Pre-Calculus

21,887 results
  1. Pre-Calculus/Calculus

    I am too embarassed to ask this Calculus (really pre-calculus) question in tutoring, because I know I should know. Is the inverse of f(x)=3x-1 actually f(x)=1/3x+1? How do I find it? What if it asks the same equation replaced with f to the -1 power (x)? I
  2. Pre-Calculus

    I am in Honors Pre-Calculus and am having a hard time understanding my teacher. I feel so stupid. Does anyone have any suggestions on a website that might give me some insight into what I am doing wrong? Thanks!
  3. Pre Calculus

    Pre Calculus why is sin(-20)/cos 380 equal to tan (-200)
  4. Finite Math

    Fifty percent of students enrolled in calculus class have previously taken pre-calculus. Thirty percent of these students received an A for the calculus class, whereas twenty percent of the other students received an A for calculus. Find the probability
  5. Pre Calculus 12

    Im going over my pre calculus 12 exam, and I need help with one question from the chapter Transformations of graphs and stuff. Combining Transformations 2y = f(5x-10)+8 The original points are (4,6) and the new points I got by translating it and stuff are
  6. Pre-Calculus

    I'm trying to finish up my pre-cal homework and I am stuck on 2 problems... ***determine the intervals over which the function is increasing, decreasing, or constant*** 32. f(x)=x^2-4x 33. f(x)=√x^2-1 (that's square root of x^2-1) thank you so much
  7. Pre-Calculus

    I'm trying to finish up my pre-cal homework and I am stuck on 2 problems... ***determine the intervals over which the function is increasing, decreasing, or constant*** 32. f(x)=x^2-4x 33. f(x)=√x^2-1 (that's square root of x^2-1) thank you so much
  8. pre-ap pre calculus

    To solve an equation by finding x-intercepts, Cynthia graphed the function y=x^3-5x+|2x-3| Give several possibilities for the original equation. How do I do it and what's the answer? Thanks
  9. Pre-Calculus

    Can you show me how to find the rectangular equation: r=2cos(theta) + 3 sin (theta) All I need is an example to work off I was absent today from Pre-Calc and I have homework to do and no explanation with them-Please help with this one Thank you
  10. Pre-Calculus 12

    I am refering to the question posted on Tuesday, June 6, 2017 at 8:26pm. "how to graph y= (x^2-3x-10)/(x-2)" This is the reply I got: Pre-Calculus 12 - Damon, Tuesday, June 6, 2017 at 9:21pm (x-5)(x+2)/(x-2) well we know it is 0 at x = 5 and at x = -2 and
  11. Question

    @Alex asked this question when I was on earlier: Let line l_1 be the graph of 5x + 8y = -9. Line l_2 is perpendicular to line l_1 and passes through the point (10,10). If line l_2 is the graph of the equation y=mx +b, then find m+b. I'm wondering like how
  12. Pre-Calculus - Reiny

    Reiny you helped me with this logarithm yesterday: How did you write it out as log2 ( √A / B^3 ) Laws of logarithms combine, write as a single logarithm Need help on this question please, Im stuck, don't know where to go abouts from here: I did it on
  13. pre calc

    A math teacher uses four algebra books, two geometry books, and three pre-calculus books for reference. In how many ways can the teacher arrange the books on the shelf if books coiver the same subject matter are kept together?
  14. Math - Studying for Pre Calc exam!

    Approximate the solutions (to three decimal places) of the given equation in the interval (- pi/2, pi/2) 6 sin 2x − 8 cos x + 9 sin x = 6 Can you help with this please? I am studying for my Pre Calculus 1 exam and am stuck on this question...! The
  15. Pre-Calculus

