difference among them? Does #1 mean #2 or #3? What is the meaning of #1?)

English

Are you doing any volunteer work? How about your friends? 1. Yes, I am. They are doing volunteer work, too. 2. Yes, I do. They do volunteer work, too. (Which answer is right?)

English

1. I can't concentrate on work. 2. I can't concentrate at work. 3. I can't concentrate (on something) at work. ------------------ Which one is correct? Does #1 mean #3?

math

24 girls worked for 3 days and complete in 1/5 of it.20 boys work for next 10 days and complete 2/5 of it.if after 13 days from start of work,24 girls and 20 boys work together,how many days will they take to complete the remaining work?

English

1. He is past old age, so he is very weak. He is about to pass away. 2. He is past middle age, so he has to work hard to prepare for old age. 3. He is past young age, so he is able to cope with difficult tasks. =========== Are they all grammatical? Would yoiu check them? Thank...

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