Algebra, help + check please

103,406 results, page 17

college algebra, Please help!!

use the intermediate value theorem to show that the polynomial function has a zero in the given interval. f(x)=4x^3+3x^2-8x+7;[-5,-2] please show all work

algebra

Please let me know if this is correct: rewrite each equation as a function of x. -3x+4y=11 I got 4y=3x+11 y=3/4x+11/4 f(x)=3/4x+11/4 Please tell me if this correct. Thanks

algebra

(2-x)/(2x+6)+ x/(x^2-9) Can some one please help solve this one because I stuck? I don't know how to sole this, so please somebody help!!

algebra

can someone help me find the difference of 3/2x-1 - 5/2x-1 please show step by step process please

algebra 1 help please ASAP

Divide and simplify. 1. 2y^2 - 7y + 3/2y^2 + 3y - 2 divided by 6y^2 - 5y + 1/3y^2 + 5y -2 2. x^2 + 13x + 12/x + 2 divided by (x + 1) Please explain! Thanks!

chemistry/please double check

Hi, I just need to know if I finally got this exercise right. Calculate the amount of heat in kilojoules released when 50 grams of steam at 125 Celsius are converted to 50 grams of ice at -125 Celsius. so, qw= 50*4.184J/g C (125 C-o)= 26.15 x 10^3 qi= 50*2.09*(-125)=-13.065 KJ...

check my answers? language arts

1. The fire's angder could no be contained. A). personification *** B.) simile C.) metaphor 2. The flames ran along the deliberate rows of vines, like long curved fingers reaching for the horizon, lighting the night sky. A). personification B). simile C). metaphor *** 3. ''We ...

Algebra 2

Hello can you please help me to generate a number line to use in Algebra. Can you attach one for me and where can I find one on line that is printable. Thank You.

English

Can you please check these sentences for me, please? Thank you. 1) Why was the 18th century England called Augustan? 2) What were the Augustan (not Augustan) interested in? 3) Who were the first political parties and who did they descend from? Who were they supported by? 4) ...

check my answer please

A ball of mass 2kg travelling in a straight line at 4ms^-1 is acted on by a force of 3N acting in the direction of motion for 5 seconds. What is the speed of the ball after 5 seconds? vf=vi+at but a=force/mass a = 3÷2= 1.5 vf=4+1.5×5= vf=4+7.5 vf=11.5m/s^-1 Is this correct? ...

Math - Please Check My Answers

Please help me with the following two problems: Find the greatest possible error for each measurement. 512 m A. 0.5 m C. 0.5 cm B. 5 m D. .005 cm I think the answer is A. Is this correct? Find the greatest possible error for the given measurement if it is to the nearest 10 ...

Math/Algebra HELP

Can you please check these answers: 1. If the first Now= -9, which equation represents this sequence? -9, -4, 1, 6, 11 A. Next= Now -5 B. Next= Now + 5 C. Next= 5* Now -1 D. Next= 5* Now + 1 Answer: A 2. Which inequality statement is true? A. 8 < (a square root sign with 78...

Chemistry: check answers

Please check. Thank you. 2. What is the reduction half-reaction for the following unbalanced redox equation? Cr2O72– + NH4+ Cr2O3 + N2 A.) Cr2O3 -> Cr2O72– B.) Cr2O72– -> Cr2O3 C.) NH4+ -> N2 D.) N2 -> NH4+ 3. Which oxidation-reduction reactions are best ...

8th Grade Algebra- Answer Check

Solve each system of equations, give the solution and state whether there are no solutions or many solutions. 1 )3x + 8y = 1 7x + 4y = 17 Answer: (3,1) 2) -3x + 5y = -7 9x + 2y = 38 Answer: (4,1) 3) 7r + 3s = 13 14r - 15s = -16 Answer: (1,2) 4) 2x - 7y = 42 4x - 14y = 64 ...

Marketing Management

What ae subway limited target group? Are you asking what the Subway sandwich company targets as its prime customers? Please clarify your question and we'll try to help you. Actually i am totally lost at what i am really looking for. This was suppose to be another person ...

