math..solve for u again

155,622 results, page 61
  1. Math

    Solve sin theta=-1 for all real values of theta
  2. math/ algebra

    solve the equation log (4x)= log5 + log(x-4)
  3. Math

    Solve for the 101st term of the sequence whose 1st term is x-y and d=2x+y-3.
  4. Math

    Solve for triangle ABC which have angle A =25.25, angle B =60.51 and a =3.82.Find c
  5. math

    How would I solve this equation for x? 0=3.9657(0.9982^x)ln0.9982
  6. math

    Solve the equation. Check the equation. c= square root of(3c-8) Please Help!!!! Thanks.
  7. Math

    Solve (16x^2)^-3/4 Please help using step by step. I don't understand how to do this. Thank you
  8. Logarithms (math)

    how do you solve for x 3.4e^(2-2n)-9=-4 I don't know what is the step by step process. Help please!
  9. math vectors

    If Vector a = (2, 2k), Vector b = (4, -k), are perpendicular, solve for k with solutions?
  10. Math

    can someone help me solve for x for this equation (0.5)(((cos(180-x))^(2))(cos(90-x))^(2))=0.0500
  11. Math!Please Help Me!

    Solve the following quadratic by either factoring or using the quadratic formula: 6x2 - 5x = 6 6x^2 -5x -6 = 0 (3x+2)*(2x-3) = 0 Take it from there
  12. math

    Solve by multiplication principle -2x is greater than 1/9 answer: x is greater than -1/18
  13. Math

    1) Given that p(-3), p(-1), and p(5)=0, which expression could be p(x)? A)x^3-x^2-17x-15 B)x^3+x^2-17x+15 C)x^3-3x^2-13x+15 D)x^3-9x^2+23x-15 How do I solve it? Please help
  14. Math

    Use Cramer's Rule to solve: 3x-5y=21 and 4x+2y=2. a=3, b=-5, c=4, d=2, e=21, f=2 21(2)-(-5)(2) divided by 3(2)-(-5)(4) =52/26= x=2 3(2)-21(4) divided by 3(2)-(-5)(4) =78/26= y=3 answer: (2,3)
  15. Math

    1.Sally age is 12 years plus half her age. How old is she? 2.Given that: 4x-y+9=0 and 3y-2x=7, solve for x.
  16. math

    Use quadratic formula to solve each equation 3k^2+6=6 I get 3/2 but I can't seem to get the other half of the equation such as x=3.7 or .26 etc...
  17. Math

    A triangle has verticies of (1,3) (4,5) and (6,2). Is this a right angle triangle? Solve using algebra.
  18. Math

    I just need help to solve these steps. 8 to the 2 power +9(12/ 3*2)-7 I know the answer is 129 but I'm not sure of the steps to get to it.
  19. math

    a right 90 degrees triangle/ label L,J and K. JK is 7 and angle L is 31.6.solve the given right triangle
  20. Math

    Explain how to solve the following system of equations. What is the solution to the new system? 2x + 2y + z = -5 3x + 4y + 2z = 0 x + 3y + 2c = 1
  21. math/algebrall

    solve the system of equations:4x - 3y equals 14 and y equals -3x plus 4 i think its either 1(4,10) (2,2)
  22. math

    input output 10 12 15 22 21 _______ 6 4 29 50 _______ 2 how do i solve this problem?
  23. Math(Please help)

    .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.
  24. math;SOS

    solve the logarithmic equation. log(5x+7)=1+log(x-9)
  25. math

    solve equation if equation has no solution state so,simply when necessary 2/3x+1x=1/6 1/x+4-1/x-2=x+2/x^2+2x-8 help me please
  26. math

    PLEASE!!!!i need help on these 4: *4y=15-3x 2y=3x+21 *4x=5y-14 y=-6x-9 *5x=4y-30 2x=3y=-12 *2/3y=10+4x 5x=1/3y-8 use linear combinations to solve the system of linear equations thank you!!!
  27. math

