Trig check my work please?

90,347 results, page 34

  1. Math 116 algebra please check

    Solve by elimination method 2x + 3y =1 4x + 6y =2 What is the solution of the system N there is no solution
  2. Math check please

    Solve w= (va)/(r^2+a^2) for a. I applied the quadratic formula a= (v/w +- sqrt (v^2/w^2 - 4*(-wr^2)) /2 and I have the answer as a= (v+/- sqrt[v^2+4w^2r^2]/w
  3. *Science-Check*-Help

    Can someone please have a moment to look at my other previous science posts, thanks :-)
  4. Math(Please Check)

    in which one quadrant is the cosecant negative and the secant positive. Quadrant 4. Is this correct?
  5. algebra

    What is the volume of a box whose length is 12-2x, width is 7-2x, and height is x. l*w*=height 12*7=84 2x=84 x=42 Is this right, check for me please
  6. algebra

    The problem is factoring completely 4xX^2-20x-24 4(X^2-5x-60 4(x-6)(x+1) 12x^2-75 3(X^2-25)=3(X-25)(x+3) Can someone check these problem for me please.
  7. Algebra, ( Check please)

    5h-7=2(h+1) I got, 5h-7=2h+1 and then I added -7 plus 1, and got -6 So 5h-6=2h? Could someone explain what I did wrong and help me correct it?
  8. Chemistry(Please check)

    (0.80M)(5.00mL) = c2 (75.00mL) c2 = 5.33e-2 M Is the correct amount of sig figs?
  9. Art

    Can you please check these two sentences? Thank you. 1) Why did the doctor prescribe Coleridge opium? What did Coleridge suffer from?
  10. AP calculus

    ∫[0,x^(3),(t)/√(1+t^(3)),] Find the derivative of the integral. A. (3(x^3))/((1+(x^9))^0.5) B. (x^3)/((1+x^9)^0.5) C. (3x^3)/((1+x^3)^0.5) D. (5x^3)/((1+x^6)^0.5) E. (3x^5)/((1+x^3)^0.5) I think the answer is A. Can you check my answer please?
  11. Math! Please check!

    The complement of an angle measures 37°. What is the measure of the angle? A- 143° B- 127° C- 63° D- 53° My choice is C.
  12. Math

    Can someone please check these problems? Thank you! Solve each equation for the indicated value. 1. a-b=-c, for a I got a=-c+b 2. 4y+6x=12, for y I got y=-3/2x+3
  13. Math

    Find the slope of a line that is parallel to the line ontaining the points (3, 4) and 2, 6) A. m= 2 B. m= -2 C. m= -1/2 D. m= -1 I say it's C or A Please check
  14. Math

    Find the slope of a line that is parallel to the line ontaining the points (3, 4) and 2, 6) A. m= 2 B. m= -2 C. m= -1/2 D. m= -1 I say it's C Please check
  15. Math

    what is 10 thirds in standard form? A.10 B.100 (my answer) C.1,000 D.1,0000 Please check my answer!!
  16. Math: Trig

    Help with vectors, please. Thanks 1) Express point in rectangular form. Give EXACT answer, if possible? (2, 4π /11) 2) Given P = (2. -3) and Q = (-3, -4). find the component form of vector PQ 3) The vector v has a magnitude of 25 inches and a direction of 32° , Express ...
  17. math-please check my answer

    50% of what number is 45? I did 45*.50=22.5 is that the correct answer?
  18. French

    Sra could you please check my french post again.
  19. math

    please check: 10 to the 1st power = 10*1??? 10 to the 0 power = 10*0??? I'm not sure.
  20. math

    Will someone please help me solve this problem. Solve and Check 3x^2=2x=5
  21. Math - Check my answer please

    Simplify. 3w - 10w MY ANSWER: -7w
  22. Math

    Please check my answer. Multiply the reciprocal of 4 1/2 by 8/9. My answer: 9/2 x 8/9 2/9 x 8/9 = 16/81
  23. Math

    3. 8 1/3 x 3/5= 25/3 x 3/5=75/15=2 4. 2 5/8 x 1 2/3 21/8 x 5/3=105/24 105/24=4 9/24 Can you please check the above answers.
  24. Math

    5 1/2 x 3 1/3= 11/2 x 10/3= 110/6 110/6=18 2/6 Please double check the answer thank you
  25. Math

    7 1/5x 2 1/6= 36/5 x 13/6=468/30 468/30= 15 6/30 Can you please check on the answer and the above.
  26. English

    Could you please check these two sentences, please? 1) Water chute and spring board don't have the same meaning, but I think I can use them both with "dive into the water". 2) Superman was both a superhero endowed with superpowers and a shy and insecure newspaper reporter. He ...
  27. Trig

