Heatherer

My sister went to get her hair dyed and it didn't turn out well. If I go to the salon and ask to see accreditation will I be able to see if the stylist is a color specialist?

Find a vector with a magnitude of 1.00 that bisects the angle between the vectors 5.00i + 11.0j and 2.00i − 1.00j. Give your answer in rectangular coordinates.

I converted to polar and got (12.08 , 65.56 degrees) and (2.24 , -26.57 degrees).

I averaged the degrees and got 46 degrees

converted (1 , 46 degrees) and I got

(.69 , .72) which is wrong

another time I did it I got (.94 , .33) which is also wrong

Idk what else to do but I really need help

I know derivatives backwards and forwards. But I keep missing whatever mistake I'm making here. The problem is

A particle follows a path described by the position vector

(–3.0t, 5.0t + t^(3/5), 6.0 + t^2 – 2.0t^(3/4)) m, for t > 0.

What is its acceleration at t = 3.0 seconds? State your answer using unit vector notation.

I know that I have to take the derivative twice for each part of the position vector. I got the first and last one right, but keep missing the middle one for some reason.

so 5.0*t + t^(3/5)

first derivative 5 + 3/5*t^(-2/5)

second derivative 0 - 6/25*t^(-7/5)

substitute t=3

I keep getting -0.052 but the program says that's wrong.

What am I missing?

I don't know why this one problem is getting me because I've gotten the rest of the homework. I just can't get the right answer to this though and it's killing me!

Find a vector with a magnitude of 1.00 that bisects the angle between the vectors 5.00i + 11.0j and 2.00i − 1.00j. Give your answer in rectangular coordinates.

So, to start with, my mom's morals are more relaxed than mine are. She has worked for the same business for nearly her entire life, and knows practically everyone there. She also knows that this type of business tends to bring out the worst in some people. Some of the people my mom knows have done some shady (often blatantly illegal) things. Not many have gotten caught. My mom's philosophy has always been: don't tell me the details, that way when you do get caught I can "honestly" say I had no idea.

This has always rubbed me the wrong way. Personally I've always believed that if I knew that some one was doing something illegal, and it was hurting other people, I would tell. I've always been the type of person who can't in good conscience stand by while someone gets hurt or ripped off.

Well, my mom has never really told me any stories of these shady dealings, mainly because I was too young, but also because I didn't know any of the people involved so she figured I wouldn't care. Today she shared. She basically has information about multiple illegal activities, because her friend Q told her about them. Q is a really good friend of the family. I have known her since I was born, and my mom has been friends with her about as long as she's worked for this business. Q is a pretty messed up person, but she's always been very sweet and her heart is always in the right place- her brain is usually absent though. Q got dragged into all this illegal stuff because of a guy that she is in love with.

My dilemma. It's been on my mind since my mom told me. This guy is doing illegal things that are messing with lots of people. My conscience wants me to tell. But at the same time I know Q would be in a lot of trouble too, and all because she is stupid and a really bad judge of character. I also really don't know any details except who the guy is, and where part of this happens. Q is a great woman, and knowing that I might be responsible for sending her to prison is wreaking havoc with my sense of justice for this awful guy.

This is the first time I've ever faced anything that might cause a friend to potentially go to prison. The worst I've ever had to deal with before is the decision to lie to a cop who questioned me about a friend. Sorry, but I'm not lying to save your stupid butt. No one suspects this guy of all this stuff though. No ones going to come knocking on my door asking if I know anything about it. So do I seek out some one to tell? What would you do?

This probably sounds dumb, but nobody I know is really able to answer my question. It's not something I ever learned about in school, so I don't really know where to get answers.

So considering everything that has been happening, I've been curious about what the purpose of wall street actually is. What do they actually do that makes them so economically important? I don't really understand why one of these big companies collapsing is considered so dire. And how do other countries economies effect each other so much?

If some one could answer me, or point me in the direction of a site or book that could explain things, I'd appreciate that.

So, the thing is I love to carve pumpkins. But that's only something you can do around Halloween.

I've been trying to think of something I could carve that would be similar to carving a pumpkin. Something that is available year round, or at least during a season other than fall.

