1. algebra

    multiply and simpify y^-4*y^6*y^7=
  2. math

    (5+4ã2)(3+4ã10) multiply and simpify as much as possible
  3. math

    simpify 4!
  4. Algebra 2

    (4-3/x^4)/(5+2/x3) Simpify, Leave in factored and reduced form.
  5. math

    simpify: 3radical27x^10/5x^3y^5 7radical2x+2radical72x^3-radical162x^5 sorry don't know how to do the radical sign.
  6. Math

    The problem to solve is: (x+20)(x-12)(x+4)>0 but I can't figure out how to do this right so I left off the >0 and tried to solve the equation. x+20 evaluates to x+20 x-12 evaluates to x-12 Multiplying x+20 by x-12 is a classic Algebra problem. Here, you
  7. Math

    could you tell me three equivalent fractions for each: 2/3 8/16 4/10 3/4 Just multiply or divide by a common number. For example, 2/3 = 4/6 = 6/9 = 8/12 = 10/15 8/16 = 4/8 = 1/2 etc. Just multiply each fraction by 3 different numbers. For example
  8. someone help

    my post is still on this page as algebra, could someone elaborate on what bobpursley tried to help me with. See your original post. I am guessing you are referring to your question 5)Simplify:(5x-4)^2 and your answer= 25x^2 - 16 (5x-4)^2 =(5x-4)(5x-4) =
  9. Algebra

    Linear Equation -8x+4y=-12 Answer book states is y=2x-3 I am not arriving at this answer when I simpify
  10. algebra

    Solve. x/9-1/7=26/63 STEP 1: The LCM is _________ To clear denominators, multiply each side of the equation by the LCM. _______/1 (x/9-1/7)=__________/1 multiply 26/63. STEP 2: Use the Distributive Property. _____/1 multiply x/9 - _________/1 multiply 1/7
  11. Math(Please respond)

    .50 - x / x = 3.20e-1 I need to solve for x. I was going to do .50 X 3.20e-1 and then take the square root but this is not correct. I am not sure what to do. Thank you for your help. Math(Please help) - Reiny, Tuesday, April 17, 2012 at 3:18pm You probably
  12. Math, Please Help!

    Ned divided a given number by 3 and then added 2. If he should have multiplied the number by 3 and then subtracted 2, which of the following two steps can he do next to get the correct answer? Subtract 4 and then multiply by 9. Subtract 12 and then
  13. math

    how do i do x2+12x+32 x2+12x = 14x+32 subtract 14x from each side 14x=32 divide by 2 7x=16 x=16/7, which is 2 and 2/7 ok maybe you typed that question wrong? is it x^2 + 12x + 32 ? if it is then the solution is: (x+8)(x+4) because when you multiply them
  14. Multiplying Polynomials

    Use the distributive property to write (each of) the following expression(s) as the sum of monomials. M. (t - 1)(t + 1)(t^2 + 1) I already know that I must multiply across, but I am a bit confused regarding the order to multiply in and which variables to
  15. need guidance on an algebra problem

    20 x+3(y-1)=11 2(x-y)+8y = 28 multiply out 20 x+3y-3=11 - Is this correct? 2x+14y = 28 Using the addition method, would you multiply the first problem by 2 and the second by 20? No. In the second multiply out, you should have gotten 2x -1y+8y=28 or
  16. algebra II

    Select the best possible first step to solving the system by first eliminating the y variable. x + 8y = –4 2x – 4y = –13 Multiply the first equation by 2. Multiply the second equation by 2. Multiply the first equation by –2. Multiply the second
  17. math-5

    Which choice is the answer? Show me please. Tara spent 3 hours doing homework. She spent 1/3 of her time on math, and 1/5 on science. Which method would provide the most reasonable estimate of the totaltime Tara spent on her math and science homework? a.
  18. MATH

    1. To convert from kilometers (km) to meters (m), multiply by 1000. How many meters are there in 6.2 km? A~6,200M? 2. Multiply.5.75 * 10 (the problem is 10 to the power of 2)A~ 575 3. Multiply.0.8175 * 1, 000 =A~817.5?
  19. math

