Mathematics - 4 December 2007

a√b , just substitute your answer into a and b

2007-12-04 10:29:13 · 4 answers · asked by Johnny C 1

A frozen steak has a temperature of 28 f. It is placed in a room with a constant temp of 70 f. After 10 mins, the temp of the steak has risen to 35 , what will the temp of the steak be after 30 mins?... There's more, but if I can figure out this part... I can do the rest

I thought you would do Newton's law of cooling, but it doesn't work... so I got confused.

Please help me understand how to get a formula for this.

2007-12-04 10:27:37 · 4 answers · asked by Missi R 1

2007-12-04 10:24:47 · 25 answers · asked by Ashley W 2

2007-12-04 10:19:59 · 2 answers · asked by Anonymous

linear equations, math

2007-12-04 10:17:25 · 19 answers · asked by Danilo O 1

What is the integral of |x^2-1|dx on the interval [0,2]

I'd appreciate any help. Thanks.

2007-12-04 10:17:02 · 2 answers · asked by Anonymous

Every day I get onthe computer
I will post a question stating


I'm thingking of a number 1 through 100\

guess the closest and you'll win 10 points

2007-12-04 10:15:03 · 5 answers · asked by beautifuliciousness 1

how would i find an equation in polar coordinates if i am given the cartesian equation (x-1)^2-(y+5)^2=-24

2007-12-04 10:12:12 · 1 answers · asked by ! 2

2007-12-04 10:11:50 · 12 answers · asked by Anonymous

My professor was giving us lecture about this logarithm chapter. He does mention that most important properties for log is - it's never equal to 1 and >o. And all of a sudden he goes like "try to find a solution for log(-1)".
Now I'm trying my best to get something. Can anybody out there help me? Even if you don't know the solution. Give me at least something that you know might be a possibility. Please friends, I need it.
Thanks,

2007-12-04 10:11:03 · 3 answers · asked by R A 4

2007-12-04 10:10:43 · 9 answers · asked by Ashley W 2

Consider the given parabola. x=4y-y^2

The area of the region that lies to the right of the y-axis and to the left of the parabola (the shaded region in the figure) is given by the following integral. (Turn your head clockwise and think of the region as lying below the curve x = 4y - y2 from y = 0 to y = a = 4.)

4y-y^2 dy from 0 to 4

find the area

thanks

2007-12-04 10:09:48 · 1 answers · asked by stars_sun_sky 1

2007-12-04 10:09:22 · 5 answers · asked by Alexander 6

i need a protactor but i dont have one so i need to kow what numbers on on it in order from lert to right

2007-12-04 10:08:43 · 1 answers · asked by Anonymous

So, if you have an obtuse triangle with the coordinates being E(-8.00, 8.00) C(8.00,8.00) and D(0.00, -4.00) (E and D are base angles.) what are the equations to find the circumcenter, centroid and orthocenter? and where do the lines intersect at?

2007-12-04 10:07:53 · 2 answers · asked by kevindrgn 1

Okay, I'm half asleep, here it is:

x=2/(y-1)

how would you make y the subject?

2007-12-04 10:06:27 · 2 answers · asked by Atari 2

2007-12-04 10:05:13 · 2 answers · asked by dr.whooo 2

find the coefficient of x^6 in the Taylor series expansion centered at the origin for the function f(x)= 3+7sinx^2

2007-12-04 09:56:32 · 1 answers · asked by chimstr 1

Use the distance formula to prove that the points (5,7), (4,0) and (2,1) are vertices of a right triangle

2007-12-04 09:54:54 · 4 answers · asked by Hotdivababe 3

First correct answer gets 10 so answer properly!

2007-12-04 09:52:57 · 65 answers · asked by Anonymous

The city of New York is discussing the idea of building a new race track downtown. The track would be circular, with the width of the track being 30 ft. If the circumference of the outside wall of the track is 502.4 ft., and it costs $20 per square foot of concrete, how much would the concrete cost the city?


Please show your work and explain how you got your answer.
This should be an easy problem for you, you can get the best answer just by getting the correct answer! It's easy!!

2007-12-04 09:50:16 · 7 answers · asked by Anonymous

2007-12-04 09:44:01 · 10 answers · asked by Froggygirl1357 2

2007-12-04 09:43:26 · 5 answers · asked by ! 2

Evaluate the intreagl for the moment of inertai about the x-axes for the solid region region lying between the hemisphere z=sqrt(4 -x^2 -y^2) on the xy plane


∫ (from -2 to2) ∫ (from -√(4-x^2 ) to √(4-x^2)) ∫ ( from 0 to √(4 - x^2 - y^2)

for the equation kz(x^2+y^2) dz dy dx

2007-12-04 09:43:21 · 3 answers · asked by Anonymous

2007-12-04 09:41:49 · 7 answers · asked by marypopa 1

determine if the following measurements produce 1,2 or no triangles. solve each triangle that results.
C=35 degrees
a=18.7
c=16.1

2007-12-04 09:33:39 · 1 answers · asked by looneytoon1_2006 1

cosx cscx=2cosx

2007-12-04 09:27:40 · 2 answers · asked by looneytoon1_2006 1

i was doing come candy selling and i never turned it to the school so i decided to have some fum with the money. i had to much fun and came home broke. so give me some help here please

2007-12-04 09:21:30 · 10 answers · asked by brebre231 2

It wouuld be best if it was the smallest possible function

2007-12-04 09:16:00 · 2 answers · asked by confused human 1

I would prefer a Math teacher to answer this question but anyone who understands how to answer my question is welcomed to answer it as well. I am in eighth grade and I have a research paper due in two weeks. The following are the topics:
-The Monte Carlo Method, Buffon's Needle, and other methods of estimating pi
-Conic Sections and their Equations
-Pascal's Triangle and the Binomial Expansion
-Newton's Second Law and Gravity
-Phi and the Golden Ratio
Please explain each topic in 5 or 6 sentences. I have to choose one of them to do my paper on. So far, it seems to me that Pascal's Triangle is the easiest to understand, but I would like a Mathematician's opinion on this. Thanks!

2007-12-04 09:05:39 · 4 answers · asked by α ρℓα¢є ¢αℓℓє∂ мєℓαи¢нσℓу . 6