Mathematics - 8 September 2006

some questions-
1-absolute value of 2y+3 greater than 7
2-find an equation of the line containing the point (-1,4) and perpendicular to the line whose equation is x-y=6
3-multiply these complex #'s (3+2i)(4-7i)
4-express as a single logarithm: 2/3 log(small a) x-1/2 log(small a)+ 5 log(small a) z.
5-convert to an exponential equation: log(small a) c = 5
6- A pentagon with 5 sides congruent has a perimeter = to that of an octagon with all 8 sides congruent. one side of the pentagon is 2 less than 3x one side of the octagon. what is the perimeter of each figure?
7-real hard 1: Given f(x)=x^2 and g(x)=x+3, find
(f+g)(x), ff(x), fg(x), f (comp function) g(x), and g (cf) f(x)
thanks for all who answer, im stuck, cant you help a dumb girl out?++++please show the work, maybe ill get it thanks

2006-09-08 10:17:27 · 10 answers · asked by lila g 1

ha

2006-09-08 10:17:17 · 5 answers · asked by ducky29904 1

I had a large tree in the middle of my back yard. I wanted to have it cut down but was afraid it might hit my fence. It was 2pm on a clear sunny day. I need to know how tall the tree was i guess but i cant climb the tree (wheelchair bound). I had only a yard stick, a tape measure, and a pencil and paper. In 5 minutes i knew how tall the tree was. Now, please someone tell me how i did it. It's an east math solution........dang, i hope i didnt leave any info out, this question really helped me to like math and know that you really may use it someday.

2006-09-08 10:09:19 · 9 answers · asked by Anonymous

2006-09-08 10:01:03 · 5 answers · asked by thatgirl_angela07 1

2006-09-08 09:13:10 · 10 answers · asked by koky 1

I have an order of operations question in algebra that is stumping me.

The problem is 6[(Zsquared +3 (0+2)]
The value of Z is -4.

These are my steps so far:

6[Zsquared+3(2)]

6 [Zsquared+6]

6[-16+6]

Now I am stuck. Do I get rid of the brackets and the problem becomes 6-16+6, or do I keep the brackets and multiply using the distributive property?

Also, if you see any problems with the work I have done so far, please let me know. Thanks!

God bless!

2006-09-08 08:54:32 · 13 answers · asked by Kiwi 3

I've always been curious how this is done. I've had a lot of math but never seen anything that shows how to do it.

2006-09-08 08:49:56 · 9 answers · asked by duck_marsh 1

2006-09-08 08:31:03 · 9 answers · asked by Anonymous

2006-09-08 08:18:14 · 8 answers · asked by Anonymous

what is a one to one function?
what is an invertible matrix?
given the vector space of a matrix, how can we construct another vector space which is orthogonal to the former vector space?

2006-09-08 08:10:42 · 4 answers · asked by chemical engineer 1

2006-09-08 08:03:44 · 13 answers · asked by naralius 1

2006-09-08 08:03:35 · 12 answers · asked by Diva 2

need to know the average %age

2006-09-08 07:44:46 · 2 answers · asked by ? 2

tanks. But do not give me the formula from perry ( chemical engineers hand book)

2006-09-08 07:27:25 · 5 answers · asked by us m 1

(5x -6y)(5x+6y)

I came up with 0 is that right? If not what am I doing wrong?

2006-09-08 07:16:41 · 19 answers · asked by Mr. Shafto 1

2006-09-08 07:02:07 · 6 answers · asked by guti14a 1

2006-09-08 06:51:14 · 12 answers · asked by Anonymous

2006-09-08 06:44:20 · 2 answers · asked by Laith H 1

2006-09-08 06:28:54 · 7 answers · asked by Bradford G 1

Can you figure out the answer?
A telephone system sales man claims that his product is "5-9's" compliant. This term means that the product will be functional 99.999% of the time. So in a non-Leap year how long will the product not be working? Express your answer in hours, minutes, seconds.

2006-09-08 05:32:10 · 10 answers · asked by Steve P 5

2006-09-08 05:17:50 · 2 answers · asked by xooooo 1

if you where going on a train doing the speed of light and you ran to the front of th train, would you be going faster than the speed of light

2006-09-08 05:10:43 · 12 answers · asked by Anonymous

please be fast

2006-09-08 05:04:53 · 8 answers · asked by xooooo 1

If mathematics is logical, then why does it doesn't make sense to most people?

I guess this question tends to involve a little bit of philosophy. Please do not give lame, pointless or provoking answer.

2006-09-08 04:59:15 · 19 answers · asked by jlryan87 2

2006-09-08 04:51:10 · 22 answers · asked by Hacker 3

(6x + 4x – 10) - (4x - 6x + 4)

2006-09-08 04:49:32 · 11 answers · asked by Anonymous

Something weighing 1.4 tonnes moving at 40 miles per hour crashes into a wall. What is the force of the impact?

(and can you show me how to work out similar questions please?)

2006-09-08 04:48:43 · 8 answers · asked by Xan 3

i am very bad at math and im pregnant and trying to do school work before the baby gets here and it is hard!

2006-09-08 04:23:18 · 10 answers · asked by Mary W 1

A man had to pack a sack of apples into packets but as each
packet had to have exactly the same number of apples he was
having difficulty.
If he packed 10 apples per packet, one packet only had 9.
If he packed 9 apples per packet, one packet only had 8.
If he packed 8 apples per packet, one packet only had 7.
If he packed 7 apples per packet, one packet only had 6.
If he packed 6 apples per packet, one packet only had 5.
If he packed 5 apples per packet, one packet only had 4.
If he packed 4 apples per packet, one packet only had 3.
If he packed 3 apples per packet, one packet only had 2.
If he packed 2 apples per packet, one packet only had 1.

How many apples did he start with?

2006-09-08 04:08:43 · 12 answers · asked by creskin 4

why is it that our math system is based on ten digits (0-9). before we repeat the first digit zero. i would assume that we started, long ago doing math with our ten fingers. what if we had 4 or 6 fingers? and we based our math system on 8 or 12 digits before we repeated the first digit? could we do that? would it work? and would it or would it not be complimentary to our ten digit system?

2006-09-08 04:07:13 · 12 answers · asked by shotgunsherriffs 3