    Mrs. Brock's class has 23 students. Each student has 8 markers. Which describes how to find the total number of markers in the class? a) Multiply the ones. Record; b) Multiply the tens. Record; c) Multiply the tens. Record. Multiply the ones. Record. Add
  20. math

    Mrs. Brock's class has 23 students. Each student has 8 markers. Which describes how to find the total number of markers in the class? a) Multiply the ones. Record; b) Multiply the tens. Record; c) Multiply the tens. Record. Multiply the ones. Record. Add
  21. 5th Grade math

    What is a partial-products algorithm. For example 87*65=? How do you do it and show your work? Here is how Chicago Math does it: 87 x65 multiply 80 x 60.....4800 multiply 7 x 60..... 420 multiply 5 x 80.......400 multlply 5 x 7 ........35 add the products.
  22. Math

    A student is trying to solve the set of two equations given below: Equation A: x + z = 6 Equation B: 2x + 4z = 1 Which of the following is a possible step used in eliminating the z-term? Multiply equation B by 4. Multiply equation A by 2.*** Multiply
  23. math

    For the following sequence, which description shows the relationship between a term and n, its position in the sequence? 3,5,7,9,11.... A-Multiply by 2 and then subtract1 B-Multiply n by2 an then add1 C-Multiply n by 1 I believe it is b
  24. maths

    Can you tell me how you arrive at the answer to this question: if you multiply meby2, I become a number greater than 20and less than 40. If you multiply me by 6 I end in 8. If you multiply me by4,I end in 2.
  25. math[fractions]

    how would u multiply two fractions ex. 2 2/3 times 3 5/6 First, make each one an improper fraction. To do this, multiply the denominator by the whole number in front of it and then add the numerator. Put all of that on top of the denominator: 3*2=6 6+2=8 2
  26. math

    what number makes the number sentence true?6 multiply 3 multiply 2=6 multiply 3 multiply 2
  27. Math

    8*2sq+7*(4+1)= ? Can someone explain to me what to after the parenthesis? I mean in the PEMDAS of operations says that I should multiply. Multiply what and when? By the way the actual problem is a example I got out of my book. Right at this momen there is
  28. math-5

    Tara spent 3 hours doing homework. She spent 1/3 of her time on math, and 1/5 on science. Which method would provide the most reasonable estimate of the totaltime Tara spent on her math and science homework? a. multiply 1/8 by 3 b. multiply 1/2 by 3 c.
  29. Pre-Algebra

    inequality 0.75x>3 Multiply both sides of the inequality by 4/3 if you want to know what x is. from where did you get 4/3 to multiply to find x. How do you know that? MULTIPLY BOTH SIDES BY 4/3 The 4/3 comes from dividing both sides of the equation by 0.75
  30. math, Jay

    How do these fractions turn into the following fractions. 1/3=10/30 1/5=6/30 1/10=3/30 There is a fundamental fact of math that says if you multiply anything by one , nothing changes. but 1 = 3/3 = 10/10 etc. So if you have a fraction, and multiply it be
  31. MATH

    To convert from kilometers (km) to meters (m), multiply by 1000. How many meters are there in 6.2 km? A~6,200M? 2. Multiply.5.75 * 10 (the problem is 10 to the power of 2)A~ 575 3. Multiply.0.8175 * 1, 000 =A~817.5? 4. Paula's car payment is $342.37 per
  32. Math

    Ok so I totally forgot how to find a common denominator when your adding fractions, could someone please tell me the steps to do that? :) multiply. Multiply the denominators together and this gives the new denominator. Divide each denominator into the new
  33. Math

    I want to know did I work these problems right Multiply: ( - 6)² - 4² = 36 – 16 = 20 Multiply ( - 3) ( - 6 ) + ( 4 ) ( -2) = 18 + ( -8) = 18-8= 10 Multiply: ( - 3 ) ³ - ( - 8) ( -2) = (-3) times 3 = -9 (-8) times (-2) = 16 -9 - 16 = -25 -25 Multiply:
  34. Algebra

