# Algebra, help + check please

103,406 results, page 52

### college algebra

factor... (x+4)^-3/5+(x+4)^-1/5+(x+4)^1/5 Please explain the process used to solve this type of expression. Answer should be in equation form if that helps....

### Calculus

Can someone please work this algebra. verify that y(x) = -ln (x - cx^2) satisfies the ODE x(e^y - y') = 2 where c is constant. I have been working through this and it is way too messy.

### Algebra 2

Identify the holes, vertical asymptotes, x-intercepts, horizontal asymptote, domain, and range of: x^2-2x-8 f(x)= --------- -2x+2 Please explain how you got all of this info.

### Algebra

I am havine trouble with this problem will someone please help me The perimeter of a rectangle is 68m The length is 10 m more than twice the width. Find the dimensions

### Algebra 2

Solving systems of linear equations in three variables. Ok so i don't really totally get these problems. Can you help me solve this one? and explain everything please? 2x+3y=6+z x-2y=-1-z 3x+y=-1+3z

### Algebra

Can someone please break down how to solve this equation. I am so confused. (x - 2)/(x2 + 3x - 10) – x/(x + 5) = 4 Show how you get the answers {-3.8, 2}, yet only one of them is a true solution.

### Algebra

Hi. I've tried doing these problems and got long decimals that don't make sense. Please help!! 1) 13x + 6=4x-4 2) (1/2)x + 8= 3x + 2 3) (n/3) + 8=n + 1 4) 2n + 3= 2n + 3 I don't know how I would find n in this one!! 5) 5x + 2(2x-1)=-16 Thanks so much for all the help!!!

### algebra

perform the indicated operation and if possible,simplify please show all of your work. write your answer in lowest terms. 18/35 divided by 22/25

### College Pre-Algebra

Solve -14x-7(4-x)< 3(2x-15). Write your solution using set builder notation. Please show all of your work.

### algebra

Solve the following inequality and write answer using interval notation. Please show all of your work. 2x-5/3x^4-x^3+275x-125>=0

### algebra

I am not good at math at all and my teacher has given me a very hard question about solving for the indicated variable. p=s+t+u solve for u Help please

### algebra

Please Answer the following: What do you call the Situation when the Rubber man Runs into the Bearded lady? What did Mergatroid get for losing 20 pounds?

### algebra

i am having trouble understaing how to write these out in simplest form please help a. 7^3x7^2x8^5/ 8^4x7x8^-7 for this i got 7/8 b. (a^-2b^4c^3)2 can you explain and show me how to do this?

### Algebra

True or False. The fifth root of a positive integer is sometimes irrational. Please give an example or a counterexample so that I can understand it fully.

### algebra 2

(This homework question was removed due to a copyright claim submitted by NNDS.) I messed this up when I asked earlier is the right answer 3/4 ..please let me know

### Algebra

Use factoring and the zero-product property to solve the following problems: z(z - 1)(z + 3) = 0 x^2 - x - 10 = 2 4a^ - 11a + 6 = 0 9r^r - 30r + 21 = -4 Please show work. Thank you so much!

### Algebra

Arrange the terms of the polynomial in ascending powers of b. 25db^5-7dm+3b^10-6db^6 Please tell me if I am correct on my answer? I got: 25b

### algebra

I having serious problems trying to solve this equation please help me find the product matrix for this input-output and demand matrices A= [ 0.1 0.03] D= [5] [ 0.07 0.6] [10]

### Algebra

Find the coordinates of the image after a reflection in the given line. [-8, 1, -7] [-7, -5, 1]; y axis I am really bad with these types (matrices) of questions, please help me.

### Algebra

Need help!! Please help me figure this out What is the length of 7ft more than twice the width and an area of the rectangle is 99ft^2. Find the dimension?

### Algebra help

Find an equation of the line L, where L is perpendicular to y=3x and passes through the point (1,3) Please help I'm not sure what formula to use or how to work out this problem

### Algebra 2

More About Complex Numbers: Solve x and y 4x+5y+13i=7+(6x+5y)i Please show work because I had a hard time finding the answer

### Algebra 1

I've been so stuck on this one question :( can somebody help mee please it would be very much appreciated The graph shows the number

### algebra

The product of the first ten prime numbers must be divisible by: F. 16 G. 18 H. 20 J. 22 K. 24 Please provide detailed explanation with answer (if possible) Thanks in advance.

