math..solve for u again

155,622 results, page 86
  1. Math

    A circle has the circumference 28.26cm. What is the area of the circle? use PI as 3.14. i am confused in how to even solve with the circumference to get the area. Please help
  2. Physics

    Note: I am in Alegebra-based Physics. You have landed on an unknown planet, Newtonia, and want to know what objects will weigh there. You find that when a certain tool is pushed on a frictionless horizontal surface by a 12.2 N force, it moves 16.3 m in the
  3. Precalculs

    I have no idea how to do these type of problems. -------Problem-------- Solve each equation on the interval 0 less than or equal to theta less than 2 pi 42. SQRT(3) sin theta + cos theta = 1 ---------------------- There is an example prior to the
  4. Technical Math (College)

    Question: The formula s=4.90t^2 gives the distance s in meters that a body falls in a given time t. Find the distance a ball drops in 4.2 seconds. Use the rules for multiplication of measurements in evaluating the answer.
  5. Math - derivative of sinusoidal (check + help)

    h(t) 0.6cos(2t) + 08 sin(t) h'(t) = v(t) = -1.2sin(2t) + 0.8cos(t) find the vertical displacement when the velocity is 0.8m/s how do i solve v(t) = 0.8m/s I tried the normal way by equating and factoring, however two answers are obtained and the second
  6. economy

    Can you please help me solve the first problem of Working with the Data in Chapter 4 (page 136 #1) of Macroeconomics Fifth Edition by Stephen D. Williamson? I need all the steps of how to solve the problem 1. The employment-population ratio, from the
  7. Algebra 2/Math

    Can you check these thanks. Solve the system by substitution or elimination. 2x+y=1 3x-y=14 Answer: (3,5) x-3y= -12 2x + 11y= -7 Answer: (39,17) 4x+2y=8 12x+6y=24 Answer: no solution 4x-2y=5 2x-y= -1 Answer: no solution 4a+3b =6 8a-b= -9 Answer: no
  8. Please Help!! Math

    Solve for following applying spherical trigonometry... 1.Papua New Guinea (37° 45'N, 122°27'W)(since course was 260°) distance travelled =2250nm. A) use law of cosine to calculate a and thus altitude:or B) use law of sine to calculate N and thus
  9. Math (again)

    Sorry...I forgot to include all of the details for one of my previous questions the complete problem is: 1. Yesterday Josh sold some boxes of greeting cards. Today he sold seven boxes. If he sold 25 boxes in all, how many did he sell yesterday? I can solve
  10. Math

    Solve the given quadratic equation exactly using the quadratic formula. Write the solutions in its simplest form. Using a calculator, determine all irrational solutions to the nearest thousandth. Separate the solutions with a comma and list the smaller one
  11. Math

    Alyssa is doing a card trick with one of her friends, Denise. She only uses 15 cards: 3 diamonds, 3 hearts, 4 spades, and 5 clubs. Denise draws one card, replaces it in the deck, and draws one card again. What is the probability that she draws a heart both
  12. Math

    Solve the given quadratic equation exactly using the quadratic formula. Write the solutions in its simplest form. Using a calculator, determine all irrational solutions to the nearest thousandth. Separate the solutions with a comma and list the smaller one
  13. math

    Two cell phone companies have different rate plans.Runfast has monthly charges $25 plus $10 per gig of data.B A&D’s monthly charge is $18 plus 15 per gig of data. Your task is to determine under what circumstances each company has the better pricing. You
  14. math

    Farmer joe had 3 animals, he wanted to weight Lucy, Nancy and Sue. He only had a scale that started with 100kg. Now, as heavy as those animals were, none of them exceeded he weighted them in pairs. Lucy and Nancy weight 132 kg together and Sue and
  15. physics

    An irregularly shaped chunk of concrete has a hollow spherical cavity inside. The mass of the chunk is 32kg, and the volume enclosed by the outside surface of the chunk is 0.020m^3. What is the radius of the spherical cavity? To solve this, you need to
  16. math

    I have trouble solving word problems. Can you help me solve this problem? If Sally can paint a house in 4 hours, and John can paint the same house in 6 hours, how long will it take both of them to paint the house together?
  17. Math

    Mrs. Lin brings 6 trays of hamburger buns to the barbecue. 2/3 of the trays have wheat buns. How many of the trays have wheat buns? Draw a diagram to solve the problem.
  18. math