    I don't understand how I am supposed to solve if i have something like (-7) to the power of -2... or 3/4 to the power of -1
  28. math

    PLEASE!!!!i need help on these 4: *4y=15-3x 2y=3x+21 *4x=5y-14 y=-6x-9 *5x=4y-30 2x=3y=-12 *2/3y=10+4x 5x=1/3y-8 use linear combinations to solve the system of linear equations thank you!!!
  29. Math: Inequalities

    How would I solve this inequality and graph? (x+2)((x^(2)-x+1)) > 0 I got x > -2 and x^(2)-x+1 > 0 How would I graph x^(2)-x+1 > 0 because I can't factor it.
  30. math

    How do i solve a set of equations that are set equal to eachother?
  31. math

    Find the restrictions: how to solve problem 1. y = 3- sqrt(2x-8) x => 0 2. y = 9-sqrt(x -2) x =>0
  32. Math help

    Please solve it step by step. Integrate: ∫(x^3/(√(x^2+1))dx
  33. math

    how do you solve these problems? 1.2x/3 + 1/3 - x/8= 2/3 2. 3n + 9/10 + n/5= -2 3/10 3. 3k/4 - 28 - 2k/3 = 37 thank you can you please show me step by step how you got the answer?
  34. math

    can you show me how to solve linear systems step by step????? 2x+y=5 x-y=1
  35. Math solving for x

    In the expression 4x squared + 7 what is the degree of 4x squared? How do I solve for X?
  36. math

    solve tan2(x+41 degrees) in real number fo degrees
  37. Math

    Explain how to solve the following system of equations. What is the solution to the system? 2x+2y+z=-5 3x+4y+2z=0 x+3y+2z=1
  38. Math (algerba 1)

    (4 X 10 to the -5th power) to the 2nd power. How would I solve this?
  39. Math

    how do I go about trying to solve this problem (6 square rootof 5 +2 square root of 7)
  40. math

    How do you solve this? 5x- [1.5 -3.6] [0.2 1.3] [-0.3 2.8]= [-5.6 1.7] 5x/5[-1.5 -3.6] [0.2 1.3] [0.3 -2.8]=[-5.6 1.7] x = [-1.5 3.6] [0.2 1.3] [0.3 -2.8]=[-5.6 1.7] [-1.5 + 0.2 + 3.6 + 1.3] [0.3 + -5.6 + -2.8 + 1.7] x = [-1.3 4.9] [-5.3 -1.1] I have tried
  41. math

    explain how to solve 82 +9(12 divided 3.2) -7 I thing 8x2=16 + 9=25 12 divided 3 x 2 -7 =1 25 + 1 =26
  42. math

    solve 4^(3-x)=7 to 3 s.f. showing all workings. I have got as far as -x =log(7)-3log4/log(4)
  43. Math

    Write a word problem using 7 groups. Solve the problem
  44. Urgent Math Help

    Solve for x: 1.) ln√x-8=5 2.) log2x+log2(x+2)=log2(x+6)
  45. Math

    How can you solve this inequality using an algebraic method. -x^3+2x^2+4x-8 > or equal to 0 (x-2)(-x+2)(x+2) > or equal to 0
  46. Math

    Solve the system using elimination. 10y − 2x = 50 6x − 3y = 12 A. (5, 6) B. (2.1, 0.2) C. (2.1, 4.6) D. (6, 5)
  47. math

    Solve for x: 𝑦 = 2sin−1(𝑥 −5)
  48. math

    Solve the equation: sin (3x+30°) =√3/2 for 0°≤x≤90°
  49. math, algebra

    Can someone put this in an equation for me . I want to solve it but i just need how to set up in the equation. (80)
  50. Quick math help

    please help me solve these problems! Thank you! 1. Simplify: (3p^5)(5p^2)+(7p^3)(2p^4) 2. Simplify: (6x^2-2xy+3y^2)-(4x^2-xy-y^2)
  51. math

    Solve the initial value problem d^2x/dt^2+2dx/dt-3x = 0, x(2π) =1, x(2π) = 13
  52. math,correction&help

