Mathematics - 18 August 2006

1. What is the y-intercept of 12x + 4y = 10

a. 2.5
b. -3
c. 4
d. -12

2. Calculate the equation of the line between the points (-6, -1) and (2, -1).

a. y = -1
b. x = -1
c. y = -8x - 1
d. y = -x - 8

3. Write the equation of the line with a slope of 3/7 passing through the point (9, -2).

a. 2x -9y= - 3/7
b. y= 3/7 x +9
c. y= 3/7 x -2
d. 3x - 7y = 41

10 points to whoever gets them correct first! Thanks!

2006-08-18 06:35:31 · 6 answers · asked by Anonymous

In a certain village, there are 50 couples. As it turns out, everyone in the village is having an affair. This despite a particularly gruesome custom which requires a wife, upon discovering that her husband is having an affair, to kill him the following morning. Even more oddly, the women in the town talk quite freely about their activities! In fact they are all perfectly aware that any woman who is having an affair will tell EVERY other woman in the village except, of course, for the wife of the man with whom they are having the affair. Yet life there goes on quite peacefully since no woman can know for sure that her husband is actually having an affair. One day, a well revered wise man visits the village and announces that someone is having an affair. What happens after this?

2006-08-18 06:29:03 · 8 answers · asked by amit k 1

Can you help me with this and explain how you got the answers? Thanks!

1. Write the equation of the line perpendicular to 9x + 2y = 18 and passes through the point (1, 4).

a. 9x - 2y = 1
b. 9x + 2y = 17
c. 2x - 9y = -34
d. 2x + 9y = 38


2. Write the equation of the line parallel to x = -16 and passes through the point (9, -10).

a. y = -6
b. y = -10
c. x = 9
d. x = -10


3. Determine if the lines 9x - 2y = 16 and 2x - 9y = -18 are parallel, perpendicular, or neither.

2006-08-18 06:28:13 · 6 answers · asked by Anonymous

i would like to know the math formula to figure out how to lets say figure the cost of keeping a 60 watt light on for 24 hours

2006-08-18 06:07:28 · 5 answers · asked by dagojoe64 1

I mean not a fraction like dividing 2 by 3 but rather
2
__

3

like a fraction.

2006-08-18 06:04:55 · 9 answers · asked by Aint No Bugs On Me 4

Can you solve these, and explain how you got the answers too?Thanks!

1. How many distinct diagonals does a hexagon have?

2. How many sides would a regular polygon have if each interior angle measures 162°?

3. How many angles would a regular polygon have if each exterior angle measures 5°?

2006-08-18 05:31:48 · 11 answers · asked by Anonymous

correct answer
m^2 - 3 + m - 7m + 12
m^2 - 6m + 9
m^2 - 3m - 3m +9
m(m - 3) - 3(m - 3)
(m - 3) (m - 3)
(m - 3)^2

why not
m^2 - 3 + m - 7m + 12
m^2 + 9 - 6m
m^2 + 9 - 3m - 3m
m^2 - 3m + 9 - 3m
m(m - 3) + 3(3 - m)
(m + 3) (m-3)
m^2 3^2

what was the mistake for the 2nd working?

2006-08-18 05:28:20 · 16 answers · asked by Stephanie K 2

2006-08-18 05:18:25 · 24 answers · asked by skyalex2310 1

He will think of a natural number, and you can have one guess at it each day. (Once he has thought of his number, he will never change it.) If you guess it, he'll let you out. Will you get out? (Remember - you have eternity...) Explain.

2006-08-18 05:17:27 · 20 answers · asked by amit k 1

2006-08-18 04:51:01 · 6 answers · asked by john a 2

Multivariate Calculus

2006-08-18 04:46:31 · 5 answers · asked by joker 2

2006-08-18 04:27:06 · 13 answers · asked by jiaceyril 2

John plays a game for 60 minutes. For the first 20 mins he has a 1/2 chance of winning and for the last 40 mins he has a 1/5 chance of winning. What is the probability that John wins the game in the hour?

2006-08-18 04:21:45 · 11 answers · asked by Anonymous

If side a = 45º, side b = 90º and side c = 90º, How can I devide this spherical triangle into 3 equal areas, in relation from angle B in degrees to longitudes in degrees of side b?

2006-08-18 03:50:01 · 8 answers · asked by Sixto D 3

Barbara Riedell earns a 5% commission on appliances she sells. Her sales last week totaled $9400. Find her week's earnings.

2006-08-18 03:18:18 · 16 answers · asked by thotfulcute 2

2006-08-18 03:17:05 · 18 answers · asked by Anonymous

2006-08-18 02:22:59 · 39 answers · asked by Abraham O 1

Think about it stupid!

2006-08-18 01:43:13 · 20 answers · asked by ! 1

give me 5 examples for this question to teach for the children with special needs

2006-08-18 01:41:46 · 2 answers · asked by Anonymous

Pl help me?

2006-08-18 01:24:27 · 30 answers · asked by Anonymous

I gave each of my four children a number of pound coins and that was all money I had. To the first I gave some, to the second the third of what remained, to the third 5/8 (five eighth) of what remained and to the fourth the balance which equals 2/5 (two fifths) of the first child share. The total money I had was less than 50 pounds. How many pounds did I have and how much did each child get?

2006-08-18 01:04:32 · 19 answers · asked by Clinkit 2

2006-08-18 00:58:07 · 20 answers · asked by gin 2

a. Graph the depth of the water in the vase as a function of time.
What does the graph look like?

b. Does the function have any extrema?

2006-08-18 00:53:30 · 4 answers · asked by tjhauck2001 2

f(x) = (10)/ (x^2 + 1) on the interval [-1,2].

2006-08-18 00:48:18 · 5 answers · asked by tjhauck2001 2

i ve a sis whose in college and am in school...the prob is tat i feel like i go to school ve fun an come back..everything happened my sis is helping me out!!! itS like the sam happenin wid me in tutions..so i left it..but now the prob has been tooo much tat why the heck...wats the prob wid me tat i cant concentrate in my studies????? SPECIALLY MATHS....WHY????

2006-08-18 00:48:08 · 7 answers · asked by --zEaLoUsMe-- 3

f(m, n) is defined for all positive integers m and n and satisfies
i. f(m, m) = m
ii. f(m, n) = f(n, m)
iii. f(m, m+n) = f(m, n) * (1 + m / n)
Find f(14, 52).

2006-08-18 00:29:17 · 5 answers · asked by Anonymous

2006-08-18 00:02:08 · 17 answers · asked by gshreenath_29659 1