Mathematics - 26 September 2007

AND...

X^2 -9X=0

B^2 - 4B = 32

AND IT SAYS THEIR SHOULD BE "TWO" ANSWERS! HOW IN THE WORLD DO I DO THIS!

2007-09-26 07:39:10 · 4 answers · asked by ♥ ღAngelicaღ♥ 2

find the equation of the line through the point (1, -6) and which is parallel to the line 3x + 2y - 4 = 0


i cant get this. i found out the slope of 3x + 2y - 4 = 0 which is -3. so the slope of this line must be that.
but when i try to verify if (1, -6) is on the line, i don't get an answer of 0, i get 13.

could anyone help me out? thanks

2007-09-26 07:38:51 · 4 answers · asked by plasticbag 2

{u, v, w} is a basis for V, then { u+v+w, v+w, w} is also a basis for V.

2007-09-26 07:15:19 · 3 answers · asked by kondiii 1

2007-09-26 06:29:39 · 5 answers · asked by ELOY C 2

I have to do a bunch of problems on congruence like the following below. I was wondering if anyone could explain how the following is done so that I have an example to look at for the others. Thanks in advance:

Find all incongruent solutions to the following congruence:

6x = 5 (mod 15)

2007-09-26 06:10:08 · 4 answers · asked by Anonymous

What Time Passed Between 7:15 and 10:08?

Write 3 Fraction the same as 7 over 8?

Cancel Down 48 over 52?

Help Please and who can do all 3 Wins and I give top stars for u

2007-09-26 06:03:17 · 12 answers · asked by Kimmy 2

2007-09-26 06:00:18 · 1 answers · asked by Anonymous

2007-09-26 05:59:27 · 6 answers · asked by Anonymous

4sin^2 x +2cos^2 x=3

Sinx=cos 2x

2007-09-26 05:43:57 · 2 answers · asked by MachoMan 4

sequence b(sub n), n=1,2,3... is strictly locally monotone if for every integer k>1 either b(sub k-1) < b(sub k) < b(sub k-1) OR b(sub k-1) > b(sub k) >b(sub k+1).
Prove it is strictly monotone or give counterexample.

2007-09-26 05:41:24 · 2 answers · asked by mandy 1

2007-09-26 05:36:28 · 10 answers · asked by Anonymous

when two resistors r1 and r2 are connected in parallel, the net resistance satisfies the equation: 1/r=1/r1+1/r^2

2007-09-26 05:04:50 · 4 answers · asked by tankwillmsg 1

Question 4
The prob. of stock A rising is 0.3; and of
stock B rising is 0.4. What is the prob.
that neither of the stocks rise, assuming
that these two stocks are independent?
1. 0.42
2. 0.12
3. 0.88
4. 0.44
Question 5
If the above stocks are not independent,
and the prob. of both stocks rising is 0.09,
what is the prob. that neither stock rises?
1. 0.69
2. 0.39
3. 0.42
4. 0.52

2007-09-26 04:35:44 · 4 answers · asked by elgriff_2000 2

Begin graphing f(x)=x^3 (I did) then use transformations of this graph to graph g(x)=-1/2x^3

2007-09-26 04:14:45 · 3 answers · asked by ChillChick 4

what 2 prime numbers multiplied together will give you a 400 digit number for the answer?

2007-09-26 04:11:18 · 6 answers · asked by Anonymous

hi guys my name is jon im form malta.I just started school today and im in form 4.I need help how to study maths coz i have 2 years till my examns i want to do it paper "2A" for my job as a pilot i feel very sad the last result was 37/70 :-s

2007-09-26 03:44:30 · 3 answers · asked by Anonymous

Fink k if the curve y = x^2 + k is tangent to the line y = 2x



I know the answer, but please EXPLAIN why the answer is what it is.

2007-09-26 03:34:27 · 4 answers · asked by BlueEyedGrl 2

A can do a piece of work in 20 days while B alone can do it in 30 days. In how many days can A&B working together do it?

2007-09-26 03:31:44 · 11 answers · asked by as 2

A particle moves in the direction AB with velocity v m/s given by v = 4t - 4, where t is the time in seconds after passing the point B.
(a) If AB = 9m, find the displacement, sm, from A in terms of t.
(b) Explain why initially the particle is moving in the direction BA.
(c) Find the total distance travelled from t=o to t=3.

2007-09-26 03:13:25 · 1 answers · asked by plolol 2

.........{ 0, 0 < t < 1
f(t) = {
.........{ 2t - 2, t > 1

Plz ignore the "......."s! Plus : the three " { "s should be just one big " { ".

Question : Find (Laplace transform of) : L{f(t)}

Please help - I have no idea even where to start here!
Thanks.

2007-09-26 03:04:26 · 1 answers · asked by Anonymous

Question 1
There were six more women on a committee than men. The committee was made up of 30 people.How many women were on the committee?

