Algebra, help + check please

104,559 results, page 61

Hard algebra qestion

3x^2+6x/2x^2-11x+12 - 2x^2-5x+3/x^2+x-2 ÷ 4x^2-12x+9/x^2-4 I got 3x^3+2x^2-12x+8 / (x-1)(2x-3) (x-4) Is this right please show your steps so I can understand! Thanks I greatly appreciate your help!

algebra

solve by using the quadratic formula prove your answer is correct by checking can someone please show me how to do this step by step 2x^2+3x+4=0

Algebra 2

Find the indicated term of each expansion. fifth term of (x^2+squ. root 3x)^8 Please show work I need to learn how to do it.

Algebra

I need help step by step please I keep getting a wrong answer of 252? Find the 24th term in the expansion of (a + b)^ 25

Algebra

I need help step by step please I keep getting a wrong answer of 252? Find the 24th term in the expansion of (a + b)^ 25

Algebra

(x+3)/(x+8)-(x-8)/(x-3) I worked this out and got -55 Ans. But was marked wrong because the Ans. is 55 why and how does this end with no minus(-)sign please show working

Algebra

I need help, it's a crossword puzzle. 10 letters, the last letter is T the 3rd letter is E. The question is: You can think of an opposite sign as ____ or -1 PLEASE HELP

Algebra 1

Thank you so much for helping me with the first question. I have and another question that I am a little confused on also, could you please help me with this one too? Y-8=3/7 (X-6) I got y= 7/3x +38/7 Is this correct?

Algebra

The following functions are defined for all real values of x. Find the range of the funcion. 1) y=m^2-4m-5 2) y=-9v^2-18v-55. Thank you for your help. (Please step by step.

More algebra--please help!

Here are some more questions I'm having trouble with. Please walk me through them so I can fully understand them. #2: Let A be (5,9), B be (-3,-5), and C be (1,1). The median of a triangle connects a vertex of a triangle to the midpoint of the opposite side. *Another note: ...

Grammar and Composition

please check my answers: match each of the words in the first column with an antonym in the second column. 1. gruff _f?_ 2. semblance _a_ 3. relentless _h?_ 4. prelude _j_ 5. liability _b?_ 6. barbarous _d_ 7. inadequate _c_ 8. dadlock _e_ 9. brazen _g_ 10. arduous _i_ a. ...

English

I can't find any synonyms for the words I need to rephrase. Can you check them, please? 1) He thought there should be sea-police upon the Haerwich-Holland ranges since that sea stretch was constantly overrun by pirates 2) He was expert in dabbling in exchanges He was such a ...

Astronomy

Which of the following distance measuring techniques works to measure distances to other galaxies beyond the Milky Way? CHECK ALL THAT APPLY A) Hubble's Law B) main sequence stars C) Cepheid variable stars D) parallax E) radar ranging F) galaxy rotation G) white dwarf ...

English

Could you please check these sentences, too? Thank you very much. 1) The witches were associated with the devil. 2) Once you told me I could use this sentence. The daffodils are described not statically as in a painting but alive with motion. 3) He shows the daffodils as part ...

Grammar

Please check. 3. Our apartment is downtown; theirs is uptown. 4. "Then," the witness continued, "we heard someone yell" 'Who's in there?' 5. Could you find the article "Gulliver's Travels Revisited" in our library? 6. Sheila asked, "Is Chapter 3 of Winter Tales called 'Up the ...

English

Can you check these sentences,please? 1) It was too bad you couldn't go skiing with your boyfriend 2)I decorated the Christmas tree with lights, angels, bells, snowmen, ribbon, stars and baubles. 3) Antony succeeds in stirring the crowd against Brutus 4 I reiceved a golf club ...

reading/language please check

'Good'and'well' -she performed WELL -you look GOOD in that color -these apples are GOOD -he rides his bike WELL -she made a GOOD attempt to win the race -the man reported that all was WELL in the coal mine -jonas said 'i feel WELL, thank you' -the team played WElL -mom fixed a...

