alg/trig

4,413 results, page 4

  1. alg.

    write your answer in standard form with integer coefficients. 2x+3y=30; (2,-5) i don't understand how to do this, im not quiet sure i know what its asking.
  2. Alg III

    Solve each absolute value equation. 3 + |x| = 5 My work: 3 + x = 5 or 3 + x = -5 x = 2 or x = -8 The book says that I am wrong. I do not know why.
  3. alg

    What is the value of the expression 2x^2 y /4xy when x = 2 and y = 1? a)1 b)2 c)3 d)4 Just need to know if my answer is right or wrong and i picked a
  4. Alg. I

    I've just begun to study Exponential functions: When you make a table starting with: -2 -4^x What are my coordinates? -1 0 1 2
  5. ALG 2

    What is the first term of a geometic series with a summation of 800, 4 terms and a common ratio of 3?
  6. Math-alg-calc

    x^(-1/7)=(1/2) Please help the example given was x^(-1/7)=(1/5) so that solved x=78,125. but i have no idea what to do thanks!
  7. college alg

    the function f(x)=6x+9/3x-7 find the inverse and check answer f^-1(x)=? please show work
  8. college alg

    the function f(x)=6x+9/3x-7 find the inverse and check answer f^-1(x)=? please show work
  9. Alg II Please HELP

    Determine the implied domain of the given function. Express in interval notation (-4x^(2)-3x)/(2)
  10. math ALG 2!

    Write the following value in scientific notation. 7,400,000 7.4x10^3? help?
  11. alg 2 check?

    1.)solve for n:-7n-21=-63 my answer: n=3 is this correct? please explain 2.)identify the x and y int for te equation 3x-4y=12.
  12. Alg

    describe the end behavior of the graph of the polynomial function. Then evaluate the fucntion for x=-4, -3, -2, -1, 0, 1, 2, 3, 4. I'm confused on this. Help.
  13. Alg 2

    How do you simplify this expression? It gets confusing b/c of logs and exponents. Can someone help me explain how to do this. 8^log(8)x
  14. trig

    FInd the exact value pf the 6 trig function of alpha Given: point (-2,-6) on the terminal side of the angle in standard position sin alpha cos alpha tan alpha sec alpha csc alpha cot alpha
  15. trig

    Write the expression and evaluate. There is only one answer whIch should match the range of the inverse trig function. Sec^-1(-2) Sec^-1(-sqrt2) Tan^-1(-sqrt3) Tan^-1(sqrt3)
  16. trig

    find each value by referring to the graphs of the trig functions. 1. sec 4 pi...i got 0 Find the values for theta for which each equation is true. csc (theta)=1 i got pi over 2 +2 pi n
  17. alg 2

    2 questions: 1. Find "a" if (-3,7) is a solution of 2x+ay=26 2. solve system using substitution, linear combination, and graphing: 3x-2y=3 5x+4y=16
  18. alg 2

    Write an exponential function whose graph passes through the given points. 1. (0, 3) and (1, 15) 2. (0, -5) and (-3, -135) 3. (0, -0.3) and (5, -9.6)
  19. Alg.2

    find all zeros of the function. f(x) = x^3-10x^2+33x-34 I found 2, using my calculator. What do i do after that?
  20. alg 2

    write an exponential function whose graph passes throught the given points... (0,3)and (1,15)...(0,-5)and(-3,-135)...(0,-0.3)and(5,-9.6)
  21. Alg I

    Find a pair of factors for each number by using the difference of two squares. 84 55 80 Please explain. Thanks
  22. Alg 1

    Operations with radical expressions: Simplify each quotient 7/sq rt 2 - sq rt 3 Please solve and explain how you did it. What do you do when the denominator is a negative?
  23. College Alg

    Use synthetic division and the Remainder Theorem to evaluate P(c). P(x) = 5x5 + 10x3 + x + 1, c = −2 p(-2)=
  24. ALG 2

    Determine the standard form of the equation of the line that passes through (-6,6) and (3,-2). My slope is -8/9 Y=mx+b -2=-8/9(3) + b SOLVING FOR b -2=-24/9 + b WHAT DO I DO NOW
  25. Trig/Pre-Calc

    Need help with current Trig problem for tomorrow: Solve the logarithmic equation algebraically. Approximate the result to three decimal places. 6log3(0.5x)=11 I know to start off the equation you divide by 6. I know the answer is 14.988. I just am puzzled on how to receive the...
  26. Alg III