    Is this right:if it still needs more can someone help me out what else can i say....thanks why are polynomials important? polynomials are important because the are used to determine and solve the unknowns in equations. Many natural processes can be modeled
  53. Math (matrices)

    No one answered my matrix question. Let me rephrase: Let A, B, and 0 be 2x2 matrices. Assuming that A is invertible and 0 is all zeroes, what is the inverse of the matrix [A|0] [B|A] (that is a 4x4 matrix represented as 4 2x2 matrices) The answer is in the
  54. science, chemistry, biotechnology

    "You're creating a standard curve for pyruvate. You need to create a standard with 20 micromoles in a cuvette. How much 100 mM pyruvate would you need?" My understanding is to solve for VOLUME using the equation: micromoles = (mM)(volume in ml) 20
  55. I need help again

    A car enters a turnpike 22 miles north of a town. The car travels north at an average speed of 64 miles per hour. How far is the car from the town after 4 hours? How do you solve the linear function then solve the problem? If you could help me understand
  56. algebra

    Solve system of equations to model the problem then solve: The length of a rectangle is 7 inches more than the width. The perimeter is 34 inches. Find the length and the width of the rectangle.
  57. algebra

    Solve system of equations to model the problem then solve: The length of a rectangle is 7 inches more than the width. The perimeter is 34 inches. Find the length and the width of the rectangle.
  58. ALgerba 2

    I would really appreciate help on these equations. 3. Devon tosses a horseshoe at a stake 30 feet away. The horseshoe lands no more than 3 feet from the stake. (a) Write an absolute value inequality that represents the range of distances that the horseshoe
  59. Calculus - Taylor

    could you please help me with solving this problem? #1) Find the Taylor polynomial Tn(x) for the function 'f' at the number 'a'. f(x) = sqrt(3+x^2) ; a=1; n=2; my work so far: f (x) = sqrt(3+x^2) = (3+x^2)^(1/2) f ' (x) = (1/2)(3+x^2)^(-1/2) f '' (x) =
  60. Physics

    Can someone help me solve this problem? This example problem will help me solve the actual homework problems If an 0.6kg apple is dropped from 0.5m height onto a seesaw and flips up a 0.25kg kiwi. To what height does that kiwi reach. Assume all the energy
  61. ALGEBRA 2

    would really appreciate help on these equations. 3. Devon tosses a horseshoe at a stake 30 feet away. The horseshoe lands no more than 3 feet from the stake. (a) Write an absolute value inequality that represents the range of distances that the horseshoe
  62. Computer Organization

    Help me solve this question by using 1's complement (i) 110(Base2) - 010(Base2) (ii) 1010(Base2) - 1000(Base2) Help me solve this question convert The Value -40 and 52 to 8-Bit digit in form of: (i) Sign and Magnitude (ii) 1's Complement (iii) 2's
  63. Physics

    A particle leaves its orgin with a velocity of 4 i m/s and a constant acceleration of (-2i + .5j) m/s^2. At the time the particle reaches its maximum X corrdinate a) what is its velocity? b) what is its position vector? I'm not sure which equations i
  64. Trigonometry

    Solve for x to the nearest hundreth and can you explain how you get your answer I don't understand 3^x = 1.295 Your question has nothing to do with trigonometry. You can solve for x by taking the logarithm (to any base) of both sides of the equation. Then
  65. Math

    In a collection of nickels, dimes, and quarters worth &6.90, the ratio of the number of nickels to dimes is 3:8. The ratio of the number of dimes to quarters is 4:5. Find the number of each type of coin. Use a coin value chart to help. well, 4:5 is the
  66. Algebra

    Translate each situation to a system of equations. Do not attempt to solve. Paint Town sold 45 paintbrushes, one kind at $8.50 each and another at $9.50 each. In all, $398.75 was taken in for the brushes. How many of each kind were sold? My teacher told me
  67. Al

    Factoring to solve quadratic equations: Find the value of x as it relates to the triangle. Area = 600 cm^2 There is a large triangle that is divided by a 90 degree angle in the middle. That 90 degree angle line is "x" and the complete bottom of the large
  68. PLEASE HELP ME SOLVE !!!!!!!!