English

Yes, you are right. Thank you very much for giving me advice, too! By the way, I need to include this sentence in an email. Could you please check it? 1) As promised, I'm sending you both the email address and the password of my first class so that your students can get in ...

English

Could you please check these last few sentences, please? Thank you in advance 1) What did you like most among the various topics we dealt with during your school year? 2) Are you going to continue your study of English at university? 3) Are you going to continue your studies (...

English; Help/Check.

Check, Please? Select the one that is a Not a sentence fragment. A. Asking the interviewer how often he would have to work on weekends. B. To apply for a job at the new store in the mall. C. Shaking his new boss's hand, Tony knew he would like working there. Answer: C Modifier...

Chemistry

Could someone please check my Chemistry homework? The molecular formula for cisplatin, a chemotherapy agent, is PtCl2(NH3)2 (The numbers are all supposed to be subscripts) 1. What is the molar mass of cisplatin? Ans: 300.06 g/mol 2. How many moles of hydrogen atoms are in one ...

us history

what factor caused the anger that led to the Boston massacre? a) Boston was occupied by the British soldiers. b) the colonists did not like the system of British taxes********* c) some american colonist disagreed with he kings policies.******** d) the British thought some ...

English

Mom, I'm going to the stationery store. I'll buy some ball-point pens, fountain pens, and mechanical pencils. I'll buy some notebooks and workbooks, too. I'll come back around 7:00 p.m. Don (Is this passage corect?) 1. I'll be back around 7:00 p.m. 2. I'll come back around 7:...

Social studies

Which statement best describes the importance of magna carta? A. british judges should hold power B. even the king must respect certain rights of the people C. federalism is the best form of government D. parliament should have the power to determine tax rates. My best answer ...

7th grade

There are at least 5 more than twice as many students taking algebra 1 than taking algebra 2. If there are 44 students taking algebra 2, what is the least number of students who could be taking algebra 1. Show all work

READ THIS!

Please answer my question that I posted at 6:10 quickly because I have to in a little while!!! Your answer is posted. However, you're still going to have to do the math to find the equivalencies. If you'd like to post your answers, we'll be glad to check them. We do not do ...

Health /Law

please check my answer thanks :) Sally who is a minor is being operated by Dr Bob who dicovers a life threatening tumor and the pt could die with in hours this tumor was previously unknown her parents are in the waiting room Dr Bob should 1. remove the tumor 2. ask her parents...

U.S. History

please check this The War of 1812 end with a. a clear victory for the United State b. a clear victory for Britain c. the removal of all British claims to land in North America d. a return to the pre-war boundaries between United States and British territories i picked B

Business Finance

Sullivan's Handbags marks up their bags at 45% of the selling price. Pat Sullivan saw a bag at a trade show that would sell for her customers for $85. What is the most she would pay for the bag and still retain the 45% markup of the selling price? I came up with 84.99 please ...

Health insurance

please check my answer thanks If both nondivorced of a dependent child have insurancce that will cover that child , which policy is considered to be the primary carrier for the child ? A the mother's insurance B the father's insurance C The coverage that has been in effect ...

Physics, Thinking check please

A 9v circuit charges a capacitor to steady state. Then the switch is opened. All resistance units in kilo-ohms: 2 rsistors, 20 and 40kO in parallel with a single 20 kO resistor. Total R is 3.33x10^4 Ohms. Am I close? If so, and the time constant is 1.6x10^-3 seconds, then is ...

English

Could you check these sentences, please. 1) I went to Ferrero factory in my boss's car, since I had an appointment with the responsible of the technical office. 2) Before leaving home, I had to wait for my husband to take a shower. How long does it usually take you to have a ...

geography

1. What is the name of the bay that is connected to the Atlantic Ocean by the Hudson Strait? The Hudson Bay 2.What is the body of water that separates Iran from Saudi Arabia? The Persian Gulf 3. Which of the following cities is farthest north: Nebraska, Iowa, South Dakota, ...

