1. pre-calculus

    find the derivative of y=(3x+1)^2 y= square root 13x^2-5x+8

    asked by gmp on May 30, 2011
  2. Calculus

    Any help would be much appreciated with the steps involved in each problem given. Thank you. 1) Find derivative if y =cot x + sin x 2) Find derivative if y = (3x+5)^8 3) Find derivative if y = x csc x 4) Find derivative if y = x ã3x + 1 (3x + 1 is under

    asked by Matt on September 30, 2007
  3. Chain Rule

    Any help would be much appreciated with the steps involved in each problem given. Thank you. 1) Find derivative if y =cot x + sin x 2) Find derivative if y = (3x+5)^8 3) Find derivative if y = x csc x 4) Find derivative if y = x ã3x + 1 (3x + 1 is under

    asked by Matt on September 26, 2007
  4. Calculus

    Any help would be much appreciated with the steps involved in each problem given. Thank you. 1) Find derivative if y =cot x + sin x 2) Find derivative if y = (3x+5)^8 3) Find derivative if y = x csc x 4) Find derivative if y = x /3x + 1 (3x + 1 is under a

    asked by Matt on September 30, 2007
  5. Math simplifying mixed radicals

    Please help me simplify these following mixed radicals:: and show me how you did it cause I need to learn : I don't know how to type a square root sign so I just wrote square root and the numbers infront of the square root are supposed to be multiplied. 2

    asked by Miley on September 14, 2013
  6. Calculus/Logarithms

    Find the derivative of f(x) = (square root of x)(ln x). Using my notes, I came up with f'(x) = (1/2*square root of x)/x The answer in the back of the book says f'(x) = (2+ln x)/(2*square root of x). Can someone please explain how? Thanks.

    asked by Amy on June 29, 2009
  7. algebra

    1.)correct 2.)wrong---> the first term is wrong 4(3a^2)^2 = 36a^4 3.) not sure on this one 4.) wrong---> - square root of six is not a solution Hope this Helps! 1)find p(-3)if p(x)=4x^3-5x^2+7x-10 =-184 2)If r(x)=4x^2-3x+7,find r(3a^2) =12a^4-9a^2+7

    asked by manny on August 16, 2007
  8. Math Help!

    Four students worked to find an estimate for square root 22. Who is closest to finding the true estimate? A. Tiffany: "Use square root 16 and square root 25 to estimate." B. Todd: "I use square root 9 and square root 16." C. Trenton: "It should be square

    asked by Laura Ashley on November 3, 2014
  9. Algebra

    Hello all - I would like to check my work on 2 problems. Solve by factoring : x^2-13x= -12 x^2-13x+12= -12 + 12 x^2-13x+12= 0 (x-1)(x-12)= 0 x = 1 , 12 Solve using the square root property: 2x^2-35=15 2x^2-35-15=0 2x^2-50=0 2(x-5)(x+5)=0 x = 5 , -5 Not

    asked by John on November 12, 2007
  10. College Algebra help please

    I need some help with a handful of questions. I need to see the steps on how to get to the final answers. I would also appreciate if you can explain how you got to those steps. Rationalize each expression by building perfect nth root factors for each

    asked by Krissy on January 20, 2013
  11. College Algebra

    I need some help with a handful of questions. I need to see the steps on how to get to the final answers. I would also appreciate if you can explain how you got to those steps. Rationalize each expression by building perfect nth root factors for each

    asked by Krissy on January 21, 2013
  12. College Algebra

    I need some help with a handful of questions. I need to see the steps on how to get to the final answers. I would also appreciate if you can explain how you got to those steps. Rationalize each expression by building perfect nth root factors for each

    asked by Krissy on January 19, 2013
  13. math

    Four students work to find an estimate for square root 37. Who is closest to finding the true estimate? (1 point) Rhonda: "Use square root 16 and square root 25 to estimate." Ricardo: it should be between square root 25 and square root 36." Riley: "i use