    A mass of 11 kg is placed on a frictionless incline which is inclined at an angle of 69 degrees above the horizontal. It is held in place by a rope which is attached to a wall at the top of the incline. The rope is angled 13 degrees above the direction
  69. Math

    . Mark pays $4.68 for 0.72 of a pound of almonds. Based on this cost ratio, which statement is true? A. Mark pays a rate of $3.37 per pound of almonds. B. Mark pays a rate of $3.96 per pound of almonds. C. Mark pays a rate of $5.40 per pound of almonds. D.
  70. Math

    Hi, would someone mind just checking the answer I got for this formula and tell me if I'm on the right track or not. Question... x+y=21 3x=4y Answer I got... x=84 y= -63 I didn't get that. Check your math. I found 7y=63 but not y = 63. You can always check
  71. Chemisty

    How do I solve what is the mass of a 32.5 mL sample of ethanol if the density of ethanol is .789 g/mL. I know Mass = Density * Volume. So 32.5 mL * .789g/mL = the mass, but I don't know how to solve that.
  72. algebra3

    can u solve the equation 1)1.2x= 2.3x-2.2 2)[x-4]= 15 3)[13+2x]= 5 1) 1.2x = 2.3x - 2.2 2.2 = 2.3x - 1.2x 2.2 = 1.1x x = 2 2) x - 4 = 15 x = 15 + 4 x = 19 3) 13 + 2x = 5 2x = 5 - 13 2x = -8 x = -8/2 x = -4 it's all about getting the same variables to the
  73. math

    A trapezoid with an area of 48m2 has a height of 6m. One of its bases is 12m. Write and solve an equation to find the length of its other base. Also explain the work so I can understand when I do the test. Thanks
  74. math

    I need help for these two problems and if I can get the steps thank you. 1.solve for x: 0.34=1/(1+x)carrot3 2.If you buy a share of stock for $15 and sell it 2 years later for $18.50, what is the annual percentage return (on a compound basis) that you
  75. math

    I believe Lance meant to write x = -5/18 I am wondering why you have two minus signs before the number 13. Two minuses make a plus, but usually they are not written that way. combine like terms -18x=5 solve for x x=5/18 what does x equal in...
  76. math

    a block of wood in the shape of a cubiod has lenght 2.5meter and breadth 1.5 meter and heightt 2 miter how many cubical blocks each of edge 50 cm can be cut from it plz solve
  77. Math

    At 1 pm two trains, traveling toward each other leave from towns that are 312 km apart. One train averages at most 82km/h and the other at most 74km/h. What is the earliest possible time for them to meet? Please help me solve this. I'm not exactly sure how
  78. math

    can someone check my answer please? solve using multiplication principle. -4x>1/11 The way I solved it was dividing both sides by -1/4 to isolate x then I simplified left side which is -1/44 simplifying it to -1/11 is this correct or did I miss a step
  79. Math help please!

    Mrs. Miller sells a house for $179,000. If she earns a commission of 6%, how much money does she earn? Write a porportion and show your work. Can someone help Me understand how I would solve this? Thanks!
  80. math

    my teacher gave me exam review booklets and there is something i don't understand.. the question is : Find the slope of a line that passes through the points (-9,-3) and (-7,-1). if someone can please explain to me how to solve this it would help majorly !
  81. Math

    A cup of coffee costs 80c less than a burger.Together they cost 220c. Use this information to form an equation and solve it. This question I can't get my head around. It's due in 2 days but I would like to get it done sooner. Thanks.
  82. Algebra 1