    Solve each absolute value equation. |x - 3| = 1 Okay here is what I did: x - 3 = 1 x = 4 or x = -4 The book says {2,4} I'm very lost. Can someone help me?
  27. COLLEGE ALG

    use the transformations to identify the graph of the function. then determine its domain, range, and horizontal asymptote. f(x)=4+3^X/3
  28. college alg

    solve the following inequality x^2(8+x)(x-5)/ (x+5)(x-2)> or equal too 0 this looks like a fraction please show work
  29. ALG II

    Write each rational expression in simplest form and list the values of the variables for which the fraction is undefined. 1. x^2-7x+12/x^2+2x-15 2. 5y^2-20/y^2+4y+4 3. -7+7a/21a^2-21 4. 5(1-b)+15/b^2-16
  30. math (final trig problem)

    Solve for x on the interval [0,π/2): cos^3(2x) + 3cos^2(2x) + 3cos(2x) = 4 I havent done trig for a while so what exactly does that mean in solving for x on that interval and how would i go about doing that? Where are you getting these tough trig questions?? how about ...
  31. trig

    How do I prove these trig identities? secx-cosx/tanx =sinx And 1+sinx/cosx+ cox/ 1+sinx=2secx
  32. alg

    rationalize the denominator of the expression assume that all variables are positive ^3ã7/^3ã10 i cant get that sign on my pc its 2nd x2 on a graphing calc
  33. Alg 1

    I'm doing quadratic equations x^2 +bx+c =0.I'm supposed to factor each polynomial. I know how to questions like x^2 +8x +12 =0 but this one says, j^2-9jk-10k^2. I'm confused
  34. alg 2 first final study guide

    f (x) =2X^3 + 2x^2 - 3x + 2 please help me set up to find all the real number zeros of the function
  35. trig

    let P be a point in Q1 such that the slope of the line connecting P to the origin is sq. root of 2 and the distance from P to the origin is 3 units. Find the coordinates of P, state all trig values for angle formed by the line and the positive x-axis, and the measure of said ...
  36. trig

    If cos(t)=(-7/8) where pi<t<(3pi/2), find the values of the following trig functions. cos(2t)=? sin(2t)=? cos(t/2)=? sin(t/2)=?
  37. Alg2

    i am realy lost as to how to do this alg 2 problem: find the two real-number solutions of each equation: x^2=100 Can you please explain how to do it? Thanks!:)
  38. alg

    In a permutation a) the selections are independent b) some items will never be used c) the order matters d) there must be at least 3 things to choose from
  39. ALG 2!!!

    Write an equation of a line that passes through (9,-5) and (3,-5). Hint: To answer this question, first find the slope using these 2 points.
  40. alg 2

    Use the definitions and theorems of this section to evaluate and simplify the following expression. Be sure to express answers with positive exponents. (m . n)-1 =
  41. Math/Trig

    How would I evaluate these trig functions without using a calculator? U: sin(-13π/6) cot 11π/6 cot(-14π/4) sec 23π/6 Thanks in advance ^^; and if you'd tell me step by step on how to do problems like these I'd be grateful :D
  42. trig 30

    For csc^2 A-1/cot A csc A, what is the simplest equivalent trig expression? The answers I have to choose from are sin A, cosA, tan A or csc A, but I don't know how?? csc theta= 1/sin theta but its ^2. Help please I don't even no where to begin
  43. trig

    Write the expression and evaluate. There should only be one answer which should match the range of the inverse trig function. Sec^-1(-2) sec^-1(-sqrt2) Cos^-1((-sqrt3)/2) Tan^-1(-sqrt3) Could someone explain how to get the answer as well please.
  44. Trig

    Solve the trig equation exactly over the indicated interval. tanθ = 0, all real numbers I know the answer is πn, but I don't understand how they got this. I get that tanθ = 0 on π and 2π on the unit circle, so did they just put n on the end of π ...
  45. Math (Alg 2)

    The following expression represents the value of which variable in the solution of the system of equations below? |2 -1 1| |1 2 6| |3 -1 2| ___________ |2 -1 -2| |1 2 3| |3 -1 -1| 2X-Y+Z=-2 X+2Y+6Z=3 3X-Y+2Z=-1 A. Z B. Y C. X D. NONE OF THE VARIABLES ARE REPRESENTED
  46. college alg

    use the transformations to identify the graph of the function. then determine its domain, range, and horizontal asymptote. f(x)=4+3^X/3 please show work
  47. Alg 2 (HS)

    Solve 4^(x+2)= 160 use a cal and round your answer to the nearest hundredth How would I work out this problem? I'm a little confused with this one.
  48. math ALG 2!

