Mathematics - 20 October 2007

x Tan(9/x)
Lim x-> infinity
I know it would be tan(9/x)/(1/x) or x/(1/tan(9/x) but I am not sure which one to use help please

2007-10-20 13:19:32 · 1 answers · asked by Smokey. 6

2007-10-20 13:13:39 · 4 answers · asked by Anonymous

Corollary 4.2 - there can be at most one right or obtuse angle in any given triangle.

2007-10-20 13:07:32 · 2 answers · asked by Sabreen 2

can anyone show me the steps how to integrate ∫csc^3 (x) please

2007-10-20 12:55:55 · 2 answers · asked by Anonymous

the interval is 0 is less than of equal to x and x is less than or equal to 2. the equation is s=t^2-3t+2.

2007-10-20 12:55:54 · 1 answers · asked by xboxturbo 3

I am doing a content analysis project for Psychology and have a question. Let's say that I have four raters who each want to record the number of instances of aggression in a TV show.

Rater 1: 10 instances
Rater 2: 5 instances
Rater 3: 7 instances
Rater 4: 9 instances

How can I calculate the correlation coefficient and the inter-rater reliability of the observers? I did a good amount of research on the subject, but am only a junior in high school, so statistical analysis is not my forte, per se. If anyone could explain how to do this, I'd be more than grateful.

Thanks!

2007-10-20 12:31:10 · 2 answers · asked by Anonymous

2007-10-20 12:29:29 · 2 answers · asked by Anonymous

Also is there an easy method other than trial and error to figure out divisibility for other large numbers?

2007-10-20 12:13:17 · 5 answers · asked by Anonymous

6y
_______
y2-2y-24

Simplify

2007-10-20 12:10:16 · 4 answers · asked by Anonymous

I would like the formula to determine this

2007-10-20 11:43:02 · 4 answers · asked by Brandi 1

OK, i really need help describing this since i ran out of words to say:

Explain why corresponding angles, alternate interior angles, alternate exterior angles, and same-side interior angles (or consecutive angles) are appropriate terms, describing their locations of the pairs of angles.

I know what they are, I just don't know how to describe them. So, if you can help please answer this. Thank You!

2007-10-20 11:38:47 · 1 answers · asked by iluvAJ12 3

The equation

x ^2 − 8x + y ^2 + 4y + 11 = 0

represents a circle.

a) Find its centre and radius.

(b) Find the coordinates of any points at which the circle in part (a) intersects the line y = −x − 1.

2007-10-20 11:38:27 · 8 answers · asked by Anonymous

find all horizontal asymptote for f(x)= 6x/ (sqrt x^2 -3)

plese help me. i dont even know what to do.

2007-10-20 11:30:29 · 3 answers · asked by Anonymous

Is this 80 percent??????

2007-10-20 11:29:12 · 16 answers · asked by Anonymous

True or False?

1.)A binary operation on a set S assigns at least one element of S to each ordered pair of elements of S.
2.) A binary operation on a set S assigns at most one element of S to each ordered pair of elements of S.
3.)A binary operation on a set S may assign more than one element of S to each ordered pair of elements of S.

Can someone tell me why it makes the statement T or F? Thanks!

2007-10-20 11:08:26 · 1 answers · asked by Whiterose7 2

2007-10-20 10:49:34 · 14 answers · asked by Pebble & the Man 3

basically i need to go from ax^2+bx+c=0 to the quadratic formula without using completing the square. any suggestions?

2007-10-20 10:36:04 · 6 answers · asked by HaLo_3 1

And write a line tangent to the graph at x=1

2007-10-20 10:29:18 · 9 answers · asked by Jim 1

lim (1-x+ln(x))/(1+cos(pi x))
x->1

I come up with -1/2pi But I think I am wrong

2007-10-20 10:25:35 · 2 answers · asked by Smokey. 6

v=3 u=<4,-4>

2007-10-20 10:03:24 · 2 answers · asked by fdgsdfg d 1

please help me solve this identity

cos(α+β)cos(α-β)=cos²β-sin²-α

thankyou

2007-10-20 09:59:19 · 1 answers · asked by xyz 1

2007-10-20 09:50:34 · 9 answers · asked by acuraboy1978 2

give the exact value of the expression without using a calculator.

a) csc^-1 (sec(π/3))

b) cot^-1 (-(3^(1-2)/3)

c) tan^-1 (-(3^(1-2)/3)

can anyone please help me solve these and show how to work them out.
Thank you.

2007-10-20 09:43:25 · 1 answers · asked by abc 1

2007-10-20 09:35:12 · 2 answers · asked by carmellabella 1

If you had a word problem that said something like:

If the ( can't remember what it is) Opening is 76 feet above sea level, and the closing is 314 feet below sea level. What is the total lengh( can't remember what the thing is)

What would be the answer, thanks

2007-10-20 09:20:09 · 12 answers · asked by Foretold F 2

A ball is thrown upward from the roof of a building 100 m tall with an initial velocity of 20 m/s. When will the ball reach a height of 80 m?

2007-10-20 09:07:16 · 5 answers · asked by Mommy-fied 5

2007-10-20 09:04:02 · 2 answers · asked by alejandro g 1

2h-6/6 =2/3

write a problem that can be solved by using similar triangles, solve the problem with pictures

2007-10-20 09:01:52 · 4 answers · asked by LuvTheJonasBrothers 2

find the missing side of the right triangle (round to the nearest tenth if neccasary)
side a=4 side b=7 side c= ?
side a=12 side c=15 side b=?
side b=9 side c=20 side a=?
side a=0.6 side b=0.8 side c=?

I think the last one is 1 im not sure tho

2007-10-20 08:58:02 · 4 answers · asked by LuvTheJonasBrothers 2

The equation h = -16t ^2 + 112t gives the height of a narrow, shot upward from the ground with an initial velocity of 112 ft/s, where t is the time after the arrow leaves the ground. Find the time it takes for the arrow to reach a height of 180 ft.

2007-10-20 08:52:01 · 2 answers · asked by Mommy-fied 5