mathematics

If Dy/Dx =6x^2 + 15x^4 and. Y=7 when x=2 ,find Y

  1. 👍 0
  2. 👎 0
  3. 👁 153
asked by benjieo
  1. dy/dx = 6 x^2 + 15 x^4
    then
    y = 2 x^3 + 3 x^5 + c
    find c
    7 = 2(8) + 3(32) + c
    7 = 16 + 96 + c
    c = -105
    so
    y = 2 x^3 + 3 x^5 - 105

    1. 👍 0
    2. 👎 0
    posted by Damon

Respond to this Question

First Name

Your Response

Similar Questions

  1. Algebra

    I need help trying to put the correct vocabulary words when solving this problem such as grouping, factor, prime factor, GCF, and perfect square, and please check and see if I am doing this correctly. 15x^2+31x+2 In my last

    asked by Lisa on August 10, 2014
  2. Algebra

    I need help trying to put the correct vocabulary words when solving this problem such as grouping, factor, prime factor, GCF, and perfect square, and please check and see if I am doing this correctly. 15x^2+31x+2 In my last

    asked by Lisa on August 10, 2014
  3. Math

    f(x)=13x^2 -15x-14 g(x)=15x^3+14x^2-15x+12 find f(3) × f(10) + f(-7) × g(9)

    asked by John on December 27, 2013
  4. Math

    f(x)=13x^2 -15x-14 g(x)=15x^3+14x^2-15x+12 find f(3) × f(10) + f(-7) × g(9)

    asked by Miley on December 27, 2013
  5. Math

    William solves the equation 5(3x-2)=15x-2. How many solutions does he find? A.0 solutions B.1 solution C.2 solutions D.Infinitely many solutions I'm only up to making it to: 15x-10= 15x-2 I was also wondering if I did anything

    asked by Rabie on April 2, 2015
  1. Math

    Ms.lynch has 21 coins in nickles and dimes.Their total value is $1.65. How many of each coin does she have? 21 - ( 0.05x + 0.10x)=1.50 21- 0.15x = 1.50 0.15x=21-1.50 0.15x=19.5 ------ 0.15 = 19.5/ 0.15 x=130 ??????

    asked by verna on March 22, 2016
  2. math

    Solve by elimination 5x+y=2 3x+y=1 This is what I got : 3(5x+y=2) -5(3x+y=1) 15x+3y=6 -15x-5y=-5 -2y=1 2 2 Y=1/2 15x+3(1/2)=6 15x+3/2 =6 15x/15= 9/2 /15 X=3/10

    asked by Please help on March 23, 2014
  3. Math?

    Which expression is equivalent? −5(−3x − 6) A) 15x + 30 B) 15x − 30 C) −15x + 30 D) −15x − 30

    asked by Anonymous on November 1, 2017
  4. Math to hard please help

    Add or subtract (4x^2+15x-3)-(3x^2+5) A. 7x^2+15x-8 B. x^2+12x+2 C. x^2+15x-8 D. 7x^2+8 Please help me. Thanks

    asked by Anono on May 11, 2015
  5. math calculus

    (24x^3-54x^2-15x)/(6x^2-15x) i don't factor number from whole equation way i do it is find number that add to give me -54 and multiply to give -360. the number i get -60 and +6. so i do this: 24x^3-60x+6x-15x i factor this further

    asked by Shreya on January 4, 2012
  6. maths, variations checking!

    question: given that y is inversely proportional to (x-1), A) express y in terms of x and a constant k b) give that y=5 when x=3, find x when y=25 answer: A)y=-k(x-1) y=-kx+k B)y=5, x=3, k(constant)=3x5 k=15 25=-15x+15 10=-15x

    asked by hayley on December 18, 2007

More Similar Questions