Alex A

I have a math problem that asks:

Find the equation of the set of all points P so that the distance from P to A(-7,0) is equal to the distance from P to B(-3,-7).

How can I do this? IF I set the distance formula for each equal, I have two variables. This is a calc III vector class, can I do this with vectors?

http://tinyurl.com/klp2fwj

The box is 62 lbs.

I need the minimum force P that would result in the box starting to slide up the incline.

This is what I've got

ΣFy = -pcos(52)-mgcos(17)+N = 0

ΣFx = -psin(52)+mgsin(17) - F = 0

F = μN

So I subbed in

N = mgcos(17)+pcos(52)

ΣFx = -psin(52) + 62sin(17) - μ(62cos(17) + Pcos(52)) = 0 and solve for p. I keep getting the wrong answer. What's wrong with my equations?

A particle moves along the x axis. It is initially at the position 0.290 m, moving with velocity 0.120 m/s and acceleration -0.390 m/s2. Suppose it moves with constant acceleration for 4.20 s.

(a) Find the position of the particle after this time.

I know how to do this.

(b) Find its velocity at the end of this time interval.

I know how to do this too.

===>>>>These are what I really need help with: <<<===

Next, assume it moves with simple harmonic motion for 4.20 s and x = 0 is its equilibrium position. (Assume that the velocity and acceleration is the same as in parts (a) and (b).)

(c) Find its position.

(d) Find its velocity at the end of this time interval.

Someone told it to me the other day... Like someone who always is explaining things. It could be a complement or could be somewhat of an insult.

I'm on craigslist and I want to buy a SATA DVD-RW drive and a 250gb SATA Hard drive. How much should I give him for these? Is $40 a low ball?

So there's this girl that I really like, and I took her out on a date about a week ago. It went well, and we've been talking since then. Today, at school, she came up to me and gave me a note. The note says a lot, but here are some of the key points:

"I've grown up in a completely christian home. God is first in all areas of my life....Part of my religion is that whomever I seriously date needs to hold these same values"

Now, by no means is this girl a prude. She is one of the most amazing girls I have ever met in my life. But religion is VERY important to her, and it is not to me. Should this be a reason not to date? I mean, I really like her, and she mentions how much she likes me in the note. I just don't know what to say to her. What are some things I could say when I talk to her about it tonight?

Ok, so I have this little group of friends, it's just 4 of us. It's me, another guy, and 2 girls. We do everything together.

Homecoming is coming up, and I was thinking about asking one of the girls to homecoming, but I'm worried about what might happen.

Do I have to ask her in a cute way?

Does asking her to homecoming imply that it's kind of a date type thing?

I guess my main question is can I ask a girl to homecoming as a friend?

http://i48.tinypic.com/2hfua2g.jpg

I saw them in China.

is it statistically probable that a properly shuffled deck of cards will be in an order that has never before existed amongst other decks?

Please explain!

is it statistically probable that a properly shuffled deck of cards will be in an order that has never before existed amongst other decks?

Please explain!

1/(sinx+1)+1/(sinx-1)

I got a common denominator, and got 2/((sin^2)x-1)

Now what?

The sum of n positive terms of an arithmetic series is 216. The first term is n and the last term is twice the first term. What is the common difference?

S=(n(a1+a2))/2

an=a1+d(n-1)

An infinite geometric progression has a first term 1, and the sum of all terms is (9/2) times its second term. What possible values could the common ratio have?

I need something that gives me three outputs for one input, as opposed to all the switches that give me 3 inputs for one output that I can switch between. I need to display one computer across 3 televisions.

y-5x=8

I did it this way, but I'm not sure it's right.

rsinθ-5rcosθ=8

rsinθ+rcosθ=-8/5 *This is where I think I messed up*

r(cosθ+sinθ)=-8/5

r=(-8/5)/(cosθ+sinθ)

???

This is on a math competition preparatory packet, so I'm guessing I don't have to use kinematics or convert to SI or anything...

"Disregarding friction, find the force necessary to pull a 200 pound weight up an incline that makes a 20 degree angle with the horizontal. Round to the nearest hundredth of a pound."

(a) 68.40

(b) 182.59

(c) 11.11

(d) 71.37

(e) 154.66

?????

(1+cscx/secx)-cotx=secx