math..solve for u again

156,254 results, page 70
  1. Math

    Solve: 1.) 2x² + 24 = x² The answers I obtained were: x = i√24 and x= -i√24 are these correct? 2.) 9x³ = 25x 3.) 5x² - x = 7x² - 5x - 2 4.) 2x² = x³ + 4x - 8 ~Thank you
  2. Math

    A slide 2.6 m long makes an angle of 27° with the ground. How high is the top of the slide above the ground? Could someone show me how to solve this? I'm not sure where to begin.
  3. math

    Using taylor series solve lim x→0 ((sin^-1 6x)-(sin 6x))/((tan^-1)(6x)-(tan 6x) I don't know how to start this problem
  4. math

    a factory produces 6 motorcycles in 9 hours write a proportion and solve it to find how many hours it takes to produce 16 motorcycles. help me please!
  5. math

    35 students attended class on monday tuesday 26 students attended what was percent of decrease,show steps to solve
  6. Math - Exponential equation

    Solve the exponential equation. Express your solutions in exact form only. Please show all of your work. 5e^(x log(9)) = 11
  7. Business Math

    Using the simplex method, solve the following linear programming problem: Maximize: P= 5x+2y Subject to: 4x+3y < or equal to 30 2x-3y < or equal to 6 x > or equal to 0, y > or equal to 0.
  8. math

    write a word problem involving the number of pages in a book. then write the numerical expression that you would need to use to solve your problem.
  9. 6th grade math

    your mother gave you $13.32 with which to buy a present.This covered 3/5 of the cost.how much did the present cost? can someone please help me and also show me how to solve this?
  10. Math

    Use place value to solve. There are 75 children in the concert. there are 8 boxes of song books. there are 10 books in each box.Is there a book for each child in the concert? How do you know?
  11. math

    Which of the following equations represents the equation for the line that is parallel to the given line and passes through the given point? y= 1/5 x - 10; (15, -16) A. y = -5x +19 B. y = 1/5x + 91/5 C. y = 1/5 x - 19 D. y = 5x - 19 I do know that to be
  12. 6th grade math

    Explain how you know whether to add a number to or subtract a number from both sides of an equation in order to solve the equation.
  13. math

    Use proportions to solve this problem: Lisa ran 3 miles in 21 minutes. At that rate, how long would it take Lisa to run 5 miles?
  14. word problem

    A man has 37 coins in his pocket, all which are dimes and quarters. If the total value of his change is $6.70, how many dimes and how many quarters does he have? Let x represent the number of dimes and y represent the number of quarters. its asking me just
  15. Pure math

    1.Using your calculator,solve 4 ø in each of de 4lowing equations correct 2 1 decimal place,and with de restriction that 0 degree lessthanequals ø lessthanequals 90 degree
  16. Pure math

    1.Using your calculator,solve 4 ø in each of de 4lowing equations correct 2 1 decimal place,and with de restriction that 0 degree lessthanequals ø lessthanequals 90 degree
  17. Math

    how do I solve; two parallelograms have the same base length. The height of the first is half the height of the second. What is the ratio of the area of the smaller parallelogram to the area of the larger one?
  18. math

    Given two numbers whose sum is 56. Six times the larger is 72 more than 5 times the smaller. Find the numbers. Please help me solve this problem in a simple explanation so I can understand it.
  19. math

    Use the formula to solve for c. Choose the right answer. Amount Financed (m) = $275 Number of Payments per year (y) = 12 Number of Payments (n) = 18 APR (I) = 12%
  20. algebra,math

    Solve the equation. Check both solutions and only write the real solution. the square root of 6m minus 5 = m A. {1} B. {5} C. {1, 5} D. no real solution I think its B
  21. math grade 12

    Sara got 85% and 89% on her first two Maths tests. What must she get on her third test to have at least a 90% test average. Assume three tests, represent the problem with an inequality and then solve it.
  22. MATH

    SUPPOSE IT TAKES NO MORE THAN 25 MIN FOR YOU TO GET TO SCHOOL. IF YOU HAVE TRAVELED FOR 13.5 MIN ALREADY, HOW MUCH LONGER, AT MOST, MIGHT YOU TAKE TO GET TO SCHOOL? PLS HELP ME. I NEED TO SOLVE AN INEQUALITY THAT MODELS THIS PROBLEM. THANKS
  23. Math