English

Could you please check these statements, please? Thank you very much. 1) When the monster comes to life, Victor is horrified by the monster's physical appearance. 2)His pearly white teeth and shiny black hair contrast with his dull, yellow eyes, shrivelled complexion and ...

math

Please check my answers! Simplify the product. 7x(x+4) A. 7x^2+4 B. 7x^2+28x <<<< C. 8x+4 D. 8x+11 Simplify the product. 4x (2x^3 - 7x^2 + x) A. 8x^4-28^3+4x^2 <<<<< B. 16x^4-7x^2+4x C. 8x^4-7x^2+x D. 16x^4-3x^3+4x^2 I just started learning about ...

Algebra-please check my answers

Solve the equation by expressing each side as a power of the same base and then equating exponents. 9^(x - 9)/8= sqrt of 9 i got 13 4^(x + 10) = 8^(x - 6) i got 38 Solve the exponential equation. Express the solution set in terms of natural logarithms. 2^8x = 4.5 i got {ln 4.5...

Algebra II

Solve x^4 - 12x - 5 = 0 given that -1 + 2i is a root. I’ve used synthetic division to get the answers x = 1 +/- 2i , 1 +/- sqrt 2 I’ve having trouble checking the answers though because of that imaginary number. How can I check these kind of problems?

College Algebra 1

Factor completely. Remember to look first for a common factor and check by multiplying. if polynomial is prime, state this. -36a^2-96ab-54b^2 I couldn't find the right answer.

Algebra (answer check)

Where is the vertex of the graph of y equals negative x squared plus 2 x plus 5 located? (1,5) < it's not this one (1,6) (-1,3) <-- (-1,2) Which values best approximate the solutions of -4x^2+7x+5=0? 0.9 and 2.3 0.9 and 5 -0.5 and 2.3 <-- -0.5 and 5 What is the ...

Algebra-- PLEASE help!

(x+3/4)^2 = 17/16 My teacher taught us a square root method, but I am confused with it on this one! I would prefer if you show me using square roots, but if you have another way, please help too! Thank you!

Algebra

I posted this last night but it didn't get answered. So I'm posting it again with hopes that, this time, it will be answered. Please solve for x: |x-6|>7 I got x=6 as a final answer, but that doesn't make sense because 6 is not greater than 7. Please help!! Thanks :)

Math-check my answers!!!

Check my answers please!!!! I really don't know how to do these but I tried my best 1. Simplify. 3x^2+ 5x-5x^2-4x+5-2 A.-8x^2-9x+3 B.2x^2+x+3 C.-2x^2-9x+3*** D.-2x^2+x+3 2. Add or Subtract.(8x – 2y) + (3x – 4y) A.11x+8y B.4x-y C.11x-6y*** D.5x+2y 3.(5x^2-4x-1)-(-4x^2-4) A...

math(check answers please)

please check my MATH. .Mr.jensen bought 2 2/3 gallons of gasoline yesterday.today he bought 3 1/2 more gallons.how many total gallons of gasoline has he bought? A.5 3/5 b.5 3/6 c.6 1/6 d.5 1/6(i picked this) Mrs.peters bought 7 1/2 yards of fabric.She needs another 4 7/8 yards...

algebra

Janelle has $ 20 and is saving $ 6 per week. April has $ 150 and spending $ 4 per week , when will they both have the same amount of money ? i know by trial and error i will get 13 weeks, but how do i solve it by algebra ? please

Algebra - can you PLEASE double check my work?

Part A: Use the properties of exponents to explain why is called the fifth root of 18. 1. What property refers to roots and fractional powers? My Answer: Rule of exponents 2. How does it apply to 18^1/5? If you multiply 18^1/5 by itself 5 times, you get 18. Part B: The length ...

algebra

Solve the linear equation using any technique you have learned. Name the technique. Check. 3x + 12 = -7x - 28 I know the answer is x = -4 and I know that substitution is the technique that is used, but I can't figure out how to set this up

Algebra 1 Check

This is the last question on my homework and I wanted to know if I got it right. Thanks! Which of the following inequalities is true for all real numbers of x? a.) x^2≤x^3 b.) 2x^3≤4x^2 c.) 4x^2≤(4x)^2 d.) 4(x-3)^2≥4x^2-3 My answer: C.

algebra

im not to good at algebra so here goes im supposed to multiply 5.(3.2) i know im supposed to multiply both sides by 5 but be on that im not sure what to do help please?