    Find three consecutive integers such that the sum of the second and the third is 17. Which equation would be used to solve this word problem? a.) x + (x + 1) + (x + 2) = 17 b.)(x + 1) + (x + 2) = 17 c.)x + (x + 2) + (x + 4) = 17 d.) 2(x + 2) + 3(x + 4) = 17
  49. Math (alg 2)

    The ratio of two numbers is 3 to 2 and the difference of their squares is 20. Find the numbers.
  50. Math (alg 2)

    The ratio of two numbers is 3 to 2 and the difference of their squares is 20. Find the numbers.
  51. alg 2

    Can someone tell me how to factor 2a^2b - 16ab + 32b Should I factor 2b out of it?
  52. alg

    Divide: p^2 + 4p - 5 / p^2 + 7p + 10 * p + 4 / p - 1 a) p + 2 b) p + 2 / p + 4 c) p+4 / p+2 d)2 Just need to know if my answer is right or wrong and the answer i picked was c
  53. Alg 1

    The formula for the perimeter P of a rectangle is P=2l +2w. What is the result when correctly solving the formula for the variable w?
  54. Pre-Alg

    write a translation rule that maps point d(7 -3) onto point d'(2 5)
  55. pre alg.

    26 centimenters per sec. = _ meters per min.
  56. pre alg

    (-4)cubed divided by (-2)cubed -3(-5)squared I got -67 am i correct?
  57. Alg

    State the slope for a line parallel to the line – 5 and containing the point (–3, 7).
  58. Alg 2

    What is the sum of a 12-term arithmetic sequence where the last term is 13 and the common difference is -10?
  59. Math- Alg 2

    Which logarithmic equation is equivalent to the exponential equation below? 3^x=28
  60. alg

    Write an equation of a line whose graph is parallel to the graph of y = 3x – 10.
  61. Math-Alg

    2. Find the equation of the line which perpendicular to the line -2x + 3y = 32 and passes through the point (-4,-8).
  62. alg 2 review

    write the following absolute value expressions as piecewise expressions: y= abs(2x-4)
  63. Alg 2

    By what amount does the sum of the roots exceed the product of the roots of the equation (x-7)(x+3)=0? I have no idea what to do!
  64. alg

    change the logarithmic expression to an equivalent expression involving an exponent. 4^16=x log (base4)16=x is it x=e^2?
  65. math ALG 2!

    Write the following value in scientific notation. 23,000,000 i don't understand
  66. Alg !

    What is the sum of the first 4 terms of the arithmetic sequence in which the 6th term is 8 and the 10th term is 13?
  67. alg

    solve equation g+4/g-2=g-5/g-8 last one still don't get answer my teacher got was 14, however i got 22.. what was my mistake?
  68. alg 2

    given that one of the zeros of the funiction f(x)=x^3-8x^2+11x+20 is -1, find the sum of the other zeros. hwo do i do this?
  69. alg/geo

    m= 5/6, (8,-9) find the equation of the line having the given slope and containing the given point
  70. ALG 2

    What is the lat term, in a series of 10 terms with a common ratio of 2, a first term (a1) if 1 and a summation of 1023
  71. College Alg

    find the intervals on which the function is increasing or decreasing and find any relative minima or maxima. f(x)=0.2x^3-0.2x^2-5x-4
  72. college alg

    solve the following logarithm equation log (4x+7)=1+log(x-6) x=? please show work
  73. Alg. I

    (-5d^-5) (6d^2) -30d^-3 I know that d^-3 goes on the bottom to make it positive;however,does -30 go on the bottom as well? Please explain the rule(s) for this. Thanks
  74. Alg 3

    Put the following equations in standard form. State the center and the radius. x^2-5x+y^2+4y=-3 I get how to end up with (-2.5,2), what is the radius?
  75. Alg I

    when translating the verbal expression "five more than d" into an algebraic expression, is the answer 5+d or d+5? Aren't they the same?
  76. alg 1

    the perimeter of a rectangle is 24 m. the width is 30 m less than five times the length. find the dimentions of the rectangle.
  77. Alg 2 HELP!