    Julius sold 5x as many computers as Sam sold last year. In total they sold 78 computers. How many computers did Julius sell. **Solve each problem by WRIING and solving the equation.
  19. math

    in the equation 3y - x=2 what is the slope of the line of this equation? Using the equation y=mx+b you have to solve 3y-x=2 for Y. M stands for slope and Y stands for Y intercept Doing that I get y = 1/3x + 2/3 I hope that's what you are looking for! Put
  20. High School Math

    for the following write an equation and solve it. Terri and Nick rode their bikes toward each other starting from two towns 24 miles apart. Terri rode three miles per hour faster than Nick and they met in two hours. How fast did each person ride? I think I
  21. math

    At the county fair, the apple pies are lined up side-by-side for juding on a 6-foot table. Each pie has an area of 50.24 inches squated. How many pies are on the table? I don't understand how to solve this problem. Please explain and show me how
  22. Math

    I need help on factoring monomials in quadratic form. The problem is: a² + 17a + 16 I know that the first step is to multiply 16 times the coefficient of "a", which is 1. I get 16. Now I have to fill in factors that when multiplied, equal 16, but when
  23. Math

    Ignoring the walls’ thickness, determine the outside dimensions that will minimize a closed box’s cost if it has a square base and top, if its volume is 32 cubic meters, and if the cost per square meter for the top, bottom, and sides respectively are
  24. math.....need help

    Solve the problem. An open box is to be made from a rectangular piece of tin by cutting two inch squares out of the corners and folding up the sides. The volume of the box will be 100 cubic inches. Find the dimensions of the rectangular piece of tin.
  25. math

    a worker is pushing an 80lb chest up a ramp to land truck. how much force must he use in order to keep the chest from rolling back down the amp? the ramp is inclined 13.8 degrees. draw a sketch with force vectors working in this problem and solve the
  26. Math

    Ignoring the walls’ thickness, determine the outside dimensions that will minimize a closed box’s cost if it has a square base and top, if its volume is 32 cubic meters, and if the cost per square meter for the top, bottom, and sides respectively are
  27. Math

    Use the compound interest formula to solve: $18,000 is invested in an account paying 3% interest compounded quarterly. Find the amount of money in the account at the end of 10 years. (Show values substituted in the formula, and calculate the numerical
  28. al gebr word problem MATH

    parts to fix your car cost $55.35. the mechanic charges $35 per hour for labor. the final bill is $177.85. how long did the mechanic work on your car? write and solve an equation. show work. i got; 177.85 - 55.35 = x x / 35 = is this almost right? im not
  29. math help please

    An art teacher had a total of t markers. He gave an equal number of markers to each of 18 students and had 16 markers left over. Which equation could be used to find n , the number of markers each student received? A t = 18n B t = 34n C t = 18n + 16 D t =
  30. Math

    1. Write the following ratio in simplest form: 32 min:36 min 8:9 8:36 32:9 128:144 2. Marie saved $51. On Wednesday, she spent $8 of her savings. What ratio represents the portion of her total savings that she still has left? 43:8 8:51 43:51 59:51 3. The
  31. Math--4 practice questions?

    1. t + 27 = 21 t = –6 t = 47 t = 6 t = –47 2. 24 = m – 32 m = –8 m = 56 m = 768 m = –56 3. Tamara has eaten 1,400 calories for breakfast and lunch. She has 800 more calories, c, that she can eat for dinner. Write and solve an equation to find
  32. Math

    Please help! Suppose one girl saves $10 every week. Another girl already has $21 and saves $3 every week. Write and solve an equation to determine when the two girls will have the saved the same amount of money. So far I have these expression for each
  33. Algebra

    72. Solve for the variable in the equation: 4.9x + 4.4 = 19.1 x=3? 71. Does a machine that takes one quarter at a time into its input and produces one gumball in its output act like a function? Yes? 69. Does a machine that takes one quarter at a time into
  34. Physics

    A 15 N wooden block is dragged for 15 meters across a wooden floor in 15 seconds... I'm given that the mew (the greek leter uk) or however u say it is .2 I have to make a free body diagram I sloved and got Fn = 15 N mg = -15 N Ff = -3 N How do I solve for
  35. Math

    Which is equivalent to the inequality shown below? z/2 (less than equal too) - 15 a, x (x greater than equal too) - 7.5 b. x (less than or equal too)-7.5 c. x (greater than equal too) - 30 d. x (less than equal too) - 30 How do I solve this problem
  36. Physics

