Quantcast

A community for students. Sign up today!

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

Katieann16

  • 2 years ago

Which of the following are polynomials.

  • This Question is Closed
  1. Katieann16
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    \[A) x^5+x-\frac{ 1 }{ 4 } B)-4c^2-\frac{ 5 }{ c } C)5y+\sqrt{y}+7 D) -2t^4-6t+\]

  2. Katieann16
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    @jim_thompson5910

  3. Katieann16
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    @Mathmuse

  4. Mathmuse
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    I cheated and went to wikipedia but the definition is good "a polynomial is an expression of finite length constructed from variables (also called indeterminates) and constants, using only the operations of addition, subtraction, multiplication, and non-negative integer exponents." pay particular attention to the the very last qualifier of the quote

  5. Katieann16
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    @mathstudent55

  6. Mathmuse
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Which exponents are not integers in the expressions you listed?

  7. Katieann16
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    A & B?

  8. Mathmuse
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    in a) the exponents on you x variable are 5, and 1. both integers in b) the exponents on the c variable are 2, -1. both integers, but one negative. this does not fit the description of a polynomial

  9. Mathmuse
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    identify the exponents in c) and d)

  10. Katieann16
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    So A is one and C?

  11. Katieann16
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    So,A,C,D

  12. Katieann16
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    A & D

  13. Mathmuse
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    right, the exponent of a square root is 1/2, not an integer

  14. Katieann16
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    thank you

  15. Mathmuse
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    while the exponents in d) areall positive and integers

  16. Not the answer you are looking for?
    Search for more explanations.

    • Attachments:

Ask your own question

Ask a Question
Find more explanations on OpenStudy

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.