Question 2
Three consecutive integers have the sum of 153.
What is the first integer?
A.) 50
B.) 51
C.) 52
D.) 49
Question 3
Five times the first of three consecutive even integers is fourteen more than three times the second.
What is the third integer?
A.) The third integer is 10
B.) The third integer is 12
C.) The third integer is 14
D.) The third integer is 8
Question 4
The sum of three consecutive even integers is fifty four.
What is the second integer?
A.) 16
B.) 18
C.) 20
D.) 14
Question 5
An airplane flies at a rate of 356 km/h. The plane travels a total distance of 1424 km.
(Use Distance = Rate * Time for your equation.)
What is the time for this problem?
**please write your time as a number only**

2007-09-26 02:38:45 · 8 answers · asked by Joycelyn C 1

Liquid A have a density of 16 grams/cubic cm.The volume is 200 milliliter.How to find the mass?

2007-09-26 01:57:57 · 6 answers · asked by Anonymous

2007-09-26 01:51:52 · 10 answers · asked by darlene_j0 1

Plz guide me in the following questions, step by step & plz write all important formulas, since my Linear Algebra is not good:

5b-Determine whether the planes are parallel
x-4y-3z-2=0 and 3x-12y-9z-7=0

7b-Determine whether the planes are perpendicular
x-2y+3z=4, -2x+5y+4x=-1

10a-Find parametric equation for the line passing through the given points
(5,-2.4), (7, 2,-4). Answer: x=5+t, y=-2+2t, z=4-4t

11a-Find Parametric equations for the line of intersection of the given points
7x-2y+3z=-2 and -3x+y+2z+5=0 Ans.: x=-12-7t, y=-41-23t, z=t

14a-Determine whether the planes are perpendicular
(-2,1,4).(x-1,y,z+3)=0;(1,-2,1).(x+3,y-5,z)=0

16-Line
x=0, y=t, z=t (-Infinity < t < +Infinity)

a-lies in the plane 6x+4y-4z=0
b-is parallel to and below the plane 5x-3y+3z=1
c-is parallel to and above the plane 6x+2y-2y=3

17-Find equation for the plane through (-2,1,7) that is perpendicular to the line x-4=2t, y+2=t, z=-5t. Ans.: 2x+3y-5z+36=0

2007-09-26 01:43:26 · 2 answers · asked by Anonymous

a) prove that an integer n is a multiple of 9 if and only if the sum of its decimal digits is a multiple of 9. [Hint: Consider n − s, where s is the sum of the digits.]

b) Let n =
(765432101234567011223344556677007766554433221101234567)8.
(Thus n is expressed in octal notation.)
Is n a multiple of 7? [Hint: Use (i) generalized.]

please give some hint on how to do "both" of them.. thanks a lot for whoever that can help..

2007-09-26 01:25:28 · 3 answers · asked by Anonymous

Above question related to mixture and allegation

2007-09-26 01:16:40 · 8 answers · asked by sakira 1

...on the level against resistance proportional to the square if its speed. At what rate would the car have to work to double its maximum speed?

2007-09-26 01:06:02 · 1 answers · asked by Anonymous

Q1_ Evaluate Sin^2 33 + Sin^2 57.

Q2_ If a & b are Zeros of a polynomial P(x)=2x^2 - 7x + 3. Find the value of a^2 + b^2.

Q3_ Which term of A.P. 21, 18, 15, ....... is -81.

Q4_ Find the length of a tangent drawn from a point 13cm away from the center of a circle of radius 5cm.

Q5_ Find the value of m If equation mx^2 +2x + m = 0 has two equal roots.

Q6_ A card is drawn from a pack of cards. Find the probability that is a red face card.

Q7_ 11 good pens are mixed with 5 bad pens. A pen is taken from the lot. Find the probability that is a good pen.

Q8_All three face cards of spades are removed from a well shuffled pack of 52 cards. A card is drawn from remaining pack. Find the probability of getting: A black face card, A queen.

Q9_ On dividing 3x^3 - 2x^2 + 5x - 5 by a polynomial g(x), the quotient & remainder are x^2 - x +2 & -7 respectively. Find g(x).

Q10_ Show that the points (1, -1) (5, 2) (9, 5) are collinear.

2007-09-26 00:48:17 · 3 answers · asked by h.ars_h 2

If for the number zεC is /z-i/=1, prove that 4<=/z+4+2i/<=6


(/..../ is the modulus)

2007-09-26 00:30:32 · 3 answers · asked by Joey 1

Plz help!!!!:

If for the number zεC is /z-i/=1, prove that 4<=/z+4+2i/<=6


(/..../ is the modulus)

2007-09-26 00:07:52 · 2 answers · asked by Joey 1