Mathematics - 17 December 2007

does anyone know how to do this one.

2007-12-17 13:07:17 · 3 answers · asked by whitenissanzx 2

Something like
3x^2+15x+5

Ok, that one probably wouldn't factor out evenly... But you guys get it, right?

2007-12-17 12:48:18 · 4 answers · asked by Anonymous

A 'snooker' table (measuring 8 metres by 4m) with 4 'pockets' (measuring 0.5m and placed at diagonal slants in all 4 corners) contains 10 balls (each with a diameter of 0.25m) placed at the following coords:
2m,1m...(white ball)
...and red balls...
1m,5m... 2m,5m... 3m,5m
1m,6m... 2m,6m... 3m,6m
1m,7m... 2m,7m... 3m,7m

The white ball is then shot at a particular angle from 0 to 360 degrees (0 being north, and going clockwise).
Just to make it clear, a ball is 'potted' if at least half of the ball is in area of the 'pocket'

Assuming the balls travel indefinitely (i.e. no loss of energy via friction, air resistance or collisions), answer the following:

a: What exact angle/s should you choose to ensure that all the balls are potted the quickest?
b: What is the minimum amount of contacts the balls can make with each other before they are all knocked in?
c: Same as b, except that each ball - just before it is knocked in - must not have hit the white ball on its previous contact (must be

2007-12-17 12:31:53 · 1 answers · asked by Randy Moss 2

from a table of all five-digit numbers. What is the probablity that the number is evenly divisible by 1, 2, 3, 4, and 5?

2007-12-17 12:29:58 · 9 answers · asked by Anonymous

between this curve and the origin:

z^2=xy-1

2007-12-17 12:29:25 · 3 answers · asked by Randy Moss 2

Jordan,Casey, and Michelle are having lunch. Their bill comes to $38.05. Jordan's meal is 43% of the bill,Casey's is 27% and Michelle is 30%. How much does each person owe

Mr and Ms Key went out to dinner. Their bill was 48.93 they want to leave a 20% tip. How much do they leave?

Ann bought a pair of jeans that costs 27.99,a sweater that costs 32.99, and a belt that cost 11.99. The store is having a 15% off sale. How much did Ann pay?

Tim wants to buy a necklace for his mother. The ring costs 74.99, but its on sale for 10% off. David has $69.00. Does he have enough money for the necklace?

Texas has a 6.25% sales tax. What is the total costs for a computer purchased in Texas for $599.00?

If someone can help me explain this to my daughter it would really help me out. Also if you know of any websites that would help her that would be good also. I know how to do some of these with a calculator,but thats not helping her if I cant explain how I got to that number. Thanks

2007-12-17 12:14:18 · 15 answers · asked by Anonymous

Find the inverse function of f(x) = 3 - 2x.

2007-12-17 12:10:33 · 2 answers · asked by Boo M 1

how do u facter the trinomial 16Xsquared - 24X+ 9 ???
I have been trying but i can't seem to get an answer that works! Please help! thanks.
heart you all ((*Ginger*))

2007-12-17 12:08:09 · 3 answers · asked by Anonymous

2007-12-17 12:03:32 · 1 answers · asked by Anonymous

Help i need it by tuesday!!!!!!!!!

2007-12-17 11:57:58 · 1 answers · asked by Erica B 1

log ( 4x+1 / 2x+9) = 0

2007-12-17 11:56:56 · 4 answers · asked by chriskel8706 1

find the altitude of a triangle
givens: slope of AB = -1/4 angle C = (1, -6)
slope of AC is -5/2 Angle B is (5, 2)
slope of BC is -8/-4 (so its 2) angle A is (-3, 4)

2007-12-17 11:52:50 · 1 answers · asked by Krn Pwner 1

Identify all asymptotes, G{x}= x^2-9 / x^2-4



1. Vertical asymptote, x = 2; Slant asymptote, y = x; Horizontal Asymptote, y = 0

2.Vertical asymptote, x = 2, -2; Slant asymptote, None; Horizontal Asymptote, y = 0

3. Vertical asymptote, x = 2, -2; Slant asymptote, none; Horizontal Asymptote, y = 1

4. Vertical asymptote, x = 2, -2; Slant asymptote, y = 1; Horizontal Asymptote, y = 9/4

2007-12-17 11:39:27 · 2 answers · asked by Anonymous

2007-12-17 11:37:55 · 5 answers · asked by ltzoflv 1

2007-12-17 11:34:45 · 5 answers · asked by Another Emily 2

Please help -

Solve: log x + log (x + 9) = 1


1. 0
2. 1
3. 2
4. 3

2007-12-17 11:32:44 · 4 answers · asked by Anonymous

49^x + 7^1-2x = 8

Do NOT give me just the answer, I already know what they are. Just tell me how to do it mathematically. Thank you : )

2007-12-17 11:32:27 · 1 answers · asked by Anonymous

1. The scale of a map is 3 cm=__________Km.
Map:4cm
Actual: 14.7 kn

2007-12-17 11:31:15 · 14 answers · asked by Talya 1

P(drive a small car) = .75
P(drive a big car) = .25
P(on time w/ small car) = .9
P(on time w/ big car) = .6

Given that he was on time what is probability that he drove the small car?

2007-12-17 11:29:46 · 1 answers · asked by Anonymous

find the point of intersection of two of the perpendicular bisectors algebraically

equations: y=4x-1 and y=-1/2x-1/2
tell how u did it please =D

2007-12-17 11:19:16 · 2 answers · asked by Krn Pwner 1

I need to use the full limit definition of the derivative to find the derivative of this function:

f(x) = 2x + 3

Please SHOW WORK!!!

2007-12-17 11:09:22 · 2 answers · asked by Anonymous

Sally wants to cut a piece of ribbon 8 1/2 yards lond into 1/4 yard pieces. How many pieces will sally have when she finishes?

2007-12-17 11:06:44 · 4 answers · asked by brownsuagr569 2

How do I find the derivative of this? Please show your work in answer, I need to understand it:

g(x) = (2x^2 + 4x - 3) ( 5x^3 + 2x + 2)

2007-12-17 11:05:20 · 7 answers · asked by p_kubhakin1980 1

i need to know for a math test tomorrow and i don't have study material!!! help!!!

2007-12-17 11:02:47 · 7 answers · asked by Zoe Z 1

(sinx+cosx)^2-1=sin2x

2007-12-17 11:02:37 · 1 answers · asked by Someone E 1

L = √kp (both k and p are under square root)
If this formula represents the relationship between a plane's length L and the pounds P its wings can lift, where k is a constant of proportionality calculated for a plane. If a plane must support 300,000 pounds and its wings are 180 feet, what is the value of k?

2007-12-17 11:00:12 · 2 answers · asked by calleighismygirl 1

y = (1 - 2^x) / (1 + 2^x)

i only found one at y = -1 but there's suppose to be one at y = 1 as well according to the answer. however if i simply divide top and bottom by 2^x as usually, i can only get the -1 part. can someone show me

2007-12-17 10:59:49 · 3 answers · asked by wendywei85 3

2007-12-17 10:48:59 · 1 answers · asked by Anonymous

2007-12-17 10:48:55 · 9 answers · asked by Alexander 6

implicit differintiate:
y times the square root of x minus x times the square root of y equals 16

2007-12-17 10:45:10 · 2 answers · asked by danielle l 1