A community for students.
Here's the question you clicked on:
 0 viewing

This Question is Open

satellite73
 2 years ago
Best ResponseYou've already chosen the best response.0you cannot, at least you cannot using rational numbers

fluffyunicorn
 2 years ago
Best ResponseYou've already chosen the best response.0how do you solve it with quadratic formula? i dont think my answer was right?

Monkeyball
 2 years ago
Best ResponseYou've already chosen the best response.0\[y=0.05x^2x+1 \] \[\begin{array}{*{20}c} {x = \frac{{  b \pm \sqrt {b^2  4ac} }}{{2a}}} & {{\rm{when}}} & {ax^2 + bx + c = 0} \\ \end{array} \]

Monkeyball
 2 years ago
Best ResponseYou've already chosen the best response.0in this case a=0.05 b=1 c=1

satellite73
 2 years ago
Best ResponseYou've already chosen the best response.0if it was me, i would multiply everything by 20 and write \[x^220x+20=0\]

satellite73
 2 years ago
Best ResponseYou've already chosen the best response.0makes life a lot easier to deal with whole numbers instead of decimals

fluffyunicorn
 2 years ago
Best ResponseYou've already chosen the best response.0i know the formula but after i did it it looked wrong i got 1+(sr).8/.1

satellite73
 2 years ago
Best ResponseYou've already chosen the best response.0no it is just easier if it is not clear where i got the 20 from, lets clear the decimal by multiplying everything by 100 you get \[5x^2100x+100=0\] then divide by 5 and get \[x^220x+20=0\]

satellite73
 2 years ago
Best ResponseYou've already chosen the best response.0you really do not want to take square roots of decimals or divide by decimals use whole numbers

fluffyunicorn
 2 years ago
Best ResponseYou've already chosen the best response.0alright thank you!

satellite73
 2 years ago
Best ResponseYou've already chosen the best response.0for \[x^220x+20=0\] it is probably easiest to complete the square because 20 is even i would write \[x^220x+20=0\] \[x^220x=20\] \[(x10)^2=20+100=80\] \[x10=\pm\sqrt{80}=4\sqrt{5}\] \[x=10\pm4\sqrt{5}\]

fluffyunicorn
 2 years ago
Best ResponseYou've already chosen the best response.0And its not factorable right?
Ask your own question
Sign UpFind 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
 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.