    How do I use pythagorean theorem if I already know what c is, but I am missing one of the legs? If you know the length of one of the legs, a (besides the hypotenuse, c), then use b^2 = c^2 - a^2 and solve for the unknown leg length, b. This only works IF
  24. Math

    Use a graph to find a number delta such that if abs(x-pi/4) < delta then abs(tanx-1) < 0.2. I understand that the epsilon is 0.2. But what step do I take next? How do I solve the problem?
  25. math

    Solve the mathematical puzzle. Determine the digits of F from these clues. The digits of F are all the same. The sum of all the digits of F is 12. The answer when any two of the digits are multiplied together is also 9. F is a four-digit number.
  26. math

    How do I solve the equations using the elimination method: .3x-.2y=4 and .4x +.3y= 49/23 Normally I would multiply the decimals by 10 to make them whole numbers, but that fraction is really throwing me off. What do I multiply to eliminate that fraction?
  27. Math

    the sum of two numbers is 27. one number is 3 more than the other number. write and solve a system of equations to find the two numbers. i understand the first equation but i don't know the other one.
  28. advanced math

    If 0°<= 360°, solve the equation, sec x=-2 a. 150° and 210 ° b. 210° and 330° c. 120° and 240° d. 240° and 300° I believe it is C. am i right?
  29. Math

    how do I solve; two parallelograms have the same base length. The height of the first is half the height of the second. What is the ratio of the area of the smaller parallelogram to the area of the larger one?
  30. MATH

    i am thinking of a number. if you multiply it by 7, then add 15, and finally subtract 3^2 you get 48. write and solve an equation that describes the number (x) that i am thinking of. how do i find it? what is x?
  31. Math

    use the sum and difference identities to find the cosine angle cos pi/9 cos pi/3 - sin pi/9 sin pi/3 I do not know how to solve this because pi/9 is not on the unit circle.
  32. math

    graph the equation by plotting the points: 35-5y=0 i know how to put the solutions on the graph. i am stuck on this equation. i think x=0 but i can not figure for y. please help me and show me the steps to solve this.
  33. math

    In a recent survey, it was determined that 1 out of 500 people had more then 6 siblings, based on this statistic what percent of people have more than 6 siblings? Please show me how to solve this!!!
  34. Math- Data Management

    How would you solve this problem. The mean of 10 numbers is 8. If an 11th number is now included, the mean becomes 9. What is the value of the 11th number? Make an algebraic solution.
  35. Math

    a store earned $797.30 for the sale of candid apples at $2.28 each. write & solve an equation that represents how many candid apples were sold? Thanks!!
  36. math

    Solve the equation by completing the square. If the solutions are real, give exact and approximate answers. Otherwise, list the exact solutions. 7x^2-4x+1=2x^2-7x+3 Please help!!!!! :(
  37. SAT Math

    9, 13, 17, 21, ... In the sequence above, each term after the first is 4 greater than the previous term. What is the difference between the 105th term and the 99th term? I have no idea how to solve this problem
  38. math

    2/3 over 10 equals 1.8/r solve for r. (2/3)/10 = 1.8r. First, invert and multiply the denominator; i.e.,10. (2/3)*(1/10) = 1.8/r 2/30 = 1.8/r Now cross multiply. 2r = 30*1.8 2r = 54 Now divide both sides by 2 2r/2 = 54/2 r = 27 check my thinking. check my
  39. math

    Solve each inequality 1. m-7<6= 2. n-8>5= 3. p+5<10= 4. there are 20 students and unknown number of adults, the bus can hold at least 35 people. What is the greatest number of adults who can chaperon?
  40. math

    Solve the problem. If the answer is an amount of money, round to the nearest dollar. A chemical solution contains 3% salt. How much salt is in 4.5 ml of solution?
  41. math

    A factory produces bicycles 6 motorcycles in 9 hours. Write a proportion and solve it to find how many hours it takes to produce 16 motorcycles
  42. Math(Please check)

    The following function is one-to-one; find its inverse f(x)=x^3+5 I know that the first step would be to set y = to x so I did y=x^3+5 Then you swap x with y so x=y^3+5. Then you solve for y and this is where I think i messed up. I did y^3=x-5 = y=x^3-5
  43. Math problem help

