Mathematics - 23 November 2007

i need answers fast!! thanks everyone!!

2007-11-23 07:42:01 · 3 answers · asked by Anonymous

We have had 4 exams so far. we have 3 left including the final as two of the three. each exam was worth 125 pts the final is 250. On the 4 exams I recieved: 82%,82%, 60%, and 78%. How do I plug in these numbers into an inequality to find the minimum number of points needed on the subsequent exams for an A, B, C, D?

2007-11-23 07:40:55 · 3 answers · asked by Rhiannah 1

2007-11-23 07:34:20 · 4 answers · asked by Anonymous

2007-11-23 07:15:13 · 3 answers · asked by nafiseh g 1

Thanks

2007-11-23 07:07:25 · 20 answers · asked by germanmonkey1 1

Thanks

2007-11-23 07:06:50 · 6 answers · asked by germanmonkey1 1

at 12:00 helicopter A sets off from O with a velocity vector of
(72i + 96j) kmh^-1 and helicopter B sets off at 12:20 with velocity vector (144i+ 42j) kmh^-1. what are the position vectors of A and B at 13:00?

2007-11-23 06:57:36 · 2 answers · asked by Anonymous

I need to use the limit:

lim [ f (x+h) - f (x) ] / h
h->0

2007-11-23 06:57:06 · 1 answers · asked by suchilewey 1

2007-11-23 06:49:14 · 10 answers · asked by Darnell J 1

A helicopter, A, sets out from O and flies with speed 120 kmh^-1 in direction 3i + 4j. Find the velocity vector of A

2007-11-23 06:47:20 · 3 answers · asked by Anonymous

2007-11-23 06:39:31 · 3 answers · asked by Susie T 1

2007-11-23 06:39:06 · 6 answers · asked by Alexander 6

perform each of the following multiplications or divisions and simplify your answers. assume that no denominators equals zero.

2007-11-23 06:38:45 · 6 answers · asked by ernest 1

2007-11-23 06:33:54 · 6 answers · asked by nafiseh g 1

plz hurry :D i wanna know his full name .thnx

2007-11-23 06:32:52 · 3 answers · asked by ulter of anger 1

2007-11-23 06:32:33 · 4 answers · asked by nafiseh g 1

if it is irrational find two consecutive integers between which its graph lies on the number line

2007-11-23 06:25:58 · 7 answers · asked by Anonymous

if it is irrational find two consecutive integers between which its graph lies on the number line. -81

2007-11-23 06:23:43 · 1 answers · asked by Anonymous

Anything to the zero-th power is zero, but zero to any power is one, so what does this mean for zero to the zero-th power?

2007-11-23 06:09:55 · 5 answers · asked by soccermonster 1

I need some homework help. I'm supposed to solve the following equations by completing the square and solving for x. A thorough explanation along with the answer would be greatly appreciated. :)

2x^2-24x+2= -62

and

x^2+x+1=7/4

2007-11-23 06:08:36 · 3 answers · asked by anonymous 1

2007-11-23 06:04:54 · 3 answers · asked by Anonymous

Multiply. (–2.5)(20)

I got -50, is this correct?

2007-11-23 06:00:49 · 4 answers · asked by Anonymous

2007-11-23 05:58:58 · 1 answers · asked by ernest 1

how to i answer this sort of question? :
Investigate the relationship between a and be if:
(3a)b = 2a + b
I don't understand how to answer this question.
P.S the a and the b are supposed represent indices but i couldnt get a symbol similar so i just put a and b.
Please help!

2007-11-23 05:51:30 · 8 answers · asked by Anonymous

The length of c of the hypotenuse of a right triangle is a function of the length of a and b of the legs. State a rule for the function c(a,b). Thanks a lot for the help.

2007-11-23 05:50:18 · 3 answers · asked by Gabe E 1

I realize that each one is n^3 but i don't know why all the even numbers are positive and the odds are negatives...please help?

2007-11-23 05:50:17 · 4 answers · asked by Anonymous

answer but i also want to know how it is done

2007-11-23 05:49:50 · 3 answers · asked by MEMORY YOU 1

This problem is kinda difficult, I haven't got a proof so far:

Let P be a polynomial of degree n, with real coefficients, such that P(x) is in [-1, 1] for every x in [-1, 1]. Show that P'(x) is in [-n^2 , n^2] for every x in [-1, 1].

I think the solution has something to do with Chebyshev's polynomials.

2007-11-23 05:45:25 · 3 answers · asked by Steiner 7

I think b and c

2007-11-23 05:44:14 · 3 answers · asked by blondie42 1

Give the domain, range, and zeros of the function f(x)= the square root of x^2 -16. Thanks in advanced for the help.

2007-11-23 05:39:19 · 6 answers · asked by Gabe E 1