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

reneebbyx3 Group Title

Consider the functions f(x) = x2 − 13 and g(x) = x + 5. What is the value of (f + g)(3)?

  • one year ago
  • one year ago

  • This Question is Open
  1. reneebbyx3 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    the answers are −4 4 −32 8

    • one year ago
  2. timo86m Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    f(x) = x2 − 13 do you mean f(x) = x^2 − 13

    • one year ago
  3. reneebbyx3 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    yes .

    • one year ago
  4. timo86m Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    if so then (x^2 − 13) + ( x + 5) x^2+x-8 add like terms 3^2+3-8 plug in 3 where there are xs =4

    • one year ago
  5. reneebbyx3 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    can you help me with this one : Consider the functions f(x) = 13x2 and g(x) = 7x − 5. What is the value of (f − g)(3)?

    • one year ago
  6. reneebbyx3 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    @timo86m

    • one year ago
  7. timo86m Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    subtract the 2 functions and plug in 3 13*x^2-7*x+5 101

    • one year ago
  8. reneebbyx3 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    I know this is alot but could you help me with this one to ? Consider the functions f(x) = 8x + 2 and g(x) = 5x − 3. What is the value of ( )(4)? Please show all of your work for full credit.

    • one year ago
  9. timo86m Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    of ( )(4) ^ ?

    • one year ago
  10. reneebbyx3 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    f[g(−4)]?

    • one year ago
  11. timo86m Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    f[g(−4)] if this is right and you sure it is that then ooh you plug in the whole 5x- 3 into 8x+2 in the x so 8*(5x- 3)+2 40*x-22 distribute the 8 into 5x and - 3 then add the +2 Plug in - 4 -182

    • one year ago
  12. reneebbyx3 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    woops, its f/g @timo86m

    • one year ago
  13. timo86m Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    f(x) = 8x + 2 and g(x) = 5x − 3 (-4) (8x+2) / (5x-3) just divide then (8(-4)+2)/(5(-4)-3) plug in the -4 where the xs are at 30/23

    • one year 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.