    asked by lily on November 2, 2016
  14. Math

    Just need some help... Directions: Multiply or raise to the power as indicated... Then simplify the result. Assume all variables represent positive numbers. 1. 5(square root of 6) times two-thirds(square root of 15)= 3 one-third (square root of 90)= (This

    asked by Anonymous on March 25, 2008
  15. Math PLEASE HELP ASAP

    -PLEASE INCLUDE SOLUTIONS AND EXPLAIN HOW YOU DID IT PLEASE. *CHALLENGE. 1.SIMPLIFY : SQUARE ROOT OF 16^8+8^4/16^2+16^7 2.EXPRESS 1 + 1/1+SQUARE ROOT OF 2 - 1/1-SQUARE ROOT OF 2 IN THE FORM A+B SQUARE ROOT OF 2, WHERE A AND BARE RATIONAL NUMBERS. FIND A +

    asked by Aliza on December 10, 2012
  16. Calculus

    find derivitive of 1/square root of x 1/square root of x = x^(-1/2) The derivative is -1/2 x^(-3/2) can you keep going on the problem to not have negative exponents? You can also use that the derivative of 1/f(x) is given by: -f'(x)/[f(x)]^2 If you take

    asked by Linds on January 18, 2007
  17. Math

    Four students work to find an estimate for square root 27. Who is closest to finding the true estimate? (1 point) Chelsey: "Use square root 16 and square root 25 to estimate." Carley: "I use square root 25 and square root 36." Jamie: "It should be between

    asked by Philisnotonfire on November 4, 2016
  18. math

    Four students work to find an estimate for square root 54. Who is closest to finding the true estimate? (1 point) Rhonda: "Use square root 16 and square root 25 to estimate." Ricardo: "I use square root 25 and square root 36." Riley: "It should be between

    asked by lily on November 2, 2016
  19. Math

    Solve the following equation. 4.7 = 1.13x^2 Do i square root the 1.13x^2 first? or divide both sides by 1.13?

    asked by Jack on August 28, 2010
  20. Algebra

    Rationalize each expression by building perfect nth root factors for each denominator. Assume all variables represent positive quantities. I don’t understand how to compute these. Also I don’t have the square root sign so I typed it out where it would

    asked by Becca on January 18, 2013
  21. Math

    What are the solution sets of the following 3 problems,the square root of x squared + 3x = x-3, the square root of 3x + 10 = x + 4 and finally the square root of 8x - 2 = the square root of 2x? Help much appriciated. I will one as an example. sqrt(3x + 10)

    asked by Joseph B. on January 13, 2007
  22. Calculus I

    Find the derivative ** (sq root) y = (square root) x + (2nd sq root) x + (3rd sq root) x ** All the x's is under three sq roots y' = 1/2(sq rt) x + 1/(sq rt) x + 3/2(sq rt) x Is this right?

    asked by Priscilla on April 10, 2012
  23. Math simplifying mixed radicals

    Please help me simplify these following mixed radicals:: and show me how you did it cause I need to learn : I don't know how to type a square root sign so I just wrote square root: 2 square root 48 3 square root 81 6 square root 12 3 square root 32 2

    asked by Miley on September 14, 2013
  24. math

    How do you find the derivative of square root of five /t^5? how do you find the derivative of square root of five /t^5 I know that f=a t^-n f'= -an t^(-n-1) and i tried putting -25/{[2sqrt(5/t^5)]/(t^4)}

    asked by Jin on August 20, 2010
  25. 7th grade math Ms. Sue please

    2. Shelly sews a blanket that has an area of 170 square feet. It has 30 square blocks, each the same size. What is the approximate length of each side of a block? (1 point) 1 foot 2 feet 3 feet 4 feet 3. Which of these numbers can be classified as

    asked by Delilah on October 24, 2012
  26. algebra

    1)Write the expression 9n^6+7n^3-6 in quadratic form,if possible A.9(n^3)^3+7n^3-6 B.9(n^2)^3+7(n^2)-6 C.9(n^3)^2+7(n^3)-6 D.not possible I'm thinking C on this one but im not sure 2)solve b^4+2b^2-24=0 A.-2,-square root of 6,square root of 6,2 B.-square

    asked by Marissa on August 18, 2007
  27. math, calculus

    find the derivative of the function y= integral from square root of x, to x cubed of (square root t * sin(t))dt

    asked by Nicole on November 27, 2006
  28. Math

    Find the derivative: y = square root of x(x+14). The square root is only on the x. Please show work and explain. I don't know how to do this. Thanks!

