Algebra, help + check please

106,764 results, page 8

  1. Chemistry (URGENT)

    I have a test soon. If you can help me with these questions, that would be great. 1. Define and describe the following. a)Alkaline - metal - base b)Corrosive - burn/eat away - acid c)Caustic - harsh - both? (acid + base) d)Low pH - 0-6.99 - acid Please check my answers and ...
  2. algebra

    is -2i square root of 2 a solution to x=8? lets check: (-2i sqrt 2)^2= -1^2 * 2^2 * i^2 *2 =-8 Answer: no.
  3. Algebra

    Factor the trinomial. t^3-4t^2-32t = t(t+4)(t-8) can someone help me pleaseand check my answer.
  4. Algebra 1

    PERFORM THE INDICATED OPERATIONS AND SIMPLIFY. x-8/x-9-x+1/x+9+x-27/x^2-81=x^3-81x^2-7x-27/x^2 Can you check this equation for me.
  5. Algebra II (check)

    Use synthetic division to find (2x^3 - 5x^2 + 7x - 1). _1|2 -5 7 -1 2 -3 _____________ 2 -3 4|-1 2x^2 - 3x + 4(answer)
  6. Algebra II (check)

    Write the expression m^7/9 in radical form. 9sqrt m^7 (answer)
  7. Algebra 3 check only

    (2^-3)(x^0(x^2)) all over _______ (x^-3)(xy^-3)(y) does it equal x^2)(xy^3)(x^3) ______________ 8y
  8. Algebra (repost)

    Can you help me on this problem as well? (or anyone.) Solve each inequality and check your solution. h - > -7 4 (bumping)
  9. Algebra Check

    Solve the system 4x - 7y = 5 14y = 8x + 10 I got y = 10/-13 x = -5/52 but it doesn't seem right
  10. algebra

    use the distributive law to factor the following and check 3+27b+6c
  11. pre algebra homework check

    Find the product and simplify y(4y + 12) =4y^2+12y????
  12. algebra hsa

    5x-3=2(x-6) i got -3 when i solved it but when i check my work its not correct what am i doing wrong?
  13. Intermediate Algebra

    Solve and check each radical equation. square root y+10=y-2
  14. algebra

    Solve the equation check for extraneous solution 6|6-4 x|=8 x+4answers are x=1, x=5/2.or x=2, x=5/2, x=5/2or x=1
  15. algebra

    simplify each expression 44/9x-7/4+12/7x+1 I worked it out and just went to check it thank you
  16. Algebra

    confirm this is correct bec. when I check it, it doesn't add up the same. 13 - 3P = -5(3+ 2P) 13 - 3P = - 15 -10P 13 = -15 -7P 28/-7 = -7P/-7 -4 = P
  17. Electromagnetic induction-check answers

    Please check my answers: why does an iron core increase the magnetic iduction of a coil of wire? -I am thinking it has something to do with the voltage being increased. Will a cyclist coast farther if the lamp is connected to the generator on his bicycle is turned off? -I say ...
  18. Physics - check my work

    A cannon is fired from a cliff 190 m high downward at an angle of 38o with respect to the horizontal. If the muzzle velocity is 41 m/s, what is its speed (in m/s) when it hits the ground? Please check my work. I think it’s wrong, but I don’t know where I’m messing up… ...
  19. Physics

    I have no idea how to do this. Anyone help? A cyclist passes a race check point at +5.5m/s and then accelerates ata constant rate of +.55 m/s^2. The cyclist forgot to check in at the check point, and after 20s turns back around to head back. How far did the cylist move from ...
  20. algebra

    i have two answers to this problem so am not sure which way I need to do in or should say the order i should do it. lease help??????? problem is 7x-5+3x=6+x-10 what is the order to work this out there is no brackets to this problem 7x-x+3x=6+5-10 6x+3x=11-10 8x=1 ------- 8 8 x...
  21. Math PLEASE HELP

    Please finish these questions so I can check my answers. All my answers are at the bottom. Adding and subtracting mixed numbers. Please finish these questions. The answer must be reduced to lowest terms! 1. 3 2/5 + 6 1/5= 2. 4 2/5 + 1/10= 3. 2 3/12 + 2 3/6= 4. 5 3/9 + 2 1/3= 5...
  22. algebra 2