    89. Solve for x in the equation: 6/7x - 6 = -2 I posted this before, and this is the reply I got from someone: multiply both sides by 7 6x-42=-14 add 42 to each side 6x=28 x=14/3 But I don't get how this is done because to eliminate 6/7 shouldn't I
  35. Math

    Solve the system of equations 3x-y=11 -5x+y=12 2. Perform the indicated operation and simplify (5/(x-2)+(4(x^2-2x) 3.simpify and write with only positive exponents (7x^3y^-2)/(x^-4y^9)^-3 4. find the solution of the inequality 2x-11 is less than or equal
  36. Algebra Sq Rt

    to multiply the sq rt of 3 cubed by the sq rt of 9 cubed I first need to factor them? So 9 3 times =729? and 3, 3 times is 9. Then multiply the two? to get 6561? Or Do I multiply 3 times 9 for 27 and add the 3+3 on the left of the radicand for 6? Is my
  37. maths

    a multiply b =12 b multiply c=13 c multiply d=14 what is the answer for abcd=???
  38. math

    Multiply and simplify 2/3*13 The answer is 22. Right? if you mean (2/3) * 13 or 2 / (3*13) i believe according to both your answer is wrong Is that (2/3)*13? If so, then (2*13)/3= something other than 22. Or if it is 2/(3*13) = it is not 22. Show your work
  39. Math

    When you have 4xy^3 * 2x^2y * 5xy^2 Would you add the first number and then add the powers? 11x^4y^6 ??? Thank you multiply, multiply, multiply 4*2*5 * x1+2+1 y3+1+2 You got the powers right, but the coefficent is 40
  40. math

    whats the answer to if you multiply me by 2 im greater than 20 but less than 40, if you multiply me by 4 i end in 2, and if you multiply me by 6 i end in 8
  41. Algebra

    Solve S=a/(1-r) for r S = a/(1-r) Multiply both sides by 1-r S*(1-r) = [(1-r)*a]/(1-r) Simplify S*(1-r) = a Multiply terms on the left. S - S*r = a Subtract S from both sides. S-S*r - S = a - S Simplify -S*r = a - S Multiply both sides by -1 S*r = -a+S
  42. STATISTICS

    To calculate the mean for grouped data, which of the following steps must be completed? a. multiply the number of subjects within each category by the value of that category b. divide the results of the multiplication c. multiply by the number of subjects
  43. Statistics 2

    To calculate the mean for grouped data, which of the following steps must be completed? a. multiply the number of subjects within each category by the value of that category b. divide the results of the multiplication c. multiply by the number of subjects
  44. math

    How do you multiply decimals If you look at the box up above that says jump, scroll down to the math section. If you select arithmetic you'll see a section on decimals there. That section has a subsection on multiplying them. when you multiply decimals you
  45. Math/Calculus

    Integrate: (2x^2+5)/((x^2+1)(x^2+4)) I came up with: (tan^-1)(x)-(1/2)((tan^-1)(2/x)) but it keeps coming back the wrong answer even though I integrated correctly. Is there a way to simplify this answer, and if so, how? Your answer is correct, but I think
  46. Chemistry

    .50 - x / x = 3.20e-1 I need to solve for x. I was going to do .50 X 3.20e-1 and then take the square root but this is not correct. I am not sure what to do. Thank you for your help. Math(Please help) - Reiny, Tuesday, April 17, 2012 at 3:18pm You probably
  47. Chemistry(Please check)

    .50 - x / x = 3.20e-1 I need to solve for x. I was going to do .50 X 3.20e-1 and then take the square root but this is not correct. I am not sure what to do. Thank you for your help. Math(Please help) - Reiny, Tuesday, April 17, 2012 at 3:18pm You probably
  48. math

    If r = square root 3V/pi*h , by what number must we multiply V in order to multiply r by 9 ? a. 3 b. 9/2 c. 9 d. 18 e. 81 please answer and explain
  49. pre algebra

    Is this how I would multiply? like if you have a whole number 3and 1/2yd multiplied by 4yd. Would I first multiply the 4x3 = 12 and 1/2? or no?
  50. Necessary Math HELp