### algebra

Plus or minus of 0.05: As measured in standard deviations, how much is a year of learning in school worth on a test? Please answer with a decimal.

### Pre-Algebra, please help!

which of these non terminating decimals can be converted into a rational number? a. 0626226222... b. 0.0020220222... c. 0.123123123...*** d. 0.898998999... Am I correct? Thank you!

### Algebra

1.What is the simplified form of the expression? 4d^-3•d^18 A.5d^-54 B.5d^15 C.4d^15**** D.4d^-54 2.Suppose that y varies inversely with X and that y=2 when x=8. What is an equation for the inverse variation? A.y=8/2x B.y=2/8x**** C.y=x/16 D.y=16/x I think the answers are: 1...

### algebra

a cheetah ran 300 feet in 2.92 seconds. What was the cheetahs average speed in miles per hour? Please show steps.THANKS!!

### Tim

Please I need help with this algebra problem With the 3 equations f1(x)=0 f2(x)=1/8(x+16)^2-98 f3(x)=2x+24 Determine an equation for this function with the 3 pieces above.(Refer to creating the polynomial functions)

### Algebra, 8th Grade mathematics

I need help on this question. My aunt doesn't understand it so can you help me? 1+3+3^2+3^3+3^4+••••••+3^250=? The "^" is for Square, cube and ect. It also includes X= 3^?-1 Can you help me please?

### Physics please check

A cyclist approaches the bottom of a gradual hill at a speed of 14 m/s. The hill is 4.9 m high, and the cyclist estimates that she is going fast enough to coast up and over it without peddling. Ignoring air resistance and friction, find the speed at which the cyclist crests ...

### English

Could you check this? Complete the questions. I wrote my answers with capital 1. Researchers are SUPPOSED TO BE VERY careful when working in the lab. 2. They ARE SUPPOSED TO CHECK and recheck dangerous experiments. 3. They are SUPPOSED TO THINK before acting impulsively. 4. ...

### Algebra

Two more I would like to check my work on: Solve using the square root property: (x+6)^2 = 4 x+6 = sqrt4 x+6 = -sqrt4 x+6 = 2 x+6 = -2 x+6-6 = 2-6 x+6-6 = -2-6 x = 4 x = -8 Solve by completing the square: x^2+6x+1=0 x^2+6x+1-1 = 0-1 x^2+6x = -1 x^2+6x+9 = -1+9 (x+3)^2 = -1+9 (...

### math 012 double check me please

9x+3(x-4)=10(x-5)+7 9x+3x-12=10x-50+7 12x-12=10x-43 subtract -12 from both sides and that leaves -12=-2x-43 add 43 to both sides and that leaves 31=2x then the answer is x=31/2 (a fraction) im so confused and its even harder trying to type it out and not confuse anyone reading...

### chemistry

please check my answer(one with star). The solubility of borax is directly proportional to temperature. Therefore, the sign of H is A. negative* B. positive C. unknown with the given information since solubility shifts the reaction to the right, therefore it is exothermic so H...

### math

In bowling, a handicap is determined by subtracting your bowling average from 180 and then finding 80% of this difference. Freddie bowls games of 178, 156, 149, 155, 172 and 180. Freddie's handicap is__________. I came up with 12. Could you check if this is correct please? ...

### Chemistry Check Please!!!

Using a table of standard electrode potentials (as in Appendix M of your text), calculate the standard cell potential, Eo, for: 2 Fe2+(aq) + Cl2(g) 2 Fe3+(aq) + 2 Cl(aq). Answer: Anode: 2 Fe2+ 2 Fe3+ + 2 e Eox = 0.771 V Cathode: Cl2 + 2 e 2 Cl Ered = +1.36 V Enet = +0.59 V

### science (check please (:)

8.Which of the following would help decrease the human ecological footprint? . . . . . . . . . . . . . . . My answer: using public transportation instead of riding in a car? (I have doubts on my choice) but my other choice is using bottled water instead of tap water?

