Science & Mathematics - 13 November 2007

I have the answer from the back of the book, what I am looking for is the appropriate eqn., so I can do the problem on my own in the future. Thanks:)

2007-11-13 17:19:05 · 1 answers · asked by Anonymous in Other - Science

Find the relative extrema, if any, of the following function. Use the second derivative test, if applicable. (Enter NONE in any unused answer blanks.)

The relative maximum is( ) at x =
The relative minimum is( ) at x =

2007-11-13 17:17:28 · 1 answers · asked by Anonymous in Mathematics

An 8 ft wall stand 27 ft from a building. Find the length of a beam that will reach the side of the building from the outside of the wall.

2007-11-13 17:15:46 · 1 answers · asked by googoogoo 2 in Mathematics

Find the number of edges in a pyramid with seven faces

2007-11-13 17:13:30 · 4 answers · asked by Anonymous in Mathematics

2007-11-13 17:10:20 · 4 answers · asked by Theava 2 in Mathematics

Afghanistan suffered two major earthquakes in 1998. The one on Feb 4 had a Richter magnitude of 6.1 causing 2300 deaths, and the other one on May 30 measured 6.9 on the Richter scale, killing about 4700 people. How many times more powerful was the deadlier quake?

Please help? I don't even know where to start and have been trying it for hours :(

2007-11-13 17:07:18 · 2 answers · asked by r5091 2 in Mathematics

I never had anybody tell me this until my wife learned this today from someone at work. I couldn't believe it until I tried it. I had my wife go far out of range, and then I called her by cell phone. With the key in her hand, and me by my car door holding the cell phone, she pressed unlock on the key remote and unlocked my door. This is great if you lose your key or leave it in the car, and someone else in your family has an extra key to your car, and you can call them to unlock your door.

2007-11-13 17:07:05 · 8 answers · asked by Waldo Waldo Waldo! 5 in Other - Science

2007-11-13 17:04:01 · 1 answers · asked by charissa d 1 in Earth Sciences & Geology

2007-11-13 17:01:35 · 3 answers · asked by mir 1 in Medicine

2007-11-13 16:59:34 · 5 answers · asked by Anonymous in Mathematics

What are the units of Molarity? How many grams of NaOH are needed to make 0.5 L of .25 M NaOH Solution? How do I do this problem?

2007-11-13 16:57:00 · 1 answers · asked by Christine O 1 in Chemistry

subtract


(5y^2 - 3y +2) FROM (Y-1)

2007-11-13 16:55:36 · 1 answers · asked by cerotevivo2 1 in Mathematics

if yes, please give and example, if no, explain why

please and thank you =)

2007-11-13 16:52:49 · 11 answers · asked by hi. 3 in Mathematics

I'm a clinical laboratory science major and we did blood smears today and looked at them under a microscope of our own blood samples that we drew a few days ago during our venipuncture lab. My blood high a high number of eosinophils. I know this is the type of WBC found in response to allergens and things like that. My professor asked me if I had allergies. I said no. Then he said "I would ask another question, but I don't want to embarass you". What would he have asked that correlates to a high eosinophil count that would have embarassed me?

2007-11-13 16:50:59 · 3 answers · asked by Anonymous in Medicine

2007-11-13 16:46:47 · 2 answers · asked by drin 2 in Mathematics

2007-11-13 16:45:26 · 3 answers · asked by drin 2 in Engineering

sec^2x=(sec 2x)(2-sec^2x)

2007-11-13 16:40:43 · 1 answers · asked by Andrew H 2 in Mathematics

My book says the answer is x=10º + 120ºn or x=50º + 120ºn and I have no idea how to get that answer. Any help is greatly appreciated.

2007-11-13 16:37:43 · 8 answers · asked by AnonymousOne 2 in Mathematics

2007-11-13 16:35:55 · 5 answers · asked by Anonymous in Engineering

check wheter the value of the variable is a solution of the equation.if its not,find the solution.