Math ; please please help.

1. Explain in detail how to determine the value of the independent variable in a quadratic relation if the value of the dependent variable is known. Please check my answer - You would substitute the value for the dependent variable, then you would solve for the independent ...

Math

Please help me with the following by checking my answer. The length of the hypotenuse of an isosceles right triangle is √6 inches. How long, in inches, are the legs of the triangle? A. 3 B. 6 C. √3 - (This is my answer.) D. √6 I am not sure on my answer, ...

7th grade science Ms. Sue please check

Hi! Can you check my answers please and I need help on 4 and 5 I cannot find the answers!!!! Please help! 2. _____ transports materials within a cell and between cells and makes up ______ percent of most organisms. (1 point) Fat; 60 Protein; 40 Sugar; 75 Water; 50 3. Which of ...

Math College Algebra

Find the zeros of the following USE ALL THE THREE METHODS FOR EACH NUMBER ( Factoring, Completing the Squares and Quadratic Formula) 1.f(x) =3x+5 2.g(y)=y^2-3y+2 3.s(xl= -6x^2-13x+5 Please help me I need this before 2 hours to come. Please help me hpw to do this . Please help ...

language arts(CHECK ANSWERS)

please check these answers there really quick. 11.the zoo has recently acquired pandas,giraffes and lions. were does a comma belong? A. After and B. After zoo C. After giraffes(I PICK THIS) D. After acquired 12.Hector would you please relax? where does a comma belong? A. After...

English

Please check my answer THe cat licked it's paws while the dog watched. Does this sentence show the apostrophe used crrectly ? I said yes

English

Please check my answer thanks :) In research , you must document the source of all specific information unless it's common knowledge. I said True

sensory abilites of the dog

Please check my answer thanks Because dogs are pac animals, they prefer to eat A. Alone B. In the evening C. at dawn D. with others I said D

Health/ Basic Clinical Procedures

please check my answer thanks what is the normal range of a pulse rate of an adult A 60 -80 B 60-110 C 75-120 D 80-140 I picked B

Health/Specialty Exams and Advance Techniques

please check my answer thanks What can be done while performing a cystoscopy of the bladder ? A. biopsy B. U/A C pyelogram D. catheterization I think it is A

spanish

please check: "Te gusta cantar?" "Claro que si! Soy miembro del _____ de la escuela." a. equipo b. anuario c. orquesta d. coro D?

Math

Please double check me. Terry went on a 60 mile canoe trip. on first day, he traveled 21 miles. what percent of the total distance was that? 35%

Math

Please double check me. Brett saved $670 at the bank. he want to save $3800 for a trip to disneyland. what percent of his goal has been reached? 17.6%

Math check answer please

Amy paid $60.12 for a pair of running shoes that were 15% off. What was the regular price. I am coming up with 69.14 (round to nearest cent)

Math(Please check)

Translate the following sentence into a mathematical equation: "The area, A, of a circle is the product of the number pi and the square of the radius, r." A=pi X r^2 Is this correct?

math(Please check)

Find the real solutions of the equation: 14x^2 - 5x^2 - 1 = 0 I know that you have to use au^2 + bu +c = 0 so u^2 - 5x -1 which is prime. So would the answer be that the solution is the empty set?

Comprehensive English

Writeacher please check my last post, you never replied.. it kind of left me wondering.. you said you would give me some ideas.

grammar

Can you check these sentences, please? "I've always loved animals and felt I could communicate with them. To become a veterinarian, I must carefully choose the right school."