    A bag contains 7 blue marbles, 5 red marbles, and 9 green marbles. A marble is taken at random from the bag. What is the probability that the marble is blue or red? Please check my answer 12/21
  23. algebra ineqUALITIES

    can you check these tell if the number after the: color is a solution x < 7; 7 i say yes p > -3;3 i say yes k is greater than or equal to 5; 0 i say no 3z is less than or equal to 12;4 i say yes n - 5 > 3; 6 i say no 2g + 8 is geater than or equal to 3;-1 i say yes ...
  24. essay check please

    This is the introduction of my essay , please check it !!!!!!!!!!!! It would really help “All men are born equally free”-Salmon P. Chase. A very important character that shapes our society is equality, but many people don’t believe in it. Racism and discrimination are ...
  25. math

    solve algebraically and check y=8x+3 y=-4x-21 8x+3=-4x-21 +4x +4x 12x+3=-21 -3 -3 12x=-24 x=-2 y=8x+3 y=8(-2)+3 y=-16+3 y=-13 (-2,-13) check y=8x+3 -13=8(-2)+3 -13=-16+3 -13=-13 y=-4x-21 -13=-4(-2)-21 -13=8-21 so -13=-13 these check, so did I do this correctly? Thanks for ...
  26. Simplify

    Simplify the following number. ∛729 I think it is ∛9, but I do not know. Please help, and check my answer. I will appreciate it if you guys can answer this as soon as possible. It is part of a RATIONAL EXPONENTS question. The original equation was 9^(1/3)∙&#...
  27. math***CHECK ANSWER***

    please check this one answer. 3.everyone in andy's class has to do a science project. Out of the 20 students,80% have completed their project.how many students still need to finish their projects? A.100 students B. 36 students C. 16 students D. 4 students (I PICK THIS)
  28. math (check answer plz)

    Carol has a collection of 100 stamps the graph below shows the percentage of stamps she has from each country how many more of Carols stamps are from france than from england? France: 24%, England:22%, Norway:29%, Italy:25...
  29. Chemistry(Please check)

    . Ksp for Fe(IO3)3 is 10-14. Two solutions, one being iron(III) nitrate and the other being sodium iodate, were mixed. At the instant of mixing, [Fe3+] = 10-4M and [IO3-] = 10-5M. What happens? My answer is that a precipitate forms because Qsp > Ksp. Would you agree? ...
  30. college algebra

    Demand Equation: The price p, in dollars, and the quantity x sold of a certain product obey the demand equation x = -5p + 100, 0 (less than or equal to) p (less than or equal to) 20 a.) Express the revenue R as a funtion of x. b.) What is the revenue if 15 units are sold? c.) ...
  31. Algebra(please check my answers)

    **Fill in the appropriate vocab words that best fit into the sentences below** ~" Word Bank "~ A) central angle B) line of symmetry C) reflection D) transformation E) vertical angles F) transversal G) point H) circle ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ GIVEN SENTENCES W/ ...
  32. MATh (check my answer please)

    A salesperson makes a flat fee of $20 per day plus $8per hour. Which equation or inequality can be used to find h, the number of hours the salesperson will have to work to make more than $60 for a day's work? F. 20h + 8 = 80 G. 8h + 20 < 60 H. 8h + 20 = 60 J. 8h + 20 > ...
  33. algebra

    Megan factored the expression 12x^2+13x-14 as (3x+2)(4x-7). But when Jacob applied the foil principle and multiplied out(3x+2)(4x-7), he got 12x^2-13x-14; thus, Megan's solution does not appear to check. Why is that? Please help Megan to understand this better. Explain your ...
  34. Math

    Check answer PLEASE!! Kevin wants to calculate the value of the expression below. -17 + 3 Which shows an equivalent way kevin could write this expression? (A.) -(17 + 3) B. -(17 - 3) C. (-3 + 17) D. (-3 - 17) Please help as soon as possible!! I have no one to help me and i don...
  35. 8th Grade Algebra: Answer Check

    Find the length of the 3rd side of each right triangle. 1. 8^2+15^2=c^2 Answer: c=17 2. 5^2+b^2=13^2 Answer: b=12 3. 9^2+13^2=c^2 Answer: c~15.81 Simplify. Assume that all variables are nonnegative. { this means square root 4. {12 Answer: 2{3 5. 2{75 Answer: 10{3 6. -3{72 ...
  36. chem can u check answer please

    the solubility of silver sulfate in water is 0.223%(w/v) at 35 degrees celsius.calculate the solubility product of this salt at this temp. I got 1.46 X 10^-6 M is this right please thanks Andy
  37. Math

