Mathematics - 1 September 2007

PV=nRT for R

The answer is case sensitive. P,V and T are capital letters.

2007-09-01 18:10:41 · 6 answers · asked by RedSparkle 1

2007-09-01 18:02:54 · 1 answers · asked by Anonymous

2007-09-01 17:56:38 · 7 answers · asked by mztana820 1

1/2y+3=1/6y

2007-09-01 17:56:37 · 3 answers · asked by RedSparkle 1

instructions are....
assume it has an inverse find the func. values..dont dont solve fer the inverse
problem is..x3rd+4x-1
a)f negative 1(-1)
b)fnegative1 (4)
explain how you got the answer and another problem too
14. x3rd+2x+1
a)f-1 (1)
b)f-1 (13)

2007-09-01 17:49:59 · 3 answers · asked by cristian_correa@sbcglobal.net 2

i am in accelerated algebra 3 and i cant figure this out. The case of a triangle measures 4cm less than the altitude. if the area is 30 square centimeters, find the dimensions of the triangle.

2007-09-01 17:47:12 · 3 answers · asked by Anonymous

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2007-09-01 17:36:28 · 2 answers · asked by Anonymous

I think the answer is -66, is that right?

2007-09-01 17:10:52 · 4 answers · asked by yeahyeahyeah 4

-5/3k+2/9=8- -6/5k

2007-09-01 16:51:15 · 7 answers · asked by RedSparkle 1

multiply & solve please? explain step by step since i have a test to study for monday. thanks

2007-09-01 16:46:28 · 3 answers · asked by distressed 2

4y(to the 3rd power) +3y +5 when y = -3

2007-09-01 16:30:30 · 5 answers · asked by Kiss Kiss 2

2007-09-01 16:01:16 · 3 answers · asked by nala 1

2007-09-01 15:58:46 · 10 answers · asked by LaLa 4

Hello. This problem is for homework and it's not graded for correctness, but I don't know how to solve it and it's quite bugging me. I've even asked my math tutor and she wasn't sure either... T__T
This is a problem from Calculus AB, in the chapter titled "Logarithmic, Exponential, and Other Transcendental Functions"

Here is the problem:
Air pressure~
Under ideal conditions, air pressure decreases continuously wiht height above sea level at a rate proportional to the pressure at that height. If the barometer reads 30 inches at sea level and 15 inches at 18,000 feet, find the barometric pressure at 35, 000 feet.

*I tried using proportions...but that wasn't the right answer. According to the book, the correct answer is "about 7.79 inches"
Thank you very very much in advance!

2007-09-01 15:56:54 · 3 answers · asked by she*wished 2

2007-09-01 15:53:56 · 4 answers · asked by nala 1

Find the supplementary angle to theta= 35.6 degrees

2007-09-01 15:34:55 · 4 answers · asked by Anonymous

Thanks!

2007-09-01 15:19:58 · 4 answers · asked by martinashasha 2

ur school is 18 3/4 miles south of pittsburgh and ur house is 44 1/4 miles south of pittsburgh. u leave ur school at 5:00 pm, traveling south by bicycle at an average speed of 15 miles per hour. ur father leaves pittsburgh in a car at 5:45 PM. He is driving south at an average speed of 55 miles per hour. let 't' represent the time it takes ur father to drive from pittsburgh toward ur house.


3. write an equation to find ur distance 'd1' from pittsburgh after 't' hours. the answer is d1=18 3/4 + 15(t +3/4)

4.write an equation to find ur father's distance 'd2' from pittsburgh after 't' hours. the answer is: d2=55t

5. use ur equations from exercises 3 and 4 to find how long it takes ur father to pass you

is the answer an hour and 33 minutes?

and how do i get the answer to this question

6. find the number of hours you rode your bicycle when your father passes you.

2007-09-01 15:02:32 · 2 answers · asked by Kendra C 2

a triangleis divided by a bisector thus forming two triangles. the length of the base is unknown for both triangles.the first triangle's leg measurement is 20.the other one is 13. the bisector measures 12. what is the measurement of the length of the base?

2007-09-01 15:02:08 · 2 answers · asked by avenger 2

thus, forming two right triangles out of the triangle.what is the measurement of the bisector?

2007-09-01 14:56:35 · 5 answers · asked by avenger 2

2007-09-01 14:51:00 · 9 answers · asked by Mark B 2

4y^2 + 4 = 10y

2007-09-01 14:46:39 · 9 answers · asked by Nana Callie loves to sing 4

if you have - (-5) ^3 do the two negatives cancel out each other and you are left with possitive 125? U guys should know because u are smart. thanks for the help!!

2007-09-01 14:37:52 · 4 answers · asked by Anonymous

Find the radius of a circular arc of length 12 cm that subtends a central angle of radian measure 1.5.

2007-09-01 14:35:13 · 2 answers · asked by austin 1

|x+1|=2x
this is an absolute value equation

2007-09-01 14:30:39 · 9 answers · asked by Anonymous

In one day, a store sold 8/5 as many DVDS as CDS. The Total number of DVDS and CDS sold that day was 273. How many DVDS were sold.

Here goes my equation, Is it right?

x+8/5x=273

Im having a hard time turning 8/5 into a whole number how do do this?

2007-09-01 14:15:37 · 24 answers · asked by Tinkz 1

I have a chemistry project to do and I need to write 66.32 "degrees" C

How can I make that sign?

2007-09-01 14:08:01 · 5 answers · asked by Anonymous

Find the domain of the function f (x) ={square root of} (2x+5 / 3x-2)

Read as thus: f of x equals the square root of [2x+5 divided by 3x minus 2].

Please give as much detail as possible, not just an answer!

Thanx a bunch!

2007-09-01 14:04:32 · 3 answers · asked by Anonymous

Carpeting cost $20 per square yard. You can carpet a room that has a width of 15ft for $800. What is the length of the room in feet?

It'd be helpful to give me a step-by-step process in getting the answer.
Thanks.

2007-09-01 14:00:38 · 10 answers · asked by ten marines 1

??????????????

2007-09-01 13:55:48 · 6 answers · asked by rudyspuddin 4