Science & Mathematics - 10 July 2007

which calculator is best for these courses...i heard that a TI-84 Plus is very good but i would like to know if there are better calculators that have a lot of features such as graphing that is required for these courses. thank you in advance

2007-07-10 02:49:19 · 4 answers · asked by roydel s 1 in Mathematics

2007-07-10 02:45:43 · 16 answers · asked by EARTHLING99 2 in Astronomy & Space

2007-07-10 02:42:31 · 5 answers · asked by kristine mae 1 in Physics

do insects orgasm?

2007-07-10 02:37:20 · 2 answers · asked by jhseekings 2 in Zoology

My entire life, the only time I couldn't find it, is when it's cloudy outside. I've searched every night four more than 4 months now and, it's not there. I'll pick the best answer from whom ever can find it and give me proof. If it matters, I live in Northern CA., in the country. No city lights.

2007-07-10 02:37:16 · 5 answers · asked by Wendy 2 in Astronomy & Space

n(A)={1,2,3,4,8}
n(B)={5,6,7,2,3}
n(C)={2,6,9,10}
U={1,2,3,4,5,6,7,8,9,10}
Question:

n(AuB)=?
n(AuC)=?
n(AuBuC)=?
n(BuC)=?

*n means cardinality
( ) means of
(A) the set name

Please answer this question

2007-07-10 02:36:37 · 4 answers · asked by Fonso Rocks 1 in Mathematics

a) 144
b) 128
c) 425
can you please let me know how do the breakdown

2007-07-10 02:36:02 · 7 answers · asked by caz 1 in Mathematics

2007-07-10 02:33:57 · 7 answers · asked by rumbanco 1 in Other - Science

2007-07-10 02:29:00 · 3 answers · asked by Anonymous in Biology

My friend does electrical drawings in Autocad, and designs power and control circuits for the oil & gas industry. She does most of the circuit design and grounding, material specifications, and all the drawing packages for big projects.

She says she is going to change careers because engineers take all the credit for work and ideas the designers come up with.... unless there's a problem. Then it comes back to the designer.

Is this common in engineering?

2007-07-10 02:27:06 · 7 answers · asked by Anonymous in Engineering

I've been solving a math problem about complex number then suddenly I stopped at [1.116 (cos 306.54 + isin 306.54)] [4+4i]

I don't know how to continue on whether changing
[1.116 (cos 306.54 + isin 306.54)] in rectangular form then perform the operation or would it be [4+4i] to be transformed to its polar/trigonometric form then multiply the terms the usual way on how we multiply complex number in its trigonometric form. I also needed the logic behind it. Thanks!

2007-07-10 02:25:13 · 5 answers · asked by Kresnik 2 in Mathematics

What is its purpose?

2007-07-10 02:25:10 · 3 answers · asked by Anonymous in Earth Sciences & Geology

2007-07-10 02:23:19 · 13 answers · asked by CHICKA 1 in Physics

1.)A rectangular garden is to be fenced off with 100ft. of fencing material.

a.) Let x feet be the length of the garden; express the number of square feet in the area of the garden as a function of x

b.) What is the Domain of the resulting function?

2007-07-10 02:18:42 · 3 answers · asked by squall_cloud 1 in Mathematics

if we got the speed of light then we can travel from one planet to other more faster then now and many more information we can find about the universe

2007-07-10 02:05:44 · 12 answers · asked by lokesh 1 in Astronomy & Space

2007-07-10 02:03:42 · 7 answers · asked by kumar s 1 in Engineering

UV rays come frome the sun, right? if the moon is reflecting the sun's light, even at night, can you still be touched by the UV rays while walking at night?

2007-07-10 01:56:04 · 8 answers · asked by td321123 1 in Astronomy & Space

plz..help me..

2007-07-10 01:55:49 · 6 answers · asked by natsumexmikan 2 in Chemistry

I need help finishing this please,
you can have ten points:)
I need a good grade!
thank you!
1: Blood minus all cells and fibrin is called
Corpuscle
Capillary
Serum


2: A blood cell that carries oxygen to the body cells is called a(n)
red corpucle
amoeba
platelet


3: Hereditary disease condition in which the blood fails to coagulate
anemia
color blindness
hemophilia


4: Vitamin ___ in the blood is important because of the part it plays in coagulation
Vitamin K
Vitamin E
Vitamin D


5: The disease resulting from low and/or malfunctioning of hemoglobin levels in the blood
Anemia
Fainting
hemophila