    1. Which equation below matches the relationship shown in the table? Table- X: 0, 1, 2 Y: 0.5,3.5, 6.5 A. y=2x+0.5 B. y=2x+2 C. y=3x D. y=3x+0.5 Please help, thank you. BTW I would share my answer for anyone to check but I am not sure how to do this so please give the process...
  38. Paul Martin

    Who knows what website I can go to for some baby pictures of Paul Martin? It is for my social studies project. Thankz:P I did an internet check and found only pictures of the Prime Minister as an adult. I suggest you try finding a biography in your library. There is also a ...
  39. pre-algebra

    USE THE DISTRIBUTIVE PROPERTY TO SIMPLIFY. 3(X+3) Wouldn't it be 3x + 9? Check my thinking.
  40. College Algebra

    Can someone check my work for me again! I really appreicate it, I'm not the best at this. (1/3)x+(3/4)x = 13 (4/12)+(9/12)x = 13 (13/12)x = 13 x = 13/(13/12)= 12
  41. algebra 1b

    Solve each system using substitution. check your solution. a = 2/3b -3 a = 2b - 18 c = 3d -27 4d + 10c = 120
  42. Algebra II (check)

    Assume that no denominator equals 0. (8y^3+27)/(2xy-10y+3x-15) I don't know how to solve this one.
  43. Math 116 algebra

    solve using the multiplication principle. don't forget to check -5/6x = -7/8
  44. algebra

    is it ok if one of u experts can check some of my math homework would that be a problem thanks
  45. algebra

    Factor completely 2x^3y-12x^2y-14xy 2x^2y-6xy-7xy could check this problem
  46. pre algebra

    how would you solve and check the answer, back to the original problem for 3w+2+3w=-4+9?
  47. Algebra

    Find the midpoint M of the line segment joining the points C = (-4,-5) and D = (2,-1). I got (-1,-3) can you check me? Thanks
  48. algebra

    solve and check.label ant contradictions or identities. 5(t+1)+8=3(t-2)+6 5t+5+8=3t-6+6 5t+13=3t 2t=-13 t=-13/2 check59t+1)+8=3(t-2)+6 5(-13/2)+1+8=3(-13/2)-2)+6 -65/2+13=-39/2 13=-39/2+65/2 13=26/2 13=13 want to know if this right
  49. algebra

    need help don't exactly understand the question: Factor and check by Multiplying 6x + 10y -2
  50. pre algebra homework check

    Find the sum or difference. 4s^2-11s+s^2-6s+21 Is it 5s^2-17s+21?
  51. Intermediate Algebra

    Solve each radical equation. Check your solutions. square root 5x-4=6
  52. algebra

    Show all steps solve the equation check for extraneous solution 9|9-8 x|=2x+3
  53. Algebra 1

    I need to factor the expression t^2 + 4tv + 4v^2 I got this answer: (t + 2v)(t + 2v) Check my work? Thanks!
  54. Algebra 1 Answer Check (Reiny)

    Factor each trinomial. 1. x^2 + 6x + 5 A: (x + 1)(x +5) 2. x^2 - 7x - 12 A: (x - 3)(x - 4) Solve each system by substitution. 3. 2x - y = 1; x - y = -2 A: (3, 5)
  55. Algebra

    My question is: b-3= -4 A.) 7 B.) 1 C.)-1 D.)-7** I think it may be D.). I would just like someone to check my answer.
  56. Easy Algebra Equation

    5-2(x+6)=14 Solve for x. I got 10.5 but the check won't come out right???
  57. Algebra 2

    Which of the following could be the equation of the graph shown below? Check all that apply.
  58. Algebra

    I have answered the question but not sure how to check for extraneous solution. x/(5x+4)=3 The answer is -6/7
  59. algebra

    For the quadratic function f(x) = - x^2 +2x + 6, find the vertex and the axis of symmetry, and graph the function. Again, I need help with this as these are practice examples for an upcoming quiz and I stink at this part of algebra and I need to get it otherwise I won't ...
  60. Science - Maps and Computers - Please Check