    3x^2 + 8 = -4
  16. pre calculus

    27^8x-3=(1/81)^8x-4 x=?
  17. pre-calculus

    what is the F-^1 of 6/x+4
  18. pre calculus

    x^2-3x-7=0
  19. pre calculus

    (m+3)+5
  20. pre calculus

    x^2-3/4x+1/8=0
  21. pre-calculus

    3(4^x)-2^(x+2) = -1
  22. pre-calculus

    x^3e^x - 4e^x =0
  23. pre calculus

    C=2 x^=8y
  24. pre calculus

    2k^2+5k-9=0
  25. pre-calculus

    (2^(4+pi))/ 2^(1+pi)
  26. pre calculus

    2k^2+5k-9
  27. Pre-calculus

    2^(x)/(1-2^(x))=3
  28. PRE CALCULUS HELP PLEASE

    ((ln(x))^1/2)/(ln(x^1/2))=6
  29. pre calculus

    2n^1/3(n^2/3+n^-1/3)
  30. pre calculus

    -2< x < 5 - -
  31. Math, calculus, advanced functions, pre calculus

    An investments value, V(t) is modelled by the function V(t)=2500(1.15)^2, where t is the number of years after funds are invested A) find the instantaneous rate of change in the value of the investment at t=4, what intervals would you choose? Why? My
  32. pre - CALCULUS

    Let B = [-1 3 6 -3]. Find -4B. A. [-4 12 24 -12] B. [-3 1 4 -5] C. [4 -12 -24 12] D. [4 3 6 -3] b ?
  33. Pre-Calculus

    14cos+7=O
  34. Pre-Calculus

    What is the absolute value of: 3 - 8i? A. 9 B. 64 C. √55 D. √73
  35. Pre Calculus 1

    ln(3x-1) - ln(x+2) = 2ln5
  36. Pre-Calculus

    How do you factor x^3 - 64?
  37. Pre Calculus 1

    lnx + ln(x+3) = 2
  38. Pre-Calculus

    Given: u <-1, 7> and v <4, -3> Find: (u • v)(u + v)
  39. Pre-Calculus 12

    how to graph y= (x^2-3x-10)/(x-2)
  40. pre calculus

    find (a)2v+u, (b)u-3v, and (c)5u-v u=<0,-4>, v=<-2,-8>
  41. Pre Calculus

    Formula: a = b = c
  42. Pre Calculus

    Formula: a = b = c
  43. Pre calculus

    gfk
  44. pre-calculus

    What is the domain of (x+2)/(x-2)?
  45. pre calculus

    solve 2x + y = 8 4x + 2y = 16
  46. Pre-Calculus 12

    how to solve 3^(x-2) = 5^x
  47. pre calculus

    let f(x)= -x^2 - 1. evaluate f(x)at x=6, -6
  48. pre calculus

    find (a)2v+u, (b)u-3v), and (c)5u-v. 1.u=i-j, v=6i+9j 2.u=2i+3j, v=-i-2j
  49. pre calculus

    find (a)2v+u, (b)u-3v), and (c)5u-v u=<-2,-3> v=<-1,-10>
  50. Pre-Calculus

    How do I find xy^-2(xy^2 - 4y^4) ??
  51. pre calculus

    if y = bX, then its inverse is
  52. pre calculus

    what is the vertices of 7x^2+5y^2=35
  53. pre calculus

    what is the vertices of (x+1)^2/4+(y+2)^2/25=1 ?
  54. pre calculus

    2x^2+11x-21=0
  55. pre- calculus

    simplify 3x+2y/3y
  56. Pre-calculus

    Can someone help me with this equation: y = (2*10^(-44))*(e^(0.055x))?
  57. Pre calculus- help!

    find (gof)(x) when f(x) = √x+1 and g(x) = x^2+3/x
  58. pre-calculus

    Let f(x)=x^2+bx+27. Find the value(s) of b so that f(x) has minimum value of 2.
  59. Pre-Calculus

    is f(x)=9x^(5/3) a power function?
  60. Pre-Calculus

    For any two linear functions f(x)=ax+b and g(x)=cx+d, is f o g the same as g o f?
  61. Pre-Calculus

    given: ((x-2)^2/9)+((y-4^2/16)=1 what is the major axis?
  62. pre calculus

    Name 3 different representations of the following (-6, 3pi/4)
  63. Pre-calculus

    x-2/x2-1 This equation is a function or not?
  64. Pre-Calculus

    2secx= 3cscx
  65. pre-calculus

    Determine whether y is a function of x: x^2y-x^2+4y=0 Please help. Thanks.
  66. pre calculus

