Science & Mathematics - 2 February 2007

Compute:
a. slant height of face ABV
b. altitude Ov
c. area of the base
d. lateral area
e. total area

2007-02-02 17:29:32 · 2 answers · asked by jonah 1 in Mathematics

if the above statment is true wat is light?

2007-02-02 17:29:06 · 4 answers · asked by petevasquez2010 1 in Physics

2007-02-02 17:28:24 · 9 answers · asked by Doogie 1 in Chemistry

What I looked up:

The three broad categories of mammalian stem cells exist: embryonic stem cells, derived from blastocysts, adult stem cells, which are found in adult tissues, and cord blood stem cells, which are found in the umbilical cord. (http://en.wikipedia.org/wiki/Stem_cell)

A gamete is a specialized germ cell that fuses with another gamete during fertilization (conception) in organisms that reproduce sexually. In species which produce two morphologically distinct types of gametes, and in which each individual produces only one type, a female is any individual which produces the larger type of gamete—called an ovum (or egg)—and a male produces the smaller type—called a spermatozoon (or sperm cell) in animals, and a pollen grain in higher plants.
The creation of gametes is gametogenesis, and during it gametocytes divide by meiosis into gametes. Organs that produce gametes are called gonads in animals, and archegonia or antheridia in plants. The term gamete comes from the ancient Greek γαμετης (spouse).
Gametes are haploid cells; that is, they contain one complete set of chromosomes (the actual number varies from species to species). When two gametes fuse (in animals typically involving a sperm and an egg), they form a zygote—a cell that has two complete sets of chromosomes and therefore is diploid. The zygote receives one set of chromosomes from each of the two gametes through the fusion of the two gamete nuclei. (http://en.wikipedia.org/wiki/Gamete)

[edit] Production of male gametes
Researchers at the Whitehead Institute announced in 2003 that they had successfully used embryonic stem cells to produce haploid, male gametes. They found embryonic stem cells that had begun to differentiate into embryonic germ cells and then further differentiated into the male haploid cells. When injected into oocytes, these haploid cells restored the somatic diploid complement of chromosomes and formed blastocysts in vitro.[6] (http://en.wikipedia.org/wiki/Embryonic_stem_cell)

2007-02-02 17:27:12 · 3 answers · asked by raomega8 2 in Biology

Compute:
1.base edge of the rhombus
2.slant height MV
3. slant height NV
4.area of lateral face of BCV
5.area of lateral face of ABV
6.area of base
7.total area
8. is the pyramid V-ABCD a regular pyramid?

2007-02-02 17:26:44 · 3 answers · asked by jonah 1 in Mathematics

Mentally add the following: -
1000
+20
+30
+1000
+1000
+30
+1000
+20
---------

2007-02-02 17:25:05 · 15 answers · asked by sleeping_beauty1976 2 in Mathematics

why do the weather people on tv say the winds are blowing when its just WIND

2007-02-02 17:21:41 · 5 answers · asked by DANIEL H 1 in Weather

2007-02-02 17:20:49 · 4 answers · asked by handsome 2 in Chemistry

2007-02-02 17:16:10 · 3 answers · asked by Anonymous in Mathematics

2007-02-02 17:15:59 · 5 answers · asked by gogojean71741 1 in Mathematics

I know family genetics, but what is it in the family genetics that determines that? like testes tosterone level

2007-02-02 17:15:59 · 8 answers · asked by Anonymous in Other - Science

2007-02-02 17:15:13 · 5 answers · asked by Anonymous in Mathematics

who knows the answer to this... turn 60 degrees into radians without using a calculator...

2007-02-02 17:12:47 · 9 answers · asked by ~Soul Socks~ aka <Spiderwebs& 4 in Mathematics

I just took Amoxicillin and Aleve together and wonder if these two drugs are ok to take at the same time? Please help.

