A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 one year ago
Help if possible!!
What are the approximate solutions of 2x2 + 9x = 8 to the nearest hundredth? (1 point)
x ≈ 1.22 and x ≈ 3.28
x ≈ 0.76 and x ≈ 5.26
x ≈ 1.22 and x ≈ 3.28
x ≈ 5.26 and x ≈ 0.76
anonymous
 one year ago
Help if possible!! What are the approximate solutions of 2x2 + 9x = 8 to the nearest hundredth? (1 point) x ≈ 1.22 and x ≈ 3.28 x ≈ 0.76 and x ≈ 5.26 x ≈ 1.22 and x ≈ 3.28 x ≈ 5.26 and x ≈ 0.76

This Question is Closed

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0now i believe that you start with adding on both sides and then dividing

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Use the quadratic formula to get the answer.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0and that other question poojah and i worked on for 30 mins was wrong

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0\[x = \frac{ b \pm \sqrt{b ^{2}4ac} }{ 2a }\] \[2x ^{2}+9x 8 =0\] a = 2 b = 9 c =8 Plug in the numbers and try it out

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0\[2x^2 + 9x = 8\\2x^2 + 9x8=0\\standard\ quadratic\ eq.\ ax^2+bx+c=0\\ on\ comparing\, we\ have\ a=2, b=9, c=8\\using\ quadratic\ formula\\x=\frac{ b \pm \sqrt{b^24ac} }{ 2a }\\ put\ the \ values\ of\ a,\ b\ c\\we\ have\ x=\frac{ 9 \pm \sqrt{9^24.2.(8)} }{ 2.2 }\\x=\frac{ p \pm \sqrt{81+64} }{ 4 }\\x= \frac{ 9 \pm \sqrt{145} }{ 4}\\x=\frac{ 9 \pm 12.04 }{ 4 }\\x=\frac{ 912.04 }{ 4},\ \frac{ 9+12.04 }{ 4}\\x=\frac{ 21.04 }{ 4},\ \frac{ 3.04 }{ 4}\\x=5.26,\ x=0.76[ nearest\ hundredth]\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0\[please,\ replace\ = by\ \approx\ as \sqrt{145} \ has \ been\ taken\ approximately=12.04\\(nearesst\ hundredth)\]
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.