6: Which one term in each of the following includes the other three?
skull
spine
endoskeleleton


7: Which one term in each of the following includes the other three?
ball and socket
joint
hinge


8: Which one term in each of the following includes the other three?
muscles
heart
biceps


9: Which one term in each of the following includes the other three?
bone
skull
ribs


10: Which one term in each of the following includes the other three?
ductless gland
thyroid
thymus


11: Which one term in each of the following includes the other three?
diabetes
high blood sugar
pancreas


12: One reason fish are easily produced in fish hatcheries is because you can directly fertilize the eggs with the sperm.
True
False
Not enough information


13: Which one term in each of the following includes the other three?
dwarfism
glandular malfunction
cretinism


14: Of what advantage is the formation of many more sperm than egg cells?
There is a greater chance at being able to reproduce.
There is no advantage
The egg can reject the sperm it does not want


15: To distinguish between metamorphosis and parthenogenesis: Metamorphosis is a marked change of form and structure undergone by an animal from embryo to adult stage and parthenogenesis is reproduction from an egg unfertilized by a spermatozoa.
True
False
Not enough information


16: What plant cells actually swim?
Rose buds
Sperm in mosses
Ferns


17: Explaiing how termites go about finding a mate and reproducing: They fly and find a partner then get a nest ready for eggs to be laid. Once everything is prepared, mating occurs.
True
False
Not enough information


18: Water plants and animals have a better chance for fertilization to take place because the water is a good carrier and will help the sperm in finding the egg.
True
False
not enough information


19: To produce eggs, no fertilization is necessary. The only consequence is that no offspring will come from those eggs.
True
False
Not enough information


20: Toads lay eggs in long strings and then the eggs are fertilized. The eggs then hatch not into a toad, but into a tadpole.
True
False
Not enough Information

2007-07-10 01:47:56 · 4 answers · asked by Anonymous in Biology

2007-07-10 01:47:41 · 29 answers · asked by Anonymous in Earth Sciences & Geology

I live in the Philippines and I wonder why our country with those others in the tropic develops very slow compared to cold countries. Does climate affects people's attitude?

2007-07-10 01:46:48 · 8 answers · asked by llaudevin 1 in Earth Sciences & Geology

my sir has told dat if we connect a capacitor in parallel to a choke coil of tubelight then all my sector's electrical applicance will be destroyed..is this true???

2007-07-10 01:44:39 · 3 answers · asked by Anup 1 in Engineering

Do fast breeders reactors violates thermodynamic laws?
It is said that they create more fuel than they use to start with, dosen't this violate the first rule saying energy and matter cannot be created and destroyed?

2007-07-10 01:38:43 · 3 answers · asked by snishry 2 in Physics

what‘s different between alumina and Bauxite？
Are they smae or similar in industry？

2007-07-10 01:30:01 · 5 answers · asked by jkwunan 1 in Chemistry

the sky blue? Now wait a minuite this is not just one of those dumb questions to get points. So please NO STUPID ANSWERS PLEASE!!!! I have heard from one source that it is becuse of the oxygen in the air but others say its blue from some form of reflection. I would really like to know.

2007-07-10 01:28:21 · 5 answers · asked by JodyS 2 in Earth Sciences & Geology

A statistic teacher wanted to see whether there is a significant difference in the ages between day students and night students. A random sample of 35 students is selected from each group. The data are given below. Test the claim that there is no difference in age between the two groups. Use alpha ewual to 0.05.

Day Students:
22 24 24 23 19 19 23 22 18 21 21 18 18 25 29 24 23 22 22 21 20 20 20 27 17 19 18 21 23 26 30 25 21 25

Evening Students
18 23 25 23 21 21 23 24 27 31 24 20 20 23 19 25 24 27 23 20 20 21 25 24 23 28 20 19 23 24 20 27 21 29 30

2007-07-10 01:27:10 · 2 answers · asked by heffie130 1 in Mathematics

Please do not provide me with anymore information about the Rotation, Revolution and Precession of the earth.. All I need is the names. Thank you.

2007-07-10 01:26:36 · 3 answers · asked by Dienne 3 in Earth Sciences & Geology

2007-07-10 01:25:50 · 5 answers · asked by erzebet 2 in Medicine

2007-07-10 01:24:29 · 21 answers · asked by mojo jojo 1 in Mathematics

explain GLS and MLL lamp

2007-07-10 01:21:42 · 5 answers · asked by Maggi 1 in Engineering