    2x + y = -5 3x +5y = 3 How come I have to multiply by 5 to make the y variables cancel, like what does that mean? I don't get how ur supposed to multiply like where and how? Im really stuck right now, please help:(
  51. Algerbra 1

    1 15-4.10-14 2 9x-18=54 x= 3 Multiply 8/9(b-72) 4 Solve using the multiplication principle -10x=260 solution for x= 5 Multiply 3.(-5.(-3).(-10)=
  52. 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
  53. math

    start with 1, multiply by 2. then multiply the result by 3.then continue to alternate multiplying by 2 and by 3.what is the ones digit after the twelfth multiplication
  54. algebra

    Please help f(x) = 3x² + 2 x= 3 my question, do I start by solving x² first then multiply by 3 and adding 2 f(3= 3 * 9 + 2 = 29 or do I multiply first 3*3 =9² +2 = 83 I'm pretty sure we resolve the exponents first but need some help
  55. algebra

    Problem Two: 5/9 + (2/9)x = 25/7 + (6/7)x – 2/3 Multiply figures inside parentheses 5/9 + (1 x 2/9x) = 25/7 + (1 x 6/7x) – 2/3 Collect like signs 5/9 + 2/9(6/7x) = 25/7 + (-2/3) Multiply like signs 2 x 6 9 7 Reduce like numbers 2 x 2 = 4x 3 7 21x
  56. math

    Write the result in scientific notation. Multiply (8•10^3)(7•10^5) A.5.6•10^16 B.5.6•10^9 C.1.5•10^16 D.1.5•10^9 Is the answer A or B?? because 8•7=56 and you put a decimal between the five and six but if I add the exponents I get Eight and
  57. Algebra

    16. I am supposed to multiply the matrices B and C by each other B is: 7 6 2 -3 -1 8 9 5 and C: 0 8 -2 1 Would someone mind showing me how to multiply CB? Thanks ~Saria
  58. math

    Multiply (4ã6-12ã5)(2ã6+6ã5) Would the answer be 8ã64-72ã25 I donft think I am supposed to multiply the 4 and 6 or the 2 and 6
  59. Algebra 1

    I pretty much know this problem 4y+2x=18 3x+6y=26 multiply -3= -6x+-12y= -54 multiply 2 = 6x+-12= 52 The answer is -2 but I am not sure what to do next since both x and y were canceled out.
  60. arithmetic

    ok I don't know how to multiply 600x3/8 then subtract it. Could you please show me how. That math place doesnt realy help me. I get 1800/4800 right?? how do i break it down without it taking forever?
  61. math,help

    okay Directions: find the following squares. Problem: ((w)-(1)/(4))^2 I have no idea how to even start. First, FOIL the numerator and then square the denominator. Let me know what you get. (-1w^2)/(4w^2) is this what you mean? No :) Your numerator is w-1.
  62. Algebra

    When multiplying two numbers written in scientific notation what do you do with the exponents of the 10? A. multiply B. add C. subtract D. divide I think the answer is A. multiply. Is that correct?
  63. 3rd grade

    How can you use two multiplication facts to multiply 6 x 9? Use the array below to explain how you might multiply. ********* ********* ********* ********* ********* *********
  64. algebra

    When I multiply 6v^9*10v^7 I get 60v^16 My question is, do I add the 9+7 or multiply the 9*7?
  65. Math

    Multiply (1-5x³)² I am not sure If I add or multiply the exponents would this be solved as 1-5x^6?
  66. math

    well i need to ask how do you multiply a fraction? Multiply the numerators. Place the number on top. Multiply the denominators. Place the number on the bottom. Reduce the fraction if possible.
  67. math

    What would you need to multiply by in order to solve this system of equations using the linear combination (elimination) method? {6x−2y=4 7x+5y=3 Multiply the 1st equation by 3 and leave the 2nd equation alone. This will eliminate the y's when you add
  68. math

    Simply: (a) Four multiply by square root of seven open bracket two multiply by the square root of three plus three multiply by the square root of six minus the square root of seven close bracket. (b) open bracket three multiply by the square root of seven
  69. Math anxiety!!!