U.S.History

please check The Emancipation Proclamation freed a. all enslaved people living in the U.S b. enslaved people living in areas controlled by the Confederacy c. enclaved people living in the Union states. d. enslaved people living in the territories i chose B

English

A: Would you like to anything to drink? B: Diet cola, please. A: How many would you like? B: Three paper cups of diet cola. A: Here you go. B: Thank you. (Is the short dialogue grammatical? Would yoiu check the errors in the dialogue?)

8th grade Math

Can you please check my answers? Wally ordered a pizza. He ordered 4/9 of the pizza with sausage, 1/5 of the pizza with extra cheese, and the rest of the pizza with bell peppers. How much of the pizza had bell peppers on it? My answer: 29/45 of a pizza

Math help

Can you please check these problems? 1. -4ã2+6ã72-ã32=_____ I got 2 2. 5ã28+2ã7-ã14=_____ I got 12ã7-ã14 3. -3ã72+6ã52-7ã128=______ I got -89ã8+12ã13-56ã2 4. 4ã112+5ã56-9ã126=____ I got -17ã14+16ã7

Math

In one school, 5/6 of the sixth graders take a foreign language. Of these students 2/5 take French. What fraction of the sixth graders take French. Answer: 5/6 x 2/5=25/30 + 12/30=37/30=1 7/30 Can you please double check my answer to see if I got it right.

drwl please check

A shot-putter puts a shot (weight = 70.1 N) that leaves his hand at distance of 1.53 m above the ground. (a) Find the work done by the gravitation force when the shot has risen to a height of 2.18 m above the ground. Include the correct sign for work. (b) Determine the change...

Spanish

Please check this Cuáles son algunos comidas típicos de Mexico? Algunos comidas típicos de Mexico son tacos, y enchiladas y frijoles.

maths

1) If I number the pages os a 36 page book, how many digits do I write? My answers is 63, not sure if this is the correct answer? 2) How many pages does a book have if in numbering them I use: a) 129 digits? A= 69 pages? b) 203 digits? A= 104 pages? Could you please check my ...

English check please

1. In the poems in this collection, who faces life with the most hopefulness and self-confidence? the speaker in “Life Doesn’t Frighten Me”********THIS ONE the speaker in “A Dream Within a Dream” the Oysters in “The Walrus and the Carpenter” the Walrus in “The ...

Calc I (@Reiny)

y = x^3 - 8x^2 + 6x -2 has a slope of 6 at two points, what are the coordinates? I used Reiny's way to help solve this answer. Please check if I've done it correct: y'= 3x^2-16x+6 3x^2-16x+6=6 3x^2-16x=0 x(3x-16)=0 Solve for x's x=0 3x-16=0 ~> x=16/3 Plug x values to ...

Calc I (@Reiny)

y = x^3 - 8x^2 + 6x -2 has a slope of 6 at two points, what are the coordinates? I used Reiny's way to help solve this answer. Please check if I've done it correct: y'= 3x^2-16x+6 3x^2-16x+6=6 3x^2-16x=0 x(3x-16)=0 Solve for x's x=0 3x-16=0 ~> x=16/3 Plug x values to ...

Chemistry

Hello. Can I get someone to help me set up these problems? 1.) How many moles of N are there in 2.6 moles of NHO3? 2.) How many moles of C2H6 (g) are consumed when 4.4 mol CO2 (g) are produced? 3) How many milliliters of 0.80 M CuSO4 must be diluted to make 866 milliliters of ...

Algebra Zero Product Rule

I'm working with the zero product rule and I've somehow lost my way on a certain problem pattern. (x+8)(x-3)= -30 Is the pattern and the answer in the book says -2 or -3, but when I do the problem... x²+5x-24= -30 x²+5x+6= 0 (x+6)(x-1) x= -6 x= 1 That is how I factored it. ...

mATH

1. Compare using <,>, or =. -15 and -21 A < (MY ANSWER) B > C. = 2. Which nuumber is greater than -24? A -42 B-27 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...