2007-02-02 17:12:47 · 8 answers · asked by Toothie 2 in Medicine

the dieases which is related or can be foud from blood pressure

2007-02-02 17:10:25 · 5 answers · asked by sksgmail 1 in Medicine

and hypothermia doesnt count.

2007-02-02 17:10:09 · 7 answers · asked by Derek D 1 in Weather

2007-02-02 17:06:12 · 3 answers · asked by dlehmanusa 1 in Weather

2007-02-02 17:05:38 · 3 answers · asked by Anonymous in Mathematics

In 1977, I broke the Nazi WW-II Master Race Code and MANY answers to Medical Problems came spilling out, including exactly WHAT Causes ALL Birth Defects and also HOW they all can be easily AVOIDED. Would one or more of our Geniuses in here who thinks he, or she knows everything, kindly tell me that what I claim now, is impossible and accuse me of lying like someone did to my first Question. ( I had said I've seen two different type of UFO's, but left out that one was one sighting was while an On-Duty Policemen and I were leaning against his Unit and talking in 1975 and we watched it hover until we got tired of looking at it, just sitting above a big bridge for a half hour, silently.) Before anyone answers this new question, tell us,do YOU have a life? I do and I don't know "everything," but what I DO know, I know WELL and none of it is "opinion."

2007-02-02 17:04:31 · 6 answers · asked by Alan H 1 in Medicine

is the answer 5/x^15

2007-02-02 17:02:53 · 3 answers · asked by Anonymous in Mathematics

I have an example in my book, but I don't understand how they got the answer.
6x^5(x^2 + 2)^2 - 4x^3(x^2 +2)^3 this is the numerator.
The denominator is x^8.
Then it shows that it is worked out to this:
Numerator is 2x^3(x^2 +2)^2[3x^2 - 2(x^2 + 2)]
denominator is still x^8.
I do not understand how they get the 2x^3 and where the 6x^5 is. Please explain. The final answer to the problem is
numerator is 2(x^2 +2)^2(x-2)(x+2)
denominator is x^5
Please just explain to me this problem.
Thank you so much.

2007-02-02 17:01:00 · 5 answers · asked by rwwebber4 2 in Mathematics

how do i balence boron triiodide

2007-02-02 17:00:58 · 2 answers · asked by Anonymous in Chemistry

2007-02-02 16:59:47 · 2 answers · asked by GRACIELA L H 1 in Medicine

i would like to ask, how can we preserve RNA contents in animal tissue samples...how must we stored the tissues?what solution can be used?for how long?

2007-02-02 16:59:40 · 2 answers · asked by xharm7siot 1 in Biology

a pyramid 2 m. high is cut by a plane parallel to the base, the area of the section being 1/9 that of the base. how far is the cutting plane from the base?

2007-02-02 16:59:31 · 2 answers · asked by jonah 1 in Mathematics

The equation of a straight line L is 5x+6y+30=0. k is the point (3, -1). find

b)the coordinates of the point M,at which the line L intersects the line x=2.
c) the equation of the line passing through k and parallel to L.
d) the equation of the line passing through k and parallel to the line 5y-10=0.

2007-02-02 16:58:59 · 2 answers · asked by Anonymous in Mathematics

why is it so dam blue and depressing

2007-02-02 16:58:59 · 17 answers · asked by Anonymous in Earth Sciences & Geology

A football is kicked at ground level with a speed of 20.0 m/s at an angle of 31.0° to the horizontal. How much later does it hit the ground?

2007-02-02 16:58:12 · 6 answers · asked by Jessie L 2 in Physics

When doing the calculation, should we take d as positive even if it is in the negative quadrant? I am kind of confused about this...

2007-02-02 16:58:02 · 4 answers · asked by Anonymous in Physics

Two planes approach each other head-on. Each has a speed of 725 km/h, and they spot each other when they are initially 12.0 km apart. How much time do the pilots have to take evasive action?

2007-02-02 16:57:23 · 2 answers · asked by Jessie L 2 in Physics