### History

Check this please~?~?~ 1. C,A,D 1.Which are correct definitions for history? Choose all answers that are correct. A.the study of human adaptation to the environment B.the story of how the world has changed and how it has not changed much at all C.a retelling of what people did...

### Math

please check my answer thanks :) Mike purchased a home the mortgage is $235,000 at 8 3/4 % for 25 years. His annual property taxes on the home are $6,345 he also has to pay hazzard insurance in the amount of $1,479. What is the PITI payment of their loan ? I am not to sure ...

### Grammar and Composition

Please check these for me: Write the plurals of the following singular words. 1. hero : heroes 2. sheep : sheep 3. sister-in-law : sisters-in-law 4. journey : journeys 5. princess : princesses 6. spoonful : spoonfuls 7. victory : victories 8. stepchild : step children ? 9. ...

### English

Can you check the grammar in these two sentences, please? Thank you. 1) Best would be to know the name of the principal "and" the teacher who is designated with these programs; if I find that information I post it to you. 2) Addressing both would be considered as very polite ...

### geography

Will you please check my answers? 1.What states border Lake Michigan? Wisconsin, Illinois, Indiana, and Michigan 2. How many states are on the 60 degrees N line of latitude? Just one state ( Alaska ) 3. What do the following countries have in common: Chad, Paraguay, Hungary, ...

### math

Can someone please check my answers and help me with the last question! 1. Solve sin2xcos2x = 4sin2x on the interval [0, 2pi] 0, pi, 2pi? 2. Exact value of sin(pi/12) - sin(5pi/12) root3/4? 3. Using factorial notation, 0! = 1 False? 4. Find the area of the following triangle. ...

### @Help plzz check asap

I've removed the entire test you posted -- without indicating your answers! Please post only those questions you have serious doubts about along with what YOU THINK the answer is for each. Then when someone comes online who has read that work, he/she may be able to help. Do ...

### English

Please check for any errors and correc them. Thanks!!! As we discussed, I have made reservations for three days for a sweet of rooms at the North British Hotel in Glasgow Scotland. There are three connection rooms in the sweet. It should suite your needs quite satisfactorily. ...

### physics again (check answers please)

What net force increases a velocity of a car from 20 m/s to 35 m/s in 8.0 s if the mass of the car is 1600 kg? (3000 N). What force would cause the car to stop? (3000N) What coefficient of friction is needed to supply the force of friction? (.0191) are they correct?

### Math

The height was 30, the width was 25,and the length is 20. What is the volume, in cubic inches, of the block of ice? I think you multiply 30x25x20 and get 15,000. The answer is 15,000 cubic inches. Harry wants to make another block of ice with the same volume. He needs one ...

### Check this please?

I am writing about how different groups view the role of the government. I saw this online and wanted to use it to guide me through my essay, but wanted to check its accuracy because I thought Democrats weren't for higher taxes I thought Republicans were. Those in favor of a ...

### Social Studies

Buddhism became popular in part because it did not defend.... 1. dharma 2. the Hindu gods 3. the caste system**** 4. life after death This religion believes that the way to stop suffering is to stop desire 1. Buddhism*** 2. Judaism 3. Hinduism 4. Jainism This religion believes...

### English

1. You can check prices for bicycles on the Internet. 2. You can check prices about bicycles on the Internet. -------------- Can we use 'for' and 'about' in the sentence? Which preposition is commonly used? Can we use some other expressions for 'for? Concerning, regarding...

### English composition

I bought a pedometer on the Auction site on-line, so I can measure my steps. If I walk for 10,000 steps a day, it will be helpful for my health. This product was made in China, and it is 1,500 won. It is inexpensive. Because I can check how many steps I can walk, it will be ...

### math

Peter received a six month post dated check for Php 100,000.00.(The check can only be cashed after six months.) He offers it to his friend for Php 92,000.00. His friend's money is presently earning 10% compouunded monthly. If there is 20% withholdingtax on interest, which is ...

### Simplify 2

Simplify the equation. 〖19〗^(1/2)∙〖19〗^(1/2) I simplified it and I got 19. I used the equation that Steve did to solve the other one in Simplify. Please check, and see if I am correct. I will appreciate it.

