Science & Mathematics - 14 November 2007

I am taking Algebra 2

Write the simplest polynomial function with integral coefficients that has the given zeros?

1. 2, 1 - i

2007-11-14 13:18:46 · 7 answers · asked by Alice 1 in Mathematics

A coat of area 5 has five patches on it each with an area of at least 2.5. Prove there is some pair of patches whose common (overlapping) area is at least 1.

2007-11-14 13:16:34 · 6 answers · asked by absird 5 in Mathematics

i can obviously find the square route of something but how do i find the cube route?

2007-11-14 13:15:24 · 13 answers · asked by Anonymous in Mathematics

Need help with this problem:
Trailing by two points and with only 2.0 seconds remaining in a basketball game, Amy takes a jump shot at an angle of 60 degrees with the horizontal giving the ball a velocity of 10 m/s. The ball is released at the height of the basket 3.05 m above the floor. She makes the shot.
A. How much time is left in the game when the basket is made?
B. Shots made outside the semicircle of 6.02 m radius is worth 3 points. Did amy make a 2 or a 3 point shot?

2007-11-14 13:14:39 · 1 answers · asked by suzanne d 2 in Physics

1 -2 3 2
2 -1 0 4
-3 4 0 -2
-1 1 1 5

2007-11-14 13:13:03 · 4 answers · asked by Sidney 1 in Mathematics

What is the smallest part of a centimeter that can be read or estimated with your micrometer caliper? This represents the sensitivity of the micrometer, for the sensitivity of a measuring instrument is the value of the smallest quantity that can be read or estimated with it.

2007-11-14 13:10:02 · 1 answers · asked by Anonymous in Physics

For electric circuits, what is analogous to the statement "water seeks its own level"?

please make the answer 9th grade level
only has to be 1 sentence
Thanks

2007-11-14 13:09:31 · 3 answers · asked by Anonymous in Engineering

Hi, I'm having trouble with my calculus... If someone can help me with either one of these problems, it would be very helpful.

a.) The cost of operating a bus between Moose Jaw and Saskatoon is 100+5x, where x is the number of passengers. If a ticket costs $20 there will be 10 passengers, while if a tickets costs $15, there will be 20 passengers. Assuming the demand function is linear, what is the Maximum profit?

b.) A lakefront runs east-west. A man in a rowboat is 5 miles due north of point A on the shor. He wishes to get to B, 5 miles due east of A, in the least time. He is able to row 3 miles per hour and walk 5 hour. What is the minimum time for the trip in minutes?

2007-11-14 13:09:15 · 2 answers · asked by Broken heart <3 1 in Mathematics

What's something commonplace that people do that demonstrates all of Newton's Laws? I can't think of any! Help!!!

2007-11-14 13:07:49 · 1 answers · asked by Olivia R 1 in Physics

Who thinks that some kind of event will occur on Dec 21 2012????

2007-11-14 13:07:48 · 9 answers · asked by Kevin M 2 in Astronomy & Space

2007-11-14 13:07:33 · 1 answers · asked by Kevin J 1 in Physics

I love the water and I love the moon and also my magic is alot stronger at night,so does that i was boring from the moon and i think i was adoted

2007-11-14 13:06:40 · 4 answers · asked by Anonymous in Astronomy & Space

arrange the terms in each polynomial in ascending powers of x 1)2x^3y+3xy-x^5

2007-11-14 13:06:35 · 2 answers · asked by Anonymous in Mathematics

sin x tan 3x = 0, [-180, 0]

2007-11-14 13:06:11 · 2 answers · asked by cutiepie1334 1 in Mathematics

how do u solve C=2(pie)r;r

2007-11-14 13:05:17 · 6 answers · asked by james s 2 in Mathematics

A child attempts to drink water through a 115 cm long straw, but finds that the water rises only 50 cm. By how much has the child reduced the pressure in her mouth below atmospheric pressure?

2007-11-14 13:04:55 · 1 answers · asked by wil 1 in Physics

The question goes as follows:
"Standard cell potentials are determined with 1.0 M solutions of ions. In this experiment, we will use 0.10 M solutions of Zn2+, Cu2+, Pb2+, and Ag1+ to minimize the amount of hazardous waste generated. In this series of questions, you will figure out what effect this will have on the voltages you observe.