    Solve: x=Arctan(-sqrt3).
  28. trig

    1-tan^2x/ 1-cot^2x = 1-sec^2 x
  29. trig

    what is the rectangular equation for r=12/(3-6cosX).
  30. trig

    find the value of : sin18'
  31. trig

    what is the inverse tangent of (rad3/3)?
  32. Trig

    cos2x(2cosx+1)=0 Solve for x.
  33. trig

    solve for C0T^2X - CSC^2X =?
  34. Math-Trig

    solve for a: V=4/3pia^2b
  35. trig

    The period of y=5 cos pi x is 2 but I don't know how to find it.
  36. Trig

    Help with solving radical fractions.
  37. trig

    how do you graph y=55-4csc(theta+5)???
  38. Trig

    How do you do this problem? 1+i(square root of 3)
  39. trig

    Determine the amplitude of: y=cos x
  40. Trig

    What is the solution set of the inequality x^2-x>20? a)x>5 b)-4<x<5 c)x>5 or x<-4 d)x>0
  41. trig

    how do you graph the equation y=-2cosx?
  42. trig 30

    What is the period of the function y =sin x/4?
  43. trig

    Evaluate cos (2 arcsin (1/4))
  44. trig

    what is the tan of 25 degrees and 01 minute
  45. Trig

    tan(2x)=root3 over 3
  46. Trig

    Solve for X: 5sinx+2cos2x-3=0
  47. trig

    cosxcscx-2cosx=cscx-2
  48. trig

    cos(x+B)=cosxcosB-sinxsinB
  49. Trig

    How do I solve this problem? tan (30° + x)
  50. equations trig

    2cos^2x-3sinx=0
  51. equation trig

    cosx-sinx<1/2
  52. Math (trig)

    4cos(x)+5=6sec(x)
  53. HELPPPPPPP (TRIG)

    4cos(x) 5=6sec(x)
  54. trig

    Prove tanAsin2A=2sin^2a
  55. trig

    What is the angle B? Given that A=46 degree b=4 c=8
  56. trig

    cotxcot2x-cot2xcot3x-cot3xcotx=1
  57. trig

    25q to the second power -81=0
  58. trig

    What is the graph of y = 3 sin (3x + 180)?
  59. trig

    if 8 tan Q=15 then sinA-cosA=?
  60. trig

    cotx/secx-tanx
  61. Alg & Trig 2

    find the sum of 1/2, 2/7x, and 5/x
  62. Alg & Trig 2

    find the sum of 1/2, 2/7x, and 5/x
  63. trig

    solving radical equations... help! 5+¡în+1= n+4
  64. trig

    sinx+cosxcot=csc
  65. trig

    how do you explain y=2 cos(1 half x)
  66. Trig

    Are 120 and -240 coterminal?
  67. algebra/trig

    solve: ln12x = 6
  68. Trig

    What is the phase shift of y=6cos(6x+pi/2)?
  69. trig

    Show that (90-45)=cos90 cos 45
  70. trig

    What is the trigonometric notation for 3-3(sqrt3i)?
  71. trig

    what is the cube root of (-64i)?
  72. Trig

    What is the vertical asymptote of y=tan(x-pi/3)?
  73. Trig

    What is the period of f(x)= 1/2 tan(3x+pi/2) and -2/3 cos(x/3-1/2)?
  74. trig

    How would you go about finding x and y?? [x-8 2 2y] [9x-16 2 6] [ 2 -7x 7] = [ 2 -7 7] [-4 y-4 2] [-4 -1 2]
  75. trig

    sec(90degrees -theta)
  76. trig

    verifying a solution. 4cos^2 2x-2=0
  77. trig

    find cos (x/2) when sint =12/13
  78. Trig

    Find [4(cos115+isin115)]^6
  79. trig

    If z=1+i, then the multiplicative inverse of z esqaire is:
  80. Trig

    cos270degrees -5cos180degrees (0/1)-5(-1/1) 0-5(-1) does it equal -5 or +5?
  81. trig

    how would i graph 3sec(x + (pi/2))
  82. trig

    2x+5y+3=0 what is the value of sin theta
  83. trig

    how do you factor completely.. 18x^2+3x-3?
  84. trig

    Triangle PQR is congruent to P'Q'R. If PQ= x+y, P'Q'+10, Q'R'= 3x-y, and QR=14, then what is x and y?
  85. trig

    Find value of tan75/2
  86. trig

    CosA*Cos17=1 then determine A
  87. trig

    How do you evaluate the expression cos3pi
  88. Trig - Thanks Damon and Lindsey

    Thanks a bunch
  89. trig

    prove that tan^2x+ sec^2x =1
  90. trig

    express 4/5-ã13 plz
  91. trig

    express 4/5-ã13 plz
  92. trig

    what is the amplitude of y=2+cos(-1/2 theta)?
  93. trig

    3x^2+16y^2=48 conic sections
  94. Trig

    (x+3)^2/4^2 + (y-2)^2/5^2 The location of the Foci are at: a.(-3,-1) and (-3,-5) b. (-3,2) and (-3,5) c. (-3,-3) and (-3,7) d. (-3,1) and (-3,-5) I get (-3,2) and (-3,5) Am I correct?
  95. trig

    Give the reciprocal of the following. 7/15
  96. trig

    Find sec^2 x (4 tan^2 x-3)
  97. trig

    sin2x=cos3x then sinx=?(if 0<x<pi/2)
  98. trig

    If A=55 degrees 55 minutes and c=16, find a.
  99. trig

    Tan(cos inverse 5x)
  100. trig

    if cot(x-10)=tan(4x) what does x equal?
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