    asked by JJ on March 29, 2012
  29. Algebra

    1.) Which of the following numbers could be added to 3/16 to make a sum greater than 1/2? 5/16 10/32 2/6 1/4 Which of the following pairs of numbers provides the best estimate of (square root of 45)? (square root of 25) and (square root of 36 (square root

    asked by katy on January 3, 2019
  30. Math ~CHECK MY ANSWER~

    1) Which of these is a rational number? a. Pi b. Square root 3 ****** c. Square root 2 d. 1.3 (the # 3 has a line at the top) 2) Which of the following sets contains 3 irrational numbers? a. Square root 120 , n , Square root 3 ****** b. - Square root 256 ,

    asked by Wendy on February 10, 2014
  31. math

    1) Which of these is a rational number? a. Pi b. Square root 3 ****** c. Square root 2 d. 1.3 (the # 3 has a line at the top) 2) Which of the following sets contains 3 irrational numbers? a. Square root 120 , n , Square root 3 ****** b. - Square root 256 ,

    asked by jai on April 29, 2016
  32. Calculus

    A rectangle is bounded by the x axis and the semicircle = square root 25-x^2. What length and width should the rectangle have so that its area is a maximum? When I worked the problem out(which is a bit detailed). I started with y = square root 25-x^2 then

    asked by LittlePanda on June 6, 2015
  33. Algebra 2

    could you walk me thorugh these problems simplfy square root 18 - 3 times sqaure root of 50 plus 5 times the square root of 80 - 2 times the square root of 125 I'm having troubles with the square root of 80 all of the other radicals can be simplfified with

    asked by Kim on May 31, 2009
  34. Math ~CHECK MY ANSWERS~

    1) Which of these is a rational number? a. Pi b. square root 3 ****** c. square root 2 d. 1.3 (the # 3 has a line at the top) 2) Which of the following sets contains 3 irrational numbers? A. square root 120, n, square root 3 ****** b. - square root 256,

    asked by Jenny on February 12, 2014
  35. math

    Find the derivative of the function. q = square root of 18r-r^5 q = all this under square root

    asked by monica on July 4, 2010
  36. ALGEBRA

    1, Factor each expression x^2 - 10x - 24 A. (x + 4)(x - 6) B. (x + 6)(x - 4) C. (x + 2)(x - 12) D. (x + 12)(x - 2) 2, x^2 - 36 = 0 A. (1 + square root of 3, 1 - square root of 3) B. (-6,6) C. No solution D. None of these 3, Factor each expression 49 x^9 -

    asked by STUCK on December 11, 2007
  37. Alegbra 2

    Use the rational root theorem to list all possible rational roots for the equation. X^3+2x-9=0. Use the rational root theorem to list all possible rational roots for the equation. 3X^3+9x-6=0. A polynomial function P(x) with rational coefficients has the

    asked by Chelsey on January 26, 2018
  38. Algebra

    Use the quadratic formula to solve the equation. Give exact answers: 2x^2 -1 = 6x. The choices are: a) -3 + square root(7)/2, -3 - square root(7)/2 b) 3 + square root(11)/2, 3 - square root(11)/2 c) 3 + square root(7)/2, 3 - square root(7)/2 d) -3 + square

    asked by Hope on June 3, 2009
  39. Algebra

    When you're breaking down the square root in the quadratic formula into several parts- say it was the originally the square root of 80 so you break it down to square root of 4 and square root of 20-would the results be added or multiplyed? Because I know

    asked by Peter on October 5, 2009
  40. Math

    What is the square root of 12? 3.464 Well, that's true, but you could simplify it in radicals. The square root of 12 is the same as saying the square root of 3 times the square root of 4. The square root of 4 is plus or minus 2, so you could say (I wish I