Consider a cell consisting of a Cu2+/Cu couple, and a Ni2+/Ni couple.

a. Starting with 1.0 M solutions of ions (standard conditions), evaluate Q in the Nernst Equation."

OK, so, Q=[products]^coeff/[reactancts]^coeff. I'm figured out th equation to be 2Cu^2+ + Ni<---> Ni^2+ + 2Cu^1+ from the Standard Reduction Potential Table. The Q equation would be= [Ni]/[Cu^2+]^2, right? but I have no idea how to get the Molarities!! Is Cu^2+ 0.1M??? What's Ni?? PLease help!

2007-11-14 13:04:47 · 1 answers · asked by flaquita 1 in Chemistry

Adam rolled two standard, six sided dice once. what is the probability that he did not roll a prime number on either die? [common fraction]..remember that 36 things can happen!

2007-11-14 13:04:27 · 8 answers · asked by Anonymous in Mathematics

Why are several observations taken for each measurement?

2007-11-14 13:03:55 · 1 answers · asked by Anonymous in Physics

Okay so I don't understand this.

The problem is to solve the equation in the indicated domain

the equation is :
the cosine 3 theta times the cosine of twelve degrese minus the sine of 3 theta times the sine of twelve degrees equals one half. The domain is fomr -90 to 90 degreese and you have to find the general solution and use the general soltuion to find the critial points within the domain

I really don't understand this so if you could help me that would be great!

2007-11-14 13:02:49 · 1 answers · asked by xxinoeucitxx 1 in Mathematics

Assume that the entire mass of an atom is
concentrated in its nucleus, a sphere of ra-
dius 1:5 £ 10¡5 pm. If the mass of an atom
is 4:22 £ 10¡22 g, what is its density? The
volume of a sphere is V =4/3pir3.
Answer in units of g=cm3.

2007-11-14 13:02:14 · 1 answers · asked by roxanne n 1 in Mathematics

"wet chemical method" in a chemistry lab


also...please help me with this one if you can!! please

a mixture contains the following cations:

Hg2 +2, Ag+1, Pb +2, Hg+2, Cd+2, Bi+2, Cu+2, Sn+4, Co+2, Zn+2, Ni+2, Mn+2, Fe+2, Cr+3, Al+3, Ca+2, Al+3, Ca+2, Ba+2, Mg+2, Na+1, K+1

Describe the "Classic Scheme" for qualitative analysis of a mixture containing the above cations by seperating them into the five major groups based on solubilities. Descrive briefly the five major groups of ions in reference to solubilities.

2007-11-14 13:00:32 · 1 answers · asked by maria 2 in Chemistry

Im talking space outside of earth

2007-11-14 13:00:30 · 3 answers · asked by Anonymous in Astronomy & Space

are they the same for both disk and shell method?

thanks

2007-11-14 13:00:19 · 1 answers · asked by Nickname 3 in Mathematics

this relation is a total order on A. First prove that divides is a partial order on A, for some n .

2007-11-14 12:59:26 · 1 answers · asked by simonkf2002 1 in Mathematics

2007-11-14 12:58:15 · 9 answers · asked by Ryan A 1 in Mathematics

Sq. root of (3x^2 - 12x + 12)???

Anyone have a clue how to simplify it?

2007-11-14 12:57:24 · 3 answers · asked by Anonymous in Mathematics

That is, when the hours of sunlight is 12 hours all across the world?

Sunlight map:
http://www.die.net/earth/

2007-11-14 12:57:22 · 2 answers · asked by Anonymous in Astronomy & Space

I saw it on yahoo a couple days ago.
I never went to it though.
Does anyone Know about this?
Or have something that has the recording of it???
I'm doing a Science report and I really want to know.

2007-11-14 12:54:59 · 1 answers · asked by kelly b 1 in Astronomy & Space

Discuss why there is a meniscus when water is measured in a glass graduated cylinder. Discuss why there is no meniscus when water is measure in a plastic graduated cylinder.

2007-11-14 12:53:56 · 1 answers · asked by Riley 1 in Chemistry