### French

Please check these sentences for grammar. 1. Ils aiment (or aiment bien) aller à l’école. 2. Tu n'adores pas lire de les romans. 3. Ils n'aiment pas manger de les chocolats.

### math

Please check. (4xy^2)(3x^-4y^5) = 12x^-3y^7 (2x)^5 (3x)^2 = 288x^7 (-3x^2)^4 = 81x^8 True or False: the set of integers is a subset of the set of natural numbers. False All numbers are real numbers. True

### Physics

A heater cansupply 98000J an hour. If a lot of ice is already at 0 degrees, how much ice can be turned to water? check my work please: Q/l=m 98000J/kg / 3.35 * 10^5J = 029kg of ice can be turned to water

### Math (please check my answer!!)

What other information is needed to prove that the two triangles congruent by SAS? Picture description: there are two triangles showing line LT = line MQ and L=M A. <T = <Q B. <G = <N C. Line GT = line NQ << D. Line LG = line MN

### English

1. We see through/with our eyes. 2. We eat through/with our mouth. 3. We run through/with our legs. 4. We talk through/with our mouth. 5. We breathe through/with our nose. (Would you check the sentences? Which preposition do I have to use? Are both OK?) 6. Don't break off the ...

### english

please check my answer thanks. Which of the following sences demonstrates correct subject- verb agreement. 1. Elens thinks that five dollars are a lot of money. 2. A number of my friends have bought new cars recently. 3. Each of his sisters go to a different school. 4. Robert'...

### Math

please check my answer thanks :) How much money must be deposited now at 6% interest compounded semiannually to yield an annuity payment of $4,000 at the beginning of each six-month period for a total of five years answer needs to be rounded to the nearest cent I got $29,440....

### Health/ Basic Clinical Procedures

please check my answer thanks Standard and Transmission-Based Precautions have been adopted by most health care facilities and entail using what when in contact with all bosy fluids A. clean linens B protective equipment C. antimicrobial cleansers D. disinfectant I pick B tho ...

### U.S.History

please check Quakers believed that a. the King of England was a God b. non-Christian should be killed c. all people were equal d. the Church should be purified C Johnson freely gave a. money to wealthy planters b. white-owned land to African Americans c. weapons to the ...

### Mrs. Sue , Reed! Someone!

the subject is Geologic time. I was wondering if someone could check my answers please Sand or gravel that naturally forms near Earth's surface is known as A. pollen. B. ore. C. aggregate. (D. bedrock.) When new clay sediment is deposited on top of old beach material, it's ...

### English

"Mental distance" from a rough draft can be achieved by: A. waiting 24 hours before revising B. revising in a different place from where you have finished your revisions C. not sharing your draft until you have finished the revisions D. Using a computer spell-check and grammar...

### Maths

Can some one check this for me..please... The customer wishes to buy a carpet 12.5 sq metres. The cost $C of supply and fitting the carpet has a price of $p per square metre and is given by the formula C= 75 + 12.5P Rearrange this formula to make P the subject ... In order to ...

### reimbursement methodologies

Please check my answer thanks :) Which of the following determines payment before service are received ? 1. Prospective payment system 2. Retrospective payment system 3. Fee for service paymnt system 4. Capitation System I picked # 1

### Math

could someone please check these problems for me? thank you! 1. Soybean meal is 16% protein; cornmeal is 8% protein. How many lbs of each should be mixed together in order to get 320 lb mixture that is 9% protein/ A: cornmeal- 40lbs soybean-280 lbs 2. -0.7x<-35 A: x>50 3...

### 8th grade math

Can you please check my answer? Marcia wants to make muffins and needs 3/4 cup of a cup of sugar. She discovers, however,that she has only 2/3 of a cup of sugar. How much more sugar does she need? my answer: 1/12 of a cup

### calculus

relative extrema x^3 + 1/2x^2 - 2x + 5 Ok I have 3x^2 + x - 2 = 0 Am I on the right track? I think i know why I kept on asking for help with these pribelms. I forgot the step of factoring. Please check... 3x^2 + x - 2 = 0 (3x-2)(x+1)=0 x=2/3, x=-1 Correct. Nice job. If you ...

