Mathematics - 26 December 2007

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-find TU
How do you do it?

2007-12-26 06:07:28 · 5 answers · asked by suvash k 2

I dont understand this...

If sqrt x-a =b , x >a, which experssion is equivalent to x ?

b^2 -a

b^2+a

b-a

b+a


If you can,please explain why. Thank you.

2007-12-26 05:29:16 · 4 answers · asked by Anonymous

Im totally lost with this problem....


What transformation could be used to make the graph of the equation y=sin x coincide with the graph of the equation y=cos x ?

Translation

Rotation

Dilation

Point Reflection


Thanks!!!

2007-12-26 05:07:39 · 4 answers · asked by Anonymous

2007-12-26 04:57:40 · 6 answers · asked by Anonymous

(one, four, eight) meters ??

2007-12-26 04:56:31 · 4 answers · asked by ♥ lil A ♥ § 1

in equations and expressions there are letters like x y n ... what are they called? please help thankks

2007-12-26 04:55:34 · 7 answers · asked by Anonymous

1. Solve 2x^2 - 3x - 1 = 0

2. express 5 - 2 ln x^3 - 2 ln y as a single logarithm.

3. simplify 2x^2 multiplied by the 5th root of x then all of that divided by x^0.

4. write down all the factors o 15 and hence factorise x^2 - 8x + 15.

2007-12-26 04:50:52 · 5 answers · asked by omar b 1

2007-12-26 04:50:41 · 2 answers · asked by CXfan 4

Hello, Im having difficulties with this problem....

1/3+1/3x
--------------------------
1/x+1/3


the answers are

x+1/ x+3

2

3x+3/x+3

1/3

Please help. Thanks. Also if you can explain how to get the answer. I would appreciate it.

2007-12-26 04:39:36 · 3 answers · asked by Anonymous

x^2+8x+13=0

Thank you so much for the help

2007-12-26 04:36:56 · 5 answers · asked by tiffany_brianne 1

2007-12-26 04:34:42 · 6 answers · asked by Anonymous

2007-12-26 04:27:33 · 4 answers · asked by Latoya G 1

2007-12-26 04:25:02 · 3 answers · asked by Anonymous

(x+8)^2=81

Thank you so much

2007-12-26 04:17:38 · 10 answers · asked by CollegeYearRound 1

I can't believe I have forgotten.....And I recently graduatd with masters...I feel so stupid...How do I work out ratios using

percentages
decimal numbers
fractions

Thanks

2007-12-26 03:24:40 · 7 answers · asked by Anonymous

2007-12-26 03:07:07 · 9 answers · asked by T R 2

A garden has the shape ,where ABDE is a rectangle and such that AE = 40m, AB = 60m while BC = DC = 32 m.?
shape is like:
a******b
*************c
e******d
(i) Calculate the cosine of the angle at C. Use your calculator to find the measure of
this angle to the nearest degree
(ii) Calculate the area of the triangle BCD in m2 correct to two decimal places.
Show your work
(iii) Calculate the area, in m2, of the whole garden (to 2 decimal places).
Show your work
(iv) A fence is to be built around the outside perimeter of the garden. If the cost of the
fence is 2.75 £ per running meter then, calculate the total cost of the fence, to 2
decimal places

2007-12-26 02:52:34 · 2 answers · asked by MASM 1

2007-12-26 02:43:40 · 13 answers · asked by kashish 1

all primes can be divided by themselves e.g 5/5 = 0, 3/3 = 0, so they have a prime factor.
And all composite numbers have at least one prime factor e.g 9/3 = 3

so 1 is kinda weird, is this right?
thanks and merry christmas!

2007-12-26 02:29:56 · 7 answers · asked by Anonymous

2007-12-26 01:42:33 · 9 answers · asked by Amy 1

2007-12-26 01:16:04 · 5 answers · asked by anthony s 1

How do I solve this using l'hopital

lim e^{ln[tan(x)/(x)]/[(x)^2]}
x->0

it reads:

e is the base

this is the power: ln[tan(x)/(x)]/[(x)^2]
ln[tan(x)/(x)] is the numerator
[(x)^2] is the denominator


if you know how to solve this please show all your work!
THANKS!

2007-12-26 00:34:38 · 4 answers · asked by Anonymous

2007-12-26 00:14:40 · 10 answers · asked by m9824562 1