Science & Mathematics - 27 August 2007

-54/9

2007-08-27 09:01:52 · 13 answers · asked by g b 1 in Mathematics

What kind of problem is this? And where is the best place to learn how to do them?
x+3/6 = 3/8+x-5/4
Thats x plus 3 over 6 (x+3 not just 3/6) equals 3over8 plus x negative 5 over 4

2007-08-27 08:59:40 · 2 answers · asked by mort w 1 in Mathematics

I have triplets, 2 of 3 have shallow hip sockets, surgery needed someday. Seem to have more problems physically that I did as a single baby. Has this ever been researched?

2007-08-27 08:59:16 · 3 answers · asked by bobbijo 1 in Medicine

Surely, if the world was created 4,000 years ago - according to the Bible - when did dinosaurs appear?
Is there any actual scientific proof of how long ago the world was created?
Lorna

2007-08-27 08:57:15 · 12 answers · asked by Anonymous in Earth Sciences & Geology

I have agreed to tutor two children in math - they'll be in 3rd & 7th grade, and have been in alternative schooling for 3 years and are far behind. What topics do kids that age do now in math? When do they do multiplication, division, fractions, decimals, pre-algebra, etc. Any input will be much appreciated. I have experience teaching math but have no idea what each grade does, and want to help these kids as much as possible.

2007-08-27 08:56:54 · 4 answers · asked by Judy 7 in Mathematics

simplify:
1) √6(3+2√2)²=

2) √3(√2-1)²=

2007-08-27 08:53:00 · 2 answers · asked by Anonymous in Mathematics

2007-08-27 08:49:22 · 7 answers · asked by Wonder 2 in Physics

For the next problems you will need to come up with an equation for the quantity you are trying to minimize in terms of a single independent variable. then i would like you to graph the function on your calculator and use the "calculate minimum" capability of the calculator to find the answer.

1)A solid is formed by adjoining two hemispheres to the ends of a right circular cylinder. The total volume of the solid is 12 cubic centimeters. find radius of cylinder that produces the minimum surface area.
2) An industrial tank of the same shape in (1) must have a volume of 3000 cubic feet. The hemispherical ends cost twice as much per square foot of surface area as the sides. Find the dimensions that will minimize cost.

my teacher gave me that can please some one help because i don't know where to start! Thanx!

please anyone help!
i realy need this thanx

for 1) i need radius
i cant solve for h

2007-08-27 08:43:54 · 5 answers · asked by The Answer 3 in Mathematics

According to Genesis, God created fruiting trees on day 3, animals were not created till day 5.

2007-08-27 08:43:09 · 12 answers · asked by Anonymous in Biology

Is it just a little creator or what?

2007-08-27 08:42:58 · 2 answers · asked by Imarai 4 in Weather

the (9+13) is over 6 in parenthesis

2007-08-27 08:40:17 · 5 answers · asked by Diana K 1 in Mathematics

He wishes to enclose a rectangular pen subdivided into two regions by a section of fence down the middle, parallel to one side of the rectangle. Express the area enclosed by the pen as a function of its width, x.

Please explain and show ALL work. i honestly am clueless.

Thank you very much!

2007-08-27 08:38:32 · 2 answers · asked by Elizabeth 3 in Mathematics

It's 11:35 PM here, and I've been waiting for a few hours for it, but there's still nothing. Nothing in the afternoon either. When will I be able to see it? Will it even be visible from the Middle East, UAE?

2007-08-27 08:37:12 · 8 answers · asked by No Name 1 in Astronomy & Space

Find a function that represents the sum of their squares.

please show ALL work.

Thank you very much!

2007-08-27 08:36:46 · 3 answers · asked by Elizabeth 3 in Mathematics

Also, can the capacity be doubled when sistering another board to it?

2007-08-27 08:33:01 · 5 answers · asked by Spanky 1 in Engineering

What will happen aboard the ship after (proper) time t = c/g, when the ship will 'break' the speed of light barrier?

2007-08-27 08:32:59 · 3 answers · asked by Alexander 6 in Physics

the butterfly effect?