1.9=s+5
s=14
--------------
2.-42=-14b
b=3
--------------
3.m divided by -2=12
m= -24
-------------------------------
4.n divided by -6= negative 8 (-8)
n= -48
--------------------------------------...
5.-32=16b
b= 2
------------------
6.y-6= -10
y=4
---------------------
7.m divided by negative =24
m= -12



AND THE REST ARE JUST SIMPLE.
8.-15t=60=
-----------------
9.a dividedby 20= -4
---------------------------------
10.-22= -11g=
-----------------------------------
11.b divided by -37 =0

2007-11-13 16:34:22 · 3 answers · asked by Alexia M 1 in Mathematics

2007-11-13 16:30:56 · 1 answers · asked by givedamanahand 1 in Engineering

I'm in some desperate need for help on this problem I can't seem to fully wrap my head around...(the answer is perfect squares due to odd # of factors, but I must explain it clearly!! How?)

There are 1000 open lockers at a school, one locker for each of 1000 students. The first student comes in and closes all the lockers. The second student comes ina nd changes the condition of each second locker (so if a locker is closed, it is opened, and if a locker is open, it is closed). In other words, the second student opens lockers #2, 4, 6, 8, ...., 1000. Then the third student comes in and changes the condition of each third locker, i.e. opens locker #3, closes locker #6, opens locker #9, etc. The fourth student changes the condition of each fourth locker, the fifth student does so for each fifth locker, and so on, until eventually the 1000th student comes in and changes the condition of the 1000th locker. Which lockers are now closed??

2007-11-13 16:28:18 · 3 answers · asked by netsurfer733 2 in Mathematics

I have 12 multiple-choice-questions that I need your help on: http://www.tuitionplaza.com/tutoring/question.asp?GID=7&FID=0&dbqp=06589

2007-11-13 16:26:47 · 1 answers · asked by Rick Hunter 1 in Earth Sciences & Geology

i am having problems posting this question
is there anyone out there that could help me to prove to someone that the solar system exists ?

2007-11-13 16:21:39 · 24 answers · asked by Anonymous in Astronomy & Space

if...
A) the 10-watt bulb is 2 times further away than the 40-watt bulb
B) the 10-watt bulb is 4 times further away than the 40-watt bulb
C)the 40-watt bulb is 2 times further away than the 10-watt bulb
D) the 40-watt is 4 times further away than the 10-watt bulb
E) the 40-watt bulb is 8 times further away than the 10-watt bulb

2007-11-13 16:20:16 · 5 answers · asked by webb_ar 1 in Physics

My sister thinks they still exist (very few, though). Do you think so?

=/

And don't be sarcastic.

2007-11-13 16:19:27 · 9 answers · asked by Anonymous in Zoology

2007-11-13 16:19:23 · 12 answers · asked by djgirl227 1 in Mathematics

Use the given triangles to evaluate the expression. Rationalize all denominators.

I have two right triangles of a different size. The legs of the smaller triangle are both 1, and the hypotenuse is sqrt2, and the two acute angles inside the triangle are both 45 degrees.

The bigger right triangle has a small leg of 1, and the long leg of sqrt3, and a hypotenuse of two, the two angles inside of it are 60, and 30 degrees


tan 45° - sin 45°

2007-11-13 16:19:02 · 2 answers · asked by Austin J 1 in Mathematics

I had a dream where it was my wedding night, and as soon as my husband walked into the room to meet me, my desire for him manifested itself into an energy, I glowed with a silver aura
Can anyone ofter insight to this?

2007-11-13 16:17:47 · 9 answers · asked by Raquel V. 1 in Paranormal Phenomena

This is the question:

A driver traveling east on a dirt road when he spots a pothole ahead. He slows his car from 14 m/s to 5.5 m/s in 6 sec. What is the car's decelaration?

i need to know what the formula is for deceleration!?

2007-11-13 16:16:18 · 4 answers · asked by babyshade94 1 in Physics