    asked by Mary on March 21, 2007
  41. Math

    Rationalize the denominator. Assume that all expressions under radicals represent positive numbers. The square root of 3y^4 to the third root divided by the square root of 15x^4 to the third root. Here is what I have so far: I multiplied. The square root

    asked by B.B. on May 21, 2010
  42. Algebra

    I am supposed to "write each expression with a rational denominator" 1/thesqrootof 3. I follow the book's explanation, until it suggests dividing the sq. root of 3 by the square root of 3 times the square root of three. I do not understand how that reduces

    asked by Juliette on December 10, 2008
  43. math

    What does it mean to have the sqaure root of 5 with a 2 in front of it? How do you figure it out? 2 sqrt 5 is two times the square root of 5. It depends where the 2 is placed wrt the square root symbol. If it is on the same line as the square root symbol,

    asked by Cookie on April 9, 2007
  44. Algebra

    Hello Reiny, please check these problems for me and if they are not right WOULD YOU PLEASE HELP ME WITH THE CORRECT ONES THANKS!!! 1. Slove for X, wher X is the real number, square root 5x + 9= square root 9x + 13= 27 2. Find the value: ^3 square root -27=

    asked by lee on October 31, 2010
  45. algebra

    could someone please check these roblems for me and if they are not rightWOULD YOU PLEASE HELP E WITH THE CORRECT ONES THANKS!!! 1. Slove for X, wher X is the real number, square root 5x + 9= square root 9x + 13= 27 2. Find the value: ^3 square root -27= 9

    asked by lee on October 31, 2010
  46. Algebra

    Can you pleas Solve the quadric equation step by step 4x square =13x+2 4x^2 = 13x + 2 subtract 13x and 2 from both sides 4x^2 - 13x - 2 = 0 Now use the quadratic formula, since it does not factor.

    asked by Tony on April 11, 2007
  47. calculus

    Please help with this. I submitted it below but no one responded. I need the first derivative of f(x)=4(x+ then the square root to include (x(8-x)), then close bracket.And then the second derivative of this to show by the second derivative test that it is

    asked by Frank on March 1, 2011
  48. math

    Please help I'm so confused!!!! 1. Which two square roots are used to estimate the square root of 5? a. square root of 1 and 2 b. square root of 2 and 4 c. square root 4 and 9 d. square root of 9 and 16 2.Which two square roots are used to estimate square

    asked by :) on October 29, 2014
  49. algebra

    Which shows the expressions in the order they would appear on a number line from least to greatest? 17 over 9, square root of 6, square root of 15, square root of 30, 3 to the power of 3 3 to the power of 3, square root of 30, square root of 15, square

    asked by CHRISTIAN on October 7, 2015
  50. Algebra

    69: 16x^2+8x-3. I inserted this into the quadratic formula and got -8+/- the square root of (8^2-4(16)(-3)/(2 times 16). This reduced to -8+/- the square root of (64+120)/32, which further reduced to -8+/-the square root of 184/32. I reduced the top part

    asked by Britt on October 4, 2009
  51. calculus

    6. What is the derivative of y = square root of 3x ? a.dy/dx = square root of 3x/6x b.dy/dx = square root of 3x/2x c.dy/dx = 2 times the square root of 3x / 3x d.dy/dx = square root of 3x/2 okay i know the answer might not be there but which one do you

    asked by Anonymous on February 6, 2011
  52. Math

    1. Rosa, Roberto, Andrea, and Inno find an estimate for square root 10. Who has proposed the best solution? (1 point) Rosa: "Use square root 9 and square root 25 to estimate." Roberto: "I will use square root 4 and square root 9." Andrea: "It should be

    asked by anonymous on December 1, 2013
  53. Some Please Help me - PreCalc

    Verify that the point ( square root(31)/7, -3square root(2)/7 ) lies on the graph of the unit circle. If it does, use symmetry to find three other points that also lie on the graph of the unit circle. (direction - Type ordered pairs). PS: The -3 is outside

    asked by chizoba on July 24, 2016
  54. Math

    Could someone please help me with this math problem? This is what I have so far but now I am stumped as to what to do next. Multiply and simplify by factoring. The square root of 18 * square root of 40. The square root of 18= the square root of 9*2. The

    asked by B.B. on May 21, 2010
  55. calculus

    find Arc Length of (9-x^(2/3))^(3/2) I square the second derivative and have it under the square root but then get stuck at (-9x^-1)+x^(-1/3)+1 Help?

