Math

I have to find the exact value(so in fraction form.. like 1231231/41231 or something) of a^4b^2/c^2 , a = (2/5)^2, b = (8/5)^5 c= (4/5)^10 I'm honestly not sure how to get around to doing it with working

asked by Aaron M
  1. LCD: 3 * 4 * 11 * 7 = 924

    so...

    2/3 = 2(308)/924 = 616/924

    3/4 = 3(231)/924 = 693/924

    2/11 = 2(84)/924 = 168/924

    5/21 = 5(44)/924 = 220/924

    if you can't get the answer from those, then go to your teacher for help...immediately !!

    one problem at a time.



    [307/308]

    posted by Wobb
  2. a^4b^2/c^2 , a = (2/5)^2, b = (8/5)^5 c= (4/5)^10

    a^4 = (2/5)^8 = 2^8/5^8
    b^2 = (8/5)^10 = 2^30/5^10
    c^2 = (4/5)^20 = 2^40/5^20

    a^2b/c = 2^(8+30-40)/5^(8+10-20) = 2^-2/5^-2 = 5^2/2^2 = 25/4

    posted by Steve

Respond to this Question

First Name

Your Response

Similar Questions

  1. Maths, find the Exact Value

    have to find the exact value(so in fraction form.. like 1231231/41231 or something) of 2/3 + 3/4 - 2/11 - 5/21 I'm unsure of the working
  2. pre-calculus

    find the exact value of sin 112.5 in fraction form
  3. Algebra II

    Solve for X. Give exact answer in form of fraction. ln 27+ln(x-8)=ln(9x-8)
  4. Maths

    Solve for x (exact solutions): sin x - sin 3x + sin 5x = 0 ¦Ð ¡Ü x ¡Ü ¦Ð ---------------- Thankyou. I tried find the solutions on my graphics calculator but however, the question is to find the EXACT solution(s) for the
  5. Calculus Infinite Geometric Series

    So this is what Im basically doing, I got how to do Number 1 and 2. This is the way I did it. Im supposed to find the common ration and the sum number. 1. 4 + 2 + 1 + ... The Common ratio is 0.5, so in decimal form it would be
  6. algebra

    solve the exponential equation Express in exact form. 5e^xlog_9 = 11 Is x = (ln11-ln5/log_9 exact form??????
  7. math statistics

    For each probability and percentile problem, draw the picture. A random number generator picks a number from 1 to 9 in a uniform manner. 1) Give the distribution of X. X = 2) Enter an exact number as an integer, fraction, or
  8. MATH !!!!!!!!! HELP

    Find the exact value (either decimal or fraction form) of the first term of an arithmetic sequence if the sum of the first 100 terms is 7099.5 and the sum of the next 100 terms is 20799.
  9. Math help, anyone?

    Solve the proportion. Where necessary, round to the nearest hundredth. Plz help i really need 2 get this in!! 11. 9/10 = x/10 9 *** 90 10 100 12. x/4 = 6/7 168 0.21 28 3.43 13.Write the ratio as a fraction in simplest form. 22:36
  10. math

    Will someone please show me how to do this problem. I have to write this ratios in simplest form. The ratio of 5 3/5 to 2 1/10. Change each of your mixed fractions to an improper fraction, then divide the first by the second.

More Similar Questions