    Can you explain how to find (u • v)(u + v) when u <-1, 7> and v <4, -3>
  67. college pre-calculus

    if 1-1/x=2-2/x, then 3-3/x=? A. -3 B. -1/3 C. 0 D. 1/3 E. 3 idek how to do it?
  68. Pre-Calculus 12

    2x^3 - 13x^2 + 32x - 13 = 0
  69. Pre-calculus

    1) What is the equivalent of this? -5x(2x+7y)+7xy-4x(y+3)
  70. Pre-Calculus

    y= ((2-3x^(1/x))/(2+3x^(1/x)) Is the horizontal asymptote y= 1 or y= -1?
  71. Pre Calculus

    FACTOR COMPLETELY 1) x^8-y^8
  72. Pre-Calculus

    Find the value of the parameter: x = 3t y = t^2 + 5 t = 2
  73. pre calculus

    are you an online tutor
  74. Pre-Calculus

    How do I find the domain of K(x) = x(32 - 2x)^2?
  75. pre-calculus

    use gauss-jordan x+2y=5 2x+y=-2
  76. Pre-Calculus 12

    Solve using logarithm: 2^(4x+1)=3^x
  77. pre-calculus

    tan(1/2)cos^-1(9/10)
  78. Pre-Calculus

    What are the holes of the function f(x) = (x^2 + 3x - 4)/(x^2 + 9x + 20)?
  79. Pre-Calculus/Trigonometry

    For f(x)= 1/(x-5) and g(x)= x^2+2, find: a. (f o g)(x) b. (g o f)(6)
  80. pre calculus

    x^2+y ^2+ 4x + 6y - 12 = 0 how do i find the domain?
  81. Pre-Calculus

    find the inverse of g(x)=(x+7)^3+4
  82. pre calculus

    simplify sin(2 pi/3+x)
  83. pre-calculus

    6cos^2(x)-5cos(x)-6
  84. Pre calculus

    f(x)={ x+5, if x>0 3, if x<=0 Graph the function can someone please help
  85. Pre-Calculus

    Need help with the following along with all steps. Find y" for y = 3x + 4/x
  86. Pre-Calculus

    How to find domain of: y = -3 + ãx+6
  87. Pre-Calculus

    Reflect f(x)=x^2 about the y-axis. What changes?
  88. Math (pre calculus)

    ax+b/cx+d=2 solve for x
  89. Pre-Calculus/Trigonometry

    for f(x)= 1/(x^2-3), find: a. f(3) b.f(2+h)
  90. Pre-Calculus

    How do I find f(g(x)) when there is a radical?
  91. pre calculus

    how do you tell if a function is even or odd?
  92. Pre-Calculus

    Is the period of f(x) = 2cos(3x - ð) 2ð/3?
  93. Pre-Calculus/Trivia

    csc(theta)= 1/x sec(theta)= 1/ sqrt(1-x^2) cot(theta)= sqrt(1-x^2)/x What are these equations used for in real life matters or in regards to calculus? Can't seem to find the answer anywhere :/
  94. pre calculus

    How do you simplify cos ((pi)/2) - feta?
  95. pre calculus

    f(x)= a+tan(bx) fina a and b f(0)= 5 f(pi/8)=1/sq root of 3 +5
  96. Pre-Calculus/Trigonometry

    Help me please, just explain. How would I find f(1)? f(1)= x; -3, -2, -1, 0, 1, 2 f(x); 3.4, 0, -1.2, 0.4, 1.3, 1.7
  97. Pre-Calculus

    Find P + 1 if Pk = 7 + 13 + 19 + ...+[6(k - 1)+1] + (6k + 1) (the k+1 and k in front of the P are subscripts) A. 7 + 13 + 19 + …+[6(k - 1) + 1] + (6k + 1) + [6(k + 1) + 1] B. 8 + 14 + 20 + …+[7(k - 1) + 1] + (7k + 1) C. 7 + 13 + 19 + …+(6k + 1) D. 7
  98. pre - CALCULUS

    Find functions f and g so that h(x) = (f ∘ g)(x). h(x) = (6x - 14)8
  99. Pre-Calculus

    Evaluate. 1-|200+||-2|(-5)^3|| I get 49 as an answer
  100. Pre Calculus

    log(log10^10,000)