GMAT Question of the Day - Daily to your Mailbox; hard ones only
close

It is currently 10 Dec 2018, 00:45
Register
GMAT Club Tests
Decision Tracker
My Rewards
New posts
Unanswered

Dec 10th is GMAT Club's BDAY :-)

Free GMAT Club Tests & Quizzes for 24 hrs to celebrate together!

Close

GMAT Club Daily Prep

Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track
Your Progress

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.

Go to My Error Log Learn more
Close

Request Expert Reply

Confirm Cancel
Events & Promotions in December
PrevNext
SuMoTuWeThFrSa
2526272829301
2345678
9101112131415
16171819202122
23242526272829
303112345
Open Detailed Calendar

  • Free lesson on number properties

     December 10, 2018

     December 10, 2018

     10:00 PM PST

     11:00 PM PST

    Practice the one most important Quant section - Integer properties, and rapidly improve your skills.
    GMAT: Verbal | GMAT: Quantitative | Free

  • Free GMAT Prep Hour

     December 11, 2018

     December 11, 2018

     09:00 PM EST

     10:00 PM EST

    Strategies and techniques for approaching featured GMAT topics. December 11 at 9 PM EST.
    GMAT: Verbal | GMAT: Quantitative | Free
CLICK HERE TO HIDE/SHOW EVENTS

What is the value of 3x^2 - 1.3x -0.9 when x=0.2

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  
  Sort by Date Sort by Kudos  
Search for:
 
Print view
First unread post
Author Message
TAGS:

Hide Tags
Manager
Manager
User avatar
G
Joined: 25 Sep 2018
Posts: 117
Location: United States (CA)
Concentration: Finance, Strategy
Schools: Stern '21, Rotman '21, Jindal '21
GMAT 1: 640 Q47 V30
GPA: 3.97
WE: Investment Banking (Investment Banking)
CAT Tests
What is the value of 3x^2 - 1.3x -0.9 when x=0.2  [#permalink]

Show Tags

New post 27 Sep 2018, 11:03
00:00
A
B
C
D
E

Difficulty:

  25% (medium)

Question Stats:

68% (01:23) correct 32% (01:22) wrong based on 57 sessions

HideShow timer Statistics

What is the value of 3x^2 - 1.3x -0.9 when x=0.2
A)-3.38
B)-2.30
C)-1.04
D)-0.76
E)-0.04
Spoiler: OA

_________________

Why do we fall?...So we can learn to pick ourselves up again



If you like the post, give it a KUDOS!

Senior Manager
Senior Manager
User avatar
P
Joined: 18 Jul 2018
Posts: 474
Location: India
Concentration: Finance, Marketing
WE: Engineering (Energy and Utilities)
Premium Member Reviews Badge CAT Tests
Re: What is the value of 3x^2 - 1.3x -0.9 when x=0.2  [#permalink]

Show Tags

New post 27 Sep 2018, 11:25
Consider x as 2/10 for easy simplification.

Then 3\(x^2\) - 1.3x -0.9 becomes 3*\(\frac{4}{100}\)-1.3*\(\frac{2}{10}\)-0.9 = 12/100-2.6/10-0.9 = -104/100 = -1.04.

C is the answer.
_________________

When you want something, the whole universe conspires in helping you achieve it.

Target Test Prep Representative
User avatar
P
Status: Founder & CEO
Affiliations: Target Test Prep
Joined: 14 Oct 2015
Posts: 4261
Location: United States (CA)
Re: What is the value of 3x^2 - 1.3x -0.9 when x=0.2  [#permalink]

Show Tags

New post 02 Oct 2018, 18:34
Abhi077 wrote:
What is the value of 3x^2 - 1.3x -0.9 when x=0.2
A)-3.38
B)-2.30
C)-1.04
D)-0.76
E)-0.04


Since x = 0.2 we have:

3(0.2^2) - 1.3(0.2) - 0.9

3 x 0.04 - 0.26 - 0.9

0.12 - 0.26 - 0.9 = -1.04

Answer: C
_________________

Scott Woodbury-Stewart
Founder and CEO

GMAT Quant Self-Study Course
500+ lessons 3000+ practice problems 800+ HD solutions

GMAT Club Bot
Re: What is the value of 3x^2 - 1.3x -0.9 when x=0.2 &nbs [#permalink] 02 Oct 2018, 18:34
Print view
First unread post
Display posts from previous: Sort by

What is the value of 3x^2 - 1.3x -0.9 when x=0.2

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  

Moderators: chetan2u, Bunuel, VeritasKarishma, niks18, Gladiator59, generis

Search for:


Copyright

GMAT Club MBA Forum Home| About| Terms and Conditions and Privacy Policy| GMAT Club Rules| Contact| Sitemap

Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne

Kindly note that the GMAT® test is a registered trademark of the Graduate Management Admission Council®, and this site has neither been reviewed nor endorsed by GMAC®.

Main navigation

GMAT Resources

Partners

MBA Resources

www.gmac.com|www.mba.com | | GMAT Club Rules | Terms and Conditions