    Multiply and simplify by factoring. Assume that all expressions under radicals represent nonnegative numbers. ∛(y^13 ) ∛(¡¼16y¡½^14 ) Am I supposed to add the exponents and multiply the little 3's?
  70. Please help! MATH

    Multiply and simplify by factoring. Assume that all expressions under radicals represent nonnegative numbers. ∛(y^13 ) ∛(¡¼16y¡½^14 ) Am I supposed to add the exponents and multiply the little 3's?
  71. Math

    Multiply and simplify by factoring. Assume that all expressions under radicals represent nonnegative numbers. ∛(y^13 ) ∛(¡¼16y¡½^14 ) Am I supposed to add the exponents and multiply the little 3's?
  72. chemistry

    The problem si 209/83bi+64/28NI=272/111Rg+1/0n How to calculate the energy change in J/mol reactants? AMU amounts: Bi=208.980384 Ni= 63.927969 Rg=272.1535 What I have done is 1. subtract products from reactants. 2. multiply the result by 1.66054x10^-27kg
  73. Algebra

    Solve each literal equations for the indicated variable D = C - s/n ( for s) s/n = D - C Next, multiply both sides of the above equation by n, to get the equation for s. i don't understand could you type it how it looks This is an example Tammy If you have
  74. math,algebra

    Use the five properties of exponents to simplify each of the following expressions (y^5)^3(y^3)^2 divided by (y^4)^4 can someone show me how to solve these types of problems (y^5)^3= y^15 multiply the powers (y^3)^2=y^6 multiply the powers again as you
  75. Algebra

    Solving fractional equations 1) (1/x-3)+(1/x+3)=(10/x^2-9) 2) (5/2x)-(5/3(x+5)=(5/x) 3) (2x-1/x-1)-(3x/2x+1)=(x^2+11/2x^2-x-1) I just have a problem knowing what the lcd is. For the first one, i know I had to m,multiply the left side by x-3 and x+3, but it
  76. math

    If you multiply me by 2, I become a number greater than 20 and less than 40. If you multiply me by 6,I end in 8. If you multiply me by 4 I end in 2.
  77. 3rd grade math

    If you multiply me by 2, I become a number greater than 20 and less than 40. If you multiply me by 6, I end in 8 Multiply me by 4, I end in 2
  78. 3rd grade math

    if you multiply me by 2 I become a number greater than 20 and less than 40. if you multiply me by 6, i end in 8 if you multiply me by 4 i end in 2
  79. Math-Algebra

    1. What is the base of a triangle if its area is represented by 3z^2+ √5z mm^2 and its height is z − √3 mm? 2. What will happen to the area of a rectangle if you do the follo+wing? a. multiply the length by 2 and use the same width b. multiply the
  80. Math

    Explain how you can solve 8x8 if you know how to multiply with 4 but not how to multiply with 8.
  81. Math

    Multiply each expression. 6(h-4) I know you multiply the numbers 6*4 but where do you go from there? I am so frustrated
  82. math

    how do you multiply pi by 218? how do you multiply a decimal with a whole number?
  83. basic math

    say i have something like (2/3)-(1/3) ---------------- 3 do i multiply the top this way (1/3)(3/1) by flipping the denominator or multiply it like this (1/3)(1/3)
  84. Math

    Mary and Aperna worked together to mow a neighbor's lawn. They were paid $25.50. To split the money equally Mary wants to divide by 2. Aperna disagrees and says that we need to multiply. by how much do we need to multiply? explain. Please help i don'seem
  85. math

    1)I AM greater than 15 and less than 40 if you double me I become a number that ends in 0 1/5 of me is equal to 5 2) if you multiply me by 2 ,I become a number greater than 20 and less than 40 if you multiply me by 6,I end in 8 if you multiply me by 4 I
  86. math

    What help you. To find the product of 3-digit number and a 1-digit number you can multiply the ones multiply the tens multiply the hundreds and find the sum of each what
  87. maths algebra