    asked by ConfusedEngineer on October 28, 2013
  56. Algebra

    Put in order from smallest to largest 12 6 square root 5 20 9 square root 6 16 square root 7 5 -48 11 8 - square root 3 -60 5/6 2 square root 5/5 - square root 3 +2/5 The square root us confusing my son. Thanks so much

    asked by Mom on March 24, 2016
  57. Tirginometry

    the expression 4ab(square root of)2b-3a(square root of)18b^3+7ab(square root of)6b is equivalent to... (a)2ab(square root of)6b (b)16ab(square root of)2b (c)-5ab+7ab(square root of)6b (d)-5ab(square root of)2b+7ab(square root of)6b Please help its due

    asked by William on January 1, 2010
  58. MATH

    Which expression is a polynomial???? A: 11 0ver the square root of x B: square root of 11 times x C: x - square root 11 D: 11 over the square root of x to the 2nd power (sorry I am not sure how to insert square root symbols or fractions, so u have to

    asked by Amber on April 6, 2014
  59. Algebra I

    Son brought home a hand made worksheet that teacher did not go over and can't find examples anywhere. Multiply each expression by its conjugate. A. Square root of (13)-2 B. 2+3Square root (5) C. Square root(3) minus Square root(7) Thanks

    asked by Mom on March 15, 2016
  60. calculus

    Is this the correct answers for these questions Verify the means value theorem holds on the interval shown. Then, find the value c such that f'(c)=(f(b)-f(a))/(b-a) b.f(x)=x^3=x-4 on [-2,3] c= square root 7/3 c. f(x)= x^3 on [-1,2] c= square root 1 d.

    asked by Angela on January 8, 2017
  61. Math Answer Check

    P is a point on the terminal side of θ in standard position. Find the exact value of the six trigonometric functions for θ. P(-8, -8) Ans: cotangent: 1 secant: negative square root 2 cosecant: negative square root 2 sin: square root 2 / 2 cosine: square

    asked by Anonymous on March 18, 2015
  62. Algebra

    4x^4-13x^2+9=0 2x-square root of x-1=0 3/x+4/(x+1)=2

    asked by Alicia on July 17, 2010
  63. MATH

    1. Rosa, Roberto, Andrea, and Inno find an estimate for square root 10. Who has proposed the best solution? (1 point) Rosa: "Use square root 9 and square root 25 to estimate." Roberto: "I will use square root 4 and square root 9." Andrea: "It should be

    asked by Shalee ^~^ on October 22, 2015
  64. math

    Say if these numbers make a right triangle and a Pythagorean triple: 2, 2 square root 2, and 2 square root 3. I am confident that the answer for both parts of the question is no, because when 2 is squared and when 2 square root 2 is squared it is larger

    asked by Erin on April 4, 2015
  65. Math

    I can not find the solutions to the following problems using 2 methods: algebraically and geometrically. 1. X with the square root of 2 =9 2. X with the square root of 3 =27 3. X with the square root of 4 =27 --Note: Fourth root I'm not sure what you mean

    asked by Doris on September 28, 2006
  66. math

    The derivative of f(x)=square root of {x} with respect to x is given by f'(x)={1}/square root of {x}.it is true or false?

