Mathematics - 30 December 2007

p^2 + p - 20 over 4-p
so it looks like this

p^2 + p - 20
----------------
4 - p

2007-12-30 05:28:28 · 6 answers · asked by Anonymous

Gosh Algebra was so long ago. I just saw a problem and figured it out but cant figure out how to get binomials to a problem.

How do you take 2x^2 - x - 6 and get it into (2x + 3) (x-2)

I know how to FOIL and get it into 2x^2 -x -6, but I cant reverse.

Thanks guys... no rude comments please!

2007-12-30 05:26:12 · 5 answers · asked by Anonymous

The inverse of g is a function, but the inverse of f is not a function. Explain why this statement is true.




Find g^-1 (f(3)) to the nearest tenth.

2007-12-30 05:22:36 · 5 answers · asked by Anonymous

I need to know how to express these frequencies (40GHz & 275GHz) using scientific notation, could anybody show me how to do this on a scientific calculator (step by step) please

2007-12-30 05:22:15 · 8 answers · asked by Anonymous

ok. i'm currently failing math ....... over winter break my math teacher gave my a chance to bring it up .. so i ahve this worksheet i ahve to do. i'm really confussed with rotation symmetry. the definition in my book donsen't make sense to me!! could someone brifley explain rotation symmetry and give my an example??

2007-12-30 04:58:22 · 9 answers · asked by ♥Danielle♥ 1

Like you call someone who does science a scientist

2007-12-30 04:52:41 · 19 answers · asked by Anonymous

Which of the following is a linear factor of 2xsqaured - x -6.

Show your work and explain NO Calculators.

A) 2x - 3
B) x + 2
C) 2x +3
D) x - 3

Congrats ahead of time to those who got C) which is the correct answer.

2007-12-30 04:52:03 · 7 answers · asked by innosa 2

1. 56 to 71
2. 127 to 84
3. 20 to 24
4. 44 to 22
5. 16 to 12
6. 10 to 100
7. 20 to 40
8 10 to 50
9. 12 to 16
10. 80 to 100
11. 69 to 117
12 19 to 9
13. 95 to 145
14 88 to 26

2007-12-30 04:38:14 · 5 answers · asked by C C 1

2007-12-30 04:26:58 · 12 answers · asked by misha 1

Thanks for your time.

2007-12-30 04:20:48 · 6 answers · asked by Essien 3

I'm trying to differentiate arcsin3x (with respect to x)
The answer is -24/sqrt(1-(3x)^2) but I can't get it right.

I tried the product rule and got 3x.1/sqrt(1+x^2)+3arcsin

Any chance of showing my the correct steps?

2007-12-30 04:13:19 · 15 answers · asked by biscuit.heads 2

If 2x+2 > Or = 5x+11, then x is

Show your work and explain

2007-12-30 04:09:17 · 8 answers · asked by innosa 2

2007-12-30 04:05:43 · 2 answers · asked by em 2

Esther drove to work in the morning at an average speed of 45 miles per hour. She returned home in the evening along he same route and averaged 30 miles per hour. If Esther spend a total of one hour commutg to and from work, how many miles did Ester drive to work in the morning?

pls list out the steps!

Thanks for your help!!

2007-12-30 04:00:31 · 6 answers · asked by Anonymous

3x+4y=22
2x+5y=24

2007-12-30 03:56:26 · 5 answers · asked by Anonymous

A pebble is dropped into a cal pond, causing ripples in the form of concentric circles. The radius (in feet) of the outer ripple is r(t)=0.6t,where t is the time in seconds after the pebble strikes the water. The area of the circle is given by the function A(r) = pi r squared. Find and interpret (Aor)(t).

2007-12-30 03:51:06 · 1 answers · asked by bejoulais 1

A & B play game where they toss a coin. A starts first. The first one to get five heads wins. What is the probability of A winning? Even if you could give me some pointers to approach this, that will be great.

2007-12-30 03:30:40 · 12 answers · asked by newlex 2

a swimmer plans to swim at least 100 laps during a 6 day period. During this period, the swimmer will increase the number of laps completed each day by one. Whats the least number of laps the swimmer must complete on the first day ?


Im not asking for answer, if someone could just show me how to set up the equation for this question

2007-12-30 03:22:31 · 8 answers · asked by helppmee =] 2

Show that the value of f(0) does not depend on the choice of polynomial and find f(0).

2007-12-30 03:17:14 · 4 answers · asked by Anonymous

i always do maths very slow and make a lot mistake
How can i improve myself in maths study

2007-12-30 03:16:37 · 9 answers · asked by esa 1

-10 > ¦2x +1¦+7

The answer is -2 so does that mean the +7 stays positive being taken over?

2007-12-30 03:13:03 · 2 answers · asked by Anonymous

1. In triangle ABC, if an exterior angle drawn at vertex C measures 45 degrees then angle b
2.Two triangles have altitudes of equal length. If the areas of these triangles have the ratio 3:4 then the bases of these triangles have the ratio
3.

2007-12-30 03:11:30 · 1 answers · asked by MrJ 3

The answer is 4.2... I just dont' know how to get there from the question.

2007-12-30 02:26:53 · 18 answers · asked by Anonymous

please show steps of solving this problem especially the second part.
http://aycu10.webshots.com/image/36729/2005287368351421111_rs.jpg

2007-12-30 02:18:26 · 3 answers · asked by Anonymous

http://en.wikipedia.org/wiki/Unusual_number
http://www.research.att.com/~njas/sequences/A064052

i wrote a little java code and i want to test my answers!
the above link only goes upto 100, does anyone know how i get a list beyond 100?
thanks!

2007-12-30 02:08:53 · 1 answers · asked by Anonymous

1) inverse sin 3x
or
2) inverse sin (3x)

For number (1) without brackets around the answer is apparantely from the markscheme 3/(Squareroot(1-9x^2))
For number (2) with the brackets around 3x the answer is apparantely -24/(squareroot(1-9x^2)

I got the first answer for both of them. I'm assuming the mark scheme is right? Please help!

2007-12-30 01:52:53 · 2 answers · asked by Anonymous

Use properties of logarithms to write each logarithmic in terms of a and b if In2 = a and In3 = b.

(1) In(2/3)

(2) In 0.5

2007-12-30 01:49:42 · 4 answers · asked by journey 1

Integrate with respect to x.

x^-5

2007-12-30 00:24:39 · 3 answers · asked by al 3