    Solve by completing the square: A rectangular patio has a length of (x + 6) m, a width of (x + 8) m, and a total area of 400 m2. Find the dimensions to the nearest tenth. Please help me with this math problem. Thanks so much.
  83. math

    please guys help me this question, how to solve it. Calculate the total surface area of a hollow cylinder whose radius is 15 cm and height is 20 cm. (a)3297 cm^2 (b)1884 cm^2 (c) 3768 cm^2 State why you choose a,b or c?
  84. sixth grade math

    The poster shows how many of its games the football team has won so far. Express this information as a fraction, a percent, and as a decimal. Can someone show me how to solve this problem?
  85. Math C30

    Does anyone know a simple way to solve identity problems? Is there a good wedsite I could learn from? I am having a really hard time with them because of the many steps involved in the way that I have been shown. (FOIL, common denominators, etc.)
  86. Math

    Find the coordinates of the point at 180 degrees on a circle of radius 3.4 centered at the origin. Round your answers to three decimal places, if required. ( , 0 ) I got 0 as the y coordinate. Please help me solve for x
  87. Math

    Hi. This is my question: An art student wants to make a string collage by connecting six equally spaced points on the circumference of a circle to its center with string. What would be the radian measure of the angle between two adjacent pieces of string,
  88. Algebra

    Person A can paint the neighbor's house 2 times as fast as Person B. The year A and B worked together, it took them 5 days. How long would it take each to paint the house? So, i know how to setup the problem, but i'm not sure what steps I need to take to

    Hi can some one go back to my Math logic problem and possibly give me one more example? thanx :) I found a paper you may want your library to get for you: It is probably in the local college library. I
  90. Solving inequalities

    I have to solve the following inequalities: x^2 + y^2 is less than or equal to 49 y is less than or equal to 3-x^2 I know that these are the equations of a circle and a parable. There should be 3 solutions. However, I am not sure how to solve these
  91. PreCalculus

    Hi i don't know how to do this problem solve for n^3 given that log(40 SQRT(3))/log(4n) = log(45)/log(3n) Thanks i'm copletely lost and don't know how to solve
  92. Chemistry

    When 23.3 mL of 0.14 M HCl are added to 50.0 mL of a 0.16 M solution of a weak monoprotic base, the pH of the solution is 10.50. What is the Kb of the weak base? do u find moles of both and then add the moles for HB+ and then just use the B- moles for the
  93. Math(Please check answers)

    1) Solve the equation: 15(7x-6) = 3x-5 My answer is (-85/108) 2) Mary and her brother collect coins. Mary has 4 times the number of coins that her brother has. Together they have 175 coins. How many does Mary have? My answer is 140 3) Perform the indicated
  94. physics hey bob

    you help me solve this problem. but how am i suppose to if i don't know the mass of the car? on a level road the stopping distance for an automobile is 35.0m for an initail speed of 90 km/hr what is the stopping distance of the same automobile on a simalr
  95. math

    A book publisher is shipping a new book in boxes of 200. If 30 boxes fit in 1 shipping crate, how many books are in 20 shipping crates? Explain the mental math you used to solve the problem.
  96. Math - Functions

    For the real valued functions f(x) - |x| - 4 and g(x) = sqrt(5 - x) Find the composition of f o g and the domain in interval notation. Can someone help me solve this?
  97. Math

    David wanted to solve 3(x-7)=5. As a first step, he wrote 3x-21=15. What error did he make? Correct his error and then find the solution?
  98. math

    Solve the equation. (Enter solutions from smallest to largest. If there is no solution, enter NONE in the answer boxes.) 5x2 = 9x + 2
  99. math

    I'm trying to solve by completing the square but i always get stuck at the end.. 3x^2-6x+2=0 3(x^2-2x)+2=0 3(x^2-2x+1-1)+2=0 3(x-1)^2 -1 =0 3(x-1)^2=1 now what do i do?... the answer is supposed to be x=3+-(square root)of3-> the whole thing over 3
  100. Math

    Can you help with this equation? Have to solve for the indicated variable: For x: With equation y = x + 1/x - 1; in case it doesn't make sense; the x + 1 is in the numerator and the x - 1 is in the denominator. Thank you for your help. Cassandra