    This problem is so hard I've tried solving it but I keep getting stuck. Could someone help with showing the steps please... Solve the system of equations for x and y by letting a=1/x and b=1/y, x does not equal 0 and y does not equal 0. 3/x+2/y=2/3
  44. Math

    1. All real numbers that are less than -3 or greater than or equal to 5 A. x<-3 or x≥5*** B. x<5 or x≥-3 C. x≤-3 or x>5 D. x≤-3 or x≤5 2. The time a cake must bake is between 25 minutes and 60 minutes, inclusive. A.
  45. Math

    For example 80 71 43 65 45 is the winning number and 51 69 18 81 37 is the machine number,how do i solve this problem to get the accurate next winning numbers from 1-90? Tutor me the exact calculation and formula please.
  46. Math-Limits

    How do we evaluate limit of, lim x-> 0 [ln(x+1)/( (2^x) - 1)] I tried using the substitution x+1 = e^k , when x tends to 0 so does k, which gave out, lim k->0 [ k/((2^((e^k) - 1)) -1 ) ] which I simplified into( for the ease of use let e^k =a) lim
  47. Math

    How do i solve the functions domain, range, x intercept and y intercept for this function..there is a a shaded dot on (-4,-4) and then theres a curved line going up to an unshaded dot on (0,0)
  48. math practice help

    add or subtract (2x^2+6x+1)+(-7x^2+2x-3) 5x^2-4x-2 -5x^2+8x-2 5x^2-8x+2 -9x^2-8x+2 (3x^2-7x-4)-(6x^2-6x+1) -3x^2-x-5 -3x^2-13x+5 9x^2-x+5 3x^2-13x-5 These are just practice problems. could someone help me figure out how to solve them and explain how they
  49. Math

    If a person walks 1/2 of a mile in each 1/4 of an hour, what is the rate per hour at which they walk? A. Write an expression to represent the problem? B. Solve the problem.
  50. Math

    The greater of two consecutive even integers is six less than twice the smaller. Find the integers. Let the smaller be x. That means that the larger is x+2. From your statement x+2=2x-6 Solve for x. I hope this helps. Thanks for asking.
  51. Math

    Evaluate the expression for the given value of the variable. Show your work. [-4b-8]+[-1-b^2]+2b^3;b=-2 Solve the equation. Check for extraneous solutions. 9[9-8x]=2x+3. Show your work. I really need help with both of these problems.
  52. Math

    36 is equal to 45% of a number n. Write and solve an equation to find n. Write the percent as a decimal. Equation=? n=? My friend and I are both stumped on this question.
  53. math

    jill has four of her five game scores: 8 6 6 3 her average score for the five games is 6 points. what is the fifth game score? write an equation to help solve the problem.
  54. Math

    Lee has 35 dimes and quarters that total $5.00. Solve the system of equations to find how many dimes and how many quarters he has. d+q=35 0.1d+0.25q=5 Please show your work thanks
  55. math plz help ;-;

    1. Solve the system by any method: 2x-5y=-1 2x-y=1 How many solutions does the system of equations below have? Explain your answer. y=3/5x-1 y=6/10x+3 plz help me ;-; i don't understand how to do this, sorry ;-;
  56. math (surface area)

    i know the formula of a rectangles surface area is SA= 2(lw)+(wh)+(lh), but when the dimensions are : 2a for the height, a for the width, and 3a for the length, how do i solve?
  57. Math HELP!! Who can solve??

    I'm totally confused on these? Which is D = 2zv solved for v? A. v= 2z / D B. V= d / 2z c. V = D - 2z D. V=D / Z Which is Q = 200P/L solved for P? A. P= QL/200 B. P=200L/Q C. P=200QL D. P=200/QL
  58. math

    A persons height is 161 and the persons shadow is 280, and a objects height is 345. Solve by using proportions
  59. Math 4

    There are 20 teachers and 705 students in Corey's school. What is the ratio of teachers to students? How would I solve this problem? PLZ help me! :(
  60. Math

    The perimeter of a rectangle is 21 inches. What is the measure of its width if its length is 3 inches greater than its width?..... Please help me solve this question...
  61. math