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 ...

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...

geometry-PLEASE 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?

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 vhild-directed reflecting self-selection of activities & matrials c. ignore rhe principles of developmentally appropriate practices d.harmonize with non-mainstream ...

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) ...

Government

Can someone please check my answer for me I'm having trouble on my government practice test. Which of the following is an example of checks and balances? A) Congress can override a presidential veto by two-thirds veto in each house. B) The legislative and Judiciary work ...

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. ...

ALL STUDENTS, PLEASE READ

Please remember these things: 1. This is a homework help website; please put your subject (math, science, English, or ??) in the subject line to make it faster for each teacher to find those questions in his/her areas. Even better is if you put your specific subject, such as "...

Math

How do you write at least 6 fractions from the below ingredients list that serves 4 people. 1 cup all-purpose 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

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 ...

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. (...

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 ...

medical reimbursement methodologies

PLease check my answer thanks One option for providing your employee with health care coverage for work-related injuries is (this is in a state where you own a company where funds are not mandated for employee healh insurance) 1 self insurance coverage 2 medical savings plan 3...

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+ $...

Physics-Please 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 ...

Physics-Please check my explanation so far

If I had the old-fashion 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, low-neck T-shirts, 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)/(...

trig! check my answe please

An advertising blimp hovers over a stadium at an altitude of 125 m. The pilot sights a tennis court at an 8o angle of depression. To the nearest meter, find the ground distance in a straight line between the stadium and the tennis court. I set it up 125/tan8, knowing its a ...

another please help me check~calculus maths

y=3e^(2x)cos(2x-3) verify that d^2y/dx^2-4dy/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(2x-3) du/dx=6e^(2x) i used chain rule dv/dx=-2sin(2x-3) dy/dx=-3e^(2x)sin(2x-3)+cos(2x-3)6e^(2x) d^2y/dx^2 now i did lndy/dx=-ln3e...

Algebra II (check)

Assume that no denominator equals 0. sqrt12 - sqrt18 + 3sqrt50 + sqrt75 = (sqrt2^2*3) - (sqrt2*3^2) + (3sqrt2*5^2) + (sqrt3*5^2) = (sqrt2^2*sqrt3) - (sqrt3^2*sqrt2) + (3sqrt5^2*sqrt2) + (sqrt5^2*sqrt3) = (2*sqrt3) - (3*sqrt2) + (3sqrt5*sqrt2) + (5*sqrt3) = 7sqrt3 + sqrt2 + ...

Algebra

I'm not sure how to solve these problems. Simplify (3xsquare - 2x)divided by 15x - 10 Subtract (2y/x-y) - 5x/4y Solve (27/x) = (8 - 5/x) Simplify (7m^7n^4/8m) divided by (9m^2n^9/5n^2) 1) 3x^2 - 2x/ 15x - 10 factorize both the numerator and denominator x(3x-2)/ 5(3x-2) = x/5 (...

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 ...

chemistry

What is the volume of 45.0g of nitrogen monoxide, NO, at 20 C and a pressure of 740 mm Hg? Please someone can check my work is right or not? NO = 14 + 16 = 30 54.0g / 30 = 33.60 L 273K/293K = 0.932 atm 740 mm Hg = 740 torr = 0.974 atm 33.60L x 0.932 x 0.974 = 30.50 L Answer; ...

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

Spanish-7th 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.

Spanish-Please 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

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 ...

Algebra 2

Can you check my answer and the work? Thank youu~~ (2x-y)7 128x7 -448x6y -672x5y2 -560x4y3 -280x3y4 -84x2y5 -14xy6 -y7 orr 128x7 -448x6y +672x5y2 - 560x4y3 +280x3y4 -84x2y5 +14xy6 -y7 Ps: the 7 in the equation is the exponent and the numbers after the variable are also the ...