English

Hello. Will you please check the sentence for me? "The two sides have conducted negotiations and reached a compromise." Is it grammatically correct? Thank you very much for help.

chemistry

Which of the following reactions have a positive ΔSrxn? Check all that apply. A(g) +B(g) -----> 3C(g) A(g)+ B(g)------> C(g) 2A (g) +2B (g)-----> 3C(g) A(s)+B(s)------> C(g) I picked the first one and it marked me wrong. Please help(:

Art

Can you please check these two sentences, Writeacher? Thank you. 1) Each answer must be developed in no more than ten lines. 2) Only a monolingual dictionary is allowed.

Teacher Aide-Pennfoster

Im almost done finishing this course online and I need to check my answers for Exam number 02604500 Helping Abused Children please.

math

will someone check to see if I have this question correct please. divide and simiplify to lowest terms. __2x^2-8_ divided by __x-4__ 5x-8 5x-8

Polynomials check my answer please

I need help bad i been doing this homework since i got home at 4:00 and am stuck on this problem. X -1 : X-2 =sum (x+1)+(x-2)=(x+x+1-2) diff (x+1)-(x-2)=(x-x-1-2) Product (x-1)(x-2)=(x^2-1)

sociology

Of the following, which BEST characterizes India 1Single-party state 2Socialist 3Multicultural 4Authoritarian I think the correct answer is 4 can you please check

math - pls check!!!

29) 4k - 1 >= -3 30) 6(c - 1) < -18 31) 3t > 5t + 12 32) -6/7y - 6 >= 42 33) 4 + x/2 > 2x 34) 3x + 5 <= 2x -8 35) 13.5a + 7.4 <= 85.7 36) 42w > 2(w +7) ANSWERS: 29) k >= -2 30) c < -12 31) t < -6 32) y <= -56 33) x < 8/3 34) x <= -13 ...

please check my answers!!!

All of the following advances in technology contributed to the Age of Exploration EXCEPT the mariner's compass. circumnavigation. the astrolabe. the caravel. ***

Vocabulary

Mary gulps down a cup of tea quickly. I am not sure whether use present or past tense. Please help to check. Thanks & regards,

Writing

Please check this Apostrophe: 1) Kates' sister 2) the giraffe's neck 3) the parent's anniversary 4)the senator's cars 5) Toms' folder 6) the deer's habitat

Math (please check my answer)

Write a proof for the following. I have 2 answers but I don't know what the other 2 would be? Can anyone help?i68.tinypic(.)com/k2nw9.jpg

Social Studies

In this section of the Mahabharata, Krishna talks about doing one's duty. 1. Ramayana*** 2. Veda 3. Upanishad 4. Bhagavad Please check my answer

Can anyone check this? - Math(integration)

The question can be found at display.cgi?id=1501575066 I can't post website addresses. Please add the site name to the front. Thank you!

MATH!

If the edge of a cube is increased by 50%, then the volume is increased by x%. Find x. PLEASE HELP. THANK YOU. Let Y = edge of a cube. Y + 0.5Y = 1.5Y = new edge of the cube. Then old volume is Y^3 New volume is (1.5Y)^3 = 2.375Y^3. %increase = ([3.375Y^3 - Y^3]/Y^3) x 100 = x...

English

Can you please check if everything is OK, please? Thank you 1) At first, the three witches prophesy to Macbeth that he will be Thane of Cowdor and then king of Scotland. In the fourth act they tell Macbeth to beware of Macduff. 2) They also tell him that no man born of woman (...

chemistry - Can you please check

Calculate the amount (g) of each of the following salts that need to be added to a 200 mL volumetric flask to produce a 2 M solution of S. CaSO4 (NH4)2SO4 Fe2(SO4)3 Dr. BOB222, Could you please check the following? Thank you. CaSO4: moles x atomic mass = .0400 x 32.066 amu = ...

Algebra(check pt 3)

1)The dimensions of ST. S[7/12 -1/9] [-1/3 1/9] T[4 -5 2] [8 -1 3] answer=2x3 2)The pair of matrices that are inverses. P[3 1] Q[4 4] R[0 -1/4] [-4 0] [12 21] [1 3/4] S[7/12 -1/9] T[4 -5 2] U[-9 6 4] [-1/3 1/9] [8 -1 3] [-5 -2 3] V[3 1] [0 2] [-4 5] answer=S and R 3)Find the ...

