Quantcast

Got Homework?

Connect with other students for help. It's a free community.

  • across
    MIT Grad Student
    Online now
  • laura*
    Helped 1,000 students
    Online now
  • Hero
    College Math Guru
    Online now

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

dgo Group Title

In the getting started pdf it gives two practice exercises to do to get you acquainted with IDLE. Here is the quote: "Exercise (this is just for practice, solutions will not be graded or collected in class) Use IDLE to calculate: 1. 23.0 to the 5th power 2. Positive root of the following equation: 34*x^2 + 68*x - 510 Recall: a*x^2 + b*x + c x1 = ( - b + sqrt ( b*b - 4*a*c ) ) / ( 2*a) the first one of course went fine but I'm lost on the second one. googled positive root fwiw but that did not help with this situation. help me?

  • 2 years ago
  • 2 years ago

  • This Question is Closed
  1. dgo Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    if I type the first line into python (lol?) it says syntax error. also, I don't know what is meant by "recall". also what does "x1" on the last line mean? thank you very much! :)

    • 2 years ago
  2. bwCA Group Title
    Best Response
    You've already chosen the best response.
    Medals 2

    x1 is a variable 23 ** 5 or pow(23, 5) http://docs.python.org/library/stdtypes.html#numeric-types-int-float-long-complex number two wants you to find the positive root of the equation that is given and it is asking you to recall the qudratic formula used to find the roots of an equation: this is algebra.

    • 2 years ago
  3. projectbloke Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    to find sqrt(b*b-4*a*c) in the quadratic equation, you'll need to "import math" and use the math.sqrt() function. I was stuck on that for a couple of hours before Google saved me lol

    • 2 years ago
  4. dgo Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    light bulbs goin off like crazy over here!!! so exciting and fun! you guys RULE!!! :) thanks

    • 2 years ago
    • Attachments:

See more questions >>>

Your question is ready. Sign up for free to start getting answers.

spraguer (Moderator)
5 → View Detailed Profile

is replying to Can someone tell me what button the professor is hitting...

23

  • Teamwork 19 Teammate
  • Problem Solving 19 Hero
  • You have blocked this person.
  • ✔ You're a fan Checking fan status...

Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.

This is the testimonial you wrote.
You haven't written a testimonial for Owlfred.