Mathematics - 23 October 2007

if x^2 - 13x + 42 = (x + A)(x + B), then A + B =


Ohh wow.
can someone explain

this is what I started doing

x^2-13x+42=(x- )(x+ )

2007-10-23 13:23:34 · 4 answers · asked by Anonymous

from 82 to 69

2007-10-23 13:22:29 · 10 answers · asked by LOU C 1

Can anybody answer this? I really need an answer ASAP...I will greatly appreciate it...if you can show how you got your answer that would be great also....thanks so much!!!

(2x^3-3x^2-2x+1) / (x^2+1)

2007-10-23 13:21:47 · 1 answers · asked by ☺♠JonasJay♫♦ 5

answer that question for me

2007-10-23 13:21:22 · 5 answers · asked by Anonymous

I would greatly appriciate it if someone could and solve and explain the following problem so I can use it as an example to do all the rest.


Use the diagram to answer these questions.
(diagram link: http://i20.tinypic.com/2ywcmtl.jpg)

1. find the value of x
2. find the value of y
3. find the measurement of angle 1

2007-10-23 13:16:20 · 4 answers · asked by vintage. 2

2007-10-23 13:14:26 · 11 answers · asked by foxy_gurl_20032002 1

A superhero flies 337 m from the top of a
tall building at an angle of 23 degrees below the
horizontal.
a) What is the horizontal component of the
superhero's displacement? Answer in units of
m.

b) What is the vertical component of the su-
perhero's displacement? Answer in units of
m.

2007-10-23 13:12:30 · 1 answers · asked by Sarah B 1

2007-10-23 13:12:29 · 2 answers · asked by imagination_inevitable 1

Anyone able to help me with the following proof?

If f is a continuous function on a compact set, show that either f has a zero or f is bounded away from zero.

thanks

2007-10-23 13:09:22 · 1 answers · asked by mathishard31415 1

This was a problem posted by someone else.
int x * e^(x^3) dx

does this even work? please explain to me...

2007-10-23 13:06:18 · 3 answers · asked by PeteDawg 2

z-(-5z-8z)

2007-10-23 12:59:58 · 5 answers · asked by hee hee hee 1

help me please thankyou

2007-10-23 12:56:33 · 9 answers · asked by Anonymous

*Two Wheels*

One wheel turns at 33 1/3 revolutions per minute. A second wheel turns at 45 revolutions per minute. At some point in time, a mark on each wheel is at the lowest point on each wheel at the same time. What is the least number of seconds until the marks on both wheels are again both at the lowest point at the same time?

Justify your answer and show all work!

This is a problem challenge for school and it is very confusing. i have ideas of how to solve it but i'm not sure how to go about it. This is for extra credit and due tomorrow, 10/24/07, so please try and solve this as soon as you can. Thank You!!!

2007-10-23 12:53:45 · 1 answers · asked by sparkles62190 2

Solve:

cscx+2cotx=0

2007-10-23 12:41:24 · 4 answers · asked by Anonymous

2007-10-23 12:37:49 · 7 answers · asked by Larry F 1

whats the square root of 416? how do you figure it out?

2007-10-23 12:34:25 · 7 answers · asked by leslie 2

2007-10-23 12:29:29 · 16 answers · asked by latricersmall 2

Assume theta lies in quadrant 3 and the terminal side theta is perpendicular to the line y= -4x.
Part 1. Determine sin (theta).
Part 2. Determine sec (theta).

2007-10-23 12:26:07 · 1 answers · asked by aha51806 2

2007-10-23 12:24:27 · 19 answers · asked by Caryn F 3

i need help with my homework. can someone help me.

here is the question:
t4 = 3, t8 = 243 - Find t11

Can you show your work too. thanks

2007-10-23 12:18:37 · 3 answers · asked by Anonymous

(x<5) v (x>9)

v= or

i don't get how to find solution problems with or in them

2007-10-23 12:15:13 · 3 answers · asked by Anonymous

Find the image of (6, -9) under the dilation

please show me how to do this

2007-10-23 12:14:38 · 1 answers · asked by =] 1

Assume X is normally distributed with a mean of 10 and a standard deviation of 2. determine the value for x that solve each of the following:
a) P(X>x)=0.5
b) P(X>x)=0.95
c) P(x d) P(-x E) P(-x
Thanks!

2007-10-23 12:10:59 · 1 answers · asked by Jack 1

Can the following conditional statements be arranged in logical order? If so, what theorem do they prove?
If I can't understand a problem, I get confused while studying it.
If a problem doesn't follow a pattern, then I can't understand it.
If I don't get confused while studying a problem, I can understand it.
If I get confused while studying a problem, then it is getting me trouble.
If a problem is giving me trouble, then it is too hard.

2007-10-23 12:05:39 · 3 answers · asked by Kana Y 1

I got a different answer than someone in my class, a second opinion would be nice. Thanks!

2007-10-23 12:04:39 · 2 answers · asked by Anonymous

okay, it gives you f(x)= xe^(2x) and tells you to find all of the critical points

I set the derivative equal to 0, so I have x(2e^2x)+e^(2x)=0, but I am having trouble solving...help please

2007-10-23 11:59:54 · 1 answers · asked by Mr. Vill 1

Can someone plz help me with these 3 problems.... I really appreciate it thanx....

1) 77x/3 divided by 2/15

2) 1/6x divided by 5/x^2

3) 30x/83 times 47/15

thanx...im kinda stuck on these 3

2007-10-23 11:59:48 · 1 answers · asked by Anonymous

i need help in finding the complement and supplement of angles measured in degrees and radians.
example: 35.5 degrees
example: 5[pi] / 6

2007-10-23 11:56:02 · 3 answers · asked by molly m 1

17. A piece of pipe is 30 and 3/4 inches long. If five pieces, each 4 and 1/3 inches long, are cut from the pipe, how
many inches of pipe remain?
A. 9 and 1/12 inches C. 26 and 5/12 inches
B. 9 and 3/4 inches D. 30 and 3/4 inches



18. Find the difference between the product of 26.22 and 3.09 and the sum of 3.507, 2.08, 11.5, and
16.712.

A. 4.489 C. 47.2208
B. 6.511 D. 58.3108

2007-10-23 11:43:10 · 4 answers · asked by jair a 2

how do i go about figuring out if this is irreducible or not??? someone plz help!

2007-10-23 11:34:09 · 1 answers · asked by Anonymous