    A golfer hits a ball from the origin with an initial speed of 35 m/s at an angle of 44 degrees above the horizontal axis. The ball is moving down when it lands on a green that is 3.00 m above the level where it was struck. Neglect air resistance. 1. How
  37. math

    um take home test...i have no idea what im doing always sometimes never 1. sin2x=2sinx 2. cos (pie/3+x)=-sinx 3. if tan x=3 and tan y=2 then tan (x+y)=5 4. when you use the half angle formulas you choose whether to use a + or - by noting in which quadrant
  38. Math

    An Italian restaurant serves pasta dishes with the following options: Pasta - angel hair, manicotti, or linguine Sauce - tomato, alfredo, garlic, or meat Cheese - parmesan or cheddar How many different pasta dishes are possible, assuming one item is chosen
  39. math

    the average of 4 concecutive even integers is 17. find the integers samantha, jason, mary-beth, john, tyrik, aaron, katie, and tiffany -- You would probably get better responses if you show what YOU have done so far to try to solve these problems. Our job
  40. Math

    solve sin(theta)=-1 for all real values of (theta) I don't understand but by following the example in my book; sec(theta)=-1 from the pattern of the secant function, sec(theta)=-1 if theta=pi*n, where n is an odd integer. There is no example of sin.
  41. math,algebra

    They may want you to add the fractions and give the answer in forms of a fraction. in that case, you need to convert to common denominators before addineg. In that case 1/3 + 1/5 + 1/10 = (10 + 6 + 3) /30 = 19/30 5/6 - 3/5 = (25 - 18)/30 = 7/30 You answer
  42. Please Help(Math)Mrs.Sue's website didn't help

    Directions:Write inequalities for the numbers 2 - 4 below. Do not solve them! Problems: 2.Your quiz grades are 19, 17, 20, and 15. What is the lowest grade you can receive on the next quiz and maintain at least an 18 average? 3.Stacey and Luis volunteer at
  43. check!

    here is the question: log5(x-4)= log7x solve for x. These are just base 10 logs. log100 = 2 This equation has the same format as log 40 = log (2x20) Since both sides have log base 10, you divide by log base 10 and end up with 5(x-4) = 7x, so 5x -20 =7x
  44. Chemistry

    .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. Math(Please help) - Reiny, Tuesday, April 17, 2012 at 3:18pm You probably
  45. physics

    A roller coaster moves 85 m horizontally, then travels 45 m at an angle of 30.0 degrees above the horizontal. What is its displacement from its starting point? Use graphical techniques. How would I solve this? Solve it my adding the vector displacement of

  47. Math

    A local gym charge nonmembers $ 19 per hour to use the tennis courts. Members pay a yearly fee of $300 and $4 per hour for using the tennis courts. Write and solve an equation to find how many hours you must use the tennis courts to justify becoming a
  48. math

    9x+5greater than or equal to -40 or 7x+3greater than or equal to -11 solve and graph I got the answer of x greater than or equal -5 or x is greater than or equal to -2 as the solution to this equations, but how do i put this into a soltuion set the way
  49. math

    Please show me how to solve: At the local ballpark, the team charges $5 for each ticket and expects to make $1,300 in concessions. The team must pay its players $1,800 and pay all other workers $1,500. Each fan gets a free bat that costs the team $3 per
  50. Easy Math??

    Carol started from home on a trip averaging 30 miles per hour how fast must her mother drive to catch up to her in 3 hours if she leaves 30 minutes after Carol? Use an equation to solve your work. a.35 mph b.39 mph c.40 mph I heard that the answer is a,
  51. 4th grade math

    solve the following problems using pictures, number or words. At president's inaguration in 2005, the newpaper headlines stated there were about 400,000 people in attendance. If the newpaper rounded to the nearest ten thousand, what is the largest number
  52. 4th grade math

    solve the following problems using pictures, number or words. At president's inaguration in 2013, the newpaper headlines stated there were about 800,000 people in attendance. If the newpaper rounded to the nearest hundred thousand, what is the largest
  53. Math

    Okay so the question is: "Three people are cheering simultaneously. Measured individually, the cheers are 80dB, 80dB, and 50dB. What would the cheering measure totally? Use your knowledge of logarithms to solve." So the formula we were given a few days ago
  54. math

    Formulate a system of equations for the situation below and solve. A theater has a seating capacity of 660 and charges $2 for children, $4 for students, and $6 for adults. At a certain screening with full attendance, there were half as many adults as
  55. Math, rational inequalities

    Please can someone help me solve this problem? 2/x + 6/x-1 less than or = -5 8/x -1 <= -5 Now add 1 to each side 8/x <= -4 so x must be < 0 Multiply both sides by x (a negative number). This means you have to change the direction of the > 8
  56. math

