Dinjin201

This math problem appeared on a test. I have copied it exactly below. Please solve.

What is the percent? 3 1/4 [HINT: Whole Number]

A. 0.325%

B. 3.25 %

C. 325%

D. 3.250%

If you are a math teacher and or professor PLEASE Cite yourself.

Sometimes, I see a little purple, other times, its bright blue. What causes the color difference?

So, I was curious and decided to create a little poll

What's your favorite romantic position with your significant other (i mean in public - keep it PG).

Do you really like the intertwined hand holding?

What about the head rest on the other person's shoulders?

Stuff like that. Those are examples, feel free to talk about your personal favorites!

Is there an equation that relates the following:

Mass of a weight

Frequency

Spring constant

If the reynolds number for stirred vessels is defined as

Re = (D^2*n*p)/u

D is the blade diameter in meters, and n is the speed of the propellor in hertz. p is the density. What is the u? I'm really confused as to what I plug into the u.

Thanks for answering this (if any of you know any fluids stuff)....

What would the polar equivalent form of this double integral be?

4 √16-x^2

∫ ∫ 2y * dy *dx

0 -√16-x^2

I'm not sure how or where to start with this one.

I'm trying to find a tangent plane to the surface, but it's giving me a ton of trouble. I know that the surface is an ellipsoid.

I need to find the equation of a plane tangent to the surface 2(x-9)^2+(y-1)^2+(z-9)^2=10 at point (10,3,11)

It needs to be in terms of x y and z.

If someone could do this with the steps shown so I can handle similar problems, it would be great. Thanks! :)

Since college started and I haven't had time to go to the gym, I've begun to notice myself gaining a few pounds and putting on some fat. What are some fat burning exercises I can do at the gym? And what are some (nutritionally sound) diets that work?

Ps: I'm willing to go to the gym. I dont need the easy way out, or fad diets... I want to do this the right way.

:) thanks.

Use the Chain Rule to find ∂z/∂s and ∂z/∂t. (Enter your answer only in terms of s and t.)

z = tan(u/v), u = 7s + 2t, v = 2s - 7t

I know that normally, I would take the two partial derivatives of z. Then, I have to apply the chain rule by plugging in the u and v functions, and multiplying by the partial derivatives of u and v.

To find ∂z/∂s = I would use the du/ds and dv/ds partials

To find ∂z/∂t = I would use the du/dt and dv/dt partials

What I wrote above is to the best of my understanding, so I'm really stuck here for some reason. I just don't get this... :/ I keep missing this problem. Could someone please show me how to do it?

Any opinions about deciding between the two? I already know Muay Thai and I wanted to learn a softer style to use in combo, but I can't decide between Aikido and Wing Chun.

I am looking for moonflowers [Ipomoea alba] (the kind that bloom at night) because I really want to give some to my friend. Do florists sell them?? and I know that it grows as a vine, but is there also a potted variety? or some form that I can give to someone as a gift? What about the the other Moonflower [Datura Stramonium]?

I don't want to just give my friend seeds, thought I'll probably include some seeds with the plant.

If not a moonflower, can I find night gladiolus [Gladiolus tristis] somewhere? I want something that blooms under the moonlight. :)

Help and advice would be greatly appreciated. :)

Just out of curiosity... I've heard of red hot, and sometimes hot flames can be blue... can we get flames so hot they are violet?

What is it about a guy that really catches your eye? (yes that rhymes)

I'm simply curious. It could be anything - do you notice hair, eyes, face, smile, clothing, overall looks, muscle tone or muscle tone? What is it that makes you turn and glance at a random stranger??

:)

If a = <1, 1, -1> and v = <2, 3, 4>

I need to find two vectors, w1 and w2 that are:

1) orthogonal to each other.

2) w1 must be in the same direction as vector v <2, 3, 4>

3) both of these rules must be satisfied at once.

Basically, I know that w1 must be a scalar multiple of vector v because there's no other way it can be in the same direction. I also know that the Dot product of w1 and w2 must equal zero I am having a lot of trouble figuring out how to set this one up. Could someone please help me out here... DO NOT give me just a vector answer. I want to learn from how it's set up so I can do similar problems on my own. :)

I've gotten it on some of the pictures I've taken, and I've seen pictures with lens flare in them. What exactly is it though. What causes it to be circular, and what causes multiple circles in the lens flare. Could someone explain exactly what goes when when the light hits the camera lens that causes this effect?

Thanks :) I'm simply curious.

What I'm talking about is using fiber optic lighting to simulate the stars in the night sky by embedding the fibers in my ceiling. I was wondering if anyone knew either a company that can do this, or if I could do it myself. It would also be great if someone gave me a price estimate or just a general ballpark number for what this could cost.

Thanks :)

I'm looking for a picture of a girl in an elegant blue dress. The image seems to have been digitally drawn, and is somewhat surreal.

The girl is in a blue dress on the left side of the image, facing towards the right. A string is tied to her arm, and a butterfly is pulling her along using the string. The background of the image is somewhat dark.

I really wanted to draw my own sketch of the picture, since I came across it while i was browsing last week. Sadly, I have been unable to retrace my steps. If anyone has seen it somewhere, a link would be appreciated :)

Thanks in advance!

All I remember about this anime is the basic plot. It's set in the future and for some reason people have battle suits. But only the girls can use these battle suits. The plot is centered around the one guy who finds out he is able to use one, too.

Thanks in advance.

I found this video, and could anyone tell me what song is playing in the background?

By the way, the video is pretty cool, too :)

http://wimp.com/guysfreerunning/

What is the moment of Inertia for a sphere about a pivot tangent to its surface?

I know that a sphere rotating about its center has a moment of inertia equal to 2/5 MR^2 What if it were rotated about one end?? like taping a ball to a motor and spinning it like it were a propellor (but with only one ball)