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

Help1234321 Group Title

HELP!!!!!!!!!!!!!!! Simplify 4^21 ---- 4^7 1. 4^28 2. 4^21 3. 4^7 4. 4^3

  • 2 years ago
  • 2 years ago

  • This Question is Closed
  1. Help1234321 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    @gaby6

    • 2 years ago
  2. Help1234321 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    @sue101

    • 2 years ago
  3. Help1234321 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    @sunlab2015 @surdawi @MicroBot @MATHGEOMETRY8 @Hollywood_chrissy

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

    Always remember that : \(\frac{a^b}{a^c} = a^{b-c} \)

    • 2 years ago
  5. SheldonEinstein Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    Hence, \[\large{\frac{4^{21}}{4^7} = 4^{21-7} = 4^{14}}\]

    • 2 years ago
  6. Help1234321 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    Which operation would you use on the exponents to simplify the expression 57 × 511? Addition Subtraction Multiplication Division

    • 2 years ago
  7. Help1234321 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    Which operation would you use on the exponents to simplify the expression 5^7 × 5^11? Addition Subtraction Multiplication Division

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

    Addition.........

    • 2 years ago
  9. Help1234321 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    Simplify 15^4 ---- 15^5

    • 2 years ago
  10. Help1234321 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    @Miyuru

    • 2 years ago
  11. Help1234321 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    @SheldonEinstein

    • 2 years ago
  12. Miyuru Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    Do subtraction.. :)

    • 2 years ago
  13. Help1234321 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    Simplify 15^4 ---- 15^5

    • 2 years ago
  14. Help1234321 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    wouldnt it be 15^-9??? not a answer

    • 2 years ago
  15. Help1234321 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    its 15^-4 and 15^5

    • 2 years ago
  16. Miyuru Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    Do subtraction like this....\[\frac{15^4}{15^5}=15^{4-5}=15^{-1}\]

    • 2 years ago
  17. Miyuru Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    This answer is for the one you typed before..

    • 2 years ago
  18. gaby6 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    Addition

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

    \[15^{(4-5)}\]

    • 2 years ago
  20. Miyuru Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    \[\frac{15^{-4}}{15^5}=15^{-4-5}=15^{-9}\]

    • 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.