Got Homework?
Connect with other students for help. It's a free community.
Here's the question you clicked on:
 0 viewing

This Question is Closed

NoelGreco Group TitleBest ResponseYou've already chosen the best response.1
Get rid of the radicals.
 11 months ago

satellite73 Group TitleBest ResponseYou've already chosen the best response.1
hint:\[ x^5\sqrt{x}=x^{5+\frac{1}{2}}=x^{\frac{11}{2}}\]
 11 months ago

mathcalculus Group TitleBest ResponseYou've already chosen the best response.0
right.. 3x^(11/2)
 11 months ago

NoelGreco Group TitleBest ResponseYou've already chosen the best response.1
That's it, and go with a negative exponent on the second term to avoid the quotient rule.
 11 months ago

mathcalculus Group TitleBest ResponseYou've already chosen the best response.0
+ 4*x^7/2 ?
 11 months ago

mathcalculus Group TitleBest ResponseYou've already chosen the best response.0
i got: 3x^(11/2)+14/x^9/2..
 11 months ago

mathcalculus Group TitleBest ResponseYou've already chosen the best response.0
@NoelGreco
 11 months ago

NoelGreco Group TitleBest ResponseYou've already chosen the best response.1
\[3x ^{\frac{ 11 }{ 2 }}4x ^{\frac{ 7 }{ 2 }}\] Now take the derivative.
 11 months ago

mathcalculus Group TitleBest ResponseYou've already chosen the best response.0
14x/x^9/2
 11 months ago

NoelGreco Group TitleBest ResponseYou've already chosen the best response.1
The derivative of the second term is\[\frac{ d }{ dx }3x ^{\frac{ 11 }{ 2 }}=\frac{ 33 }{ 2 }x ^{\frac{ 9 }{ 2 }}\] I don't know how you're trying to take the derivative, but you simply use the power rule on each term.
 11 months ago

mathcalculus Group TitleBest ResponseYou've already chosen the best response.0
huh?
 11 months ago

mathcalculus Group TitleBest ResponseYou've already chosen the best response.0
from 3x^ (11/2) + 14x^(9/2)
 11 months ago

mathcalculus Group TitleBest ResponseYou've already chosen the best response.0
doesn't the x9/2 down
 11 months ago

mathcalculus Group TitleBest ResponseYou've already chosen the best response.0
@NoelGreco hey sorry to interrupt. but i just needed to figure this out before leaving..
 11 months ago

satellite73 Group TitleBest ResponseYou've already chosen the best response.1
\[\frac{d}{dx}14x^{\frac{9}{2}}=\frac{9}{2}\times 14x^{\frac{9}{2}1}\]whatever that is
 11 months ago

mathcalculus Group TitleBest ResponseYou've already chosen the best response.0
this is my work so far:
 11 months ago

sami21 Group TitleBest ResponseYou've already chosen the best response.1
Before applying the power rule combine the terms as told you previously . \[\Large f(x)=3x^5.x^\frac{1}{2}\frac{4}{x^3.x^\frac{1}{2}}\] combining the terms \[\Large f(x)=3x^\frac{11}{2}\frac{4}{x^\frac{7}{2}}\] \[\Large f(x)=3x^\frac{11}{2}4x^{\frac{7}{2}}\] now Apply the Power rule.
 11 months ago

mathcalculus Group TitleBest ResponseYou've already chosen the best response.0
thank you are you still there @sami21
 11 months ago

mathcalculus Group TitleBest ResponseYou've already chosen the best response.0
i have one question if you dont mind
 11 months ago

mathcalculus Group TitleBest ResponseYou've already chosen the best response.0
what if they ask: derivative of sqrt(6x)
 11 months ago

mathcalculus Group TitleBest ResponseYou've already chosen the best response.0
i dont know why i always messed them up
 11 months ago

mathcalculus Group TitleBest ResponseYou've already chosen the best response.0
i thought it would be like this: = 6x^(1/2) then =3x^(1/2) =3/(x^(1/2)
 11 months ago

mathcalculus Group TitleBest ResponseYou've already chosen the best response.0
@sami21
 11 months ago

sami21 Group TitleBest ResponseYou've already chosen the best response.1
yes that is correct.
 11 months ago
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
 Engagement 19 Mad Hatter
 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.