    1) Can someone tell me how the write 4x^3 + y^2 - 4y + 36=0 in standard equation (solve for y and complete the squares). 2) A pencil manufacturer determines that the daily cost c in dollars of producing n dozen pencils is given by c=(n^2/25,000) - (2n/5)
  57. math

    Please show me how to solve: Brenda drove three times as far as Jan. Brenda drove 24 miles more than Jan. How far did Jan drive?
  58. math

    Solve for x in the following equations. (4 marks) log3(x - 5) + log3(x + 3) = 2 <--- both log3.. 3 is subscript log7x + log7(x - 1) = log72x <--- all log7.. 7 is subscript.
  59. Math

    How do you solve this? 8-2(t-1)=t+7 The answer is suppose to be 1 u-8-3u=2u+7 The answer is suppose to be -15/4
  60. Math

    square root (x-3)-square root(x)=3 can someone please solve this for me
  61. Math Elimination method

    PLEASE HELP!!!!!!!!!! Solve by the elimination method 6x - 9y= 7.5 7y - 2x= -4.5 Please help!!!
  62. Math

    600,000 - x / 600,000 = .10 solve for x.
  63. math

    I really need help. Please help. Solve for x: log(subscript)3(3x+1)-log(subscript)3(x-1)=2
  64. MATH

    Look at this inequality 4m-9<2m-3 Solve the inequality for m. PLEASE HELP ME! CAN YOU PLEASE DO IT STEP BY STEP?
  65. math

    Solve for x: x square root of 3-2=5x square root of 3?
  66. math substitution method

    use the substitution method to solve 7x+5y=-26 x=28-6y
  67. math/ elimination& substitution

    how do i solve this? using elimination or substitution? 2x-3y=-1/12 y=-x+7/12
  68. math

    600,000 - x / 600,000 = .10 solve for x.
  69. Math

    Solve log base 2 of (3x-1) - log base 2 of x = -2
  70. Math

    Solve the equation. log 6.44 + 3 log x - log x^2 = log 6.44 + 3
  71. math

    how to solve: tan(sin(x))=tan(x)sin(x)?

    PLEASE CHECK MY MATH ANSWERS PLEASE AND LABEL THEM LIKE 1.WRONG AND STUFF THANKS ! 1.There are 5 red crayons, 6 yellow crayons, and 11 blue crayons in a shoebox. What is the ratio of the total number of crayons to the number of yellow crayons? A.6:22
  73. algebra

    I need to solve Y+15=18
  74. Algebra

    Solve. x=√6x-27 +3
  75. Geometry

    Solve. 2x^2 = 8x

    solve:p+4/p=-5 Please I need help
  77. algebra2

    Solve P = 2w + h for h.
  78. Geometry

    Solve. y-4 = 3/4y
  79. Algebra

    Solve for w. 8-(3/w+1)=(7/w+2)
  80. algebra

    Solve: x-2y= -5 2x+y= -5
  81. Precalculus

    Solve for a. a/a+5 - 2 = 3a/a+5
  82. algebra

    solve for x 3x+4y=24
  83. Mathematics

    R^2 + R^2 = R^3 Solve for R
  84. Algebra 2

    How do you solve In (x - 4) < 6?
  85. Algebra 1

    Solve: z/6-z/1=1/6
  86. algebra

    Solve for x: (-1/3)(-4+3x)=1/2
  87. algebra II

    solve: -3/4(k)<-6
  88. Algebra

    How do you solve: (2x+1)(x-4)=0
  89. algebra

    please help me solve this.
  90. algebra

    Solve for x: (-1/3)(-4+3x)=1/2
  91. algebra

    how do u solve x^3+2x^2-6x-6=(x-2)(x+3)(x+k)
  92. Algebra 1

    solve f(x)=3x+2 for x.
  93. Algebra

    Solve: -10<=4x-5<--4
  94. algebra

    (ca)/(b)=(fd)/(e) solve for a
  95. algebra

    8x-24=4x solve
  96. Maths

    Solve for x: 2(27)^x=9^(x+1)
  97. algebra

    how do you solve x^2-4/x^2-4+4 x 2x-4/x+2
  98. Algebra

    Solve 16 - 2(8w-7)= 3w - 18(2-w)
  99. Algebra

    Solve. 7>-2x + 6 or 8¡Ü -4x+3 A. [ -1/2, ¡Þ] B. (-¡Þ,¡Þ) C. [-¡Þ, -5/4] D. [-¡Þ, -5/4] U [-1/2, ¡Þ]
  100. Algebra

    (y^3-y^2-5y-5)/(y+1) can someone help me solve this?