Mathematics - 28 June 2007

1. (11, 3), (9, -1), and (17, 15)
2. (-11, -8), (-6, 10), and (26, -12)
3. (-1, -12), (-6, 19), and (-10, 15)
4. (-17, -12), (5, -10), and (-6, -11)
5. (16, 14), (3, 4), and (42, 34)
6. (-6, -2), (-15, 4), and (-12, 2)
7. (-10, 9), (-14, 9), and (-25, 0)
8. (-6, 2), (16, 12), and (37, 35)
9. (12, -19), (3, 13), and (48, -147)
10. (-11, 3), (-16, 13), and (-1, -17)

2007-06-28 07:22:59 · 2 answers · asked by Anonymous

7. 2x2 - 4x + 1 = 0
8. 3x2 + 2x = 7
9. x2 + 8x + 9 = -7

2007-06-28 07:18:21 · 5 answers · asked by stripedbutsolidband 1

i need your help

2007-06-28 07:14:53 · 6 answers · asked by Anonymous

help me please?

2007-06-28 07:12:01 · 6 answers · asked by Anonymous

Today, we have pints, litres, feet and metres. If you drive, distances are in miles and yards, if you buy furniture it's in millimetres. We have the stupid term of "one pence" and "two pence" instead of "a penny" or "tuppence" and weights measured in grammes.

Notice that commerce chooses to use the smallest measurements hoping the public will believe they are getting a lot for their money.

Kids these days are not so hot at maths. I think they were better at it in the old pounds, shillings and pence days, because they had to think a lot harder when dealing with money.

Ask a car dealer about the petrol consumption of a car and he will give it as say, 30 miles per gallon because it sounds much better than 6 miles per litre.

So is it time to scrap the decimal system and go back to the far more sensible Imperial System?

2007-06-28 07:05:13 · 15 answers · asked by Harry Potter 4

how many meters are in 20 yards and how many centimeters

2007-06-28 06:52:36 · 5 answers · asked by Anonymous

A)
5a + 9
B)
5a + 1
C)
a + 6
D)
a + 9

2007-06-28 06:17:51 · 11 answers · asked by angie_noah06 2

2007-06-28 05:36:45 · 4 answers · asked by 23344 2

Also,
Factor -21x^3 + 49x^2

Can you show me how this is done. I'm quite stuck. Thank You :)

2007-06-28 05:14:11 · 6 answers · asked by kat123 1

2007-06-28 05:05:29 · 8 answers · asked by Anonymous

1. Solve the equation:

4 (7-x) / 3 = x
** Is the answer 4?


2. Find the x- and y-intercepts for the equation:

6x - 36y = 36
** Is the answer (0, -1), (6, 0)?


3. Find the equation of the line through the given points. Write the equation in standard form:

Through (5, -5) and (-1, 2).
** Is the answer 10x - 3y = 4?

2007-06-28 05:03:25 · 5 answers · asked by casper5 3

for every set S & every metric d on S, which of the following is a metric on S?
1)4+d
2)(e^d)-1
3)d-mod(d)
4)d^2
5)sq root of d

2007-06-28 04:57:18 · 3 answers · asked by akash s 1

Can someone tell me the steps to solve this?
x^2=-i
the answer is +-(1-i)/sqrt(2)
but I have no idea how to arrive at that answer and know I'm just missing something silly. Thanks!

2007-06-28 04:32:55 · 2 answers · asked by Markus 1

A vessel is full of a mixture of spirit and water in which there is 17% spirit.

vessel holds 90 litres.


Question :
can we calculate the amount of spirit and water ? how ?

My guess : we said concentration is 17% ..that means in 100 lt water 17 litres spirit and total solution is 100+17=117 litres.

or 17:100 is the spirit and water ratio ...right ?

we know total solution above is 90 litres ,

so spirit is =90*17/117
water is =90*100/117

is this correct ?

2007-06-28 04:21:48 · 3 answers · asked by calculus 1

2007-06-28 04:18:46 · 5 answers · asked by randall_gilmore 1

find a linear or quadratic model for the function.

f(2)=2
f(n)=f(n-1)+3

2007-06-28 04:14:55 · 4 answers · asked by Anonymous

2007-06-28 04:07:17 · 2 answers · asked by tinel 1

2007-06-28 04:04:01 · 11 answers · asked by vincent i 1

Bobs radio shop wants to buy a line of new shortwave radios. Manufacturer A offers chain discounts of 19/10, while manufacturer b offer discounts 18/11. Assume both manufacturers have the same list price. Which manufacturer should Bob buy from?

2007-06-28 04:00:31 · 1 answers · asked by always_smiling98 1

x=4y-2
x=6y+8

2007-06-28 03:44:33 · 5 answers · asked by Carlton B 1

2007-06-28 03:42:26 · 4 answers · asked by tinel 1

2007-06-28 03:41:46 · 8 answers · asked by Anonymous

6x^3/ 8x

and

y^2 - 81/ (y - 9)^2

2007-06-28 03:37:59 · 6 answers · asked by lushay 2

lim y^3 + 8 / y+2
y-> -2


the answer should not be 0/0..

2007-06-28 03:36:12 · 3 answers · asked by chechel 1

Always

Sometimes

Never

2007-06-28 03:32:43 · 6 answers · asked by zerokun4 1

2007-06-28 03:26:47 · 8 answers · asked by tinel 1

Find the integral of sqr(4-x^2) using x =2 sin u

help!!!!

2007-06-28 03:14:48 · 3 answers · asked by Anonymous

A light bulb manufacturer produces bulbs in batches of 50, and it is known from past experience that 5 of each batch will be defective If two bulbs are selected without replacement from a batch, what is the probability that both will be defective? (0.00816)

2007-06-28 03:08:45 · 5 answers · asked by Anonymous

Based on a survey of about 10,000 related questions on this Web site, it appears 49.9999...% of the population believes 1 > .99999..., while 49.9999....% do not. What about the rest of you?

2007-06-28 03:04:44 · 23 answers · asked by Anonymous

2007-06-28 02:41:56 · 10 answers · asked by soon seng a 1