    Please help me with the following: A single ocean color satellite can collect how many data points? A. 2,000 B. 2,000,000 C. 20,000 D. 2,000,000,000 I know the answer is not D, because I got it wrong. I think the answer is mostly A, but I also think it is possibly B. Is A ...
  61. math(check answers please)

    please check my answers and thanks have a nice day. 2.which of the following ratios is equivalent to 5/20 A.1/4(I PICKED THIS) B.1/5 C.20/100 D.2/5 3.which of the following ratios is ((NOT)) equivalent to 4/8? A.1/2 B.2/4 C.20/45(I PICKED THIS) D.12/24 4.which of the following...
  62. please check(Social studies)

    please checkk 3. Mexico is building a stronger workforce by A.holding free elections B.permitting remissions C.eliminating competition D.investing in education(I PICK D.) if you answer i really hope your correct !
  63. Algebra

    Find the next three terms in the sequence? -6,5,16,17 A 38,49,60*** B 37,47,57 C 36,45,54 D 36,46,57 3 What are the first four terms of the sequence represented by the expression n(n-1)-5? A -7,-5,-3,1 B -5,-10,-15,-20 C 0,2,6,12 D -5,-3,1,7*** 6.Given the function rule f(x)=x...
  64. Math-- Please check

    A package of 16 tea bags costs $2.29. Find the unit price in cents per tea bag. Round to the nearest tenth of a cent. I get 14.3 cent Will you check to make sure I am correct? How do I round it to the nearest tenth? Or is it already rounded to the nearest tenth? Please help! ...
  65. Math

    Peter received a six month post dated check for 100,000 (the check can only be cashed after six months) he offers it to a friend for 92,000 .His friend's money is presently earning 10% compounded monthly.If there is 20% withholding tax on interest ,which is better option for ...
  66. chemistry

    hi, Can you please double check to see if i have got this right? Is the empirical formual for oxide of arsenic As2O5? Cheers ;) Arsenic forms two oxides with oxygen. One is As2O5, the other is As2O3. I'm glad you posted today; please tell your friend you were talking with ...
  67. Please Check This 2!

    p^4-1=(p^2)(p^2+1) Typo? p^4-1=(p^2-1)(p^2+1)
  68. math- check this please

    1. 3t<-9=t<-3 2.4m>8=m>2 3.10<-2w 5<w 4.-20>-5c 4>c 5.-27>3z -9>z 6.-7b>42 b>6
  69. Please check answers

    (-2)7=-2^7 -2^5 = -2*-2 = 4 * -2= -8 * -2 = 16 * -2 = -32
  70. Math

    Please check 15/16 x 2/3 = 5/8
  71. Math

    Please check 2/5 + (-7/8) = -6
  72. math

    Please check -27=8x-5x -27/3=3x X=-9
  73. Math

    5x - 3 = 7x + 11 x=-4 3w -4 = w+8 w =6 Please check. Thanks
  74. algebra

    Fast food. If four out of five doctors prefer fast food, then at a convention of 445 doctors, how many prefer fast food? 4/5=x/445 5x=1780 x=356 please check if completed right
  75. Algebra

    Complete the table for each function. 1. f(x) = √x The x values are 0, 1,4 and 9. The corresponding y values that I got are 0, 1, 2 and 3. 2. g(x) = -1/4√ x The x values are 0, 1, 4, and 9. The corresponding y values that I got are 0, -1/4, -1/2 and -3/4 3. h(x...
  76. Science Please Check!

    Which term describes a type of trait that is usually expressed only when an organism has two identical alleles for the trait? A- homozygous B- dominant C- heterozygous D- recessive My guess is D. Please help!
  77. slope algebra

    given ab and its midpoint m. the coordinates of a are (-10,-3) and the coordinates of M are (-4,-1) a. find the coordinates of B. b. find the slope of am. c. find the slope that is perpendicular d. find the slope that is parallel e . write the equation of AM answers. please ...
  78. Algebra 1B--Check Please!

    1.) Determine the equation of the axis of symmetry. y = -5x2 - x + 9 Answer 1.) x=3/2 2.) Determine the equation of the axis of symmetry. y = -6x2 + 3x - 4 Answer 2.) x=-2/10
  79. Algebra

    I have this math probelm z-(3z)/(2-z)=(6)/(z-2) in my book it says to solve the equation. I have worked this problem many times and I keep comming up with different answers. When I use an online calculator to check my work it is giving me an answer of z=-3 I have not gotten ...
  80. English

    Could you please check this letter, please? Thank you. 1)I'm still looking for an accommodation in Yellowstone Park but everything is sold out from 8 to 12 August. 2)My husband booked a cabin in Old Faithful lodge last week under the name "Grande" and sent you details of his ...
  81. Algebra

