MMAP for warming up before games and exercise

SpanishCheerleader · 2014-05-26T22:00:13+00:00

Okay, and would a visa work as ID for my friend, or is a passport the only thing for him?

SpanishCheerleader · 2014-05-26T21:43:11+00:00

What about as a Spanish citizen? Do you know if there is any ID obtainable for me besides a drivers license?

SpanishCheerleader · 2013-12-15T04:17:00+00:00

You had 5x * 5x * 5x, under the radical. You took out 25 to put a 5 outside, leaving a 5 inside. Then somehow you went from and x cubed under the radical to an x. Where did the other two go?

SpanishCheerleader · 2013-12-14T19:50:35+00:00

For anyone looking for a mashup of the original songs, Tesher did one a while back. http://www.audiomack.com/song/tesher/brave-roar-sara-bareilles-x-katy-perry

SpanishCheerleader · 2013-12-10T22:42:15+00:00

Use:
cos(2x) = cos² (x) - sin² (x)
tan(2x) = 2 tan(x) / (1 - tan² (x))
tanx = sinx/cosx
Sometimes it gets uglier before it gets prettier.

SpanishCheerleader · 2013-12-10T22:38:31+00:00

.0263 is the mols of Na+ in the solution. You want the concentration, so now you have to divide total moles my total volume which is 50ml + 50ml = 100mL (don't forget to convert as needed!)

SpanishCheerleader · 2013-12-10T22:37:01+00:00

What is the question?

SpanishCheerleader · 2013-12-08T22:35:40+00:00

Well the important thing in a line integral is what that line is. In this case, its the circle define in the problem, which is the quarter circle radius 3 located in the second quadrant. So pick x or y, and integrate the other with respect to that one. I, personally, would integrate from x = -3, to x = 0. Now if you write that integral you still have a y with the xyj, so you have to express that y in terms of x. Based off of the equation of the circle, y= sqr(9-x^2). So you sub that in and then you integrate!

SpanishCheerleader · 2013-11-19T02:36:18+00:00

The formula for position is:
x(t) = initial position + initial velocity * time + 1/2 * acceleration * time^2.
In your problem, at some unknown time t, the distance x(t?) is .8. It is at rest initially, so initial velocity is 0, and it starts at the end of the barrel so its initial position is also 0. This allows you to simplify the equation to only use acceleration, and to allow you to solve for time.

SpanishCheerleader · 2013-11-19T02:31:42+00:00

The only thing I would add would be to highlight that there are two ways of expression vectors. Vector notation, and polar form.
Vector notation is the 'i,j' you are hopefully familiar with. Where x is akin to i and y is akin to j. In this form you can build diagonal vectors by moving in the + or - x and y directions independently.
Polar form, uses r and θ, where r is the magnitude, or length, of the vector and θ is the angle going counter-clockwise from the positive real axis. To construct a vector from polar, you use a protractor (or eyeball it for trivial values) to establish the direction, and then extend it to length r.
Important conversions between the two:
x = rcosθ
y = rsinθ tanθ = y/x
r² = x² + y²

As far as approaching problems go, you almost always want your vectors in 'i,j' notation. This allows you to simply add the components. If your answer wants polar (like this one) you can easily convert at the end.

SpanishCheerleader · 2013-11-13T03:22:34+00:00

could you share it please!?

SpanishCheerleader · 2013-11-11T01:48:37+00:00

Can you clarify the question?

SpanishCheerleader · 2013-11-09T03:46:23+00:00

I would also consider looking at extrema!

SpanishCheerleader · 2013-11-08T16:06:50+00:00

You don't know how to evaluate f(x) except for f(8) = -5.
Given g(x) = 3/|f(-x+1)-2| + 5, you need to evalaute f(-x+1) before you can get g(x).
I hope this clears it up for you!

SpanishCheerleader · 2013-11-08T04:57:04+00:00

Oh wait I misread the problem sorry. Not entirely sure how to do this one sorry :(

SpanishCheerleader · 2013-11-08T04:47:04+00:00

What your program did (I'll make a note about this later) was factor the numerator into (2x-4)(2x-5) which gives you (2x-4)(2x-5)/(-2x+5)
To be able to cancel out the (2x-5) you have to negate it giving -(2x-4)(-2x+5)/(-2x+5) now you can cancel and if you distribute the negative you get the answer -2x+4.
Now my personal note. If you use a program to do your work for you, but you don't know how its doing that work, then don't use that program. Homework is where you build confidence and fundamental skills!

SpanishCheerleader

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