Algebra check

Convert to exponential equations. 12.) m=log3 9 I have the answer as 3^m =9 13.) log2 64=6 I have the answer as 2^6 =64 Are these answers right?

Algebra - check to see if correct

-7yt/3x= ?/18xyt i got 6yt/6yt the answer being 1yt/18xyt

pre algebra check

There are 30 students auditioning for new openings in a chorus. How many ways can you choose 4 students to be in the chorus? 30*29*28*27=657720

Algebra Answer Check

What is the simplified form of the following expression? 7m^2 + 6.5n - 4n + 2.5m^2 - n a. 9.5m^2 + 1.5n (?) b. 4.5m^2 + 1.5n c. 1.5m^2 - 4.2n d. 9.5m^2 - 1.5n Simplify the following expression. 1/3(21m + 27) a. 7m + 27 b. 7m + 9 (?) c. 63m + 9 d. 7m + 81 What is the sum? 7/4...

Algebra 2

Given a point (-2,5determine a point that satisfies the specified symmetry. 1. Origin (2,-5) 2. y-axis (2,5) 3. x-axis (-2,-5) 4. y=x ? Could you check if 1-3 is correct and could you help me on #4

ALGEBRA PLEASE HELP ASAP

find the volume of a cylinder with a diameter of 16mm and a height of 5.7. A.2,292mm^3 . . . 4,584mm^3(i think its this one) . . . 689mm^3 . . . . 1,146 (but i also got an answer close to this but the tens place was 5) PLEASE HELP QUICKLY THANK YOU

college algebra

please solve by method of substitution 0.3x-0.4y-0.33=0 0.1x + 0.2y -.21=0 please give all steps to solve.I think I understand the basic concept but this is little more complicated for me. Thanks in advance

Algebra Please Help

Can you please give a example so that I can understand it better. 1)How can you tell whether a polynomial is written in factor form. 2)Construct a trinomial whose greatest common factor is 2x^2.

college algebra

Can someone please help me find the x-intercepts and y-intecepts of this equation. I have the radius, and center but I can't seem to get the intercepts. x^2+y^2=16x-18y+145=25 Please show work. Thanks!!

pre algebra

Check whether (-4, -12) is a solution of the system of equations. y = 6x + 12 2x - y = 4 When the graphs of two equations are parallel, there are infinitely many solutions. y = x + 4 y = 3x solution: ( , )

ALGEBRA! URGENT. Check Answers!

1. 18x^2 + 6 + 4x - 15x^2 - 4 + 13x Answer: 3x^2 + 17x + 2 2. 3x^2 + 6 - 2x + 5x - 4x^2 + 9 Answer: -x^2 + 3x + 15 3. 3x^2 + 5x - 7x + 3 - 5x^2 + 2 Answer: -2x^2 + 2x + 5 4. In the expression -7x - 3x^2 + 5. What is the coefficient of x? Answer: I think it's 7 or -7 Thanks!

algebra functions check my answer

For each problem, construct two composite functions, . Evaluate each composite function for x=2 f(x)=3x g(x)=1/x f(g)*(x)=3x(1)/x x=2 3x(1)/x=6 g(f)*(x)=(3x)=2*3x=6 x=2 3*(2)=6*6=36

HISTORY

4. The United States cut off sales of oil to Japan after the A. Japanese attack on Dutch Indonesia. B. Japanese attack on Pearl Harbor. C. Japanese occupation of southern Indochina. D. Japanese occupation of Hong Kong. I chose the answer B. please can you please check my answer.

algebra

Please check for me and tell me how to correct, thank you. Mary wants to put a walk( 10 ft wide)all the way around her house. house Length=60 ft width 45 ft A. write a polynomial that represents the total area of the house and walk total area of walk and house = (2x+60)(2x+45...

franctional interests

Hello, I am having a difficult time breaking the following fractions down! what is the common denominator? 98/983 of a 1/2 % 187/983 0f a 1/2% 39/983 of 1/2 % 155/983 of 1/2% 34/983 of 1/2 % 64/983 of 1/2 % 25/983 of 1/2% 65/983 of 1/2% please send me an e-mail, please thank ...