### math 20 please check

Jacob is 25 yrs old and hopes to retire by 55. He invests $22,000 in an RRSP that earns a rate of 9.7% per annum, compounded quarterly. What will his investment be at age 55? A=P(1+i)^n 2200(1+.097/4)^120 =$390067 to get the 120 I did 55-25=30 then * by 4 cause its compounded ...

### Physics-Please check

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 m 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: 1/...

### English

1. I like sheep. They can follow the shepherd well. They can't fight with other animals well. 2. I like parrots. They can imitate people's voices well. They can't clean houses. 3. I like giraffes. They can pick fruit on trees. They can't swim. 4. I like crocodiles. They can ...

### Derivatives

Can you help me find the derivative of these problems...Every time I try doing these I don't get the right answer. All of these are fractions; (x)/(2+x)= (x^2+3)/(x^3-2)= (2π)/(x^2-x)= These are not fractions; (3x^3/2 tanx)= (3x^1/2 sinx)= (4secx tanx)= (x^2 cotx)= (x^1/2...

### science

4. When a fan is turned on, it changes electrical energy into ______ energy. A. motion B. magnetic C. gravitational D. electromagnet 5. An experiment discovered that a particular material was a poor conductor of electricity. This material would most likely be used as an A. ...

### geography

How did islam mainly spread throughout the region? A) by imperial command? B) through military command? ** or C) via trade?** D) because of religious decree i think its B or C I'm not sure tho : \ if u could just check this out for me that'd be great I'm kinda leaning towards ...

### algebra

A few more question Id like for someone to check please. 1) what are the vertex, focus, and directrix of the parabola with the given equation? x^2-8x-28y-124=0 vertex (4,-5) focus (0,7) directrix y=-12 2) write an equation of a circle with given center and radius. center(-7,-6...

### Algebra (answer check)

The population of a small town is decreasing at a rate of 6% per year. If the town's population is 12,500 in 2017, what will the population be in 6 years? 8,623 people 8,000 people <--? or D 17,731 people 9,416 Write the equation of the line that passes through the points...

### Math Algebra

A quick question to check my answer. Trains A & B are travelling in the same direction on parallel tracks. Train A is travelling at 100 miles per hour and train B is travelling at 110 miles per hour. Train A passes a station at 2:10 A.M. If train B passes the same station at 2...

### Ms.Sue - Pygorean Theroem answers please check

Explain if a triangle with the given lengths is a right triangle. 1. 18, 24, 30 2. 7, 24, 25 3. 13, 14, 15 4. 8, 15, 17 5. 10,24, 25 6. 15, 36, 39 Are my answers correct? Thanks. 1. yes 2. yes 3. no because 19. 10497 cannot be a triangle. Also, 19.10497 is not equal to 15. 4. ...

### geography

Can you check my answer please? 1. To what hemispheres do the following countries belong? Soviet Union: Northern and Eastern Hemispheres, Canada: Northern and Western Hemispheres, China: Northern and Eastern Hemispheres.

### Algebra I

So- im trying to help my little brother out with his Algebra- but its been awhile since i have had algebra class- we need help with the following question: Solve the following equation for x: 2(x+4)=4x+12 2x+8=4x+12 2x=-4 x=-2 I think, lol I'll buy that. okay- i got that too- ...

### Physics (PLEASE CHECK WORK)

For safety in climbing, a mountaineer uses a nylon rope that is 50m long and 1.0cm in diameter. When supporting a 90kg climber, the rope elongates 1.6m. Find its Young's modulus This is what I have so far, I am getting the wrong answer. Can you please fix my mistake? (Studying...

### math

Can someone correct this for me please or help me out.... Why are variables useful in algebra? My answer: Variables are useful in algebra because they detemine an answer that anyone is trying to get to. Variables can represent a single number or a whole sub-equation. they make...

### Algebra

In Vanessa's coin bank there are 4 times as many quarters as nickels, 2 fewer dimes than nickels, and 15 pennies. The total amount in the bank is $5.80. How many of each coin are in the bank? A. Assign a variable to the unknown quantity. B. Write an equation you can use to ...

