Mathematics - 19 July 2006

3x^2-9x=0

complete the square.
explain & list out steps please.

2006-07-19 12:30:21 · 6 answers · asked by AT 2

Your mission is to accurately measure 9 minutes. You only have two hourglasses at your disposal. One hourglass measures 4 minutes and the other measures 7 minutes. There are two possible answers but I will reward the most elegant solution. You may begin.

2006-07-19 12:03:14 · 21 answers · asked by Anonymous

the problem is 3x^2+14x=5
and i have to solve by completing the square.
help?
can you please tell me the steps because i actually want to know how to do these kinds of problems if i encounter them again. thanks a lot !

2006-07-19 11:55:04 · 11 answers · asked by AT 2

i wants to devide 1 to 81 items worth item1=$1, 2=$2,3=$3......item81=$81 . devide $s between 9 people and everybody should get equal dollars and equal items.

2006-07-19 11:32:24 · 7 answers · asked by kam 1

2006-07-19 11:02:45 · 15 answers · asked by Anonymous

A. exactly two inflection points, one local maximum and no local minimum
B. exactly three inflection points, one local maximum and one local minimum
C. exactly four inflection points, two local maxima and one local minimum
D. no inflection points, no local maximum and no local minimum
E. properties not described above

2006-07-19 10:35:40 · 5 answers · asked by Olivia 4

2006-07-19 10:32:02 · 7 answers · asked by In The Shadows 4

help?? show that the sides are equal

2006-07-19 10:25:53 · 16 answers · asked by Anonymous

f(x) = x2 + 3x + 4.
g(x) = (x2 - 1)(x2 - 4).
h(x) = [f(x)]/[g(x)].



A. none
B. one
C. two
D. three
E. four
F. five

2006-07-19 10:11:52 · 7 answers · asked by Olivia 4

Chelsea is a very independent woman who happens to be blind. She is packing for an overnight trip to the city, where she will be meeting her sister. She will need to pack one set of clothes for the next day. Chelsea doesn't have anyone to assist her in the task. This is no problem when it comes to packing all of her clothes, except for her socks.

In Chelsea's drawer there are five identical pairs of white socks, and five identical pairs of black socks, all jumbled together (not matched into pairs). There are no other socks in the drawer. Chelsea figures she will just grab enough socks to be sure she is getting a matching pair, and then once she has arrived at her destination, she will consult her sister on the color.

QUESTION: How many socks will Chelsea need to take from the drawer to be sure that she is getting at least one matching pair?

2006-07-19 09:56:43 · 25 answers · asked by Anonymous

This question was asked in a TV program in Brazil in other times.

It generates many discursion because has double interpretation!

The person that participated of program doesn't answered because this question was valid 500.000 US$!

Do you know?

2006-07-19 09:54:36 · 50 answers · asked by sir. Palatino 2

I am looking for a way to make a smoothed non-linear regression line with one of these programs. A kernel or median smoothed line would be ideal. Anyone know how?

2006-07-19 09:49:32 · 4 answers · asked by Justin L 2

2006-07-19 09:48:46 · 14 answers · asked by Anonymous

2006-07-19 09:46:28 · 16 answers · asked by Anonymous

2006-07-19 09:42:38 · 21 answers · asked by ? 6

2006-07-19 09:41:36 · 4 answers · asked by Tiona C 1

True zero = the sum of 0 elements = true nothing.
Strange zero = the sum of > 0 elements = 0 with structure.
To have 0 dollars is not the same as to have x dollars and owe x dollars.

2006-07-19 09:39:30 · 3 answers · asked by pysslingen 1

2006-07-19 09:39:30 · 2 answers · asked by Tiona C 1

2006-07-19 09:34:58 · 5 answers · asked by Olivia 4

2006-07-19 09:28:26 · 28 answers · asked by President_Pedro 1

My brain is on off today. Diving from a 3 foot high diving block, you enter the water 4 feet from the base of the wall. How far did you jump altogether?

2006-07-19 08:17:15 · 10 answers · asked by laqitta 1

Theres a tree that is 275 ft high and the base of its trunk has a radius of 16 ft. If the trunk of the tree has a shape between that of a cylinder and a cone, what is the maximum and minimum volume of wood it contains? (round your answer the the nearest cubic foot)

2006-07-19 07:32:05 · 3 answers · asked by laqitta 1

2006-07-19 07:09:01 · 1 answers · asked by Olivia 4

PI: 3.1416

2006-07-19 07:07:17 · 8 answers · asked by ShopGirl 2

I had one in high school in Trigonometry that came up with some funny ones. Here's one:"Rudoph is up on the roof of a house waiting for Santa to huury up and deliver the presents. Down below in the bushes 30 feet away there is a deranged hunter with a rifle. The roof is 40 feet high, and the hunter's angle of trajectory is 30 degees. Will Rudolph be killed?"

2006-07-19 06:44:14 · 10 answers · asked by ? 5

a train 120 m long, travelling at 90 km/hr overtakes another train travelling in the same direction at 72 km/hr and passes it completely in 50 seconds.Find (1) the length of the second train in metres (2) the time they would have travelled at these speeds in the opposite direction.

2006-07-19 06:33:46 · 6 answers · asked by mohnish n 1

2006-07-19 06:30:29 · 4 answers · asked by Olivia 4

-13/1-2x

AND:
Subtract. Express your results in simplest form.


x^2/x+1 - 2x+3/x+1

2006-07-19 06:21:35 · 9 answers · asked by Brandon ツ 3

2006-07-19 06:21:22 · 24 answers · asked by Bryn M 1

2006-07-19 06:07:07 · 5 answers · asked by Olivia 4