    asked by Derivative on May 25, 2011
  67. math

    1. Rosa, Roberto, Andrea, and Inno find an estimate for the square root of 10. Who has proposed the best solution? a. Rosa: "Use the sqaure root of 9 and the square root of 25 to estimate." b. Roberto: "I will use the square root of 4 and the sqaure root

    asked by steve on September 25, 2012
  68. math

    how do you find the derivative of square root of x

    asked by Jin on August 19, 2010
  69. math

    how do you find the derivative of square root of 5 /t^5

    asked by Jin on August 20, 2010
  70. algerbra

    could you please double check my work question:find the roots of the equation 2x^2+8x=12 by completing the square. leave answer in simplest radical form. work and answer: c=(b/2)^2 c(4/2)^2=4 2x^2 +8x=12 divide everything by 2 x^2 + 4x=6 x^2+4x+4=10

    asked by Liz on April 22, 2017
  71. Calculus

    square root of (12), square root of (12 + square root of (12)), square root of (12+ square root of (12+ square root of (12))) Write a recursion formaula for an(subcription), n greater than or equal to 2.

    asked by Ashley on March 7, 2013
  72. Calculus AB

    Please help me with this WS 1) Find the value of lim as x-->-(square root of 3) of (-x^4 + 5x^2 -6)/(x+(square root of 3) 2) Find the distance between the discontinuities of g(x)= ((square root of x-4))/(x^2 -5x -1) 3)Find the value of x at which the curve

    asked by Annie on November 30, 2016
  73. calc

    derivative of (x^3/6)+(1/2x)? i got (x^2/2)-(1/2x^2) is that correct? and then wut is the (F'(x))2?...meaning the derivative squred? if you meant (1/2)x^2 - 1/(2x^2) you are correct I don't think they are looking for the square of the derivative, but

    asked by MARY on May 6, 2007
  74. Math radical equations

    Please show me how to do these step by step because I have a test tomorow and I need to understand how to do these questions : 1. M-1 under the square root sign +5= m-2 2. 3n+10 under the square root = n+4 3. K-9 under the square root - (k under square

    asked by Grey on October 7, 2014
  75. math

    Find the derivative of the function. y = (x^2+8x+3)/square root of x

    asked by david on July 4, 2010
  76. calc

    find derivative d/dt of sec * square root of t

    asked by Meera on December 9, 2012
  77. Applied Calculus

    Find the third derivative of the function: g(t)=square root of 7t+5

    asked by Jacob on February 27, 2013
  78. Applied Calculus

    Find the third derivative of the function: g(t)=square root of 7t+5

    asked by Jacob on February 27, 2013
  79. math

    Find the derivative of the function. y = (x^2+8x+3)/(square root of x)

    asked by monica on July 4, 2010
  80. Calculus

    Find the derivative of the function y=x2 + 2x + 1/ square root of x2 + 2x -1

    asked by Pearl on September 26, 2011
  81. 7th grade math Ms. Sue ASAP please

    Ms. Sue, sorry to keep bugging you with questions, but can you please check my answers? Sorry, I just want to get my answers correct when i turn it in thanks! 8. Four students work to find an estimate for square root 37. Who is closest to finding the true

    asked by Delilah on October 24, 2012
  82. algebra

    Find an equation for a line that has a slope of -13 and contains (-7, 2) Answer choices 1. y = -13x - 89 2. y = 13x + 93 3. y = -13x + 19 4. y = 13x - 33

    asked by Joe on March 10, 2018
  83. pre-algebra

    Which two square roots are used to estimate Start Root 8 End Root? A. Square Root 2 and Square Root 3 B. Square Root 3 and Square Root 4*** C. Square Root 4 and Square Root 9 D. Square Root 9 and Square Root 16

    asked by BleakTuber on December 7, 2018
  84. Math HELP!

    Rosa, Roberto, Andrea, and Inno find an estimate for square root 10. Who has proposed the best solution? A. Rosa: "Use square root 9 and square root 25 to estimate." B. Roberto: "I will use square root 4 and square root 9." C. Andrea: "It should be square

    asked by Anonymous on October 21, 2014
  85. calculus

    how do I find the derivative of f(x)= 4/ square root of x ? using the limit process?

    asked by Terry on June 5, 2011
  86. Math(Please check)

    Find the derivative of f(x)=1/3 sqrt x. The 3 is little above the square root. I know that it is -1/3x^-4/3. Can this be written as -1/3x^4/3 ?

    asked by Hannah on January 30, 2011
  87. calc

    logarithmic differentiation of find derivative of y= square root of x^x

    asked by jackie on November 15, 2009
  88. Pre- Algebra

    State if each number is Rational,Irrational,or not a real number? 1.)square root of 9/16 2.) square root of -9 3.)square root of -16 divided by -4 4.)square root of -8(-2) 5.)square root of 25 divided by 8 6.)square root of -1/4 Please Help! I have been

    asked by Kay on December 9, 2015
  89. Math Help!