### report for 8th grade science please check

Please check this and let me know what you think thanks. Situation: A 52 year old man suffers a pulmonary embolism that originated as a blood clot in his right leg.. Describe this condition and how it develops. Specifically, trace the pathway of the blood clot from his leg to ...

### LIMERICK

I need you to help me check this, please. The Noisy Classroom By:Celest Declaint There once was a classroom named 210 They kept talking and talking again _____________________ ______________________ ______________________ ______________________ i need help on the other four ...

### algebra

can you check my answers? i have to write the slope intercept form of the equation key (a= means answer is) 1. 3x-2y=12 a= 3/2x-6=y 2. x+y=7 a= y=-x+7 3. -13+6y=x a= y=x/6+13/6 4. -2y=24+6x a= y=-3x-12 5. 49x-y=558 a= y=49x-558 6. 3x+14y=-56 a= y=-3/14x-4 7. -1/6y-1/6=x a= y=-...

### math/algebra

Subtract: express your answer in simplest form. 2/5 - y/y-2 answers a)-3y-2/y-2 b) -3y -2/5(4-2) c) -3y-4/5(y-2) d) -3y-4/y-2 The way you have written the problem, is 2/5 minus y^3. I don't think that is what you meant. Please use grouping symbols on fractions () or [] The way...

### Math

Please check my answer thanks :) Based on the information below what is Peter's account balance ? Peter has a credit card with an APR of 15% His balance last month was $423.78 He then made a purchase in the amount of $123.42 he later made apayment of $100.00 Peter's finance ...

### Health care

please check my answer thanks :) The ability to accurately predict yearly expenss was one reason that large companies decided to 1. offer HMO plans 2. enroll in managed care plans 3. self insure their workers 4. offer medical spending plans I picked 4

### chemistry

please check if I did this right ... calculate the mass of white solid CaCO3 that forms when 98ml of a 0.1M Ca(NO3)2 solution is mixed with 54 ml of a 2.5M Na2CO3 solution. Ca(NO3)2 + 2NaCO3 -> Ca(CO3)2 + 2NaNO3 .098*0.1 =.0090 .054*2.5 =.135 limiting reactant is Ca(NO3)2 ....

### geography

Can you check my answers please? 1.In what hemispheres is Africa located? Northern, Southern, Eastern, and Western 2. What is the easternmost state in the 48 contiguous states? Maine 3. What is the capital of the southernmost country in Africa? Pretoria, South Africa 4. How ...

### calculus-can someone please help me with this ques

Find all zeros of the following polynomial. Write the polynomial in factored form. f(x)=x^3-3x^2+16x-48 I put: x^2(x-3)+16(x=3) (x-3)(x^2+16) For zeros: x-3=0 x=0 **My teacher stated check the equation solution again. What is the value for x and hence what is the zero for the ...

### E.L.A. PLEASE CHECK!

Which choice best describes the underlined word or words in each sentence? For several decades, satellites around the earth have broadcast signals and monitored weather. Underlined is: satellites A- complete subject B- simple subject C- compound subject D- none of the above I ...

### Social studies

what is the impact of Georgia's broiler industry ? 1.Georgia was able to meet the growing demand for the broilers in the united states 2.other country purchased broilers 3.the demand for broilers lessened in the late twentieth century 4.it provided jobs for immigrant 1 and 4 ...

### Teaching dogs tricks

Please check my answer thanks Owners who aren't interested in professional work but want to show off their dog's tricks to an appreciative audience might want to get involved in A. teaching obedience classes. B. pet therapy. C. teaching tricks classes. D. agility. I say B

### A Raisin in the Sun

Why does Mama decide not to move? (please check the following answer): Mama decides not to move because she thinks she's aiming too high. She thinks moving would be unrealistic. She says that sometimes you have to know when to give up some things and hang on to what you ...

### Health/Law

Which one is True Please check my answer thanks :) In jury trials ..... 1. The judge has no role. 2. Parties may request a trial jury for any type of case. 3. The judge and jury both have a role 4. The jury decides whether edvidence should be admitted I picked #3