I know there are artificial pumpkins, but you can't carve (as in just the skin, leaving the flesh) you can only cut.

Ideas would be appreciated.

Ok, so I usually end up freezing all winter because I can't find shirts that fit well. Every time I've tried to buy anything with long sleeves the sleeves are too short by at least an inch. And I really want some long sleeve shirts this year, not to mention a jacket that fits well.

So I need recommendations.

Has anyone else had this problem, and if so, how did you solve it?

I have to sketch a graph, and I'm not sure what this last requirement means.

lim x -> ∞ [G(x) - x] = 0

describe please.

A page of a book is to contain 27 square inches of print. If the margins at the top, bottom, and one side are 2 inches and the margin at the other side is 1 inch, what size page would use the least paper?

Picture:

http://pic90.picturetrail.com/VOL2363/11813548/209...

So I know the area of the print is

27 = L * W

And the area of the page is

A = (L+3) * (W+4)

And I know that if I take the derivative of the area of the page I can find the minimum and that's the answer. But I don't know how to do that since I don't know L or W.

Help please.

Let f(x) = x^5 + 2x^3 + 4x domain (-∞, ∞)

a) prove that f has an inverse g = f^-1

b) evaluate g(7)=f^-1(7)

c) evaluate g'(7)

So I know how to do part A and I did, but I'm getting stuck with B, and therefore C.

This section in the book is really thin, and has all of one example which is no help for this question so I have no idea what I need to do.

Help please.

An upright cylindrical tank is 10 feet in diameter and 10 feet high. If water in the tank is 6 feet deep, how much work is done in pumping all the water over the top edge of the tank?

So I know the basics of how to work this problem, but the only examples I were given involved full tanks. Is there a difference in setting up the problem since the tank is only partially full?

An airplane is climbing at a 15 degree angle to the horizontal. How fast is it gaining altitude if its speed is 400 miles per hour?

So I know what the picture is supposed to look like:

http://pic90.picturetrail.com/VOL2363/11813548/209...

And I'm thinking that equation I'm supposed to use is

tan(15°) = Y/X

And I know how to take the derivative of that equation.

But the only other information I have is dX/dt = 400 mph

So how am I supposed to solve this without knowing any side lengths?

A trough 12 feet long has a cross section in the form of an isosceles triangle (with base at the top) 4 feet deep and 6 feet across. If the water is filling the trough at the rate of 9 cubic feet per minute, how fast is the water level rising when the water is 3 feet deep?

http://pic90.picturetrail.com/VOL2363/11813548/209...

So, I found the sides of the triangle using the Pythagorean theorem.

And I know that V = 1/2*B*H*L

So wouldn't the rate of change equation be

dV/dt = 1/2*B*H*dL/dt + 1/2*B*L*dH/dt + 1/2*H*L*dB/dt

If so, then I know that I'm finding dV and I'm pretty sure that dH is 9, but what are B, dB/dt and dL/dt?

Or am I going in the wrong direction?

I just posted this but I put in the wrong function so here it is again

f(x) = √(3x)

find f '(x) using the limit definition f '(x) = lim as h approaches 0 of [f(x+h) - f(x)]/h

suppose |x|<=2

use properties of absolute values to show that |(2x^2+3x+2)/(x^2+2)|<=8

<= is for less than or equal to

So, I understand all my other hw problems about solving inequalities, I just don't know what to do with this one. So if you could explain the steps I'd be very appreciative.

Take the limit as n approaches infinity of (n^p / e^n) where p>0

The answer in my workbook is 0

where p>0 and n (greater than or equal to) 2

But I have no idea how to get to that.

Steps or an explanation, please and thank you.

When a person rubs some one else's mistake in their face. I can't think of a word for it at all, but I know there is one.

What happens if the bank your money is invested in "fails"?

Is it different for credit unions?

My math book shows the solution to certain problems in limited steps, and I don't get how the jumped from one place to the next. Part of the problem is:

1 + ( X^4 / 2 - 1 / 2X^4 )^2 = ( X^4 / 2 + 1 / 2X^4 )^2

and for the life of me I don't know how to get to that step without just knowing that's what you need.

If you could explain please; thanks in advance.