College Algebra

If 24% of your monthly pay is withheld for federal income taxes and another 6% is withheld for Social Security, state income tax, and other miscellaneous items, leaving you with $989.50 a month in take-home pay, then the amount you earned before the deductions were removed ...

College Algebra

If 24% of your monthly pay is withheld for federal income taxes and another 6% is withheld for Social Security, state income tax, and other miscellaneous items, leaving you with $989.50 a month in take-home pay, then the amount you earned before the deductions were removed ...

College Algebra

If 24% of your monthly pay is withheld for federal income taxes and another 6% is withheld for Social Security, state income tax, and other miscellaneous items, leaving you with $989.50 a month in take-home pay, then the amount you earned before the deductions were removed ...

algebra

Which of the following are examples of inferential statistics? Check all that apply. A.Finding the average (mean) of a set of numbers B.Testing every lightbulb produced by a company to confirm that each one works C.Testing random samples of lightbulbs produced by a company to ...

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. ...

Algebra--Math matePlease help

Homework Help Forum: Algebra-Please help-I'm confused Posted by Tom on Tuesday, September 21, 2010 at 8:09pm. This deals with quadratic functions-If I have a graph with h = (-5)and k =3 and they ask for the translation, would it be {5,3} or would the translation just be {-5,3...

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.

algebra

Write and solve a system of equations for each situation. Check your answers. 13. Your school sells tickets for its winner concert. Student tickets are $5 and adult tickets are $10. If your school sells 85 tickets and makes $600, how many of each ticket did they sell? 14. A ...

i need help..algebra/math

solve by using the quadratic formula: x2 plus x minus 2 equal 0 I know the formula is a=1 b=1 c=2 I'm having trouble solving...please help.

ALGEBRA

__5__ _4m___ m+1 = m What does "m" equal, I can't figure it out, please help me. Here's the question in writing in case it isn't clear: 5 over m+1 = 4m over m Thank you so much.

intermediate algebra

Write the equation of the line containing (-3,4) and perpendicular to y = 2/3x + 2. Write your answer in slope-intercept form. Not sure how to do this one. please help.

intermediate algebra

Write the equation of the line containing (-3,4) and perpendicular to y = 2/3x + 2. Write your answer in slope-intercept form. Not sure how to do this one. please help.

intermediate algebra

Write the equation of the line containing (-3,4) and perpendicular to y = 2/3x + 2. Write your answer in slope-intercept form. Not sure how to do this one. please help.

Algebra

How do I solve for elimination method on this problem: 0.3x - 0.2y=4 and 0.3x + 0.3y= 5/19. I know that multiply by 10 on both equations and get 3x-2y=40 and 3x+3y=50/19. and then I have to multiply 3x-3y=40 by 3 and 3x+3y= 50/19 by -3 to get 9x-9y=120 and -9x-9y=-150/19. But ...

Algebra

I did this problem, but would like to compare answers please if someone can help. Thanks! Find the equation of the line parallel to the line 3x + y = 5 and containing the point (4, – 2).

algebra

2x^2-2x-1=0 How do I use the quadratic formula to solve this because I am totally new at this and need help? Please show me the steps for this equation,so I will be able to do it own my own. Thank you.

Algebra

How can you tell whether a polynomial is written in factor form. Construct a trinomial whose greatest common factor is 2x^2. Am not understanding this...Please help.

algebra

The length of a certain rectangle is 4 m greater than five times it's width. What are the dimensions of the rectangle if its perimeter is 20m??? please help i have no idea how to do this!

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  84. 84
  85. 85
  86. 86
  87. 87
  88. 88
  89. 89
  90. 90
  91. 91
  92. 92
  93. 93
  94. 94
  95. 95
  96. 96
  97. 97
  98. 98
  99. 99
  100. 100