BREAKING: Target Test Prep releases Brand New 2026 On Demand GMAT prep course

Redeem
TTP OnDemand GMAT Video Course
Featured Course

Target Test Prep GMAT OnDemand

Scott Woodbury-Stewart’s private virtual classroom — 400 hours of master-class video lessons for the GMAT Focus Edition.

  • 715+ score guarantee — highest in the industry (99th percentile)
  • 52 chapters · 1,500+ lessons · 4,000+ practice questions
  • 400 hours of video · 1,500+ instructor-led HD smartboard lessons
  • 300,000+ students accepted to Harvard, Stanford, Wharton, Booth & Sloan & more
  • 24/7 live support + weekly Zoom office hours with GMAT instructors
  • TTP AI Assist — 24/7 AI-powered virtual tutor for instant help
  • 1,200+ flashcards + AI-powered study assistant & daily calendar
  • OnDemand, LiveTeach & GMAT Bootcamp formats available
  • Also: GRE, SAT Math & Executive Assessment courses
  • MBA Admissions Consulting now available
  • 🏆 2025 EdTech Breakthrough Award: Test Prep Solution Provider of the Year
  • 200,000+ students served
  • 5-day free trial — $0 to start, no auto-billing, cancel anytime
★★★★★ 5.0 (559 reviews)
130-pt guarantee
$0 to start then $127/mo
Start Free 5-Day Trial Read 559 Reviews →

Please help!

Expert replies
Post new topic Post Reply
Previous Topic Next Topic
Junior | Next Rank: 30 Posts
Posts: 20
Joined: Mon Jun 30, 2008 3:28 pm
Thanked: 1 times
by H2O » Tue Jul 15, 2008 9:56 am
# 1 For which of the following functions F is F(x)=F(1-x) for all X?

1. F(x) - 1-x
2. F(x) = 1-x^2
3. F(x) = x^2-(1-x)^2
4. F (x) = x^2(1-x^2)
5. F(x) = x/1-x

The correct answer is 4.

#2 A quarter of a cirlce is drawn. The length of the two straight sides (radii) is 100 each. If the circle is enclosed by a fence, which of the following is closest to the lenght , in feet, of the fence?

Answer is 357.
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Source: — Problem Solving |
Legendary Member
Posts: 829
Joined: Mon Jul 07, 2008 10:09 pmFollowed by: 3 members
Location: INDIA
Thanked: 84 times

by sudhir3127 » Tue Jul 15, 2008 10:04 am
Answer is D

chose the number 2 for x and thus -1 for 1-x only D comes out as correct.
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Junior | Next Rank: 30 Posts
Posts: 20
Joined: Mon Jun 30, 2008 3:28 pm
Thanked: 1 times

by H2O » Tue Jul 15, 2008 10:51 am
Can you please explain further. Did you choose 2 at random and why is D correct? Thank you!
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Senior | Next Rank: 100 Posts
Posts: 91
Joined: Sun Jul 13, 2008 10:36 pm
Thanked: 1 times
GMAT Score:770

by BlueRain » Tue Jul 15, 2008 10:53 am
H2O wrote:Can you please explain further. Did you choose 2 at random and why is D correct? Thank you!
Just to clarify is choice 4, (1-x^2) or (1-x)^2? If it is the first case, then 4 is incorrect.
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Legendary Member
Posts: 572
Joined: Fri Feb 22, 2008 9:25 am
Thanked: 21 times

by reachac » Tue Jul 15, 2008 11:06 am
Quater-> length of arc-> (2*pi*r)/4= 314/2= 157 appro

total fence length 100 +100+157=357
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Junior | Next Rank: 30 Posts
Posts: 20
Joined: Mon Jun 30, 2008 3:28 pm
Thanked: 1 times

by H2O » Tue Jul 15, 2008 12:39 pm
"Just to clarify is choice 4, (1-x^2) or (1-x)^2? If it is the first case, then 4 is incorrect."

I don't know if wrote down choice D (#4) correctly. It might be x^2(1-x)^2. But I'm still not gettng why that is the correct answer.
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Master | Next Rank: 500 Posts
Posts: 102
Joined: Sat Mar 15, 2008 4:03 am
Thanked: 4 times

by wilderness » Tue Jul 15, 2008 12:56 pm
Just replace x by 1-x in 4 and you will get back the same expression
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Post new topic Post Reply
• Page 1 of 1