    Which two square roots are used to estimate square root 67? A. Square root 36 and Square root 49. B. Square root 49 and Square root 64. C. Square root 64 and Square root 81. D. Square root 81 and Square root 100. Is the answer C? Thanks

    asked by Laura Ashley on November 3, 2014
  90. Math

    Use the definition of the derivative to show that if f(x)= square root of x, then f(x)= 1/2(square-root x)

    asked by Paul on February 15, 2013
  91. Calculus

    How do i find the derivative of f(t)= 20- 30/rooot 9 + t^2 heres how i did it f'(x)= 20' - 30/root(9+t^2) ' = 0 - 30/root(9+t^2) ' (Quotient rule) f'(x)= 30' (root(9+t^2) - 30(root(9+t^2) ' f'(x)= -30(0.5(9+t^2)^-0.5) (2t) the answer at the back of the

    asked by LALA on February 27, 2010
  92. Math

    i^6 = (i^2)^3 = (-1)^3 = -1 The square, not the square root of -1 is 1. :) B.t.w., can you prove that -1 times -1 is 1? Hint, try to prove first that for any number X: -1 times X equals -X How do you find the square root of -1? The square of any real

    asked by Count Iblis on November 15, 2006
  93. Algebra Word problem

    I don't know how to put in a square root symbol here so know that it is over h. The equation D=1.2 square root h gives the distance D in miles that a person can see to the horizon from a height h in feet. Solve for h. Do I find the square root of 1.2?

    asked by Marysvoice on January 29, 2008
  94. math

    2.)If f(x)=3x,g(x)=x-3,and h(x)= the square root of x, find (fogox)(X). I really didn't get this will someone please show me how to do it? This I what I did to solve for it: 3(x-3) 3(he square root of 25-3 3(5-3) 15-9=6 Ok here is another way I solved for

    asked by Leo on April 6, 2013
  95. math

    2.)If f(x)=3x,g(x)=x-3,and h(x)= the square root of x, find (fogox)(X). I really didn't get this will someone please show me how to do it? This I what I did to solve for it: 3(x-3) 3(he square root of 25-3 3(5-3) 15-9=6 Ok here is another way I solved for

    asked by Leo on April 6, 2013
  96. calculus

    how can I determine the domain of a function h(x): integrate from 0 to 2x-1 f(t)dt, when the f(x) function is a graph shown and equations for both semicircles in the graph are: square root of 4x-x(squared) and for the second one -square

    asked by alex on March 9, 2011
  97. Math

    simplify the expression (4 square root of x)/(6-square root of x) I need help with this. I've worked it out to the point where i got (2 square root of x)/(3-square root of x), but I'm pretty sure that it can be simplified further. If what I'm thinking is

    asked by David on August 25, 2015
  98. Math

    simplify the expression (4 square root of x)/(6-square root of x) I need help with this. I've worked it out to the point where i got (2 square root of x)/(3-square root of x), but I'm pretty sure that it can be simplified further. If what I'm thinking is

    asked by David on August 25, 2015
  99. Pre-Calculus

    Solve 0 = 3x^2 + 5x -1 by completing the square. Express your answer as exact roots. 3(x^2 + 5/3 + 25/36) = -1 (x+ 5/6)^2 = 37/36 sq root( x + 5/6)^2 = sq root (37/36) x + 5/6 = +- sq root 37/6 x = -5/6 +- square root 37 /6

    asked by Lucina on March 26, 2015
  100. derivative of y

    how to find derivative of y: y = sin inverse(square root of 2t) I got this. Please ignore.

    asked by Jen on October 18, 2006

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