    Hiya. I have 7 expressions that I have been asked to simplify. I worked all of them out, and if you could, I'd like you to check my work for me. Here they are: 1. (x^2 + 3x - 9) + (-4x^2 + 2x - 3) My answer: -4x^4 + 5x - 12 2. (x - 2)(3x + 5) My answer: 3x^2 - 30x - 10 3. (r...
  82. Spanish please check

    please check if I answered these questions correctly-they had to be in the past tense-not sure what number 6 is asking 1.¿Comó te sentiste ayer? Me sentí muy bien ayer. 2. ¿Adonde fuiste ayer? Yo fui al cine. 3. ¿Adonde fue tu mama ayer? Mi mama fue a la tienda. 4. ¿...
  83. Algebra

    I think I have the correct equation, but can someone please double check and tell me if I am correct. Scenario: Suppose that the width of a rectangle is 5 inches shorter than the length, and that the perimeter of the rectangle is 50. Question: Set up an equation for the ...
  84. Algebra- Check Please

    A farmer is tracking two wild honey bees in his field. He maps the first bee's path back to the hive on the line y=9/7x. the second bee's bee path follows the line y=-3x+12. Their paths cross at the hive. At what coordinate will the farmer find the hive? I got (-6/7, 6)
  85. Intermidia Algebra

    Andrew factored the expression -12x^3-28x^2-3x as -4x (3x^2-7x+9). But when Melissa applied the distributive law and multiplied out -4x (3x^2-7x+9), she got -12x^3+28x^2-36x; thus, Andrew’s solution does not appear to check. Why is that? Please help Andrew to understand this...
  86. Math(Please Check!)

    1. Which line is the flattest (or is less steep)? Why? a.y = 5x -6 b.y = 5x + 6 c.y = x - 3 d.y = 1/2x + 3 I think It is C.It has the smallest slope. Someone Please Help me! ...Help me... Doesn't d have the smallest slope? 0.5x. Please...I just want to see.. Margie -- You need...
  87. English

    Why don't we go to the park together? 1. I don't feel like it. 2. I'm sorry,but I can't. 3. I'm sorry I can't. 4. Sorry I can't. 5. Sorry, but I can't. 6. I'm afraid I can't. 7. I'm afraid, but I can't. 8. Afraid I can't. 9. I'm afraid that I can't. ================== There ...
  88. Pre-Algebra

    Please help to solve to find x,y 1. y=7x-3 2. 4x+2y=8 Take the value of y in the first formula and substitute it for y in the second formula. Solve the second formula for x. Once x is found, solve for y in the second formula. Check by inserting both values into the first ...
  89. Algebra

    Please check this. f(x)= 1/(x-1)^2 - 5 D= all real numbers, x does not equal to -5 R= all real numbers, y does not equal to 1
  90. Health care please check my answer

    Please check my answer thank you A 15 year- old female patient has experienced daily nausea for the past two months. The patient states that she feels like " I've eaten something that has upset my stomach" The patient has noticed a weight gain of 10 lb with in this two- month ...
  91. 8th Grade Algebra

    Simplify each rational expression. 1. (x^2+1)/(x+1) 2. (y^2+4)/(y+2) Check Answers: 3.(2t^2+6t+4)/(4t^2-12t-16) Answer: (t+2)/2(t-2)
  92. pre algebra

    solve and check the following equation:I have no idea as to how to answer this. 69g-60=5g-2-g
  93. algebra

    Could someone check this problem for me? 7a^6/10v^4 multiplied by 100v^7/49a answer 10a^5v^3/7
  94. algebra

    Solve and check all proposed solutions. Show work for solving and for checking. x+1/x-1 - 2/x^2-x=0
  95. algebra

    look first for the common factor check by multiplying if polynomial is a prime state this. y^2-y+0
  96. Algebra 2

    Divide and check. Write your answer using non negative exponents 40x^2y^2/5x^4y^2. Thank you.
  97. algebra 2

    Divide and check. Write your answer using none negative exponents. 40x^2y^2/5x^4y^2. Thank you.
  98. Intermediate Algebra

    Factor by grouping, if possible, and check 5x3 + 4x2 − 10x – 8
  99. algebra

    Which quadrants does the line representing the equation y = 8x pass through? Check all that apply.
  100. algebra 2

    If Q varies inversely as the square root of R and Q=2 when R=4, what is Q when R is 25? does Q=625 im not sure can someone double check it for me.
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