    Person's height is 163 and the person's shadow is 290. The objects shadow is 345. Solve by using proportions
  62. math

    two fifth of a pole is in the ground 0.125 is in the water and 4.75m is above water-find the length of the pole how can i solve such problem "4.75 m "
  63. math

    one farm is 82 acres larger than another. together the farms contain 276 acres how larg is each farm? solve using two variables and two equations
  64. math

    Okay so i here is the problem......find the unit rate. I don't remember how to solve for the unit rate. Help me please i have a quiz tomorrow.
  65. math

    one farm is 82 acres larger than another. together the farms contain 276 acres how larg is each farm? solve using two variables and two equations
  66. math

    one farm is 82 acres larger than another. together the farms contain 276 acres how larg is each farm? solve using two variables and two equations
  67. Math

    "Half the measure of the angle is 25 more than one third the measure of the complement. Find the angle" I don't understand how to set up and solve this at all.
  68. college math

    A survey indicated that 3 out of 5 doctors use brand x aspirin. If 2000 doctors were surveyed how many used brand x? please show me how to solve this ?
  69. Math

    I cannot come up with the right answers for my matrix. I need to write as a system of equation and solve the system. 1 2 3 x 1 1 1 1 y = 12 -1 1 2 z 2 The answers I come up with are 31 15 15 when I check these, they will not work, what I am doing wrong?
  70. math

    Solve. Check for extraneous solutions. 1) (/3x+7) = x-1 2) (3/2x)-3=9 Note: (/3x+7) is the square root of 3x plus 7 and (3/2x)-3=9 is 3 times the square root of 2x - 3 equals 9.
  71. math

    Solve. Check for extraneous solutions. 1) (/3x+7) = x-1 2) (3/2x)-3=9 Note: (/3x+7) is the square root of 3x plus 7 and (3/2x)-3=9 is 3 times the square root of 2x - 3 equals 9.
  72. Math

    ten pounds of potatoes cost $2.55. How much will 6 pounds cost? Write and solve a proportion. Justify your steps.
  73. Math

    ( / means absolute value) Solve: 3+/2y-1/>=1. Graph the solution set on a number line. The number line I have is: -5 -4 -3 -2 -1 0 1 2 3 4 5 6 I'm confused on what to do.
  74. Math

    Vinay made a Password that consists of 3 digits. None of the digits are the same. How many possible passwords did Vinay choose from? Please explain how to solve.
  75. math

    Persons height is 165 and the persons shadow is 285. The objects shadow is 345. Solve by using proportions
  76. math

    Two non-negative numbers are chosen such that their sum is 30. Find the numbers if the sum of their squares is to be a maximum. Explanation to solve this would help !
  77. Math

    Don't understand how to solve this problem: 12. A, B, C, and D are points on a line, and the lengths of the line segments are: AB = 12, BC = 4, CD = 7, and DA = 15. Which of the following is a possible order for the points? A.A,B,C,D B. A,C,D,B C. A,D,C,B
  78. math

    Solve. Check for extraneous solutions. 1) (/3x+7) = x-1 2) (3/2x)-3=9 Note: (/3x+7) is the square root of 3x plus 7 and (3/2x)-3=9 is 3 times the square root of 2x - 3 equals 9.
  79. math

    Solve Equation by Adding or Subtract fraction using Addition property of Equality or Subtraction property of equality. x-5/6 = 1/10
  80. Math - Inverse Functions

    Find the inverses of the following functions. y = 3(x - 1)^2, x >= 1 Work: x = 3(y - 1)^2 x = 3(y - 1)(y - 1) x = 3(y^2 - y - y + 1) x = 3y^2 - 6y + 3 And now what do I do!? Please explain and show me how to solve this inverse function! ... Thank you
  81. math

    Solve. Check for extraneous solutions. 1) (/3x+7) = x-1 2) (3/2x)-3=9 Note: (/3x+7) is the square root of 3x plus 7 and (3/2x)-3=9 is 3 times the square root of 2x - 3 equals 9.
  82. Math

    Please help me solve this one. I am looking for 4 digit answers for PLAE and MMSS MAKE+SEAK=PLAE ELKS+ESSK=MMSS
  83. more math

    solve this equation: 6x+7=8x-13 ....plz Tell what you don't understand so that we may help you. Subtract 6x from both sides of the equation and see what you get. Then add 13 to both sides. If you do it right, that will be the answer.
  84. math