Math

Can you please check my answers. Determine whether the function is a polynomial function. f(x) = 4x + 4x^5 -Yes f(x) = 4 - 1/x^2 -No

math-please check my answer

Find the slope of these two points (3,5)and (-5,-2) Is the slope 3?

Math-please check my answer

Find the slope of the following points(8,9) and (10,-9) -9 - 9 / 10 - 8 = -18/2 = -9 is the slope?

Spanish -Please check

If I ask Manuel if he is in a hurry I could say: Manuel, ¿Tienes prisa?

Trading Posts for Anonymous

Please check my last 2 posts where I posted first. Sra

GK or Dr.Bob222...Chemistry please help...

Please refer to the previous post Chemistry Help Please. Moles of S203^2- = (molarity)(volume): =(0.032400 mol/L)(0.053 litres S203^2-) = 0.03240 moles S203^2- Posted by DrBob222 on Wednesday, October 22, 2008 at 9:37pm in response to GK..please check...Chemistry Help Please I...

*Math*

139 of CanTexh Supply's employees belong to a union; the remaining 248 employees are not union members. What percent of employees are in the union? (((please help, i have test tomorrow the first thing in the morning!!!:S))) i tried it myself but can u check if its rite if not ...

math

Megan factored the expression (-12x^2+52x-35) as (-2x+5)(6x-7) but when Jacob applied FOIL principle and multiplied out (2x+5)(6x-7) he got (-12x^2+44x-35),thus megan's solution does not appear to check please help megan to understand better.Explain your reasoning and ...

math

Megan factored the expression (-12x^2+52x-35) as (-2x+5)(6x-7) but when Jacob applied FOIL principle and multiplied out (2x+5)(6x-7) he got (-12x^2+44x-35),thus megan's solution does not appear to check please help megan to understand better.Explain your reasoning and ...

Ed Tech plz helppppp

What does it mean to troubleshoot your computer? identify problems with your computer and attempt to fix them*** to open your computer to see what's missing from the hard drive to switch the mouse and keyboard plugs to download and print an new computer manual 2. If your ...

ALGEBRA 1

Please check for me.Without drawing the graph of the given equation determine (a)how many x-intercepts the parabola has (b)whether it vertex lies above, below or on the axis. 1. y=x^2-5x+6 I use the determinant sqrt b^2 -4ac (-5)^2-4(1)(6))=1 There are two real numbers The ...

ALGEBRA 1

Please check for me.Without drawing the graph of the given equation determine (a)how many x-intercepts the parabola has (b)whether it vertex lies above, below or on the axis. 1. y=x^2-5x+6 I use the determinant sqrt b^2 -4ac (-5)^2-4(1)(6))=1 There are two real numbers The ...

Spanish -9th grade-Please check and advise

I need to write about my geometry class and what I do in the class. I need to use "la tarea" in the sentence. I'm not sure if I could use this to describe the calculations I do. I'm confused how to even conjugate or use this. Would it start with "Hago la tarea de los calculos...

Advanced math--check answer please

Which system is inconsistent? A) y=0.5x x-2y=1 B) 2x-y=8 4x+y=5 C) x+y=0 2x=y D) y= -1 x=2 Answer: A Thanks

math

Please check this problem to see if I answer correctly x - 3 > 8 Answer x > 11

Math- Please check answer

(.200-x)2 Would the answer be .400+x2

math

Solve the equation. Check the equation. c= square root of(3c-8) Please Help!!!! Thanks.

Math(Please check)

solve for x: log4 X - log4 2 = 2 log(2x) = 2 Now what do I do?

8th grade Math

Can you please check my answer? Solve for x. 7- 7/2x = -5 my answer: x = 42

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