2007-08-27 08:32:36 · 6 answers · asked by Anonymous in Other - Science

(a) choose a variable and indicate what it represents, (b) set up an equation to represent the problem described, (c) solve the equation,

5. A bill from a limousine company was $510. This included $150 for the service and $80 for each hour of use. Find the number of hours that the limousine was used.

6. Last week on an algebra test, the highest grade was 9 points less than three times the lowest grade. The sum of the two grades was 135. Find the lowest and highest grades on the test.

7. Ike has some nickels and dimes amounting to $2.90. The number of dimes is 1 less than twice the number of nickels. How many coins of each kind does he have?

8. The difference of two numbers is 16. Three-fourths of the larger number is 14 larger than one-half of the smaller number. Find the numbers.

Solve the following problem using proportions.
9. Suppose that a car can travel 264 miles using 12 gallons of gasoline. How far will it go on 15gallons?

THANK YOU SO MUCH

2007-08-27 08:31:39 · 4 answers · asked by crackr 3 in Mathematics

where it is electrically accelerated .It emerges with velocity v = 4.10 106 m/s. What was its acceleration, assumed constant? (Such a process occurs in old-fashioned television sets.)

2007-08-27 08:29:27 · 1 answers · asked by Wonder 2 in Physics

PLEASE HELP

NASA has developed Deep-Space 1 (DS-1), a spacecraft that is scheduled to rendezvous with the asteroid named 1992 KD (which orbits the sun millions of miles from the earth). The propulsion system of DS-1 works by ejecting high-speed argon ions out the rear of the engine. The engine slowly increases the velocity of DS-1 by about 19.0 m/s per day.

a) How much time (in days) will it take to increase the velocity of DS-1 by 13400 m/s?

(b) What is the acceleration of DS-1 (in m/s2)?



The left ventricle of the heart accelerates blood from rest to a velocity of +25 cm/s

(c) If the displacement of the blood during the acceleration is +2.0 cm, determine its acceleration (in cm/s2).

(d) How much time does it take for the blood to reach its final velocity?


Starting from rest, a speedboat reaches a speed of 2.2 m/s in 2.2 s.

(e)What is the boat's speed after an additional 2.3 s has elapsed, assuming the boat's acceleration remains the same?

2007-08-27 08:28:55 · 1 answers · asked by atlz1anonly 1 in Physics

Solve: 6x^2 + x = 2
show work so I can understand please


thanks<3

2007-08-27 08:27:29 · 10 answers · asked by ilove y 1 in Mathematics

Just needed to know

2007-08-27 08:26:59 · 3 answers · asked by Max the Movie Maniac 2 in Earth Sciences & Geology

2007-08-27 08:23:00 · 3 answers · asked by nono 1 in Geography

Can someone please provide a step by step explanation of how you integrate

a= dv/dt

to get v = u + at



please can you explain exactly what your doing because i really dont follow this.


thanx =] x

2007-08-27 08:22:35 · 2 answers · asked by Anonymous in Physics

It seems that I have set x equal to something. How do I undo this so that my ti89 tells me it =(x^2 + 2x +1) ?

2007-08-27 08:20:40 · 5 answers · asked by RogerDodger 1 in Mathematics

1) 2.54 cm = ?
2) 67 Btu = ?

2007-08-27 08:20:01 · 1 answers · asked by the last 1 in Engineering

1) 1130 Ohms = ?
2) 3,500,000,000 bits = ?
3) 49,000 Ohms = ?
4) 13,560,000 Hz = ?

2007-08-27 08:17:07 · 0 answers · asked by lennox lewis 1 in Engineering

please help

2007-08-27 08:17:06 · 7 answers · asked by xlhollisterboi 1 in Mathematics

or neither? : S
context - attached to a very large humus molecule

2007-08-27 08:08:21 · 6 answers · asked by Anonymous in Chemistry

in other words, what are the significant applications, if any, that comes blasting through your minds, when you think of this extraordinary number[3] example-symbols-key phases,ect...

2007-08-27 08:07:35 · 6 answers · asked by Anonymous in Other - Alternative