    Factor the given expression. a) 6y^2 − 53y − 9 b) Set the expression equal to zero and solve for y. y= (smaller value) y= (larger value)
  85. math

    If side of triangle are in the ratio 3:4:5 and its perimeter is 24 cm, find measure of each side of triangle. How to solve this Questions please show.
  86. math,help

    is this correct solve and graph the solution set 3(x-4) > 7x-9 my steps 3x-12 > 7x-9 3x-7x > -9+12 -4x > 3 (-4x)/(-4) > (3)/(-4) x< -(3)/(4) how do i graph it also well, everything to the left of -.75 is x. so then am i correct or
  87. Math

    A sequence of numbers is defined by the expression a(subscript n) = 3n + n^2 Which sequence corresponds to this expression? A)4, 9, 12, 20 B)4, 10, 18, 28 C)4, 10, 15, 20 D)5, 10 ,15 20 Question: What am I supposed to do here? How would I solve this?
  88. Math

    Tanya is 62 inches tall. She is 17 inches taller than May. Write an equation that can be used to find May's height. Please solve the equation.
  89. Math check my answers

    1. Evaluate. 8d - 10 for d = 4 A.32 B.22*** C.26 D.46 2. write an algebraic expression for the sum of 3 coins and c coins. A.c + 3*** B.c/3 C.3c D.c-3 3. Find the solution of the equation from the given numbers. x - 2 =16: 14, 18, 21, or 12 A.12 B.14
  90. algebra

    What are the intercepting points of y^2=-4x and x^2=y I set both equations equal to 0, but only get x=0 and there is another intercepting point. please help! Graphically, y=x^2 is positive for all values of x, whether positive or negative. The second
  91. algebra 1

    Solve the following problem: Kate bought a car for $20,000. A study shows that a car will depreciate (go DOWN in value) by 15% each year. How much is Kate's car worth after 5 years? a) Formula used: ___________________________________ b) Substitute values:
  92. algebra

    solve 7^5x=23. round to the nearest ten-thousandth also solve in (4x +5)=4 round to the nearest thousandth
  93. Algebra II

    1. 4^x - 3(4^-x) = 8 I got where 4^x = 4 + square root (19), but I can't solve further. The answer is (log (4 + root (19)) ) / (log 4). 2. log (x^2) = (log x)^2 Solve for x Thanks!
  94. PHYSICS

    A 2.00 METER TALL BASKETBALL PLAYER ATTEMPTS A GOAL 10.00 METERS FROM THE BASKET(3.05 METERS HIGH). IF HE SHOOTS THE BALL AT A 45.0 DEGREE ANGLE, AT WHAT INITIAL SPEED MUST HE THROW THE BALL SO THAT IS GOES THROUGH THE HOOP WITHOUT STRIKING THE BACKBOARD?
  95. function

    consider the function g(x)=x^3+5x^2-4x+4.determine: 1)g(37) 2)the value of x between zero and a hundred such that g(x)=145456 how do i do this? 1) put in 37 for x, and compute. 2) put in 145456 in for g(x), and solve for x. for the first one, just
  96. Math

    Mrs. Chans math class contributed 2 dollars and $1 coins to an earthquake relief fund. the number of $1 coins contributed was 8 less than 5 times the number of $2 coins contributed. if class raised total of 160 bucks, how many coins of each type was
  97. Math

    Use the initial condition y(0)=4 and step size h=.25, calculate the backward Euler on [0,1] for the ODE y'=10y-10y^2. Solve the ODE exactly and compute the errors at t=1.
  98. Math

    Mia took a test with 60 multiple-choice questions. Her teacher told her she got 88% correct. A.Write and solve a proportion to figure out how many questions she got correct.
  99. Math

    Can you guys please check my answers? Evaluate x/y for x = 2/3 and y =6/7 1. 7/9 2. 8/10*** 3. 9/12 4. 12/21 Simplify the expression (3/7^2) 1. 3/7 2. 6/14 3. 9/49*** 4. 5/9 What is the simplified form of the expression 7[63 ÷ (52 – 22) – 1]? 1. 10 2.
  100. math

    The sales tax on an item costing $236 is $28.20. What is the sales tax rate to nearest tenth? Write ratio equation and solve it!