Science & Mathematics - 20 January 2007

2007-01-20 12:46:43 · 4 answers · asked by u_rock_my_socs 1 in Zoology

1. Write in simplified radical form: 3sqrt3/4. is the answer: 1/4
2. Write in simplified radical form: 4sqrt3x5/81y3.

3. Solve: z 3 = -343 is the answer: {7}

4. Find all real solutions: 4 (x-5) 9 = 0 is the answer: {0}

5. Find all real solutions: x 2 + 49 = 0 is the answer: {7}

6. Find all real solutions: (q-4) 2 - 2= 0 is the answer: {4-sqrt2}

7. 3sqrtz-2=4 is the answer: 0

8. Solve: z 1/2 =4 is the answer: {2}

9. Solve: 3x 2 + 5=11 is the answer: {-sqrt2, sqrt2} ?

10. The diagonal of a square measures 10 inches. What is the lenght pf the sides? is it? 5 iches?

2007-01-20 12:45:37 · 9 answers · asked by hans d 1 in Mathematics

In the xy-coordinate plane, the graph of x=(y^2)-4 intersects line L at (0, p) and (5, t). What is the greatest possible value of the slope of L?

Somebody explain to me like I'm a 2 year old how you get this.
(btw, the answer key says its 1.)

2007-01-20 12:45:21 · 4 answers · asked by EF 2 in Mathematics

2007-01-20 12:44:43 · 11 answers · asked by lakewoodskater308 1 in Mathematics

I live in florid anad every evening the last few nights, in the west, I see a very bright star/planet just after sunset. Anyone know what it's called? Tx John

2007-01-20 12:42:57 · 6 answers · asked by Anonymous in Astronomy & Space

1. What is the average depth of the average human female (Homo SApiens Sapiens) genital organ?
2. What is the average length of the male genital organ of the species Eqqus Caballus?

Please answer. My research is foundering at this point.

2007-01-20 12:42:33 · 2 answers · asked by Anonymous in Biology

Express roots to the nearest hundreth.

2007-01-20 12:39:57 · 5 answers · asked by Anonymous in Mathematics

order these fractions from least to greatest explain the stragety you usede 3/11, 1/8, 2/9

2007-01-20 12:36:50 · 12 answers · asked by Anonymous in Mathematics

thers so much out there we havent learned yet we should spend more time and find the meaning of life.

2007-01-20 12:35:48 · 7 answers · asked by CODY T 2 in Astronomy & Space

2007-01-20 12:34:22 · 5 answers · asked by Bernadette A 1 in Astronomy & Space

2007-01-20 12:33:52 · 4 answers · asked by jarland@sbcglobal.net 1 in Astronomy & Space

First correct answer gets best answer and ten points.

2007-01-20 12:33:36 · 2 answers · asked by penguin, or maniacle evil genius 3 in Geography

maybe for free?

2007-01-20 12:33:10 · 5 answers · asked by Moises A 1 in Mathematics

I am doing a project in physics under the title photometer.
I would like all the information i can get about photometer,artificial lighting,shadows.
I searched the net but there are many useless links there but only some good links.
So i post this question on yahoo.
Please answer with even a line u know about photometer.
Even if it is a single good sentence i dont care

2007-01-20 12:32:45 · 5 answers · asked by !!!!! 2 in Physics

Can someone explain how or direct me to informtion regarding the power signatures of AC motors (pumps) responds as load (head) increases? I have a pump in my aquarium that is rated at 120watts, but installed with the plumbing it only draws about 55 watts (measured with a kill-a-watt device). This surprised me, but apparently it shouldnt. Any details would be great, but i'd really love the technical side/equations. Thanks!!

2007-01-20 12:32:44 · 1 answers · asked by chris v 2 in Engineering

2007-01-20 12:31:04 · 7 answers · asked by justin200501 1 in Zoology

2007-01-20 12:30:31 · 3 answers · asked by bananasplit1744 2 in Astronomy & Space

I enjoy the museum website, but I want the center to display more natural and international items of nature besides local specimens. For instance, they can have exhibits that deal with plants and animals of a tropical rainforest and/or Eastern US region. Also, I would like for the museum to have some dinosaur skeletons and more prehistoric fossil displays in their collections.

2007-01-20 12:30:01 · 1 answers · asked by grasshopper_60619 2 in Earth Sciences & Geology

I need to know where the camels heart is. One of the article says that is on the underside of the root of the tail. Wouldnt that be hard for the blood that is oxygen filled to travel to. And if anyone by chance knows where i can find internal anatomy diagrom on the website, it would be greatly appreciated!

2007-01-20 12:28:58 · 2 answers · asked by Anonymous in Zoology

2007-01-20 12:26:59 · 7 answers · asked by Pink Freud 1 in Other - Science

does anyone know how fast hot air can move.

and can someone please give me the math/physics formula behind the speed and acceleration of hot air.

2007-01-20 12:25:44 · 1 answers · asked by Anonymous in Physics

The mass of a human liver scales allometrically as ML = 0.082 x MB^0.87, where MB is the individual's body mass. Suppose the body mass of an individual increases by 30%. What is the percent increase in the mass of their liver?

here's my work..using a person who was originally 140lbs

original size of liver:
ML = 0.082 x (140^0.87)
ML = 6.04

increased size of liver with 30% increase in MB:
ML = 0.082 x (182^0.87)
ML = 7.58

so..percent increase of liver :

7.58 - 6.04 = 1.54
(1.54 / 6.04) x 100 = 25.5% increase

does that look right?

2007-01-20 12:23:53 · 3 answers · asked by sky l 1 in Mathematics

Esther drove to work in the morning at an average speed of 45 mph and returned home in the evening at an average speed of 30 mph. If she spent a total of one hour commuting to and from work, how many miles did she drive in the morning?

The answer is 18 mi. Can anyone explain why?

2007-01-20 12:21:54 · 7 answers · asked by EF 2 in Mathematics

the first part was to draw a diagram to illustrate this situation...i drew it but am not sure too... plz answer

2007-01-20 12:20:45 · 2 answers · asked by Mo 1 in Mathematics

well, why is it?

2007-01-20 12:18:12 · 8 answers · asked by Anonymous in Earth Sciences & Geology

2007-01-20 12:17:48 · 2 answers · asked by thinktank 2 in Chemistry

is this double displacement reaction..?

CuOH2 +HCl=

2007-01-20 12:17:35 · 1 answers · asked by Anonymous in Chemistry

I'm working for a problem and I need some help...

Consider the definite integral: (2X+1)dx with b=3,a=1

I used the fundamental theorem and got the answer 10

but when I used riemann sum I got 12.

Why is that?

2007-01-20 12:15:58 · 5 answers · asked by Anonymous in Mathematics

2007-01-20 12:11:21 · 6 answers · asked by Franz 2 in Chemistry

2007-01-20 12:10:23 · 10 answers · asked by Cactus flower 1 in Weather