    Identify the x-intercepts, local maximum, and local minimum of the graph of f(x)=x^3+2x^2-13x+10 I am confused on where to begin.
  78. alg 2.

    when condensing this expression why is the answer ln5. ln25-ln5
  79. alg

    simplify: 10^C6 a) 60 b) 210 c) 151,200 d) 1,000,000 c
  80. alg

    Which expression represents the sum of the following? 5 / 2t + 1 + -1 / 4t^2 + 4t + 1 a)10t + 4 / (2t + 1)^2 b) 4 / (2t + 1)^3 c)10t + 1 / (2t + 1)^2 d) 4 / 4t^2 + 6t + 2
  81. alg

    Which expression represents the sum of the following? (5)/ (2t + 1) + (-1) / (4t^2 + 4t + 1) a) 10t + 4 / (2t + 1)^2 b) 4 / (2t + 1)^3 c) 4 / 4t^2 + 6t + 2 d) 10t + 1 / (2t + 1)^2
  82. Alg 2.. HELP?

    Multiply or divide. 14. (x^5y5/3)2 16. (a^2b^2)(a1/3b1/4) 18. x2/3 divided by x1/3 20. z4/5 divide by z1/2
  83. Alg 2

    Find the lcd 14/4(x+1) , 7/4x I don't get it can you please explain step by step?
  84. Trig

    Can you please help with this trig question: The angle of elevation to the top of a nearby mountain is 46 degrees. After walking 1 km toward the mountain, you determine the angle of elevation to be 68 degrees. How high is the mountain? Thank you for all your help.
  85. Alg 2

    Can someone tell me how to factor 2a^2 - 16ab + 32b I just need someone to help me get started, and I want to see if I can finish it.
  86. alg 2

    a rectangle is to be inscribed in a isosceles triangle of height 8 and base 10. Find the greatest area of such rectangle.
  87. alg 2

    a rectangle is to be inscribed in a isosceles triangle of height 8 and base 10. Find the greatest area of such rectangle.
  88. alg 2

    a rectangle is to be inscribed in a isosceles triangle of height 8 and base 10. Find the greatest area of such rectangle.
  89. alg readiness

    "Express the mixed# as the addition of a whole # and fraction.Then find the value as a single fraction." *i don't understand what it is asking me?!
  90. Advanced Alg.

    I forgot how to look for the asymptote from an equation.. can someone please help me out? example: y= x/(x+1) what's the asymptote in this case? Thanks.
  91. college alg

    solve the following exponential equation. (e^x-e^-x)/2=6 what is the exact answer? x=? what is the answer approx to 3 decimal places? x=?
  92. college alg

    the function f(x)=6x+9/3x-7 is one to one. find its inverse and check your answer. f^-1(x)=? please show work
  93. Alg 1

    Solve the proportion: 4/x = (radical sign over 11, not -1) 11 - 1/3 Please solve and explain. My answer does not match any of my choices.
  94. Math - Alg

    How much water must be added to an 80% acid solution to make a mixture of 50mL which is 70% acid?
  95. trig

    if 10 students enter projects in the art show, how many different ways can they come in 1st, 2nd, and 3rd place? would you go 10^3 OR 10TIMES 3? This is not a trig question. Neither of those answers is correct. After making one of ten possible choices for first place, there ...
  96. math-alg

    8. In how many ways can 12 books be displayed on a shelf if 15 books are available?: * A. 455 B. 479001600 C 2.17945728 x 1011 2730
  97. math-alg

    8. In how many ways can 12 books be displayed on a shelf if 15 books are available?: * A. 455 B. 479001600 C. 2.17945728 x 1011 D. 2730
  98. alg 2.

    how would i condense this... 3lnxy-2ln2y. whenever i condense i get ln(xy^3/2y2). but my teacher has ln(x^3y/4). can someone please show me how to get that answer thanks!
  99. alg 2

    Provide an example of an arithmetic series which totals zero. Using complete sentences, explain how you created the example.
  100. college alg

    find the equation of a line that is perpendicular to line y=1/6x+6 and contains point (-7,0) y=? please show work so i can see how its done
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