    HI STEVE, THANKS for your reply back it was the wrong answer the one you worked, yes a hard question, here is an example of simultaneous questions. x-2/3 + y-1/4 =13/12 (1) 2-x/2 + 3+y/3 =11/6 (2) first step is to get rid of fractions. in equation (1) the
  88. Simple Algebra

    (2n+1)(2n-1)(n+5) I'm a little confused on how to do this one. Any help would be greatly appreciated!!! Thanks. Thank you!!! What are you trying to do? Multiply? The first terms will make a difference of squares (a-b)(a+b)=a^2 - b^2 (4n^2-1)(n+5) Now
  89. math

    Which answer describes the calculations that could be used to solve this problem? Bonita brought 3 bags of apples and 2 pounds of grapes to the picnic. Each bag of apples weighed 4 pounds. How many pounds of apples and grapes did Bonita bring to the
  90. intro cal

    the first 3 term of a geometric progression are k-4, 2k-4, 4k+4. what is the value of k? can someone help please! in any geometric progression any term divided by its previous term gives you the common ratio, so .... (2k-4)/(k-4) = (4k+4)/(2k-4)
  91. math

    kelly solved the following problem on her recent math test 121/11+4*8=120 the answer was marked wrong by your teacher and kelly is asking you to explain why she missed the promblem.whicthsolutions would you tell her A.divide 121 by 11,multipy 4 by 8 then
  92. PLEASE HELP!!computer science

    I'm trying to write a program for this piece wise function using CPU sim.its really argent... f(n) = n^5 (n0) i have worte this program bust still give error on cpu simulator.. please can you help me correct this error. Start: read 0 ; read n store 42 ;
  93. math

    explain and demonstrate how to change 4/20 into a percent there are two ways we can work this out 4/20 times by 5 overall to get it out of 100, becomes 20/100. or you can do 4/20 then times that by 10 or 20 x what = 100? 5, right? so multiply 4 x 5 and
  94. Maths

    you have to solve the following by finding the value of x and y. can u help please? x+3(x+1)=2x 1+3(x-1)=4 2x-2(x+1)=5x 2(3x-1)=3(x-1) 4(y-1)+3(y+2)=5(y-4) 3y+7+3(y-1)=2(2y+6) These are exercises in standard algebraic manipulation of equations. Basically,
  95. Math

    If you multiply a number by 3 and then add 40, the result is the same as if you first add 17 and then multiply by 2. What is the result if you subtract 9 from the number and then multiply by 4? A. -60 B. -72 C. -84 D. -108 E. -124
  96. math

    to write 116 2/3 as a fraction would I multiply the 116x 2/3? Multiply 116 x 3 and add the remaining 2/3 to get the answer in thirds. I hope this helps. Thanks for asking.
  97. math

    2/3 over 10 equals 1.8/r solve for r. (2/3)/10 = 1.8r. First, invert and multiply the denominator; i.e.,10. (2/3)*(1/10) = 1.8/r 2/30 = 1.8/r Now cross multiply. 2r = 30*1.8 2r = 54 Now divide both sides by 2 2r/2 = 54/2 r = 27 check my thinking. check my
  98. math

    How do I solve the equations using the elimination method: .3x-.2y=4 and .4x +.3y= 49/23 Normally I would multiply the decimals by 10 to make them whole numbers, but that fraction is really throwing me off. What do I multiply to eliminate that fraction?
  99. Math Uugghhh

    Okay the problem says I have to multiply (-2t)^2(3t^7)^2 SO what am I supposed to do, add the exponents then multiply -2t by 3t? Geez this is so confusing. If I square everything inside the first parentheses by 2 I get (4t^2) the second parentheses would
  100. math 117

    5/(x+6)+ 2/(x^2+7x+6)= 3/(x+1) Rewrite x^2 +7x +1 as (x+6)(x+1) Multiply both sides of the equation by that expression. You get 5(x+1) + 2 = 3(x+6) Multiply out the parentheses and combine similar terms. You will be left with a simple linear equation for

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