Real IIC questions

Discus: SAT/ACT Tests and Test Preparation: June 2004 Archive: Real IIC questions
 By Jared (Jared) on Friday, June 04, 2004 - 07:32 pm: Edit

Can someone explain these answers for me...I think a few of them I just don't understand the wording of the question and they might be really easy.

1. If P and Q are different points in a plane, the set of all points in this plane that are closer to P than to Q is:

A) the region of the plane on one side of a line B) the interior of a square C) a wedge-shaped region of the plane D) the region of the plane bounded by a parabola E) the interior of a circle

2. If f: (x,y) ~ (x + 2y, y) for every pair (x,y) in the plane, for what points (x,y) is it true that (x,y) ~ (x,y)? (~ is supposed to be an arrow)

A) The set of points (x,y) such that x=0 B) the set of points (x,y) such that y=0 C) The set of points (x,y) such that y=1 D) (0,0) only E)(-1,1) only

3. If x (sub zero) = 0 and x (sub n+1) = sq. rt. of (6 + x (sub n)), then x (sub 3) =

A) 2.449 B) 2.907 C) 2.984 D) 2.997 E) 3.162

4. If 6.31 (exponent m) = 3.02 (exponent n), what is the value of m/n?

A) -.32 B) .32 C) .48 D) .60 E) 1.67

5. If the 20th term of an arithmetic sequence is 100 and the 40th term of the sequence is 250, what is the first term of the sequence?

A) -50 B) -42.5 C) 5 D) 42.5 E) 50

6. For all x, sinx + sin (-x) + cosx + cos (-x) =

A) 0 B) 2 C) 2sinx D) 2cosx E) 2(sinx + cosx)

7. The radius of the base of a right circular cone is 6 and the radius of a parallel cross section is 4. If the distance between the base and the cross section is 8, what is the height of the cone?

A) 11 B) 13 1/3 C) 16 D) 20 E) 24

Thanks...you can answer any or all...thanks everyone for their help!

 By Satchamp (Satchamp) on Friday, June 04, 2004 - 07:46 pm: Edit

yo dawg.........hmm

1. Use ur imagination........i dunno like draw it on a piece of paper and see all the points between the two points........coz all the points on one side are the answer anyway.
2. Solve simultaneous equations....
coz X+2y= x
and y=y
this means that y=0
3.dude..just count...substitue Xsub0 to find xsub1.......and so on
4. gotta use yo logs.....
5. its just simple calculation.......assume 1st term and common difference and set up 2 equations....an chill.
6. remember sin(-x)=-sinX and the other way for cosine
7. this ones gay.......
i screwd up too
but now i know how to do it
u jsut use Similar triangles...draw diagram join the lines..its all good....
hope this helps..

 By Jared (Jared) on Friday, June 04, 2004 - 08:38 pm: Edit

thanks i guess...

I now understand some of them...can someone else who doesnt think hes black try to explain numbers 1, 4, 5 and 7...thanks

 By Satchamp (Satchamp) on Friday, June 04, 2004 - 08:40 pm: Edit

haha.....dude......there were so many questions!!
i typed shorthand.....really really Short Hand

 By Haruhara (Haruhara) on Friday, June 04, 2004 - 08:41 pm: Edit

jared, that's a horrible thing to say... i can easily tell you to •••• off by laughing at how you can't get these

 By Jared (Jared) on Friday, June 04, 2004 - 08:46 pm: Edit

lol sorry i was just joking around...anyone answer these?